Communication method and related device

Abstract

The embodiment of the invention provides a communication method, in which terminal equipment can determine frequency domain resources used for transmission on a plurality of first frequency domain resources according to a plurality of pieces of frequency domain resource allocation (FDRA) information in first information, and the frequency domain resources used for transmission on the plurality of first frequency domain resources are transmitted on the terminal equipment according to the FDRA information in the first information. And determining at least two second frequency domain resources in the plurality of first frequency domain resources for cross-frequency domain resource transmission through at least one indication bit in the second information, thereby performing cross-frequency domain resource transmission on the frequency domain resource for transmission in the at least two second frequency domain resources. Therefore, a plurality of fragmented frequency domain ranges can be integrated to facilitate frequency domain scheduling of network equipment, and throughput of terminal equipment can be improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and related apparatus. Background Technology

[0002] With the development of network technology, the demands of services within terminals on network speed are increasing. Currently, carrier aggregation (CA) technology is often used to combine multiple continuous or non-contiguous component carriers (CCs) into a larger bandwidth, in order to increase the resources that the terminal can utilize simultaneously and improve the user's peak rate experience.

[0003] Currently, uplink CA transmission is often performed concurrently on multiple CCs.

[0004] However, due to varying wireless spectrum planning in different regions, there are situations where the available continuous uplink bandwidth is limited. Furthermore, the concurrent mode results in multiple fragmented common-mode (CC) connections, which significantly restricts the throughput of individual terminals. Summary of the Invention

[0005] This application provides a communication method and related apparatus. A terminal device can determine the frequency domain resources used for transmission on multiple first frequency domain resources based on multiple frequency domain resource allocation FDRA information in the first information, and determine at least two second frequency domain resources among the multiple first frequency domain resources for cross-frequency domain resource transmission through at least one indicator bit in the second information. This allows cross-frequency domain resource transmission to be performed on the frequency domain resources used for transmission among at least two second frequency domain resources. This not only integrates multiple fragmented frequency domain ranges to facilitate frequency domain scheduling by network devices, but also improves the throughput of the terminal device.

[0006] This application provides a communication method in its first aspect. This method is executed by a terminal device / network device, or by a component (e.g., processor, chip, or chip system) within the terminal device / network device, or by a logic module or software capable of implementing all or part of the functions of the terminal device / network device. In the first aspect and its possible implementations, the method is described using the example of execution by a terminal device. The terminal device determines first information and second information, and performs cross-frequency domain resource transmission over at least two second frequency domain resources. Of course, the method in the first aspect can also involve a network device determining the first information and second information, and performing cross-frequency domain resource transmission over at least two second frequency domain resources. It is understood that the above method can be applied to uplink, downlink, terminal device-to-terminal device, network device-to-network device, etc., or it can be understood that transmission can refer to sending or receiving. That is, performing cross-frequency domain resource transmission can be sending cross-frequency domain resource transmission or performing cross-frequency domain resource sending, or receiving cross-frequency domain resource transmission or performing cross-frequency domain resource receiving.

[0007] The first information includes multiple frequency domain resource assignment (FDRA) information, and the second information includes at least one indicator bit. The multiple FDRA information corresponds to multiple first frequency domain resources, and the at least one indicator bit is used to indicate that at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0008] Alternatively, the first information is used to indicate first transmission resources on multiple first frequency domain resources, and the second information includes at least one indication bit, which is used to indicate that the first transmission resources on at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission. Furthermore, the terminal device performs cross-frequency domain resource transmission on the first transmission resources on at least two second frequency domain resources. The first transmission resources may include at least one of the following: time domain resources and frequency domain resources. That is, the first transmission resources may include time domain resources, frequency domain resources, or time-frequency resources.

[0009] It is understood that the description based on the first transmission resource and the description based on the first frequency domain resource are parallel or interchangeable. They can be substituted for each other, used as independent solutions, or used in combination; no restrictions are placed here. This description applies to all embodiments of the present invention.

[0010] Based on the above scheme, the terminal device can determine the frequency domain resources used for transmission on multiple first frequency domain resources according to the multiple frequency domain resource allocation FDRA information in the first information, and determine at least two second frequency domain resources among the multiple first frequency domain resources for cross-frequency domain resource transmission through at least one indicator bit in the second information, thereby performing cross-frequency domain resource transmission on the frequency domain resources used for transmission among at least two second frequency domain resources. This not only integrates multiple fragmented frequency domain ranges to facilitate frequency domain scheduling of network devices, but also improves the throughput of the terminal device.

[0011] Optionally, in one possible implementation of the first aspect, the aforementioned terminal device may further send capability information to the network device. The capability information is used to indicate at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0012] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). However, the second frequency domain granularity of the frequency domain resources used by the first transmission resource is lower than the aforementioned first frequency domain granularity.

[0013] For example, the first frequency domain granularity includes CC, bandwidth part (BWP), and band. The second frequency domain granularity includes Physical Resource Block (PRB), Resource Block (RB), Resource Element (RE), RE set, and subcarrier.

[0014] In this possible implementation, several new terminal device capabilities are defined so that the terminal device can report based on its own hardware and software capabilities to transmit cross-frequency domain resources within the supported range, and facilitate the network to perform appropriate scheduling for the terminal based on the terminal's capability report so that the terminal device can obtain throughput gain.

[0015] Optionally, in one possible implementation of the first aspect, the terminal device described above may further determine third information, the third information including at least one time domain resource assignment (TDRA) information, the at least one TDRA information being used to indicate a first time domain resource for cross-frequency domain resource transmission; cross-frequency domain resource transmission on at least two second frequency domain resources includes: cross-frequency domain resource transmission on at least two second frequency domain resources and on the first time domain resource, the third frequency domain resource being the frequency domain resource on at least two second frequency domain resources indicated by the TDRA information.

[0016] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0017] In this possible implementation, the terminal device can directly determine the TDRA information through third or first information. This is equivalent to the network device directly indicating the time-domain information for cross-frequency domain resource transmission, thereby improving the efficiency of the terminal device in determining the time-domain information and ensuring that the terminal device can perform cross-frequency domain resource transmission on the corresponding time and frequency domain resources.

[0018] Optionally, in one possible implementation of the first aspect, the terminal device may further determine fourth information, which includes at least one time-domain resource allocation (TDRA) information. The at least one TDRA information is used to indicate the second time-domain resource corresponding to the third frequency-domain resource on the reference second frequency-domain resource among at least two second frequency-domain resources. The reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources. The third time-domain resource corresponding to the third frequency-domain resource on the second frequency-domain resources other than the reference second frequency-domain resource among at least two second frequency-domain resources is aligned with the second time-domain resource. Cross-frequency-domain resource transmission on at least two second frequency-domain resources includes: cross-frequency-domain resource transmission on the third frequency-domain resource and the second time-domain resource and the third time-frequency resource determined by the third time-domain resource on at least two second frequency-domain resources.

[0019] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0020] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0021] In this possible implementation, the terminal device can determine the reference time-domain resource through the fourth information or the first information, and then determine all time-domain resources. That is, the terminal device can indirectly determine the TDRA information through the fourth information. Thus, the network device does not need to instruct the transmission of time-domain information corresponding to each second frequency-domain resource across frequency-domain resources, thereby reducing the signaling overhead caused by time-domain resource indication.

[0022] Optionally, in one possible implementation of the first aspect, the terminal device described above may further determine sixth information, which includes a plurality of first indication information and a second indication information. The plurality of first indication information is used to indicate the starting position of the time domain resources for cross-frequency domain resource transmission, and the second indication information is used to indicate the number of time domain resources and / or the number of repetitions for cross-frequency domain resource transmission. The plurality of first indication information corresponds one-to-one with the plurality of first frequency domain resources or at least two second frequency domain resources.

[0023] Alternatively, the first information may also include multiple first indication information and one second indication information, wherein the multiple first indication information is used to indicate the starting position of the time domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources, and the second indication information is used to indicate the number of time domain resources contained in the first transmission resources or the number of repetitions.

[0024] In this possible implementation, by indicating the number of time-domain resources and / or the number of repetitions in the second indicator bit of the sixth information, the overhead caused by separately indicating the time-domain resources corresponding to each second frequency-domain resource can be reduced. That is, the number of indicator bits for indicating the number of time-domain resources in the TDRA information can be reduced. For example, the number of time-domain resources or the number of repetitions can be indicated only once.

[0025] Optionally, in one possible implementation of the first aspect, the aforementioned terminal device may further determine seventh information, which includes a third indication information for indicating the starting position of the time-domain resources for cross-frequency domain resource transmission, the number of time-domain resources, and / or the number of repetitions.

[0026] Alternatively, the first information may also include a third indication information, which indicates the starting position, the number of time-domain resources, and / or the number of repetitions of the time-domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources.

[0027] Understandably, the third indication information indicates the starting position of the time-domain resources included in the first transmission resource, the number of time-domain resources, and / or the number of repetitions, indicating that the time-domain resources included in the first transmission resource on each first frequency domain resource or each second frequency domain resource are determined according to the same indication, that is, indicated only once, and the indication is applied to each first frequency domain resource or each second frequency domain resource.

[0028] In this possible implementation, the starting position of the time-domain resource, the number of time-domain resources, and / or the number of repetitions of the cross-frequency-domain resource transmission are indicated by the third indication information, which is applied to each first frequency-domain resource or each second frequency-domain resource. This can reduce the overhead caused by indicating the time-domain resources corresponding to each second frequency-domain resource separately.

[0029] The second aspect of this application provides a communication method, which is executed by a network device / terminal device, or by a component (e.g., processor, chip, or chip system) within the network device / terminal device, or by a logic module or software capable of implementing all or part of the functions of the network device / terminal device. In this second aspect and its possible implementations, the method is described as being executed by a network device. The network device sends first information and second information to configure or instruct the terminal device to perform cross-frequency domain resource transmission on at least two second frequency domain resources. Of course, similar to the first aspect described above, the method of this second aspect can also be executed by the terminal device, in which case the terminal device sends first information and second information and instructs the network device to perform cross-frequency domain resource transmission on at least two second frequency domain resources. It is understood that the above method can be applied to uplink, downlink, terminal device-to-terminal device, network device-to-network device, etc., or it can be understood that transmission can refer to sending or receiving. That is, performing cross-frequency domain resource transmission can be sending cross-frequency domain resource transmission or performing cross-frequency domain resource sending, or receiving cross-frequency domain resource transmission or performing cross-frequency domain resource receiving.

[0030] The first information includes multiple frequency domain resource allocation (FDRA) information, and the second information includes at least one indicator bit. The multiple FDRA information correspond to multiple first frequency domain resources respectively, and the at least one indicator bit is used to indicate that at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0031] Alternatively, the first information is used to indicate first transmission resources on multiple first frequency domain resources, and the second information includes at least one indication bit, which is used to indicate that the first transmission resources on at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission. Furthermore, the terminal device performs cross-frequency domain resource transmission on the first transmission resources on at least two second frequency domain resources. The first transmission resources may include at least one of the following: time domain resources and frequency domain resources.

[0032] Based on the above scheme, network devices can use the FDRA information in the first information to indicate to the terminal device which frequency domain resources on multiple first frequency domain resources are used for transmission, and use at least one indication bit in the second information to indicate that at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission. This enables the terminal device to perform cross-frequency domain resource transmission on at least two second frequency domain resources used for transmission. This not only integrates multiple fragmented frequency domain ranges to facilitate frequency domain scheduling by network devices, but also improves the throughput of the terminal devices.

[0033] Optionally, in one possible implementation of the second aspect, the network device described above may also receive capability information, which is used to indicate at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0034] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). The frequency domain resources used or included in the first transmission resource are a general term. Optionally, the frequency domain granularity of the frequency domain resources used or included in the first transmission resource can be either the first frequency domain granularity or the second frequency domain granularity, with the second frequency domain granularity being lower than the aforementioned first frequency domain granularity.

[0035] For example, the first frequency domain granularity includes CC, BWP, band, etc. The second frequency domain granularity includes PRB, RB, RE, RE set, subcarrier, etc.

[0036] In this possible implementation, the terminal device reports multiple new terminal device capabilities, so that the network device can schedule the terminal device according to the capability information. For example, it can perform cross-frequency domain resource transmission within the supported range, and facilitate the network to perform appropriate scheduling for the terminal based on the terminal's capability report, so that the terminal device can obtain throughput gain.

[0037] Optionally, in one possible implementation of the second aspect, the network device described above may further send third information, the third information including at least one Time Domain Resource Allocation (TDRA) information, the at least one TDRA information being used to indicate a first time domain resource for cross-frequency domain resource transmission; cross-frequency domain resource transmission over at least two second frequency domain resources includes: cross-frequency domain resource transmission over a third frequency domain resource on at least two second frequency domain resources and the first time domain resource, the third frequency domain resource being the frequency domain resource on the at least two second frequency domain resources indicated by the FDRA information.

[0038] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0039] In this possible implementation, the third information sent by the network device is used by the terminal device to directly determine the TDRA information. This is equivalent to the network device directly instructing the time-domain information for cross-frequency domain resource transmission, thereby improving the efficiency of the terminal device in determining the time-domain information and ensuring that the terminal device can perform cross-frequency domain resource transmission on the corresponding time-domain and frequency-domain resources.

[0040] Optionally, in one possible implementation of the second aspect, the network device may further transmit fourth information, which includes at least one Time Domain Resource Allocation (TDRA) information. The at least one TDRA information is used to indicate the second time domain resource corresponding to the third frequency domain resource on the reference second frequency domain resource among at least two second frequency domain resources. The reference second frequency domain resource is at least one of the following among at least two second frequency domain resources: the second frequency domain resource with the smallest subcarrier spacing (SCS), the second frequency domain resource with the largest SCS, the second frequency domain resource where the signaling carrying the fourth information is located, and the second frequency domain resource with the smallest index among at least two second frequency domain resources. The third time domain resource corresponding to the third frequency domain resource on the second frequency domain resources other than the reference second frequency domain resource among at least two second frequency domain resources is aligned with the second time domain resource. Cross-frequency domain resource transmission on at least two second frequency domain resources includes: cross-frequency domain resource transmission on the third frequency domain resource and the second time domain resource, and the third time-frequency resource determined by the third time domain resource on at least two second frequency domain resources.

[0041] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0042] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0043] In this possible implementation, the fourth information sent by the network device is used by the terminal device to determine the reference time-domain resources, and then to determine all time-domain resources. That is, the terminal device can indirectly determine the TDRA information through the fourth information. Thus, the network device does not need to instruct the transmission of time-domain information corresponding to each second frequency-domain resource across frequency-domain resources, thereby reducing the signaling overhead caused by time-domain resource indication.

[0044] Optionally, in one possible implementation of the second aspect, the network device described above may also send a sixth message, which includes a plurality of first indication messages and a second indication message. The plurality of first indication messages are used to indicate the starting position of the time domain resources for cross-frequency domain resource transmission, and the second indication message is used to indicate the number of time domain resources and / or the number of repetitions for cross-frequency domain resource transmission. The plurality of first indication messages correspond one-to-one with the plurality of first frequency domain resources or at least two second frequency domain resources.

[0045] Alternatively, the first information may also include multiple first indication information and one second indication information, wherein the multiple first indication information is used to indicate the starting position of the time domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources, and the second indication information is used to indicate the number of time domain resources contained in the first transmission resources or the number of repetitions.

[0046] In this possible implementation, by indicating the number of time-domain resources and / or the number of repetitions in the second indicator bit of the sixth information, the overhead caused by separately indicating the time-domain resources corresponding to each second frequency-domain resource can be reduced. That is, the number of indicator bits indicating the number of time-domain resources in the TDRA information can be reduced.

[0047] Optionally, in one possible implementation of the second aspect, the network device described above may also send a seventh message, which includes a third indication message for indicating the starting position of the time domain resources for cross-frequency domain resource transmission, the number of time domain resources, and / or the number of repetitions.

[0048] Alternatively, the first information may also include a third indication information, which indicates the starting position, the number of time-domain resources, and / or the number of repetitions of the time-domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources.

[0049] In this possible implementation, the overhead caused by indicating the start position of the time domain resources, the number of time domain resources and / or the number of repetitions of the cross-frequency domain resource transmission through the third indication information can be reduced.

[0050] Optionally, in one possible implementation of the first or second aspect, the aforementioned plurality of FDRA information is carried in a downlink control information, wherein the number of at least one indicator bit is 1, and the at least one indicator bit is specifically used to indicate that the plurality of first frequency domain resources are used for cross-frequency domain resource transmission.

[0051] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information are carried in a downlink control information, and the number of at least one indicator bit is 1. The at least one indicator bit is specifically used to indicate that the first transmission resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0052] In this possible implementation, a single indicator bit can be used to indicate whether the frequency domain resources corresponding to multiple FDRA information are used for cross-frequency domain resource transmission, which can improve scheduling efficiency while reducing indicator overhead.

[0053] Optionally, in one possible implementation of the first or second aspect, the aforementioned plurality of FDRA information is carried in a downlink control information, at least one indication bit includes a plurality of second indication bits, the plurality of second indication bits correspond one-to-one with a plurality of first frequency domain resources, and the plurality of second indication bits are specifically used to indicate that at least two of the plurality of first frequency domain resources are used for cross-frequency domain resource transmission.

[0054] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information is carried in a downlink control information. At least one indication bit includes multiple second indication bits, which correspond one-to-one with the multiple first frequency domain resources. The multiple second indication bits are specifically used to indicate that the first transmission resources on at least two of the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0055] In this possible implementation, multiple indicator bits can be used to indicate whether the frequency domain resources corresponding to multiple FDRA information are used for cross-frequency domain resource transmission, thereby achieving scheduling flexibility for the frequency domain resources corresponding to multiple FDRA information.

[0056] Optionally, in one possible implementation of the first or second aspect, the values ​​of the second indicator bits corresponding to the at least two second frequency domain resources are the same.

[0057] In this possible implementation, multiple second indicator bits are used to indicate whether the frequency domain resources corresponding to multiple FDRA information are used for cross-frequency domain resource transmission. FDRAs with the same value for multiple second indicator bits correspond to frequency domain resources used for cross-frequency domain resource transmission. Thus, the terminal device can quickly determine the frequency domain resources used for cross-frequency domain resource transmission based on the value of the second indicator bits, thereby reducing the complex judgment process before transmission, improving transmission efficiency, reducing signaling overhead, and enabling the scheduling of multiple cross-frequency domain resource transmissions within a single DCI, or the simultaneous scheduling of cross-frequency domain resource transmission and conventional single-carrier transmission, improving scheduling efficiency.

[0058] Optionally, in one possible implementation of the first or second aspect, the aforementioned plurality of FDRA information are respectively carried in a plurality of downlink control information, at least one indicator bit includes a plurality of third indicator bits, the plurality of third indicator bits correspond one-to-one with a plurality of first frequency domain resources, the plurality of third indicator bits correspond one-to-one with a plurality of FDRA information, and the values ​​of the second indicator bits corresponding to at least two second frequency domain resources are the same.

[0059] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information are respectively carried in multiple downlink control information. At least one indication bit includes multiple third indication bits, which correspond one-to-one with multiple first frequency domain resources and one-to-one with multiple FDRA information. The values ​​of the second indication bits corresponding to at least two second frequency domain resources are the same.

[0060] In this possible implementation, the network device indicates the FDRA information through multiple downlink control information (DCI) messages, and indicates the frequency domain resources used for cross-frequency domain resource transmission by adding a third indicator bit. The network can flexibly schedule cross-frequency domain resources and regular single carriers as needed.

[0061] Optionally, in one possible implementation of the first or second aspect, the transport block size of the aforementioned cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource elements (REs) of the time-frequency resources used for cross-frequency domain resource transmission, and the time-frequency resources used for cross-frequency domain resource transmission are based on a third frequency domain resource including at least two second frequency domain resources and the corresponding time domain resource.

[0062] Alternatively, the transport block size for cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource elements (REs) contained in the first transport resources on at least two second frequency domain resources.

[0063] In this possible implementation, the transport block size can be calculated based on the total available resources on at least two frequency domain resources used for cross-frequency domain resource transmission, thereby increasing the amount of data transmitted and improving throughput performance.

[0064] Optionally, in one possible implementation of the first or second aspect, the time-frequency resources for cross-frequency domain resource transmission include third frequency domain resources on at least two second frequency domain resources and corresponding time domain resources. The mapping method used for cross-frequency domain resource transmission includes any one of the following: frequency domain mapping followed by time domain mapping on the time-frequency resources; frequency domain mapping followed by time domain mapping on the time-frequency resources of each of the at least two second frequency domain resources, and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the time-frequency resources; and time domain mapping followed by frequency domain mapping on the time-frequency resources of each of the at least two second frequency domain resources, and then cross-second frequency domain resource mapping.

[0065] Alternatively, the mapping method used for cross-frequency domain resource transmission includes any of the following: frequency domain mapping followed by time domain mapping on the first transmission resource; frequency domain mapping followed by time domain mapping on the first transmission resource of each of at least two second frequency domain resources, and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the first transmission resource; and time domain mapping followed by frequency domain mapping on the first transmission resource of each of at least two second frequency domain resources, and then cross-second frequency domain resource mapping.

[0066] In this possible implementation, since it involves cross-frequency domain resource transmission, several feasible resource mapping methods are given above, which can adapt to different scenario needs, such as time-varying channels, frequency-selective channels, and wireless channel environment fluctuations, thereby improving the applicability of the solution.

[0067] Optionally, in one possible implementation of the first or second aspect, the transport block size for the aforementioned cross-frequency domain resource transmission is determined based on a reference value, wherein the reference value is at least one of the following:

[0068] The preset value (e.g., a configured, pre-configured, or predefined value), the sum of the number of REs for time-frequency resources used for cross-frequency-domain resource transmission on each of at least two second frequency-domain resources, the average number of resource element REs for time-frequency resources used for cross-frequency-domain resource transmission on each of at least two second frequency-domain resources, the time-frequency resources including third frequency-domain resources and corresponding time-domain resources on at least two second frequency-domain resources, and the number of resource element REs for time-frequency resources used for cross-frequency-domain resource transmission on reference second frequency-domain resources in at least two second frequency-domain resources.

[0069] Alternatively, the transport block size for cross-frequency domain resource transmission is determined based on a reference value, which is at least one of the following: a preset value (e.g., a configured, pre-configured, or predefined value), the sum of the number of REs contained in the first transport resource on each of at least two second frequency domain resources, the average number of REs contained in the first transport resource on each of at least two second frequency domain resources, and the number of REs contained in the first transport resource of a reference second frequency domain resource in at least two second frequency domain resources.

[0070] In this possible implementation, the transport block size is determined by introducing a reference value, which provides a new scheme for calculating the transport block size, thereby facilitating flexible scheduling of network devices.

[0071] Optionally, in one possible implementation of the first or second aspect, the redundant version RV of the cross-frequency domain resource transmission described above is determined according to the RV pattern for each of the at least two second frequency domain resources.

[0072] In this possible implementation, the redundant version (RV) transmitted on each second frequency domain resource is determined according to the RV pattern. For example, different RVs are used for transmission, so that the receiver can obtain soft combining gain, thereby the transmitter can increase the code rate to obtain higher throughput, or obtain a longer coverage distance without changing the code rate.

[0073] Optionally, in one possible implementation of the first or second aspect, the aforementioned plurality of FDRA information is used to indicate the starting position of the frequency domain resources of the third frequency domain resources on a plurality of first frequency domain resources or on at least two second frequency domain resources, wherein the number of frequency domain resources of the third frequency domain resources on each of the at least two second frequency domain resources is the same.

[0074] Alternatively, the first information may include multiple frequency domain resource allocation (FDRA) information, which are used to indicate the starting position of the frequency domain resources contained in the first transmission resources on multiple first frequency domain resources or on at least two second frequency domain resources, wherein the number of frequency domain resources contained in the first transmission resources on each of the at least two second frequency domain resources is the same.

[0075] In this possible implementation, the number of third frequency domain resources on each of the at least two second frequency domain resources is the same, which can reduce the overhead caused by indicating the number of each second frequency domain resource separately. That is, it can reduce the number of indication bits for indicating the number of frequency domain resources in the FDRA information. For example, the number of frequency domain resources can be indicated only once.

[0076] Optionally, in one possible implementation of the first or second aspect, the number of bits and / or quantity of FDRA fields included in the first information described above are determined according to one or more of the following: a third value, a fourth value, a sixth value, and a seventh value.

[0077] The third value is the sum of the number of frequency domain units contained in the fourth frequency domain resource and the number of frequency domain units contained in at least one fifth frequency domain resource. The fourth frequency domain resource is the second frequency domain resource in which the first information is located among at least two second frequency domain resources. The at least one fifth frequency domain resource is a frequency domain resource in the configured plurality of frequency domain resources whose frequency range is higher than that of the fourth frequency domain resource.

[0078] The fourth value is the sum of the third and fifth values. The fifth value is the number of frequency domain units contained in the first frequency domain interval, or the fifth value is the sum of the number of frequency domain units contained in the first frequency domain interval and the number of frequency domain units contained in the second frequency domain interval. The first frequency domain interval is the frequency domain interval between the fourth frequency domain resource and the fifth frequency domain resource that is adjacent to the frequency domain range / index. The second frequency domain interval is the frequency domain interval between at least two fifth frequency domain resources.

[0079] The sixth value is the fourth frequency domain resource, plus the sum of the number of frequency domain resources with a frequency range higher than the fourth frequency domain resource among the configured frequency domain resources;

[0080] The seventh value is the number of frequency domain units contained in each frequency domain resource, among the number of frequency domain resources in the fourth frequency domain resource and the number of frequency domain resources in the configured multiple frequency domain resources with frequency ranges higher than the fourth frequency domain resource.

[0081] In this possible implementation, the size of the FDRA domain can be determined by using the second frequency domain resources where the first information is located as a reference, thereby reducing signaling overhead and ensuring that the terminal equipment can correctly blindly detect FDRA information or DCI.

[0082] A third aspect of this application provides a communication method, which is executed by a terminal device / network device, or by a component (e.g., processor, chip, or chip system) within the terminal device / network device, or by a logic module or software capable of implementing all or part of the functions of the terminal device / network device. In this third aspect and its possible implementations, the method is described using the example of execution by a terminal device. The terminal device receives first information and performs cross-frequency domain resource transmission on third frequency domain resources. Similarly, as with the first aspect described above, the method in the third aspect can also involve a network device determining the first information and performing cross-frequency domain resource transmission on third frequency domain resources. It is understood that the above method can be applied to uplink, downlink, terminal device-to-terminal device, network device-to-network device, etc., or it can be understood that transmission can refer to sending or receiving. That is, performing cross-frequency domain resource transmission can be sending cross-frequency domain resource transmission or performing cross-frequency domain resource sending, or receiving cross-frequency domain resource transmission or performing cross-frequency domain resource receiving.

[0083] The first information includes a frequency domain resource allocation (FDRA) field, which is used to indicate a third frequency domain resource. The third frequency domain resource includes frequency domain resources on at least two of the second frequency domain resources among a plurality of first frequency domain resources. The third frequency domain resource is used for cross-frequency domain resource transmission.

[0084] In this possible implementation, the terminal device can directly determine the third frequency domain resource used for cross-frequency domain resource transmission through the FDRA field in the first information, and thus cross-frequency domain resource transmission can be performed through the third frequency domain resource. That is, the efficiency of cross-frequency domain resource transmission can be improved through the agreed frequency domain resource.

[0085] Optionally, in one possible implementation of the third aspect, the aforementioned terminal device may further determine third information, which includes a Time Domain Resource Allocation (TDRA) domain, the TDRA domain being used to indicate a first time domain resource for cross-frequency domain resource transmission; cross-frequency domain resource transmission over at least two second frequency domain resources includes: cross-frequency domain resource transmission over a third frequency domain resource on at least two second frequency domain resources and the first time domain resource, wherein the third frequency domain resource is a third frequency domain resource on at least two second frequency domain resources indicated by the FDRA domain.

[0086] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0087] In this possible implementation, the terminal device can determine the TDRA domain through third information or first information, and clarify the first time domain resource used for cross-frequency domain resource transmission. That is, the efficiency of cross-frequency domain resource transmission can be improved by using the agreed first time domain resource, and the terminal device can perform cross-frequency domain resource transmission on the corresponding time domain and frequency domain resources.

[0088] Optionally, in one possible implementation of the third aspect, the terminal device described above may further determine fourth information, which includes at least one Time Domain Resource Allocation (TDRA) field. The at least one TDRA field is used to indicate the second time domain resource corresponding to the third frequency domain resource on the reference second frequency domain resource among at least two second frequency domain resources. The reference second frequency domain resource is at least one of the following among at least two second frequency domain resources: the second frequency domain resource with the smallest subcarrier spacing (SCS), the second frequency domain resource with the largest SCS, the second frequency domain resource where the signaling carrying the fourth information is located, and the second frequency domain resource with the smallest index among at least two second frequency domain resources. The third time domain resource corresponding to the third frequency domain resource on the second frequency domain resources other than the reference second frequency domain resource is aligned with the second time domain resource. Cross-frequency domain resource transmission on at least two second frequency domain resources includes: cross-frequency domain resource transmission on the third frequency domain resource and the second time domain resource, and the third time-frequency resource determined by the third time domain resource on at least two second frequency domain resources.

[0089] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0090] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0091] In this possible implementation, the terminal device can determine the reference time-domain resource through the fourth information or the first information, and then determine all time-domain resources. That is, the terminal device can indirectly determine the TDRA information through the fourth information. This is equivalent to the network device indirectly indicating the time-domain information transmitted across frequency-domain resources, thereby reducing the communication overhead caused by indicating all time-domain resources.

[0092] Optionally, in one possible implementation of the third aspect, the aforementioned terminal device may further transmit capability information, which indicates at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0093] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). However, the second frequency domain granularity of the third frequency domain resource is lower than the aforementioned first frequency domain granularity.

[0094] For example, the first frequency domain granularity includes CC, BWP, band, etc. The second frequency domain granularity includes PRB, RB, RE, RE set, subcarrier, etc.

[0095] In this possible implementation, several new terminal device capabilities are defined so that the terminal device can report according to its own hardware and software capabilities to perform cross-frequency domain resource transmission within the supported range and obtain throughput gain.

[0096] This application provides a fourth aspect of a communication method, which is executed by a network device, or by a component (e.g., a processor, chip, or chip system) within the network device, or by a logic module or software capable of implementing all or part of the network device's functions. In this fourth aspect and its possible implementations, the method is described as being executed by a network device. The network device sends first information, which includes a Frequency Domain Resource Allocation (FDRA) domain. The FDRA domain indicates a third frequency domain resource, which includes frequency domain resources on at least two second frequency domain resources among a plurality of first frequency domain resources. The third frequency domain resource is used for cross-frequency domain resource transmission. A terminal device is configured or instructed to perform cross-frequency domain resource transmission on the third frequency domain resource. Similarly to the aforementioned third aspect, the method of this fourth aspect can also be executed by a terminal device, in which case the terminal device sends the first and second information and instructs the network device to perform cross-frequency domain resource transmission on at least two second frequency domain resources. It is understood that the above method can be applied to uplink, downlink, terminal device-to-terminal device, network device-to-network device, etc., or it can be understood that transmission can refer to sending or receiving. That is, cross-frequency domain resource transmission can be either sending cross-frequency domain resource transmission or sending cross-frequency domain resources, or receiving cross-frequency domain resource transmission or receiving cross-frequency domain resources.

[0097] In this possible implementation, the network device can directly instruct the terminal device through the FDRA field in the first information to use the third frequency domain resource for cross-frequency domain resource transmission. Thus, the terminal device can directly use the third frequency domain resource for cross-frequency domain resource transmission, which means that the efficiency of cross-frequency domain resource transmission can be improved by using the agreed frequency domain resources.

[0098] Optionally, in one possible implementation of the fourth aspect, the network device described above may also send third information, the third information including a Time Domain Resource Allocation (TDRA) domain, the TDRA domain being used to indicate a first time domain resource for cross-frequency domain resource transmission; cross-frequency domain resource transmission over at least two second frequency domain resources includes: cross-frequency domain resource transmission over at least two second frequency domain resources and the first time domain resource, the third frequency domain resource being the third frequency domain resource on the at least two second frequency domain resources indicated by the FDRA domain.

[0099] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0100] In this possible implementation, the terminal device can determine the TDRA domain through third information or first information, and clarify the first time domain resource used for cross-frequency domain resource transmission. That is, the efficiency of cross-frequency domain resource transmission can be improved by using the agreed first time domain resource, and the terminal device can perform cross-frequency domain resource transmission on the corresponding time domain and frequency domain resources.

[0101] Optionally, in one possible implementation of the fourth aspect, the network device described above may further transmit fourth information, which includes at least one Time Domain Resource Allocation (TDRA) field. The at least one TDRA field is used to indicate the second time domain resource corresponding to the third frequency domain resource on the reference second frequency domain resource among at least two second frequency domain resources. The reference second frequency domain resource is at least one of the following among at least two second frequency domain resources: the second frequency domain resource with the smallest subcarrier spacing (SCS), the second frequency domain resource with the largest SCS, the second frequency domain resource where the signaling carrying the fourth information is located, and the second frequency domain resource with the smallest index among at least two second frequency domain resources. The third time domain resource corresponding to the third frequency domain resource on the second frequency domain resources other than the reference second frequency domain resource is aligned with the second time domain resource. Cross-frequency domain resource transmission on at least two second frequency domain resources includes: cross-frequency domain resource transmission on the third frequency domain resource and the second time domain resource, and the third time-frequency resource determined by the third time domain resource on at least two second frequency domain resources.

[0102] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0103] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0104] In this possible implementation, the network device indirectly indicates the time domain information transmitted across frequency domain resources through the fourth information or the first information, thereby reducing the communication overhead caused by indicating all time domain resources.

[0105] Optionally, in one possible implementation of the fourth aspect, the network device described above may also receive capability information, which is used to indicate at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0106] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). However, the second frequency domain granularity of the third frequency domain resource is lower than the aforementioned first frequency domain granularity.

[0107] For example, the first frequency domain granularity includes CC, BWP, band, etc. The second frequency domain granularity includes PRB, RB, RE, RE set, subcarrier, etc.

[0108] In this possible implementation, the terminal device reports multiple new terminal device capabilities, so that the network device can schedule the terminal device according to the capability information, for example, to perform cross-frequency domain resource transmission within the supported range and obtain throughput gain.

[0109] Optionally, in one possible implementation of the third or fourth aspect, each of the plurality of first frequency domain resources mentioned above includes at least one frequency domain unit, and the frequency domain units on each of the first frequency domain resources are independently indexed, or the frequency domain units on each of the at least two second frequency domain resources are independently indexed, or the frequency domain units on the plurality of first frequency domain resources are consecutively indexed, or the frequency domain units on the at least two second frequency domain resources are consecutively indexed.

[0110] In this possible implementation, the specific indexing method of the frequency domain unit is defined, so that the terminal device and the network device can align the frequency domain units used for transmission based on the resource indication, ensuring the performance of cross-frequency domain transmission and obtaining throughput gain.

[0111] Optionally, in one possible implementation of the third or fourth aspect, the number of bits in the aforementioned frequency domain resource allocation FDRA domain is determined based on the sum of the number of frequency domain units contained in the plurality of first frequency domain resources, or based on the sum of the number of frequency domain units contained in the plurality of first frequency domain resources and the number of frequency domain units contained in the frequency domain interval between the plurality of first frequency domain resources.

[0112] In this possible implementation, by agreeing on how to calculate the number of bits in the FDRA field, the efficiency of blind detection of FDRA information or DCI by the terminal device can be improved.

[0113] Optionally, in one possible implementation of the third or fourth aspect, the number of bits in the FDRA field contained in the first information is determined according to a first value or a second value. The first value is the sum of the number of frequency domain units contained in the fourth frequency domain resource and the number of frequency domain units contained in at least one fifth frequency domain resource. The fourth frequency domain resource is the second frequency domain resource in which the first information is located among at least two second frequency domain resources. The at least one fifth frequency domain resource is a frequency domain resource in the configured plurality of frequency domain resources whose frequency range is higher than that of the fourth frequency domain resource. The second value is the sum of the first value and the third value. The third value is the number of frequency domain units contained in the first frequency domain interval, or the third value is the sum of the number of frequency domain units contained in the first frequency domain interval and the number of frequency domain units contained in the second frequency domain interval. The first frequency domain interval is the frequency domain interval between the fourth frequency domain resource and the fifth frequency domain resource that is adjacent in frequency domain range / index, and the second frequency domain interval is the frequency domain interval between at least two fifth frequency domain resources.

[0114] In this possible implementation, the size of the FDRA domain can be calculated with reference to the second frequency domain resources where the first information is located, thereby reducing signaling overhead and ensuring that the terminal equipment can correctly blindly detect FDRA information or DCI.

[0115] Optionally, in one possible implementation of the third or fourth aspect, the transport block size for the aforementioned cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource units (REs) of the time-frequency resources used for cross-frequency domain resource transmission, and the time-frequency resources used for cross-frequency domain resource transmission are based on a third frequency domain resource including at least two second frequency domain resources and the corresponding time domain resource.

[0116] In this possible implementation, the transport block size can be calculated based on the total available resources on at least two frequency domain resources used for cross-frequency domain resource transmission, thereby increasing the amount of data transmitted.

[0117] Optionally, in one possible implementation of the third or fourth aspect, the time-frequency resources for cross-frequency domain resource transmission include third frequency domain resources on at least two second frequency domain resources and corresponding time domain resources. The mapping method used for cross-frequency domain resource transmission includes any one of the following: frequency domain mapping followed by time domain mapping on the time-frequency resources; frequency domain mapping followed by time domain mapping on the time-frequency resources of each second frequency domain resource and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the time-frequency resources; and time domain mapping followed by frequency domain mapping on the time-frequency resources of each second frequency domain resource and then cross-second frequency domain resource mapping.

[0118] In this possible implementation, since it involves cross-frequency domain resource transmission, several feasible resource mapping methods are given above, which can adapt to different scenario needs and improve the applicability of the solution.

[0119] The fifth aspect of this application provides a communication device, which is a terminal device / network device, or a component (e.g., a processor, chip, or chip system) within a terminal device / network device, or a logic module or software capable of implementing all or part of the functions of a terminal device / network device. Taking a terminal device as an example, the communication device includes a processing unit and a transceiver unit.

[0120] The processing unit is used to determine the first information and the second information. The transceiver unit is used to perform cross-frequency domain resource transmission on at least two second frequency domain resources.

[0121] The first information includes multiple FDRA information, and the second information includes at least one indicator bit. The multiple FDRA information correspond to multiple first frequency domain resources respectively, and the at least one indicator bit is used to indicate that at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0122] Alternatively, the first information is used to indicate first transmission resources on a plurality of first frequency domain resources, and the second information includes at least one indication bit, which is used to indicate that the first transmission resources on at least two of the plurality of first frequency domain resources are used for cross-frequency domain resource transmission. Furthermore, the transceiver unit performs cross-frequency domain resource transmission on the first transmission resources on at least two second frequency domain resources. The first transmission resources may include at least one of the following: time domain resources and frequency domain resources.

[0123] Optionally, in one possible implementation of the fifth aspect, the aforementioned transceiver unit is further configured to send capability information to the network device, the capability information representing at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0124] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). However, the second frequency domain granularity of the frequency domain resources used by the first transmission resource is lower than the aforementioned first frequency domain granularity.

[0125] For example, the first frequency domain granularity includes CC, BWP, band, etc. The second frequency domain granularity includes PRB, RB, RE, RE set, subcarrier, etc.

[0126] Optionally, in one possible implementation of the fifth aspect, the aforementioned processing unit is further configured to determine third information, the third information including at least one time-domain resource allocation (TDRA) information, the at least one TDRA information being used to indicate a first time-domain resource for cross-frequency-domain resource transmission; the transceiver unit is specifically configured to perform cross-frequency-domain resource transmission on a third frequency-domain resource on at least two second frequency-domain resources and on the first time-domain resource, the third frequency-domain resource being the frequency-domain resource on at least two second frequency-domain resources indicated by the FDRA information.

[0127] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0128] Optionally, in one possible implementation of the fifth aspect, the processing unit described above is further configured to determine fourth information, the fourth information including at least one time-domain resource allocation (TDRA) information, the at least one TDRA information being used to indicate the second time-domain resource corresponding to the third frequency-domain resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index on at least two second frequency-domain resources; the third time-domain resource corresponding to the third frequency-domain resource on the second frequency-domain resources other than the reference second frequency-domain resource among at least two second frequency-domain resources is aligned with the second time-domain resource; the transceiver unit is specifically configured to perform cross-frequency-domain resource transmission on the third frequency-domain resource and the second time-domain resource and the third time-frequency resource determined by the third time-domain resource on at least two second frequency-domain resources.

[0129] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0130] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0131] Optionally, in one possible implementation of the fifth aspect, the processing unit described above is further configured to determine sixth information, which includes a plurality of first indication information and a second indication information. The plurality of first indication information is used to indicate the starting position of the time domain resources for cross-frequency domain resource transmission, and the second indication information is used to indicate the number of time domain resources and / or the number of repetitions for cross-frequency domain resource transmission. The plurality of first indication information corresponds one-to-one with the plurality of first frequency domain resources or at least two second frequency domain resources.

[0132] Alternatively, the first information may also include multiple first indication information and one second indication information, wherein the multiple first indication information is used to indicate the starting position of the time domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources, and the second indication information is used to indicate the number of time domain resources contained in the first transmission resources or the number of repetitions.

[0133] Optionally, in one possible implementation of the fifth aspect, the aforementioned processing unit is further configured to determine seventh information, which includes a third indication information, the third indication information being used to indicate the starting position of the time-domain resources for cross-frequency domain resource transmission, the number of time-domain resources, and / or the number of repetitions.

[0134] Alternatively, the first information may also include a third indication information, which indicates the starting position, the number of time-domain resources, and / or the number of repetitions of the time-domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources.

[0135] The sixth aspect of this application provides a communication device, which is a network device / terminal device, or a component (e.g., a processor, chip, or chip system) within a network device / terminal device, or a logic module or software capable of implementing all or part of the functions of a network device / terminal device. Taking a network device as an example, the communication device includes a transceiver unit.

[0136] The transceiver unit is used to send the first information and the second information.

[0137] The processing unit is used to configure or instruct the terminal device to perform cross-frequency domain resource transmission on at least two second frequency domain resources.

[0138] The first information includes multiple FDRA information, and the second information includes at least one indicator bit. The multiple FDRA information correspond to multiple first frequency domain resources respectively, and the at least one indicator bit is used to indicate that at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0139] Alternatively, the first information is used to indicate first transmission resources on multiple first frequency domain resources, and the second information includes at least one indication bit, which is used to indicate that the first transmission resources on at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission. Furthermore, the processing unit can configure or instruct the terminal device to perform cross-frequency domain resource transmission on the first transmission resources on at least two second frequency domain resources. The first transmission resources may include at least one of the following: time domain resources and frequency domain resources.

[0140] Optionally, in one possible implementation of the sixth aspect, the transceiver unit described above is further configured to receive capability information, which indicates at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0141] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). However, the second frequency domain granularity of the frequency domain resources used by the first transmission resource is lower than the aforementioned first frequency domain granularity.

[0142] For example, the first frequency domain granularity includes CC, BWP, band, etc. The second frequency domain granularity includes PRB, RB, RE, RE set, subcarrier, etc.

[0143] Optionally, in one possible implementation of the sixth aspect, the transceiver unit is further configured to transmit third information, the third information including at least one Time Domain Resource Allocation (TDRA) information, the at least one TDRA information being used to indicate a first time domain resource for cross-frequency domain resource transmission; the transceiver unit is specifically configured to perform cross-frequency domain resource transmission on a third frequency domain resource on at least two second frequency domain resources and on the first time domain resource, the third frequency domain resource being the frequency domain resource on the at least two second frequency domain resources indicated by the FDRA information.

[0144] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0145] Optionally, in one possible implementation of the sixth aspect, the transceiver unit is further configured to transmit fourth information, the fourth information including at least one time-domain resource allocation (TDRA) information, the at least one TDRA information being used to indicate the second time-domain resource corresponding to the third frequency-domain resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index on at least two second frequency-domain resources; the third time-domain resource corresponding to the third frequency-domain resource on the second frequency-domain resources other than the reference second frequency-domain resource among at least two second frequency-domain resources is aligned with the second time-domain resource; the transceiver unit is specifically configured to perform cross-frequency-domain resource transmission on the third frequency-domain resource and the second time-domain resource and the third time-frequency resource determined by the third time-domain resource on at least two second frequency-domain resources.

[0146] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0147] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0148] Optionally, in one possible implementation of the sixth aspect, the aforementioned transceiver unit is further configured to transmit sixth information, which includes a plurality of first indication information and a second indication information. The plurality of first indication information is used to indicate the starting position of the time domain resources for cross-frequency domain resource transmission, and the second indication information is used to indicate the number of time domain resources and / or the number of repetitions for cross-frequency domain resource transmission. The plurality of first indication information corresponds one-to-one with the plurality of first frequency domain resources or at least two second frequency domain resources.

[0149] Alternatively, the first information may also include multiple first indication information and one second indication information, wherein the multiple first indication information is used to indicate the starting position of the time domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources, and the second indication information is used to indicate the number of time domain resources contained in the first transmission resources or the number of repetitions.

[0150] Optionally, in one possible implementation of the sixth aspect, the aforementioned transceiver unit is further configured to transmit seventh information, which includes a third indication information, used to indicate the starting position of the time-domain resources for cross-frequency domain resource transmission, the number of time-domain resources, and / or the number of repetitions.

[0151] Alternatively, the first information may also include a third indication information, which indicates the starting position, the number of time-domain resources, and / or the number of repetitions of the time-domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources.

[0152] Optionally, in one possible implementation of the fifth or sixth aspect, the aforementioned plurality of FDRA information is carried in a downlink control information, wherein the number of at least one indicator bit is 1, and the at least one indicator bit is specifically used to indicate that a plurality of first frequency domain resources are used for cross-frequency domain resource transmission.

[0153] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information are carried in a downlink control information, and the number of at least one indicator bit is 1. The at least one indicator bit is specifically used to indicate that the first transmission resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0154] Optionally, in one possible implementation of the fifth or sixth aspect, the aforementioned plurality of FDRA information is carried in a downlink control information, at least one indication bit includes a plurality of second indication bits, the plurality of second indication bits correspond one-to-one with a plurality of first frequency domain resources, and the plurality of second indication bits are specifically used to indicate at least two of the plurality of first frequency domain resources for cross-frequency domain resource transmission.

[0155] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information is carried in a downlink control information. At least one indication bit includes multiple second indication bits, which correspond one-to-one with the multiple first frequency domain resources. The multiple second indication bits are specifically used to indicate that the first transmission resources on at least two of the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0156] Alternatively, in one possible implementation of the fifth or sixth aspect, the values ​​of the second indicator bits corresponding to at least two of the aforementioned second frequency domain resources are the same.

[0157] Optionally, in one possible implementation of the fifth or sixth aspect, the aforementioned plurality of FDRA information are respectively carried in a plurality of downlink control information, at least one indicator bit includes a plurality of third indicator bits, the plurality of third indicator bits correspond one-to-one with a plurality of first frequency domain resources, the plurality of third indicator bits correspond one-to-one with a plurality of FDRA information, and the values ​​of the second indicator bits corresponding to at least two second frequency domain resources are the same.

[0158] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information are respectively carried in multiple downlink control information. At least one indication bit includes multiple third indication bits, which correspond one-to-one with multiple first frequency domain resources and one-to-one with multiple FDRA information. The values ​​of the second indication bits corresponding to at least two second frequency domain resources are the same.

[0159] Optionally, in one possible implementation of the fifth or sixth aspect, the transport block size of the aforementioned cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource units (REs) of the time-frequency resources used for cross-frequency domain resource transmission, and the time-frequency resources used for cross-frequency domain resource transmission are based on a third frequency domain resource including at least two second frequency domain resources and the corresponding time domain resource.

[0160] Alternatively, the transport block size for cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource elements (REs) contained in the first transport resources on at least two second frequency domain resources.

[0161] Optionally, in one possible implementation of the fifth or sixth aspect, the time-frequency resources for cross-frequency domain resource transmission include third frequency domain resources on at least two second frequency domain resources and corresponding time domain resources. The mapping method used for cross-frequency domain resource transmission includes any one of the following: frequency domain mapping followed by time domain mapping on the time-frequency resources; frequency domain mapping followed by time domain mapping on the time-frequency resources of each of the at least two second frequency domain resources, and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the time-frequency resources; and time domain mapping followed by frequency domain mapping on the time-frequency resources of each of the at least two second frequency domain resources, and then cross-second frequency domain resource mapping.

[0162] Alternatively, the mapping method used for cross-frequency domain resource transmission includes any of the following: frequency domain mapping followed by time domain mapping on the first transmission resource; frequency domain mapping followed by time domain mapping on the first transmission resource of each of at least two second frequency domain resources, and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the first transmission resource; and time domain mapping followed by frequency domain mapping on the first transmission resource of each of at least two second frequency domain resources, and then cross-second frequency domain resource mapping.

[0163] Optionally, in one possible implementation of the fifth or sixth aspect, the transport block size for the aforementioned cross-frequency domain resource transmission is determined based on a reference value, which is at least one of the following:

[0164] The preset value (e.g., a configured, pre-configured, or predefined value), the sum of the number of REs for time-frequency resources used for cross-frequency-domain resource transmission on each of at least two second frequency-domain resources, the average number of resource element REs for time-frequency resources used for cross-frequency-domain resource transmission on each of at least two second frequency-domain resources, the time-frequency resources including third frequency-domain resources and corresponding time-domain resources on at least two second frequency-domain resources, and the number of resource element REs for time-frequency resources used for cross-frequency-domain resource transmission on reference second frequency-domain resources in at least two second frequency-domain resources.

[0165] Alternatively, the transport block size for cross-frequency domain resource transmission is determined based on a reference value, which is at least one of the following: a preset value (e.g., a configured, pre-configured, or predefined value), the sum of the number of REs contained in the first transport resource on each of at least two second frequency domain resources, the average number of REs contained in the first transport resource on each of at least two second frequency domain resources, and the number of REs contained in the first transport resource of a reference second frequency domain resource in at least two second frequency domain resources.

[0166] Alternatively, in one possible implementation of the fifth or sixth aspect, the redundant version RV of the cross-frequency domain resource transmission described above is determined according to the RV pattern for each of the at least two second frequency domain resources.

[0167] Optionally, in one possible implementation of the fifth or sixth aspect, the aforementioned plurality of FDRA information is used to indicate the starting position of the frequency domain resources of the third frequency domain resources on a plurality of first frequency domain resources or on at least two second frequency domain resources, wherein the number of frequency domain resources of the third frequency domain resources on each of the at least two second frequency domain resources is the same.

[0168] Alternatively, the first information may include multiple frequency domain resource allocation (FDRA) information, which are used to indicate the starting position of the frequency domain resources contained in the first transmission resources on multiple first frequency domain resources or on at least two second frequency domain resources, wherein the number of frequency domain resources contained in the first transmission resources on each of the at least two second frequency domain resources is the same.

[0169] Optionally, in one possible implementation of the fifth or sixth aspect, the number of bits and / or quantity of FDRA fields included in the first information described above is determined according to one or more of the following: a third value, a fourth value, a sixth value, and a seventh value.

[0170] The third value is the sum of the number of frequency domain units contained in the fourth frequency domain resource and the number of frequency domain units contained in at least one fifth frequency domain resource. The fourth frequency domain resource is the second frequency domain resource in which the first information is located among at least two second frequency domain resources. The at least one fifth frequency domain resource is a frequency domain resource in the configured plurality of frequency domain resources whose frequency range is higher than that of the fourth frequency domain resource.

[0171] The fourth value is the sum of the third and fifth values. The fifth value is the number of frequency domain units contained in the first frequency domain interval, or the fifth value is the sum of the number of frequency domain units contained in the first frequency domain interval and the number of frequency domain units contained in the second frequency domain interval. The first frequency domain interval is the frequency domain interval between the fourth frequency domain resource and the fifth frequency domain resource that is adjacent to the frequency domain range / index. The second frequency domain interval is the frequency domain interval between at least two fifth frequency domain resources.

[0172] The sixth value is the fourth frequency domain resource, plus the sum of the number of frequency domain resources with a frequency range higher than the fourth frequency domain resource among the configured frequency domain resources;

[0173] The seventh value is the number of frequency domain units contained in each frequency domain resource, among the number of frequency domain resources in the fourth frequency domain resource and the number of frequency domain resources in the configured multiple frequency domain resources with frequency ranges higher than the fourth frequency domain resource.

[0174] The seventh aspect of this application provides a communication device, which is a terminal device / network device, or a component (e.g., a processor, chip, or chip system) of a terminal device / network device, or a logic module or software capable of implementing all or part of the functions of a terminal device / network device. Taking a terminal device as an example, the communication device includes a transceiver unit.

[0175] The transceiver unit is used to receive first information, the first information including a frequency domain resource allocation (FDRA) field, the FDRA field being used to indicate a third frequency domain resource, the third frequency domain resource including frequency domain resources on at least two of the second frequency domain resources among a plurality of first frequency domain resources, the third frequency domain resource being used for cross-frequency domain resource transmission.

[0176] The transceiver unit is also used for cross-frequency domain resource transmission over third-frequency domain resources.

[0177] Optionally, in one possible implementation of the seventh aspect, the aforementioned processing unit is further configured to determine third information, the third information including a Time Domain Resource Allocation (TDRA) domain, the TDRA domain being used to indicate a first time domain resource for cross-frequency domain resource transmission; the transceiver unit is specifically configured to perform cross-frequency domain resource transmission on a third frequency domain resource on at least two second frequency domain resources and the first time domain resource, the third frequency domain resource being a third frequency domain resource on at least two second frequency domain resources indicated by the FDRA domain.

[0178] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0179] Optionally, in one possible implementation of the seventh aspect, the processing unit described above is further configured to determine fourth information, the fourth information including at least one time-domain resource allocation (TDRA) field, the at least one TDRA field being used to indicate the second time-domain resource corresponding to the third frequency-domain resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index on at least two second frequency-domain resources; the third time-domain resource corresponding to the third frequency-domain resource on the second frequency-domain resources other than the reference second frequency-domain resource among at least two second frequency-domain resources is aligned with the second time-domain resource; the transceiver unit is specifically configured to perform cross-frequency-domain resource transmission on the third frequency-domain resource on the at least two second frequency-domain resources and the second time-domain resource, and the third time-frequency resource determined by the third time-domain resource.

[0180] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0181] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0182] Optionally, in one possible implementation of the seventh aspect, the aforementioned transceiver unit is further configured to transmit capability information, which indicates at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0183] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). However, the second frequency domain granularity of the third frequency domain resource is lower than the aforementioned first frequency domain granularity.

[0184] For example, the first frequency domain granularity includes CC, BWP, band, etc. The second frequency domain granularity includes PRB, RB, RE, RE set, subcarrier, etc.

[0185] The eighth aspect of this application provides a communication device, which is a network device / terminal device, or a component (e.g., a processor, chip, or chip system) within a network device / terminal device, or a logic module or software capable of implementing all or part of the functions of a network device / terminal device. Taking a network device as an example, the communication device includes a transceiver unit.

[0186] The transceiver unit is used to send first information, which includes a frequency domain resource allocation (FDRA) field. The FDRA field is used to indicate a third frequency domain resource. The third frequency domain resource includes frequency domain resources on at least two second frequency domain resources among a plurality of first frequency domain resources. The third frequency domain resource is used for cross-frequency domain resource transmission.

[0187] The processing unit is used to configure or instruct the terminal device to perform cross-frequency domain resource transmission on third-frequency domain resources.

[0188] Optionally, in one possible implementation of the eighth aspect, the transceiver unit is further configured to transmit third information, the third information including a Time Domain Resource Allocation (TDRA) field, the TDRA field being used to indicate a first time domain resource for cross-frequency domain resource transmission; the transceiver unit is specifically configured to perform cross-frequency domain resource transmission on a third frequency domain resource on at least two second frequency domain resources and on the first time domain resource, the third frequency domain resource being a third frequency domain resource on at least two second frequency domain resources indicated by the FDRA field.

[0189] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0190] Optionally, in one possible implementation of the eighth aspect, the transceiver unit is further configured to transmit fourth information, the fourth information including at least one Time Domain Resource Allocation (TDRA) field, the at least one TDRA field being used to indicate the second time domain resource corresponding to the third frequency domain resource on the reference second frequency domain resource among at least two second frequency domain resources; the reference second frequency domain resource is at least one of the following among at least two second frequency domain resources: the second frequency domain resource with the smallest subcarrier spacing (SCS), the second frequency domain resource with the largest SCS, the second frequency domain resource where the signaling carrying the fourth information is located, and the second frequency domain resource with the smallest index on at least two second frequency domain resources; the third time domain resource corresponding to the third frequency domain resource on the second frequency domain resources other than the reference second frequency domain resource among at least two second frequency domain resources is aligned with the second time domain resource; the transceiver unit is specifically configured to perform cross-frequency domain resource transmission on the third frequency domain resource and the second time domain resource and the third time-frequency resource determined by the third time-frequency resource on at least two second frequency domain resources.

[0191] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0192] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0193] Optionally, in one possible implementation of the eighth aspect, the transceiver unit described above is further configured to receive capability information, which indicates at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0194] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). However, the second frequency domain granularity of the third frequency domain resource is lower than the aforementioned first frequency domain granularity.

[0195] For example, the first frequency domain granularity includes CC, BWP, band, etc. The second frequency domain granularity includes PRB, RB, RE, RE set, subcarrier, etc.

[0196] Optionally, in one possible implementation of the seventh or eighth aspect, each of the plurality of first frequency domain resources mentioned above includes at least one frequency domain unit, and the frequency domain units on each of the first frequency domain resources are independently indexed, or the frequency domain units on each of the at least two second frequency domain resources are independently indexed, or the frequency domain units on the plurality of first frequency domain resources are consecutively indexed, or the frequency domain units on the at least two second frequency domain resources are consecutively indexed.

[0197] Optionally, in one possible implementation of the seventh or eighth aspect, the number of bits in the aforementioned frequency domain resource allocation FDRA domain is determined based on the sum of the number of frequency domain units contained in the plurality of first frequency domain resources, or based on the sum of the number of frequency domain units contained in the plurality of first frequency domain resources and the number of frequency domain units contained in the frequency domain interval between the plurality of first frequency domain resources.

[0198] Optionally, in one possible implementation of the seventh or eighth aspect, the number of bits in the FDRA field contained in the first information is determined according to a first value or a second value. The first value is the sum of the number of frequency domain units contained in the fourth frequency domain resource and the number of frequency domain units contained in at least one fifth frequency domain resource. The fourth frequency domain resource is the second frequency domain resource in which the first information is located among at least two second frequency domain resources. The at least one fifth frequency domain resource is a frequency domain resource in the configured plurality of frequency domain resources whose frequency range is higher than that of the fourth frequency domain resource. The second value is the sum of the first value and the third value. The third value is the number of frequency domain units contained in the first frequency domain interval, or the third value is the sum of the number of frequency domain units contained in the first frequency domain interval and the number of frequency domain units contained in the second frequency domain interval. The first frequency domain interval is the frequency domain interval between the fourth frequency domain resource and the fifth frequency domain resource that is adjacent in frequency domain range / index, and the second frequency domain interval is the frequency domain interval between at least two fifth frequency domain resources.

[0199] Optionally, in one possible implementation of the seventh or eighth aspect, the transport block size of the aforementioned cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource units (REs) of the time-frequency resources used for cross-frequency domain resource transmission, and the time-frequency resources used for cross-frequency domain resource transmission are based on a third frequency domain resource including at least two second frequency domain resources and the corresponding time domain resource.

[0200] Optionally, in one possible implementation of the seventh or eighth aspect, the time-frequency resources for cross-frequency domain resource transmission include third frequency domain resources on at least two second frequency domain resources and corresponding time domain resources, and the mapping method adopted for cross-frequency domain resource transmission includes any one of the following: frequency domain mapping followed by time domain mapping on the time-frequency resources; frequency domain mapping followed by time domain mapping on the time-frequency resources of each second frequency domain resource and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the time-frequency resources; and time domain mapping followed by frequency domain mapping on the time-frequency resources of each second frequency domain resource and then cross-second frequency domain resource mapping.

[0201] A ninth aspect of this application provides a communication device including at least one processor coupled to a memory; the memory is used to store a program or instructions; the at least one processor is used to execute the program or instructions to enable the device to implement any possible implementation of the first or third aspect described above.

[0202] The tenth aspect of this application provides a communication device including at least one processor coupled to a memory; the memory is used to store a program or instructions; the at least one processor is used to execute the program or instructions to enable the device to implement any possible implementation of the second or fourth aspect described above.

[0203] The eleventh aspect of this application provides a communication device, including at least one logic circuit and an input / output interface; the logic circuit is used to perform the method described in any of the possible implementations of the first or third aspect described above.

[0204] The twelfth aspect of this application provides a communication device including at least one logic circuit and an input / output interface; the logic circuit is used to perform a method as described in any of the possible implementations of the second or fourth aspect above.

[0205] The thirteenth aspect of this application provides a communication system, which includes a terminal device of any possible implementation of the ninth aspect and a network device of any possible implementation of the tenth aspect, or includes a terminal device of any possible implementation of the eleventh aspect and a network device of any possible implementation of the twelfth aspect.

[0206] The fourteenth aspect of this application provides a computer-readable storage medium for storing one or more computer-executable instructions, which, when executed by a processor, perform the method as described in any possible implementation of any of the first to fourth aspects described above.

[0207] The fifteenth aspect of this application provides a computer program product (or computer program) that, when executed by a processor, performs the method described in any possible implementation of any of the first to fourth aspects described above.

[0208] The sixteenth aspect of this application provides a chip system including at least one processor for supporting a communication device in implementing the method described in any possible implementation of any of the first to fourth aspects.

[0209] In one possible design, the chip system may further include a memory for storing program instructions and data necessary for the communication device. The chip system may be composed of chips or may include chips and other discrete devices. Optionally, the chip system may also include interface circuitry that provides program instructions and / or data to at least one processor.

[0210] The technical effects of any of the design methods in aspects five through sixteen can be found in the technical effects of the different design methods in aspects one through four above, and will not be repeated here. Attached Figure Description

[0211] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0212] Figure 1A This is a schematic diagram of the communication system involved in this application;

[0213] Figure 1B This is another schematic diagram of the communication system involved in this application;

[0214] Figure 1C This is another schematic diagram of the communication system involved in this application;

[0215] Figure 2 This is a flowchart illustrating the communication method involved in this application;

[0216] Figure 3A This is an example diagram illustrating the capabilities involved in this application;

[0217] Figure 3B This is another example diagram illustrating the capabilities information involved in this application;

[0218] Figure 3C This is another example diagram illustrating the capabilities information involved in this application;

[0219] Figure 3D This is another example diagram illustrating the capabilities information involved in this application;

[0220] Figure 3E This is an example diagram of cross-CC transmission involved in this application;

[0221] Figure 4A This is another example diagram of cross-CC transmission involved in this application;

[0222] Figure 4B This is another example diagram of cross-CC transmission involved in this application;

[0223] Figure 4C This is another example diagram of cross-CC transmission involved in this application;

[0224] Figure 4D This is another example diagram of cross-CC transmission involved in this application;

[0225] Figure 5 This is an example diagram illustrating the relationship between the various frequency domain resources involved in this application;

[0226] Figure 6A This is a structural example diagram of the DCI involved in this application;

[0227] Figure 6B This is another example diagram of a cross-DCI structure involved in this application;

[0228] Figure 7A Here are example diagrams illustrating the structures of the multiple DCIs involved in this application;

[0229] Figure 7B This is another example diagram of cross-CC transmission involved in this application;

[0230] Figure 8A Example diagrams for at least two CCs involved in this application;

[0231] Figure 8B Another example diagram for at least two CCs involved in this application;

[0232] Figure 9A Example diagrams of reference CCs involved in this application;

[0233] Figure 9B This is another example drawing of the reference CC to which this application relates;

[0234] Figure 10 This is another example drawing of the reference CC to which this application relates;

[0235] Figures 11 to 13 Here are some example diagrams illustrating the resource mapping methods involved in this application;

[0236] Figure 14 Example diagram showing a redundant version of the transmission involved in this application;

[0237] Figure 15 Another example diagram illustrating the redundant version of the transmission involved in this application;

[0238] Figure 16 Another example diagram illustrating the redundant version of the transmission involved in this application;

[0239] Figure 17 Another example diagram illustrating the redundant version of the transmission involved in this application;

[0240] Figures 18 to 22 Several schematic diagrams of the communication device provided in this application. Detailed Implementation

[0241] To facilitate understanding of the technical solutions of the embodiments of this application, a brief introduction of the relevant terms in this application is given below.

[0242] First, some terms used in the embodiments of this application will be explained to facilitate understanding by those skilled in the art.

[0243] 1. Terminal equipment

[0244] The terminal device can be a wireless terminal device capable of receiving network device scheduling and instruction information. The wireless terminal device can be a device that provides voice and / or data connectivity to the user, or a handheld device with wireless connectivity, or other processing device connected to a wireless modem.

[0245] Terminal devices can communicate with one or more core networks or the Internet via a radio access network (RAN). Terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones), computers, and data cards. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets, and computers with wireless transceiver capabilities. Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), etc. Terminal equipment can also be wearable devices and next-generation communication systems, such as terminal equipment in 5G communication networks and future communication networks, or terminal equipment in future evolved public land mobile networks (PLMNs).

[0246] 2. Network equipment

[0247] Network devices can be devices within a wireless network. For example, a network device can be a radio access network (RAN) node (or device) that connects terminal devices to the wireless network; it can also be called a base station. Currently, some examples of RAN devices include: next-generation Node B (gNodeB), transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home-evolved Node B, or home Node B (HNB)), base band unit (BBU), or wireless fidelity (Wi-Fi) access point (AP) in a network architecture. Additionally, in a network structure, network devices can include centralized unit (CU) nodes, distributed unit (DU) nodes, or RAN devices that include both CU and DU nodes.

[0248] Specifically, network devices can send configuration information to terminal devices (e.g., carried in scheduling messages and / or indication messages). The terminal devices then configure their networks based on this information, aligning the network configurations of the network devices and terminal devices. Alternatively, network configurations can be pre-set in both the network devices and the terminal devices to achieve alignment. In essence, "alignment" means that when there are interactive messages between the network devices and terminal devices, their understanding of the carrier frequency for sending and receiving interactive messages, the determination of the interactive message type, the meaning of the fields carried in the interactive messages, or other configurations of the interactive messages is consistent.

[0249] Furthermore, in other possible cases, the network device can be any other device that provides wireless communication functionality to the terminal device. The embodiments of this application do not limit the specific technology or device form used in the network device. For ease of description, the embodiments of this application are not limited.

[0250] Network equipment may also include core network equipment, such as access and mobility management function (AMF), user plane function (UPF), or session management function (SMF).

[0251] In this application embodiment, the device for implementing the function of the network device can be the network device itself, or it can be a device capable of supporting the network device in implementing that function, such as a chip system, which can be installed in the network device. In the technical solutions provided in this application embodiment, the example of a network device being used to implement the function of the network device is used to describe the technical solutions provided in this application embodiment.

[0252] 3. Configuration and Pre-configuration

[0253] This application uses both configuration and pre-configuration. Configuration refers to the network device / server sending configuration information or parameter values ​​to the terminal device via messages or signaling, so that the terminal device can determine communication parameters or resources for transmission based on these values ​​or information. Pre-configuration is similar to configuration; it can be parameter information or values ​​pre-negotiated between the network device / server and the terminal device, parameter information or values ​​specified by standard protocols for use by the base station / network device or terminal device, or parameter information or values ​​pre-stored in the base station / server or terminal device. This application does not limit this.

[0254] Furthermore, these values ​​and parameters can be changed or updated.

[0255] For example, configuration / pre-configuration can also refer to one or more of the following: predefined, semi-static configuration of radio resource control (RRC) signaling, or dynamic indication of sidelink control information (SCI), downlink control information (DCI), or MAC control element (MAC CE).

[0256] 4. Introduction to carrier aggregation (CA) and related topics.

[0257] CA (Carrier Aggregator) is a technology that aggregates multiple carrier units together to support greater transmission bandwidth, meeting the demands for increased peak data rates per user and improved system capacity. Each carrier unit, also known as a component carrier (CC), can be a continuous or discontinuous spectrum. For example, in the FR1 band, the bandwidth of a single CC for a terminal device is 100 MHz.

[0258] To reduce power consumption in terminal devices, the concept of a bandwidth part (BWP) is introduced into communication systems. The BWP can be flexibly configured and managed by switching between different aspects of terminal device performance, cost, and flexibility, making the communication system highly flexible in bandwidth configuration.

[0259] Optionally, a band may contain one or more CCs, and each CC may contain one or more BWPs.

[0260] Furthermore, CA is divided into two types: inter-band CA and intra-band CA. Inter-band CA can be understood as aggregated CCs belonging to different bands. Intra-band CA can be understood as aggregated CCs belonging to the same band. Specifically, intra-band CA is further divided into continuous and discontinuous types. Continuous means that the aggregated CCs are continuous in the frequency domain, while discontinuous means that the aggregated CCs are discontinuous in the frequency domain.

[0261] 5. The terms "system" and "network" in the embodiments of this application can be used interchangeably. "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent the following situations: A exists alone, B exists alone, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B and / or C" can represent: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, A and C exist simultaneously, B and C exist simultaneously, and A, B and C exist simultaneously. And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, sequence, priority or importance of multiple objects.

[0262] 6. In the embodiments of this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission via the air interface by other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY via the air interface by other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface; furthermore, "send" can also be understood as the baseband part inside the device outputting information to the radio frequency part, and "receive" can also be understood as the radio frequency part inside the device receiving the information output by the baseband part.

[0263] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.

[0264] It is understandable that information may undergo necessary processing, such as encoding and modulation, between the source and destination, but the destination can understand the valid information from the source. Similar statements in this application can be interpreted in a similar way and will not be elaborated further.

[0265] In the embodiments of this application, transmission includes sending and / or receiving. That is, transmission can be sending, receiving, or a combination of sending and receiving; no specific limitation is made here.

[0266] Furthermore, "receiving" can also be understood as detection, listening, etc., without being limited here. For example, "receiving DCI" usually refers to "listening to DCI".

[0267] 7. In this application, "used for instruction" can include both direct instruction and indirect instruction. When describing instruction information as being used to indicate A, it can be understood that the instruction information carries A, directly indicates A, or indirectly indicates A. Indirect instruction can be understood as A being derived or indirectly determined based on the instruction information.

[0268] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementation, there are many ways to instruct the information to be instructed. For example, it can be implemented through direct instruction, such as through the information to be instructed itself or its index. It can also be implemented indirectly by instructing other information, where there is a relationship between the other information and the information to be instructed. Alternatively, only a part of the information to be instructed can be indicated, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent.

[0269] The information to be indicated can be sent as a whole or divided into multiple sub-information messages, and the sending period and / or timing of these sub-information messages can be the same or different. This application does not limit the specific sending method. The sending period and / or timing of these sub-information messages can be predefined, for example, according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device. This configuration information can include, for example, but not limited to, one or a combination of at least two of RRC signaling, medium access control (MAC) layer signaling, and physical layer signaling. MAC layer signaling includes, for example, MAC CE; physical layer signaling includes, for example, DCI.

[0270] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. In the various embodiments of this application, and in the various implementation methods / methods / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various implementation methods / methods / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various implementation methods / methods / implementations within each embodiment can be combined according to their inherent logical relationships to form new embodiments, implementation methods, methods, or implementation approaches. The following embodiments of this application do not constitute a limitation on the scope of protection of this application.

[0271] To facilitate understanding of the methods provided in the embodiments of this application, the system architecture of the methods provided in the embodiments of this application will be described below. It is understood that the system architecture described in the embodiments of this application is for the purpose of more clearly illustrating the solutions of the embodiments of this application and does not constitute a limitation on the solutions provided in the embodiments of this application.

[0272] Please see Figure 1A This is a schematic diagram of the architecture of the communication system 1000 used in an embodiment of this application. Figure 1A As shown, the communication system includes a radio access network (RAN) 100 and a core network 200. Optionally, the communication system 1000 may also include an Internet 300. The RAN 100 includes at least one RAN node (e.g., ...). Figure 1A 110a and 110b, collectively referred to as 110, may also include at least one terminal device (such as...). Figure 1A RAN100, denoted as RAN100, comprises RAN nodes 120a-120j, collectively referred to as RAN120. RAN100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1A (Not shown in the image). Terminal device 120 is wirelessly connected to RAN node 110, and RAN node 110 is wirelessly or wired connected to core network 200. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be independent physical devices, or they can be the same physical device integrating the logical functions of core network equipment and RAN nodes. Terminal devices and RAN nodes can be interconnected via wired or wireless means.

[0273] RAN100 can be an evolved universal terrestrial radio access (E-UTRA) system, an NR system, or a future radio access system as defined in 3GPP. RAN100 can also include two or more of the above-mentioned different radio access systems. RAN100 can also be an open RAN (O-RAN).

[0274] RAN nodes, also known as radio access network equipment, RAN entities, or access nodes, are used to help terminal devices access communication systems wirelessly. In one application scenario, an RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a 6G mobile communication system, or a base station in a future mobile communication system. RAN nodes can also be macro base stations (such as...) Figure 1A 110a in the text), can also be a micro base station or an indoor station (such as... Figure 1A 110b in the middle can also be a relay node or a donor node.

[0275] In another application scenario, multiple RAN nodes can collaborate to help terminal devices achieve wireless access, with different RAN nodes implementing different functions of the base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP). The DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions. For specific descriptions of these protocol layers, refer to the relevant 3GPP technical specifications. The RU can be used to implement radio frequency signal transmission and reception. The CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as within a baseband unit (BBU). RUs can be included in radio frequency equipment, such as remote radio units (RRUs) or active antenna units (AAUs). CUs can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0276] In different systems, RAN nodes may have different names. For example, in an O-RAN system, a CU can be called an open CU (O-CU), a DU can be called an open DU (O-DU), and an RU can be called an open RU (O-RU). The RAN nodes in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. For example, a RAN node can be a server loaded with the corresponding software modules. The embodiments of this application do not limit the specific technology or device form used in the RAN nodes.

[0277] In addition, RAN nodes can also be called network devices, which are devices deployed in a radio access network to provide wireless communication functions for terminal devices. Network devices can include various forms of macro base stations, micro base stations (also known as small stations), relay stations, access points, etc. The name of the network device may differ in systems employing different radio access technologies, such as eNB or eNodeB (Evolutionary NodeB) in Long Term Evolution (LTE). Network devices can also be radio controllers in Cloud Radio Access Network (CRAN) scenarios. Network devices can also be base station equipment in future 5G networks or network devices in future evolved PLMN networks. Network devices can also be wearable devices or vehicle-mounted devices. Network devices can also be Transmission and Reception Points (TRPs). Furthermore, in a network architecture, network devices can include centralized unit (CU) nodes, distributed unit (DU) nodes, or RAN devices including both CU and DU nodes. For ease of description, a base station will be used as an example of a RAN node in the following description.

[0278] A terminal device is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station. Terminal devices can also be referred to as user equipment (UE), mobile stations, mobile terminal devices, etc. They can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), the Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, and smart cities. Terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technologies or device forms used in the terminal devices.

[0279] Base stations and terminal equipment can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminal equipment.

[0280] The roles of base stations and terminal devices can be relative, for example, Figure 1A The helicopter or drone 120i can be configured as a mobile base station. For terminal devices 120j that access the wireless access network 100 via 120i, terminal device 120i is a base station; however, for base station 110a, 120i is a terminal device, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol; in this case, 120i is also a base station relative to 110a. Therefore, both base stations and terminal devices can be collectively referred to as communication equipment. Figure 1A The 110a and 110b in the text can be referred to as communication devices with base station functions. Figure 1A The 120a-120j in the text can be referred to as communication equipment with terminal device functions.

[0281] Communication between base stations and terminal devices, between base stations, and between terminal devices can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0282] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal device can be executed by modules (such as chips or modems) within the terminal device, or by a device that includes terminal device functions.

[0283] As can be understood, RAN100, as previously described, includes at least one RAN node (e.g., Figure 1A 110a and 110b, collectively referred to as 110, may also include at least one terminal device (such as...). Figure 1A 120a-120j in the series are collectively referred to as 120).

[0284] In one possible implementation method Figure 1A The communication system shown can also be as follows Figure 1B As shown, it includes one RAN node 110 and multiple terminal devices (such as...). Figure 1B (Referring to 120A and 120B in the original text). In this case, a single RAN node can transmit data or control signaling to one or more terminal devices.

[0285] In another possible way of implementation Figure 1A The communication system shown can also be as follows Figure 1C As shown, this includes multiple RAN nodes (such as...) Figure 1C 110 (110A, 110B, and 110C) 110 and a terminal device 120. In this case, multiple RAN nodes can also transmit data or control signaling to a single terminal device simultaneously.

[0286] It should be noted that the methods and apparatus provided in this application can be applied to at least one of the following scenarios: cellular communication and direct terminal communication, cellular communication and vehicle networking, direct terminal communication, wireless Fidelity (WiFi) communication, etc., and no specific limitation is made here.

[0287] Currently, uplink CA transmission is often performed concurrently across multiple control centers (CCs). Each CC transmits one PUSCH, and each PUSCH transmits one TB (terabyte), with TB size calculation, coding, modulation, and mapping performed separately. However, due to varying wireless spectrum planning in different regions, there are situations where available continuous uplink bandwidth is limited. Furthermore, the existence of multiple fragmented CCs significantly restricts the throughput of a single terminal for concurrent transmission.

[0288] To address the aforementioned technical problems, embodiments of this application provide a communication method and related apparatus. A terminal device can determine the frequency domain resources used for transmission on multiple first frequency domain resources based on multiple frequency domain resource allocation FDRA information in the first information, and determine at least two second frequency domain resources among the multiple first frequency domain resources for cross-frequency domain resource transmission through at least one indicator bit in the second information. This allows cross-frequency domain resource transmission to be performed on the frequency domain resources used for transmission among at least two second frequency domain resources. This not only integrates multiple fragmented frequency domain ranges to facilitate frequency domain scheduling by network devices, but also improves the throughput of the terminal device.

[0289] Alternatively, this application can be understood as the method that enables cross-CC transmission between terminal devices and network devices. Subsequent embodiments are also based on this idea to describe how to perform cross-CC transmission and the related technical features such as the configuration or instructions required to achieve cross-CC transmission.

[0290] Please see Figure 2 This application provides a flowchart illustrating a communication method, which includes steps 201 to 203. Steps 201 to 203 can be executed by a communication device. "Communication device" can refer to the communication device itself (e.g., a terminal device and / or network device), a component within the communication device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the communication device. The communication device can be one of the aforementioned... Figures 1A to 1C The terminal device or network device in the communication system shown. The following description uses the example of execution by a communication device. The processing performed by a single execution entity in steps 201 to 203 can also be divided into execution by multiple execution entities, which can be logically and / or physically separated. For example, if the communication device is a network device, the processing performed by the communication device can be divided into execution by at least one of CU, DU, and RU.

[0291] Step 201: The terminal device sends capability information to the network device. This step is optional.

[0292] Optionally, the terminal device sends capability information to the network device. Correspondingly, the network device receives the capability information sent by the terminal device. This capability information describes whether the terminal device supports cross-frequency domain resource transmission and / or related parameter information such as whether the terminal device supports cross-frequency domain resource transmission.

[0293] Furthermore, the capability information is used to represent at least one of the following:

[0294] 1. Does the terminal device support cross-frequency domain resource transmission? For example, does the terminal device support cross-frequency domain resource transmission among multiple frequency domain resources within the same band, and / or, does the terminal device support cross-frequency domain resource transmission among multiple frequency domain resources between bands, etc.

[0295] 2. The maximum number of frequency domain resources that the terminal device supports for cross-frequency domain resource transmission. Alternatively, this can be understood as the maximum number of frequency domain resources that the terminal device supports for concurrent transmission, or the maximum number of at least two second-frequency domain resources that the terminal device supports for cross-frequency domain resource transmission. For example, the number of CCs that the terminal device supports for cross-frequency domain resource transmission.

[0296] 3. The maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission. Alternatively, this can be understood as the upper limit of the sum of the bandwidth of frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, or the upper limit of the sum of the bandwidth of at least two second frequency domain resources supported by the terminal device for cross-frequency domain resource transmission. For example, the upper limit of the sum of the bandwidth of multiple CCs supported by the terminal device for cross-frequency domain resource transmission.

[0297] For example, the maximum sum of bandwidth supported by the terminal device for cross-CC transmissions is as follows: Figure 3A As shown.

[0298] 4. The maximum bandwidth of each frequency domain resource among multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission. Alternatively, this can be understood as the maximum bandwidth of any single frequency domain resource among multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission. For example, the maximum bandwidth of any single CC among multiple CCs supported by the terminal device for cross-frequency domain resource transmission.

[0299] For example, the maximum bandwidth of any one of the CCs supported by the terminal device for cross-CC transmission is as follows: Figure 3B As shown.

[0300] 5. The maximum frequency spacing between adjacent frequency domain resources among multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission. Adjacent frequency domain resources refer to those that are adjacent indices, frequency positions, or frequency ranges among multiple frequency domain resources used for cross-carrier transmission. It should be noted that adjacent frequency positions or frequency ranges do not imply frequency domain continuation. For example, the maximum frequency spacing between adjacent CCs among multiple CCs supported by the terminal device for cross-frequency domain resource transmission.

[0301] For example, the maximum frequency spacing between adjacent CCs supported by the terminal device for cross-CC transmission is as follows: Figure 3C As shown.

[0302] 6. The sum of the total bandwidth of multiple frequency domain resources transmitted across frequency domain resources by the terminal device and the frequency spacing between adjacent frequency domain resources among the multiple frequency domain resources. For example, the sum of the total bandwidth of multiple CCs transmitted across frequency domain resources by the terminal device and the frequency spacing between adjacent CCs among the multiple CCs.

[0303] For example, the sum of the total bandwidth of multiple CCs supported by the terminal device for cross-CC transmission and the frequency spacing between adjacent CCs is as follows: Figure 3D As shown.

[0304] The frequency domain resources mentioned above can refer to a continuous segment of frequency domain resources. For example, frequency domain resources can refer to at least one of the following: resource element (RE), resource block (RB), interlace, subchannel, RB set, subcarrier, BWP, component carrier, carrier, frequency band, hertz (Hz), kilohertz (kHz), megahertz (MHz), etc.

[0305] It is understood that the aforementioned capability information can be carried in one or more UE capability reports. That is, each of the above capability information can be an independent UE capability, or multiple capability information can be different components or constituent parts of a single UE capability. For example, if a UE capability is whether it supports cross-frequency domain resource transmission, the constituent parts can include one or more of the capability information 2 to 6.

[0306] Optionally, the reporting of the aforementioned capability information can be per frequency band, per frequency band combination, or per feature set. Reporting per feature set can also be understood as per frequency band or per frequency band combination. Alternatively, the granularity of capability information reported by the terminal device can be at least one of the following: per band, per BC (band combination), or per FS (feature set, which can be understood as per band per BC).

[0307] For example, "Per band report" means that if the reporting band n41 supports this capability, then regardless of which band combination n41 is in, that band will support it.

[0308] For example, Per BC reporting means that if the reporting BC(n41+n79) supports the capability, then the band in that BC supports the capability.

[0309] For example, Per FS reporting means that whether the same band supports the capability can be reported independently in different BCs. For example, for BC(n41+n78), n41 supports the capability, but for BC(n41+n79), n41 may not support the capability.

[0310] Furthermore, whether a BC supports intra-band cross-carrier transmission and / or inter-band cross-carrier transmission should be reported separately. For whether inter-band cross-carrier transmission is supported within a BC, a single value (YorN) applicable to any band can be reported, or different values ​​can be reported separately for each per band pair (containing 2 bands) or band group (containing 2 or more bands). For example, for a BC (n41+n78+n79), n41+n78 can be reported as supported, and n41+n79 as not supported.

[0311] Furthermore, one frequency domain resource can correspond to one cell, and multiple frequency domain resources can also correspond to one cell; the specifics are not limited here.

[0312] For example, taking frequency domain resources as CC as an example, Figure 3EThe frequency domain resources in the code include: CC#0, CC#1, CC#2, and CC#3. A transmission between CC#0 and CC#1 can be called a cross-CC transmission.

[0313] For example, taking a frequency domain resource including 3 CCs and a terminal device supporting 2 (i.e., 2Tx) transmissions, cross-CC transmissions can have various scenarios. For example, Figure 4A This indicates that the terminal device supports 2Tx transmission across CC#1 and CC#2. For example, Figure 4B This indicates that the terminal device supports 1Tx transmission across CC#1 and CC#2, and also supports normal 1Tx transmission across CC#0. For example, Figure 4C This indicates that the terminal device supports 1Tx transmission across CC#0 and CC#1, and also supports normal 1Tx transmission across CC#2. For example, Figure 4D This indicates that the terminal device supports 2Tx transmission across CC#0, CC#1 and CC#2.

[0314] Optionally, cross-frequency domain resource transmission can also be the first mode of transmission. It is understood that cross-frequency domain resource transmission in this application only indicates that the technical essence of the transmission mode is that the transmission is located on multiple frequency domain resources, such as CC or BWP, and is not a limitation or constraint on the name of the transmission.

[0315] Step 202: The terminal device or network device determines the first information and the second information.

[0316] It should be noted that the method provided in this application embodiment can be applied to uplink, downlink, terminal device to terminal device, network device to network device, etc. For example, step 202 can be the terminal device determining the first information and the second information. As another example, step 202 can also be the network device determining the first information and the second information. The following description uses the terminal device determining the first information and the second information as an example; in practical applications, the network device can also determine the first information and the second information, and this is not limited here.

[0317] There are several ways for a terminal device to determine the first and second information. These can include receiving downlink information (such as DCI), RRC configuration, MAC layer signaling (such as MAC CE), pre-negotiation between the network device and the terminal device, methods specified by standard protocols, or pre-stored information on the terminal device. Of course, at least two of the above methods can be combined. The method for determining the first and second information is not limited here. It is understood that DCI can also be called PDCCH.

[0318] The first information includes multiple frequency domain resource assignment (FDRA) information, each corresponding to a different first frequency domain resource. The second information includes at least one indicator bit, which indicates that at least two of the multiple first frequency domain resources are used for cross-frequency domain resource transmission. It is understood that frequency domain resource assignment information can refer to information used to allocate frequency domain resources, and its specific name is not limited here.

[0319] Alternatively, the first information is used to indicate a first transmission resource on a plurality of first frequency domain resources, and the second information includes at least one indication bit, which is used to indicate that the first transmission resource on at least two of the plurality of first frequency domain resources is used for cross-frequency domain resource transmission.

[0320] It should be noted that the relationship between multiple first frequency domain resources or at least two second frequency domain resources can include at least one of the following: intra-band continuity, intra-band discontinuity, inter-band, etc. Specifically, intra-band continuity refers to multiple first frequency domain resources or at least two second frequency domain resources being consecutive frequency domain resources within the same frequency band; intra-band discontinuity refers to multiple first frequency domain resources or at least two second frequency domain resources being discontinuous frequency domain resources within the same frequency band; and inter-band refers to multiple first frequency domain resources or at least two second frequency domain resources being frequency domain resources on different frequency bands. It is understood that the relationship between different frequency domain resources among multiple first frequency domain resources or at least two second frequency domain resources can include a combination of at least two of the above. Optionally, the subcarrier spacing (SCS) between multiple first frequency domain resources or at least two second frequency domain resources may be the same or different.

[0321] Optionally, the multiple FDRA information pieces correspond to multiple first frequency domain resources, which can be understood as the multiple FDRA information pieces being used to indicate third frequency domain resources on the multiple first frequency domain resources, or the multiple FDRA information pieces corresponding one-to-one with the multiple first frequency domain resources. Optionally, at least one indicator bit is specifically used to indicate that the third frequency domain resources on at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission. This can also be understood as using at least two second frequency domain resources among the multiple first frequency domain resources to define the range to limit the third frequency domain resources used for cross-frequency domain resource transmission.

[0322] For example, a network device indicates four frequency control areas (CCs), and the FDRA information corresponding to each CC indicates the third frequency domain resources on that CC. At least one indicator bit is used to indicate two of the four CCs used for cross-frequency domain resource transmission. The terminal device can then determine the third frequency domain resources on the two CCs used for cross-frequency domain resource transmission based on at least one indicator bit and the corresponding FDRA information. Alternatively, all indicated CCs can be used for cross-CC transmission.

[0323] The multiple first frequency domain resources can be understood as frequency domain resources indicated by the network device, frequency domain resources configured by the network device, active frequency domain resources, or residing frequency domain resources, etc. The at least two second frequency domain resources can be understood as resources among the multiple first frequency domain resources used for cross-frequency domain resource transmission. It is understood that the at least two second frequency domain resources can be all or part of the multiple first frequency domain resources; specific limitations are not specified here.

[0324] Furthermore, the frequency domain range of each of the multiple first frequency domain resources is different. For example, as mentioned above... Figure 3E The four CCs shown correspond to four different frequency domain ranges. Optionally, the number of frequency domain resources contained in each of the multiple first frequency domain resources may be different, for example, the number of PRBs, the number of subcarriers may be different, or the bandwidth of each first frequency domain resource may be different.

[0325] It should be noted that the information / signaling to which the first and second information belong can be the same or different. It is understood that the first and second information can be carried in the same RRC message, MAC CE, or DCI, or they can be carried in one or more different RRC messages, MAC CEs, or DCIs. For example, the first and second information can be carried in the same DCI. Alternatively, the first and second information can be carried in different DCIs. Another example is that the first information can be carried in a DCI, and the second information can be carried in an RRC configuration. Yet another example is that the first information can be carried in an RRC configuration, and the second information in a DCI. Yet another example is that the first information can be carried in an RRC configuration, and the second information in a MAC CE. Yet another example is that the first information can be carried in a MAC CE, and the second information in an RRC configuration. Yet another example is that the first information can be carried in a DCI, and the second information in a MAC CE. For example, the first information could be information carried in the MAC CE, and the second information could be information carried in the DCI, etc. This embodiment does not limit the information or signaling to which the first information belongs, nor the information or signaling to which the second information belongs. Optionally, if the first and second information are carried in the same information / signaling, they can be contained in the same or different parameters, fields, or time domains.

[0326] For ease of description, this embodiment uses the following example: the determination of the first and second information is based on DCI; multiple first frequency domain resources refer to multiple CCs; at least two second frequency domain resources refer to at least two CCs used for cross-CC transmission among the multiple CCs; and the third frequency domain resources refer to at least one PRB on the at least two CCs used for cross-CC transmission. In practical applications, the first and second frequency domain resources can also refer to bands, BWPs, or frequency domain resources corresponding to cells, etc. The third frequency domain resources can also refer to RBs, REs, RE sets, subcarriers, etc., and are not specifically limited here.

[0327] For example, such as Figure 5 As shown, the network device is configured with multiple first frequency domain resources, including CC#0, CC#1, CC#2, and CC#3. At least two second frequency domain resources used for cross-frequency domain resource transmission include CC#0 and CC#1. Third frequency domain resources are as follows... Figure 5 The gray frequency domain cells on at least two second frequency domain resources are shown.

[0328] It should be noted that if step 201 exists in this embodiment, the frequency domain resources and / or time domain resources described below are also related to the capability information reported by the terminal device. That is, when configuring or indicating time and frequency resources for the terminal device, the network device can combine the capability information of the terminal device. In other words, the network device can schedule the terminal device according to the capability information, for example, to perform cross-frequency domain resource transmission within the supported capability range or frequency domain range to obtain throughput gain.

[0329] Since this step involves at least one of the following: frequency domain resources, time domain resources, etc., they will be described separately below.

[0330] Part 1: Frequency Domain Resources.

[0331] It is understood that frequency domain resources can be configured or pre-configured by network devices, or resided or activated, or can be directly or indirectly indicated, etc., and the specifics are not limited here. In this embodiment, there are various cases in which multiple FDRA information correspond to multiple first frequency domain resources, which are described below.

[0332] In the first scenario, multiple FDRA messages are carried in the same DCI.

[0333] Optionally, multiple FDRA messages and at least one indicator bit are carried in the same DCI. That is, the network device sends a DCI to the terminal device. Correspondingly, the terminal device receives a DCI sent by the network device.

[0334] This situation is also understood as the first information and the second information being carried in the same DCI. Optionally, in this case, the multiple FDRA information can be multiple indications of a single FDRA field. For example, the DCI includes a single FDRA field, which includes indication 1, indication 2, ... Alternatively, the multiple FDRA information can be multiple FDRA fields. For example, the DCI includes multiple FDRA fields.

[0335] At least one indicator bit is specifically used to indicate multiple first frequency domain resources for cross-frequency domain resource transmission. It can be understood that one indicator bit represents one indicator domain.

[0336] In this case, the relationship between multiple first frequency domain resources and at least two second frequency domain resources can be varied, and / or, at least one indicator bit can be varied, which are described below:

[0337] 1. The number of at least one indicator bit is one.

[0338] In one scenario, the second information includes one indicator bit, where the indicator bit contains 1 bit, used to indicate whether multiple first frequency domain resources are used for cross-frequency domain resource transmission. That is, at least two second frequency domain resources refer to all of the multiple first frequency domain resources, or it can be understood as at least two second frequency domain resources referring to multiple first frequency domain resources (i.e., multiple first frequency domain resources are equivalent to at least two second frequency domain resources). Alternatively, it can be understood as multiple first frequency domain resources being used for cross-frequency domain resource transmission. For example, when the indicator bit is 1, it indicates that multiple first frequency domain resources are used for cross-frequency domain resource transmission; when the indicator bit is 0, it indicates that multiple first frequency domain resources are not used for cross-frequency domain resource transmission, or are used for traditional carrier aggregation transmission.

[0339] Furthermore, one indicator bit is used to indicate whether a third frequency domain resource determined according to FDRA information on multiple first frequency domain resources is used for cross-frequency domain resource transmission.

[0340] For example, one indicator bit is used to indicate that multiple first frequency domain resources are used for cross-frequency domain resource transmission or concurrent transmission. Or, one indicator bit is used to indicate whether multiple first frequency domain resources are used for virtual large bandwidth transmission, etc. Here, virtual large bandwidth corresponds to multiple first frequency domain resources or at least two second frequency domain resources.

[0341] For example, such as Figure 6A As shown, DCI includes multiple FDRA information (i.e., FDRA1 and FDRA2, etc.) and one indicator bit. For example, one indicator bit can be used to indicate that multiple first frequency domain resources are used for cross-frequency domain resource transmission with one bit of "1". One bit of "0" can be used to indicate that multiple first frequency domain resources are not used for cross-frequency domain resource transmission. Alternatively, one bit of "1" can be used to indicate that multiple first frequency domain resources are not used for cross-frequency domain resource transmission, and one bit of "0" can be used to indicate that multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0342] In another scenario, the second information includes one indicator bit, and this indicator bit contains multiple bits. In this case, each bit corresponds to one FDRA / first frequency domain resource, and the third frequency domain resources (indicated by the FDRA) on the first frequency domain resources can be determined based on the indicator value / status value for cross-carrier transmission.

[0343] For example, the second information includes one indicator bit, and this indicator bit contains multiple bits, where each bit corresponds one-to-one with multiple first frequency domain resources, or each bit corresponds one-to-one with a third frequency domain resource determined according to FDRA information on multiple first frequency domain resources. This can be understood as indicating based on a bitmap. The multiple bits are used to indicate that at least two second frequency domain resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission, or to indicate that at least two third frequency domain resources on multiple first frequency domain resources, determined according to FDRA information, are used for cross-frequency domain resource transmission. That is, at least two second frequency domain resources are a subset of the multiple first frequency domain resources. Or, it can be understood as a subset of the multiple first frequency domain resources being used for cross-frequency domain resource transmission.

[0344] In one possible implementation, the determination is made based on whether the values ​​of multiple bits are the same. That is, the third frequency domain resource indicated by the FDRA information corresponding to the bits with the same value among the multiple bits is used for cross-frequency domain resource transmission. The third frequency domain resource indicated by the FDRA information corresponding to the bits with different values ​​among the multiple bits is not used for cross-frequency domain resource transmission. Alternatively, it can be understood that the values ​​(also called status values) of the bits corresponding to at least two second frequency domain resources are the same.

[0345] In another possible implementation, the determination is made based on whether the bit value is 1 or 0. For example, if the bit value is 1, the FDRA information indicating the third frequency domain resource corresponding to a bit with a value of 1 among multiple bits is used for cross-frequency domain resource transmission. In this case, the third frequency domain resource indicated by the FDRA information corresponding to a bit with a value of 0 among multiple bits is not used for cross-frequency domain resource transmission. Similarly, if the bit value is 0, the FDRA information indicating the third frequency domain resource corresponding to a bit with a value of 0 among multiple bits is used for cross-frequency domain resource transmission. In this case, the third frequency domain resource indicated by the FDRA information corresponding to a bit with a value of 1 among multiple bits is not used for cross-frequency domain resource transmission.

[0346] Another scenario involves a single indicator bit comprising multiple bits, used to indicate that at least two second frequency domain resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission, or to indicate that at least two third frequency domain resources on multiple first frequency domain resources, determined according to FDRA information, are used for cross-frequency domain resource transmission. In other words, at least two second frequency domain resources are a subset of the multiple first frequency domain resources. Alternatively, it can be understood as a subset of the multiple first frequency domain resources being used for cross-frequency domain resource transmission.

[0347] Optionally, each different status value or indication value corresponding to the one indication bit corresponds to a carrier indication pattern for cross-carrier transmission. It is understood that the number of bits contained in the one indication bit is determined based on the number of all possible cases of two or more consecutive carriers in multiple first frequency domain resources, or based on the number of consecutive carrier patterns configured or pre-configured by the network device.

[0348] For example, based on the number of all possible cases of two or more consecutive carriers in multiple first frequency domain resources, the cases of all consecutive carriers of CC#0, CC#1, CC#2, and CC#3 include six possibilities: CC#0+CC#1, CC#0+CC#1+CC#2, CC#0+CC#1+CC#2+CC#3, CC#1+CC#2, CC#1+CC#2+CC#3, and CC#2+CC#3. Therefore, 3 bits are needed for indication. For example, 000, 001, 010, 011, 100, and 101 are used to indicate the above six cases, while 110 and 111 are reserved states. Optionally, except for the indicated consecutive carriers used for cross-frequency domain resource transmission, the resources on the other carriers are not used for cross-frequency domain resource transmission, or are used for traditional carrier aggregation transmission, or are not transmitted.

[0349] For example, the number of consecutive carrier patterns configured or pre-configured by the network device determines the possible scenarios for all consecutive carriers of CC#0, CC#1, CC#2, and CC#3, which include six possibilities. If the network configuration or pre-configuration includes four of these six scenarios, such as CC#0+CC#1, CC#0+CC#1+CC#2, CC#1+CC#2, and CC#2+CC#3, then a 2-bit indication is required. For example, 00, 01, 10, and 11 are used to indicate these four scenarios respectively. Optionally, except for the indicated consecutive carriers used for cross-frequency domain resource transmission, the resources on the remaining carriers are not used for cross-frequency domain resource transmission, or are used for traditional carrier aggregation transmission, or are not transmitted at all.

[0350] 2. At least one indicator bit may be multiple.

[0351] This can be understood as follows: each indicator bit is one bit, and multiple indicator bits (multiple bits) are used to indicate whether at least two second frequency domain resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission. Each bit corresponds one-to-one with multiple first frequency domain resources, or each bit corresponds one-to-one with a third frequency domain resource on multiple first frequency domain resources determined according to FDRA information. Multiple bits are used to indicate that at least two second frequency domain resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission, or to indicate that at least two third frequency domain resources on multiple first frequency domain resources, determined according to FDRA information, are used for cross-frequency domain resource transmission. That is, at least two second frequency domain resources are a subset of the multiple first frequency domain resources. Alternatively, it can be understood as a subset of the multiple first frequency domain resources being used for cross-frequency domain resource transmission. Optionally, for details, please refer to the aforementioned description of one indicator bit containing multiple bits, which will not be repeated here.

[0352] Optionally, at least one indicator bit includes a plurality of second indicator bits, each second indicator bit being 1 bit, and the plurality of second indicator bits correspond one-to-one with a plurality of first frequency domain resources. The plurality of second indicator bits are used to indicate that at least two second frequency domain resources on the plurality of first frequency domain resources are used for cross-frequency domain resource transmission, or to indicate that a third frequency domain resource on at least two second frequency domain resources on the plurality of first frequency domain resources, determined according to FDRA information, is used for cross-frequency domain resource transmission.

[0353] Furthermore, multiple second indicator bits are used to indicate that at least two of the multiple first frequency domain resources are used for third frequency domain resources for cross-frequency domain resource transmission. These multiple second indicator bits can be configured in various ways.

[0354] In one possible implementation, the determination is made based on whether the values ​​of the indicator bits are the same. That is, if the second indicator bits with the same value among multiple second indicator bits indicate that the third frequency domain resource is used for cross-frequency domain resource transmission, the third frequency domain resource is used for cross-frequency domain resource transmission. If the second indicator bits with different values ​​among multiple second indicator bits indicate that the third frequency domain resource is not used for cross-frequency domain resource transmission. Alternatively, it can be understood that at least two second frequency domain resources have the same value for their second indicator bits (which can also be called status values).

[0355] In another possible implementation, the determination is made based on whether the indicator bit value is 1 or 0. For example, if the indicator bit value is 1, the FDRA information corresponding to a second indicator bit with a value of 1 indicates that the third frequency domain resource is used for cross-frequency domain resource transmission. In this case, the third frequency domain resource indicated by the FDRA information corresponding to a second indicator bit with a value of 0 is not used for cross-frequency domain resource transmission. Similarly, if the indicator bit value is 0, the FDRA information corresponding to a second indicator bit with a value of 0 indicates that the third frequency domain resource is used for cross-frequency domain resource transmission. In this case, the third frequency domain resource indicated by the FDRA information corresponding to a second indicator bit with a value of 1 is not used for cross-frequency domain resource transmission.

[0356] In another possible implementation, the determination is made based on whether the value of the indicator bit is a preset threshold or falls within a preset range. That is, the third frequency domain resource indicated by the FDRA information corresponding to the second indicator bit whose value is a preset threshold or falls within a preset range is used for cross-frequency domain resource transmission. The third frequency domain resource indicated by the FDRA information corresponding to the second indicator bit whose value is not a preset threshold or falls within a preset range is not used for cross-frequency domain resource transmission.

[0357] It is understood that the above is just an example of how to use multiple second indicator bits. In practical applications, there may be other methods (for example, the frequency domain resources corresponding to indicator bits with a difference of less than a threshold are used for cross-frequency domain resource transmission, etc.), which are not limited here.

[0358] For example, such as Figure 6B As shown, DCI includes multiple FDRA information (i.e., FDRA1, FDRA2, FDRA3, etc.) and multiple second indicator bits (i.e., indicator bit 1, indicator bit 2, indicator bit 3, etc.). FDRA1 corresponds to indicator bit 1, FDRA2 corresponds to indicator bit 2, and FDRA3 corresponds to indicator bit 3.

[0359] For example, Figure 6BIf the value of indicator bit 1 is the same as the value of indicator bit 2, and the value of indicator bit 1 is different from the value of indicator bit 3, then it means that the third frequency domain resource indicated by indicator bit 1 (FDRA1) and the third frequency domain resource indicated by indicator bit 2 (FDRA2) are used for cross-frequency domain resource transmission, while the third frequency domain resource indicated by indicator bit 3 (FDRA3) is not used for cross-frequency domain resource transmission or is used for concurrent transmission. Taking each second indicator bit as an example where 1 bit indicates the status value, for instance, if indicator bits 1 and 2 are both "1" and indicator bit 3 is "0", then the third frequency domain resources indicated by FDRA1 and FDRA2 are used for cross-frequency domain resource transmission, and the third frequency domain resource indicated by FDRA3 is not used for cross-frequency domain resource transmission. As another example, if indicator bits 1 and 3 are both "0" and indicator bit 2 is "1", then the third frequency domain resources indicated by FDRA1 and FDRA3 are used for cross-frequency domain resource transmission, and the third frequency domain resource indicated by FDRA2 is not used for cross-frequency domain resource transmission.

[0360] For example, Figure 6B If the value of indicator bit 1 is within a preset range, the value of indicator bit 2 is within a preset range, and the value of indicator bit 3 is not within a preset range, then it means that the third frequency domain resource indicated by FDRA1 corresponding to indicator bit 1 and the third frequency domain resource indicated by FDRA2 corresponding to indicator bit 2 are used for cross-frequency domain resource transmission, and the third frequency domain resource indicated by FDRA3 corresponding to indicator bit 3 is not used for cross-frequency domain resource transmission or for concurrent transmission.

[0361] In the second scenario, multiple FDRA messages are carried in different DCIs.

[0362] Optionally, multiple FDRA information and at least one indication bit are carried in multiple DCIs. That is, the network device sends multiple DCIs to the terminal device. Correspondingly, the terminal device receives multiple DCIs sent by the network device. The multiple DCIs are used to indicate whether at least two second frequency domain resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission. Each DCI corresponds one-to-one with multiple first frequency domain resources, or each DCI corresponds one-to-one with a third frequency domain resource determined according to the FDRA information on multiple first frequency domain resources. The multiple DCIs are used to indicate that at least two second frequency domain resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission, or to indicate that at least two third frequency domain resources on multiple first frequency domain resources, determined according to the FDRA information, are used for cross-frequency domain resource transmission. That is, at least two second frequency domain resources are a subset of the multiple first frequency domain resources. Or it can be understood as a subset of the multiple first frequency domain resources being used for cross-frequency domain resource transmission.

[0363] This situation can also be understood as the first piece of information being carried in different DCIs, and / or the second piece of information being carried in different DCIs. Multiple FDRA pieces of information in this situation can also be referred to as multiple FDRA fields.

[0364] Furthermore, at least one indicator bit includes multiple third indicator bits, each corresponding one-to-one with multiple first frequency domain resources and one-to-one with multiple FDRA information. The values ​​of the second indicator bits corresponding to at least two second frequency domain resources are identical. The multiple third indicator bits are used to indicate that at least two second frequency domain resources on the multiple first frequency domain resources are used for cross-frequency domain resource transmission, or to indicate that the third frequency domain resources on at least two second frequency domain resources on the multiple first frequency domain resources, determined according to the FDRA information, are used for cross-frequency domain resource transmission.

[0365] Furthermore, at least two second frequency domain resources can refer to all or part of the frequency domain resources among multiple first frequency domain resources; the specifics are not limited here. It is understood that each DCI includes one FDRA and a corresponding third indicator bit.

[0366] In this configuration, multiple third indicator bits correspond one-to-one with multiple first frequency domain resources. This can be understood as one third indicator bit corresponding to one first frequency domain resource. Alternatively, it can be understood as one third indicator bit indicating whether a first frequency domain resource or a third frequency domain resource on a first frequency domain resource is used for cross-frequency domain resource transmission. Similarly, multiple third indicator bits correspond one-to-one with multiple FDRA information entries. This can be understood as one third indicator bit corresponding to one FDRA information entry. Alternatively, it can be understood as one third indicator bit indicating whether a first frequency domain resource corresponding to an FDRA information entry or a third frequency domain resource on a first frequency domain resource is used for cross-frequency domain resource transmission.

[0367] Furthermore, in this case, the third indicator bit can be a newly added indicator bit in the DCI, or it can be a reused indicator bit in the DCI, etc., and there is no specific limitation here. For example, in the same DCI of the Hybrid Automatic Repeat reQuest process (HARQ process), the third frequency domain resources indicated by the FDRA information on at least two second frequency domain resources are used for cross-frequency domain resource transmission.

[0368] Similar to the description of the second indicator bit in the first case, the multiple third indicator bits in the second case can be in various ways as follows.

[0369] In one possible implementation, the determination is made based on whether the values ​​of the indicator bits are the same. That is, if multiple third indicator bits have the same value, the FDRA information indicating the third frequency domain resource is used for cross-frequency domain resource transmission. If multiple third indicator bits have different values, the FDRA information indicating the third frequency domain resource is not used for cross-frequency domain resource transmission. Alternatively, it can be understood that at least two second frequency domain resources have the same value for their third indicator bits (also called status values). For example, one third indicator bit can include 1 bit.

[0370] In another possible implementation, the determination is made based on whether the indicator bit value is 1 or 0. For example, if the indicator bit value is 1, the FDRA information corresponding to a third indicator bit with a value of 1 indicates that the third frequency domain resource is used for cross-frequency domain resource transmission. In this case, the third frequency domain resource indicated by the FDRA information corresponding to a third indicator bit with a value of 0 is not used for cross-frequency domain resource transmission. Similarly, if the indicator bit value is 0, the FDRA information corresponding to a third indicator bit with a value of 0 indicates that the third frequency domain resource is used for cross-frequency domain resource transmission. In this case, the third frequency domain resource indicated by the FDRA information corresponding to a third indicator bit with a value of 1 is not used for cross-frequency domain resource transmission.

[0371] In another possible implementation, the determination is made based on whether the value of the indicator bit is a preset threshold or falls within a preset range. That is, the FDRA information corresponding to the third indicator bit whose value is a preset threshold or falls within a preset range indicates that the third frequency domain resource is used for cross-frequency domain resource transmission. The FDRA information corresponding to the third indicator bit whose value is not a preset threshold or falls within a preset range does not indicate that the third frequency domain resource is used for cross-frequency domain resource transmission.

[0372] It is understood that the above is merely an example illustrating the use of multiple third indicator bits. In practical applications, other methods are possible (e.g., frequency domain resources corresponding to indicator bits with a difference less than a threshold are used for cross-frequency domain resource transmission, etc.), which are not limited here. Optionally, further details can be found in the aforementioned description of one indicator bit containing multiple bits or multiple indicator bits, each containing one bit, which will not be repeated here.

[0373] For example, such as Figure 7A As shown, the network device sends multiple DCIs (e.g., DCI1, DCI2, DCI3) to the terminal device. Among them, DCI1 includes FDRA1 and indicator bit 1, DCI2 includes FDRA2 and indicator bit 2, and DCI3 includes FDRA3 and indicator bit 3.

[0374] For example, Figure 7AIf the value of indicator bit 1 is the same as the value of indicator bit 2, and the value of indicator bit 1 is different from the value of indicator bit 3, then it means that the third frequency domain resource indicated by indicator bit 1 (FDRA1) and the third frequency domain resource indicated by indicator bit 2 (FDRA2) are used for cross-frequency domain resource transmission, while the third frequency domain resource indicated by indicator bit 3 (FDRA3) is not used for cross-frequency domain resource transmission or is used for concurrent transmission. Taking each third indicator bit as an example where 1 bit indicates the status value, for instance, if indicator bits 1 and 2 are both "1" and indicator bit 3 is "0", then the third frequency domain resources indicated by FDRA1 and FDRA2 are used for cross-frequency domain resource transmission, and the third frequency domain resource indicated by FDRA3 is not used for cross-frequency domain resource transmission. As another example, if indicator bits 1 and 3 are both "0" and indicator bit 2 is "1", then the third frequency domain resources indicated by FDRA1 and FDRA3 are used for cross-frequency domain resource transmission, and the third frequency domain resource indicated by FDRA2 is not used for cross-frequency domain resource transmission.

[0375] For example, Figure 7A If the value of indicator bit 1 is within a preset range, the value of indicator bit 2 is within a preset range, and the value of indicator bit 3 is not within a preset range, then it means that the third frequency domain resource indicated by FDRA1 corresponding to indicator bit 1 and the third frequency domain resource indicated by FDRA2 corresponding to indicator bit 2 are used for cross-frequency domain resource transmission, and the third frequency domain resource indicated by FDRA3 corresponding to indicator bit 3 is not used for cross-frequency domain resource transmission or for concurrent transmission.

[0376] It is understandable that the above are just examples illustrating various situations where multiple FDRA information corresponds to multiple first frequency domain resources. In practical applications, there may be other situations, which are not limited here.

[0377] Furthermore, multiple FDRA information can specifically be used to indicate the start positions of multiple frequency domain resources and / or the number of frequency domain elements (e.g., the number of PRBs, RBs, subcarriers, RB sets, etc.) of multiple third frequency domain resources. Here, the start positions of multiple frequency domain resources refer to the start positions of the third frequency domain resources on multiple first frequency domain resources or at least two second frequency domain resources, and the number of frequency domain resources of multiple third frequency domain resources refers to the number of frequency domain elements contained in the third frequency domain resources on multiple first frequency domain resources or at least two second frequency domain resources. It is understood that multiple FDRA information corresponds one-to-one with multiple first frequency domain resources or at least two second frequency domain resources, or one-to-one with third frequency domain resources on multiple first frequency domain resources or at least two second frequency domain resources.

[0378] Furthermore, to reduce the number of indication bits for the number of frequency domain resources indicated by the FDRA information, the number of frequency domain resources of the third frequency domain resources on each of the at least two second frequency domain resources is the same. For example, the number of frequency domain units of the third frequency domain resources on each of the multiple first frequency domain resources or on each of the at least two second frequency domain resources is based on an information indication (i.e., the number of frequency domain resources is indicated only once) and applied to the third frequency domain resources on each second frequency domain resource. Alternatively, the number of frequency domain resources is based on a quantity information indication and applied to the third frequency domain resources on each second frequency domain resource. It is understood that this quantity information is located in the same domain or a different domain from the multiple FDRA information. It is understood that in this case, the multiple FDRA information is used to indicate that the starting position of the multiple frequency domain resources is the starting position of the frequency domain resources of the third frequency domain resources on the multiple first frequency domain resources or on at least two second frequency domain resources, and the quantity information is used to determine the number of frequency domain units of the third frequency domain resources on each of the multiple first frequency domain resources or on each of the at least two second frequency domain resources.

[0379] Furthermore, because the terminal device needs to align the number of bits in the information contained in the DCI with the network device to perform correct blind detection, the total number of FDRA information in the scheduling information is generally equal to the configured number of CCs to avoid the terminal device being unable to demodulate correctly due to uncertainty about the number of bits in the DCI. However, this limits scheduling flexibility and leads to high signaling overhead. In reality, the network device may not intend to schedule all carriers; it may only indicate the FDRA information of the carriers to be scheduled, which can ensure scheduling flexibility and reduce signaling overhead. However, in this case, the terminal device still needs to align with the network device on the number and / or number of bits of the FDRA information to ensure correct blind detection of downlink control information. The network device and the terminal device can also align the number and / or number of bits of the FDRA information / FDRA field based on the following methods.

[0380] In Method 1, multiple first frequency domain resources are all the configured CCs (actually, all the indicated CCs, since each has a corresponding FDRA). The scheduling information indicates the FDRA of each of the configured CCs and indicates that some of these CCs are second frequency domain resources for cross-carrier transmission.

[0381] In this approach, to ensure the terminal device knows the number of DCI bits for blind detection, all bits must be indicated. This method is costly and restrictive because each scheduling operation requires scheduling every configured CC.

[0382] Method 2: If multiple first frequency domain resources are indicated frequency domain resources (which may include all or some of the configured CCs), then the scheduling information indicates the FDRA of each CC that needs to be scheduled and indicates that some of these CCs are second frequency domain resources for cross-carrier transmission.

[0383] This approach saves signaling overhead, and combined with the scheme design here, it avoids situations where the terminal device is unaware of the number of DCI bits, ensuring that the DCI information can be correctly decoded. This is a preferred solution.

[0384] It's important to note that the CCs configured here can also be replaced with active CCs, resident CCs, etc., essentially referring to the CCs that the terminal device is using. This is because not all configured CCs are necessarily active; perhaps only a few CCs in the configuration will be active simultaneously, while others will remain inactive. In other words, the indicated CCs should be some or all of the configured / active / resident CCs.

[0385] Optionally, the number of bits and / or the number of FDRA fields included in the first information are determined according to one or more of the following: a third value, a fourth value, a sixth value, and a seventh value.

[0386] The third value is the sum of the number of frequency domain units contained in the fourth frequency domain resource and the number of frequency domain units contained in at least one fifth frequency domain resource. The fourth frequency domain resource is the second frequency domain resource in which the first information is located among at least two second frequency domain resources. The at least one fifth frequency domain resource is a frequency domain resource in the configured plurality of frequency domain resources whose frequency range is higher than that of the fourth frequency domain resource.

[0387] The fourth value is the sum of the third and fifth values. The fifth value is the number of frequency domain units contained in the first frequency domain interval, or the fifth value is the sum of the number of frequency domain units contained in the first frequency domain interval and the number of frequency domain units contained in the second frequency domain interval. The first frequency domain interval is the frequency domain interval between the fourth frequency domain resource and the fifth frequency domain resource that is adjacent to the frequency domain range / index. The second frequency domain interval is the frequency domain interval between at least two fifth frequency domain resources.

[0388] The sixth value is the fourth frequency domain resource, plus the sum of the number of frequency domain resources with a frequency range higher than the fourth frequency domain resource among the configured frequency domain resources;

[0389] The seventh value is the number of frequency domain units contained in each frequency domain resource, among the number of frequency domain resources in the fourth frequency domain resource and the number of frequency domain resources in the configured multiple frequency domain resources with frequency ranges higher than the fourth frequency domain resource.

[0390] Furthermore, the number of FDRA bits can be determined based on the number of RBs and / or CCs. The number of FDRA fields can be determined based on the number of CCs. Optionally, the number of TDRA fields can also be replaced by one of the following: frequency range, frequency location, frequency point, or frequency resource index.

[0391] It should be noted that the configured multiple frequency domain resources can also be multiple resident frequency domain resources or multiple active frequency domain resources.

[0392] For example, the number of bits in the FDRA field contained in the first information is determined according to a third value. This third value is the sum of the number of frequency domain units on the CC where the DCI is located and the number of frequency domain units on the CCs with frequency ranges higher than the CC where the DCI is located among the configured CCs. For example... Figure 7B As shown, if DCI is on CC#2, then the number of bits in the FDRA field contained in the first information is determined based on the number of frequency domain units in CC#2 and the number of frequency domain units in CC#3.

[0393] For example, the number of bits in the FDRA field contained in the first information is determined according to a fourth value. The fourth value is the sum of the number of frequency domain units on the CC where the DCI is located and a fifth value. The fifth value is the number of frequency domain units in the frequency domain spacing between the CC where the DCI is located and its adjacent CCs (e.g., including two CCs, one of which carries the DCI). Alternatively, the fourth value is the sum of the number of frequency domain units on the CC where the DCI is located, the number of frequency domain units on the CCs with a higher frequency domain range than the CC where the DCI is located among the configured CCs, and the fifth value. The fifth value is the sum of the number of frequency domain units in the frequency domain spacing between the CC where the DCI is located and its adjacent CCs, the number of frequency domain units in the frequency domain spacing between the CCs with a higher frequency domain range than the CC where the DCI is located and the remaining CCs other than the CC where the DCI is located among the configured CCs (e.g., including three or more CCs, one of which carries the DCI, and the remaining CCs have frequency domain spacing).

[0394] Part Two: Time Domain Resources.

[0395] The first part above described the frequency domain resources used for transmission. The following section, taking cross-frequency domain resource transmission as an example of cross-CC transmission, describes the time domain resource indications for transmission. It can be understood that time domain resources can be configured or pre-configured by network devices, or they can be directly or indirectly indicated, etc. The SCS of different CCs can be the same or different, and no specific limitation is made here.

[0396] Furthermore, in this embodiment, time-domain resources can refer to: radio frames, subframes, slots, mini-slots, Orthogonal Frequency Division Multiplexing (OFDM) symbols, seconds, milliseconds, microseconds, etc., without specific limitations here. It is understood that different time-domain resources in this invention can all be one of the above, and their meanings can be the same or different. For ease of description, the following description will use slots as an example of time-domain resources.

[0397] In this embodiment, there are several cases of time-domain resource indication, which are described below.

[0398] The first method directly indicates the time domain resources used for transmission on each first frequency domain resource or each second frequency domain resource.

[0399] This situation can also be understood as the terminal device being able to directly determine the time domain resources used for transmission through third-party information.

[0400] Optionally, the terminal device determines third information, which includes at least one time domain resource assignment (TDRA) information, the at least one TDRA information being used to indicate the first time domain resource used for transmission.

[0401] Similar to the aforementioned FDRA information, there are various ways for terminal devices to determine third-party information. These include receiving downlink information (such as DCI), RRC configuration, MAC layer signaling (such as MAC CE), pre-negotiation between network devices and terminal devices, methods specified by standard protocols, and pre-stored information on the terminal device. Of course, at least two of the above methods can be combined. The method for determining third-party information is not limited here.

[0402] Furthermore, at least one TDRA message and the aforementioned multiple FDRA messages can be carried in the same information / signaling, or at least one TDRA message and the aforementioned multiple FDRA messages can be carried in different information / signaling; the specifics are not limited here. It is understood that there is a one-to-one correspondence between at least one TDRA message and at least one FDRA message. For example, at least one TDRA message and at least one FDRA message can be carried in the same information / signaling, such as in a DCI; or, each TDRA message in at least one TDRA message and its corresponding FDRA message in at least one FDRA message can be carried in the same information / signaling, such as in a DCI. It is understood that different TDRA messages can be carried in different information / signaling.

[0403] It is understood that there can be one or more TDRA messages. At least one TDRA message can be carried in any one or a combination of DCI, RRC, MAC CE and other information / signaling.

[0404] In one possible implementation, the quantity of at least one TDRA information is one, and the terminal device can determine the time-domain resources used by multiple first frequency domain resources or at least two second frequency domain resources for cross-frequency domain resource transmission based on one TDRA information. For example, the terminal device can determine the time-domain resources used by at least two CCs for cross-CC transmission based on one TDRA information.

[0405] Optionally, at least one TDRA message indicates that at least two CCs use one time slot for transmission.

[0406] For example, at least two CCs include CC#1 and CC#2. For instance, if CC#1 and CC#2 have the same SCS (e.g., both SCS is 15kHz), the time-domain resources of CC#1 and CC#2 can be configured as follows: Figure 8A As shown, CC#1 and CC#2 have the same or completely overlapping time-domain resources. For example, when CC#1 and CC#2 have different SCS (e.g., CC#1's SCS is 30kHz and CC#2's SCS is 15kHz), the time-domain resources of CC#1 and CC#2 can be as follows: Figure 8B As shown, the time-domain resources of CC#1 and CC#2 partially overlap.

[0407] For example, a network device sends a DCI to an end device, in which a TDRA message indicates the use of the same indexed time domain symbol on each time slot of each CC.

[0408] In another possible implementation, the number of at least one TDRA information messages can be multiple. The terminal device can determine multiple first frequency domain resources or time domain resources used by at least two CCs for cross-CC transmission based on the multiple TDRA information messages. These multiple TDRA information messages can be carried in the same information / signaling or in different information / signaling messages. The time domain resources indicated by different TDRA information messages can be the same or different; this is not specifically limited here.

[0409] Optionally, multiple TDRA information pieces may correspond one-to-one with third frequency domain resources on multiple first frequency domain resources, or multiple TDRA information pieces may correspond one-to-one with third frequency domain resources on at least two second frequency domain resources transmitted across frequency domain resources. Alternatively, multiple TDRA information pieces may correspond one-to-one with the SCS type of at least two second frequency domain resources, or multiple TDRA information pieces may correspond one-to-one with the SCS type of multiple first frequency domain resources, etc., and the specifics are not limited here.

[0410] Here, SCS type can be understood as different kinds / cases of SCS intervals. For example, the time domain symbols used in the time slots on the first or second frequency domain resources of each different SCS are indicated by multiple TDRA information. Alternatively, it can be understood that the number of multiple TDRA information is equal to and corresponds one-to-one with the number of SCS types of multiple first frequency domain resources or at least two second frequency domain resources. That is, one frequency domain resource of one SCS type corresponds to one TDRA information.

[0411] For example, multiple TDRA information includes TDRA1 and TDRA2. SCS types include 15 kHz and 30 kHz, etc. The time-domain resources of a CC with SCS = 15 kHz are indicated by TDRA1, and the time-domain resources of a CC with SCS = 30 kHz are indicated by TDRA2.

[0412] The second method indirectly indicates the time domain resources used for transmission on each first frequency domain resource or each second frequency domain resource.

[0413] This can also be understood as determining the time-domain resources used for transmission on each carrier based on the time-domain resources on the reference carrier, or, alternatively, the terminal device can indirectly determine the time-domain resources used for transmission through the fourth information. That is, the terminal device can determine all the time-domain resources used for transmission through the reference time-domain resources. For example, the terminal device first determines the reference time-domain resources corresponding to the reference second frequency domain resources in at least two second frequency domain resources based on the fourth information, and then determines the time-domain resources corresponding to the other frequency domain resources based on the reference time-domain resources corresponding to the reference second frequency domain resources.

[0414] Optionally, the terminal device determines fourth information, which includes at least one TDRA information. The at least one TDRA information is used to indicate the second time domain resource corresponding to the third frequency domain resource on the reference second frequency domain resource among at least two second frequency domain resources. The at least two second frequency domain resources include the reference second frequency domain resource and the non-reference second frequency domain resource. The non-reference second frequency domain resource can also be understood as the second frequency domain resource other than the reference second frequency domain resource among the at least two second frequency domain resources.

[0415] Among them, the third time domain resource corresponding to the third frequency domain resource on the non-reference second frequency domain resource is aligned with the second time domain resource.

[0416] In this application embodiment, the reference second frequency domain resource is at least one of the following among at least two second frequency domain resources: the second frequency domain resource with the smallest subcarrier spacing SCS, the second frequency domain resource with the largest SCS, the second frequency domain resource where the signaling carrying the fourth information is located, the second frequency domain resource with the smallest index on at least two second frequency domain resources, the second frequency domain resource with the largest index on at least two second frequency domain resources, the second frequency domain resource where the frequency domain start position indicated by the TDRA information is located, etc.

[0417] The following example illustrates the alignment process for different reference second frequency domain resources.

[0418] Example 1, taking a time-domain resource as a time slot, and the reference second frequency-domain resource as the second frequency-domain resource with the smallest SCS among at least two second frequency-domain resources as an example. The third time-domain resource corresponding to the third frequency-domain resource on a non-reference second frequency-domain resource is aligned with the second time-domain resource. It can be understood that the time slot resource indicated by TDRA in this case is the second time slot resource referencing the second frequency-domain resource, not the third time-domain resource corresponding to the third frequency-domain resource on a non-reference second frequency-domain resource aligned with the second time-domain resource. For example, as... Figure 9A As shown, one timeslot is used on the reference CC with the smallest SCS. The number of timeslots for other non-reference CCs is aligned in the time domain with the one timeslot of the reference CC. That is, CC#2 is the reference CC, and the timeslots of CC#1 are aligned with the timeslots of CC#2. It can be understood that the time domain resource alignment here refers to the alignment of the start and end positions of the timeslots used for transmission on different CCs.

[0419] In Example 1 above, the fourth information includes at least one TDRA information in various ways.

[0420] For example, a network device sends a DCI to a terminal device, which includes a TDRA (Time Domain Representation Array) information. The TDRA information indicates the symbols used on each time slot for cross-frequency domain resource transmission for each CC, wherein the symbol indices used on each time slot for cross-frequency domain resource transmission for each CC are the same. Alternatively, a TDRA information indicates the symbols allocated on the reference CC (CC) with the smallest SCS (Segment Classification) among multiple CCs or at least two CCs for cross-frequency domain resource transmission, with the time domain resources of the other CCs aligned according to the reference CC's time domain resources. It can be understood that time domain resource alignment here refers to the alignment of the start and end positions of the symbols used for transmission on different CCs.

[0421] For example, a network device sends a DCI to a terminal device. This DCI includes multiple TDRA information. The number of TDRAs can be the same as the number of configured CCs, the number of at least two CCs transmitted across frequency domains, the number of SCS types of configured CCs, or the number of SCS types of at least two CCs transmitted across frequency domains, etc. The specific number is not limited here. It can be understood that the above consistency in quantity can be interpreted as a one-to-one correspondence. Correspondingly, different TDRA information can be used to indicate the symbols used on the time slots of different CCs (i.e., multiple TDRA information respectively indicate the symbols used on the time slots of the configured multiple CCs or at least two CCs transmitted across frequency domains). Different TDRA information can also be used to indicate the symbols used on the time slots of CCs with different SCS types, etc., the specific number is not limited here. The description of SCS types and their correspondences can refer to the description in the first case mentioned above, and will not be repeated here.

[0422] For example, a network device sends multiple DCIs to a terminal device. Each DCI includes one TDRA (Time Division Representation Array) message, and one DCI corresponds to one CC (Cybernetic Interchange). That is, the number of TDRAs can be the same as the number of configured CCs, the number of at least two CCs transmitted across frequency domains, the number of SCS (Segment Classification) types of configured CCs, or the number of SCS types of at least two CCs transmitted across frequency domains, etc. The specific number is not limited here. It can be understood that the above consistency can be interpreted as a one-to-one correspondence. Correspondingly, different TDRA messages can be used to indicate the symbols used on the time slots of different CCs (i.e., multiple TDRA messages respectively indicate the symbols used on the time slots of the configured multiple CCs or the at least two CCs transmitted across frequency domains).

[0423] Example 2, taking a time-domain resource as a time slot, and the reference second frequency-domain resource as the second frequency-domain resource with the largest SCS among at least two second frequency-domain resources as an example. The third time-domain resource corresponding to the third frequency-domain resource on a non-reference second frequency-domain resource is aligned with the second time-domain resource. It can be understood that the time slot resource indicated by TDRA in this case is the second time slot resource referencing the second frequency-domain resource, not the third time-domain resource corresponding to the third frequency-domain resource on a non-reference second frequency-domain resource aligned with the second time-domain resource. For example, as... Figure 9B As shown, one timeslot is used on the reference CC with the largest SCS. The number of timeslots for other non-reference CCs is aligned in the time domain according to the one timeslot of the reference CC. That is, CC#1 is the reference CC, and the timeslots of CC#2 are aligned according to the timeslot of CC#1. It can be understood that the time domain resource alignment here refers to the alignment of the start and end positions of the timeslots used for transmission on different CCs.

[0424] In Example 2 above, the fourth information includes at least one TDRA information, which has several similar cases to those in Example 1 above, and will not be repeated here.

[0425] Example 3, taking time-domain resources as time slots and the reference second-frequency-domain resource as the second-frequency-domain resource where the signaling carrying the fourth information resides, as an example. The third time-domain resource corresponding to the third-frequency-domain resource on a non-reference second-frequency-domain resource is aligned with the second time-domain resource. It can be understood that the time slot resource indicated by TDRA in this case is the second time slot resource referencing the second-frequency-domain resource, not the third time-domain resource corresponding to the third-frequency-domain resource on a non-reference second-frequency-domain resource aligned with the second time-domain resource. This Example 3 can also be understood as the terminal device using the detected CC of the DCI as a reference. It can be understood that time-domain resource alignment here refers to the alignment of the start and end positions of the time slots used for transmission on different CCs.

[0426] Example 4 illustrates a scenario where the time-domain resource refers to a time slot, the reference second frequency-domain resource is the second frequency-domain resource where the frequency start position indicated by the FDRA information is located, or the first frequency-domain resource with the lowest mid-frequency range among multiple first frequency-domain resources, or the second frequency-domain resource with the lowest frequency range among at least two second frequency-domain resources. Optionally, "lowest frequency range" can be replaced with "lowest frequency range" or "smallest index." The third time-domain resource corresponding to the third frequency-domain resource on the non-reference second frequency-domain resource is aligned with the second time-domain resource. It is understood that the time slot resource indicated by the TDRA in this case is the second time slot resource referencing the second frequency-domain resource, and the third time-domain resource corresponding to the third frequency-domain resource on the non-reference second frequency-domain resource is aligned with the second time-domain resource. It is understood that time-domain resource alignment here refers to the alignment of the start and end positions of the time slots used for transmission on different CCs.

[0427] Example 5, taking a symbol as an example, refers to a second frequency domain resource as the one with the smallest subcarrier spacing (SCS), or the largest SCS, or the second frequency domain resource where the signaling carrying the fourth information is located, or the second frequency domain resource with the smallest index among at least two second frequency domain resources. Symbols corresponding to third frequency domain resources on non-reference second frequency domain resources are aligned in the time domain with symbols used on the reference second frequency domain resource. It can be understood that this time-domain alignment refers to the alignment of the start and end positions of symbols used for transmission on different carriers (CCs).

[0428] It should be noted that Examples 1 to 4 above are merely examples from CC; in practical applications, these situations can be combined, and no specific limitations are made here. For example, Example 4 can be combined with Example 1. Figure 10As shown, if the terminal device determines that the starting RB of TDRA is located in CC#1 and the SCS of CC#1 is less than the SCS of CC#2, then it can be determined that the time domain resources of CC#2 are aligned with the time domain resources of CC#1.

[0429] It is understood that the above-mentioned method of indicating the time domain resources used for transmission is just an example. In practical applications, there may be other methods, such as indicating the starting position and quantity of time domain resources for each CC only once, and this indication applies to each CC. The specific method is not limited here.

[0430] Furthermore, TDRA information can be similar to the aforementioned FDRA information. Specifically, TDRA information can be used to indicate at least one of the following: the starting position of the transmitted time-domain resources, the number of transmitted time-domain resources, and the number of repetitions of the transmitted time-domain resources. The starting position of the time-domain resources refers to the starting position of the time-domain resources used for cross-frequency domain resource transmission.

[0431] Furthermore, to reduce the number of indication bits for the number of time-domain resources indicated by the TDRA information, the number of time-domain resources or the number of repetitions corresponding to the frequency-domain resources of the third frequency-domain resources on each of the at least two second frequency-domain resources are the same. For example, the number of time-domain resources or the number of repetitions is based on a TDRA information indication (i.e., the number of time-domain resources or the number of repetitions is indicated only once) and applied to the time-domain resources corresponding to the third frequency-domain resources on each second frequency-domain resource. Another example is that the number of time-domain resources is based on information other than TDRA and applied to the time-domain resources corresponding to the third frequency-domain resources on each second frequency-domain resource.

[0432] For example, the terminal device determines the sixth information, which includes multiple first indication information and one second indication information. The multiple first indication information is used to indicate the starting position of the time domain resources for cross-frequency domain resource transmission, and the second indication information is used to indicate the number of time domain resources or the number of repetitions for cross-frequency domain resource transmission.

[0433] Step 203: The terminal device and the network device perform cross-frequency domain resource transmission on at least two second frequency domain resources.

[0434] After the terminal device or network device determines the first information and the second information, the terminal device or network device performs cross-frequency domain resource transmission on at least two second frequency domain resources.

[0435] It should be noted that the method provided in this application embodiment can be applied to uplink, downlink, terminal device to terminal device, network device to network device, etc., or it can be understood that transmission can refer to sending or receiving. That is, performing cross-frequency domain resource transmission can be sending cross-frequency domain resource transmission or performing cross-frequency domain resource sending, or receiving cross-frequency domain resource transmission or performing cross-frequency domain resource receiving.

[0436] For example, step 203 could be the network device sending downlink information to the terminal device via cross-frequency domain resource transmission on at least two second frequency domain resources. Alternatively, step 203 could also be the terminal device sending uplink information to the network device via cross-frequency domain resource transmission on at least two second frequency domain resources. Furthermore, step 203 could also be the terminal device sending uplink information to another terminal device via cross-frequency domain resource transmission on at least two second frequency domain resources. Finally, step 203 could also be the network device sending uplink information to another network device via cross-frequency domain resource transmission on at least two second frequency domain resources.

[0437] Optionally, when time-domain resources are directly indicated, the terminal device and network device perform cross-frequency domain resource transmission on the third frequency-domain resources determined by the first time-domain resources and at least two second frequency-domain resources. When time-domain resources are indirectly indicated, the terminal device and network device perform cross-frequency domain resource transmission on the third frequency-domain resources determined by the second and third time-domain resources and the ... fourth time-domain resources and the fifth time-domain resources and the third time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the seventh time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the seventh time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the seventh time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the seventh time-domain resources and the fifth time-domain resources and the sixth time-domain resources and the

[0438] Furthermore, after determining the first information and the second information, the terminal device maps the transmitted information to a time-frequency resource used for cross-frequency domain resource transmission, and performs cross-frequency domain resource transmission on that time-frequency resource.

[0439] It is understandable that for downlink data transmission, the sending side refers to the network device, and the receiving side refers to the terminal device. For uplink data transmission, the sending side refers to the terminal device, and the receiving side refers to the network device.

[0440] The following description uses cross-frequency domain resource transmission, specifically cross-CC transmission, as an example to illustrate the specific transmission method. It is understood that the specific transmission method can be network device configuration, pre-configuration, or pre-defined, etc., and is not limited here.

[0441] The calculation method for the transport block size (TB Size) varies depending on the specific transmission method and the resource mapping method. These methods are described below.

[0442] The first method calculates the TB Size based on the total available resources across the CC and maps it to physical resources using methods such as frequency first then time or time first then frequency.

[0443] Optionally, calculating the TB Size based on the total available resources across the CC can be understood as follows: the transport block size for cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource elements (REs) of the time-frequency resources used for cross-frequency domain resource transmission. The time-frequency resources used for cross-frequency domain resource transmission are based on a third frequency domain resource including at least two second frequency domain resources and the corresponding time domain resource. Alternatively, the first value can be understood as the total number of all resources scheduled for cross-frequency domain resource transmission.

[0444] Furthermore, for each CC in cross-frequency domain resource transmission, the available REs on each RB are calculated and multiplied by the number of RBs allocated to the corresponding CC to calculate the total available REs. Then, the available REs of all CCs in cross-frequency domain resource transmission are summed. Finally, the TBS is calculated by summing the available REs of all CCs.

[0445] For example, the expression for the available REs on each of the above RBs is as follows:

[0446]

[0447] Among them, N' RE This indicates the number of REs available for data transfer in each RB. This indicates the number of subcarriers in a PRB (e.g., 12, etc.). This indicates the number of symbols allocated to the physical downlink shared channel (PDSCH) within a time slot. This indicates the number of REs occupied by the demodulation reference signal (DMRS) on each PRB during the scheduling period. This represents system overhead, such as the overhead of other reference signals.

[0448] It should be noted that the determination method for the time and frequency resources in this part can refer to one of the determination methods for frequency domain resources in Part I and / or time domain resources in Part II, or any combination of the two methods. No specific limitation is made here.

[0449] Furthermore, the time-frequency resources used for cross-frequency domain resource transmission include third frequency domain resources on at least two second frequency domain resources and corresponding time domain resources. The mapping method adopted for cross-frequency domain resource transmission includes any of the following: frequency domain mapping followed by time domain mapping on the time-frequency resource; frequency domain mapping followed by time domain mapping on the time-frequency resource of each of the at least two second frequency domain resources and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the time-frequency resource; time domain mapping followed by frequency domain mapping on the time-frequency resource of each of the at least two second frequency domain resources and then cross-second frequency domain resource mapping, etc.

[0450] Optionally, the method of mapping the time-frequency resources first in the frequency domain and then in the time domain can also be understood as using multiple second frequency domain resources as a large bandwidth and performing the mapping first in the frequency domain and then in the time domain. Similarly, the method of mapping the time-frequency resources first in the time domain and then in the frequency domain can also be understood as using multiple second frequency domain resources as a large bandwidth and performing the mapping first in the time domain and then in the frequency domain.

[0451] Furthermore, cross-second frequency domain resource mapping can either begin by mapping second frequency domain resources with lower frequency ranges, and then map to second frequency domain resources with higher frequency ranges (i.e., starting from the lower frequency range), or it can begin by mapping second frequency domain resources with higher frequency ranges, and then map to second frequency domain resources with lower frequency ranges (i.e., starting from the higher frequency range). The specific approach is not limited here. Optionally, resources with lower frequency ranges can be those with smaller indices, and resources with higher frequency ranges can be those with larger indices.

[0452] For example, taking multiple second frequency domain resources as two CCs, the method of first mapping the frequency domain and then the time domain on the time-frequency resources can be as follows: Figure 11 As shown, CC#1 and CC#2 are treated as a whole, and a frequency domain mapping is performed first, followed by a time domain mapping.

[0453] For example, taking multiple second frequency domain resources as two CCs, the method of first frequency domain mapping, then time domain mapping, and then cross-second frequency domain resource mapping on the time-frequency resources of each of the at least two second frequency domain resources can be as follows: Figure 12 As shown. Specifically, in CC#1, frequency domain mapping is performed first, followed by time domain mapping. Then, in CC#2, frequency domain mapping is performed first, followed by time domain mapping.

[0454] For example, taking multiple second frequency domain resources as two CCs, the method of first mapping in the time domain and then mapping in the frequency domain on the time-frequency resources can be as follows: Figure 13 As shown, CC#1 and CC#2 are treated as a single unit, and a time-domain mapping followed by a frequency-domain mapping is performed.

[0455] For example, taking multiple second frequency domain resources as two CCs, the method of first time-domain mapping, then frequency-domain mapping, and then cross-second frequency domain resource mapping on the time-frequency resources of each of the at least two second frequency domain resources can also be as follows: Figure 13 As shown. Specifically, in CC#1, time-domain mapping is performed first, followed by frequency-domain mapping. Then, in CC#2, time-domain mapping is performed first, followed by frequency-domain mapping.

[0456] Optionally, interleaving or other steps can be performed before the above mapping; the specifics are not limited here.

[0457] Alternatively, the aforementioned cross-frequency domain resource transmission transmits the same redundant version (RV) on the time-frequency resource in each of the at least two second frequency domain resources. Or, it can be understood that, during bit selection, the selected bits are determined based on the number of transmittable bits on the time-frequency resource comprised of the third frequency domain resource and the corresponding time domain resource on the at least two second frequency domain resources used for cross-frequency domain resource transmission.

[0458] As can be seen, the first method can acquire more resources for a TB of transmission, reduce the transmission bitrate to achieve better coverage while keeping the throughput the same, or improve the transmission throughput performance while keeping the bitrate and coverage the same.

[0459] The second method involves calculating the TB size based on a reference value and mapping it separately to each CC in a multi-TB manner.

[0460] Optionally, the transport block size for cross-frequency domain resource transmission is determined based on a reference value (also known as a second value).

[0461] The reference value is at least one of the following:

[0462] 1. Preset values. For example, these could be RRC configuration values, DCI indicators, or pre-set values.

[0463] 2. The sum of the number of REs for time-frequency resources used for cross-frequency-domain resource transmission on each of at least two second-frequency-domain resources (or, as understood, the sum of the number of REs contained in the first transmission resource on each of at least two second-frequency-domain resources);

[0464] 3. The average number of resource elements (REs) of time-frequency resources used for cross-frequency-domain resource transmission on each of at least two second-frequency-domain resources, where the time-frequency resources include third-frequency-domain resources and corresponding time-domain resources on at least two second-frequency-domain resources; or, as understood, the average number = total number of scheduled resource REs / number of CCs.

[0465] 4. The number of resource elements (REs) of time-frequency resources used for cross-frequency-domain resource transmission on at least two reference second-frequency-domain resources (e.g., the number of REs of reference CC).

[0466] The reference CC can be a configured, predefined CC with the most scheduled resources, the CC with the fewest scheduled resources, the CC with the smallest index, the CC with the largest index, the CC with the smallest SCS, the CC with the largest SCS, etc. It is understood that the CC with the most scheduled resources, the CC with the fewest scheduled resources, the CC with the smallest index, the CC with the largest index, the CC with the smallest SCS, and the CC with the largest SCS refer to the CCs in at least two second-frequency-domain resources used for cross-frequency-domain resource transmission. It is understood that CC is merely an example and can be replaced with "second-frequency-domain resource" or "first-frequency-domain resource".

[0467] Furthermore, the redundant version RV transmitted on each of the at least two second frequency domain resources in the cross-frequency domain resource transmission is determined according to the RV pattern.

[0468] Optionally, the terminal device transmits the same or different RV versions of the same TB in ascending order of RV pattern on different CCs, such as {0,0,0,0}, {0,2,3,1}, {0,3,0,3}, etc.

[0469] For example, when time-domain repetition is configured, there are several cases for the transmission order of the RV pattern.

[0470] For example, taking the RV pattern as {0,2,3,1} as an example, Figure 14 As shown, the time domain of the CC with the lowest frequency range is used as the main axis, and the RV of other CCs in each time slot is used as a reference. That is, CC#0 is the CC with the lowest frequency range, and the RV pattern used for transmission on CC#0 is {0,2,3,1}. For the other CCs, the RV of each transmission in each time slot is determined with reference to the RV of the same time domain resource of CC#0, according to the RV pattern {0,2,3,1} from low to high. It can be seen that different CCs in the same time slot correspond to different RV versions.

[0471] For example, taking the RV pattern as {0,2,3,1} as an example, such as Figure 15 As shown, with the frequency domain of the first time slot as the main axis, other time slots on each CC take the RV of the first time slot of that CC as a reference. That is, the RV of the first time slot or the first transmission is {0,2,3,1} from low to high in the CC frequency domain range. Other time slots on each CC take the RV of the first time slot or the first transmission on that CC as a reference and transmit according to the RV pattern of {0,2,3,1}. It can be seen that different CCs have different RV versions within the same time slot.

[0472] For example, taking the RV pattern as {0,2,3,1} and the sequential mapping from the frequency domain to the time domain as an example, such as... Figure 16As shown, within the same time slot, the RV pattern for the four CCs is {0,2,3,1}. That is, the RV pattern for transmissions in each time slot or on each identical time-domain resource is {0,2,3,1}. Specifically, the RV for the first time slot or the first transmission, arranged from low to high frequency domain range, is {0,2,3,1}, and / or, the RV transmitted on the CC with the lowest frequency domain range in each subsequent time slot or on each identical time-domain resource is referenced to the RV transmitted on the CC with the highest frequency domain range in the previous time slot or on the previous time-domain resource. It can be understood that the RV of the CC with the lowest frequency domain range in each time slot or on each identical time-domain resource is the next RV in the RV pattern {0,2,3,1} of the CC with the highest frequency domain range in the previous time slot or on the previous time-domain resource. It can be seen that different CCs within the same time slot correspond to different RV versions.

[0473] For example, consider an RV pattern of {0,2,3,1} and a mapping sequence from the time domain to the frequency domain. Figure 17 As shown, the RVs (Representative RVs) are different in different time slots on the same CC (Common Control Center), meaning the RV pattern for each CC is {0,2,3,1}. This means the RV pattern for transmissions on each CC is {0,2,3,1}, with the lowest RV being {0,2,3,1}, and / or the RVs transmitted on each of the other CCs referencing the last transmitted RV of the previous CC. It can be understood that the first transmitted RV on each CC is the next RV in the RV pattern {0,2,3,1} of the last transmitted RV of the previous CC. Therefore, it can be seen that different time slots within the same CC correspond to different RV versions.

[0474] Optionally, the lowest and highest CC in the frequency domain range can also be the lowest and highest CC in the frequency range, or the lowest and highest CC in the index, or the smallest and largest CC in the index.

[0475] Optionally, the aforementioned transmission may also refer to the resources used for transmission. It is understood that the resource is scheduled for the transmission, but whether the transmission ultimately takes place is not specified here. That is, whether the transmission actually occurs or fails to occur due to preemption or other reasons does not affect the determination of RV.

[0476] It is understood that the RV pattern {0,2,3,1} described above is merely an example and can be replaced with any other RV pattern, such as {0,0,0,0} or {0,3,0,3}. Furthermore, when the number of transmissions exceeds 4, the RV should be determined cyclically according to the RV pattern for transmission. For example, in 8 transmissions, using {0,2,3,1} as an example, the RVs would be 02310231.

[0477] Optionally, the transmissions on each of the second frequency domain resources described above use the same HARQ process identifier. For example, the transmissions on each CC described above use the same HARQ process identifier. Optionally, when the transmission is a downlink transmission, the terminal device transmits HARQ information on each of the plurality of first frequency domain resources or a specific first frequency domain resource, or transmits HARQ information on each of at least two second frequency domain resources or a specific second frequency domain resource. Wherein, the specific first frequency domain resource and / or the specific second frequency domain resource is predefined, preconfigured, configured, determined according to rules, or indicated in the signaling that schedules the transmission. For example, the specific first frequency domain resource is the first frequency domain resource with the lowest frequency or the smallest index among the plurality of first frequency domain resources; the specific second frequency domain resource is the second frequency domain resource with the lowest frequency or the smallest index among at least two second frequency domain resources.

[0478] As can be seen, using different RV transmission methods can enable the receiving side to obtain soft combining gain, thereby allowing the transmitting side to increase the bit rate to obtain higher throughput, or to obtain a longer coverage distance without changing the bit rate.

[0479] In addition, to improve the stability of cross-frequency domain resource transmission, at least one of the following indicators can be introduced. Alternatively, these can be understood as indicators related to the conditions that transmission needs to meet.

[0480] Among them, at least one of the indicators includes: maximum power back-off (MPR), reference sensitivity, adjacent channel selectivity (ACS), inter-CC interference level, inter-band interference level, etc., without being limited here.

[0481] Optionally, the indicator can refer to the indicator that the entire cross-frequency domain resource transmission needs to meet, or it can refer to the indicator that at least two second frequency domain resources need to meet in the cross-frequency domain resource transmission, etc.

[0482] For example, an indicator refers to the metrics that must be met for virtual high-bandwidth transmission of CCs within any band. Another example is an indicator that must be met for virtual high-bandwidth transmission of CCs between any combination of bands.

[0483] Understandably, the values ​​corresponding to the indicators can be defined according to actual needs, and no specific restrictions are imposed here.

[0484] Of course, the continuity or discontinuity of at least two CCs in cross-frequency domain resource transmission can be defined separately. Different numbers of at least two CCs in cross-frequency domain resource transmission can also be defined separately. Different transmit antennas or transmission numbers on the transmitting side can also be defined separately. Optionally, the above situations can be combined. For example, defining separate indicators for continuous CCs and discontinuous CCs, for 2 CCs and 3 CCs, and for 1 antenna and 2 antennas, would require defining indicators for a total of 8 different situations.

[0485] For cross-CC transmission, new transmission metrics are introduced to limit and constrain relevant conditions, ensuring that the transmission method can achieve the expected benefits.

[0486] It should be noted that the various cases in the aforementioned branches can be combined arbitrarily, such as the various methods for time-domain resources, frequency-domain resources, transmission methods, TBS determination methods, and resource mapping methods. For example, time-domain resources can use the first method, and frequency-domain resources can use the first method. Or, for example, time-domain resources can use the second method, and frequency-domain resources can use the first method, and so on. Specific combinations are not limited here.

[0487] Based on the above scheme, on the one hand, the terminal device can determine the frequency domain resources used for transmission on the configured multiple first frequency domain resources according to the multiple frequency domain resource allocation FDRA information in the first information, and determine the frequency domain resources used for transmission in at least two second frequency domain resources among the multiple first frequency domain resources through at least one indicator bit in the second information, thereby enabling cross-frequency domain resource transmission on at least two second frequency domain resources. This not only integrates multiple fragmented frequency domain ranges to facilitate frequency domain scheduling of network devices, but also improves the throughput of the terminal device.

[0488] On the other hand, several new terminal device capabilities have been defined to enable terminal devices to report based on their own hardware and software capabilities, so as to achieve throughput gain by transmitting across multiple CCs within the supported range.

[0489] On the other hand, new frequency domain resource allocation methods and signaling were designed to support the scheduling and differentiation of cross-carrier transmission and traditional concurrent CA transmission methods, so that network devices can flexibly schedule different transmission methods according to their needs and obtain corresponding benefits in different scenarios.

[0490] On the other hand, by introducing reference time domain resources corresponding to the reference second frequency domain resources into the time domain resources, terminal devices can make reasonable use of time domain resources. This allows network devices to still allocate time domain resources efficiently and with reduced waste after the introduction of cross-CC transmission, thereby improving spectrum utilization efficiency.

[0491] On the other hand, considering the characteristics and specific constraints of cross-CC transmission, new transmission indicators are introduced to limit and constrain relevant conditions, ensuring that the transmission method can achieve the expected benefits.

[0492] Please see Figure 18 Another flowchart illustrating the communication method provided in this application embodiment includes steps 1801 to 1804. Steps 1804 can be executed by a communication device. "Communication device" can refer to the communication device itself (e.g., a terminal device and / or network device), a component within the communication device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the communication device. The communication device can be one of the aforementioned... Figures 1A to 1C The terminal device or network device in the communication system shown. The following description uses the example of execution by a communication device. The processing performed by a single execution entity in steps 1801 to 1804 can also be divided into execution by multiple execution entities, which can be logically and / or physically separated. For example, if the communication device is a network device, the processing performed by the communication device can be divided into execution by at least one of CU, DU, and RU.

[0493] Step 1801: The terminal device sends capability information to the network device. This step is optional.

[0494] Optionally, the terminal device sends capability information to the network device. Correspondingly, the network device receives the capability information sent by the terminal device.

[0495] The relevant descriptions of the ability information can be found in the preceding text. Figure 2 The description of step 201 in the illustrated embodiment will not be repeated here.

[0496] Step 1802: The network device and the terminal device transmit the first information.

[0497] Step 1802 may involve the network device sending first information to the terminal device. Correspondingly, the terminal device receives the first information sent by the network device.

[0498] Step 1802 can also involve the terminal device sending first information to the network device. Correspondingly, the network device receives the first information sent by the terminal device.

[0499] The following description uses the example of a network device sending first information to a terminal device as an example. In practical applications, the terminal device may also send first information to the network device, or multiple network devices may transmit first information between each other, or multiple terminal devices may transmit first information between each other, etc. The specifics are not limited here.

[0500] The first information includes a frequency domain resource allocation (FDRA) field, which is used to indicate a third frequency domain resource. The third frequency domain resource includes frequency domain resources on at least two of the second frequency domain resources among a plurality of first frequency domain resources. The third frequency domain resource is used for cross-frequency domain resource transmission.

[0501] In this embodiment, the first information can be carried in one or more of the following: RRC configuration, SCI, DCI, MAC CE, etc. For ease of description, DCI will be used as an example for the following description.

[0502] Optionally, this step can be understood as the network device sending a DCI to the terminal device, which is used to indicate the third frequency domain resources for cross-frequency domain resource transmission.

[0503] The aforementioned frequency domain resources can refer to a continuous segment of frequency domain resources. For example, frequency domain resources can refer to at least one of the following: RE, RB, interlace, subchannel, RB set, subcarrier, BWP, component carrier, carrier, frequency band, Hz, kHz, MHz, etc. It is understood that different frequency domain resources in this invention (such as frequency domain resources, first frequency domain resources, second frequency domain resources, third frequency domain resources, etc.) can all be one of the above, and their meanings can be the same or different. The following description will exemplify the first and second frequency domain resources as CC, and the third frequency domain resource as PRB.

[0504] Optionally, each of the plurality of first frequency domain resources contains at least one frequency domain cell, and there are several ways to index the at least one frequency domain cell. For example, the frequency domain cells on each of the first frequency domain resources are indexed independently. Another example is that the frequency domain cells on each of the at least two second frequency domain resources are indexed independently. Yet another example is that the frequency domain cells on the plurality of first frequency domain resources are indexed consecutively. Yet another example is that the frequency domain cells on at least two second frequency domain resources are indexed consecutively.

[0505] In one possible implementation, the PRB is independently indexed on each CC, and the mapping relationship between VRB and PRB is expressed as: VRB index = sum(PRBs in CC#X~N-1) + PRB index. Here, N is the number of CCs, CC#X is CC#0 or a reference CC, etc., and PRB index is the PRB index on CC#N. The reference CC can be a predefined CC, a pre-configured CC, the CC where the starting RB is located, or the CC where the first information is located, etc., and is not specifically limited here. Understandably, the mapped PRB index is determined based on the resource-allocated VRB index and the aforementioned mapping relationship.

[0506] In another possible implementation, the PRB is indexed continuously across CCs, and the mapping relationship between VRB and PRB is expressed as: VRB index = PRB index. Here, PRB index = sum(PRBs in CC#X~N-1) + PRB index in CC#N, where PRB index is the PRB index across CCs, and PRB index in CC#N is the PRB index within CC#N. It can be understood that the former is the PRB index for continuous indexing across CCs, and the latter is the PRB index for independent indexing within each CC. The relevant parameters can be found in the preceding description.

[0507] It is understood that the use of CC in this invention is merely an example, and the relevant description can be replaced by any of the following: first frequency domain resource, second frequency domain resource, BWP, band, cell, etc., which will not be elaborated here.

[0508] Furthermore, because the terminal device needs to align the number of bits in the information contained in the DCI with the network device to perform correct blind detection, the total number of FDRA information in the scheduling information is generally equal to the configured number of CCs to avoid the terminal device being unable to demodulate correctly due to uncertainty about the number of bits in the DCI. However, this limits scheduling flexibility and leads to high signaling overhead. In reality, the network device may not intend to schedule all carriers; it may only indicate the FDRA information of the carriers to be scheduled, which can ensure scheduling flexibility and reduce signaling overhead. However, in this case, the terminal device still needs to align with the network device on the number and / or number of bits of the FDRA information to ensure correct blind detection of downlink control information. The network device and the terminal device can also align the number and / or number of bits of the FDRA information / FDRA field based on the following methods.

[0509] In Method 1, multiple first frequency domain resources are all the configured CCs (actually, all the indicated CCs, since each has a corresponding FDRA). The scheduling information indicates the FDRA of each of the configured CCs and indicates that some of these CCs are second frequency domain resources for cross-carrier transmission.

[0510] In this approach, to ensure the terminal device knows the number of DCI bits for blind detection, all bits must be indicated. This method is costly and restrictive because each scheduling operation requires scheduling every configured CC.

[0511] Method 2: If multiple first frequency domain resources are indicated frequency domain resources (which may include all or some of the configured CCs), then the scheduling information indicates the FDRA of each CC that needs to be scheduled and indicates that some of these CCs are second frequency domain resources for cross-carrier transmission.

[0512] This approach saves signaling overhead, and combined with the scheme design here, it avoids situations where the terminal device is unaware of the number of DCI bits, ensuring that the DCI information can be correctly decoded. This is a preferred solution.

[0513] It's important to note that the CCs configured here can also be replaced with active CCs, resident CCs, etc., essentially referring to the CCs that the terminal device is using. This is because not all configured CCs are necessarily active; perhaps only a few CCs in the configuration will be active simultaneously, while others will remain inactive. In other words, the indicated CCs should be some or all of the configured / active / resident CCs.

[0514] For example, the number of bits allocated to the FDRA domain in frequency domain resource allocation is determined based on the sum of the number of frequency domain units contained in multiple first frequency domain resources, or based on the sum of the number of frequency domain units contained in at least two second frequency domain resources, or based on the sum of the number of frequency domain units contained in multiple first frequency domain resources and the number of frequency domain units contained in the frequency domain interval between multiple first frequency domain resources, or based on the sum of the number of frequency domain units contained in at least two frequency domain resources and the number of frequency domain units contained in the frequency domain interval between at least two frequency domain resources. For example, a terminal device can schedule multiple CCs as a large bandwidth, and the FDRA domain length is determined based on the sum of the total available bandwidth (excluding the frequency domain interval GAP), or based on the sum of the total bandwidth (including the frequency domain interval GAP).

[0515] For example, the number of bits and / or the number of FDRA fields contained in the first information are determined according to one or more of the following:

[0516] The third value is the sum of the number of frequency domain units contained in the fourth frequency domain resource and the number of frequency domain units contained in at least one fifth frequency domain resource. The fourth frequency domain resource is the second frequency domain resource in which the first information is located among at least two second frequency domain resources. The at least one fifth frequency domain resource is a frequency domain resource with a frequency range higher than the fourth frequency domain resource among the configured multiple frequency domain resources.

[0517] The fourth value is the sum of the third and fifth values. The fifth value is the number of frequency domain units contained in the first frequency domain interval, or the fifth value is the sum of the number of frequency domain units contained in the first frequency domain interval and the number of frequency domain units contained in the second frequency domain interval. The first frequency domain interval is the frequency domain interval between the fourth frequency domain resource and the fifth frequency domain resource that is adjacent to the frequency domain range / index. The second frequency domain interval is the frequency domain interval between at least two fifth frequency domain resources.

[0518] The sixth value is the fourth frequency domain resource, and the sum of the number of frequency domain resources with a frequency range higher than the fourth frequency domain resource among the configured multiple frequency domain resources;

[0519] The seventh value is the number of frequency domain units contained in each frequency domain resource, which is in the fourth frequency domain resource and in the number of frequency domain resources with a frequency range higher than the fourth frequency domain resource.

[0520] In this example, when the frequency domain resources indicated by FDRA include GAP, the resources in GAP are skipped or excluded when the terminal device determines TBS and mapping.

[0521] For example, for a CC in a TDD band, the number of bits in the FDRA field at which the DCI was detected is determined based on the total available bandwidth starting from that CC. It is understood that the available bandwidth can be either the number of available RBs or the configured number of RBs.

[0522] For example, for a CC in an FDD band, the number of bits in the FDRA field is determined based on the total available bandwidth starting from the corresponding UL CC, for the DCI detected on which DL CC was detected. It is understood that the available bandwidth can be either the number of available RBs or the configured number of RBs.

[0523] For example, for uplink and downlink decoupling (the number of UL CCs and DL CCs is different, i.e., not a one-to-one correspondence), the number of bits in the FDRA field of the DCI detected on which DL CC, is determined based on the total available bandwidth from which UL CC, depending on the DCI field indication, or RRC parameter configuration, etc.

[0524] Step 1803: The terminal device or network device determines the third or fourth information. Optionally.

[0525] It should be noted that, as mentioned above Figure 2 Similar to the embodiments shown, the method provided in this application can be applied to uplink, downlink, terminal device to terminal device, network device to network device, etc. For example, step 1803 may be the terminal device determining third or fourth information. As another example, step 1803 may also be the network device determining third or fourth information. The following description uses the terminal device determining third or fourth information as an example; in practical applications, the network device may also determine the third or fourth information, and this is not limited here.

[0526] Optionally, the frequency domain resources for transmission have been described above; the time domain resources for transmission will be described below. (As mentioned above...) Figure 2 The temporal resources in the illustrated embodiments are similar. In this embodiment, the temporal resources can be preset temporal resources, directly indicated temporal resources, indirectly indicated temporal resources, etc.

[0527] Optionally, in the case of direct instruction, the terminal device can directly determine the time-domain resources used for transmission through third information. Specifically, the terminal device determines the third information, which includes a Time-Domain Resource Allocation (TDRA) field, which indicates the first time-domain resources used for cross-frequency-domain resource transmission.

[0528] Optionally, in the case of indirect indication, the terminal device can indirectly determine the time-domain resources used for transmission through the fourth information. Specifically, the terminal device determines the fourth information, which includes at least one Time-Domain Resource Allocation (TDRA) field. The at least one TDRA field is used to indicate the second time-domain resource corresponding to the third frequency-domain resource on a reference second frequency-domain resource among at least two second frequency-domain resources.

[0529] The reference second frequency domain resource is at least one of the following among at least two second frequency domain resources: the second frequency domain resource with the smallest subcarrier spacing (SCS), the second frequency domain resource with the largest SCS, the second frequency domain resource where the signaling carrying the fourth information is located, and the second frequency domain resource with the smallest index among at least two second frequency domain resources. Furthermore, the third time domain resource corresponding to the third frequency domain resource on the second frequency domain resources other than the reference second frequency domain resource is aligned with the second time domain resource. For a description of the reference second frequency domain resource and related alignment, please refer to the foregoing. Figure 2 The descriptions in the illustrated embodiments will not be repeated here.

[0530] Step 1804: The terminal device and the network device perform cross-frequency domain resource transmission on the third frequency domain resources.

[0531] After the terminal device or network device determines the frequency domain resources for cross-frequency domain resource transmission, the terminal device and network device perform cross-frequency domain resource transmission on the third frequency domain resources.

[0532] It should be noted that the method provided in this application embodiment can be applied to uplink, downlink, terminal device to terminal device, network device to network device, etc., or it can be understood that transmission can refer to sending or receiving. That is, performing cross-frequency domain resource transmission can be sending cross-frequency domain resource transmission or performing cross-frequency domain resource sending, or receiving cross-frequency domain resource transmission or performing cross-frequency domain resource receiving.

[0533] For example, step 1804 could be a network device sending downlink information to a terminal device via cross-frequency domain resource transmission on third-frequency domain resources. Alternatively, step 1804 could be a terminal device sending uplink information to a network device via cross-frequency domain resource transmission on third-frequency domain resources. Another example is that step 1804 could be a terminal device sending uplink information to another terminal device via cross-frequency domain resource transmission on third-frequency domain resources. Yet another example is that step 1804 could be a network device sending uplink information to another network device via cross-frequency domain resource transmission on third-frequency domain resources.

[0534] Optionally, when time-domain resources are directly indicated, the terminal device and the network device perform cross-frequency domain resource transmission on third frequency domain resources and first time-domain resources on at least two second frequency domain resources. When time-domain resources are indirectly indicated, the terminal device and the network device perform cross-frequency domain resource transmission on third frequency domain resources and second time-domain resources, and on third time-frequency resources determined by the third time-domain resources, on at least two second frequency domain resources.

[0535] In addition, this embodiment may also involve resource mapping methods, calculation methods for the corresponding TB size of transmission, etc.

[0536] For example, the transport block size for cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource units (REs) of the time-frequency resources used for cross-frequency domain resource transmission. The time-frequency resources used for cross-frequency domain resource transmission are based on a third frequency domain resource including at least two second frequency domain resources and the corresponding time domain resource.

[0537] For example, time-frequency resources used for cross-frequency domain resource transmission include third frequency domain resources on at least two second frequency domain resources and corresponding time domain resources. The mapping method used for cross-frequency domain resource transmission includes any of the following: frequency domain mapping followed by time domain mapping on time-frequency resources; frequency domain mapping followed by time domain mapping on the time-frequency resources of each second frequency domain resource and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on time-frequency resources; and time domain mapping followed by frequency domain mapping on the time-frequency resources of each second frequency domain resource and then cross-second frequency domain resource mapping.

[0538] It is understandable that the mapping methods or TB size calculation methods mentioned above can be referenced in the preceding text. Figure 2 The descriptions in the illustrated embodiments are not repeated here.

[0539] Based on the above scheme, network devices can schedule multiple CCs as a large bandwidth, that is, schedule multiple CCs used for transmission through a single DCI. This not only integrates multiple fragmented frequency domain ranges to facilitate frequency domain scheduling by network devices, but also improves the throughput of terminal devices.

[0540] It is understood that any frequency domain resource determination method and any time domain resource determination method in any embodiment of the present invention can be used independently or in combination. For example, for any frequency domain resource determination method, its corresponding time domain resource determination method is not limited; the time domain resource determination method can be any time domain resource determination method protected in this application, or other time domain resource determination methods, without limitation. Similarly, for any time domain resource determination method, its corresponding frequency domain resource determination method is not limited; the frequency domain resource determination method can be any frequency domain resource determination method protected in this application, or other frequency domain resource determination methods, without limitation.

[0541] The communication method in the embodiments of this application has been described above. The communication device in the embodiments of this application is described below. Please refer to [link / reference]. Figure 19 This application provides an embodiment of the communication device 1900. This communication device 1900 can implement the functions of the communication device (which is a terminal device) in the above method embodiments, and therefore also achieves the beneficial effects of the above method embodiments. In this application embodiment, the communication device 1900 can be a communication device, or it can be an integrated circuit or component inside the communication device, such as a chip. The communication device 1900 includes a transceiver unit 1901. Alternatively, the communication device 1900 includes a transceiver unit 1901 and a processing unit 1902.

[0542] In one possible implementation, the communication device 1900 is as described above. Figures 1A to 17 In the illustrated embodiment, taking communication device 1900 as an example of a terminal device, the functions of each unit are as follows:

[0543] Processing unit 1902 is used to determine the first information and the second information;

[0544] Transceiver unit 1901 is used for cross-frequency domain resource transmission over at least two second frequency domain resources.

[0545] The first information includes multiple FDRA information, and the second information includes at least one indicator bit. The multiple FDRA information correspond to multiple first frequency domain resources respectively, and the at least one indicator bit is used to indicate that at least two second frequency domain resources among the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0546] Alternatively, the first information is used to indicate first transmission resources on a plurality of first frequency domain resources, and the second information includes at least one indication bit, which is used to indicate that the first transmission resources on at least two of the plurality of first frequency domain resources are used for cross-frequency domain resource transmission. Furthermore, the transceiver unit 1901 performs cross-frequency domain resource transmission on the first transmission resources on at least two second frequency domain resources. The first transmission resources may include at least one of the following: time domain resources and frequency domain resources.

[0547] Optionally, the transceiver unit 1901 is further configured to transmit capability information, which indicates at least one of the following: whether the terminal device supports cross-frequency domain resource transmission, the maximum number of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum bandwidth of each frequency domain resource among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the maximum frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission, the sum of the total bandwidth of multiple frequency domain resources supported by the terminal device for cross-frequency domain resource transmission and the frequency spacing of adjacent frequency domain resources among the multiple frequency domain resources, and the frequency band combination supported by the terminal device for cross-frequency domain resource transmission.

[0548] It should be noted that the frequency domain granularity of the aforementioned frequency domain resources, including the first frequency domain resource and the second frequency domain resource, is the same (also referred to as the first frequency domain granularity). However, the second frequency domain granularity of the frequency domain resources used by the first transmission resource is lower than the aforementioned first frequency domain granularity.

[0549] For example, the first frequency domain granularity includes CC, BWP, band, etc. The second frequency domain granularity includes PRB, RB, RE, RE set, subcarrier, etc.

[0550] Optionally, the processing unit 1902 is further configured to determine third information, the third information including at least one time-domain resource allocation (TDRA) information, the at least one TDRA information being used to indicate a first time-domain resource for cross-frequency-domain resource transmission; the transceiver unit is specifically configured to perform cross-frequency-domain resource transmission on a third frequency-domain resource on at least two second frequency-domain resources and on the first time-domain resource, the third frequency-domain resource being the frequency-domain resource on at least two second frequency-domain resources indicated by the FDRA information.

[0551] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, which indicates the first time-domain resources included in the first transmission resources for a plurality of first frequency-domain resources.

[0552] Optionally, the processing unit 1902 is further configured to determine fourth information, the fourth information including at least one time-domain resource allocation (TDRA) information, the at least one TDRA information being used to indicate the second time-domain resource corresponding to the third frequency-domain resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources; the third time-domain resource corresponding to the third frequency-domain resource on the second frequency-domain resources other than the reference second frequency-domain resource among at least two second frequency-domain resources, and aligned with the second time-domain resource; the transceiver unit is specifically configured to perform cross-frequency-domain resource transmission on the third frequency-domain resource and the second time-domain resource and the third time-frequency resource determined by the third time-domain resource on the at least two second frequency-domain resources.

[0553] Alternatively, the first information includes at least one time-domain resource allocation (TDRA) information, wherein the at least one TDRA information is used to indicate the second time-domain resource contained in the first transmission resource on the reference second frequency-domain resource among at least two second frequency-domain resources; the reference second frequency-domain resource is at least one of the following among at least two second frequency-domain resources: the second frequency-domain resource with the smallest subcarrier spacing (SCS), the second frequency-domain resource with the largest SCS, the second frequency-domain resource where the signaling carrying the fourth information is located, and the second frequency-domain resource with the smallest index among at least two second frequency-domain resources;

[0554] The third time-domain resource contained in the first transmission resource on at least two second frequency-domain resources, excluding the reference second frequency-domain resource, is aligned with the second time-domain resource.

[0555] Optionally, the processing unit 1902 is further configured to determine sixth information, which includes a plurality of first indication information and a second indication information. The plurality of first indication information is used to indicate the starting position of the time domain resources for cross-frequency domain resource transmission, and the second indication information is used to indicate the number of time domain resources and / or the number of repetitions for cross-frequency domain resource transmission. The plurality of first indication information corresponds one-to-one with the plurality of first frequency domain resources or at least two second frequency domain resources.

[0556] Alternatively, the first information may also include multiple first indication information and one second indication information, wherein the multiple first indication information is used to indicate the starting position of the time domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources, and the second indication information is used to indicate the number of time domain resources contained in the first transmission resources or the number of repetitions.

[0557] Optionally, the processing unit 1902 is further configured to determine seventh information, which includes a third indication information, which indicates the starting position of the time domain resources for cross-frequency domain resource transmission, the number of time domain resources, and / or the number of repetitions.

[0558] Alternatively, the first information may also include a third indication information, which indicates the starting position, the number of time-domain resources, and / or the number of repetitions of the time-domain resources contained in the first transmission resources on multiple first frequency domain resources or at least two second frequency domain resources.

[0559] Optionally, multiple FDRA information are carried in a downlink control information, with at least one indicator bit having a quantity of 1, and at least one indicator bit specifically used to indicate that multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0560] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information are carried in a downlink control information, and the number of at least one indicator bit is 1. The at least one indicator bit is specifically used to indicate that the first transmission resources on multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0561] Optionally, multiple FDRA information is carried in a downlink control information, and at least one indication bit includes multiple second indication bits. The multiple second indication bits correspond one-to-one with multiple first frequency domain resources. The multiple second indication bits are specifically used to indicate that at least two of the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0562] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information is carried in a downlink control information. At least one indication bit includes multiple second indication bits, which correspond one-to-one with the multiple first frequency domain resources. The multiple second indication bits are specifically used to indicate that the first transmission resources on at least two of the multiple first frequency domain resources are used for cross-frequency domain resource transmission.

[0563] Optionally, the values ​​of the second indicator bits corresponding to at least two second frequency domain resources are the same.

[0564] Optionally, multiple FDRA information are carried in multiple downlink control information, at least one indicator bit includes multiple third indicator bits, the multiple third indicator bits correspond one-to-one with multiple first frequency domain resources, the multiple third indicator bits correspond one-to-one with multiple FDRA information, and the values ​​of the second indicator bits corresponding to at least two second frequency domain resources are the same.

[0565] Alternatively, the first information includes multiple frequency domain resource allocation (FDRA) information, which are used to indicate the frequency domain resources included in the first transmission resources on multiple first frequency domain resources. The multiple FDRA information are respectively carried in multiple downlink control information. At least one indication bit includes multiple third indication bits, which correspond one-to-one with multiple first frequency domain resources and one-to-one with multiple FDRA information. The values ​​of the second indication bits corresponding to at least two second frequency domain resources are the same.

[0566] Optionally, the transport block size for cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource elements (REs) of the time-frequency resources used for cross-frequency domain resource transmission. The time-frequency resources used for cross-frequency domain resource transmission are based on a third frequency domain resource including at least two second frequency domain resources and the corresponding time domain resource.

[0567] Alternatively, the transport block size for cross-frequency domain resource transmission is determined according to a first value, which is the sum of the number of resource elements (REs) contained in the first transport resources on at least two second frequency domain resources.

[0568] Optionally, the time-frequency resources used for cross-frequency domain resource transmission include third frequency domain resources on at least two second frequency domain resources and corresponding time domain resources. The mapping method adopted for cross-frequency domain resource transmission includes any one of the following: frequency domain mapping followed by time domain mapping on the time-frequency resources; frequency domain mapping followed by time domain mapping on the time-frequency resources of each of the at least two second frequency domain resources, and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the time-frequency resources; and time domain mapping followed by frequency domain mapping on the time-frequency resources of each of the at least two second frequency domain resources, and then cross-second frequency domain resource mapping.

[0569] Alternatively, the mapping method used for cross-frequency domain resource transmission includes any of the following: frequency domain mapping followed by time domain mapping on the first transmission resource; frequency domain mapping followed by time domain mapping on the first transmission resource of each of at least two second frequency domain resources, and then cross-second frequency domain resource mapping; time domain mapping followed by frequency domain mapping on the first transmission resource; and time domain mapping followed by frequency domain mapping on the first transmission resource of each of at least two second frequency domain resources, and then cross-second frequency domain resource mapping.

[0570] Optionally, the transport block size for cross-frequency domain resource transmission is determined based on a reference value, which is at least one of the following:

[0571] The preset value (e.g., a configured, pre-configured, or predefined value), the sum of the number of REs for time-frequency resources used for cross-frequency-domain resource transmission on each of at least two second frequency-domain resources, the average number of resource element REs for time-frequency resources used for cross-frequency-domain resource transmission on each of at least two second frequency-domain resources, the time-frequency resources including third frequency-domain resources and corresponding time-domain resources on at least two second frequency-domain resources, and the number of resource element REs for time-frequency resources used for cross-frequency-domain resource transmission on reference second frequency-domain resources in at least two second frequency-domain resources.

[0572] Alternatively, the transport block size for cross-frequency domain resource transmission is determined based on a reference value, which is at least one of the following: a preset value (e.g., a configured, pre-configured, or predefined value), the sum of the number of REs contained in the first transport resource on each of at least two second frequency domain resources, the average number of REs contained in the first transport resource on each of at least two second frequency domain resources, and the number of REs contained in the first transport resource of a reference second frequency domain resource in at least two second frequency domain resources. [0573...

Claims

1. A communication method characterized by comprising: The method comprises: determining first information and second information, the first information comprising a plurality of frequency domain resource allocation (FDRA) information, the second information comprising at least one indication bit, the plurality of FDRA information respectively corresponding to a plurality of first frequency domain resources, and the at least one indication bit being used to indicate at least two second frequency domain resources in the plurality of first frequency domain resources for cross-frequency domain resource transmission; performing the cross-frequency domain resource transmission on the at least two second frequency domain resources.

2. The method of claim 1, wherein, Before the performing the cross-frequency domain resource transmission on the at least two second frequency domain resources, the method further comprises: sending capability information, the capability information being used to represent at least one of the following: whether a terminal device supports the cross-frequency domain resource transmission, a maximum number of frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, a maximum total bandwidth of frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, a maximum bandwidth of each frequency domain resource in the frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, a maximum frequency interval of adjacent frequency domain resources in the frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, a sum of a total bandwidth of the frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission and a frequency interval of adjacent frequency domain resources in the frequency domain resources, and a frequency band combination supported by the terminal device for the cross-frequency domain resource transmission.

3. The method according to claim 1 or 2, characterized in that, The plurality of FDRA information is carried in one downlink control information, the number of the at least one indication bit is 1, and the at least one indication bit is specifically used to indicate the plurality of first frequency domain resources for the cross-frequency domain resource transmission.

4. The method according to claim 1 or 2, characterized in that, The plurality of FDRA information is carried in one downlink control information, the at least one indication bit comprises a plurality of second indication bits, the plurality of second indication bits and the plurality of first frequency domain resources correspond to each other in a one-to-one manner, and the plurality of second indication bits are specifically used to indicate the at least two second frequency domain resources in the plurality of first frequency domain resources for the cross-frequency domain resource transmission.

5. The method of claim 4, wherein, The second indication bits corresponding to the at least two second frequency domain resources have the same value.

6. The method of claim 1 or 2, wherein, The plurality of FDRA information is respectively carried in a plurality of downlink control information, the at least one indication bit comprises a plurality of third indication bits, the plurality of third indication bits and the plurality of first frequency domain resources correspond to each other in a one-to-one manner, the plurality of third indication bits and the plurality of FDRA information correspond to each other in a one-to-one manner, and the second indication bits corresponding to the at least two second frequency domain resources have the same value.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: determining third information, the third information comprising at least one time domain resource allocation (TDRA) information, and the at least one TDRA information being used to indicate a first time domain resource for the cross-frequency domain resource transmission; the performing the cross-frequency domain resource transmission on the at least two second frequency domain resources comprises: performing the cross-frequency domain resource transmission on a third frequency domain resource on the at least two second frequency domain resources and the first time domain resource, the third frequency domain resource being a frequency domain resource on the at least two second frequency domain resources indicated by the FDRA information.

8. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: determining fourth information, the fourth information comprising at least one time domain resource allocation (TDRA) information, the at least one TDRA information being used to indicate a second time domain resource corresponding to a third frequency domain resource on a reference second frequency domain resource in the at least two second frequency domain resources; the reference second frequency domain resource being at least one of the following in the at least two second frequency domain resources: a second frequency domain resource with a smallest subcarrier spacing (SCS), a second frequency domain resource with a largest SCS, a second frequency domain resource on which signaling carrying the fourth information is located, a second frequency domain resource with a smallest index in the at least two second frequency domain resources; a third time domain resource corresponding to a third frequency domain resource on a second frequency domain resource other than the reference second frequency domain resource in the at least two second frequency domain resources being aligned with the second time domain resource; the performing the cross-frequency-domain-resource transmission on the at least two second frequency domain resources comprises: performing the cross-frequency-domain-resource transmission on the third frequency domain resource in the at least two second frequency domain resources and the third time-frequency resource determined by the second time domain resource and the third time domain resource.

9. The method according to any one of claims 1 to 8, characterized in that, a transport block size of the cross-frequency-domain-resource transmission is determined according to a first value, the first value being a sum of numbers of resource elements (REs) of time-frequency resources used for the cross-frequency-domain-resource transmission, the time-frequency resources used for the cross-frequency-domain-resource transmission comprising third frequency domain resources in the at least two second frequency domain resources and corresponding time domain resources.

10. The method according to any one of claims 1 to 9, characterized in that, the time-frequency resources used for the cross-frequency-domain-resource transmission comprise third frequency domain resources in the at least two second frequency domain resources and corresponding time domain resources, and a mapping manner used by the cross-frequency-domain-resource transmission comprises any one of the following: frequency domain mapping first and then time domain mapping on the time-frequency resources, frequency domain mapping first and then time domain mapping on the time-frequency resources of each second frequency domain resource in the at least two second frequency domain resources and then cross-second-frequency-domain-resource mapping, time domain mapping first and then frequency domain mapping on the time-frequency resources, time domain mapping first and then frequency domain mapping on the time-frequency resources of each second frequency domain resource in the at least two second frequency domain resources and then cross-second-frequency-domain-resource mapping.

11. The method according to any one of claims 1 to 8, characterized in that, a transport block size of the cross-frequency-domain-resource transmission is determined according to a reference value, the reference value being at least one of the following: a preset value; a sum of numbers of REs of time-frequency resources used for the cross-frequency-domain-resource transmission on each second frequency domain resource in the at least two second frequency domain resources; an average of numbers of REs of time-frequency resources used for the cross-frequency-domain-resource transmission on each second frequency domain resource in the at least two second frequency domain resources, the time-frequency resources comprising third frequency domain resources in the at least two second frequency domain resources and corresponding time domain resources; a number of REs of time-frequency resources used for the cross-frequency-domain-resource transmission on a reference second frequency domain resource in the at least two second frequency domain resources.

12. The method of any one of claim 11, wherein, a redundancy version (RV) of the cross-frequency-domain-resource transmission transmitted on each second frequency domain resource in the at least two second frequency domain resources is determined according to an RV pattern.

13. The method according to any one of claims 1 to 12, characterized in that, The plurality of FDRA information is used to indicate a frequency domain resource starting position of a third frequency domain resource on the plurality of first frequency domain resources or on the at least two second frequency domain resources, and a number of frequency domain resources of the third frequency domain resource on each of the at least two second frequency domain resources is the same.

14. The method of claim 13, wherein, The method further includes: determining sixth information, the sixth information including a plurality of first indication information and a second indication information, the plurality of first indication information being used to indicate a time domain resource starting position of the cross-frequency domain resource transmission, and the second indication information being used to indicate a number of time domain resources and / or a number of repetitions of the cross-frequency domain resource transmission, wherein the plurality of first indication information corresponds to the plurality of first frequency domain resources or the at least two second frequency domain resources one by one.

15. The method according to any one of claims 1 to 6, 9 to 14, characterized in that, A bit number of an FDRA field included in the first information and / or a number of the FDRA fields is determined according to one or more of the following: a third value, the third value being a sum of a number of frequency domain units included in a fourth frequency domain resource and a number of frequency domain units included in at least one fifth frequency domain resource, the fourth frequency domain resource being a second frequency domain resource in which the first information is located among the at least two second frequency domain resources, and the at least one fifth frequency domain resource being a frequency domain resource in the configured plurality of frequency domain resources and having a frequency range higher than that of the fourth frequency domain resource; a fourth value, the fourth value being a sum of the third value and a fifth value, the fifth value being a number of frequency domain units included in a first frequency domain interval, or the fifth value being a sum of a number of frequency domain units included in the first frequency domain interval and a number of frequency domain units included in a second frequency domain interval, the first frequency domain interval being a frequency domain interval between the fourth frequency domain resource and a fifth frequency domain resource adjacent in frequency range / index, and the second frequency domain interval being a frequency domain interval between at least two fifth frequency domain resources; a sixth value, the sixth value being a sum of the fourth frequency domain resource and the number of the frequency domain resources in the configured plurality of frequency domain resources and having a frequency range higher than that of the fourth frequency domain resource; a seventh value, the seventh value being a number of frequency domain units included in each of the frequency domain resources in the fourth frequency domain resource and the number of the frequency domain resources in the configured plurality of frequency domain resources and having a frequency range higher than that of the fourth frequency domain resource.

16. A method of communication, comprising: The method includes: receiving first information, the first information including a frequency domain resource allocation (FDRA) field, the FDRA field being used to indicate a third frequency domain resource, the third frequency domain resource including frequency domain resources on at least two second frequency domain resources in a plurality of first frequency domain resources, and the third frequency domain resource being used for cross-frequency domain resource transmission; performing the cross-frequency domain resource transmission on the third frequency domain resource.

17. The method of claim 16, wherein, Each of the first frequency domain resources comprises at least one frequency domain unit, the frequency domain units on each of the first frequency domain resources are independently indexed, or the frequency domain units on each of the at least two second frequency domain resources are independently indexed, or the frequency domain units on the plurality of first frequency domain resources are continuously indexed, or the frequency domain units on the at least two second frequency domain resources are continuously indexed.

18. The method of claim 16 or 17, wherein, The number of bits of the frequency domain resource allocation (FDRA) field included in the first information is determined according to a first value or a second value, the first value being a sum of a number of frequency domain units included in a fourth frequency domain resource and a number of frequency domain units included in at least one fifth frequency domain resource, the fourth frequency domain resource being a second frequency domain resource in which the first information is located among the at least two second frequency domain resources, the at least one fifth frequency domain resource being a frequency domain resource having a frequency range higher than that of the fourth frequency domain resource among the plurality of configured frequency domain resources; and the second value being a sum of the first value and a third value, the third value being a number of frequency domain units included in a first frequency domain interval, or the third value being a sum of a number of frequency domain units included in the first frequency domain interval and a number of frequency domain units included in a second frequency domain interval, the first frequency domain interval being a frequency domain interval between the fourth frequency domain resource and a fifth frequency domain resource adjacent in frequency domain range / index to the fourth frequency domain resource, and the second frequency domain interval being a frequency domain interval between at least two fifth frequency domain resources.

19. The method of any one of claims 16-18, wherein, The method further comprises:

20. The method of any one of claims 16-19, wherein, determining third information including a time domain resource allocation (TDRA) field, the TDRA field being used to indicate a first time domain resource for the cross-frequency domain resource transmission; the performing of the cross-frequency domain resource transmission on the at least two second frequency domain resources comprises: performing the cross-frequency domain resource transmission on a third frequency domain resource on the at least two second frequency domain resources and the first time domain resource, the third frequency domain resource being a third frequency domain resource on the at least two second frequency domain resources indicated by the FDRA field. The method further comprises:

21. The method of any one of claims 16-19, wherein, determining fourth information including at least one TDRA field, the at least one TDRA field being used to indicate a second time domain resource corresponding to a third frequency domain resource on a reference second frequency domain resource among the at least two second frequency domain resources; the reference second frequency domain resource being at least one of the following among the at least two second frequency domain resources: a second frequency domain resource having a smallest subcarrier spacing (SCS), a second frequency domain resource having a largest SCS, a second frequency domain resource in which signaling carrying the fourth information is located, and a second frequency domain resource having a smallest index among the at least two second frequency domain resources. ​ A third time domain resource corresponding to a third frequency domain resource on a second frequency domain resource other than the reference second frequency domain resource among the at least two second frequency domain resources is aligned with the second time domain resource; The performing the cross-frequency domain resource transmission on the at least two second frequency domain resources comprises: The performing the cross-frequency domain resource transmission on the third frequency domain resource among the at least two second frequency domain resources and the third time-frequency resource determined by the second time domain resource and the third time domain resource.

22. The method of any one of claims 16-21, wherein, A transport block size of the cross-frequency domain resource transmission is determined according to a first value, the first value being a sum of resource element (RE) quantities of time-frequency resources used for the cross-frequency domain resource transmission, the time-frequency resources used for the cross-frequency domain resource transmission being determined according to the third frequency domain resource among the at least two second frequency domain resources and the corresponding time domain resource.

23. The method according to any one of claims 16 to 22, characterized in that, The time-frequency resources used for the cross-frequency domain resource transmission include the third frequency domain resource among the at least two second frequency domain resources and the corresponding time domain resource, and a mapping manner adopted by the cross-frequency domain resource transmission includes any one of the following: frequency domain mapping first and then time domain mapping on the time-frequency resources, frequency domain mapping first and then time domain mapping on the time-frequency resources of each second frequency domain resource and then cross-second frequency domain resource mapping, time domain mapping first and then frequency domain mapping on the time-frequency resources, time domain mapping first and then frequency domain mapping on the time-frequency resources of each second frequency domain resource and then cross-second frequency domain resource mapping.

24. The method according to any one of claims 16 to 23, characterized in that, Before the performing the cross-frequency domain resource transmission on the third frequency domain resource, the method further comprises: sending capability information, the capability information being used to indicate at least one of the following: whether the terminal device supports the cross-frequency domain resource transmission, a maximum number of frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, a maximum total bandwidth of the frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, a maximum bandwidth of each frequency domain resource in the frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, a maximum frequency interval of adjacent frequency domain resources in the frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, a sum of the total bandwidth of the frequency domain resources and the frequency interval of the adjacent frequency domain resources in the frequency domain resources supported by the terminal device for the cross-frequency domain resource transmission, and a frequency band combination supported by the terminal device for the cross-frequency domain resource transmission.

25. A method of communication, comprising: The method comprises: sending first information and second information, the first information including a plurality of frequency domain resource allocation (FDRA) information, and the second information including at least one indication bit, the plurality of FDRA information respectively corresponding to a plurality of first frequency domain resources, and the at least one indication bit being used to indicate that at least two second frequency domain resources in the plurality of first frequency domain resources are used for cross-frequency domain resource transmission; configuring or instructing the terminal device to perform the cross-frequency domain resource transmission on the at least two second frequency domain resources.

26. A method of communication, comprising: The method comprises: transmitting first information, the first information comprising a frequency domain resource allocation (FDRA) field, the FDRA field being used for indicating third frequency domain resources, the third frequency domain resources comprising frequency domain resources on at least two second frequency domain resources in a plurality of first frequency domain resources, the third frequency domain resources being used for cross-frequency domain resource transmission; configuring or indicating the terminal device to perform the cross-frequency domain resource transmission on the third frequency domain resources.

27. A communications device, characterized by comprising a module for performing the method of any one of claims 1-26.

28. A communications device, characterized by comprising at least one processor configured to perform the method of any one of claims 1-26.

29. A computer-readable storage medium, characterized in that, The computer program or instructions stored in the computer readable storage medium, when executed by the communication device, implement the method of any one of claims 1-26.

30. A computer program product, characterised in that, comprising a computer program or instructions, when executed by a computer, implement the method of any one of claims 1-26.

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