Communication method, apparatus, and system

Abstract

The present application relates to the technical field of communications, and discloses a communication method, apparatus, and system, for use in solving the problem of large loss of uplink coverage and capacity caused by a small uplink transmission proportion in existing time division duplex (TDD) modes. The method comprises: receiving first configuration information from a network device, the first configuration information being used for configuring a plurality of uplink carriers, and the plurality of uplink carriers being located in a same frequency band; and communicating with the network device on the basis of the plurality of uplink carriers.

Description

Communication method, device and system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 31, 2024, with application number 202410148688.1 and application name “Communication Methods, Devices and Systems”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technologies, and in particular to communication methods, devices, and systems. Background Art

[0003] With the continuous emergence of new services such as high-definition video and augmented reality (AR) / virtual reality (VR), the demand for wireless data traffic is growing rapidly. In order to meet the growing demand for wireless transmission, wireless communication technology needs to evolve further.

[0004] To increase wireless network capacity and transmission rates, existing technologies have proposed the TDD mode, which offers greater bandwidth. However, in TDD, uplink and downlink carriers are time-division multiplexed. Due to the small uplink transmission ratio and limited bandwidth, this results in significant losses in uplink coverage and capacity. Therefore, improving uplink coverage and capacity is an urgent issue. Summary of the Invention

[0005] The embodiments of the present application provide a communication method, apparatus, and system for solving the problem that in the existing TDD mode, uplink transmission accounts for a small proportion, resulting in a large loss of uplink coverage and capacity.

[0006] In a first aspect, a communication method is provided. The method can be executed by a terminal device, or by a component of the terminal device, such as a processor, chip, or chip system of the terminal device, or by a logic module or software capable of implementing all or part of the terminal device's functions. For example, in the case where the method can be executed by a terminal device, the method includes: receiving first configuration information from a network device, the first configuration information being used to configure multiple uplink carriers, the multiple uplink carriers being located in the same frequency band, and communicating with the network device based on the multiple uplink carriers.

[0007] In the above technical solution, since the terminal device can receive the first configuration information of the network device, and the first configuration information is used to configure multiple uplink carriers in the same frequency band, compared with the existing configuration of one uplink carrier in one frequency band, the bandwidth for the terminal device to transmit uplink data is increased by increasing the number of uplink carriers, and the opportunity for uplink transmission is increased, thereby improving the uplink coverage and capacity, and thus being able to support low-latency services, services with large uplink data traffic requirements, and services with high uplink coverage requirements.

[0008] In combination with the first aspect above, in a possible implementation manner, the multiple uplink carriers support simultaneous signal transmission, further increasing the bandwidth for transmitting uplink data.

[0009] In combination with the first aspect above, in a possible implementation, the multiple uplink carriers support time-division transmission of signals, so that the terminal device can flexibly select transmission resources for transmitting signals.

[0010] In conjunction with the first aspect above, in one possible implementation, the frequency domain position of the downlink carrier of the terminal device overlaps with the frequency domain position of the first uplink carrier, where the first uplink carrier is one of multiple uplink carriers. In this way, because the frequency domain resources used by the uplink and downlink are the same, the consistency of the uplink and downlink can be guaranteed.

[0011] In combination with the above-mentioned first aspect, in a possible implementation method, the time domain resources of the above-mentioned downlink carrier and the time domain resources of the first uplink carrier are time-division limited, and the frequency domain resources of the downlink carrier and the frequency domain resources of the first uplink carrier are time-division limited, so that the terminal device can make full use of all transmission resources when transmitting each data stream, thereby improving transmission efficiency.

[0012] In conjunction with the first aspect above, in one possible implementation, the frequency domain position of the downlink carrier and the frequency domain position of the second uplink carrier do not overlap, and the second uplink carrier is a carrier other than the first uplink carrier among the multiple uplink carriers. In this way, configuring an uplink carrier whose frequency domain position does not overlap with the downlink carrier allows the uplink carrier to continuously transmit uplink signals, thereby increasing the bandwidth for transmitting uplink data.

[0013] In conjunction with the first aspect above, in one possible implementation, a frequency domain interval exists between the downlink carrier and the second uplink carrier in the frequency domain, where the size of the frequency domain interval is predefined; alternatively, the size of the frequency domain interval is related to the capabilities of the terminal device. In this way, by setting a frequency domain interval between the uplink and downlink carriers, uplink and downlink interference that affects transmission efficiency can be avoided.

[0014] In combination with the first aspect above, in a possible implementation, the downlink carrier and the second uplink carrier support simultaneous signal transmission, so that the terminal device can efficiently utilize all bandwidths.

[0015] In a second aspect, a communication method is provided. The method can be executed by a network device, or by a component of the network device, such as a processor, chip, or chip system of the network device, or by a logic module or software that implements all or part of the network device's functions. For example, in the case where the method can be executed by the network device, the method includes: determining first configuration information, the first configuration information being used to configure multiple uplink carriers, the multiple uplink carriers being located in the same frequency band, and sending the first configuration information to a terminal device.

[0016] In the above technical solution, since the first configuration information sent by the network device to the terminal device is used to configure multiple uplink carriers in the same frequency band, compared with the existing configuration of one uplink carrier in one frequency band, the bandwidth for the terminal device to transmit uplink data is increased by increasing the number of uplink carriers, and the opportunity for uplink transmission is increased, thereby improving the uplink coverage and capacity, and thus being able to support low-latency services, services with large uplink data traffic requirements, and services with high uplink coverage requirements.

[0017] In combination with the second aspect, in a possible implementation manner, the multiple uplink carriers support simultaneous signal transmission, further increasing the bandwidth for transmitting uplink data.

[0018] In combination with the second aspect above, in a possible implementation, the multiple uplink carriers support time-division transmission of signals, so that the terminal device can flexibly select transmission resources for transmitting signals.

[0019] In conjunction with the second aspect above, in one possible implementation, the frequency domain position of the downlink carrier of the terminal device overlaps with the frequency domain position of the first uplink carrier, where the first uplink carrier is one of multiple uplink carriers. In this way, because the frequency domain resources used by the uplink and downlink are the same, the consistency of the uplink and downlink can be guaranteed.

[0020] In combination with the above-mentioned second aspect, in a possible implementation method, the time domain resources of the above-mentioned downlink carrier and the time domain resources of the first uplink carrier are time-division limited, and the frequency domain resources of the downlink carrier and the frequency domain resources of the first uplink carrier are time-division limited, so that the terminal device can make full use of all transmission resources when transmitting each data stream, thereby improving transmission efficiency.

[0021] In conjunction with the second aspect above, in one possible implementation, the frequency domain position of the downlink carrier and the frequency domain position of the second uplink carrier do not overlap, and the second uplink carrier is a carrier other than the first uplink carrier among the multiple uplink carriers. In this way, configuring an uplink carrier whose frequency domain position does not overlap with the downlink carrier allows the uplink carrier to continuously transmit uplink signals, thereby increasing the bandwidth for transmitting uplink data.

[0022] In conjunction with the second aspect above, in one possible implementation, a frequency domain interval exists between the downlink carrier and the second uplink carrier in the frequency domain, and the size of the frequency domain interval is predefined; alternatively, the size of the frequency domain interval is related to the capabilities of the terminal device. In this way, by setting a frequency domain interval between the uplink and downlink carriers, uplink and downlink interference that affects transmission efficiency can be avoided.

[0023] In combination with the second aspect above, in a possible implementation, the downlink carrier and the second uplink carrier support simultaneous signal transmission, so that the terminal device can efficiently utilize all bandwidths.

[0024] In a third aspect, a communication method is provided. The method can be executed by a terminal device, or by a component of the terminal device, such as a processor, chip, or chip system of the terminal device, or by a logic module or software capable of implementing all or part of the terminal device's functions. Taking the method as an example where the method can be executed by the terminal device, the method includes: receiving second configuration information from a network device, the second configuration information being used to reconfigure a first time domain resource into a second time domain resource, the first time domain resource and the second time domain resource having different transmission directions; and communicating with the network device based on the second time domain resource.

[0025] In the above technical solution, since the terminal device can receive the second configuration information of the network device, and the second configuration information is used to reconfigure the first time domain resource into the second time domain resource with a different transmission direction, the downlink time domain resource can be configured as the uplink time domain resource when the uplink transmission delay requirement of the terminal device is low, or the uplink data traffic requirement is large, or the uplink coverage requirement is high, thereby improving the bandwidth of the terminal device for transmitting uplink data, increasing the opportunity for uplink transmission, and thus improving the uplink coverage and capacity, and thus being able to support low-latency services, services with large uplink data traffic requirements, and services with high uplink coverage requirements.

[0026] In conjunction with the third aspect, in one possible implementation, the first time domain resource is a time domain resource other than a public time domain resource, and the public time domain resource is used to receive broadcast signals. Thus, when reconfiguring the time domain resources, the public time domain resource is not reconfigured, thereby ensuring that the terminal device can receive the broadcast signal from the network device.

[0027] In combination with the third aspect above, in a possible implementation manner, the time domain resource is a frame, a subframe, a time slot, or a symbol.

[0028] In a fourth aspect, a communication method is provided. The method can be performed by a network device, or by a component of the network device, such as a processor, chip, or chip system of the network device, or by a logic module or software capable of implementing all or part of the network device's functions. Taking the method as an example where the method can be performed by the network device, the method includes: determining second configuration information, the second configuration information being used to reconfigure a first time domain resource into a second time domain resource, the first time domain resource and the second time domain resource having different transmission directions, and sending the second configuration information to a terminal device.

[0029] In the above technical solution, since the second configuration information sent by the network device to the terminal device is used to reconfigure the first time domain resource into the second time domain resource with a different transmission direction, the downlink time domain resource is configured as the uplink time domain resource when the uplink transmission delay requirement of the terminal device is low, or the uplink data traffic requirement is large, or the uplink coverage requirement is high, the bandwidth of the terminal device for transmitting uplink data is improved, the opportunity for uplink transmission is increased, thereby improving the uplink coverage and capacity, and then being able to support low-latency services, services with large uplink data traffic requirements, and services with high uplink coverage requirements.

[0030] In conjunction with the fourth aspect, in one possible implementation, the first time domain resource is a time domain resource other than a public time domain resource, and the public time domain resource is used to receive broadcast signals. In this manner, when the terminal device reconfigures the time domain resource, the public time domain resource is not reconfigured, thereby ensuring that the terminal device can receive the broadcast signal from the network device.

[0031] In combination with the fourth aspect above, in a possible implementation manner, the time domain resource is a frame, a subframe, a time slot, or a symbol.

[0032] In a fifth aspect, a communication device is provided for implementing the various methods described above. The communication device includes modules, units, or means corresponding to the methods described above. The modules, units, or means may be implemented in hardware, software, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules or units corresponding to the functions described above.

[0033] In some possible designs, the communication device may include a processing module and a transceiver module. The transceiver module, also referred to as a transceiver unit, is configured to implement the transmitting and / or receiving functions described in any of the above aspects and any possible implementations thereof. The transceiver module may be comprised of a transceiver circuit, a transceiver, a transceiver, or a communication interface. The processing module may be configured to implement the processing functions described in any of the above aspects and any possible implementations thereof.

[0034] In some possible designs, the transceiver module includes a sending module and a receiving module, which are respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementation methods.

[0035] In a sixth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes any of the methods described above.

[0036] In the seventh aspect, a communication device is provided, comprising: a processor and a communication interface; the communication interface is used to communicate with a module outside the communication device; the processor is used to execute a computer program or instruction so that the communication device executes any of the methods described above.

[0037] In an eighth aspect, a communication device is provided, comprising: at least one processor; the processor is configured to execute a computer program or instruction stored in a memory, so that the communication device performs any of the methods described above. The memory may be coupled to the processor or may be independent of the processor.

[0038] Among them, the communication device in the above-mentioned fifth aspect to the above-mentioned eighth aspect can be: the terminal device in any aspect or any implementation of the above-mentioned first aspect or third aspect, or a device including the above-mentioned terminal device, or a device included in the above-mentioned terminal device, such as a chip; the communication device in the above-mentioned fifth aspect to the above-mentioned eighth aspect can be: the network device in any aspect or any implementation of the above-mentioned second aspect or fourth aspect, or a device including the above-mentioned network device, or a device included in the above-mentioned network device, such as a chip.

[0039] In the ninth aspect, a computer-readable storage medium is provided, which stores a computer program or instruction. When the computer program or instruction is run on a communication device, the communication device can execute any of the above aspects or any of its implementation methods.

[0040] In a tenth aspect, a computer program product comprising instructions is provided, which, when executed on a communication device, enables the communication device to execute the method of any of the above aspects or any of its implementations.

[0041] In the eleventh aspect, a communication device is provided (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the functions involved in any of the above aspects or any of its implementation methods.

[0042] In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

[0043] In some possible designs, when the communication device is a chip system, it can be composed of a chip, or it can include a chip and other discrete devices.

[0044] It can be understood that when the communication device provided in any one of the sixth to ninth aspects is a chip, the above-mentioned sending action / function can be understood as output, and the above-mentioned receiving action / function can be understood as input.

[0045] In the twelfth aspect, a communication system is provided, which includes a terminal device for executing the method described in the first or third aspect above, and a network device for executing the method described in the second or fourth aspect above.

[0046] Among them, the technical effects brought about by any implementation method in the fifth to twelfth aspects can refer to the technical effects brought about by the corresponding implementation methods in the first to fourth aspects, and will not be repeated here.

[0047] It should be noted that various possible implementations of any of the above aspects can be combined under the premise that there is no contradiction between the solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] FIG1 is a schematic diagram of uplink and downlink carriers in various duplex modes provided in the related art;

[0049] FIG2 is a schematic diagram of a frame ratio of uplink and downlink carriers in a TDD mode provided in the related art;

[0050] FIG3 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application;

[0051] FIG4 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0052] FIG5 is a flow chart of a communication method provided in an embodiment of the present application;

[0053] FIG6 is a schematic diagram of frequency domain positions of uplink and downlink carriers in a communication method provided by an embodiment of the present application;

[0054] FIG7 is a schematic diagram of uplink and downlink carriers of a communication method provided in an embodiment of the present application;

[0055] FIG8 is a flow chart of another communication method provided in an embodiment of the present application;

[0056] FIG9 is a schematic diagram of a frame configuration of a communication method provided in an embodiment of the present application;

[0057] FIG10 is a schematic diagram of frame configuration according to another communication method provided in an embodiment of the present application;

[0058] FIG11 is a schematic diagram of frame configuration according to another communication method provided in an embodiment of the present application;

[0059] FIG12 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0060] In the description of this application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0061] In the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and / or c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or plural.

[0062] In addition, to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0063] In the embodiments of this application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0064] It will be understood that the “embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, throughout the specification, the various embodiments do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It will be understood that in the various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0065] It is understood that some optional features in the embodiments of the present application may, in certain scenarios, be implemented independently of other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects. They may also be combined with other features as needed in certain scenarios. Accordingly, the devices provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

[0066] In this application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In the various embodiments of this application, unless otherwise specified and there is no logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships. The following description of the embodiments of this application does not constitute a limitation on the scope of protection of this application.

[0067] With the continuous emergence of new services such as high-definition video and AR / VR, the demand for wireless data traffic is rapidly increasing. To meet this growing demand for wireless transmission, wireless communication technology needs to evolve further to increase network capacity and transmission rates. Further exploitation of frequency resources for wireless communication is a crucial aspect of this evolution.

[0068] Related technologies include TDD, frequency division duplex (FDD), supplementary uplink (SUL), and supplementary downlink (SDL). As shown in Figure 1, in a TDD cell, the center frequencies of the uplink and downlink carriers are aligned, and they are used in a time-division manner through frame configuration in the time domain. In an FDD cell, the center frequencies of the uplink and downlink carriers are not aligned. The SUL carrier can only be an uplink carrier and must be used together with the uplink and downlink carriers of FDD or TDD. In an SDL cell, there is only an SDL carrier.

[0069] Table 1

[0070] It should be noted that Table 1 lists the corresponding new radio (NR) operating frequency bands in each duplex mode, as well as the corresponding uplink operating frequency bands and downlink operating frequency bands in each NR operating frequency band.

[0071] For next-generation 6G communication technology, the potential new spectrum available is U6G (6425MHz–7125MHz). Because this spectrum corresponds to a high frequency band, the corresponding duplex mode is TDD. However, in TDD mode, the uplink and downlink carriers are time-division multiplexed in transmission resources. As shown in Figure 2, the proportion of uplink transmission resources (such as U) is usually smaller than that of downlink transmission resources (such as D). In addition, the U6G frequency band is relatively high, resulting in significant uplink coverage loss and low capacity. Therefore, it cannot well support services that are sensitive to latency, have high uplink data traffic, and have high uplink coverage requirements.

[0072] In order to solve the problem that the uplink transmission in the existing TDD mode accounts for a small proportion and cannot well support services with low latency and high uplink traffic requirements, the embodiments of the present application provide relevant communication methods, devices and systems. On the one hand, the uplink transmission bandwidth is improved by configuring multiple uplink carriers in one frequency band. Specifically, reference may be made to the embodiment shown in Figure 5 below. On the other hand, the uplink transmission bandwidth is improved by reconfiguring the time domain resources of one transmission direction to the time domain resources of another transmission direction. Specifically, reference may be made to the embodiment shown in Figure 8 below. The following is a detailed description of the implementation of the embodiments of the present application in conjunction with the drawings in the specification.

[0073] In order to facilitate understanding of the embodiments of the present application, the following explanations are made before introducing the embodiments of the present application.

[0074] 1. In the embodiment of the present application, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information (such as the indication information below) is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein the other information and the information to be indicated have an association relationship. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can be achieved by means of the arrangement order of each piece of information agreed in advance (such as specified in the protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each piece of information can also be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.

[0075] In addition, the specific indication method can also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. The specific details of the various indication methods can be referred to the prior art and will not be repeated herein. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, there may be a situation where the indication methods for different information are different. In the specific implementation process, the required indication method can be selected according to specific needs. The embodiment of the present application does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0076] It should be understood that the information to be indicated can be sent as a whole, or divided into multiple sub-information and sent separately, and the sending period and / or sending timing of these sub-information can be the same or different. The specific sending method is not limited in the embodiment of the present application. Among them, the sending period and / or sending timing of these sub-information can be predefined, for example, predefined according to a protocol, or can be configured by the transmitting device by sending configuration information to the receiving device. Among them, the configuration information can, for example, but not limited to, include radio resource control signaling, such as radio resource control (RRC) signaling, medium access control (MAC) layer signaling, physical layer signaling, or downlink control information (DCI) or a combination of at least two of them.

[0077] 2. "Pre-definition" or "pre-configuration" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, a terminal device, or a network device). The embodiments of the present application do not limit the specific implementation method. Among them, "saving" can mean saving in one or more memories. One or more memories can be set separately or integrated in an encoder or decoder, a processor, or a communication device. One or more memories can also be partially set separately and partially integrated in a decoder, a processor, or a communication device. The type of memory can be any form of storage medium, which is not limited by the embodiments of the present application.

[0078] 3. In the embodiments of the present application, descriptions such as "when...", "in the case of...", "if" and "if" all mean that under certain objective circumstances, the device (such as the first terminal device, or the second terminal device, or the network device) will make corresponding processing. It does not limit the time, and does not require the device (such as the first terminal device, or the second terminal device, or the network device) to perform a judgment action during implementation, nor does it mean that there are other limitations.

[0079] The embodiments of the present application can be applied to long-term evolution (LTE) systems or NR systems (also referred to as 5G systems), V2X systems, LTE and NR hybrid networking systems, or device-to-device (D2D) systems, machine-to-machine (M2M) communication systems, Internet of Things (IoT) systems (such as narrowband Internet of Things (NB-IoT) systems), and other next-generation communication systems. Alternatively, the communication system may also be a non-3GPP communication system, without limitation.

[0080] In addition, the communication architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field can know that with the evolution of the communication architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0081] Figure 3 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application. Figure 3 illustrates the communication system 300 as an example, including a network device 310 and a terminal device 320. Air interface resources can be used for uplink and downlink transmission between the network device 310 and the terminal device 320. Optionally, the air interface resources can include at least one of time domain resources, frequency domain resources, code resources, and space resources.

[0082] It should be noted that the system diagram shown in FIG3 illustrates a communication system including one network device and one terminal device. Of course, the communication system may include a greater number of network devices and terminal devices. Furthermore, wireless communication between devices may include: wireless communication between a network device and a terminal device, wireless communication between network devices, and wireless communication between terminal devices. This embodiment of the present application does not specifically limit this.

[0083] In addition, the "wireless communication" in the embodiments of the present application can also be referred to as "communication", and "communication" can also be described as "data transmission", "information transmission" or "transmission", and the embodiments of the present application do not make specific limitations on this.

[0084] Optionally, the network device in the embodiment of the present application may also be referred to as an access network node, a radio access network (RAN) node, a RAN entity or an access node, etc., which is located on the network side of the above-mentioned communication system to help the terminal device achieve wireless access, and has a device with wireless transceiver function or a chip or chip system that can be set in the device. The network device includes but is not limited to: a base station (BS), an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP or transmission point, TP), a next-generation base station (gNB), a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a Wi-Fi system, etc. The network device may be a macro base station, a micro base station or an indoor station, a relay node or a donor node, an open radio access network (ORAN) or a wireless controller in a centralized radio access network (CRAN) scenario. The network device may also be one or a group of antenna panels (including multiple antenna panels) of a base station in 5G, or a network node constituting a gNB, TRP or TP or transmission measurement function (TMF), such as a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), a road side unit (RSU) with base station functions. Optionally, the network device may also be a server, a wearable device, a vehicle or an on-board device, etc. For example, the network device in V2X technology may be an RSU. All or part of the functions of the network device in this application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform). The network device in this application may also be a logical node, a logical module, or software that can implement all or part of the functions of the network device.

[0085] Among them, the CU and DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH). It can be understood that the network device can be a CU node, a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into a network device in the access network RAN, or the CU can be divided into a network device in the CN, which is not limited here.

[0086] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0087] The embodiments of the present application do not limit the form of the network device. The device used to implement the function of the network device can be a network device; it can also be a device that can support the network device to implement the function, such as a chip system. The device can be installed in the network device or used in conjunction with the network device.

[0088] Optionally, the base station in the embodiment of the present application is a device deployed in a wireless access network that can communicate wirelessly with a terminal. The base station may include various forms of base stations, such as a macro base station, a micro base station (also known as a small base station), a relay station, an access point, a home base station, a TRP, a transmitting point (TP), a mobile switching center, etc., which is not specifically limited in the embodiment of the present application.

[0089] Optionally, the terminal device involved in the present application may also be referred to as a terminal, which may be a device with wireless transceiver capabilities, which may be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it may also be deployed on the water surface (such as a ship, etc.); it may also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal device may be a UE, wherein the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device with wireless communication capabilities. Exemplarily, the UE may be a mobile phone, a tablet computer, or a computer with wireless transceiver capabilities. The terminal device may also be a VR (virtual reality) terminal device, an AR (augmented reality) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like.

[0090] In the embodiments of the present application, there is no limitation on the form of the terminal device. The device for realizing the function of the terminal device may be the terminal device; or it may be a device that can support the terminal device to realize the function, such as a chip system, which may be installed in the terminal device or used in combination with the terminal device.

[0091] In one possible implementation, the network device and terminal device in the embodiment of the present application may also be referred to as a communication device, which may be a general device or a dedicated device, and the embodiment of the present application does not specifically limit this.

[0092] In one possible implementation, the relevant functions of the terminal device or network device in the embodiments of the present application can be implemented by a single device, or by multiple devices, or by one or more functional modules within a single device, and the embodiments of the present application do not specifically limit this. It is understood that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, a combination of hardware and software, or virtualized functions instantiated on a platform (e.g., a cloud platform).

[0093] In specific implementation, the network device and terminal device shown in Figure 3 can both adopt the composition structure shown in Figure 4, or include the components shown in Figure 4. Figure 4 is a schematic diagram of the composition of a communication device 400 provided in an embodiment of the present application, and the communication device 400 includes one or more processors 411. The processor 411 can be a general-purpose processor or a dedicated processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as network devices, terminal devices, or chips, etc.), execute software programs, and process data of software programs.

[0094] Optionally, in one design, the processor 411 may include a program 413 (sometimes also referred to as code or instructions), which may be executed on the processor 411 so that the communication device 400 performs the methods described in the following embodiments.

[0095] Optionally, the communication device 400 may include one or more memories 412 on which a program 414 (sometimes also referred to as code or instructions) is stored. The program 414 can be run on the processor 411, so that the communication device 400 performs the method described in the following method embodiment.

[0096] Optionally, the processor 411 and / or the memory 412 may include artificial intelligence (AI) modules 417 and 418, which are used to implement AI-related functions. The AI ​​module may be implemented through software, hardware, or a combination of software and hardware. For example, the AI ​​module may include a RAN intelligent controller (RIC) module. For example, the AI ​​module may be a near real-time RIC or a non-real-time RIC.

[0097] Optionally, data may be stored in the processor 411 and / or the memory 412. The processor and the memory may be provided separately or integrated together.

[0098] Optionally, the communication device 400 may further include a transceiver 415 and / or an antenna 416. The processor 411 may also be referred to as a processing unit, which controls the communication device (e.g., a network device or a terminal device). The transceiver 415 may also be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, and is configured to implement the transceiver function of the communication device via the antenna 416.

[0099] Optionally, in the embodiment of the present application, the processor 411 is a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The processor 411 may also be other devices with processing functions, such as circuits, devices, or software modules, without limitation.

[0100] Optionally, in an embodiment of the present application, the memory 412 may be a read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions, or a random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, etc., without limitation.

[0101] Although not shown, as an optional implementation, the communication device 400 further includes an output device and an input device. For example, the input device is a keyboard, a mouse, a microphone, or a joystick, and the output device is a display screen, a speaker, or the like.

[0102] It should be noted that the communication device 400 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device having a structure similar to that shown in FIG4 . Furthermore, the structure shown in FIG4 does not limit the communication device. In addition to the components shown in FIG4 , the communication device may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0103] In the embodiment of the present application, the chip system can be composed of chips, or can include chips and other discrete devices.

[0104] In addition, the actions and terms involved in the various embodiments of this application can refer to each other without limitation. The message names or parameter names in the messages exchanged between the various devices in the embodiments of this application are only examples, and other names can also be used in specific implementations without limitation.

[0105] The communication method provided in the embodiment of the present application is described below in combination with Figures 3 and 4 and with reference to Figures 5 to 11 below.

[0106] It should be noted that in the following embodiments of the present application, the message names, parameter names, or information names between network elements are only examples. In other embodiments, they may also be other names. The communication method provided in this application does not make specific limitations on this.

[0107] It is understood that in the embodiments of the present application, each network element may perform some or all of the steps in the embodiments of the present application. These steps or operations are merely examples, and the embodiments of the present application may also perform other operations or variations of various operations. In addition, the steps may be performed in a different order than those presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application need to be performed.

[0108] Figure 5 is a schematic diagram of an example of a communication method provided in an embodiment of the present application. This method is illustrated using the interaction between a terminal device and a network device as an example. Of course, the entity that executes the terminal device actions in this method may also be a device / module within the terminal device; and the entity that executes the network device actions in this method may also be a device / module within the network device. This embodiment of the present application does not specifically limit this.

[0109] For example, as shown in FIG5 , the communication method provided in the embodiment of the present application includes:

[0110] S501: A network device determines first configuration information.

[0111] The first configuration information is used to configure multiple uplink carriers, and the multiple uplink carriers are located in the same frequency band. For example, the multiple uplink carriers correspond to the same frequency band number, and the frequency band corresponding to the frequency band number may be the U6G (6425MHz-7125MHz) frequency band.

[0112] In the embodiment of the present application, the first configuration information also includes configuration information of the downlink carrier, bandwidth configuration information of the uplink carrier, frequency domain position information of the uplink carrier, etc.

[0113] In the embodiment of the present application, the network device can configure multiple uplink carriers in the same frequency band according to the carrier configuration mode corresponding to the first configuration information.

[0114] Exemplarily, multiple uplink carriers may be configured in the U6G frequency band, and the uplink carriers are used for uplink signal transmission.

[0115] S502: The network device sends first configuration information to the terminal device. Correspondingly, the terminal device receives the first configuration information from the network device.

[0116] In an optional implementation, the network device may broadcast the first configuration information.

[0117] Exemplarily, after determining the first configuration information, the network device may send the first configuration information to the terminal device in a broadcast form. At this time, all the terminal devices within the coverage of the network device receive the same first configuration information.

[0118] Optionally, in an embodiment of the present application, the above-mentioned multiple uplink carriers support simultaneous signal transmission; also support time-sharing signal transmission; also support some of the multiple uplink carriers to transmit signals simultaneously and other uplink carriers to transmit signals in time-sharing.

[0119] Example 1: Multiple uplink carriers support simultaneous signal transmission. For example, multiple uplink carriers include uplink carrier 1, uplink carrier 2, and uplink carrier 3. A terminal device can simultaneously transmit uplink signals on uplink carrier 1, uplink carrier 2, and uplink carrier 3.

[0120] Example 2: Multiple uplink carriers support time-sharing transmission of signals. Based on Example 1, the terminal device can stagger transmission signals on uplink carrier 1, uplink carrier 2, and uplink carrier 3, respectively. That is, the terminal device transmits uplink signals on uplink carrier 1, uplink carrier 2, and uplink carrier 3 at different times.

[0121] Example 3: Multiple uplink carriers support simultaneous and time-sharing signal transmission. In combination with Example 1, the terminal device can simultaneously transmit uplink signals on uplink carrier 1 and uplink carrier 2, and the time at which the uplink signal is transmitted on uplink carrier 3 is different from the time at which the uplink signal is transmitted on uplink carrier 1 and uplink carrier 2.

[0122] It should be noted that the terminal device determines whether multiple uplink carriers can simultaneously transmit uplink signals based on the terminal device's capabilities. For example, the terminal device's capabilities may include the terminal device's chip performance, the number of chips, etc. For example, if the chip performance value used for signal transmission in the terminal device is greater than or equal to a preset performance value, or if the number of chips used for signal transmission is greater than or equal to a preset number, the terminal device can simultaneously transmit uplink signals on multiple uplink carriers. The preset number can be set as needed, for example, to 2, 3, or more, without limitation.

[0123] Optionally, in an embodiment of the present application, the multiple uplink carriers include an uplink carrier whose frequency domain position overlaps with the downlink carrier of the terminal device, and an uplink carrier whose frequency domain position does not overlap with the downlink carrier of the terminal device. For the convenience of subsequent description, in the embodiment of the present application, the uplink carrier that overlaps with the downlink carrier is referred to as the first uplink carrier, and the uplink carrier that does not overlap with the downlink carrier is referred to as the second uplink carrier, and no further details are given below.

[0124] In the embodiment of the present application, the downlink carrier of the terminal device may be an existing downlink carrier of the terminal device, or may be a downlink carrier configured by the terminal device while configuring multiple uplink carriers.

[0125] Among them, when the number of carriers in multiple uplink carriers that overlap with the frequency domain position of the downlink carrier of the terminal device is 1. The frequency domain position of the downlink carrier overlaps with the frequency domain position of the uplink carrier, which means that the frequency domain position of the downlink carrier partially overlaps with the frequency domain position of the uplink carrier, or the frequency domain position of the downlink carrier completely overlaps with the frequency domain position of the uplink carrier, or the frequency domain position of the downlink carrier includes the frequency domain position of the uplink carrier.

[0126] In one example, as shown in (a) of Figure 6 , the frequency domain position of the downlink carrier partially overlaps with the frequency domain position of the first uplink carrier. For example, the frequency domain starting point of the downlink carrier is aligned with the center frequency of the first uplink carrier.

[0127] In another example, as shown in (b) of Figure 6, the frequency domain position of the downlink carrier completely overlaps with the frequency domain position of the first uplink carrier, that is, the center frequencies of the downlink carrier and the first uplink carrier are aligned in the frequency domain. For example, the frequency domain starting point of the downlink carrier is aligned with the frequency domain starting point of the first uplink carrier, and the frequency domain ending point of the downlink carrier is aligned with the frequency domain ending point of the first uplink carrier.

[0128] Optionally, the time domain resources of the downlink carrier and the time domain resources of the first uplink carrier are time-division-limited. Specifically, in the time domain, the downlink carrier and the first uplink carrier are configured by the terminal device using an existing TDD frame configuration method.

[0129] Optionally, the frequency domain resources of the downlink carrier and the frequency domain resources of the first uplink carrier are time-division-limited. Specifically, the terminal device uses the frequency domain resources on the downlink carrier and the first uplink carrier in a time division multiplexing (TDM) manner.

[0130] Optionally, in the embodiment of the present application, the frequency domain position of the downlink carrier and the frequency domain position of the second uplink carrier do not overlap, and the downlink carrier and the second uplink carrier support simultaneous signal transmission.

[0131] Furthermore, there is a frequency domain interval between the downlink carrier and the second uplink carrier in the frequency domain, and the size of the frequency domain interval is predefined; or, the size of the frequency domain interval is related to the capability of the terminal device.

[0132] In the embodiment of the present application, the above-mentioned frequency domain interval can also be called a protection interval, an interval or a transition band or other names without limitation. The protection interval can avoid interference problems in uplink and downlink transmissions.

[0133] In one example, the size of the frequency domain interval may be a preset value, such as 5M or 10M, without limitation.

[0134] In another example, the size of the frequency domain interval may be related to the capabilities of the terminal device. For example, the size of the frequency domain interval may be defined based on the bandwidth of the downlink carrier and the bandwidth of the second uplink carrier, or determined based on the capabilities reported by the terminal.

[0135] Exemplarily, take the case where the above-mentioned multiple uplink carriers include two uplink carriers. As shown in Figure 7, it is assumed that the terminal device is configured with downlink carrier A, uplink carrier B and uplink carrier C. Among them, downlink carrier A, uplink carrier B, and uplink carrier C correspond to the same frequency band number, and the center frequency points of downlink carrier A and uplink carrier B are aligned in the frequency domain; downlink carrier A and uplink carrier C do not overlap in the frequency domain, downlink carrier A and uplink carrier C support simultaneous signal transmission, downlink carrier A and uplink carrier C have a frequency domain interval (such as a transition band) in the frequency domain, and the frequency domain interval is predefined, or the frequency domain interval is defined according to the bandwidth of downlink carrier A and uplink carrier C. For example, the width of the frequency domain interval on the predefined frequency band n104 is 5M.

[0136] S503: The terminal device communicates with the network device according to multiple uplink carriers.

[0137] In the embodiment of the present application, since the terminal device obtains multiple uplink carriers, the terminal device can send data to the network device according to the multiple uplink carriers to achieve uplink communication with the network device.

[0138] In the above technical solution, the network device sends first configuration information to the terminal device, and the first configuration information is used to configure multiple uplink carriers within a frequency band. Therefore, compared with the existing one uplink carrier, the bandwidth for the terminal device to transmit uplink data is increased by increasing the number of uplink carriers, which increases the opportunity for uplink transmission, thereby improving uplink coverage and capacity, and enabling the terminal device to support low-latency services, services with large uplink data traffic requirements, and services with high uplink coverage requirements.

[0139] Figure 8 is a schematic diagram of another example of a communication method provided in an embodiment of the present application. This method is illustrated using the interaction between a terminal device and a network device as an example. Of course, the entity that executes the terminal device actions in this method may also be a device / module within the terminal device; and the entity that executes the network device actions in this method may also be a device / module within the network device. This embodiment of the present application does not specifically limit this.

[0140] For example, as shown in FIG8 , the communication method provided in the embodiment of the present application includes:

[0141] S801. The network device determines second configuration information.

[0142] The second configuration information is used to reconfigure the first time domain resource into a second time domain resource, where the first time domain resource and the second time domain resource have different transmission directions. For example, when the first time domain resource is a downlink time domain resource, the second time domain resource is an uplink time domain resource; or, when the first time domain resource is an uplink time domain resource, the second time domain resource is a downlink time domain resource.

[0143] In an embodiment of the present application, the second configuration information may be UE-specific RRC signaling or MAC control element (CE) signaling or physical layer downlink control signaling.

[0144] Exemplarily, the network device may reconfigure the first time domain resource through RRC signaling to obtain the second time domain resource.

[0145] Optionally, in an embodiment of the present application, when the terminal device initially accesses the cell, the network device can broadcast third configuration information to configure the first time domain resources for the terminal device, and then the network device determines the second configuration information to reconfigure the first time domain resources for the terminal device.

[0146] The time domain resource may be a frame, a subframe, a time slot, or a symbol, and the third configuration information may be a system information block 1 (SIB1).

[0147] In one example, when the terminal device initially accesses the cell, the network device can broadcast the frame ratio of the uplink and downlink carriers (such as the frame ratio of the TDD mode) in SIB1. At this time, after receiving SIB1, the terminal device can obtain the first time domain resource based on the SIB1. The first time domain resource includes a first downlink symbol, a first uplink symbol and a first flexible symbol.

[0148] In another example, when the terminal device initially accesses the cell, the network device does not broadcast the frame ratio of the uplink and downlink carriers in SIB1. At this time, after the terminal device receives SIB1, all symbols in the first time domain resource obtained according to the SIB1 are flexible symbols, that is, the transmission direction of all symbols is flexible.

[0149] Optionally, the network device may further configure a public time domain resource in SIB1, where the public time domain resource is used to transmit information.

[0150] In one example, the network device may configure common downlink time domain resources (such as common downlink symbols) in SIB1, where the common downlink time domain resources are used for transmission of broadcast signals.

[0151] In another example, the network device may configure common uplink time domain resources (such as common uplink symbols) in SIB1, and the common uplink resources are used for unified feedback of the terminal device.

[0152] S802: The network device sends second configuration information to the terminal device. Correspondingly, the terminal device receives the second configuration information from the network device.

[0153] In an embodiment of the present application, when the second configuration information is RRC signaling, the network device can send RRC signaling to the terminal device.

[0154] Furthermore, when there are multiple terminal devices, the RRC signaling sent by the network device to each terminal device is different.

[0155] Exemplarily, the network device may send different RRC signaling to multiple terminal devices to configure different time domain resources for each terminal device. For example, one terminal device may be configured with more uplink time domain resources than downlink time domain resources, while another terminal device may be configured with more downlink time domain resources than uplink time domain resources.

[0156] In one example, if the terminal device has a large uplink data transmission demand, the network device can reconfigure the first time domain resource (such as a downlink symbol) to a second time domain resource (such as an uplink symbol); if the terminal device has a large downlink transmission demand, the network device can reconfigure the first time domain resource (such as an uplink symbol) to a second time domain resource (such as a downlink symbol).

[0157] In another example, the network device may send second configuration information to multiple terminal devices. For example, the multiple terminal devices may include terminal device 1 and terminal device 2. The first time domain resource is reconfigured to obtain corresponding second time domain resources. The transmission directions of the first time domain resources for terminal device 1 and terminal device 2 can be the same or different.

[0158] For example, if the uplink data transmission demand of terminal device 1 is relatively large, the first time domain resource of terminal device 1 may be a downlink time domain resource, such as a downlink symbol, and accordingly, the second time domain resource obtained by reconfiguring terminal device 1 may be an uplink symbol. In this way, terminal device 1 may send an uplink signal to the network device through the reconfigured second time domain resource. If the downlink transmission demand of terminal device 2 is relatively large, the first time domain resource of terminal device 2 may be an uplink time domain resource, such as an uplink symbol, and accordingly, the second time domain resource obtained by reconfiguring terminal device 2 may be a downlink symbol. In this way, terminal device 2 may receive the downlink signal of the network device through the second time domain resource. That is, the network device may receive the uplink signal of terminal device 1 and send a downlink signal to terminal device 2 at the same time.

[0159] In an optional implementation, the first time domain resource may be an uplink time domain resource or a downlink time domain resource, or all symbols in the first time domain resource may be flexible symbols.

[0160] In one example, when the first time domain resource is a downlink time domain resource, the downlink time domain resource includes a downlink symbol. At this time, the network device can reconfigure the downlink symbol through RRC signaling.

[0161] For example, the downlink time domain resources include 12 symbols (e.g., 12 downlink symbols (D)). As shown in FIG9(a), the 14 symbols include 12 downlink symbols (D), 1 uplink symbol (U), and 1 flexible symbol (F). In this case, as shown in FIG9(b), the network device can reconfigure the 12 downlink symbols (D) into 12 uplink symbols (U) through RRC signaling.

[0162] In another example, when the first time domain resource is an uplink time domain resource, the uplink time domain resource includes an uplink symbol. At this time, the network device can reconfigure the uplink symbol through RRC signaling.

[0163] In another example, when all symbols in the first time domain resource are flexible symbols, the network device may reconfigure all flexible symbols through RRC signaling.

[0164] For example, taking the case where the first time domain resource includes 14 symbols, as shown in FIG10(a), assuming that the 14 symbols are all flexible symbols, after receiving RRC signaling from the network device, the terminal device can configure the 14 symbols as follows: 2 downlink symbols and 12 uplink symbols according to the RRC signaling, as shown in FIG10(b).

[0165] Optionally, in an embodiment of the present application, the network device may also broadcast a common downlink symbol through SIB1, and the network device does not reconfigure the common downlink symbol when reconfiguring the symbol through RRC signaling.

[0166] For example, as shown in (a) of Figure 11, assuming that there are 14 symbols in total, including 1 common downlink symbol, 11 downlink symbols, and 2 uplink symbols, then as shown in (b) of Figure 11, the network device can reconfigure the 13 symbols other than the common downlink symbol through RRC signaling to obtain 2 downlink symbols and 11 uplink symbols, while the common downlink symbol remains unchanged.

[0167] Optionally, in an embodiment of the present application, the terminal device may also be configured with SUL to further increase the uplink transmission bandwidth.

[0168] S803. The terminal device communicates with the network device according to the second time domain resource.

[0169] In an embodiment of the present application, since the terminal device obtains a second time domain resource with a transmission direction different from the first time domain resource, the terminal device can use the second time domain resource to send data to the network device to achieve communication with the network device.

[0170] In the above technical solution, the network device sends different second configuration information to different terminal devices, and the second configuration information is used to reconfigure the first time domain resource into a second time domain resource with a different transmission direction, so that when the terminal device has a low uplink transmission delay requirement, or a large uplink data traffic requirement, or a high uplink coverage requirement, the downlink time domain resource is configured as an uplink time domain resource, thereby improving the bandwidth of the terminal device for transmitting uplink data, increasing the opportunity for uplink transmission, and thus improving the uplink coverage and capacity, thereby enabling the terminal device to support low-latency services, services with large uplink data traffic requirements, and services with high uplink coverage requirements.

[0171] The above mainly introduces the solutions provided by the embodiments of the present application from the perspective of network element interaction. Accordingly, the embodiments of the present application also provide a communication device, which is used to implement the various methods described above. The communication device can be the terminal device or network device in the above method embodiments, or a device that includes the above terminal device or network device, or a component that can be used in a terminal device or network device. It is understood that in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to performing each function. Those skilled in the art should readily appreciate that, in combination with the various exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or in a hardware-driven manner by computer software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0172] In the embodiment of the present application, the communication device can be divided into functional modules according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be understood that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0173] For example, FIG12 is a schematic diagram of a communication device 1200 provided in an embodiment of the present application, which includes a transceiver module 1210 and optionally a processing module 1220. The transceiver module 1210, which may also be referred to as a transceiver unit, is used to implement transceiver functions, and may be, for example, a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0174] Taking the communication device 1200 as an example of the terminal device described in the above method embodiment, in one possible implementation manner:

[0175] The transceiver module 1210 is configured to receive first configuration information from a network device, the first configuration information being used to configure multiple uplink carriers located in the same frequency band. The processing module 1220 is configured to communicate with the network device based on the multiple uplink carriers.

[0176] Taking the communication device 1200 as the network device described in the above method embodiment as an example, in one possible implementation manner:

[0177] The transceiver module 1210 is configured to determine first configuration information, where the first configuration information is used to configure multiple uplink carriers, where the multiple uplink carriers are located in the same frequency band. The transceiver module 1210 is further configured to send the first configuration information to a terminal device.

[0178] Taking the communication device 1200 as an example of the terminal device described in the above method embodiment, in one possible implementation manner:

[0179] The transceiver module 1210 is configured to receive second configuration information from a network device, the second configuration information being used to reconfigure the first time domain resource into a second time domain resource, wherein the first time domain resource and the second time domain resource have different transmission directions. The processing module 1220 is configured to communicate with the network device based on the second time domain resource.

[0180] Taking the communication device 1200 as the network device described in the above method embodiment as an example, in one possible implementation manner:

[0181] The transceiver module 1210 is configured to determine second configuration information, where the second configuration information is used to reconfigure the first time domain resource into a second time domain resource, where the first time domain resource and the second time domain resource have different transmission directions. The transceiver module 1210 is further configured to send the second configuration information to the terminal device.

[0182] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here. Optionally, the communication device 1200 may also include a storage module, which can be used to store instructions and / or data, and the processing module 1220 can read the instructions and / or data in the storage module.

[0183] In the embodiment of the present application, the communication device 1200 is presented in the form of various functional modules divided in an integrated manner. The "module" here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, those skilled in the art will appreciate that the communication device can take the form of the communication device 400 shown in Figure 4.

[0184] For example, the processor 411 in the communication device 400 shown in FIG4 may call computer-executable instructions stored in the memory 412 to enable the communication device 400 to execute the communication method in the above method embodiment.

[0185] Specifically, the functions / implementation processes of the transceiver module 1210 and the processing module 1220 in FIG12 can be implemented by the processor 411 in the communication device 400 shown in FIG4 calling computer-executable instructions stored in the memory 412. Alternatively, the functions / implementation processes of the processing module 1220 in FIG12 can be implemented by the processor 411 in the communication device 400 shown in FIG4 calling computer-executable instructions stored in the memory 412, and the functions / implementation processes of the transceiver module 1210 in FIG12 can be implemented by the transceiver 415 and / or antenna 416 in the communication device 400 shown in FIG4.

[0186] Since the communication device provided in the embodiment of the present application can execute the above-mentioned communication method, the technical effects that can be obtained can be referred to the above-mentioned method embodiment and will not be repeated here.

[0187] It should be understood that one or more of the above modules or units can be implemented by software, hardware, or a combination of the two. When any of the above modules or units is implemented in software, the software exists in the form of computer program instructions and is stored in a memory, and a processor can be used to execute the program instructions and implement the above method flow. The processor can be built into an SoC (system on chip) or an ASIC, or it can be an independent semiconductor chip. In addition to the core used to execute software instructions to perform calculations or processing within the processor, it can further include necessary hardware accelerators, such as field programmable gate arrays (FPGAs), PLDs (programmable logic devices), or logic circuits that implement dedicated logic operations.

[0188] When the above modules or units are implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run the necessary software or not rely on the software to execute the above method flow.

[0189] Optionally, an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the method in any of the above method embodiments. In one possible design, the communication device also includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the above method embodiments. Of course, the memory may not be in the communication device. When the communication device is a chip system, it may be composed of a chip, or it may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

[0190] Optionally, an embodiment of the present application also provides a computer-readable storage medium, which stores a computer program or instruction. When the computer program or instruction is run on a communication device, the communication device can execute the method described in any of the above method embodiments or any of its implementation methods.

[0191] Optionally, an embodiment of the present application further provides a communication system, which includes the network device described in the above method embodiment and the terminal device described in the above method embodiment.

[0192] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0193] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0194] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

Claims

1. A communication method, characterized in that: Applied to a terminal device, the method includes: receiving first configuration information from a network device, where the first configuration information is used to configure multiple uplink carriers, where the multiple uplink carriers are located in the same frequency band; Communicate with the network device according to the multiple uplink carriers.

2. The method according to claim 1, characterized in that The multiple uplink carriers support simultaneous signal transmission.

3. The method according to claim 1 or 2, characterized in that The multiple uplink carriers support time-division transmission of signals.

4. The method according to any one of claims 1 to 3, characterized in that The frequency domain position of the downlink carrier of the terminal device overlaps with the frequency domain position of the first uplink carrier, and the first uplink carrier is one of the multiple uplink carriers.

5. The method according to claim 4, characterized in that The time domain resources of the downlink carrier and the time domain resources of the first uplink carrier are time-division limited, and the frequency domain resources of the downlink carrier and the frequency domain resources of the first uplink carrier are time-division limited.

6. The method according to claim 4 or 5, characterized in that The frequency domain position of the downlink carrier and the frequency domain position of the second uplink carrier do not overlap, and the second uplink carrier is a carrier other than the first uplink carrier among the multiple uplink carriers.

7. The method according to claim 6, characterized in that There is a frequency domain interval between the downlink carrier and the second uplink carrier in the frequency domain, and the size of the frequency domain interval is predefined; or, the size of the frequency domain interval is related to the capability of the terminal device.

8. The method according to claim 6 or 7, characterized in that The downlink carrier and the second uplink carrier support simultaneous signal transmission.

9. A communication method, characterized in that: Applied to a network device, the method includes: Determine first configuration information, where the first configuration information is used to configure multiple uplink carriers, where the multiple uplink carriers are located in the same frequency band; Send the first configuration information to the terminal device.

10. The method according to claim 9, characterized in that The multiple uplink carriers support simultaneous signal transmission.

11. The method according to claim 9 or 10, characterized in that The multiple uplink carriers support time-division transmission of signals.

12. The method according to any one of claims 9 to 11, characterized in that: The frequency domain position of the downlink carrier of the terminal device overlaps with the frequency domain position of the first uplink carrier, and the first uplink carrier is one of the multiple uplink carriers.

13. The method according to claim 12, characterized in that The time domain resources of the downlink carrier and the time domain resources of the first uplink carrier are time-division limited, and the frequency domain resources of the downlink carrier and the frequency domain resources of the first uplink carrier are time-division limited.

14. The method according to claim 12 or 13, characterized in that The frequency domain position of the downlink carrier and the frequency domain position of the second uplink carrier do not overlap, and the second uplink carrier is a carrier other than the first uplink carrier among the multiple uplink carriers.

15. The method according to claim 14, characterized in that There is a frequency domain interval between the downlink carrier and the second uplink carrier in the frequency domain, and the size of the frequency domain interval is predefined; or, the size of the frequency domain interval is related to the capability of the terminal device.

16. The method according to claim 14 or 15, characterized in that The downlink carrier and the second uplink carrier support simultaneous signal transmission.

17. A communication method, characterized in that: Applied to a terminal device, the method includes: receiving second configuration information from a network device, where the second configuration information is used to reconfigure the first time domain resource into a second time domain resource, where the first time domain resource and the second time domain resource have different transmission directions; Communicate with the network device according to the second time domain resource.

18. The method according to claim 17, characterized in that The first time domain resource is a time domain resource other than a common time domain resource, and the common time domain resource is used to transmit a signal.

19. The method according to claim 17 or 18, characterized in that The time domain resource is a frame, a subframe, a time slot, or a symbol.

20. A communication method, characterized in that: Applied to a network device, the method includes: Determine second configuration information, where the second configuration information is used to reconfigure the first time domain resource into a second time domain resource, where the first time domain resource and the second time domain resource have different transmission directions; Send the second configuration information to the terminal device.

21. The method according to claim 20, characterized in that The first time domain resource is a time domain resource other than a common time domain resource, and the common time domain resource is used to transmit a signal.

22. The method according to claim 20 or 21, characterized in that The time domain resource is a frame, a subframe, a time slot, or a symbol.

23. A communication device, characterized in that: include: A functional unit for executing the method according to any one of claims 1 to 22; wherein the actions executed by the functional unit are implemented by hardware or the corresponding software is implemented by hardware.

24. A communication device, characterized in that: The communication device includes a processor; the processor is configured to execute a computer program or instruction, or to implement a logic circuit, so that the communication device implements the method according to any one of claims 1 to 22.

25. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions or programs, and when the computer instructions or programs are executed on a computer, the communication device implements the method according to any one of claims 1 to 22.

26. A computer program product, characterized in that The computer program product comprises instructions, and when the instructions are executed on a computer, the computer performs the method according to any one of claims 1 to 22.

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