WO2023184450A1

WO2023184450A1 - Method for receiving/sending information on basis of non-codebook pusch, and apparatuses therefor

Info

Publication number: WO2023184450A1
Application number: PCT/CN2022/084685
Authority: WO
Inventors: 高雪媛
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2023-10-05
Also published as: CN117158087A

Abstract

A method for receiving/sending information on the basis of a non-codebook PUSCH, and apparatuses therefor. The method for receiving information on the basis of a non-codebook PUSCH comprises: sending to a network device a precoded SRS resource in a non-codebook SRS resource set; receiving indication information, which is sent by the network device, wherein the indication information is used for indicating a TRI corresponding to a precoding matrix used in PUSCH transmission, and on the basis of the TRI, determining the precoding matrix used in PUSCH transmission; on the basis of the TRI and by means of a first mapping relationship between candidate data transmission layers and candidate resource combinations, determining a first resource combination corresponding to the TRI; and on the basis of the first resource combination, determining a precoding matrix used in actual PUSCH transmission. In the present application, a mapping relationship between candidate data transmission layers and candidate resource combinations is constructed, and only indication information indicating a TRI needs to be transmitted, such that the number of occupied bits is relatively small, and the overhead of transmission signaling can be reduced. Furthermore, a precoding matrix that satisfies a PUSCH transmission requirement can be indicated on the basis of the TRI.

Description

A method and device for receiving/transmitting information based on non-codebook PUSCH

Technical field

The present application relates to the field of communication technology, and in particular, to a method and apparatus for receiving/transmitting information based on non-codebook PUSCH.

Background technique

In order to be suitable for current services or scenarios, the number of uplink transmission layers of the terminal device can be increased to 8 layers to support a higher uplink transmission rate that is comparable to that of downlink. When the uplink of terminal equipment is enhanced to Layer 8, how to implement non-codebook Physical Uplink Share Channel (PUSCH) transmission becomes a problem that needs to be solved.

Contents of the invention

Embodiments of the present application provide a method and apparatus for receiving/transmitting information based on non-codebook PUSCH, which can increase the number of uplink data transmission layers to 8 layers in the terminal equipment to realize non-codebook-based PUSCH transmission.

In the first aspect, embodiments of the present application provide a method for receiving information based on non-codebook PUSCH, which is suitable for terminal equipment. The method includes:

Configuring and sending the precoded SRS resources in the non-codebook SRS resource set to the network device;

Receive indication information sent by the network device, where the indication information is used to indicate the TRI corresponding to the precoding matrix used for PUSCH transmission;

Based on the TRI, determine the first resource combination corresponding to the TRI through the first mapping relationship between the candidate data transmission layer and the candidate resource combination, where the first resource combination is an SRS resource based on the precoding It is determined from the SRS resource set that the first resource combination is a combination of one or more SRS resources, or that the first resource combination is a port combination of SRS resources;

Based on the first resource combination, a precoding matrix used for the PUSCH transmission is determined.

In the embodiment of the present application, the sending network device configures the precoded SRS resources in the non-codebook SRS resource set, and receives the indication information sent by the network device, where the indication information is used to indicate the data transmission layer used for actual transmission of PUSCH. number of indication information TRI, and determine the target precoding matrix used for PUSCH transmission based on the TRI. Based on the TRI, determine the first resource combination corresponding to the TRI through the first mapping relationship between the candidate data transmission layer and the candidate resource combination. Based on the A resource combination determines the precoding matrix used for actual transmission of PUSCH. In the embodiment of the present application, the mapping relationship between the candidate data transmission layer and the candidate resource combination is constructed, and only the indication information indicating the TRI needs to be transmitted, so that the number of occupied bits is smaller and the overhead of transmission signaling can be reduced. Furthermore, based on TRI, it is possible to indicate the precoding matrix that meets the PUSCH transmission requirements, improving the security, accuracy and reliability of PUSCH transmission. There is no need to expand the existing SRI mapping table. In the scenario where the data transmission layer is added, The precoding matrix that supports 8-layer PUSCH transmission can be indicated through the indication information.

In the second aspect, embodiments of the present application provide another method of transmitting information based on non-codebook PUSCH, which is suitable for network equipment. The method includes:

Based on the precoded SRS resources, select a first resource combination from the SRS resource set, where the first resource combination is a combination of one or more SRS resources, or the first resource combination is a Port combination of SRS resources;

Generate indication information based on the number of SRS resources or ports of SRS resources in the first resource combination, where the indication information is used to indicate the precoding matrix used for PUSCH transmission and the corresponding TRI;

Send the instruction information to the terminal device.

In the embodiment of the present application, the precoded SRS resources corresponding to the non-codebook SRS resource set sent by the terminal device are received, based on the precoded SRS resources, the first resource combination is selected from the SRS resource set, and the first resource combination is selected based on the SRS in the first resource combination. The number of resources or ports is used to generate indication information, where the indication information is used to indicate the precoding matrix and TRI used for PUSCH transmission. In the embodiment of the present application, the mapping relationship between the candidate data transmission layer and the candidate resource combination is constructed, and only the indication information indicating the TRI needs to be transmitted, so that the number of occupied bits is smaller and the overhead of transmission signaling can be reduced. Furthermore, based on TRI, it is possible to indicate the precoding matrix that meets the PUSCH transmission requirements, improving the security, accuracy and reliability of PUSCH transmission. There is no need to expand the existing SRI mapping table. In the scenario where the data transmission layer is added, The precoding matrix that supports 8-layer PUSCH transmission can be indicated through the indication information.

In a third aspect, embodiments of the present application provide a communication device that has some or all of the functions of the terminal device in implementing the method described in the first aspect. For example, the functions of the communication device may have some or all of the functions in this application. The functions in the embodiments may also be used to independently implement any of the embodiments in this application. The functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.

As an example, 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.

In the fourth aspect, embodiments of the present application provide another communication device that has some or all of the functions of the network device in the method example described in the second aspect. For example, the functions of the communication device may have some of the functions in this application. Or the functions in all embodiments may also be used to implement any one embodiment of the present application independently. The functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the communication device includes:

In a fifth aspect, embodiments of the present application provide a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect.

In a sixth aspect, embodiments of the present application provide a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect.

In a seventh aspect, embodiments of the present application provide a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.

In an eighth aspect, embodiments of the present application provide a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.

In a ninth aspect, embodiments of the present application provide a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the first aspect.

In a tenth aspect, embodiments of the present application provide a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.

In an eleventh aspect, embodiments of the present application provide a communication system, which includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and The communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect and the communication device according to the tenth aspect. the above-mentioned communication device.

In a twelfth aspect, embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.

In a thirteenth aspect, embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .

In a fourteenth aspect, the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.

In a fifteenth aspect, the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the second aspect.

In a sixteenth aspect, the present application provides a chip system, which includes at least one processor and an interface for supporting the terminal device to implement the functions involved in the first aspect, for example, determining or processing the data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device. The chip system may be composed of chips, or may include chips and other discrete devices.

In a seventeenth aspect, this application provides a chip system, which includes at least one processor and an interface for supporting network equipment to implement the functions involved in the second aspect, for example, determining or processing the data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device. The chip system may be composed of chips, or may include chips and other discrete devices.

In an eighteenth aspect, the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.

In a nineteenth aspect, this application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect.

Description of drawings

In order to more clearly explain the technical solutions in the embodiments of the present application or the background technology, the drawings required to be used in the embodiments or the background technology of the present application will be described below.

Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application;

Figure 2 is a schematic flowchart of a method for receiving information on non-codebook-based PUSCH provided by an embodiment of the present application;

Figure 3 is a schematic flowchart of a method for receiving information on non-codebook-based PUSCH provided by an embodiment of the present application;

Figure 4 is a schematic flowchart of a method for transmitting information based on non-codebook PUSCH provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a chip provided by an embodiment of the present application.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of the disclosure as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to determining"

For the purpose of simplicity and ease of understanding, the terms used in this article are "greater than" or "less than", "higher than" or "lower than" when characterizing size relationships. But for those skilled in the art, it can be understood that: the term "greater than" also covers the meaning of "greater than or equal to", and "less than" also covers the meaning of "less than or equal to"; the term "higher than" covers the meaning of "higher than or equal to". "The meaning of "less than" also covers the meaning of "less than or equal to".

To facilitate understanding, the terminology involved in this application is first introduced.

The uplink sounding signal SRS (Sounding Reference Signal,) is used to estimate the frequency domain information of the uplink channel and perform frequency selective scheduling. It is also used to estimate the uplink channel and perform downlink beamforming.

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

SRS Resource Indicator (SRI) is used to instruct the UE which SRS resource to use for uplink data transmission.

Data transmission rank indicator (Transmission Rank Indicator, TRI), used to indicate the number of data transmission layers corresponding to the precoding matrix used for actual transmission of PUSCH.

In order to better understand the non-codebook PUSCH method for receiving/transmitting information disclosed in the embodiments of the present application, the following first describes the communication system to which the embodiments of the present application are applicable.

Please refer to Figure 1. Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application. The communication system may include but is not limited to one network device and one terminal device. The number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present application. In actual applications, two or more devices may be included. Network equipment, two or more terminal devices. The communication system shown in Figure 1 includes a network device 101 and a terminal device 102 as an example.

It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems. For example: long term evolution (LTE) system, fifth generation (5th generation, 5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems. It should also be noted that the side link in the embodiment of the present application may also be called a side link or a through link.

The network device 101 in the embodiment of this application is an entity on the network side that is used to transmit or receive signals. For example, the network device 101 can be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other base stations in future mobile communication systems. Or access nodes in wireless fidelity (WiFi) systems, etc. The embodiments of this application do not limit the specific technologies and specific equipment forms used by network equipment. The network equipment provided by the embodiments of this application may be composed of a centralized unit (central unit, CU) and a distributed unit (DU). The CU may also be called a control unit (control unit). CU-DU is used. The structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.

The terminal device 102 in the embodiment of this application is an entity on the user side that is used to receive or transmit signals, such as a mobile phone. Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc. The terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality ( augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc. The embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment.

In side-link communication, there are 4 side-link transmission modes. Side link transmission mode 1 and side link transmission mode 2 are used for terminal device direct (device-to-device, D2D) communication. Side-link transmission mode 3 and side-link transmission mode 4 are used for V2X communications. When side-link transmission mode 3 is adopted, resource allocation is scheduled by the network device 101. Specifically, the network device 101 can send resource allocation information to the terminal device 102, and then the terminal device 102 allocates resources to another terminal device, so that the other terminal device can send information to the network device 101 through the allocated resources. . In V2X communication, a terminal device with better signal or higher reliability can be used as the terminal device 102 . The first terminal device mentioned in the embodiment of this application may refer to the terminal device 102, and the second terminal device may refer to the other terminal device.

It can be understood that the communication system described in the embodiments of the present application is to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. As those of ordinary skill in the art will know, With the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

The non-codebook-based PUSCH information receiving/transmitting method and device provided by this application will be introduced in detail below with reference to the accompanying drawings.

Please refer to Figure 2. Figure 2 is a schematic flowchart of a method for receiving information on a non-codebook-based PUSCH provided by an embodiment of the present application. The method of receiving information based on non-codebook PUSCH is executed by the terminal equipment. As shown in Figure 2, the method may include but is not limited to the following steps:

Step S21: Send the precoded SRS resources in the non-codebook SRS resource set to the network device.

In the embodiment of the present application, the maximum PUSCH transmission that the terminal equipment can support can be increased to layer 8, which can then be used to support a higher uplink transmission rate that is comparable to that of downlink.

In this embodiment of the present application, the sounding reference signal (Sounding Reference Signal, SRS) resource set includes at least one SRS resource. The SRS resource may be a single-port SRS resource or a multi-port SRS resource. The maximum number of ports configured for multi-port SRS resources is 8. For single-port SRS resources, a maximum of 8 SRS resources can be configured in the SRS resource set.

Optionally, the resource configuration type of the SRS resource collection is:

Type 1: The SRS resource set includes multiple first candidate SRS resources, where all the first candidate SRS resources are single-port SRS resources.

Second type: The SRS resource set includes at least one second candidate SRS resource, and different second candidate SRS resources have different numbers of ports. For example, the second candidate SRS resource 1, the number of ports is 1, the second candidate SRS resource 2, the number of ports is 2, the second candidate SRS resource 3, the number of ports is 3, the second candidate SRS resource 4, the number of ports is 4, By analogy, the second candidate SRS resource is 8, and the number of ports is 8.

Third type: the SRS resource set includes a third candidate SRS resource, and the third candidate SRS resource is configured with multiple candidate ports. The value of the number of ports can include 1, 2, 3, 4, 5, 6, 7, and 8.

Optionally, the network device configures an SRS resource set with a non-codebook function to the terminal device through high-layer signaling. For example, the network device can configure the terminal device through Radio Resource Control (RRC) signaling or Media access control-Control Element (MAC-CE) signaling or other high-level signaling. SRS resource collection. Optionally, the configuration or reconfiguration of the SRS resource set is implemented through RRC signaling, and the updated configuration of all or part of the SRS resources of a certain SRS resource set is implemented through MAC-CE signaling.

Optionally, the time domain characteristics of the SRS resource set are periodic, semi-persistent or aperiodic. That is to say, the SRS resource set can be a periodic SRS resource set, a semi-persistent SRS resource set, or a non-periodic SRS resource set. Periodic SRS resource collection.

In the embodiment of this application, after obtaining the SRS resource set configured by the network device, the terminal device can precode the SRS resources configured in the SRS resource set based on the initial precoding matrix, and send the precoded SRS resources to the network device. . The precoded SRS resources can be used to obtain channel state information (CSI), and then obtain channel estimation information. The channel estimation information can reflect scheduling information such as channel conditions, interference conditions of pre-scheduled users, and/or channel noise.

It should be noted that the non-codebook uplink transmission scheme is also a spatial multiplexing technology. The difference from the codebook-based uplink transmission is that its precoding is based on certain criteria, rather than based on a fixed codebook. Determine the precoding among the candidate values. If the reciprocity of the uplink and downlink channels exists, the terminal can calculate the downlink channel information based on the channel reciprocity, thereby obtaining the uplink precoding matrix. If the channel reciprocity is good enough, the terminal can obtain more accurate precoding through the downlink channel. Compared with the codebook-based transmission scheme, it can save the cost of precoding indication and obtain better performance at the same time.

Optionally, the terminal device receives associated downlink Channel State Information-Reference Signal (CSI-RS) resources configured by the network device, and the terminal device can determine the initial precoding matrix based on the downlink CSI-RS resources. The target precoding matrix used for actual transmission of PUSCH in the application is selected from the initial precoding matrix.

Step S22: Receive indication information sent by the network device, where the indication information is used to indicate the TRI corresponding to the precoding matrix used for PUSCH transmission.

Optionally, the network device can receive the precoded SRS resources for channel estimation and obtain channel estimation information. Since the channel estimation information can reflect channel conditions, pre-scheduled multi-user interference and/or channel noise, it can further be based on the channel estimation. The information determines the TRI of the terminal device. That is to say, the network device can comprehensively consider the estimated uplink channel information, interference conditions of pre-scheduled users and other scheduling factors, and determine the first resource combination used for actual transmission of PUSCH from the SRS resource set configured for the terminal device, based on the first The resource combination can determine the target precoding matrix, and determine the number of data transmission layers corresponding to the target precoding matrix based on the number of resources in the first resource combination, that is, the network device selects from the SRS resource set based on the precoded SRS resources. The first resource is combined, and the precoding matrix used for PUSCH transmission and the TRI corresponding to the precoding matrix are determined.

Optionally, the indication information (Sounding Reference Signal Resource Indicator, SRI) of the SRS resource is used as the indication information, and the TRI is indicated through the SRI. Optionally, the indication information can also be directly TRI.

Step S23: Based on the TRI, determine the first resource combination corresponding to the TRI through the first mapping relationship between the candidate data transmission layer and the candidate resource combination, where the first resource combination is precoding-based SRS resources from the SRS resource set. It is determined that the first resource combination includes an SRS resource combination of one or more SRS resources or that the first resource combination is a port combination of SRS resources.

In the embodiment of the present application, the first mapping relationship between the candidate data transmission layer and the candidate resource combination is defined or indicated in advance. For example, a mapping table may be preset, and the mapping table includes the relationship between the number of candidate data transmission layers and the candidate resource combination. The first mapping relationship. For another example, the combination of the candidate data transmission layer and the candidate resource may be: TRI=1, which corresponds to SRS resource #0, and TRI=2, which corresponds to SRS resources #0 and #1.

It should be noted that the first resource combination is a combination of one or more SRS resources selected from the SRS resource set based on the precoded SRS, or a port combination of the same SRS resource.

The resource configuration type one corresponding to the SRS resource set is that the SRS resource set includes the first candidate SRS resource, and the first resource combination includes one or more first candidate SRS resources selected by the network device. In this case, the first mapping relationship includes a correspondence relationship between candidate TRIs and first candidate SRS resources, and different candidate TRIs correspond to different candidate resource combinations composed of one or more first candidate SRS resources, where , the values of the candidate TRIs increase sequentially, and the number and number of the first candidate SRS resources included in the candidate resource combination also increase sequentially.

For example, when the TRI indicated by the indication information (SRI) is 1, it corresponds to the number #0 of the first candidate SRS resource. When the TRI indicated by the indication information (SRI) is 2, it corresponds to the number # of the first candidate SRS resource. 0 and #1, when the TRI indicated by the indication information (SRI) is 3, correspond to the numbers #0, #1 and #2 of the first candidate SRS resources, and so on.

The second resource configuration type corresponding to the SRS resource set is that the SRS resource set includes the second candidate SRS resource. The network device selects a second candidate SRS resource from the SRS resource set based on the precoded SRS. The first resource combination is the selected third SRS resource. Port combinations of all ports configured for the second candidate SRS resource. Optionally, the first mapping relationship includes the corresponding relationship between the candidate TRI and the second candidate SRS resource, which can be determined through a table or a predefined manner, where the value of the candidate TRI corresponds to the number of the second candidate SRS resource one-to-one, When the values of candidate TRIs increase sequentially, the number of the second candidate SRS resource and the number of ports included also increase sequentially.

For example, when the TRI indicated by the indication information (SRI) is 1, it corresponds to the number #0 of the second candidate SRS resource. When the TRI indicated by the indication information (SRI) is 2, it corresponds to the number # of the second candidate SRS resource. 1. When the indication information (SRI) indicates 3, it corresponds to the number #2 of the first candidate SRS resource, and so on.

Optionally, the corresponding relationship between the candidate SRI and the second candidate SRS resource can also be configured, which can be determined through a table or a predefined manner, where the value of the candidate SRI corresponds to the number of the second candidate SRS resource. When the candidate As the value of SRI increases in sequence, the number of the second candidate SRS resource and the number of ports included also increase in sequence.

For example, when the SRI indicated by the indication information (SRI) is 0, it corresponds to the number #0 of the second candidate SRS resource. When the SRI indicated by the indication information (SRI) is 1, it corresponds to the number # of the second candidate SRS resource. 1. When the indication information (SRI) indicates 2, it corresponds to the number #2 of the first candidate SRS resource, and so on.

Resource configuration type three corresponding to the SRS resource set, that is, the SRS resource set includes the third candidate SRS resource, and the network device selects one or more candidate ports from the candidate ports of the third candidate SRS resource based on the precoded SRS, then the first The resource combination is a port combination formed by one or more selected candidate ports. In this case, the first mapping relationship includes the correspondence between candidate TRIs and candidate ports. Different candidate TRIs correspond to different candidate port combinations composed of one or more candidate ports, where the value order of the candidate TRIs is increases, the number of candidate ports and port numbers included in the candidate port combination also increase sequentially.

For example, when the TRI indicated by the indication information (SRI) is 1, it corresponds to the port number #0 in the third candidate SRS resource. When the TRI indicated by the indication information (SRI) is 2, it corresponds to the port number #0 in the third candidate SRS resource. Numbers #0 and #1, when the TRI indicated by the indication information (SRI) is 3, correspond to the port numbers #0, #1 and #2 in the third candidate SRS resource, and so on.

Step S24: Based on the first resource combination, determine the precoding matrix used for PUSCH transmission.

Optionally, after acquiring the first resource combination, the terminal device can determine the precoding matrix used for PUSCH transmission using the precoding vector or precoding matrix corresponding to the first resource combination.

In one case, it is determined that the resource configuration of the SRS resource set is of the first type, where the first resource combination includes one or more first SRS resources, and the first SRS resource is the first SRS resource selected by the network device in the SRS resource set. Candidate SRS resources. The terminal equipment determines the precoding vector used corresponding to the first SRS resource, and determines the precoding matrix used for PUSCH transmission based on the precoding vector used by the first SRS resource. The precoding vector is a vector of the initial precoding matrix.

Optionally, the precoding vectors used by the first candidate SRS resources in the combination are combined according to the number sequence of the first candidate SRS resources to obtain a precoding matrix used for PUSCH transmission.

As an example, the initial precoding matrix is H=[V ₀ , V ₁ , V ₂ , V ₃ , V ₄ , V ₅ , V ₆ , V ₇ ], and the first candidate SRS resources are numbered #0 to #7. Each first candidate SRS resource port corresponds to a precoding column vector. For example, the first candidate SRS resource #0 corresponds to V ₀ , the first candidate SRS resource #1 corresponds to V ₁ , and the first candidate SRS resource #2 corresponds to V ₂ , the first candidate SRS resource #3 corresponds to V ₃ , and by analogy, the first candidate SRS resource #7 corresponds to V ₇ . When the first resource combination determined by the terminal equipment is the first candidate SRS resource #0 and the first candidate SRS resource #1, the corresponding V ₁ and V ₂ are combined to obtain a precoding matrix used for PUSCH transmission.

In another case, it is determined that the resource configuration of the SRS resource set is of the first type, wherein the first resource combination includes a second SRS resource, and the second SRS resource is a second candidate SRS selected by the network device in the SRS resource set. resource. Further, the terminal device determines the precoding matrix used by the port combination corresponding to the second SRS resource, and determines the precoding matrix used corresponding to the second SRS resource as the precoding matrix used for PUSCH transmission.

It should be noted that the terminal device uses a different precoding matrix to precode each second candidate SRS resource in the SRS resource set to obtain the precoded second candidate SRS resource. The precoding matrix corresponding to the second candidate SRS resource may be determined based on the port combination corresponding to the second candidate SRS resource. The precoding matrix corresponding to the second candidate SRS resource is a combination of one or more precoding vectors of the initial precoding matrix.

As an example, the initial precoding matrix is H=[V ₀ , V ₁ , V ₂ , V ₃ , V ₄ , V ₅ , V ₆ , V ₇ ], and the second candidate SRS resources are numbered #0 to #7. The second candidate SRS resource #0 is configured with one port #0, the second candidate SRS resource #1 is configured with two ports #0 and #1, and the second candidate SRS resource #2 corresponds to three ports #0 and #1. 1 and #2; the second candidate SRS resource #3 is configured with four ports #0, #1 and #2 and port #3; and so on, the second candidate SRS resource #7 corresponds to four ports #0 to port #7. Precoding matrices corresponding to different second candidate SRS resources. For example, the second candidate SRS resource #1 is configured with two ports #0 and #1, and the corresponding precoding matrix is [V ₀ , V ₁ ]; for example, The second candidate SRS resource #3 is configured with two ports #0, #1 and #2 and port #3, and the corresponding precoding matrix is [V ₀ , V ₁ , V ₂ , V ₃ ].

When the terminal device determines that the first resource combination is the second SRS resource #1 and the included port combination is ports #0 and #1, the second candidate SRS resource #1 and the corresponding precoding matrix are [V ₀ , V ₁ ], determine the precoding matrix used for PUSCH transmission.

In another case, it is determined that the resource configuration of the SRS resource set is of the first type, wherein the first resource combination includes one or more first ports, and the first port is a port selected by the network device among multiple candidate ports. Further, a precoding vector of the first port is obtained, and based on the precoding vector corresponding to the first port, a precoding matrix used for PUSCH transmission is determined. Optionally, the precoding vectors used by the first port in the combination are combined according to the number sequence of the first port to obtain a precoding matrix used for PUSCH transmission.

It should be noted that each port in the third candidate SRS resource has a corresponding precoding vector, where the precoding vector is a vector of the initial precoding matrix.

The example shows that the initial precoding matrix is H=[V ₀ , V ₁ , V ₂ , V ₃ , V ₄ , V ₅ , V ₆ , V ₇ ], and the candidate ports of the third candidate SRS resource each correspond to a precoding column. Vector, for example, candidate port #0 corresponds to V ₀ , candidate port #1 corresponds to V ₁ , candidate port #2 corresponds to V ₂ , candidate port #3 corresponds to V ₃ , and so on, candidate port #7 corresponds to V ₇ . When the first resource combination determined by the terminal equipment is candidate port #0 and candidate port #1, the corresponding V ₀ and V ₁ are combined to obtain the precoding matrix used for PUSCH transmission.

When it is necessary to explain, the SRS resources selected in the first resource combination need to apply the maximum number of transmission layers RANK configured by the higher layer as the codebook subset limit, that is to say, the number of data transmission layers corresponding to the target precoding matrix determined by the terminal equipment, Less than or equal to the maximum number of data transmission layers supported by the terminal device.

In the embodiment of the present application, the sending network device configures the precoded SRS resources in the non-codebook SRS resource set, and receives the indication information sent by the network device, where the indication information is used to indicate the data transmission layer used for actual transmission of PUSCH. number of indication information TRI, and determine the target precoding matrix used for PUSCH transmission based on the TRI. Based on the TRI, determine the first resource combination corresponding to the TRI through the first mapping relationship between the candidate data transmission layer and the candidate resource combination. Based on the A resource combination determines the precoding matrix used for actual transmission of PUSCH. In the embodiment of the present application, the mapping relationship between the candidate data transmission layer and the candidate resource combination is constructed, and only the indication information indicating the TRI needs to be transmitted, so that the number of occupied bits is smaller and the overhead of transmission signaling can be reduced. Furthermore, based on TRI, the target precoding matrix that meets the PUSCH transmission requirements can be indicated, improving the security, accuracy and reliability of PUSCH transmission without the need to expand the existing SRI mapping table. In the scenario where the data transmission layer is added , the precoding matrix that supports 8-layer PUSCH transmission can be indicated through the indication information.

Please refer to Figure 3. Figure 3 is a schematic flowchart of a method for receiving information on a non-codebook-based PUSCH provided by an embodiment of the present application. The method of receiving information based on non-codebook PUSCH is executed by the terminal equipment. As shown in Figure 3, the method may include but is not limited to the following steps:

Step S31: Send the precoded SRS resources in the SRS resource set whose network device configuration function is non-codebook.

Regarding the implementation of step S31, any implementation method in the embodiments in this application can be adopted. For specific introduction, please refer to the records of relevant contents, and will not be described again here.

Step S32: Receive indication information sent by the network device, where the indication information is used to indicate indication information TRI of the number of data transmission layers used for actual PUSCH transmission.

Optionally, indicate the TRI to the terminal device through the indication information of the SRS resource (Sounding Reference Signal ResourceIndicator, SRI). Optionally, send the TRI to the terminal device through the indication field of the SRI, that is to say, reuse the existing SRI. The indication field is used to indicate the TRI to the terminal device. The indication field can carry an index value that can index the TRI.

Step S33: If the SRI is used to indicate TRI, determine the TRI based on the second mapping relationship between the SRI and the candidate SRI and the candidate TRI.

In this embodiment of the present application, there is a second mapping relationship between the candidate SRI and the candidate TRI, and the TRI can be determined based on the second mapping relationship, as shown in Table 1. Referring to Table 1, for example, the second mapping relationship may be: SRI value 1, corresponding TRI=1, SRI value 5, corresponding TRI=6.

Table 1

It can be understood that each element in Table 1 exists independently, and these elements are exemplarily listed in the same table, but it does not mean that all elements in the table must exist at the same time as shown in the table. The value of each element does not depend on the value of any other element in Table 1. Therefore, those skilled in the art can understand that the value of each element in Table 1 is an independent embodiment.

Optionally, the second mapping relationship may be determined in advance and stored in the terminal device according to the protocol agreement, or may be indicated to the terminal device through high-level signaling.

Step S34: Based on the first mapping relationship, determine the first resource combination corresponding to the TRI.

The first resource combination is selected from an SRS resource set based on precoded SRS, and the first resource combination is a combination of one or more SRS resources, or the first resource combination is a port combination of SRS resources.

Optionally, the first mapping relationship includes a correspondence relationship between candidate TRIs and first candidate SRS resources. Different candidate TRIs correspond to different candidate resource combinations composed of one or more first candidate SRS resources, where the candidate As the values of TRI increase sequentially, the number and number of the first candidate SRS resources included in the candidate resource combination also increase sequentially.

Optionally, the first mapping relationship includes a correspondence relationship between the candidate TRI and the second candidate SRS resource. The value of the candidate TRI corresponds to the number of the second candidate SRS resource one-to-one, wherein the values of the candidate TRI are in increasing order, Then the number of the second candidate SRS resource and the number of included ports also increase sequentially.

Optionally, the first mapping relationship includes a correspondence relationship between candidate TRIs and candidate ports. Different candidate TRIs correspond to different candidate port combinations composed of one or more candidate ports, where the values of the candidate TRIs increase in order, Then the number of candidate ports and port numbers included in the candidate port combination also increase sequentially.

It should be noted that the first resource combination is a combination of one or more SRS resources selected from the SRS resource set based on the precoded SRS, or a port combination of the same SRS resource. For example, the SRS resource set includes a first candidate SRS resource, and the first resource combination includes one or more first candidate SRS resources selected by the network device. For another example, the SRS resource set includes a second candidate SRS resource, the network device selects a second candidate SRS resource from the SRS resource set based on the precoded SRS, and the first resource combination is the port configured by the selected second candidate SRS resource. Port combination. For another example, the SRS resource set includes a third candidate SRS resource, and the network device selects one or more candidate ports from the candidate ports of the third candidate SRS resource based on the precoded SRS, then the first resource combination is the selected one or A port combination formed by multiple candidate ports.

For illustrative description, please refer to the relevant examples in the above embodiments and will not be described again here.

Step S35: Based on the first resource combination, determine the precoding matrix used for PUSCH transmission.

In one case, the SRS resource set is determined to be resource configuration type one, in which the first resource combination includes one or more first SRS resources, and the first SRS resource is the first candidate SRS selected by the network device in the SRS resource set. resource. The terminal equipment determines the precoding vector used corresponding to the first SRS resource, and determines the precoding matrix used for PUSCH transmission based on the precoding vector used by the first SRS resource. The precoding vector is a vector of the initial precoding matrix.

In another case, the SRS resource set is determined to be resource configuration type 2, where the first resource combination includes a second SRS resource, and the second SRS resource is a second candidate SRS resource selected by the network device in the SRS resource set. Further, the terminal device determines the precoding matrix used by the port combination corresponding to the second SRS resource, and determines the precoding matrix used corresponding to the second SRS resource as the precoding matrix used for PUSCH transmission.

In another case, it is determined that the resource configuration of the SRS resource set is of the third type, wherein the first resource combination includes one or more first ports, and the first port is a port selected by the network device among multiple candidate ports. Further, a precoding vector of the first port is obtained, and based on the precoding vector corresponding to the first port, a precoding matrix used for PUSCH transmission is determined. Optionally, the precoding vectors used by the first port in the combination are combined according to the number sequence of the first port to obtain a precoding matrix used for PUSCH transmission.

In the embodiment of the present application, the mapping relationship between the candidate data transmission layer and the candidate resource combination is constructed, and only the indication information indicating the TRI needs to be transmitted, so that the number of occupied bits is smaller and the overhead of transmission signaling can be reduced. Furthermore, based on TRI, it is possible to indicate the precoding matrix that meets the PUSCH transmission requirements, improving the security, accuracy and reliability of PUSCH transmission. There is no need to expand the existing SRI mapping table. In the scenario where the data transmission layer is added, The precoding matrix that supports 8-layer PUSCH transmission can be indicated through the indication information.

Please refer to Figure 4. Figure 4 is a schematic flowchart of a non-codebook-based PUSCH information sending method provided by an embodiment of the present application. The method of transmitting information based on non-codebook PUSCH is executed by network equipment. As shown in Figure 4, the method may include but is not limited to the following steps:

Step S41: Receive the precoded SRS resources in the non-codebook SRS resource set sent by the terminal device.

The SRS resource set includes at least one SRS resource. The SRS resource may be a single-port SRS resource or a multi-port SRS resource. The maximum number of ports configured for multi-port SRS resources is 8. For single-port SRS resources, a maximum of 8 SRS resources can be configured in the SRS resource set.

Optionally, the resource configuration type of the SRS resource collection:

Type 1: The SRS resource set includes multiple first candidate SRS resources, where the first candidate SRS resources are all single-port SRS resources, and each port corresponds to a data transmission layer. or,

First type: The SRS resource set includes at least one second candidate SRS resource, and different second candidate SRS resources have different numbers of ports. For example, the second candidate SRS resource 1, the number of ports is 1, the second candidate SRS resource 2, the number of ports is 2, the second candidate SRS resource 3, the number of ports is 3, the second candidate SRS resource 4, the number of ports is 4, By analogy, the second candidate SRS resource is 8, and the number of ports is 8. Among them, each port corresponds to a data transmission layer. or,

Third type: the SRS resource set includes a third candidate SRS resource, and the third candidate SRS resource has multiple candidate ports. The value of the number of ports can include 1, 2, 3, 4, 5, 6, 7, and 8, where each port corresponds to a data transmission layer.

Optionally, the network device configures an SRS resource set with a non-codebook function to the terminal device through high-layer signaling. For example, the network device may configure the SRS resource set to the terminal device through RRC signaling or MAC-CE signaling.

Optionally, the SRS resource set may be a periodic SRS resource set, a semi-persistent SRS resource set, or an aperiodic SRS resource set.

In the embodiment of this application, after obtaining the SRS resource set configured by the network device, the terminal device can precode the SRS resources configured in the SRS resource set based on the initial precoding matrix, and send the precoded SRS resources to the network device. . The precoded SRS resources can be used to obtain CSI, and then channel estimation information can be obtained. The channel estimation information can reflect scheduling factors such as channel conditions, pre-scheduled multi-user interference, and/or channel noise.

In the embodiment of the present application, the determination process of the initial precoding matrix can be found in the description of the relevant content in the above embodiment, and will not be described again here.

Step S42: Based on the precoded SRS resources, determine a first resource combination from the SRS resource set.

The first resource combination is an SRS resource combination including one or more SRS resources, or a port combination of the same SRS resource.

Optionally, the network device can receive precoded SRS resources for channel estimation and obtain channel estimation information. Since the channel estimation information can reflect channel conditions, multi-user interference and/or channel noise, the network device can further determine based on the channel estimation information. Output the TRI of the terminal device. That is to say, the network device can comprehensively consider scheduling factors such as estimated uplink channel information and interference conditions of pre-scheduled users, and determine the first resource combination used for PUSCH transmission from the SRS resource set configured for the terminal device. Further, the network device can determine the target precoding matrix based on the first resource combination, and determine the number of data transmission layers corresponding to the target precoding matrix based on the number of resources in the first resource combination, that is, the network device is based on the precoding SRS resources, The first resource combination is selected from the SRS resource set, and the precoding matrix used for PUSCH transmission and the indication information TRI of the number of data transmission layers used for actual PUSCH transmission are determined.

Step S43: Generate indication information based on the number of SRS resources or ports of SRS resources in the first resource combination, where the indication information is used to instruct PUSCH transmission to use the precoding matrix and the corresponding TRI.

In one case, it is determined that the SRS resource set is resource configuration type one, then the first resource combination includes one or more first SRS resources, where the first SRS resource is the first SRS resource selected by the network device in the SRS resource set. A candidate SRS resource. Further, the network device may determine the number of first SRS resources, and determine the indication information based on the number. In this case, a first candidate SRS resource corresponds to a data transmission layer. The network device determines the number of the first SRS resource, and can determine the data transmission layer used for actual transmission of PUSCH, and can determine the data transmission layer used to indicate the Instructions for the data transport layer.

In another case, it is determined that the SRS resource set is resource configuration type 2, then the first resource combination includes a second SRS resource, where the second SRS resource is a second candidate SRS resource selected by the network device in the SRS resource set. . The network device generates indication information based on the number of ports configured for the second SRS resource. In this case, the network device can determine the data transmission layer used for actual transmission of PUSCH by determining the number of second SRS resources, and can determine the indication information used to indicate the data transmission layer. For example, the second SRS resource is the second candidate SRS resource #2 in the SRS resource set, where the second candidate SRS resource #2 includes ports #0, #1 and #2. Based on the number of ports of the second SRS resource, it can be determined The data transmission layer used for actual transmission of PUSCH is 3.

In another case, it is determined that the SRS resource set is resource configuration type three, then the first resource combination includes one or more first ports, and the first port is a port selected by the network device among multiple candidate ports. Further, the network device generates indication information based on the number of the first ports. For example, the third candidate SRS resource includes candidate ports #0 to #7. The network device can determine candidate port #0 and candidate port #1 as the first port. Then based on the number of first ports, the actual transmission usage of PUSCH can be determined. The data transfer layer is 2.

Optionally, a 3-bit number can be used for encoding, determined as indication information, and the indication information is sent to the terminal device. For example, the data transmission layer 2 used for actual transmission of PUSCH is determined and encoded as 101 as the indication information. It is determined that the data transmission layer used for actual transmission of PUSCH is 5, and the encoding is 101 as the indication information.

Step S44: Send instruction information to the terminal device.

Optionally, the SRI is used as the indication information, and the TRI is indicated through the SRI. Optionally, the indication information can also be directly TRI. Optionally, the TRI is sent to the terminal device through the indication field of the SRI, that is to say, the indication field of the existing SRI is reused, and the TRI is indicated to the terminal device through the indication field. The indication field can carry an indexable TRI. index value. Optionally, the network device can send the indication information to the terminal device through DCI signaling.

In the embodiment of the present application, the precoded SRS resources corresponding to the non-codebook SRS resource set sent by the terminal device are received, based on the precoded SRS resources, the first resource combination is selected from the SRS resource set, and the first resource combination is selected based on the SRS in the first resource combination. The number of resources or ports is used to generate indication information, where the indication information is used to determine the precoding matrix and corresponding TRI used for PUSCH transmission. In the embodiment of the present application, the mapping relationship between the candidate data transmission layer and the candidate resource combination is constructed, and only the indication information indicating the TRI needs to be transmitted, so that the number of occupied bits is smaller and the overhead of transmission signaling can be reduced. Furthermore, based on TRI, it is possible to indicate the precoding matrix that meets the PUSCH transmission requirements, improving the security, accuracy and reliability of PUSCH transmission. There is no need to expand the existing SRI mapping table. In the scenario where the data transmission layer is added, The precoding matrix that supports 8-layer PUSCH transmission can be indicated through the indication information.

In the above embodiments provided by the present application, the methods provided by the embodiments of the present application are introduced from the perspectives of network equipment and terminal equipment respectively. In order to implement each function in the method provided by the above embodiments of the present application, network equipment and terminal equipment may include hardware structures and software modules to implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. A certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.

Please refer to FIG. 5 , which is a schematic structural diagram of a communication device 50 provided by an embodiment of the present application. The communication device 70 shown in FIG. 7 may include a transceiver module 501 and a processing module 502. The transceiving module 501 may include a sending module and/or a receiving module. The sending module is used to implement the sending function, and the receiving module is used to implement the receiving function. The transceiving module 501 may implement the sending function and/or the receiving function.

The communication device 50 may be a terminal device (such as the network device in the foregoing method embodiment), a device in the network device, or a device that can be used in conjunction with the network device. Alternatively, the communication device 50 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.

The communication device 50 is a terminal device:

The transceiver module 502 is configured to send precoded SRS resources in the non-codebook SRS resource set to the network device, and receive indication information sent by the network device, where the indication information is used to determine the precoding matrix used for PUSCH transmission. The corresponding TRI;

The processing module 501 is configured to determine the first resource combination corresponding to the TRI based on the first mapping relationship between the candidate data transmission layer and the candidate resource combination based on the TRI, and determine the first resource combination based on the first resource combination. The precoding matrix used for PUSCH transmission; wherein the first resource combination is determined from the SRS resource set based on the precoded SRS resources, and the first resource combination is a combination of one or more SRS resources, Or the first resource combination is a port combination of SRS resources, and the precoding matrix used for the PUSCH transmission is determined based on the first resource combination.

Optionally, the transceiving module 502 is also configured to receive a sounding reference signal resource indication SRI, where the SRI is used to indicate the TRI; or, receive the TRI.

Optionally, the processing module 501 is also used to:

When the SRI indication is used for the TRI, the TRI is determined based on the second mapping relationship between the SRI and the candidate SRI and the candidate TRI;

Based on the first mapping relationship, a first resource combination corresponding to the TRI is determined.

Optionally, the resource configuration type of the SRS resource set is:

First type: the SRS resource set includes multiple first candidate SRS resources, and the first candidate SRS resources are all single-port SRS resources; or

Second type: the SRS resource set includes at least one second candidate SRS resource, and different second candidate SRS resources have different numbers of ports; or

Third type: the SRS resource set includes a third candidate SRS resource, and the third candidate SRS resource is configured with multiple candidate ports.

Optionally, the processing module 501 is further configured to: determine that the resource configuration of the SRS resource set is the first type, that the first resource combination includes one or more first SRS resources, and that the first SRS The resource is the first candidate SRS resource measured by the network device in the SRS resource set;

Determine the precoding vector corresponding to the first SRS resource;

Based on the precoding vector corresponding to the first SRS resource, the target precoding matrix used for the PUSCH transmission is determined.

Optionally, the first mapping relationship includes a correspondence relationship between candidate TRIs and first candidate SRS resources, and different candidate TRIs correspond to different candidate resource combinations composed of one or more first candidate SRS resources. , where the values of the candidate TRIs increase sequentially, then the number and number of the first candidate SRS resources included in the candidate resource combination also increase sequentially.

Optionally, the processing module 501 is also used to:

Determine that the resource configuration of the SRS resource set is the first type, the first resource combination includes a second SRS resource, and the second SRS resource is the SRS resource measured by the network device. Second candidate SRS resource;

Determine the precoding matrix used by the port combination corresponding to the second SRS resource;

The precoding matrix used corresponding to the second SRS resource is determined as the target precoding matrix used for the PUSCH transmission.

Optionally, the first mapping relationship includes a correspondence relationship between the candidate TRI and the second candidate SRS resource, and the value of the candidate TRI corresponds to the number of the second candidate SRS resource, wherein the candidate TRI The values of are sequentially increasing, then the number of the second candidate SRS resource and the number of ports included are also sequentially increasing.

Optionally, the processing module 501 is also used to:

Determine that the resource configuration of the SRS resource set is the first type, the first resource combination includes one or more first ports, and the first port is one of the plurality of candidate ports measured by the network device. the port obtained;

Obtain the precoding vector of the first port, and determine the precoding matrix used for the PUSCH transmission based on the precoding vector corresponding to the first port.

Optionally, the first mapping relationship includes a correspondence relationship between candidate TRIs and candidate ports, and different candidate TRIs correspond to different candidate port combinations composed of one or more candidate ports, wherein the candidate TRIs The values of are sequentially increasing, then the number of candidate ports and port numbers included in the candidate port combination are also sequentially increasing.

Optionally, the SRS resource collection is one of the following types:

Periodic SRS resource collection; or

Semi-persistent SRS resource collection; or

Aperiodic SRS resource collection.

Optionally, the number of data transmission layers corresponding to the target precoding matrix is less than or equal to the maximum number of data transmission layers supported by the terminal device.

The communication device 50 is a network device:

The transceiver module 502 is configured to receive a set of precoded SRS resources from non-codebook SRS resources sent by the terminal equipment, and send indication information to the terminal equipment, where the indication information is used to indicate the PUSCH used for actual transmission. The target precoding matrix and the corresponding TRI;

The processing module 501 is configured to determine a first resource combination from the SRS resource set based on the precoded SRS resources, and generate the indication information based on the number of SRS resources or ports in the first resource combination; The first resource combination is a source combination of one or more SRS resources, or the first resource combination is a port combination of SRS resources.

Optionally, the transceiver module 502 is also used to:

Determine the indication information as SRI and send it to the terminal device, where the SRI is used to indicate TRI; or,

The indication information is determined as the TRI and sent to the terminal device.

Optionally, the resource configuration type of the SRS resource collection is:

Optionally, the processing module 501 is also used to:

It is determined that the resource configuration of the SRS resource set is the first type, then the first resource combination includes one or more first SRS resources, and the first SRS resource is the network resource in the SRS resource set. The first candidate SRS resource measured by the device;

Obtain the quantity of the first SRS resource, and determine the indication information based on the quantity.

Optionally, the processing module 501 is also used to:

It is determined that the resource configuration of the SRS resource set is the second type, then the first resource combination includes a second SRS resource, and the second SRS resource is measured by the network device in the SRS resource set. The second candidate SRS resource;

The indication information is generated based on the number of ports configured with the second SRS resource.

Optionally, the processing module 501 is also used to:

It is determined that the resource configuration of the SRS resource set is the third type, then the first resource combination includes one or more first ports, and the first port is one of the plurality of candidate ports provided by the network device. The measured port;

The indication information is generated based on the number of the first ports.

Optionally, the SRS resource collection is one of the following types:

Periodic SRS resource collection; or

Semi-persistent SRS resource collection; or

Aperiodic SRS resource collection.

Optionally, the number of data transmission layers corresponding to the precoding matrix used for PUSCH transmission is less than or equal to the maximum number of data transmission layers supported by the terminal device.

Please refer to FIG. 6 , which is a schematic structural diagram of another communication device 60 provided by an embodiment of the present application. The communication device 60 may be a network device, a terminal device (such as the terminal device in the foregoing method embodiment), a chip, a chip system, a processor, etc. that supports the network device to implement the above method, or a terminal device that supports A chip, chip system, or processor that implements the above method. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.

Communication device 60 may include one or more processors 601. The processor 601 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data. The central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.

Optionally, the communication device 60 may also include one or more memories 602, on which a computer program 604 may be stored. The processor 601 executes the computer program 604, so that the communication device 60 performs the steps described in the above method embodiments. method. Optionally, the memory 602 may also store data. The communication device 60 and the memory 602 can be provided separately or integrated together.

Optionally, the communication device 60 may also include a transceiver 605 and an antenna 606. The transceiver 605 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 605 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function; the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.

Optionally, the communication device 60 may also include one or more interface circuits 607. The interface circuit 607 is used to receive code instructions and transmit them to the processor 601 . The processor 601 executes the code instructions to cause the communication device 60 to perform the method described in the above method embodiment.

In one implementation, the processor 601 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.

In one implementation, the processor 601 may store a computer program 603, and the computer program 603 runs on the processor 601, causing the communication device 60 to perform the method described in the above method embodiment. The computer program 603 may be solidified in the processor 601, in which case the processor 601 may be implemented by hardware.

In one implementation, the communication device 60 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments. The processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiments may be a network device or a terminal device (such as the first terminal device in the foregoing 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 be Not limited by Figure 6. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) A collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs;

(3)ASIC, such as modem;

(4) Modules that can be embedded in other devices;

(5) Receivers, terminal equipment, intelligent terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.;

(6) Others, etc.

For the case where the communication device may be a chip or a chip system, please refer to the schematic structural diagram of the chip shown in FIG. 7 . The chip shown in Figure 7 includes a processor 701 and an interface 702. The number of processors 701 may be one or more, and the number of interfaces 702 may be multiple.

Optionally, the chip also includes a memory 703, which is used to store necessary computer programs and data.

The chip can be used to implement the functions of any of the above method embodiments.

Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the protection scope of the embodiments of the present application.

Embodiments of the present application also provide a communication system, which includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) and a communication device as a network device in the embodiment of FIG. 5 , or the system includes The communication device as a terminal device (such as the terminal device in the foregoing method embodiment) and the communication device as a network device in the aforementioned embodiment of FIG. 6 .

This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.

This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated 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 or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated therein. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.

Persons of ordinary skill in the art can understand that the first, second, and other numerical numbers involved in this application are only for convenience of description and are not used to limit the scope of the embodiments of this application and also indicate the order.

At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application. In the embodiment of this application, for a technical feature, the technical feature is distinguished by "first", "second", "third", "A", "B", "C" and "D", etc. The technical features described in "first", "second", "third", "A", "B", "C" and "D" are in no particular order or order.

The corresponding relationships shown in each table in this application can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which are not limited by this application. When configuring the correspondence between information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, in the table in this application, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.

Predefinition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for receiving information on a non-codebook physical uplink shared channel PUSCH, characterized in that it is executed by a terminal device, and the method includes:

Send the precoded SRS resources in the non-codebook sounding reference signal SRS resource set to the network device;

Receive indication information sent by the network device, where the indication information is used to indicate the transmission rank indication TRI corresponding to the precoding matrix used for PUSCH transmission;

Based on the TRI, determine the first resource combination corresponding to the TRI through the first mapping relationship between the candidate data transmission layer and the candidate resource combination, where the first resource combination is an SRS resource based on the precoding It is determined from the SRS resource set that the first resource combination is a combination of one or more SRS resources, or that the first resource combination is a port combination of SRS resources;

Based on the first resource combination, a precoding matrix used for the PUSCH transmission is determined.
The method according to claim 1, characterized in that the receiving instruction information sent by the network device includes:

Receive a sounding reference signal resource indication SRI, where the SRI is used to indicate the TRI; or, receive the TRI.
The method according to claim 2, characterized in that, based on the TRI, determining the first resource combination through the first mapping relationship between the candidate data transmission layer and the candidate resource combination includes:

When the SRI indication is used for the TRI, the TRI is determined based on the SRI and the second mapping relationship between the candidate SRI and the candidate TRI;

Based on the first mapping relationship, a first resource combination corresponding to the TRI is determined.
The method according to any one of claims 1-3, characterized in that the resource configuration type of the SRS resource set is:

First type: the SRS resource set includes multiple first candidate SRS resources, and the first candidate SRS resources are all single-port SRS resources; or

Second type: the SRS resource set includes at least one second candidate SRS resource, and different second candidate SRS resources have different numbers of ports; or

Third type: the SRS resource set includes a third candidate SRS resource, and the third candidate SRS resource has multiple candidate ports.
The method according to claim 4, characterized in that, based on the first resource combination, determining the precoding matrix used for the PUSCH transmission includes:

Determine that the resource configuration of the SRS resource set is the first type, the first resource combination includes one or more first SRS resources, and the first SRS resource is the network resource in the SRS resource set. The first candidate SRS resource measured by the device;

Determine the precoding vector corresponding to the first SRS resource;

The precoding matrix is determined based on the precoding vector corresponding to the first SRS resource.
The method of claim 5, wherein the first mapping relationship includes a correspondence relationship between candidate TRIs and first candidate SRS resources, and different candidate TRIs correspond to different ones of one or more of the A candidate resource combination composed of first candidate SRS resources, wherein the values of the candidate TRIs increase sequentially, and the number and number of the first candidate SRS resources included in the candidate resource combination also increase sequentially.
The method according to claim 4, characterized in that, based on the first resource combination, determining the precoding matrix used for the PUSCH transmission includes:

Determine that the resource configuration of the SRS resource set is the second type, the first resource combination includes a second SRS resource, and the second SRS resource is the SRS resource measured by the network device. Second candidate SRS resource;

Determine the precoding matrix used by the port combination corresponding to the second SRS resource;

The precoding matrix used correspondingly to the second SRS resource is determined as the precoding matrix.
The method according to claim 7, characterized in that the first mapping relationship includes a correspondence relationship between candidate TRI and second candidate SRS resources, and the value of the candidate TRI and the value of the second candidate SRS resource are The numbers correspond to one-to-one, and if the values of the candidate TRIs increase sequentially, then the numbers of the second candidate SRS resources and the number of ports included also increase sequentially.
The method according to claim 4, characterized in that, based on the first resource combination, determining the precoding matrix used for the PUSCH transmission includes:

Determine that the resource configuration of the SRS resource set is the third type, the first resource combination includes one or more first ports, and the first port is selected by the network device from the plurality of candidate ports. port;

Obtain the precoding vector of the first port, and determine the target precoding matrix based on the precoding vector corresponding to the first port.
The method according to claim 8, characterized in that the first mapping relationship includes a correspondence relationship between candidate TRIs and candidate ports, and different candidate TRIs corresponding to different ones are synthesized by one or more candidate ports. Candidate port combinations, wherein the values of the candidate TRIs increase sequentially, then the number of candidate ports and port numbers included in the candidate port combinations also increase sequentially.
The method according to any one of claims 1-10, characterized in that the SRS resource set is one of the following:

Periodic SRS resource collection; or

Semi-persistent SRS resource collection; or

Aperiodic SRS resource collection.
The method according to any one of claims 1 to 10, characterized in that the number of data transmission layers corresponding to the precoding matrix is less than or equal to the maximum number of data transmission layers supported by the terminal device.
A method for transmitting information based on non-codebook PUSCH, characterized in that it is executed by a network device, and the method includes:

Receive precoded SRS resources in the non-codebook SRS resource set sent by the terminal device;

Based on the precoded SRS resources, a first resource combination is determined from the SRS resource set, wherein the first resource combination is an SRS resource combination including one or more SRS resources, or the first resource combination Port combination combined into one SRS resource;

Generate indication information based on the number of SRS resources or ports of SRS resources in the first resource combination, where the indication information is used to indicate the precoding matrix used for PUSCH transmission and the corresponding TRI;

Send the instruction information to the terminal device.
The method according to claim 13, wherein sending the indication information to the terminal device includes:

Determine the indication information as a sounding reference signal resource indication SRI, and send it to the terminal device, where the SRI is used to indicate the TRI; or,

The indication information is determined as the TRI and sent to the terminal device.
The method according to claim 13 or 14, characterized in that the resource configuration type of the SRS resource set is:

First type: the SRS resource set includes multiple first candidate SRS resources, and the first candidate SRS resources are all single-port SRS resources; or

Second type: the SRS resource set includes at least one second candidate SRS resource, and different second candidate SRS resources have different numbers of ports; or

Third type: the SRS resource set includes a third candidate SRS resource, and the third candidate SRS resource is configured with multiple candidate ports.
The method of claim 15, wherein generating indication information based on the number of resources in the first resource combination includes:

It is determined that the resource configuration of the SRS resource set is the first type, then the first resource combination includes one or more first SRS resources, and the first SRS resource is the network resource in the SRS resource set. The first candidate SRS resource measured by the device;

Obtain the quantity of the first SRS resource, and determine the indication information based on the quantity.
The method of claim 15, wherein generating indication information based on the number of resources in the first resource combination includes:

It is determined that the resource configuration of the SRS resource set is the second type, then the first resource combination includes a second SRS resource, and the second SRS resource is measured by the network device in the SRS resource set. The second candidate SRS resource;

The indication information is generated based on the number of ports of the second SRS resource.
The method of claim 15, wherein generating indication information based on the number of resources in the first resource combination includes:

It is determined that the resource configuration of the SRS resource set is the third type, then the first resource combination includes one or more first ports, and the first port is one of the plurality of candidate ports provided by the network device. The measured port;

The indication information is generated based on the number of the first ports.
The method according to any one of claims 10-15, characterized in that the SRS resource set is one of the following types:

Periodic SRS resource collection; or

Semi-persistent SRS resource collection; or

Aperiodic SRS resource collection.
The method according to any one of claims 10 to 15, characterized in that the number of data transmission layers corresponding to the precoding matrix is less than or equal to the maximum number of data transmission layers supported by the terminal device.
A terminal device, characterized by including:

A transceiver module, configured to send precoded SRS resources in a non-codebook SRS resource set to a network device, and receive indication information sent by the network device, where the indication information is used to indicate the corresponding precoding matrix used for PUSCH transmission. TRI;

A processing module configured to determine the first resource combination corresponding to the TRI based on the first mapping relationship between the candidate data transmission layer and the candidate resource combination based on the TRI, and determine the first resource combination based on the first resource combination. A precoding matrix used for PUSCH transmission; wherein the first resource combination is determined from the SRS resource set based on the precoded SRS resources, and the first resource combination includes SRS resources of one or more SRS resources. combination, or the first resource combination is a port combination of SRS resources;
A network device, characterized by including:

A transceiver module, configured to receive precoded SRS resources in a non-codebook SRS resource set sent by the terminal equipment, and send indication information to the terminal equipment, where the indication information is used to indicate the precoding used for PUSCH transmission. Matrix and corresponding TRI;

A processing module configured to determine a first resource combination from the SRS resource set based on the precoded SRS resources, and generate the indication based on the number of SRS resources or ports of SRS resources in the first resource combination. Information; wherein the first combination is an SRS resource combination including one or more SRS resources, or the first resource combination is a port combination of SRS resources.
A communication device, characterized in that the device 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, so that the device executes the claims The method described in any one of 1 to 12.
A communication device, characterized in that the device 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, so that the device executes the claims The method described in any one of 13 to 20.
A communication device, characterized by including: a processor and an interface circuit;

The interface circuit is used to receive code instructions and transmit them to the processor;

The processor is configured to run the code instructions to perform the method according to any one of claims 1 to 12.
A communication device, characterized by including: a processor and an interface circuit;

The interface circuit is used to receive code instructions and transmit them to the processor;

The processor is configured to run the code instructions to perform the method according to any one of claims 13 to 20.
A computer-readable storage medium for storing instructions, which when executed, enables the method according to any one of claims 1 to 12 to be implemented.
A computer-readable storage medium configured to store instructions that, when executed, enable the method according to any one of claims 13 to 20 to be implemented.