Non-codebook-based PUSCH information transmission / reception method and device thereof

Abstract

The embodiment of the present application discloses a method and apparatus for transmitting / receiving PUSCH information based on a non-codebook, which increases the maximum number of PUSCH transmission layers supported by a terminal device to 8 layers, and reduces the maximum number of uplink data transmission layers supported by a terminal device to L max and indicating a first SRS resource combination measured from an SRS resource set to a terminal device based on the second SRI mapping table, the first SRS resource combination being used to indicate a precoding matrix used for PUSCH transmission, the first SRS resource combination including at least one single-port SRS resource. In an embodiment of the present application, the existing first SRI mapping table is extended, and the newly added uplink data transmission layer number and the newly added N SRS resource combination are added to the extended second SRI mapping table. SRS This fills the gap in the corresponding SRI mapping relationship, providing a basis for enhancing the uplink transmission capability.

Description

[Technical field]

[0001] The present application relates to the field of communication technology, and in particular to a non-codebook-based PUSCH information transmitting / receiving method and apparatus thereof. [Background technology]

[0002] In order to apply current business or scenarios, the number of uplink data transmission layers of a terminal device can be increased to 8 layers to support a higher uplink transmission rate comparable to the downlink. When the uplink of a terminal device is enhanced to 8 layers, how to realize non-codebook Physical Uplink Share Channel (PUSCH) transmission becomes a problem to be solved. Summary of the Invention [Problem to be solved by the invention]

[0003] The embodiments of the present application provide a method and apparatus for transmitting / receiving information of a PUSCH based on a non-codebook, which enables a terminal device to increase the number of uplink data transmission layers to 8 layers and realize a PUSCH transmission based on a non-codebook. [Means for solving the problem]

[0004] In a first aspect, an embodiment of the present application provides a non-codebook-based PUSCH information transmission method, which is performed by a network device, and includes: Deciding to increase the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by a terminal device to 8 layers, and determining the maximum number of uplink data transmission layers L supported by the terminal device. max Extending an existing first probe reference signal resource indication (SRI) mapping table based on the first SRI mapping table to obtain a second SRI mapping table; and indicating a first SRS resource combination measured from an SRS resource set to a terminal device based on the second SRI mapping table, the first SRS resource combination being used to indicate a precoding matrix to be used for PUSCH transmission, the first SRS resource combination including at least one single-port SRS resource.

[0005] In the embodiment of the present application, the maximum number of uplink data transmission layers L max Based on this, the existing first SRI mapping table is extended to include the newly added uplink data transmission layer number and the newly added N SRS Filling in the blanks of the SRI mapping relationship corresponding to the second SRI mapping table, and providing a basis for enhancing the uplink transmission capability. In addition, based on the configured second SRI mapping table, the terminal device is instructed on the precoding matrix required for the actual transmission of the PUSCH, which is favorable for providing the safety, reliability and accuracy of the transmission of the PUSCH, and can select a precoding matrix that meets the PUSCH transmission requirements, and can avoid resource collisions with other terminal devices.

[0006] In a second aspect, an embodiment of the present application provides a method for receiving PUSCH information based on another non-codebook, the method being performed by a terminal device, the method including: Increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers and obtaining a second SRI mapping table, the second SRI mapping table being obtained by extending an existing first SRI mapping table; receiving an SRI index value sent by a network device, and determining a first SRS resource combination from the second SRI mapping table according to the SRI index value, the first SRS resource combination being a combination formed by SRS resources selected from an SRS resource set, and including at least one single-port SRS resource; and determining a precoding matrix to be used for PUSCH transmission based on the first SRS resource combination.

[0007] In the embodiment of the present application, after the existing first SRI mapping table is extended, the extended second SRI mapping table is updated based on the number of uplink data transmission layers newly added by extending the SRI mapping table and the number of newly added N SRS The blank of the SRI mapping relationship corresponding to the second SRI mapping table can be filled, providing a basis for enhancing uplink transmission capability. In addition, the precoding matrix required for the actual transmission of the PUSCH can be indicated to the terminal device based on the configured second SRI mapping table, which is favorable for providing security, reliability and accuracy of the transmission of the PUSCH, and a precoding matrix that meets the PUSCH transmission requirements can be selected, and resource collisions with other terminal devices can be avoided.

[0008] In a third aspect, an embodiment of the present application provides a communication device, which realizes part or all of the functions of the network device in the method according to the first aspect, for example, the function of the communication device may have the functions of part or all of the embodiments of the present application, or may have the function of implementing any embodiment of the present application individually. The functions may be realized by hardware, or may be realized by executing corresponding software by hardware. The hardware or software includes a unit or module corresponding to one or more of the above functions.

[0009] In an implementation, the structure of the communication device may include a transceiver module and a processing module, the processing module being configured to support the communication device to perform functions corresponding to the above-mentioned method. The transceiver module supports the communication device to communicate with other devices. The communication device may further include a storage module, the storage module combining the transceiver module and the processing module, and used to store computer programs and data required for the communication device.

[0010] As examples, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

[0011] In a fourth aspect, an embodiment of the present application provides another communication device, which realizes part or all of the functions of the network device of the example of the method according to the second aspect, for example, the function of the communication device may have the functions of part or all of the embodiments of the present application, or may have the function of implementing any embodiment of the present application individually. The functions may be realized by hardware, or may be realized by executing corresponding software by hardware. The hardware or software includes a unit or module corresponding to one or more of the above functions.

[0012] In an implementation, the structure of the communication device may include a transceiver module and a processing module, the processing module being configured to support the communication device to perform functions corresponding to the above-mentioned method. The transceiver module supports the communication device to communicate with other devices. The communication device may further include a storage module, which combines the transceiver module and the processing module and is used to store computer programs and data required by the communication device.

[0013] In a fifth aspect, an embodiment of the present application provides a communication device, the communication device including a processor, the communication device executing the method according to the first aspect when the processor invokes a computer program in a memory.

[0014] In a sixth aspect, an embodiment of the present application provides a communication device, the communication device including a processor, the communication device executing the method according to the second aspect when the processor invokes a computer program in a memory.

[0015] In a seventh aspect, an embodiment of the present application provides a communication device, the communication device including a processor and a memory, a computer program stored in the memory, and the processor executes the computer program stored in the memory, thereby causing the communication device to perform the method according to the first aspect.

[0016] In an eighth aspect, an embodiment of the present application provides a communication device, the communication device including a processor and a memory, a computer program stored in the memory, the processor executing the computer program stored in the memory to cause the communication device to perform the method according to the second aspect.

[0017] In a ninth aspect, an embodiment of the present application provides a communication device, the device including a processor and an interface circuit, the interface circuit receiving and transmitting code instructions to the processor, the processor executing the code instructions to cause the device to perform the method according to the first aspect.

[0018] In a tenth aspect, an embodiment of the present application provides a communication device, the device including a processor and an interface circuit, the interface circuit receiving and transmitting code instructions to the processor, the processor executing the code instructions to cause the device to perform the method according to the second aspect.

[0019] In an eleventh aspect, an embodiment of the present application provides a communication system, the system comprising a communication device according to the third aspect and a communication device according to the fourth aspect, or the system comprising a communication device according to the fifth aspect and a communication device according to the sixth aspect, or the system comprising a communication device according to the seventh aspect and a communication device according to the eighth aspect, or the system comprising a communication device according to the ninth aspect and a communication device according to the tenth aspect.

[0020] In a twelfth aspect, an embodiment of the present invention provides a computer readable storage medium, used to store instructions for use in a terminal device as defined above, which, when executed, cause the terminal device to perform a method as defined in the first aspect.

[0021] In a thirteenth aspect, an embodiment of the present invention provides a readable storage medium, used to store instructions for use in a network device as defined above, which, when executed, cause the network device to perform the method according to the second aspect.

[0022] In a fourteenth aspect, the present application further provides a computer program product comprising a computer program which, when executed on a computer, causes the computer to perform the method according to the first aspect above.

[0023] In a fifteenth aspect, the present application further provides a computer program product comprising a computer program which, when executed on a computer, causes the computer to perform the method according to the second aspect above.

[0024] In a sixteenth aspect, the present application provides a chip system, the chip system including at least one processor and an interface, used to support a terminal device to realize the function according to the first aspect, for example, to determine or process at least one of the data and information according to the above-mentioned method. In a possible design, the chip system further includes a memory, the memory being used to store computer programs and data required by the terminal device. The chip system may be constituted by a chip, and may also include a chip and other discrete devices.

[0025] In a seventeenth aspect, the present application provides a chip system, the chip system including at least one processor and an interface, for use in supporting a network device implementing the functions according to the second aspect, such as determining or processing at least one of the data and information according to the method described above. In a possible design, the chip system further includes a memory, the memory being used to store computer programs and data required by the network device. The chip system may be comprised of a chip, or may include chips and other discrete devices.

[0026] In an eighteenth aspect, the present application provides a computer program which, when executed on a computer, causes the computer to carry out the method according to the first aspect above.

[0027] In an eighteenth aspect, the present application provides a computer program which, when executed on a computer, causes the computer to carry out the method according to the second aspect above. [Brief description of the drawings]

[0028] In order to more clearly describe the technical solutions in the embodiments or background art of the present application, the drawings which need to be used in the embodiments or background art of the present application are described below.

[0029] [Figure 1]1 is an architecture of a communication system provided by an embodiment of the present application; [Diagram 2] 4 is a flowchart of a non-codebook-based PUSCH information transmission method provided by an embodiment of the present application; [Diagram 3] 4 is a flowchart of a non-codebook-based PUSCH information transmission method provided by an embodiment of the present application; [Figure 4] 4 is a flowchart of a non-codebook-based PUSCH information transmission method provided by an embodiment of the present application; [Diagram 5] 4 is a flowchart of a non-codebook-based PUSCH information transmission method provided by an embodiment of the present application; [Figure 6] 4 is a flowchart of a method for receiving PUSCH information based on a non-codebook provided by an embodiment of the present application; [Figure 7] 4 is a flowchart of a method for receiving PUSCH information based on a non-codebook provided by an embodiment of the present application; [Figure 8] 4 is a flowchart of a method for receiving PUSCH information based on a non-codebook provided by an embodiment of the present application; [Figure 9] 4 is a flowchart of a method for receiving PUSCH information based on a non-codebook provided by an embodiment of the present application; [Figure 10] 1 is a schematic configuration diagram of a communication device provided according to an embodiment of the present application; [Figure 11] 1 is a schematic configuration diagram of a communication device provided according to an embodiment of the present application; [Figure 12] FIG. 1 is a schematic diagram of the configuration of a chip provided according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] Exemplary embodiments will now be described in detail, examples of which are illustrated in the drawings. Where the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise stated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure, as detailed in the appended claims.

[0031] The terms used in the embodiments of the present disclosure are intended only to describe particular embodiments and are not intended to limit the embodiments of the present disclosure. The singular forms "a" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural, unless the context clearly indicates otherwise. The term "and / or" as used herein should also be understood to mean and include any or all possible combinations of one or more associated listed items.

[0032] It should be noted that, in the embodiments of the present disclosure, the terms first, second, and third may be used to describe various pieces of information, but the information is not limited to these terms. These terms are used only to distinguish between information of the same type. For example, the first piece of information may be referred to as the second piece of information, and similarly, the second piece of information may be referred to as the first piece of information, without departing from the scope of the embodiments of the present disclosure. Depending on the context, the terms "if" and "if" as used herein may be interpreted as "at the time of," "in the event of," or "in response to the determination."

[0033] For purposes of brevity and ease of understanding, the terms used herein when characterizing size relationships are "greater" or "smaller", "higher" or "lower". However, to those of skill in the art, the term "greater" also includes the meaning "greater than" and the term "smaller" also includes the meaning "less than", and the term "higher" also includes the meaning "more than" and the term "lower" also includes the meaning "less than".

[0034] To facilitate understanding, we first introduce some terminology relevant to this application.

[0035] The probe reference signal SRS (Sounding Reference Signal) is used to estimate uplink channel frequency domain information and perform frequency selective scheduling, and is also used to estimate the uplink channel and perform downlink beamforming.

[0036] The SRS resource indicator (SRI) is used to indicate which SRS resource the UE should use to perform uplink data transmission.

[0037] A transmission rank indicator (TRI) is used to indicate the number of data transmission layers corresponding to a precoding matrix used for actual transmission of the PUSCH.

[0038] In order to better understand the non-codebook-based PUSCH information transmission / reception method disclosed in the embodiment of the present application, the following first describes a communication system applied to the embodiment of the present application.

[0039] An embodiment of the present application provides a communication system, which may include, but is not limited to, one transmitting device and one receiving device. Optionally, the transmitting device may be a terminal device, and the receiving device may be a network device.

[0040] Referring to Figure 1, Figure 1 is an architecture of a communication system provided by an embodiment of the present application. The communication system can include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in Figure 1 are only examples and do not constitute limitations of the embodiment of the present application, and in actual applications, the system can include two or more network devices and two or more terminal devices. The communication system shown in Figure 1 takes a network device 11 and a terminal device 12 as an example.

[0041] It should be noted that the technical solutions of the embodiments of the present application may be applied to various communication systems, such as a long term evolution (LTE) system, a 5th generation (5G) mobile communication system, a 5G new radio (NR) system, or other future new mobile communication systems.

[0042] The network device 11 in the embodiment of the present application is an entity for transmitting and receiving signals on the network side. For example, the network device 11 may be an evolved base station (eNB), a transmission reception point (TRP), a next generation base station (gNB) in an NR system, a base station in other future mobile communication systems, or an access point in a wireless fidelity (WiFi) system. The embodiment of the present application does not limit the specific technology and specific device form used for the network device. The network device provided by the embodiment of the present application may be composed of a central unit (CU) and a distributed unit (DU), where the CU is also called a control unit, and the CU-DU structure can be used to separate the protocol layer of a base station, for example, a base station, and some functions of the protocol layer are centrally controlled by the CU, and some or all of the remaining protocol layer functions are distributed in the DU, and the CU centrally controls the DU.

[0043] The terminal device 12 in the embodiment of the present application is an entity for transmitting and receiving signals on the user side, for example, a mobile phone. The terminal device may be called a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone, a wearable device, a tablet (Pad), a personal computer equipped with a wireless transmission and reception function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. The embodiment of the present application does not limit the specific technology and the specific device form used for the terminal device.

[0044] It should be noted that the communication system described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not limit the technical solutions provided by the embodiments of the present application. As those skilled in the art can understand, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application can also be applied to similar technical problems.

[0045] The following describes in detail the non-codebook-based PUSCH information transmission / reception method and apparatus provided by the present application in combination with the drawings.

[0046] Please refer to Figure 2, which is a flowchart of a PUSCH information transmission method based on a non-codebook provided by an embodiment of the present application. As shown in Figure 2, the method is performed by a network device, and may include, but is not limited to, the following steps: Step S21, in response to increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, the maximum number of uplink data transmission layers L supported by the terminal device is increased to 8 layers. max Based on this, an existing first probe reference signal resource indication (SRI) mapping table is extended to obtain a second SRI mapping table.

[0047] In the embodiment of the present application, the number of uplink data transmission layers of the terminal device is increased to 8 layers, that is, the terminal device can increase the maximum PUSCH transmission support to 8 layers, and can further be used to support a higher uplink transmission rate compared to the downlink. The first uplink data transmission layer in the embodiment of the present application is an uplink data transmission layer corresponding to the PUSCH shared channel transmission conventionally supported by a single terminal, and the second uplink data transmission layer is a newly increased uplink data transmission layer on the basis of the conventional first uplink data transmission layer. For example, the uplink data transmission layer corresponding to the conventional PUSCH is layer 1-4, and layer 1-4 is the first uplink data transmission. In the present application, when the number of layers is newly increased to 8 layers, the second uplink data transmission layer is layer 5 to layer 8. This definition applies to all the embodiments of the present application.

[0048] A network device configures an SRS resource set, one of the functions of which is a non-codebook, in a terminal device through higher layer signaling. For example, the network device configures the non-codebook SRS resource set in the terminal device through Radio Resource Control (RRC) signaling or a Media access control-Control Element (MAC-CE). Alternatively, the non-codebook SRS resource set can be configured or reconfigured through the RRC, and some or all of the configuration can be updated through the MAC-CE.

[0049] Alternatively, the SRS resource set may be a periodic SRS resource set, or a semi-persistent SRS resource set, or an aperiodic SRS resource set, and in the embodiment of the present application, the SRS resource set is one or more single-port SRS resources.

[0050] Each first uplink data transmission layer corresponds to a first SRI mapping table, and the SRI mapping table includes a correspondence relationship between an SRI index value and an SRS resource combination, i.e., an SRI index value can index to a corresponding SRS resource combination, in which the SRS resource combination includes one or more SRS resources of an SRS resource set that a network device configures for a terminal device.

[0051] In an embodiment of the present application, when the maximum number of physical uplink shared channel (PUSCH) transmission layers is increased to 8 layers, the maximum number of uplink data transmission layers supported by the terminal device is L max= 8, and the existing first SRI mapping table does not cover layers 5 to 8 of uplink data transmission and can support upload data transmission of up to 8 layers. Therefore, there is a need to extend the existing first SRI mapping table to cover layers 5 to 8 of uplink data transmission and support upload data transmission of up to 8 layers.

[0052] Optionally, the network device may have a maximum uplink data transmission layer number L max and the existing first uplink data transmission layer number, and determine a configuration number set corresponding to a newly added second uplink data transmission layer number and a probe reference signal (SRS) resource set configured in the terminal device, and the configuration number set is the number N of SRS resources configured in the SRS resource set. SRS In the embodiment of the present application, when the maximum number of physical uplink shared channel (PUSCH) transmission layers is increased to 8 layers, the number of SRSs that can be configured in the SRS resource set is N SRS increases from being able to configure four SRS resources to being able to configure eight SRS resources.

[0053] Further, the network device extends the first SRI mapping table based on a second uplink data transmission layer number and a set of setting numbers to obtain a second SRI mapping table, which can cover uplink data transmission from layer 1 to layer 8.

[0054] As a possible implementation, the maximum number of uplink data transmission layers L max According to the set of numbers, the first SRI mapping table can be expanded to expand one SRI mapping table corresponding to each uplink data transmission layer number, and the expanded SRI mapping table can be SRS , and an index value corresponding to the SRS resource combination. That is, eight SRI mapping tables are set, and each SRI mapping table includes NSRS = 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8, and the corresponding SRS resource combinations and corresponding SRI index values. Note that, the extended SRI mapping table corresponding to each uplink data transmission layer number is a second SRI mapping table.

[0055] As another possible implementation, the maximum number of uplink data transmission layers L max and based on the set of set numbers, the first SRI mapping table is extended to extend a second SRI mapping table including a part of the SRI mapping relationships. In some implementations, the second SRI mapping table can include a part of the contents of all the SRI mapping relationships corresponding to each uplink data transmission layer number. For example, a part can be selected from the extended SRI mapping table corresponding to each uplink data transmission layer number to configure one restricted second SRI mapping table. In other implementations, the second SRI mapping table can include a part of the mapping relationships in all the SRI mapping relationships corresponding to one of the uplink data transmission layer numbers, that is, the second SRI mapping table is an SRI mapping sub-table configured with a part of the mapping relationships corresponding to one of the uplink data transmission layer numbers, thereby saving the signaling overhead indicated by the SRI.

[0056] Step S22, based on the second SRI mapping table, indicate a first SRS resource combination measured from the SRS resource set to the terminal device, which is used to indicate a precoding matrix used for PUSCH transmission, where the first SRS resource combination includes at least one single-port SRS resource.

[0057] In an embodiment of the present application, after the terminal device obtains the SRS resource set configured by the network device, it can precode the SRS resource configured in the SRS resource set according to an initial precoding matrix, and send the SRS resource using precoding to the network device. The precoded SRS resource can be used to obtain channel state information (Channel State Information, CSI), and can further obtain channel estimation information, which can reflect scheduling information such as channel conditions, multi-user interference situations, and / or channel noise.

[0058] In addition, the non-codebook uplink transmission scheme is also a spatial multiplexing technology, and the difference between the non-codebook uplink transmission scheme and the codebook-based uplink transmission scheme is that the precoding is not determined among limited candidate values ​​based on a fixed codebook, but the precoding is obtained based on a certain criterion. When there is uplink downlink channel reciprocity, the terminal can calculate downlink channel information based on the channel reciprocity to obtain an uplink precoding matrix. When the channel reciprocity is good enough, the terminal can obtain more accurate precoding through the downlink channel, and compared with the codebook-based transmission scheme, the overhead indicated by the precoding can be saved and better performance can be obtained at the same time.

[0059] Alternatively, the network device may send associated downlink Channel State Information-Reference Signal (CSI-RS) resources configured for the terminal device to the terminal device, so that the terminal device can determine an initial precoding matrix according to the downlink CSI-RS resources, whereby the precoding matrix used for the actual transmission of the PUSCH in this application is selected from the initial precoding matrix.

[0060] Thus, the network device can receive the precoded SRS resource to perform channel estimation and obtain channel estimation information, where the channel estimation information can reflect the channel condition, the multi-user interference situation, and / or the channel noise, so as to determine a first SRS resource combination used for actual transmission of PUSCH from the SRS resource set configured for the terminal device. Furthermore, the network device can determine a precoding matrix used for PUSCH transmission based on the first SRS resource combination, and can determine a TRI corresponding to the precoding matrix based on the number of resources in the first SRS resource combination, i.e., the network device selects a first SRS resource combination from the SRS resource set based on the precoded SRS resource, and determines a precoding matrix used for PUSCH transmission and a TRI corresponding to the precoding matrix used for PUSCH transmission, where the TRI can indicate the number of third uplink data transmission layers used for PUSCH transmission.

[0061] The network device may determine, based on the third uplink data transmission layer number, from a second SRI mapping table, an SRI mapping relationship corresponding to the third uplink data transmission layer number, and determine an SRI index value corresponding to a first SRS resource combination from the SRI mapping relationship. The network device indicates the first SRS resource combination to the terminal device through the SRI index value, and instructs the terminal device to determine a precoding matrix used for actual transmission of the PUSCH according to the first SRS resource combination.

[0062] In the embodiment of the present application, the maximum number of uplink data transmission layers L maxBased on this, the existing first SRI mapping table is extended to include the newly added uplink data transmission layer number and the newly added N SRS Filling in the blanks of the SRI mapping relationship corresponding to the second SRI mapping table, and providing a basis for enhancing the uplink transmission capability. In addition, based on the configured second SRI mapping table, the terminal device is instructed on the precoding matrix required for the actual transmission of the PUSCH, which is favorable for providing the safety, reliability and accuracy of the transmission of the PUSCH, and can select a precoding matrix that meets the PUSCH transmission requirements, and can avoid resource collisions with other terminal devices.

[0063] Referring to Figure 3, Figure 3 is a flowchart of a PUSCH information transmission method based on a non-codebook provided by an embodiment of the present application. As shown in Figure 3, the method is performed by a network device, and can include, but is not limited to, the following steps: Step S31, in response to increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, the maximum number of uplink data transmission layers L supported by the terminal device is increased to 8 layers. max and the existing first uplink data transmission layer number, determine a newly added second uplink data transmission layer number and a configuration number set corresponding to the SRS resource set configured in the terminal device.

[0064] For the process of transmitting and configuring the SRS resource set, reference may be made to the relevant content described in the above embodiment, and the description will be omitted here.

[0065] The number of settings is the number of SRS resources set in the SRS resource set, N SRS In the embodiment of the present application, when the maximum number of physical uplink shared channel (PUSCH) transmission layers is increased to 8 layers, the number of SRSs that can be configured in the SRS resource set is N SRSThe number of SRS resources that can be set is increased from four to eight. That is, the set of configuration numbers includes the existing first candidate number and the newly added second candidate number, among which the first candidate number includes 1 to 4, and the newly added second candidate number includes 5 to 8.

[0066] Step S32: according to the second uplink data transmission layer number and the set of configuration numbers, extend the first SRI mapping table to obtain a second SRI mapping table.

[0067] For each first uplink data transmission layer number, extend the first mapping relationship between the SRI index value and the SRS resource combination in the second candidate number, and extend the first SRI mapping table according to the first mapping relationship to obtain a second SRI mapping table. That is, for the first layer of uplink data transmission to the fourth layer of uplink data transmission, the first SRI mapping table already includes the mapping relationship between the SRI index value and the SRS resource combination in the first candidate number, that is, the first SRI mapping table includes N SRS The mapping relationship between the SRI index value and the SRS resource combination at N = 1 / 2 / 3 / 4 has already been included. In the embodiment of the present application, for each first uplink data transmission layer number, the first mapping relationship between the SRI index value and the SRS resource combination at the second candidate number is extended, that is, N SRS The first mapping relationship between the SRI index value and the SRS resource combination when the first layer is N = 5 / 6 / 7 / 8 is extended. SRS Increase the first mapping relationship between the SRI index value and the SRS resource combination at time =5 / 6 / 7 / 8.

[0068] [Table 1] Each element in Table 1 exists independently, and although these elements are listed in the same table as an example, not all elements shown in the table must exist at the same time. The value of each element is a value that does not depend on the values ​​of other elements in Table 1. Therefore, a person skilled in the art can understand that the values ​​of each element in Table 1 are all independent examples.

[0069] Furthermore, the first SRI mapping table is expanded based on the first mapping relationship to obtain a third SRI mapping table for each first uplink data transmission layer number, that is, the first to fourth layers each have their own third SRI mapping table, that is, the newly added first mapping relationship is combined with the mapping relationship in the existing first SRI mapping table to obtain the third SRI mapping table. The third SRI mapping table in the embodiment of the present application is N SRS = 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 times, including a mapping relationship between the SRI index value and the SRS resource combination. In the embodiment of the present application, multiplexing of the first SRI mapping table of the existing first uplink data transmission layer number is realized.

[0070] For each second uplink data transmission layer number, the second mapping relationship between the SRI index value and the SRS resource combination in each candidate number in the set number set is extended, and a fourth SRI mapping table is obtained based on the second mapping relationship. That is, for the 5th layer of uplink data transmission to the 8th layer of uplink data transmission, there is no existing first SRI mapping table, and for the 5th to 8th layers, the second mapping relationship between the SRI index value and the SRS resource combination in each candidate number, i.e., N SRSIt is necessary to extend and set a second mapping relationship between the SRI index value and the SRS resource combination when extending SRI index value=1 / 2 / 3 / 4 / 5 / 6 / 7 / 8. Furthermore, the first SRI mapping table is extended according to the second mapping relationship to obtain a fourth SRI mapping table for each second uplink data transmission layer number, that is, each of the fifth to eighth layers has its own fourth SRI mapping table.

[0071] The network device determines the third SRI mapping table and the fourth SRI mapping table as second SRI mapping tables, i.e., the second SRI mapping table is a set, including a second SRI mapping table extended for each first uplink data transmission layer number, and further including a fourth SRI mapping table extended for each second uplink data transmission layer number, and the total number of the second SRI mapping tables is 8, which is equal to the value of the maximum uplink data transmission layer number supported by the terminal device.

[0072] Step S33, receive precoded SRS resources in the SRS resource set sent by the terminal device, and determine a first SRS resource combination from the SRS resource set according to the precoded SRS resources.

[0073] Step S34: determine a precoding matrix and a corresponding third uplink data transmission layer number according to the first SRS resource combination.

[0074] For the implementation of steps S33 to S34, the relevant contents in the above embodiment can be referred to, and the description thereof will be omitted here.

[0075] Step S35: determine an SRI mapping table corresponding to a third uplink data transmission layer number from the third SRI mapping table and the fourth SRI mapping table.

[0076] In the embodiment of the present application, the third SRI mapping table and the fourth SRI mapping table correspond to different uplink data transmission layer numbers. After determining the third uplink data transmission layer number, the SRI mapping table corresponding to the third uplink data transmission layer number can be determined according to the third SRI mapping table to the fourth SRI mapping table. For example, when the third uplink data transmission layer number is 1, the second SRI mapping table corresponding to the first layer can be the SRI mapping table corresponding to the third uplink data transmission layer number.

[0077] Step S36: determine an SRI index value corresponding to the first SRS resource combination from an SRI mapping table corresponding to the third uplink data transmission layer number, and indicate the SRI index value to the terminal device.

[0078] Wherein, the SRI mapping table corresponding to the third uplink data transmission layer number includes a mapping relationship between different SRS resource combinations and different SRI index values. In the embodiment of the present application, the first SRS resource combination, i.e., the SRS resource number in the first SRS resource combination and the SRS resource set corresponding to N SRS According to the above, an SRI index value corresponding to the first SRS resource combination can be determined from an SRI mapping table corresponding to the third uplink data transmission layer number, and the SRI index value can be indicated to the terminal device. Optionally, the SRI index value is indicated to the terminal device through an SRI indication field.

[0079] In the embodiment of the present application, the maximum number of uplink data transmission layers L max Based on this, the existing first SRI mapping table is extended to include the newly added uplink data transmission layer number and the newly added N SRSFilling in the blanks of the SRI mapping relationship corresponding to the second SRI mapping table, and providing a basis for enhancing the uplink transmission capability. In addition, based on the configured second SRI mapping table, the terminal device is instructed on the precoding matrix required for the actual transmission of the PUSCH, which is favorable for providing the safety, reliability and accuracy of the transmission of the PUSCH, and can select a precoding matrix that meets the PUSCH transmission requirements, and can avoid resource collisions with other terminal devices.

[0080] Referring to Figure 4, Figure 4 is a flowchart of a PUSCH information transmission method based on a non-codebook provided by an embodiment of the present application. As shown in Figure 4, the method is performed by a network device, and can include, but is not limited to, the following steps: Step S41: In response to increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, the maximum number of uplink data transmission layers L supported by the terminal device is increased. max and the existing first uplink data transmission layer number, determine a newly added second uplink data transmission layer number and a configuration number set corresponding to the SRS resource set configured in the terminal device.

[0081] For the implementation of step S41, the relevant content in the above embodiment can be referred to, and the description will be omitted here.

[0082] Step S42: according to the second uplink data transmission layer number and the set number set, extend the first SRI mapping table to obtain a third RI mapping table and a fourth SRI mapping table.

[0083] For the implementation of step S42, the relevant content in the above embodiment can be referred to, and the description will be omitted here.

[0084] Step S43: obtain a restricted SRI mapping table as a second SRI mapping table according to the third SRI mapping table and the fourth SRI mapping table.

[0085] Wherein, each first uplink data transmission layer number corresponds to a second SRI mapping table, and the second SRI mapping is N SRS The mapping relationship between the SRI index value and the SRS resource combination corresponding to the time of = 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8. Each second uplink data transmission layer number corresponds to one fourth SRI mapping table, and the fourth SRI mapping table is N SRS = Includes the mapping relationship between the SRI index value and the SRS resource combination corresponding to 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 times.

[0086] In an embodiment of the present application, a third mapping relationship between some SRI index values ​​and SRS resource combinations is selected from a second SRI mapping table corresponding to a first uplink data transmission layer number, and a fourth mapping relationship between some SRI index values ​​and SRS resource combinations is selected from a fourth SRI mapping table corresponding to each second uplink data transmission layer number, and the network device generates a restricted SRI mapping table based on the selected third mapping relationship and the fourth mapping relationship, and in an embodiment of the present application, determines the restricted SRI mapping table as an extended second SRI mapping table.

[0087] For example, from each of the third SRI mapping tables and each of the fourth SRI mapping tables, SRSA restricted SRI table can be configured by selecting some mapping relationships under the above, and the selected rule may be based on the protocol agreement or upper layer instruction. Furthermore, for example, a mapping relationship between 32 SRI index values ​​and SRS resource combinations can be selected from each of the third SRI mapping tables and each of the fourth SRI mapping tables, so that a maximum of 5 bits are required to indicate the SRI. Also, for example, when selecting, each N SRS or part of N SRS The rule may be combined with all uplink data transmission layers, or may be combined with each uplink data transmission layer number, or may be combined with some uplink data transmission layers number. The selected rule is not limited in this application. The following Table 2 provides a schematic table of the restricted SRI mapping table.

[0088] Table 2 [Table 2] [Table 3] Each element in Table 2 exists independently, and although these elements are listed in the same table as an example, not all elements shown in the table must exist at the same time. The value of each element is a value that does not depend on the values ​​of other elements in Table 2. Therefore, a person skilled in the art can understand that the values ​​of each element in Table 2 are all independent examples.

[0089] Step S44: receive precoded SRS resources in the SRS resource set sent by the terminal device, and determine a first SRS resource combination from the SRS resource set according to the precoded SRS resources.

[0090] For the process in which the terminal device transmits the precoded SRS resource of the SRS resource set to the network device, reference may be made to the relevant content described in the above embodiments, and the description will be omitted here.

[0091] In the embodiment of the present application, the network device selects one first SRS resource combination from the SRS resource set according to the precoded SRS resource, and obtains an SRI index value corresponding to the first SRS resource combination from the restricted SRI mapping table when it is determined that the first SRS resource combination exists in the restricted SRI mapping table. If it is determined that the first SRS resource combination does not exist in the restricted SRI mapping table, it needs to reselect the SRS resource combination existing in the restricted SRI mapping table and update it to the first SRS resource combination, i.e., determine the reselected SRS resource combination as the first SRS resource combination. That is, the network device selects the first SRS resource combination according to the precoded SRS resource, and the first SRS resource combination needs to be the SRS resource combination existing in the restricted SRI mapping table.

[0092] Step S45: determine an SRI index value corresponding to the first SRS resource combination from the restricted SRI mapping table, and indicate the SRI index value to the terminal device.

[0093] Wherein, the restricted SRI mapping table includes a mapping relationship between different SRS resource combinations and different SRI index values. In the embodiment of the present application, the restricted SRI mapping table is a first SRS resource combination, i.e., N corresponding to the number of SRS resources in the first SRS resource combination and the SRS resource set. SRS Based on this, it is necessary to determine an SRI index value corresponding to the first SRS resource combination from the restricted SRI mapping table, and indicate the SRI index value to the terminal device.

[0094] Optionally, an SRI index value is indicated to the terminal device through an SRI indication field. Optionally, the SRI index value can be further used to indicate to the terminal device a TRI corresponding to a precoding matrix used for the actual transmission of the PUSCH, and the TRI is used to indicate a third uplink data transmission layer number used for the actual transmission of the PUSCH.

[0095] Alternatively, the network device may send the restricted SRI mapping table to the terminal device via a first higher layer signaling. Alternatively, the network device may further instruct the terminal device to update the restricted SRI mapping table based on a second higher layer signaling, and may optionally update all or a part of the mapping relationships in the restricted SRI mapping table. The first higher layer signaling and the second higher layer signaling may include RRC signaling and / or Media access control-Control Element (MAC-CE) signaling, for example, the restricted SRI mapping table may be sent to the terminal device via RRC signaling, and when the restricted SRI mapping table needs to be updated, the whole or a part of the mapping relationships in the restricted SRI mapping table are set or updated via MAC-CE signaling. Alternatively, one new SRI mapping sub-table is sent via RRC signaling to completely update the first SRI mapping sub-table. Alternatively, the MAC-CE signaling may include a mapping relationship between one or more SRS resource combinations and SRI index values, and may update the restricted SRI mapping table based on the mapping relationships, for example, may add the mapping relationships to the restricted SRI mapping table, and may also use the mapping relationships to replace some existing mapping relationships in the restricted SRI mapping table. The replaced mapping relationships may be indicated through higher layer signaling.

[0096] In the embodiment of the present application, the maximum number of uplink data transmission layers L max Based on this, the existing first SRI mapping table is extended to include the newly added uplink data transmission layer number and the newly added N SRS Filling in the blanks of the SRI mapping relationship corresponding to the second SRI mapping table, and providing a basis for enhancing the uplink transmission capability. In addition, based on the configured second SRI mapping table, the terminal device is instructed on the precoding matrix required for the actual transmission of the PUSCH, which is favorable for providing the safety, reliability and accuracy of the transmission of the PUSCH, and can select a precoding matrix that meets the PUSCH transmission requirements, and can avoid resource collisions with other terminal devices.

[0097] Referring to Figure 5, Figure 5 is a flowchart of a PUSCH information transmission method based on a non-codebook provided by an embodiment of the present application. As shown in Figure 5, the method is performed by a network device, and can include, but is not limited to, the following steps: Step S51, in response to increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, the maximum number of uplink data transmission layers L supported by the terminal device is increased to 8 layers. max and the existing first uplink data transmission layer number, determine a newly added second uplink data transmission layer number and a configuration number set corresponding to the SRS resource set configured in the terminal device.

[0098] Step S52: extending the first SRI mapping table according to the second uplink data transmission layer number and the set of configuration numbers to obtain a third SRI mapping table and a fourth SRI mapping table.

[0099] Step S53, receive precoded SRS resources in the SRS resource set sent by the terminal device, and determine a first SRS resource combination from the SRS resource set according to the precoded SRS resources.

[0100] Step S54: determining a third uplink data transmission layer number corresponding to the first SRS resource combination.

[0101] For the implementation of steps S51 to S54, the relevant contents in the above embodiment can be referred to, and the description thereof will be omitted here.

[0102] Step S55: grouping the SRI mapping table corresponding to the third uplink data transmission layer number, and obtaining a candidate SRI mapping sub-table corresponding to the third uplink data transmission layer number.

[0103] Wherein, the SRI mapping table corresponding to the third uplink data transmission layer number is one among the third SRI mapping table and the fourth SRI mapping table. After determining the SRI mapping table corresponding to the third uplink data transmission layer number, the SRI mapping tables can be grouped to obtain multiple candidate SRI mapping sub-tables.

[0104] For example, N SRS Group according to one or more N SRSinto a plurality of candidate SRS mapping sub-tables; or group the SRI mapping table corresponding to the third uplink data transmission layer number by row to obtain a plurality of candidate SRI mapping sub-tables, for example, each candidate SRI candidate sub-table can include the same number of rows or can include different numbers of rows; or group the SRI mapping table corresponding to the third uplink data transmission layer number by column to obtain a plurality of candidate SRI mapping sub-tables, for example, each candidate SRI candidate sub-table can include the same number of columns or can include different numbers of columns. This application does not limit the specific grouping manner.

[0105] Step S56: determine a first SRI mapping sub-table in which the first SRS resource combination exists from the candidate SRI mapping sub-tables.

[0106] SRS resource numbers included in the first SRS resource combination and N corresponding to the SRS resource set SRS For example, a first SRI mapping sub-table in which the first SRS resource combination exists can be determined from the plurality of candidate SRI mapping sub-tables based on the above. SRS and determining a first candidate SRS mapping sub-table corresponding to the first SRS resource combination from the first candidate SRS mapping sub-table based on an SRS resource number included in the first SRS resource combination. Further, for example, a second candidate SRS mapping sub-table including the first SRS resource combination can be determined from a plurality of candidate SRI mapping sub-tables based on an SRS resource number included in the first SRS resource combination, and further determining N candidate SRS mapping sub-tables including the first SRS resource combination from the plurality of candidate SRI mapping sub-tables based on an SRS resource number included in the first SRS resource combination. SRS The first SRS mapping sub-table may be determined from the second candidate SRS mapping sub-table based on:

[0107] Step S57: determine a first SRI index value corresponding to the first SRS resource combination from the first SRI mapping sub-table, and send to the terminal device.

[0108] Wherein, the first SRI mapping sub-table includes a mapping relationship between different SRS resource combinations and different SRI index values. In the embodiment of the present application, based on the first SRS resource combination, i.e., the number of the SRS resource in the first SRS resource combination, an SRI index value corresponding to the first SRS resource combination can be determined from the first SRI mapping sub-table, and the SRI index value can be indicated to the terminal device.

[0109] Optionally, an SRI index value is indicated to the terminal device via an SRI indication field. Optionally, the SRI index value can be further used to indicate to the terminal device a third uplink data transmission layer number corresponding to a precoding matrix used for actual transmission of the PUSCH.

[0110] Alternatively, the network device may transmit the first SRI mapping sub-table to the terminal device via a third higher layer signaling. Alternatively, the network device may instruct the terminal device to update the first SRI mapping sub-table based on a fourth higher layer signaling. For example, the network device may update all or part of the mapping relationship in the first SRI mapping sub-table. The third higher layer signaling and the fourth higher layer signaling may include RRC signaling and / or MAC-CE signaling, for example, the first SRI mapping sub-table may be transmitted to the terminal device via RRC signaling, and when the first SRI mapping sub-table needs to be updated, the network device sets or updates all or part of the mapping relationship in the first SRI mapping sub-table via RRC signaling or MAC-CE signaling. Alternatively, the network device transmits one new SRI mapping sub-table via RRC signaling to fully update the first SRI mapping sub-table. Alternatively, the MAC-CE signaling may include a mapping relationship between one or more SRS resource combinations and SRI index values, and the first SRI mapping sub-table may be updated based on the mapping relationships, for example, the first SRI mapping sub-table may be augmented with the mapping relationships, and the mapping relationships may also be used to replace some existing mapping relationships in the first SRI mapping sub-table. The replaced mapping relationships may be indicated via higher layer signaling.

[0111] In the embodiment of the present application, the maximum number of uplink data transmission layers L max Based on this, the existing first SRI mapping table is extended to include the newly added uplink data transmission layer number and the newly added N SRSFilling in the blanks of the SRI mapping relationship corresponding to the second SRI mapping table, and providing a basis for enhancing the uplink transmission capability. In addition, based on the configured second SRI mapping table, the terminal device is instructed on the precoding matrix required for the actual transmission of the PUSCH, which is favorable for providing the safety, reliability and accuracy of the transmission of the PUSCH, and can select a precoding matrix that meets the PUSCH transmission requirements, and can avoid resource collisions with other terminal devices.

[0112] Referring to Figure 6, Figure 6 is a flowchart of a PUSCH information transmission method based on a non-codebook provided by an embodiment of the present application. As shown in Figure 6, the method is performed by a terminal device, and can include, but is not limited to, the following steps: Step S61: in response to increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, obtain a second SRI mapping table, and the second SRI mapping table is obtained by extending an existing first SRI mapping table.

[0113] In the embodiment of the present application, the number of uplink data transmission layers of the terminal device is increased to 8 layers, that is, the terminal device can increase the maximum PUSCH transmission support to 8 layers, and can further be used to support a higher uplink transmission rate compared to the downlink. The first uplink data transmission layer in the embodiment of the present application is an uplink data transmission layer corresponding to the PUSCH shared channel transmission conventionally supported by a single terminal, and the second uplink data transmission layer is a newly increased uplink data transmission layer on the basis of the conventional first uplink data transmission layer. For example, the uplink data transmission layer corresponding to the conventional PUSCH is layer 1-4, and layer 1-4 is the first uplink data transmission. In the present application, when the new increase to 8 layers is made, the second uplink data transmission layer is layer 5 to layer 8.

[0114] Each first uplink data transmission layer corresponds to a first SRI mapping table, and the SRI mapping table includes a correspondence relationship between an SRI index value and an SRS resource combination, i.e., an SRI index value can index to a corresponding SRS resource combination, in which the SRS resource combination includes one or more SRS resources of an SRS resource set that a network device configures for a terminal device.

[0115] In an embodiment of the present application, when the maximum number of physical uplink shared channel (PUSCH) transmission layers is increased to 8 layers, the maximum number of uplink data transmission layers supported by the terminal device is L max = 8, and the existing first SRI mapping table does not cover layers 5 to 8 of uplink data transmission and can support upload data transmission of up to 8 layers. Therefore, there is a need to extend the existing first SRI mapping table to cover layers 5 to 8 of uplink data transmission and support upload data transmission of up to 8 layers.

[0116] Optionally, the network device may have a maximum uplink data transmission layer number L max and the existing first uplink data transmission layer number, and determine a configuration number set corresponding to a newly added second uplink data transmission layer number and a probe reference signal (SRS) resource set configured in the terminal device, and the configuration number set is the number N of SRS resources configured in the SRS resource set. SRS In the embodiment of the present application, when the maximum number of physical uplink shared channel (PUSCH) transmission layers is increased to 8 layers, the number of SRSs that can be configured in the SRS resource set is N SRS increases from being able to configure four SRS resources to being able to configure eight SRS resources.

[0117] Further, the network device extends the first SRI mapping table based on a second uplink data transmission layer number and a set of setting numbers to obtain a second SRI mapping table, which can cover uplink data transmission from layer 1 to layer 8.

[0118] As a possible implementation, the maximum number of uplink data transmission layers L max According to the set of numbers, the first SRI mapping table can be expanded to expand one SRI mapping table corresponding to each uplink data transmission layer number, and the expanded SRI mapping table can be SRS , and an index value corresponding to the SRS resource combination. That is, eight SRI mapping tables are set, and each SRI mapping table includes N SRS = 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8, and the corresponding SRS resource combinations and corresponding SRI index values. Note that, the extended SRI mapping table corresponding to each uplink data transmission layer number is a second SRI mapping table.

[0119] In another possible implementation, a second SRI mapping table including a part of SRI mapping relationships determined by a network device can be received, where the second SRI mapping table can include a part of the contents of all SRI mapping relationships corresponding to each uplink data transmission layer number. For example, a part can be selected from the extended SRI mapping table corresponding to each uplink data transmission layer number to configure a second SRI mapping table with a restriction. Furthermore, for example, the second SRI mapping table can include a part of the mapping relationships in all SRI mapping relationships corresponding to one of the uplink data transmission layer numbers, that is, the second SRI mapping table is an SRI mapping sub-table configured with a part of the mapping relationships corresponding to one of the uplink data transmission layer numbers.

[0120] Optionally, the terminal device may have a maximum uplink data transmission layer number L max According to the set of set numbers, the first SRI mapping table can be extended to extend a second SRI mapping table including a part of SRI mapping relationships. In some implementations, the second SRI mapping table can include a part of the contents of all the SRI mapping relationships corresponding to each uplink data transmission layer number. For example, a part of the extended SRI mapping table corresponding to each uplink data transmission layer number can be selected to configure a second SRI mapping table with one restriction.

[0121] Step S62: receive an SRI index value sent by a network device, and determine a first SRS resource combination from a second SRI mapping table according to the SRI index value.

[0122] Wherein, the first SRS resource combination is a combination formed by SRS resources selected from an SRS resource set, and includes at least one single-port SRS resource.

[0123] The terminal device obtains an SRS resource set, one of whose functions is a non-codebook, from the network device via higher layer signaling. For example, the terminal device can receive RRC signaling or MAC-CE signaling, and obtain the SRS resource set configured by the network device from the RRC signaling or MAC-CE signaling. Alternatively, the SRS resource set can be configured or reconfigured via RRC, and some or all of the settings can also be updated via MAC-CE.

[0124] Optionally, the time domain characteristic of the SRS resource set is periodic, semi-persistent or aperiodic, that is, the SRS resource set may be a periodic SRS resource set, or a semi-persistent SRS resource set, or an aperiodic SRS resource set. In the embodiment of the present application, there are one or more single-port SRS resources in the SRS resource set.

[0125] In an embodiment of the present application, after the terminal device obtains the SRS resource set configured by the network device, it can precode the SRS resource configured in the SRS resource set according to an initial precoding matrix, and send the SRS resource to the network device using precoding. The precoded SRS resource can be used to obtain CSI, and can further obtain channel estimation information, which can reflect scheduling information such as channel conditions, multi-user interference situations, and / or channel noise.

[0126] For the process of the terminal device obtaining the initial pre-coding matrix, reference may be made to the relevant content described in the above embodiments, and the description will be omitted here.

[0127] For the process of the network device determining the first SRS resource combination, the precoding matrix, and the corresponding third uplink data transmission layer number from the SRS resource set based on the precoded SRS resource, the network device may refer to the relevant content descriptions in the above embodiments, and the description will be omitted here.

[0128] Further, the network device can determine, according to the third uplink data transmission layer number, from the second SRI mapping table, an SRI mapping relationship corresponding to the third uplink data transmission layer number, and determine an SRI index value corresponding to the first SRS resource combination from the mapping relationship corresponding to the third uplink data transmission layer number, and the network device indicates the first SRS resource combination to the terminal device according to the SRI index value.

[0129] Alternatively, the terminal device receives the SRI sent by the network device through higher layer signaling, and indicates the SRI index value to the terminal device through the SRI indication field.

[0130] Step S63: determine a precoding matrix used for PUSCH transmission according to the first SRS resource combination.

[0131] Optionally, the terminal device selects an initial precoding matrix based on a first SRS resource combination to obtain a precoding matrix used for the actual transmission of the USCH. In an embodiment of the present application, the first SRS resource combination includes one or more single-port SRS resources, and the one or more single-port SRSs are SRS resources suitable for PUSCH transmission selected by the network device in the SRS resource set. The terminal device determines a precoding vector corresponding to be used for the selected single-port SRS resource, and determines a precoding matrix used for the actual transmission of the PUSCH based on the precoding vector corresponding to be used for the selected single-port SRS resource. The precoding vector is one vector of the initial precoding matrix. Optionally, the precoding vectors used for the SRS resources in the first SRS resource combination are combined according to the number sequence of the SRS resources to obtain a precoding matrix used for the actual transmission of the PUSCH.

[0132] Take as an example, the initial precoding matrix is ​​H=[V0, V1, V2, V3, V4, V5, V6, V7], the SRS resource numbers are #0 to #7, and each SRS resource port corresponds to one precoding vector, for example, SRS resource #0 corresponds to V0, SRS resource #1 corresponds to V1, SRS resource #2 corresponds to V2, SRS resource #3 corresponds to V3, and by analogy, SRS resource #7 corresponds to V7. When the numbers included in the determined first SRS resource combination are SRS resources #0, #1, #4, and #5, the terminal device obtains the precoding matrix used for the actual transmission of PUSCH by combining V0, V1, V4, and V5 corresponding to these SRS resources from the second SRI mapping table based on the SRI index value.

[0133] In the embodiment of the present application, after the existing first SRI mapping table is extended, the extended second SRI mapping table is updated based on the number of uplink data transmission layers newly added by extending the SRI mapping table and the number of newly added N SRS The blank of the SRI mapping relationship corresponding to the second SRI mapping table can be filled, providing a basis for enhancing uplink transmission capability. In addition, the precoding matrix required for the actual transmission of the PUSCH can be indicated to the terminal device based on the configured second SRI mapping table, which is favorable for providing security, reliability and accuracy of the transmission of the PUSCH, and a precoding matrix that meets the PUSCH transmission requirements can be selected, and resource collisions with other terminal devices can be avoided.

[0134] Referring to Figure 7, Figure 7 is a flowchart of a method for receiving PUSCH information based on a non-codebook provided by an embodiment of the present application. As shown in Figure 7, the method is performed by a terminal device, and may include, but is not limited to, the following steps: Step S71, in response to increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, the maximum number of uplink data transmission layers L supported by the terminal device is increased to 8 layers. max and the existing first uplink data transmission layer number, determine a newly added second uplink data transmission layer number and a configuration number set corresponding to the SRS resource set configured in the terminal device.

[0135] The number of settings is the number of SRS resources set in the SRS resource set, N SRS In the embodiment of the present application, when the maximum number of physical uplink shared channel (PUSCH) transmission layers is increased to 8 layers, the number of SRSs that can be configured in the SRS resource set is N SRS The number of SRS resources that can be set is increased from four to eight. That is, the set of configuration numbers includes the existing first candidate number and the newly added second candidate number, among which the first candidate number includes 1 to 4, and the newly added second candidate number includes 5 to 8.

[0136] Step S72: according to the second uplink data transmission layer number and the set of configuration numbers, extend the first SRI mapping table to obtain a second SRI mapping table.

[0137] For each first uplink data transmission layer number, extend the first mapping relationship between the SRI index value and the SRS resource combination in the second candidate number, and extend the first SRI mapping table according to the first mapping relationship to obtain a second SRI mapping table. That is, for the first layer of uplink data transmission to the fourth layer of uplink data transmission, the first SRI mapping table already includes the mapping relationship between the SRI index value and the SRS resource combination in the first candidate number, that is, the first SRI mapping table includes N SRSThe mapping relationship between the SRI index value and the SRS resource combination at N = 1 / 2 / 3 / 4 has already been included. In the embodiment of the present application, for each first uplink data transmission layer number, the first mapping relationship between the SRI index value and the SRS resource combination at the second candidate number is extended, that is, N SRS Extend the first mapping relationship between the SRI index value and the SRS resource combination at time =5 / 6 / 7 / 8.

[0138] Furthermore, the first SRI mapping table is expanded based on the first mapping relationship to obtain a third SRI mapping table for each first uplink data transmission layer number, that is, the first to fourth layers each have their own third SRI mapping table, that is, the newly added first mapping relationship is combined with the mapping relationship in the existing first SRI mapping table to obtain the third SRI mapping table. The third SRI mapping table in the embodiment of the present application is N SRS = 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 times, including a mapping relationship between the SRI index value and the SRS resource combination. In the embodiment of the present application, multiplexing of the first SRI mapping table of the existing first uplink data transmission layer number is realized.

[0139] For each second uplink data transmission layer number, the second mapping relationship between the SRI index value and the SRS resource combination in each candidate number in the set number set is extended, and a fourth SRI mapping table is obtained based on the second mapping relationship. That is, for the 5th layer of uplink data transmission to the 8th layer of uplink data transmission, there is no existing first SRI mapping table, and for the 5th to 8th layers, the second mapping relationship between the SRI index value and the SRS resource combination in each candidate number, i.e., N SRSIt is necessary to extend and set a second mapping relationship between the SRI index value and the SRS resource combination when extending SRI index value=1 / 2 / 3 / 4 / 5 / 6 / 7 / 8. Furthermore, the first SRI mapping table is extended according to the second mapping relationship to obtain a fourth SRI mapping table for each second uplink data transmission layer number, that is, each of the fifth to eighth layers has its own fourth SRI mapping table.

[0140] The terminal device determines the third SRI mapping table and the fourth SRI mapping table as second SRI mapping tables, i.e., the second SRI mapping table is a set, including a second SRI mapping table extended for each first uplink data transmission layer number, and further including a fourth SRI mapping table extended for each second uplink data transmission layer number, and the total number of the second SRI mapping tables is 8, which is equal to the value of the maximum uplink data transmission layer number supported by the terminal device.

[0141] Step S73, receive the SRI index value sent by the network device.

[0142] Alternatively, the terminal device receives an SRS resource set configured by the network device, precodes the SRS resources in the SRS resource set based on an initial precoding matrix, and sends the precoded SRS resources to the network device. For specific processes, reference may be made to the relevant contents described in the above embodiments, and description thereof will be omitted here.

[0143] The network device indicates an SRI index value determined based on the first SRS resource combination to the terminal device via the SRI.

[0144] Step S74: determining a third uplink data transmission layer number corresponding to the pre-coding matrix.

[0145] Alternatively, the SRI index value may indicate a third uplink data transmission layer number corresponding to the precoding matrix, for example, a corresponding relationship between each SRI index value and each uplink data transmission layer number is set, and a corresponding third uplink data transmission layer number may be determined based on the corresponding relationship based on the SRI index value. Alternatively, an indication information TRI of the data transmission layer number indicated by the network device is received, and the third uplink data transmission layer number is determined based on the TRI.

[0146] Step S75: determine an SRI mapping table corresponding to a third uplink data transmission layer number from the third SRI mapping table and the fourth SRI mapping table.

[0147] In the embodiment of the present application, the third SRI mapping table and the fourth SRI mapping table correspond to different uplink data transmission layer numbers. After determining the third uplink data transmission layer number, the SRI mapping table corresponding to the third uplink data transmission layer number can be determined according to the third SRI mapping table to the fourth SRI mapping table. For example, when the third uplink data transmission layer number is 1, the second SRI mapping table corresponding to the first layer can be the SRI mapping table corresponding to the third uplink data transmission layer number.

[0148] Step S76: determine an indexed SRS resource combination from an SRI mapping table corresponding to the third uplink data transmission layer number according to the SRI index value, and determine a first SRS resource combination.

[0149] Wherein, the first SRS resource combination is a combination formed by SRS resources selected from an SRS resource set, and includes at least one single-port SRS resource.

[0150] Wherein, the SRI mapping table corresponding to the third uplink data transmission layer number includes a mapping relationship between different SRS resource combinations and different SRI index values. In the embodiment of the present application, N corresponding SRI index values ​​and SRS resource sets are SRS Based on this, a first SRS resource combination corresponding to an SRI index value can be determined from an SRI mapping table corresponding to a third uplink data transmission layer number.

[0151] Step S77: determine a precoding matrix used for actual transmission of the PUSCH according to the first SRS resource combination.

[0152] For the implementation of step S76, the relevant content in the above embodiment can be referred to, and the description will be omitted here.

[0153] In the embodiment of the present application, after the existing first SRI mapping table is extended, the extended second SRI mapping table is updated based on the number of uplink data transmission layers newly added by extending the SRI mapping table and the number of newly added N SRS The blank of the SRI mapping relationship corresponding to the second SRI mapping table can be filled, providing a basis for enhancing uplink transmission capability. In addition, the precoding matrix required for the actual transmission of the PUSCH can be indicated to the terminal device based on the configured second SRI mapping table, which is favorable for providing security, reliability and accuracy of the transmission of the PUSCH, and a precoding matrix that meets the PUSCH transmission requirements can be selected, and resource collisions with other terminal devices can be avoided.

[0154] Referring to Figure 8, Figure 8 is a flowchart of a method for receiving PUSCH information based on a non-codebook provided by an embodiment of the present application. As shown in Figure 8, the method is performed by a terminal device, and may include, but is not limited to, the following steps: Step S81: in response to increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, obtain a restricted SRI mapping table, where the restricted SRI mapping table is a second SRI mapping table.

[0155] Wherein, the restricted SRI mapping table includes a part of third mapping relations selected from the third SRI mapping table and a part of fourth mapping relations selected from the fourth SRI mapping table, the second SRI mapping table is a mapping table of the existing first uplink data transmission layer number, and the fourth SRI mapping table is a mapping table of the newly added second uplink data transmission layer number.

[0156] For the process of determining the third SRI mapping table and the fourth SRI mapping table, reference may be made to the relevant content described in the above embodiment, and the description will be omitted here.

[0157] For the description of the first uplink data transmission layer number and the second uplink data transmission layer number, reference may be made to the relevant content description in the above embodiment, and the description will be omitted here.

[0158] In a possible implementation, the terminal device selects a part of the third SRI mapping relationship from the third SRI mapping table according to the agreement, and selects a part of the fourth SRI mapping relationship from the fourth SRI mapping table, and determines a restricted SRI mapping table according to the selected third SRI mapping relationship and the fourth SRI mapping relationship. For the description of the restricted SRI mapping table and the selection manner of the part of the mapping relationship selected from the third SRI mapping table and the fourth SRI mapping table, reference may be made to the relevant contents described in the above embodiments, and description thereof will be omitted here.

[0159] As another possible implementation form, the terminal device may receive the restricted SRI mapping table sent by the network through a first higher layer signaling, where the first higher layer signaling and the second higher layer signaling may include RRC signaling and / or MAC-CE signaling.

[0160] Alternatively, the terminal device may further update the contents of the whole or part of the restricted SRI mapping table through a second higher layer signaling, and may optionally update the whole or part of the mapping relationship in the restricted SRI mapping table. The first higher layer signaling and the second higher layer signaling may include RRC signaling and / or MAC-CE signaling, for example, the restricted SRI mapping table may be transmitted to the terminal device through RRC signaling, and when the restricted SRI mapping table needs to be updated, the whole or part of the mapping relationship in the restricted SRI mapping table is set or updated through MAC-CE signaling. Alternatively, one new SRI mapping sub-table is transmitted through RRC signaling to completely update the first SRI mapping sub-table. Alternatively, the MAC-CE signaling may include a mapping relationship between one or more SRS resource combinations and SRI index values, and may update the restricted SRI mapping table based on the mapping relationships, for example, may add the mapping relationships to the restricted SRI mapping table, and may also use the mapping relationships to replace some existing mapping relationships in the restricted SRI mapping table. The replaced mapping relationships may be indicated through higher layer signaling.

[0161] Step S82, receive the SRI index value sent by the network device.

[0162] For the implementation of step S82, the relevant content in the above embodiment can be referred to, and the description will be omitted here.

[0163] Step S83: determine an SRS resource combination indicated by the SRI index value from the restricted SRI mapping table, and determine a first SRS resource combination.

[0164] Wherein, the first SRS resource combination is a combination formed by SRS resources selected from an SRS resource set, and includes at least one single-port SRS resource.

[0165] Alternatively, the SRI index value may indicate a third uplink data transmission layer number corresponding to the precoding matrix, for example, a corresponding relationship between each SRI index value and each uplink data transmission layer number is set, and a corresponding third uplink data transmission layer number may be determined based on the corresponding relationship based on the SRI index value. Alternatively, an indication information TRI of the data transmission layer number indicated by the network device is received, and the third uplink data transmission layer number is determined based on the TRI.

[0166] In the embodiment of the present application, the third SRI mapping table and the fourth SRI mapping table correspond to different uplink data transmission layer numbers. After determining the third uplink data transmission layer number, the SRI mapping table corresponding to the third uplink data transmission layer number can be determined according to the third SRI mapping table to the fourth SRI mapping table. For example, when the third uplink data transmission layer number is 1, the second SRI mapping table corresponding to the first layer can be the SRI mapping table corresponding to the third uplink data transmission layer number.

[0167] Wherein, the SRI mapping table corresponding to the third uplink data transmission layer number includes a mapping relationship between different SRS resource combinations and different SRI index values. In the embodiment of the present application, N corresponding SRI index values ​​and SRS resource sets areSRS Based on this, determine a first SRS resource combination corresponding to the SRI index value from an SRI mapping table corresponding to the third uplink data transmission layer number.

[0168] Step S84: determine a precoding matrix used for PUSCH transmission according to the first SRS resource combination.

[0169] For the implementation of step S85, the relevant content in the above embodiment can be referred to, and the description will be omitted here.

[0170] In the embodiment of the present application, after the existing first SRI mapping table is extended, the extended second SRI mapping table is updated based on the number of uplink data transmission layers newly added by extending the SRI mapping table and the number of newly added N SRS The blank of the SRI mapping relationship corresponding to the second SRI mapping table can be filled, providing a basis for enhancing uplink transmission capability. In addition, the precoding matrix required for the actual transmission of the PUSCH can be indicated to the terminal device based on the configured second SRI mapping table, which is favorable for providing security, reliability and accuracy of the transmission of the PUSCH, and a precoding matrix that meets the PUSCH transmission requirements can be selected, and resource collisions with other terminal devices can be avoided.

[0171] Referring to Figure 9, Figure 9 is a flowchart of a method for receiving PUSCH information based on a non-codebook provided by an embodiment of the present application. As shown in Figure 9, the method is performed by a terminal device, and may include, but is not limited to, the following steps: Step S91: in response to increasing the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to eight layers, receive a first SRI mapping sub-table sent by the network device via a third higher layer signaling, where the first SRI mapping sub-table is a second SRI mapping table, which is a sub-table in the SRI mapping table corresponding to a third uplink data transmission layer number indicated by the first SRS resource combination.

[0172] The terminal device may receive a first SRI mapping sub-table sent by the network through a third higher layer signaling, where the third higher layer signaling may include RRC signaling and / or MCE-CE signaling.

[0173] Alternatively, the terminal device may further update the whole or part of the content of the restricted SRI mapping table through a fourth higher layer signaling, and may optionally update the whole or part of the mapping relationship in the restricted SRI mapping table. The first higher layer signaling and the second higher layer signaling may include RRC signaling and / or MAC-CE signaling, for example, the restricted SRI mapping table may be transmitted to the terminal device through RRC signaling, and when the restricted SRI mapping table needs to be updated, the whole or part of the mapping relationship in the restricted SRI mapping table is set or updated through MAC-CE signaling. Alternatively, one new SRI mapping sub-table is transmitted through RRC signaling to completely update the first SRI mapping sub-table. Alternatively, the MAC-CE signaling may include a mapping relationship between one or more SRS resource combinations and SRI index values, and may update the restricted SRI mapping table based on the mapping relationships, for example, may add the mapping relationships to the restricted SRI mapping table, and may also use the mapping relationships to replace some existing mapping relationships in the restricted SRI mapping table. The replaced mapping relationships may be indicated through higher layer signaling.

[0174] Step S92, receive the SRI index value sent by the network device.

[0175] For the implementation of step S92, the relevant content in the above embodiment can be referred to, and the description will be omitted here.

[0176] Step S93: determine an SRS resource combination indicated by the SRI index value from the first SRI mapping sub-table, and determine a first SRS resource combination.

[0177] Wherein, the first SRS resource combination is a combination formed by SRS resources selected from an SRS resource set, and includes at least one single-port SRS resource.

[0178] Wherein, the first SRI mapping sub-table includes a mapping relationship between different SRS resource combinations and different SRI index values. In the embodiment of the present application, an SRS resource combination of an SRI index value index is determined from the first SRI mapping sub-table, and is determined as the first SRS resource combination.

[0179] Step S94: determine a precoding matrix used for PUSCH transmission according to the first SRS resource combination.

[0180] For the implementation of step S84, the relevant content in the above embodiment can be referred to, and the description will be omitted here.

[0181] In the embodiment of the present application, after the existing first SRI mapping table is extended, the extended second SRI mapping table is updated based on the number of uplink data transmission layers newly added by extending the SRI mapping table and the number of newly added N SRS The blank of the SRI mapping relationship corresponding to the second SRI mapping table can be filled, providing a basis for enhancing uplink transmission capability. In addition, the precoding matrix required for the actual transmission of the PUSCH can be indicated to the terminal device based on the configured second SRI mapping table, which is favorable for providing security, reliability and accuracy of the transmission of the PUSCH, and a precoding matrix that meets the PUSCH transmission requirements can be selected, and resource collisions with other terminal devices can be avoided.

[0182] In the above-mentioned embodiments provided by the present application, the methods provided by the embodiments of the present application are described from the perspective of a terminal device and a network device, respectively. To realize the functions of the methods provided by the above-mentioned embodiments of the present application, the terminal device and the network device may include a hardware structure and a software module, and realize the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure + software module. Some functions of the above-mentioned functions may be implemented in the form of a hardware structure, a software module, or a hardware structure + software module.

[0183] Referring to Fig. 10, it is a schematic configuration diagram of a communication device 100 provided by an embodiment of the present application. The communication device 100 shown in Fig. 10 may include a processing module 101 and a transceiver module 102. The transceiver module 102 may include a transmitting module and / or a receiving module, the transmitting module is used to realize a transmitting function, the receiving module is used to realize a receiving function, and the transceiver module 102 may realize a transmitting function and / or a receiving function.

[0184] The communication device 100 may be a terminal device, a device within a terminal device, or a device that can be used by matching with a terminal device. Alternatively, the communication device 100 may be a network device, a device within a network device, or a device that can be used by matching with a network device.

[0185] The communication device 100 is a network device and includes a processing module 101 and a transceiver module 102. The processing module 101 increases the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, and increases the maximum number of uplink data transmission layers supported by the terminal device L maxbased on the first probe reference signal resource indication (SRI) mapping table to obtain a second SRI mapping table; The transceiver module 102 is used to indicate a precoding matrix to be used for PUSCH transmission, which indicates a first SRS resource combination measured from an SRS resource set to the terminal device based on the second SRI mapping table, where the first SRS resource combination includes at least one single-port SRS resource.

[0186] Optionally, the processing module 101 further comprises: The maximum number of uplink data transmission layers L max and the existing first uplink data transmission layer number, determine a newly added second uplink data transmission layer number and a configuration number set corresponding to an SRS resource set configured in the terminal device, wherein the configuration number set is the number N of SRS resources configured in the SRS resource set. SRS Including, Used to extend the first SRI mapping table according to the second uplink data transmission layer number and the set of configuration numbers to obtain the second SRI mapping table.

[0187] Optionally, the processing module 101 further comprises: For each of the first uplink data transmission layer numbers, extend a first mapping relationship between SRI index values ​​and SRS resource combinations in the second candidate number, and extend the first SRI mapping table according to the first mapping relationship to obtain the second SRI mapping table; For each of the second uplink data transmission layer numbers, a second mapping relationship between the SRI index value and the SRS resource combination in each candidate number in the set of configured numbers is expanded, a fourth SRI mapping table is obtained based on the second mapping relationship, and the third SRI mapping table and the fourth SRI mapping table are used to determine the second SRI mapping table.

[0188] Optionally, the transceiver module 102 further comprises: determining a third uplink data transmission layer number corresponding to the precoding matrix according to the first SRS resource combination; and TRI; Determine an SRI mapping table corresponding to the indicated third uplink data transmission layer number from the third SRI mapping table and the fourth SRI mapping table; It is used to determine an SRI index value corresponding to the first SRS resource combination from an SRI mapping table corresponding to the third uplink data transmission layer number, and to indicate the SRI index value to the terminal device.

[0189] Optionally, the processing module 101 further comprises: Select a third mapping relationship between some SRI index values ​​and SRS resource combinations from a third SRI mapping table corresponding to each of the first uplink data transmission layer numbers; Select a fourth mapping relationship between some SRI index values ​​and SRS resource combinations from a fourth SRI mapping table corresponding to each of the second uplink data transmission layer numbers; A restricted SRI mapping table is used to generate a restricted SRI mapping table based on the selected third mapping relationship and the fourth mapping relationship, where the restricted SRI mapping table is the second SRI mapping table.

[0190] Optionally, when it is determined that the first SRS resource combination exists in the restricted SRI mapping table, the transceiver module 102 further obtains an SRI index value corresponding to the first SRS resource combination from the restricted SRI mapping table, and uses the SRI index value to indicate the terminal device.

[0191] Optionally, the transceiver module 102 further comprises: If it is determined that the first SRS resource combination does not exist in the restricted SRI mapping table, reselect an SRS resource combination that exists in the restricted SRI mapping table and update it to the first SRS resource combination; Used to determine an SRI index value corresponding to the updated first SRS resource combination and indicate the SRI index value to the terminal device.

[0192] Optionally, the transceiver module 102 further comprises: Used for transmitting the restricted SRI mapping table to the terminal device via a first higher layer signaling, and / or for updating all or a part of the restricted SRI mapping table via a second higher layer signaling.

[0193] Optionally, the processing module 101 further comprises: If it is determined that the second SRI mapping table includes the third SRI mapping table and the fourth SRI mapping table, determining a third uplink data transmission layer number used for PUSCH transmission corresponding to the first SRS resource combination; Grouping an SRI mapping table corresponding to the third uplink data transmission layer number, obtaining a candidate SRI mapping sub-table corresponding to the third uplink data transmission layer number, and determining a first SRI mapping sub-table in which the first SRS resource combination exists from the candidate SRI mapping sub-tables; Optionally, the transceiver module 101 further comprises: A first SRI index value corresponding to the first SRS resource combination is determined from the first SRI mapping sub-table and is used for sending to the terminal device.

[0194] Optionally, the transceiver module 102 is further used for transmitting the first SRI mapping sub-table to the terminal device via a third higher layer signaling, and / or updating all or a part of the second SRI mapping table via a fourth higher layer signaling.

[0195] Alternatively, the higher layer signaling includes radio control resource RRC signaling and / or media access control-control unit MAC-CE, and the MAC-CE signaling is used to update the restricted SRI mapping table or the first SRI mapping sub-table.

[0196] The communication device 100 is a terminal device, and includes a processing module 101 and a transceiving module 102. The processing module 101 is used to increase the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to 8 layers, and to obtain a second SRI mapping table, the second SRI mapping table being obtained by extending an existing first SRI mapping table, and used to determine a precoding matrix used for PUSCH transmission based on a first SRS resource combination, the first SRS resource combination being a combination formed by SRS resources selected from an SRS resource set, including at least one single-port SRS resource; The transceiver module 102 is used to receive an SRI index value sent by a network device, and determine the first SRS resource combination from the third SRI mapping table based on the SRI index value.

[0197] Optionally, the processing module 101 further comprises: The maximum number of uplink data transmission layers L supported by the terminal device max Based on this, the existing first probe reference signal resource indication information (SRI) mapping table is used to extend the first SRI mapping table to obtain a second SRI mapping table.

[0198] Optionally, the processing module 101 further comprises: The maximum number of uplink data transmission layers L max and the existing first uplink data transmission layer number, to determine a newly added second uplink data transmission layer number and a configuration number set corresponding to a probe reference signal SRS resource set configured in the terminal device, the configuration number set being the number N of SRS resources configured in the SRS resource set. SRS Including, Used to extend the first SRI mapping table according to the second uplink data transmission layer number and the set of configuration numbers to obtain the second SRI mapping table.

[0199] Optionally, the set of setting numbers includes an existing first candidate number and a newly added second candidate number, and the processing module 101 further comprises: For each of the second uplink data transmission layer numbers, extend a first mapping relationship between SRI index values ​​and SRS resource combinations in the second candidate numbers, and extend the first SRI mapping table according to the first mapping relationship to obtain the third SRI mapping table; For each of the second uplink data transmission layer numbers, extend a second mapping relationship between the SRI index value and the SRS resource combination in each candidate number in the set of configuration numbers, and obtain a fourth SRI mapping table according to the second mapping relationship; The third SRI mapping table and the fourth SRI mapping table are used to determine the second SRI mapping table.

[0200] Optionally, the processing module 101 further comprises: Determine a third uplink data transmission layer number corresponding to the precoding matrix; determining an SRI mapping table corresponding to the third uplink data transmission layer number from the third SRI mapping table and the fourth SRI mapping table; From an SRI mapping table corresponding to the third uplink data transmission layer number, an SRS resource combination indicated by the SRI index value is determined and used to determine it as the first SRS resource combination.

[0201] Optionally, the processing module 101 further comprises: Used to receive a restricted SRI mapping table sent by the network device via a first higher layer signaling, the restricted SRI mapping table is the second SRI mapping table and includes a part of a third mapping relationship selected from a third SRI mapping table and a part of a fourth mapping relationship selected from a fourth SRI mapping table, the mapping relationships are used to indicate a relationship between an SRI index value and an SRS resource combination, the second SRI mapping table is a mapping table of an existing first uplink data transmission layer number, and the fourth SRI mapping table is a mapping table of a newly added second uplink data transmission layer number.

[0202] Optionally, the processing module 102 further comprises: It is used to make a full or partial update to the restricted SRI mapping table via a second higher layer signaling.

[0203] Optionally, the processing module 101 further comprises: From the restricted SRI mapping table, an SRS resource combination indicated by the SRI index value is determined and used to determine as the first SRS resource combination.

[0204] Optionally, the processing module 101 further comprises: Used to receive a first SRI mapping sub-table sent by the network device via a third higher layer signaling, the first SRI mapping sub-table being the second SRI mapping table, a sub-table in the SRI mapping table corresponding to a third uplink data transmission layer number indicated by the first SRS resource combination.

[0205] Optionally, the processing module 101 further comprises: used to perform a full or partial update to the first SRI mapping sub-table via a fourth higher layer signaling; Optionally, the processing module 101 further comprises: From the first SRI mapping sub-table, an SRS resource combination indicated by the SRI index value is determined and used to determine as the first SRS resource combination.

[0206] Optionally, the processing module 101 further comprises: Based on the first SRS resource combination, an initial precoding matrix is ​​selected and used to obtain the precoding matrix.

[0207] Referring to Fig. 11, Fig. 11 is a schematic configuration diagram of another communication device 110 provided by an embodiment of the present application. The communication device 110 may be a terminal device, a network device, a chip, a chip system, a processor, etc. that supports the terminal device to realize the above-mentioned method, or a chip, a chip system, a processor, etc. that supports the network device to realize the above-mentioned method. The device can be used to realize the method described in the above-mentioned method embodiment, and specifically, the description of the above-mentioned method embodiment can be referred to.

[0208] The communication device 110 may include one or more processors 111. The processor 111 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute a computer program, and process data of the computer program.

[0209] Optionally, the communication device 110 may include one or more memories 112 having computer programs 114 stored therein that execute the computer programs 114 to cause the communication device 110 to perform the methods described in the method embodiments above. Optionally, data may be stored in the memory 112. The communication device 110 and the memory 112 may be provided separately or may be integrated together.

[0210] Optionally, the communication device 110 may further include a transceiver 115 and an antenna 116. The transceiver 115 may be referred to as a transceiver unit, transceiver, or transceiver circuit, etc., and is used to realize a transmission and reception function. The transceiver may include a receiver and a transmitter, and the receiver 115 may be referred to as a receiving device or receiving circuit, etc., and is used to realize a reception function, and the transmitter may be referred to as a transmitting device or transmitting circuit, etc., and is used to realize a transmission function.

[0211] Optionally, the communication device 110 may further include one or more interface circuits 117. The interface circuit 117 is used to receive and transmit code instructions to the processor 111. The processor 111 executes the code instructions, thereby causing the communication device 110 to perform the methods described in the method embodiments above.

[0212] In one implementation, the processor 111 may include a transceiver for implementing the receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated together. The transceiver circuit, interface, or interface circuit may be used to read and write code / data, or the transceiver circuit, interface, or interface circuit may be used to transmit or convey signals.

[0213] In one implementation, the processor 111 may store a computer program 113, which, when executed in the processor 111, enables the communication device 110 to perform the methods described in the above method embodiments. The computer program 113 may be embedded in the processor 111, in which case the processor 111 may be realized by hardware.

[0214] In one implementation, the communication device 110 may include circuitry that can implement the functions of transmitting or receiving or communicating in the method embodiments described above. The processors and transceivers described herein may be integrated into an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, or the like. The processors and transceivers may be fabricated using a variety of IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide semiconductor (nMOS), p-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (Gas), and the like.

[0215] The communication device in the above embodiment description may be a terminal device (such as the terminal device in the above method embodiment), but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited by Figure 16. The communication device may be an independent device or a part of a larger device. For example, the communication device may be as follows: (1) An independent integrated circuit IC or chip, or a chip system or subsystem; (2) A set having one or more integrated circuits, the set of integrated circuits optionally including a storage component for storing data, computer programs; (3) ASICs, such as modems, (4) A module that can be embedded into other devices; (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handhelds, mobile units, vehicle-mounted devices, base stations, cloud devices, artificial intelligence devices, etc. (6)Others.

[0216] When the communication device is a chip or a chip system, one may refer to the schematic configuration diagram of the chip shown in Fig. 12. The chip shown in Fig. 12 includes a processor 121 and an interface 122. Wherein, the number of processors 121 may be one or more, and the number of interfaces 122 may be more than one.

[0217] Optionally, the chip further includes a memory 123, which is used to store necessary computer programs and data.

[0218] The chip is used at run time to implement the functionality of any of the method embodiments described above.

[0219] As can be understood by those skilled in the art, the various illustrative logical blocks and steps enumerated in the embodiments of the present application can be realized by electronic hardware, computer software, or a combination of both. Whether such functions are realized by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can realize the functions using various methods for each specific application, but such realization should not be understood as going beyond the scope of protection of the embodiments of the present application.

[0220] An embodiment of the present application further provides a DMRS port indication system, the system including a communication device serving as a terminal device of the embodiment of FIG. 12 (such as a terminal device of the embodiment of the method described above) and a communication device serving as a network device, or the system including a communication device serving as a terminal device of the embodiment of FIG. 13 (such as a terminal device of the embodiment of the method described above) and a communication device serving as a network device.

[0221] The present application further provides a readable storage medium having instructions stored thereon, which when executed by a computer, implement the functions of any one of the method embodiments described above.

[0222] The present application further provides a computer program product, which when executed by a computer, implements the functions of any one of the above method embodiments.

[0223] In the above embodiments, all or part of the above may be realized by software, hardware, firmware, or any combination thereof. When realized using software, all or part of the above may be realized in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded and executed in a computer, the computer program generates the flow or function according to the description of the embodiments of the present application in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program may be stored in a computer-readable storage medium or may be transmitted from one computer-readable storage medium to another, for example, the computer program may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, radio, microwave, etc.) methods. The computer-readable storage medium may be any available medium accessible to a computer, or a data storage device such as a server, data center, etc., including one or more available media integrations. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)).

[0224] As will be appreciated by those skilled in the art, the various numerals, such as first, second, etc., in this application are divisions made for ease of explanation and do not limit the scope of the embodiments of this application, but also represent a priority order.

[0225] In the present application, "at least one" may be described as "one or more", and more may be two, three, four or more, and is not limited in the present application. In the embodiment of the present application, for one technical feature, the technical features in the technical feature category are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no priority or size order between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0226] The correspondence shown by each table in this application may be set or defined in advance. The possible values ​​of the information in each table are merely examples, may be set to other values, and are not limited in this application. When setting the correspondence between the information and each parameter, it is not necessary to set all the correspondences shown in each table. For example, in the table of this application, the correspondences shown in some rows may not be set. In addition, the above table may be appropriately modified and adjusted, such as divided or combined. The names of the parameters shown in the theme of each table above may also be called other names understandable to the communication device, and the possible values ​​or display methods of the parameters may be other possible values ​​or display methods understandable to the communication device. The above tables may use other data structures, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, and hash tables, when implemented.

[0227] Predefined in this application may be understood as defined, predefined, stored, prestored, predefined, pre-set, cured, or pre-baked.

[0228] As can be understood by those skilled in the art, the combination of the units and algorithm steps of each example described in the embodiments disclosed herein can be realized by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical proposal. Those skilled in the art can use different methods to realize the described functions for each specific application, and such realization should not be regarded as going beyond the scope of this application.

[0229] As can be clearly understood by those skilled in the art, for convenience and simplification of explanation, the specific work processes of the systems, devices and units described above are to be referred to the corresponding processes in the aforementioned method embodiments, and detailed descriptions thereof will be omitted here.

[0230] The above description is merely a specific embodiment of the present application, and the scope of protection of the present application is not limited thereto, and any changes or substitutions that a person skilled in the art can easily think of without departing from the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be in accordance with the claims.

Claims

1. 1. A method for non-codebook based Physical Uplink Shared Channel (PUSCH) information transmission, comprising: The method, performed by a network device, comprises: Deciding to increase the maximum number of physical uplink shared channel (PUSCH) transmission layers supported by a terminal device to 8 layers, and determining the maximum number of uplink data transmission layers L supported by the terminal device. ｍａｘ Extending an existing first probe reference signal resource indication (SRI) mapping table based on: and indicating a first SRS resource combination measured from a non-codebook SRS resource set to a terminal device based on the second SRI mapping table, the first SRS resource combination being used to indicate a precoding matrix to be used for PUSCH transmission, the first SRS resource combination including at least one single-port SRS resource. A method for transmitting information on a non-codebook based physical uplink shared channel (PUSCH), comprising:

2. Extending an existing first probe reference signal resource indication (SRI) mapping table to obtain a second SRI mapping table according to a maximum number of uplink data transmission layers supported by the terminal device, The maximum number of uplink data transmission layers L ｍａｘ and an existing first uplink data transmission layer number, and determining a configuration number set corresponding to a newly added second uplink data transmission layer number and an SRS resource set configured in the terminal device, the configuration number set being a number N of SRS resources configured in the SRS resource set. ＳＲＳ and and expanding the first SRI mapping table according to the second uplink data transmission layer number and the set of numbers to obtain the second SRI mapping table. The method for transmitting PUSCH information based on a non-codebook as claimed in claim 1 .

3. The set of configured numbers includes an existing first candidate number and a newly added second candidate number, and the step of expanding the first SRI mapping table based on the second uplink data transmission layer number and the set of configured numbers includes: For each of the first uplink data transmission layer numbers, extending a first mapping relationship between an SRI index value and an SRS resource combination in the second candidate number, and extending the first SRI mapping table based on the first mapping relationship to obtain the fourth SRI mapping table; For each of the second uplink data transmission layer numbers, extend a second mapping relationship between the SRI index value and the SRS resource combination for each candidate number in the set of configuration numbers, and obtain a fourth SRI mapping table according to the second mapping relationship; determining the third SRI mapping table and the fourth SRI mapping table as the second SRI mapping table; The method for transmitting PUSCH information based on a non-codebook as claimed in claim 2.

4. Indicating the measured first SRS resource combination to the terminal device based on the second SRI mapping table includes: determining a third number of uplink data transmission layers corresponding to the precoding matrix based on the first SRS resource combination; determining an SRI mapping table corresponding to the indicated third uplink data transmission layer number from the third SRI mapping table and the fourth SRI mapping table; determining an SRI index value corresponding to the first SRS resource combination from an SRI mapping table corresponding to the third uplink data transmission layer number, and indicating the SRI index value to the terminal device; The method for transmitting PUSCH information based on a non-codebook as claimed in claim 3.

5. After obtaining the third SRI mapping table and the fourth SRI mapping table, selecting a third mapping relationship between a portion of SRI index values ​​and SRS resource combinations from a third SRI mapping table corresponding to each of the first uplink data transmission layer numbers; selecting a fourth mapping relationship between a portion of SRI index values ​​and SRS resource combinations from a fourth SRI mapping table corresponding to each of the second uplink data transmission layer numbers; generating a restricted SRI mapping table based on the selected third mapping relationship and the fourth mapping relationship, the restricted SRI mapping table being the second SRI mapping table; The method for transmitting PUSCH information based on a non-codebook as claimed in claim 3.

6. Indicating the measured first SRS resource combination to the terminal device based on the second SRI mapping table includes: When it is determined that the first SRS resource combination exists in the restricted SRI mapping table, obtaining an SRI index value corresponding to the first SRS resource combination from the restricted SRI mapping table, and indicating the SRI index value to the terminal device. The method for transmitting PUSCH information based on a non-codebook as claimed in claim 5.

7. Indicating the measured first SRS resource combination to a terminal device based on the second SRI mapping table; if it is determined that the first SRS resource combination does not exist in the restricted SRI mapping table, reselecting an SRS resource combination existing in the restricted SRI mapping table and updating it to the first SRS resource combination; determining an SRI index value corresponding to the updated first SRS resource combination, and indicating the SRI index value to the terminal device. The method for transmitting PUSCH information based on a non-codebook as claimed in claim 5.

8. After determining the restricted SRI mapping table, transmitting the restricted SRI mapping table to the terminal device via a first higher layer signaling, and / or updating all or a part of the restricted SRI mapping table via a second higher layer signaling. The method for transmitting PUSCH information based on a non-codebook according to claim 5 or 6.

9. Indicating the measured first SRS resource combination to the terminal device based on the second SRI mapping table includes: determining a third number of uplink data transmission layers for PUSCH transmission corresponding to the first SRS resource combination when it is determined that the second SRI mapping table includes the third SRI mapping table and the fourth SRI mapping table; grouping SRI mapping tables corresponding to the third uplink data transmission layer number, obtaining candidate SRI mapping sub-tables corresponding to the third uplink data transmission layer number, and determining a first SRI mapping sub-table in which the first SRS resource combination exists from the candidate SRI mapping sub-tables; determining a first SRI index value corresponding to the first SRS resource combination from the first SRI mapping sub-table and sending it to the terminal device; The method for transmitting PUSCH information based on a non-codebook as claimed in claim 3.

10. After obtaining a candidate SRI mapping sub-table corresponding to the third uplink data transmission layer number, transmitting the first SRI mapping sub-table to the terminal device via a third higher layer signaling, and / or updating all or a part of the first SRI mapping sub-table via a fourth higher layer signaling. The method for transmitting PUSCH information based on a non-codebook as claimed in claim 9.

11. the higher layer signaling includes radio control resource RRC signaling and / or media access control-control unit MAC-CE signaling, the MAC-CE signaling being used to update the restricted SRI mapping table or the first SRI mapping sub-table; The method for transmitting PUSCH information based on a non-codebook according to claim 8 or 10.

12. 1. A method for receiving non-codebook based PUSCH information, comprising: The method is performed by a terminal device, the method comprising: Increasing a maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to eight layers and obtaining a second SRI mapping table, the second SRI mapping table being obtained by extending an existing first SRI mapping table; receiving an SRI index value sent by a network device, and determining a first SRS resource combination from the third SRI mapping table based on the SRI index value, the first SRS resource combination being a combination formed by SRS resources selected from an SRS resource set, and including at least one single-port SRS resource; and determining a precoding matrix to be used for actual transmission of a PUSCH based on the first SRS resource combination.

13. A method for receiving non-codebook based PUSCH information, comprising:

13. The step of obtaining the second SRI mapping table includes: The maximum number of uplink data transmission layers L supported by the terminal device ｍａｘ Extending an existing first probe reference signal resource indication (SRI) mapping table based on: The method of claim 12, wherein the non-codebook based PUSCH information is received.

14. Extending an existing first probe reference signal resource indication (SRI) mapping table to obtain a second SRI mapping table according to a maximum number of uplink data transmission layers supported by the terminal device, The maximum number of uplink data transmission layers L ｍａｘ and an existing first uplink data transmission layer number, and determining a configuration number set corresponding to a newly added second uplink data transmission layer number and a probe reference signal (SRS) resource set configured in the terminal device, the configuration number set being a number N of SRS resources configured in the SRS resource set. ＳＲＳ and and expanding the first SRI mapping table according to the second uplink data transmission layer number and the set of numbers to obtain the second SRI mapping table. The method of claim 13, further comprising the step of: receiving non-codebook based PUSCH information;

15. The set of configured numbers includes an existing first candidate number and a newly added second candidate number, and the step of expanding the first SRI mapping table based on the second uplink data transmission layer number and the set of configured numbers includes: For each of the second uplink data transmission layer numbers, extending a first mapping relationship between SRI index values ​​and SRS resource combinations in the second candidate number, and extending the first SRI mapping table based on the first mapping relationship to obtain the third SRI mapping table; For each of the second uplink data transmission layer numbers, extend a second mapping relationship between the SRI index value and the SRS resource combination for each candidate number in the set of configuration numbers, and obtain a fourth SRI mapping table according to the second mapping relationship; determining the third SRI mapping table and the fourth SRI mapping table as the second SRI mapping table; The method of claim 14, wherein the non-codebook based PUSCH information is received.

16. determining a first SRS resource combination from the third SRI mapping table based on the SRI index value, determining a third uplink data transmission layer number corresponding to the precoding matrix; determining an SRI mapping table corresponding to the third uplink data transmission layer number from the third SRI mapping table and the fourth SRI mapping table; determining an SRS resource combination indicated by the SRI index value from an SRI mapping table corresponding to the third uplink data transmission layer number as the first SRS resource combination; The method of claim 12, wherein the non-codebook based PUSCH information is received.

17. The step of obtaining the second SRI mapping table includes: receiving a restricted SRI mapping table sent by the network device through a first higher layer signaling, the restricted SRI mapping table being the second SRI mapping table and including a third mapping relationship selected from a third SRI mapping table and a fourth mapping relationship selected from a fourth SRI mapping table, the mapping relationships being used to indicate a relationship between an SRI index value and an SRS resource combination, the second SRI mapping table being a mapping table for an existing first uplink data transmission layer number, and the fourth SRI mapping table being a mapping table for a newly added second uplink data transmission layer number; The method of claim 12, wherein the non-codebook based PUSCH information is received.

18. after receiving a restricted SRI mapping table sent by the network device via the first higher layer signaling, performing a full or partial update to the restricted SRI mapping table via a second higher layer signaling.

20. The method of claim 17, wherein the non-codebook based PUSCH information is received.

19. determining a first SRS resource combination from the second SRI mapping table based on the SRI index value, determining an SRS resource combination indicated by the SRI index value from the restricted SRI mapping table as the first SRS resource combination; 19. A method for receiving non-codebook based PUSCH information according to claim 17 or 18.

20. The step of obtaining the second SRI mapping table includes: receiving a first SRI mapping sub-table sent by the network device through a third higher layer signaling, the first SRI mapping sub-table being the second SRI mapping table, and being a sub-table in the SRI mapping table corresponding to a third uplink data transmission layer number indicated by the first SRS resource combination; The method of claim 12, wherein the non-codebook based PUSCH information is received.

21. after receiving a first SRI mapping sub-table sent by the network device via the third higher layer signaling, performing a full or partial update to the first SRI mapping sub-table via a fourth higher layer signaling; 21. The method of claim 20, wherein the non-codebook based PUSCH information is received.

22. determining a first SRS resource combination from the second SRI mapping table based on the SRI index value, determining an SRS resource combination indicated by the SRI index value from the first SRI mapping sub-table as the first SRS resource combination; 21. The method of claim 20, wherein the non-codebook based PUSCH information is received.

23. The step of determining a precoding matrix to be used for PUSCH transmission based on the first SRS resource combination includes: selecting an initial precoding matrix based on the first SRS resource combination, and obtaining the precoding matrix; Method for receiving non-codebook based PUSCH information according to any of claims 12 to 22.

24. 1. A network device, comprising: The maximum number of physical uplink shared channel (PUSCH) transmission layers supported by a terminal device is increased to 8 layers, and the maximum number of uplink data transmission layers supported by the terminal device is increased to L ｍａｘ a processing module for extending an existing first probe reference signal resource indication (SRI) mapping table based on and a transceiver module for indicating a first SRS resource combination measured from an SRS resource set to a terminal device based on the second SRI mapping table, the first SRS resource combination being used to indicate a precoding matrix to be used for PUSCH transmission, the first SRS resource combination including at least one single-port SRS resource. A network device comprising:

25. A terminal device, comprising: Including a processing module and a transceiver module, The processing module increases a maximum number of physical uplink shared channel (PUSCH) transmission layers supported by the terminal device to eight layers, and obtains a second SRI mapping table, the second SRI mapping table being obtained by extending an existing first SRI mapping table, and used to determine a precoding matrix used for PUSCH transmission based on a first SRS resource combination, the first SRS resource combination being a combination formed by SRS resources selected from an SRS resource set, and including at least one single-port SRS resource; The receiving module receives an SRI index value transmitted by a network device, and determines the first SRS resource combination from the second SRI mapping table based on the SRI index value. A terminal device comprising:

26. 1. A communication device, comprising: The apparatus includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the apparatus to perform the method according to any one of claims 1 to 12. A communication device comprising:

27. 1. A communication device, comprising: The apparatus includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the apparatus to perform the method according to any one of claims 13 to 23. A communication device comprising:

28. 1. A communication device, comprising: a processor and an interface circuit; the interface circuit receives and transmits code instructions to the processor; The processor executes the code instructions to perform the method according to any one of claims 1 to 12. A communication device comprising:

29. 1. A communication device, comprising: a processor and an interface circuit; the interface circuit receives and transmits code instructions to the processor; The processor executes the code instructions to perform the method according to any one of claims 13 to 23. A communication device comprising:

30. A computer-readable storage medium having instructions stored thereon, comprising: When said instructions are executed, a method according to any one of claims 1 to 12 is achieved. A computer-readable storage medium comprising:

31. A computer-readable storage medium having instructions stored thereon, comprising: When said instructions are executed, a method according to any one of claims 13 to 23 is achieved. A computer-readable storage medium comprising:

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