CN115190614A

CN115190614A - Information indication method and device

Info

Publication number: CN115190614A
Application number: CN202110369029.7A
Authority: CN
Inventors: 刘显达; 杨育波; 纪刘榴
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2022-10-14
Also published as: WO2022213933A1

Abstract

The DCI received by the terminal equipment comprises a first SRI field and a second SRI field, wherein the value of the first SRI field comprises a first class field value and a second class field value, the value of the second SRI field comprises a third class field value, the first class field value and the third class field value can be used for indicating the identification of the SRS included in the resource set, and the second class field value is used for indicating the identification of the resource set. The terminal device may determine the number of resource sets according to the DCI, and further transmit data on the PUSCH using the transmission beam corresponding to one or more resource sets. In the method, the terminal equipment transmits data according to the resource set suitable for generating the transmitting wave beam, so that network resources are saved, and the communication efficiency is improved.

Description

Information indication method and device

Technical Field

The embodiment of the application relates to the field of communication, in particular to an information indication method and device.

Background

When a terminal device sends data to a network device on a Physical Uplink Shared Channel (PUSCH), the terminal device may send data to multiple different network devices by using different precoding matrices on Orthogonal Frequency Division Multiplexing (OFDM) symbols in different time domains. The uplink performance of the terminal equipment can be improved by cooperatively receiving the data sent by the terminal equipment on the PUSCH through a plurality of different network equipment.

The network equipment configures a plurality of SRS resource sets in advance, and the terminal equipment generates a transmission beam for transmitting the PUSCH based on the SRS resource sets. In the prior art, dynamic selection of an appropriate SRS resource set cannot be supported. Since the channel quality is time-varying, a certain SRS resource set may not be suitable for generating a transmission beam for transmitting a PUSCH, and if a transmission beam is still generated based on a plurality of SRS resource sets, waste of network resources may be caused, and it is an urgent problem to effectively indicate the number of SRS resource sets for generating a transmission beam to adapt to the current transmission channel condition.

Disclosure of Invention

The application provides an information indication method and an information indication device, wherein terminal equipment can determine the number of resource sets according to DCI, and further transmit data by using one or more transmission beams corresponding to the resource sets on a PUSCH. In the method, the terminal equipment transmits data according to the resource set suitable for generating the transmitting wave beam, so that network resources are saved, and the communication efficiency is improved.

A terminal device receives downlink control information DCI sent by a network device, where the DCI includes a first Sounding Reference Signal indicator (SRI) field and a second SRI field, a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value are used to indicate an identifier of a Sounding Reference Signal (SRS) included in a resource set, and the second field value is used to indicate an identifier of the resource set; and the terminal equipment transmits data by using one or more sending beams corresponding to the resource sets on a Physical Uplink Shared Channel (PUSCH) according to the DCI.

In this application, DCI received by a terminal device includes a first SRI field and a second SRI field, where a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value may be used to indicate an SRS identifier included in a resource set, and the second field value is used to indicate an SRS identifier included in the resource set. The terminal device may determine the number of resource sets according to the DCI, and further transmit data on the PUSCH using the transmission beam corresponding to one or more resource sets. In the method, the terminal equipment transmits data according to the resource set suitable for generating the transmitting wave beam, so that network resources are saved, and the communication efficiency is improved.

In a possible implementation manner of the first aspect, the resource set includes a first resource set and a second resource set, and if a value of the first SRI field is the first class field value, the first class field value is used to indicate an identifier of an SRS in the first resource set, and the third class field value is used to indicate an identifier of an SRS in the second resource set.

In this possible implementation manner, if the value of the first SRI field is the first field value, that is, the first SRI field indicates one SRS resource in the SRS resource set 0, the value of the second SRI field is the third field value, and the third field value indicates one SRS resource in the SRS resource set 1. The terminal device can confirm that the terminal device needs to select resources in the SRS resource set 0 and the SRS resource set 1 to transmit uplink data on the PUSCH according to the first SRI field and the second SRI field in the DCI, that is, the uplink data transmitted on the PUSCH by the terminal device is received by the network device 1 and the network device 2 together, so that uplink diversity gain is realized, and the communication quality of the terminal device is further improved.

In a possible implementation manner of the first aspect, the resource set includes a first resource set and a second resource set, the second type field value includes a first value and a second value, if the value of the first SRI field is the first value, the third type field value is used to indicate an SRS identifier in the first resource set, and if the value of the first SRI field is the second value, the third type field value indicates an SRS identifier in the second resource set.

In this possible implementation manner, when the value of the first SRI field is the first value, it represents that the first SRI field indicates SRS resource set 0. At this time, the third type field value in the second SRI field indicates SRS resource 0 and SRS resource 1 in SRS resource set 0, respectively. And the terminal equipment selects the SRS resource set 0 corresponding to the network equipment 1 according to the first SRI field, and selects the SRS resource 0 or the SRS resource 1 in the SRS resource set 0 to transmit uplink data to the network equipment 1 according to the second SRI field. When the value of the first SRI field is the second value, it represents that the first SRI field indicates SRS resource set 1. At this time, the third type field value in the second SRI field indicates SRS resource 0 and SRS resource 1 in SRS resource set 1, respectively. And the terminal equipment selects the SRS resource set 1 corresponding to the network equipment 2 according to the first SRI field, and selects the SRS resource 0 or the SRS resource 1 in the SRS resource set 1 according to the second SRI field to transmit uplink data to the network equipment 2. In this possible implementation manner, the network device can flexibly instruct the terminal device to transmit the uplink data through the appropriate network device, thereby preventing the network device which is not suitable for transmitting data from receiving the uplink data sent by the terminal device, and improving the utilization rate of network resources.

A terminal device receives downlink control information DCI sent by a network device, where the DCI includes a first Transmission Precoding Matrix Indicator (TPMI) field and a second TPMI field, the first TPMI field includes a first field value and a second field value, the second TPMI field includes a third field value, the first field value and the third field value are used to indicate a TPMI corresponding to a resource in a resource set, and the second field value is used to indicate the terminal device to transmit data using a transmission beam corresponding to a resource set on a Physical Uplink Shared Channel (PUSCH); and the terminal equipment transmits data by using the transmission beam corresponding to one or more resource sets on the PUSCH according to the DCI.

In this application, DCI received by a terminal device includes a first TPMI field and a second TPMI field, where the DCI includes the first TPMI field, the first TPMI field includes a first field value and a second field value, the second TPMI field includes a third field value, the first field value and the third field value are used to indicate a TPMI corresponding to a resource in a resource set, and the second field value is used to indicate the terminal device to transmit data using a transmission beam corresponding to a resource set on a physical uplink shared channel PUSCH. Because the resource sets correspond to the network devices one to one, the terminal device can determine the number of the resource sets according to the DCI, and further transmit data to one or more network devices by using the transmission beams corresponding to one or more resource sets on the PUSCH.

In a possible implementation manner of the second aspect, the resource set includes a first resource set and a second resource set, if a value of the first TPMI field is the first class field value, the first class field value is used to indicate a TPMI corresponding to a resource in the first resource set, and the third class field value is used to indicate a TPMI corresponding to a resource in the second resource set.

In this possible implementation manner, if the value of the first TPMI field is the first type field value, that is, the first TPMI field indicates a precoding matrix corresponding to one SRS resource in the SRS resource set 0, the value of the second TPMI field is the third type field value, and the third type field value indicates a precoding matrix corresponding to one SRS resource in the SRS resource set 1. The terminal device can confirm that the terminal device needs to select resources in the SRS resource set 0 and the SRS resource set 1 to transmit uplink data on the PUSCH according to the first TPMI field and the second TPMI field in the DCI, that is, the uplink data transmitted on the PUSCH by the terminal device is received by the network device 1 and the network device 2 together, so that uplink diversity gain is realized, and the communication quality of the terminal device is further improved.

In a possible implementation manner of the second aspect, the resource set includes a first resource set and a second resource set, if the value of the first TPMI field is the second type field value, an SRI field or a TPC field is used to determine an identifier of the one resource set, and the third type field value indicates a TPMI corresponding to a resource in the one resource set.

In this possible implementation manner, if the value of the first TPMI field is the second-type field value and the value of the first TPMI field indicates reserved, the first TPMI field indicates that the terminal device only uses a transmission beam corresponding to one SRS resource set to transmit uplink data to one network device. Specifically selecting which SRS resource set may interpret the SRI field or the Transmit Power Command (TPC) field. In this possible implementation manner, the network device can flexibly instruct the terminal device to transmit the uplink data through the appropriate network device, thereby preventing the network device which is not suitable for transmitting data from receiving the uplink data sent by the terminal device, and improving the utilization rate of network resources.

In a possible implementation manner of the second aspect, the third class field value is further used for indicating a transmission layer number of the PUSCH.

In this possible implementation manner, when the terminal device is indicated by the first TPMI field to transmit uplink data to the network device through one or more resource sets, in order to save network resources, the first TPMI field may indicate only the TPMI without indicating a number of transmission layers (rank), the third type field value in the second TPMI field may indicate both the number of transmission layers and the TPMI (rank + TPMI), and the rank of the first TPMI field follows the indication of the second TPMI. For example, if the second TPMI field indicates a layer 1 (layer), the TPMI indicated by the first TPMI field is also a layer 1. In this application, the selection of the first TPMI field to indicate that the terminal device is to transmit uplink data to the network device over one or more sets of resources is because the second TPMI field may include an indication of rank + TPMI, while the first TPMI field includes an indication of TPMI only.

A network device determines downlink control information DCI, where the DCI includes a first sounding reference signal indicator (SRI) field and a second SRI field, a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value are used to indicate an identifier of an SRS included in a resource set, and the second field value is used to indicate the identifier of the resource set. And the network equipment sends the DCI to the terminal equipment.

In this application, DCI sent by a network device includes a first SRI field and a second SRI field, where a value of the first SRI field includes a first class field value and a second class field value, a value of the second SRI field includes a third class field value, the first class field value and the third class field value may be used to indicate an identifier of an SRS included in a resource set, and the second class field value is used to indicate an identifier of the resource set. The terminal device may determine the number of resource sets according to the DCI, and further transmit data on the PUSCH using the transmission beam corresponding to one or more resource sets. In the method, the terminal equipment transmits data according to the resource set suitable for generating the transmitting wave beam, so that network resources are saved, and the communication efficiency is improved.

In a possible implementation manner of the third aspect, the resource sets include a first resource set and a second resource set, and if the value of the first SRI field is the first type field value, the first type field value is used to indicate an SRS identifier in the first resource set, and the third type field value is used to indicate an SRS identifier in the second resource set.

In a possible implementation manner of the third aspect, the resource set includes a first resource set and a second resource set, the second type field value includes a first value and a second value, if the value of the first SRI field is the first value, the third type field value is used to indicate an identifier of an SRS in the first resource set, and if the value of the first SRI field is the second value, the third type field value indicates an identifier of an SRS in the second resource set.

In this possible implementation manner, when the value of the first SRI field is the first value, it represents that the first SRI field indicates SRS resource set 0. At this time, the third class field value in the second SRI field indicates SRS resource 0 and SRS resource 1 in SRS resource set 0, respectively. And the terminal equipment selects the SRS resource set 0 corresponding to the network equipment 1 according to the first SRI field, and selects the SRS resource 0 or the SRS resource 1 in the SRS resource set 0 to transmit uplink data to the network equipment 1 according to the second SRI field. When the value of the first SRI field is the second value, it represents that the first SRI field indicates SRS resource set 1. At this time, the third class field value in the second SRI field indicates SRS resource 0 and SRS resource 1 in SRS resource set 1, respectively. The terminal equipment selects the SRS resource set 1 corresponding to the network equipment 2 according to the first SRI field, and selects the SRS resource 0 or the SRS resource 1 in the SRS resource set 1 according to the second SRI field to transmit uplink data to the network equipment 2. In this possible implementation manner, the network device can flexibly instruct the terminal device to transmit the uplink data through the appropriate network device, so that the network device which is not suitable for transmitting data is prevented from receiving the uplink data sent by the terminal device, and the utilization rate of network resources is improved.

A network device determines downlink control information DCI, where the DCI includes a first transmission precoding matrix indicator TPMI field, where the first TPMI field includes a first class field value and a second class field value, the second TPMI field includes a third class field value, the first class field value and the third class field value are used to indicate a TPMI corresponding to a resource in a resource set, and the second class field value is used to indicate the terminal device to transmit data using a transmission beam corresponding to a resource set on a physical uplink shared channel PUSCH; and the network equipment sends the DCI to the terminal equipment.

In the application, DCI sent by a network device includes a first TPMI field and a second TPMI field, the DCI includes the first TPMI field, the first TPMI field includes a first field value and a second field value, the second TPMI field includes a third field value, the first field value and the third field value are used for indicating a TPMI corresponding to a resource in a resource set, and the second field value is used for indicating a terminal device to transmit data using a transmission beam corresponding to a resource set on a physical uplink shared channel PUSCH. Because the resource sets correspond to the network devices one to one, the terminal device can determine the number of the resource sets according to the DCI, and further transmit data to one or more network devices by using the transmission beams corresponding to one or more resource sets on the PUSCH.

In a possible implementation manner of the fourth aspect, the resource set includes a first resource set and a second resource set, where if the value of the first TPMI field is the first class field value, the first class field value is used to indicate a TPMI corresponding to a resource in the first resource set, and the third class field value is used to indicate a TPMI corresponding to a resource in the second resource set.

In this possible implementation manner, if the value of the first TPMI field is the first type field value, that is, the first TPMI field indicates a precoding matrix corresponding to one SRS resource in the SRS resource set 0, the value of the second TPMI field is the third type field value, and the third type field value indicates a precoding matrix corresponding to one SRS resource in the SRS resource set 1. The terminal device can confirm that the terminal device needs to select resources in the SRS resource set 0 and the SRS resource set 1 to transmit uplink data on the PUSCH according to the first TPMI field and the second TPMI field in the DCI, that is, the uplink data transmitted on the PUSCH by the terminal device is received by the network device 1 and the network device 2 together, so as to implement uplink diversity gain and further improve the communication quality of the terminal device.

In a possible implementation manner of the fourth aspect, the resource set includes a first resource set and a second resource set, if the value of the first TPMI field is the second type field value, the sounding reference signal indicates an SRI field or a TPC field for determining an identifier of the one resource set, and the third type field value indicates a TPMI corresponding to a resource in the one resource set.

In this possible implementation manner, when the value of the first SRI field is the first value, it represents that the first SRI field indicates SRS resource set 0. At this time, the third class field value in the second SRI field indicates SRS resource 0 and SRS resource 1 in SRS resource set 0, respectively. The terminal device selects the SRS resource set 0 corresponding to the network device 1 according to the first SRI field, and selects the SRS resource 0 or the SRS resource 1 in the SRS resource set 0 according to the second SRI field to transmit uplink data to the network device 1. When the value of the first SRI field is the second value, it represents that the first SRI field indicates SRS resource set 1. At this time, the third class field value in the second SRI field indicates SRS resource 0 and SRS resource 1 in SRS resource set 1, respectively. The terminal equipment selects the SRS resource set 1 corresponding to the network equipment 2 according to the first SRI field, and selects the SRS resource 0 or the SRS resource 1 in the SRS resource set 1 according to the second SRI field to transmit uplink data to the network equipment 2. In this possible implementation manner, the network device can flexibly instruct the terminal device to transmit the uplink data through the appropriate network device, thereby preventing the network device which is not suitable for transmitting data from receiving the uplink data sent by the terminal device, and improving the utilization rate of network resources.

In a possible implementation manner of the fourth aspect, the third class field value is further used to indicate a number of transmission layers of the PUSCH.

In this possible implementation manner, when the terminal device is indicated by the first TPMI field to transmit uplink data to the network device through one or more resource sets, in order to save network resources, the first TPMI field may indicate only the TPMI without indicating a number of transmission layers (rank), the third type field value in the second TPMI field may indicate both the number of transmission layers and the TPMI (rank + TPMI), and the rank of the first TPMI field follows the indication of the second TPMI. For example, if the second TPMI field indicates 1layer, the TPMI indicated by the first TPMI field is also 1layer. In this application, the selection of the first TPMI field to indicate that the terminal device is to transmit uplink data to the network device over one or more sets of resources is because the second TPMI field may include an indication of rank + TPMI, while the first TPMI field includes an indication of TPMI only.

A fifth aspect of the present application provides a communication apparatus comprising at least one processor configured to execute the instructions, which when executed by the processor, cause the terminal device to perform the method of the first aspect or any possible implementation manner of the first aspect, or cause the terminal device to perform the method of the second aspect or any possible implementation manner of the second aspect.

A sixth aspect of the present application provides a communication apparatus comprising at least one processor configured to execute the instructions, which when executed by the processor, cause the network device to perform the method of the third aspect or any possible implementation manner of the third aspect, or cause the network device to perform the method of the fourth aspect or any possible implementation manner of the fourth aspect.

A seventh aspect of the present application provides a computer-readable storage medium, which stores a program that causes the terminal device to execute the method in the first aspect or any possible implementation manner of the first aspect, or causes the terminal device to execute the method in the second aspect or any possible implementation manner of the second aspect, or causes the network device to execute the method in the third aspect or any possible implementation manner of the third aspect, or causes the network device to execute the method in any possible implementation manner of the fourth aspect or the fourth aspect.

An eighth aspect of the present application provides a computer program product storing one or more computer executable instructions, which, when executed by a processor, performs the method of the first aspect or any one of the possible implementations of the first aspect, or the method of the second aspect or any one of the possible implementations of the second aspect, or the method of the third aspect or any one of the possible implementations of the third aspect, or the method of the fourth aspect or any one of the possible implementations of the fourth aspect.

A ninth aspect of the present application provides a chip, which includes a processor and a communication interface, the processor is coupled to the communication interface, and the processor is configured to read an instruction to perform the method of the first aspect or any one of the possible implementations of the first aspect, or to perform the method of the second aspect or any one of the possible implementations of the second aspect, or to perform the method of the third aspect or any one of the possible implementations of the third aspect, or to perform the method of any one of the possible implementations of the fourth aspect.

A tenth aspect of the present invention provides a communication apparatus, comprising at least one logic circuit and an input/output interface, the input/output interface being configured to communicate with another device, the logic circuit being configured to: the method according to any one of the preceding claims, wherein the first aspect is implemented as a computer program product, and the second aspect is implemented as a computer program product.

An information indication system according to an eleventh aspect of the present application includes the terminal device described in the first aspect or any one of the possible implementation manners of the first aspect, and includes the network device described in the third aspect or any one of the possible implementation manners of the third aspect.

An information indication system according to a twelfth aspect of the present application includes the terminal device described in any one of the second aspect or the second possible implementation manner, and includes the network device described in any one of the fourth aspect or the fourth possible implementation manner.

According to the technical scheme, the embodiment of the application has the following advantages:

Drawings

FIG. 1 is a schematic diagram of an application of an information indicating system provided in the present application;

fig. 2 is a schematic diagram of an application of an information indication method provided in the present application;

fig. 3 is a schematic diagram of an application of an information indication method provided in the present application;

fig. 4 is a schematic structural diagram of a terminal device provided in the present application;

fig. 5 is a schematic structural diagram of another terminal device provided in the present application;

fig. 6 is a schematic structural diagram of a network device provided in the present application;

fig. 7 is a schematic structural diagram of a network device provided in the present application;

fig. 8 is a schematic structural diagram of another terminal device provided in the present application;

fig. 9 is a schematic structural diagram of another network device provided in the present application.

Detailed Description

The examples provided in this application are described below with reference to the accompanying drawings, and it is to be understood that the examples described are only examples of some, and not all, of the present application. It can be known to those skilled in the art that with the development of technology and the emergence of new scenes, the technical solutions provided in the present application are also applicable to similar technical problems.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the examples described herein are capable of being carried out in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. Also, in the description of the present application, "a plurality" means two or more than two unless otherwise specified. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

When a terminal device sends data to a network device on a Physical Uplink Shared Channel (PUSCH), the terminal device may send data to a plurality of different network devices by using different precoding matrices on Orthogonal Frequency Division Multiplexing (OFDM) symbols of different time domains. The uplink performance of the terminal equipment can be improved by cooperatively receiving the data sent by the terminal equipment on the PUSCH through a plurality of different network equipment.

In order to solve the problems in the foregoing solutions, an information indication method and related devices are provided in the present application, where a DCI received by a terminal device includes a first SRI field and a second SRI field, a value of the first SRI field includes a first class field value and a second class field value, a value of the second SRI field includes a third class field value, the first class field value and the third class field value may be used to indicate an identity of an SRS included in a resource set, and the second class field value is used to indicate an identity of the resource set. The terminal device may determine the number of resource sets according to the DCI, and further transmit data on the PUSCH using the transmission beam corresponding to one or more resource sets. In the method, the terminal equipment transmits data according to the resource set suitable for generating the transmitting wave beam, so that network resources are saved, and the communication efficiency is improved.

The application also provides an information indication system which can be applied to a homogeneous network or a heterogeneous network. The information indicates that the system can be applied to a Frequency Division Duplexing (FDD) system or a time division duplexing (tdd) system. The information indication system can be applied to low frequency scenes (sub 6G) and also high frequency scenes (above 6G). The information indicates that the system can be applied to 4G, 5G or future mobile communication systems. The details are not limited herein.

Fig. 1 is a schematic application diagram of an information indicating system provided in the present application.

Referring to fig. 1, the information indication system provided by the present application includes a terminal device 101, a network device 102, and/or a network device 103.

In the information indication system provided by the present application, the terminal device 101 may transmit uplink data to the network device 102 and/or the network device 103, when the terminal device transmits the uplink data, there are two uplink transmission modes, which are uplink transmission based on a codebook and uplink transmission based on a non-codebook, and the two transmission modes are introduced below respectively.

(1) Codebook based uplink transmission.

In the present application, a non-codebook based uplink transmission process is described by taking an example in which terminal device 101 sends uplink data to network device 102. First, it is assumed that network device 102 allocates resource set a to terminal device 101, where resource set a corresponds to network device 102 one to one, and terminal device 101 sends a message to network device 102 by using an SRS in resource set a. The network device 102 performs channel measurement according to the SRS sent by the terminal device, and selects the optimal SRS to generate SRI and TPMI. The SRI indicates an index value of the optimal SRS resource, and the TPMI indicates a precoding matrix used by a transmitting antenna corresponding to the SRS transmission on the optimal SRS resource for transmitting uplink data, that is, a transmitting beam for uplink data transmission is jointly determined based on the SRI and the TPMI indication information. The terminal device 101 may transmit uplink data to the network device 102 on the PUSCH according to the index value indicated in the SRI and the precoding matrix indicated in the TPMI. At this time, we can say that the PUSCH or the transmission beam of the PUSCH corresponds to the SRS resource indicated by the SRI.

(2) Non-codebook based uplink transmission.

In the present application, a non-codebook based uplink transmission process is described by taking an example in which terminal device 101 sends uplink data to network device 103. The non-codebook based uplink transmission utilizes the reciprocity between uplink and downlink channels, and no predefined codebook is available when the terminal device 101 transmits uplink data to the network device 103. The terminal device 101 measures a downlink signal transmitted by the network device 103, and determines at least one candidate precoding. Assuming that network device 103 allocates resource set B to terminal device 101, terminal device 101 transmits a message to network device 103 through multiple candidate precodes using SRS in resource set B. Wherein, one SRS corresponds to one candidate precoding, and the network device 103 selects an optimal SRS from the received multiple SRS, and indicates an index value of the optimal SRS to the terminal device 101 through SRI. The terminal device 101 may determine the index value of the optimal SRS and the transmission precoding matrix corresponding to the optimal SRS according to the SRI, and further transmit uplink data to the network device 103 on the PUSCH.

In this application, the terminal device 101 may receive DCI transmitted by the network device 102 and/or the network device 103. Optionally, the DCI may include a first sounding reference signal indicating an SRI field and a second SRI field, where a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value are used to indicate an SRS identifier included in an SRS resource set, and the second field value is used to indicate an SRS identifier included in the SRS resource set. Optionally, a first Transmission Precoding Matrix Indication (TPMI) field and a second TPMI field may be included in the DCI. The first TPMI field comprises a first class field value and a second class field value, the second TPMI field comprises a third class field value, the first class field value and the third class field value are used for indicating TPMI corresponding to resources in the SRS resource set, and the second class field value is used for indicating a terminal device to transmit data by using a transmission beam corresponding to one SRS resource set on a PUSCH. In this application, the terminal device 101 may determine, according to the DCI, the number of resource sets used by the terminal device, and further, the terminal device 101 may transmit data to the network device 102 and/or the network device 103 by using a transmission beam corresponding to one or more resource sets on the PUSCH according to the DCI.

In this application, optionally, fig. 1 only schematically illustrates one terminal device and two network devices as examples. In practical applications, the information indication system provided in the present application may further include more terminal devices and network devices than those shown in fig. 1, and the present application does not limit the number of the terminal devices and the number of the network devices.

In this application, the network device mentioned in the information indication system in the above example may be any device with a wireless transceiving function. The network device includes a Base Station (BS), which may be a device deployed in a radio access network and capable of communicating with the terminal device wirelessly. The base station may have various forms, such as a macro base station, a micro base station, a relay station, an access point, and the like. The base station related to the embodiment of the present application may be a base station in a 5G system or a base station in an LTE system, where the base station in the 5G system may also be referred to as a Transmission Reception Point (TRP) or a next generation Node B (generation Node B, gNB, or gnnodeb). In this application, the apparatus for implementing the function of the network device may be a network device; it may also be a device, such as a chip system, capable of supporting the network device to implement the function, and the device may be installed in the network device or used in cooperation with the network device. In the technical solution provided in the embodiment of the present application, a device for implementing a function of a network device is taken as an example of a network device, and the technical solution provided in the embodiment of the present application is described.

In this application, the terminal device mentioned in the information indication system in the above example may be a device providing voice and/or data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. The terminal devices may be mobile terminals such as mobile phones (otherwise known as "cellular" phones) and computers with mobile terminals, e.g., portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, that exchange language and/or data with the network device. Such as Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), and the like. A terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal (remote terminal), an access terminal (access terminal), a user agent (user agent), a user device (user device), or user equipment (user equipment), a subscriber station, a remote station, a user terminal (terminal equipment, TE), a terminal, a wireless communication device, and a user agent or user equipment. In addition, the terminal device may also be a chip system for implementing the UE function. The details are not limited herein.

In the information indication system provided by the application, DCI received by a terminal device includes a first SRI field and a second SRI field, a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value may be used to indicate an identifier of an SRS included in a resource set, and the second field value is used to indicate an identifier of the resource set. The terminal device may determine the number of the resource sets according to the DCI, and further transmit data to one or more network devices on the PUSCH using the transmission beams corresponding to one or more resource sets, thereby saving network resources.

The first information indication method provided by the present application is described based on the system described in fig. 1.

Fig. 2 is an application schematic diagram of an information indication method provided in the present application.

Referring to fig. 2, an example of an information indication method provided in the present application includes steps 201 to 202.

201. And the terminal equipment receives downlink control information DCI sent by the network equipment.

In this application, a network device may allocate a plurality of resource sets to a terminal device. Each SRS resource set includes at least one SRS resource, and the network device may select a transmission beam when the SRS received in the resource set indicates the terminal device to transmit data to the network device. It should be understood that different sets of SRS resources correspond to different transmit beams for PUSCH transmission. The terminal device receives DCI sent by the network device, where each SRI field included in the DCI may indicate an index value of an SRS in one resource set, and the SRI may also indicate an identifier of the resource set.

Optionally, each SRS resource set corresponds to a network device, that is, the network device receives the SRS transmitted on the specific SRS resource set corresponding to the network device and performs measurement. Further, the network device receives a PUSCH transmission corresponding to a transmission beam generated from a specific set of SRS resources corresponding thereto.

Optionally, different SRS resource sets correspond to different SRS transmission power control parameters. Wherein the transmission power control parameter is used for enabling the terminal equipment to determine the SRS transmission power.

By the scheme, the terminal equipment can determine the number of SRS resource sets corresponding to the sending beams on the PUSCH according to the SRI indication. When the first and second SRI fields respectively indicate a first field value and a third field value, the number of SRS resource sets corresponding to a transmission beam on the PUSCH is 2, and when the first and second SRI fields respectively indicate a second field value and a third field value, the number of SRS resource sets corresponding to a transmission beam on the PUSCH is 1, and the SRS resource sets corresponding to the transmission beam are determined according to the indication of the second field value.

In this application, the DCI includes a first sounding reference signal indicating SRI field and a second SRI field, where a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value are used to indicate an SRS identifier included in a resource set, and the second field value is used to indicate an SRS identifier included in the resource set.

Optionally, a first type field value in the first SRI field corresponds to a first SRS resource set, an SRS resource set corresponding to a third type field value in the second SRI field is determined according to a field value indicated by the first SRI field, when the first SRI field indicates the first type field value, the third type field value corresponds to the second SRS resource set, when the first SRI field indicates a field value 1 in the second type field value, the first SRS resource set corresponding to the third type field value, and when the first SRI field indicates a field value 2 in the second type field value, the second SRS resource set corresponding to the third type field value.

Optionally, the first TPMI field and the first TPC field correspond to a first SRS resource set, and the second TPMI field and the second TPC field correspond to a second SRS resource set. When the first SRI field indicates a first type field value, the third type field value corresponds to a second SRS resource set, and the first TPMI field, the first TPC field, the second TPMI field and the second TPC field are effective; when the first SRI field indicates a field value 1 in the second field value, the third field value corresponds to the first SRS resource set, and the first TPMI field and the first TPC field take effect; when the first SRI field indicates field value 2 in the second type field value, the third type field value corresponds to the second SRS resource set, and the second TPMI field and the second TPC field take effect.

Optionally, when the number of SRS resources configured in each SRS resource set is a certain number, for example, the number of SRS resources configured in each SRS resource set is a power of 2.

Table 1 is an application schematic table of a first SRI field provided in the present application.

Referring to table 1, for example, it is assumed that a network device allocates two SRS resource sets, respectively SRS resource set 0 and SRS resource set 1, to a terminal device. The SRS resource set 0 corresponds to the network device 1, and the SRS resource set 1 corresponds to the network device 2, that is, the network device 1 receives the SRS resource set 0, and the network device 2 receives the SRS resource set 1. The SRS resource set 0 and the SRS resource set 1 both include two resources, SRS resource 0 and SRS resource 1.

SRI bit value	SRI(s)
		0	SRS resource 0 (SRS resource set 0)
1	SRS resource 1 (SRS resource set 0)
		2	SRS resource set 0
3	SRS resource set 1

TABLE 1

In this application, the first SRI field includes a first type field value and a second type field value. The first type field value refers to index value 0 and index value 1 in fig. 3, and index value 0 indicates SRS resource 0 in SRS resource set 0. The index value of 1 indicates SRS resource 1 in SRS resource set 1. The second kind of field values refer to index value 2 and index value 3 in fig. 3, and index value 2 indicates SRS resource set 0. An index value of 1 indicates SRS resource set 1.

In this application, optionally, the second field value may indicate an index value 0 and an index value 1, the first field value indicates an index value 2 and an index value 3, and the first SRI field may also adopt other indication manners, where a specific indication manner is not limited here.

In this application, the form of the first SRI field will be described by taking as an example that the network device allocates two SRS resource sets to the terminal device, and that SRS resource set 0 includes two SRS resources. Optionally, the network device may allocate more SRS resource sets to the terminal device, and the SRS resource sets may also include more SRS resources, which is not limited herein.

Table 2 is an application schematic table of a second SRI field provided in the present application.

Referring to table 2, for example, in the second SRI field, the third type field value indicates an index value 0 and an index value 1, and the index value 0 and the index value 1 respectively indicate an SRS resource 0 and an SRS resource 1, and specifically, to which SRS resource set the SRS resource 0 and the SRS resource 1 belong, the determination needs to be performed according to the first SRI field.

TABLE 2

202. And the terminal equipment transmits data by using the transmission beams corresponding to one or more resource sets on a Physical Uplink Shared Channel (PUSCH) according to the DCI.

In this application, optionally, one resource set may correspond to one group of transmission beams, and one resource set may also correspond to multiple groups of transmission beams, which is not limited herein.

Optionally, the transmission of data by using the transmission beam corresponding to one SRS resource set may be understood as a single station reception mode or a single antenna panel reception mode, and the transmission of data by using the transmission beam corresponding to two SRS resource sets may be understood as a multi-station reception mode or a multi-antenna panel reception mode.

Optionally, the PUSCH transmission occupies a first time-frequency resource and a second time-frequency resource, and when the PUSCH uses the transmission beams corresponding to the two SRS resource sets to transmit data, the first time-frequency resource corresponds to the first transmission beam, and the second time-frequency resource corresponds to the second transmission beam. The first time frequency resource and the second time frequency resource may also be a first space/beam domain resource and a second space/beam domain resource, or the first time frequency resource and the second time frequency resource may also be a first code domain resource and a second code domain resource.

In the information indication method provided by the application, DCI received by a terminal device includes a first SRI field and a second SRI field, values of the first SRI field include a first field value and a second field value, values of the second SRI field include a third field value, the first field value and the third field value may be used to indicate an identifier of an SRS included in a resource set, and the second field value is used to indicate an identifier of the resource set. Through the application, the terminal device can determine to transmit data to one or more network devices on the PUSCH by using the transmission beam corresponding to one or more resource sets according to the indication information of the first SRI field. Thereby, the network device can dynamically switch between the single-station reception mode and the multi-station reception mode.

In this application, when the terminal device confirms whether to use a transmission beam corresponding to one or more resource sets to transmit data according to DCI, there is a specific determination manner, which will be described in detail in the following embodiments.

Scene 1: and transmitting data by adopting the transmission beams corresponding to the plurality of resource sets.

In this application, the resource set includes a first resource set and a second resource set, and if the value of the first SRI field is a first field value, the first field value is used to indicate an identifier of an SRS in the first resource set, and the third field value is used to indicate an identifier of an SRS in the second resource set. The terminal equipment confirms to use the transmission beams corresponding to the multiple resource sets to transmit data according to the DCI.

For example, referring to fig. 3 and fig. 4, the network device configures SRS resource set 0 and SRS resource set 1 to the terminal device. The SRS resource set 0 corresponds to the network device 1, and the SRS resource set 1 corresponds to the network device 2. The first SRI field may be selected from SRS resource set 0 to indicate one SRS resource, and may also indicate SRS resource set 0 or SRS resource set 1. The second SRI field indicates one SRS resource selected from SRS resource set 0 or SRS resource set 1.

If the value of the first SRI field is the first type field value (0 or 1), that is, the first SRI field indicates one SRS resource in the SRS resource set 0, the value of the second SRI field is the third type field value (0 or 1), and the third type field value indicates one SRS resource in the SRS resource set 1. The terminal device can confirm that the terminal device needs to select resources in the SRS resource set 0 and the SRS resource set 1 to transmit uplink data on the PUSCH according to the first SRI field and the second SRI field in the DCI, that is, the uplink data transmitted on the PUSCH by the terminal device is received by the network device 1 and the network device 2 together, so as to implement the uplink diversity gain.

Scene 2: and transmitting data by adopting the transmission beam corresponding to the single resource set.

In this application, the resource set includes a first resource set and a second resource set, the second field value includes a first value and a second value, if the value of the first SRI field is the first value, the third field value is used to indicate the identifier of the SRS in the first resource set, and if the value of the first SRI field is the second value, the third field value indicates the identifier of the SRS in the second resource set.

For example, referring to fig. 3 and fig. 4, the network device configures SRS resource set 0 and SRS resource set 1 to the terminal device. The SRS resource set 0 corresponds to the network device 1, and the SRS resource set 1 corresponds to the network device 2. The first SRI field may be selected from SRS resource set 0 to indicate one SRS resource, and may also indicate SRS resource set 0 or SRS resource set 1. The second SRI field indicates one SRS resource selected from the SRS resource set 0 or the SRS resource set 1.

If the value of the first SRI field is a second-class field value, the second-class field value includes a first value (2) and a second value (3), the first value (2) indicates the SRS resource set 0, and the second value (3) indicates the SRS resource set 1. The value of the first SRI field determines to which set of resources the SRS resource selected by the third type field value in the second SRI field belongs.

When the value of the first SRI field is a first value (2), it represents that the first SRI field indicates SRS resource set 0. At this time, the third class field values (0 and 1) in the second SRI field indicate SRS resource 0 and SRS resource 1 in SRS resource set 0, respectively. And the terminal equipment selects the SRS resource set 0 corresponding to the network equipment 1 according to the first SRI field, and selects the SRS resource 0 or the SRS resource 1 in the SRS resource set 0 to transmit uplink data to the network equipment 1 according to the second SRI field.

When the value of the first SRI field is the second value (3), it represents that the first SRI field indicates SRS resource set 1. At this time, the third type field values (0 and 1) in the second SRI field indicate SRS resource 0 and SRS resource 1 in SRS resource set 1, respectively. The terminal equipment selects the SRS resource set 1 corresponding to the network equipment 2 according to the first SRI field, and selects the SRS resource 0 or the SRS resource 1 in the SRS resource set 1 according to the second SRI field to transmit uplink data to the network equipment 2.

Table 3 is another application schematic table of the first SRI field provided in the present application.

Table 4 is another application schematic table of the second SRI field provided in the present application.

Referring to tables 3 and 4, in the present application, optionally, when the number of SRS resources configured in each SRS resource set is a certain number, for example, the number of SRS resources configured in each SRS resource set is not a power of 2, and each of the two SRI indications includes a state (reserved) for indicating the network device. Specifically, as shown in fig. 5, when three SRS resources are configured, the first three states in the index values of the first SRI field and the second SRI field respectively indicate the three SRS resources, and one state is further included to indicate that the terminal device does not use the resource set corresponding to the SRI field to send uplink data. When the two SRI fields indicate the first three states, the receiving of the multi-network equipment is implicitly indicated, at the moment, the SRS resource indicated by the first SRI field is the SRS resource selected from the SRS resource set 0, and the three states in the second SRI field are used for indicating the SRS resource selected from the SRS resource set 1; when the presence of one of the two SRI fields indicates the last state, it implicitly indicates that single network device reception is currently present. At this time, the SRI field and the SRS resource set may be considered to be in one-to-one correspondence, where the first SRI field corresponds to the first SRS resource set, and the second SRI field corresponds to the second SRS resource set. At this time, the SRI field and the network device may be considered to be in one-to-one correspondence, where the first SRI field corresponds to the first network device, and the second SRI field corresponds to the second network device.

SRI bit value	SRI(s)
		0	SRS resource 0 (SRS resource set 0)
1	SRS resource 1 (SRS resource set 0)
		2	SRS resource 2 (SRS resource set 0)
3	reserved

TABLE 3

SRI bit value	SRI(s)
		0	SRS resource 0 (SRS resource set 1)
1	SRS resource 1 (SRS resource set 1)
		2	SRS resource 2 (SRS resource set 1)
3	reserved

TABLE 4

A second information indication method provided in the present application is described based on the system described in fig. 1.

Fig. 3 is an application diagram of an information indication method provided in the present application.

Referring to fig. 3, an example of another information indication method provided by the present application includes steps 301 to 302.

301. And the terminal equipment receives downlink control information DCI sent by the network equipment.

In this application, a network device may allocate a plurality of resource sets to a terminal device. Each SRS resource set includes at least one SRS resource, and the network device may select a transmission beam when the SRS received in the resource set indicates the terminal device to transmit data to the network device. It should be understood that different sets of SRS resources correspond to different transmit beams for PUSCH transmission. The terminal equipment receives DCI sent by the network equipment, wherein the DCI comprises an SRI field, a TPMI field and a TPC field, and each SRS resource set corresponds to one SRI field, one TPMI field and one TPC field. The SRI field indicates the change of the optimal SRS resource, the TPMI selects a precoding matrix based on the indication of the SRI, and the TPC indicates the corresponding power adjustment value.

In the application, the DCI includes a first transmission precoding matrix indication TPMI field, the first TPMI field includes a first field value and a second field value, the second TPMI field includes a third field value, the first field value and the third field value are used for indicating a TPMI corresponding to a resource in a resource set, and the second field value is used for indicating a terminal device to transmit data by using a transmission beam corresponding to the resource set on a physical uplink shared channel PUSCH.

Optionally, each SRS resource set corresponds to a network device, that is, the network device receives the SRS transmitted on the specific SRS resource set corresponding to the network device and performs measurement. Further, the network device receives a PUSCH transmission corresponding to a transmission beam generated from a specific SRS resource set corresponding thereto.

By the scheme, the terminal equipment can determine the number of SRS resource sets corresponding to the transmission beams on the PUSCH according to the TPMI indication. When the first and second TPMI fields respectively indicate a first field value and a third field value, the number of SRS resource sets corresponding to a transmission beam on the PUSCH is 2, and when the first and second TPMI fields respectively indicate a second field value and a third field value, the number of SRS resource sets corresponding to a transmission beam on the PUSCH is 1, and the SRS resource set corresponding to the transmission beam is determined according to an indication of a preset SRI field or a preset TPC field.

Optionally, when the preset first SRI field/first TPC field indicates the first SRS resource set, the second TPMI field, the second SRI field, and the second TPC field all correspond to the first SRS resource set; when the preset first SRI field/first TPC field indicates the second SRS resource set, the second TPMI field, the second SRI field, and the second TPC field all correspond to the second SRS resource set.

Table 5 is an application schematic table of a first TPMI field provided in the present application.

Referring to table 5, for example, it is assumed that the network device allocates two SRS resource sets, namely an SRS resource set 0 and an SRS resource set 1, to the terminal device. Wherein, SRS resource set 0 corresponds to network device 1 and SRS resource set 1 corresponds to network device 2.

TPMI bit value	Non-coherent codebook
		0	1layer:TPMI＝0
1	1layer:TPMI＝1
		2	2layer:TPMI＝0
3	reserved

TABLE 5

In this application, the first TPMI field includes a value of the first type field and a value of the second type field. The values of the first type field refer to index value 0, index value 1 and index value 2 in table 5, where index value 0 and index value 1 indicate two different precoding matrices with 1layer (1 layer) number of transmission layers, and index value 2 indicates one precoding matrix with 2 layers (2 layers) number of transmission layers. The value of the second type field refers to index value 3 in table 5, and index value 3 indicates that the terminal device transmits data on the physical uplink shared channel PUSCH by using a transmission beam corresponding to one resource set.

Optionally, a first type field value in the first TPMI field corresponds to the first SRS resource set, an SRS resource set corresponding to a third type field value in the second TPMI field is determined according to the field value indicated by the first TPMI field, when the first TPMI field indicates the first type field value, the third type field value corresponds to the second SRS resource set, when the first TPMI field indicates a field value 1 in the second type field value, the third type field value corresponds to the first SRS resource set, and when the first TPMI field indicates a field value 2 in the second type field value, the third type field value corresponds to the second SRS resource set.

In this application, optionally, the second field value may indicate an index value 0, an index value 1, or an index value 2, and the first TPMI field may also adopt other indication manners, and a specific indication manner is not limited herein.

302. And the terminal equipment transmits data on the PUSCH by using the transmission beam corresponding to one or more resource sets according to the DCI.

In this application, the form of the first TPMI field will be described by taking as an example that the network device allocates two SRS resource sets to the terminal device, and the first TPMI field includes three types of field values of the first type. Optionally, the network device may allocate more SRS resource sets to the terminal device, and the first TPMI field may include more first type field values, which is not limited herein.

Table 6 is a schematic application diagram of a second TPMI field provided in the present application.

Referring to table 6, for example, in the second TPMI field, the field value of the third type indicates an index value 0 and an index value 1, and the index value 0 and the index value 1 respectively indicate two different precoding matrices indicating that the number of transmission layers is 1layer (1 layer).

TABLE 6

Scene 1: and transmitting data by adopting the transmitting beams corresponding to the plurality of resource sets.

In this application, the resource set includes a first resource set and a second resource set, and if the value of the first TPMI field is a first field value, the first field value is used to indicate a precoding matrix corresponding to the first resource set, and the third field value is used to indicate a precoding matrix corresponding to the second resource set. The terminal equipment confirms to use the transmission beams corresponding to the multiple resource sets to transmit data according to the DCI.

For example, referring to tables 5 and 6, the network device configures SRS resource set 0 and SRS resource set 1 to the terminal device. The SRS resource set 0 corresponds to the network device 1, and the SRS resource set 1 corresponds to the network device 2.

If the value of the first TPMI field is the first type field value (0, 1 or 2), that is, the first TPMI field indicates a precoding matrix corresponding to one SRS resource in the SRS resource set 0, the value of the second TPMI field is the third type field value (0 or 1), and the third type field value indicates a precoding matrix corresponding to one SRS resource in the SRS resource set 1. The terminal device may confirm that the terminal device needs to select resources in the SRS resource set 0 and the SRS resource set 1 to transmit uplink data on the PUSCH according to the first TPMI field and the second TPMI field in the DCI, that is, the uplink data transmitted on the PUSCH by the terminal device is received by the network device 1 and the network device 2 together, so as to implement the uplink diversity gain.

In this application, the resource set includes a first resource set and a second resource set, if the value of the first TPMI field is a second type field value, the SRI field or the TPC field is used to determine an identifier of one resource set, and the third type field value indicates a TPMI corresponding to a resource in one resource set.

If the value of the first TPMI field is the second field value and the value of the first TPMI field is 3 (reserved), the first TPMI field indicates that the terminal device only uses a transmission beam corresponding to one SRS resource set to transmit uplink data to one network device. Specifically selecting which set of SRS resources may interpret the SRI field or the TPC field.

Table 7 is another application schematic table of the first SRI field provided in the present application.

Table 8 is another application schematic table of the second SRI field provided in the present application.

As shown in table 7 and table 8, optionally, if bit 0 indicated by the first SRI field indicates that the current terminal device uses the beam corresponding to the SRS resource set 0 to transmit uplink data to the network device 1, the second TPMI field corresponds to the SRS resource set 0 (network device 1), and the number of the SRI resource indicated by the second SRI field corresponds to the SRS resource set 0 (network device 1). Therefore, the SRS resource set used by the terminal device to transmit uplink data is determined according to the indication of the first TPMI field and the first SRI field.

SRI bit value	SRI
		0	SRS resource 0
1	SRS resource 1

TABLE 7

SRI bit value	SRI
		0	SRS resource set 1
1	SRS resource set 2

TABLE 8

Table 9 is an application schematic table of the first TPC field provided in the present application.

Table 10 is another application schematic table of the second TPC field provided in the present application.

As shown in table 9 and table 10, optionally, if bit 0 indicated by the first TPC field indicates that the current terminal device uses the beam corresponding to SRS resource set 0 to transmit uplink data to network device 1, the second TPMI field corresponds to SRS resource set 0 (network device 1), and the second TPC field corresponds to SRS resource set 0 (network device 1). As can be seen, the SRS resource set corresponding to the second TPMI field and the SRS resource set corresponding to the first SRI field are determined according to the indications of the first TPMI field and the first TPC field.

TPC bit value	Cumulative power/absolute power value [ dB ]]
		0	-1/-4
1	0/-1
		2	1/1
3	3/4

TABLE 9

TPC bit value	Cumulative power/absolute power value [ dB ]]
		0	SRS resource set 1
1	SRS resource set 2
		2	-
3	-

Watch 10

In this application, optionally, the field value of the third class is further used to indicate the number of transmission layers of the PUSCH.

Illustratively, the first TPMI field is shown in table 11 below, the first type field value includes bit values 0-6, the second type field value includes bit value 7, the second TPMI field is shown in table 12 below, and the third type field value includes bit values 0-14. Specifically, when the first TPMI field indicates one of values 0 to 6, the first TPMI field corresponds to the first SRS resource set, and the second TPMI field corresponds to the second SRS resource set; when the bit value of the first TPMI field is 7, the SRS resource set corresponding to the second TPMI field is determined according to a preset SRI field or TPC field. For example, as shown in table 13, when the predetermined SRI/TPC field indicates a bit value of 0, the second TPMI field corresponds to the first SRS resource, and when the predetermined SRI/TPC field indicates a bit value of 1, the second TPMI field corresponds to the second SRS resource.

Bit value	Non-coherent codebook
		0	2layers:TPMI＝0
1	2layer:TPMI＝1
		…	…
6	2layer:TPMI＝6
		7	Reserved

Table 11 first TPMI field example

Bit value	Non-coherent codebook
		0	1layer:TPMI＝0
1	1layer:TPMI＝1
		…	…
3	1layer:TPMI＝3
		4	2layers:TPMI＝0
…	…
		9	2layers:TPMI＝5
10	3layers:TPMI＝0
		11	4layers:TPMI＝0
12	1layer:TPMI＝13
		13	2layer:TPMI＝6
14	3layer:TPMI＝1
		15	Reserved

Table 12 second TPMI field example

Bit value
		0	First set of SRS resources
1	Second set of SRS resources

Table 13 first SRI field/first TPC field examples

For yet another example, a first TPMI field is shown in table 14 below, a first type field value includes bit values of 0-2, a second type field value includes bit values of 3, and a second TPMI field is shown in table 15 below, and a third type field value includes bit values of 0-3.

As shown in table 16 below, a default SRI/TPC field is used to indicate an SRS resource set index value.

Bit value	Non-coherent codebook
		0	1layers:TPMI＝0
1	1layer:TPMI＝1
		2	1layer:TPMI＝2
3	Reserved

Table 14 first TPMI field example

Bit value	Non-coherent codebook
		0	1layers:TPMI＝0
1	1layer:TPMI＝1
		2	2layer:TPMI＝0
3	1layer:TPMI＝2

Table 15 second TPMI field example

Bit value
		0	First set of SRS resources
1	Second set of SRS resources

Table 16 first SRI field/first TPC field examples

Yet another embodiment in the present application is directed to non-codebook transmission, as shown in table 17 below, a first SRI field, a first type field value comprising a bit value of 0-2, a second type field value comprising a bit value of 3, as shown in table 18 below, a second SRI field, and a third type field value comprising a bit value of 0-5. Specifically, when the bit value of the first SRI field is one of 0 to 2, the first SRI field corresponds to the first SRS resource set, and the second SRI field corresponds to the second SRS resource set; and when the bit value of the first SRI field is 3, the SRS resource set corresponding to the second SRI field is determined according to a preset TPC field. For example, as shown in table 16, when the bit value of the preset TPC field is 0, the second SRI field corresponds to the first SRS resource, and when the bit value of the preset TPC field is 1, the second SRI field corresponds to the second SRS resource.

Table 17 first SRI field

Bit value	SRI, number of configured SRS resources N =3
		0	SRS resource 0
1	SRS resource 1
		2	SRS resource 2
3	SRS resource 0,1
		4	SRS resource 0,2
5	SRS resource 1,2
		6	Reserved

Table 18 second SRI field

When it is indicated by the first TPMI field that the terminal device transmits uplink data to the network device through one or more resource sets, in order to save resources, the first TPMI field may indicate only the TPMI without indicating a transmission layer number (rank), the third type field value in the second TPMI field may indicate both the transmission layer number and the TPMI (rank + TPMI), and the rank of the first TPMI field follows the indication of the second TPMI. For example, if the second TPMI field indicates 1layer (bit 0 or 1), the TPMI indicated by the first TPMI field is also 1layer. In this application, the selection of the first TPMI field to indicate that the terminal device transmits uplink data to the network device through one or more resource sets is because the second TPMI field may include an indication of rank + TPMI, while the first TPMI field includes only an indication of TPMI. Thus, the first TPMI field may carry additional indication information for indicating whether the terminal device transmits uplink data to the network device through one or multiple SRS resource sets. In the two information indication methods provided by the present application and in the switching scenario, when the network device switches from single-station reception to multi-station reception, the network device may send, to the terminal device, DCI similar to the DCI described in scenario 1 to instruct the terminal device to send uplink data to multiple network devices on the PUSCH. When the network device switches from multi-station reception to single-station reception, the network device may transmit DCI similar to the DCI described in scenario 2 to the terminal device instructing the terminal device to transmit uplink data on the PUSCH to the single network device.

In the present application, optionally, the bit values of the SRI field, the TPMI field and/or the TPC field mentioned in the above method examples may be selected to be other values than those shown in the above table. And the bit values included in the fields have no sequential relationship. For example, referring to table 19, the bit value of the SRI field in table 1 may be other values than 0,1, 2, and 3, such as other values 5, 8, 12, and 6, which is not limited herein.

Watch 19

In the information indication system provided by the application, DCI received by a terminal device includes a first TPMI field and a second TPMI field, the DCI includes a first transmission precoding matrix indication TPMI field, the first TPMI field includes a first field value and a second field value, the second TPMI field includes a third field value, the first field value and the third field value are used for indicating a TPMI corresponding to a resource in a resource set, and the second field value is used for indicating the terminal device to transmit data using a transmission beam corresponding to the resource set on a physical uplink shared channel PUSCH. The terminal device may determine the number of resource sets according to the DCI, and further transmit data on the PUSCH using the transmission beam corresponding to one or more resource sets. In the method, the terminal equipment transmits data according to the resource set suitable for generating the transmitting wave beam, so that network resources are saved, and the communication efficiency is improved.

The foregoing examples provide different embodiments of an information indicating method, and an information indicating apparatus 40 is provided below, as shown in fig. 4, where the information indicating apparatus 40 is configured to execute steps executed by a terminal device in the foregoing examples, and the executing steps and corresponding beneficial effects are specifically understood with reference to the foregoing corresponding examples, which are not described herein again, and the information indicating apparatus 40 includes:

a receiving unit 401, configured to receive downlink control information DCI sent by a network device, where the DCI includes a first sounding reference signal indicator (SRI) field and a second SRI field, a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value are used to indicate an identifier of an SRS included in a resource set, and the second field value is used to indicate an identifier of the resource set;

a processing unit 402, configured to transmit data using beams corresponding to one or more resource sets on a physical uplink shared channel PUSCH according to the DCI.

In a possible implementation manner, the resource sets include a first resource set and a second resource set, and if the value of the first SRI field is the first field value, the first field value is used to indicate the identities of SRS in the first resource set, and the third field value is used to indicate the identities of SRS in the second resource set.

In a possible implementation manner, the resource set includes a first resource set and a second resource set, the second type field value includes a first value and a second value, if the value of the first SRI field is the first value, the third type field value is used to indicate an identifier of an SRS in the first resource set, and if the value of the first SRI field is the second value, the third type field value indicates an identifier of an SRS in the second resource set.

It should be noted that, for the information interaction, execution process, and other contents between the modules of the information indication apparatus 40, the execution steps are consistent with the details of the above method steps since the method examples are based on the same concept, and reference may be made to the description in the above method examples.

The foregoing examples provide different embodiments of the information indicating apparatus 40, and an information indicating apparatus 50 is provided below, as shown in fig. 5, where the information indicating apparatus 50 is configured to execute steps executed by the terminal device in the foregoing examples, and the executing steps and corresponding beneficial effects are specifically understood with reference to the foregoing corresponding examples, which are not described herein again, and the information indicating apparatus 50 includes:

a receiving unit 501, configured to receive downlink control information DCI sent by a network device, where the DCI includes a first precoding matrix TPMI field, where the first TPMI field includes a first field value and a second field value, the second TPMI field includes a third field value, the first field value and the third field value are used to indicate a TPMI corresponding to a resource in a resource set, and the second field value is used to indicate a terminal device to transmit data using a beam corresponding to a resource set on a physical uplink shared channel PUSCH;

a processing unit 502, configured to transmit data on the PUSCH by using beams corresponding to one or more resource sets according to the DCI.

In a possible implementation manner, the resource set includes a first resource set and a second resource set, if a value of the first TPMI field is the first type field value, the first type field value is used to indicate a TPMI corresponding to a resource in the first resource set, and the third type field value is used to indicate a TPMI corresponding to a resource in the second resource set.

In a possible implementation manner, the resource set includes a first resource set and a second resource set, if the value of the first TPMI field is the second type field value, an SRI field or a TPC field is used to determine the identifier of the one resource set, and the third type field value indicates a TPMI corresponding to a resource in the one resource set.

In a possible implementation manner, the third class field value is further used for indicating a number of transmission layers of the PUSCH.

It should be noted that, for the information interaction, execution process, and other contents between the modules of the information indication apparatus 50, the execution steps are consistent with the details of the above method steps since the method examples are based on the same concept, and reference may be made to the description in the above method examples.

The above examples provide different embodiments of the information indicating apparatus 50, and an information indicating apparatus 60 is provided below, as shown in fig. 6, where the information indicating apparatus 60 is configured to execute steps executed by a network device in the above examples, and the executed steps and corresponding beneficial effects are specifically understood with reference to the above corresponding examples, which are not described herein again, and the information indicating apparatus 60 includes:

a processing unit 601, configured to determine downlink control information DCI, where the DCI includes a first sounding reference signal indicator SRI field and a second SRI field, a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value are used to indicate an identifier of an SRS included in a resource set, and the second field value is used to indicate the identifier of the resource set.

A sending unit 602, configured to send the DCI to the terminal device.

In a possible implementation manner, the resource set includes a first resource set and a second resource set, and if the value of the first SRI field is the first type field value, the first type field value is used to indicate an identifier of an SRS in the first resource set, and the third type field value is used to indicate an identifier of an SRS in the second resource set.

It should be noted that, for the information interaction, execution process, and other contents between the modules of the information indicating apparatus 60, the execution steps are consistent with the details of the above method steps since the method examples are based on the same concept, and reference may be made to the description in the above method examples.

The foregoing examples provide different embodiments of an information indicating apparatus 60, and an information indicating apparatus 70 is provided below, as shown in fig. 7, where the information indicating apparatus 70 is configured to perform the steps performed by the network device in the foregoing examples, and the performing steps and the corresponding beneficial effects are specifically understood with reference to the foregoing corresponding examples, which are not described herein again, and the information indicating apparatus 70 includes:

a processing unit 701, configured to determine downlink control information DCI, where the DCI includes a first precoding matrix TPMI field, where the first TPMI field includes a first class field value and a second class field value, the second TPMI field includes a third class field value, the first class field value and the third class field value are used to indicate a TPMI corresponding to a resource in a resource set, and the second class field value is used to indicate that the terminal device transmits data using a beam corresponding to one resource set on a physical uplink shared channel PUSCH;

a sending unit 702, configured to send the DCI to the terminal device.

In one possible implementation manner, the resource set includes a first resource set and a second resource set, if the value of the first TPMI field is the first type field value, the first type field value is used to indicate a TPMI corresponding to a resource in the first resource set, and the third type field value is used to indicate a TPMI corresponding to a resource in the second resource set.

In one possible implementation manner, the resource sets include a first resource set and a second resource set, if the value of the first TPMI field is the second type field value, the sounding reference signal indicates an SRI field or a TPC field for determining an identifier of the one resource set, and the third type field value indicates a TPMI corresponding to a resource in the one resource set.

It should be noted that, for the information interaction, execution process, and the like between the modules of the information indicating apparatus 70, the execution steps are consistent with the details of the method steps, and reference may be made to the description in the method examples.

The embodiment of the present application further provides a communication apparatus 800, where the communication apparatus 800 may be a terminal device or a chip. The communication apparatus 800 may be configured to perform the operations performed by the terminal device in the above method embodiments. When the communication apparatus 800 is a terminal device, fig. 8 shows an internal structure diagram of a module included in the terminal device. For ease of understanding and illustration. As shown in fig. 8, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output means.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 8, and one or more processors and one or more memories may be present in an actual end device article. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device.

The terminal device includes a transceiving unit 801 and a processing unit 802. The transceiving unit 801 may also be referred to as a transceiver, a transceiving means, etc. The processing unit 802 may also be referred to as a processor, a processing board, a processing module, a processing device, or the like.

Alternatively, a device for implementing a receiving function in the transceiving unit 801 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 801 may be regarded as a transmitting unit, that is, the transceiving unit 801 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

For example, in one implementation, the transceiving unit 801 is configured to perform a receiving operation of a terminal device. The processing unit 802 is configured to perform a processing action on the terminal device side.

It should be understood that fig. 8 is merely an example and not a limitation, and the terminal device including the transceiving unit and the processing unit may not depend on the structure shown in fig. 8.

When the communication device 800 is a chip, the chip includes a transceiving unit and a processing unit. The transceiving unit can be an input/output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. The input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the signal output by the output circuit may be, for example and without limitation, output to and transmitted by a transmitter, and the input circuit and the output circuit may be different circuits or the same circuit, in which case the circuits function as the input circuit and the output circuit, respectively, at different times.

It should be noted that, for the contents of information interaction, execution process, and the like between the modules of the communication device 800 provided in the foregoing embodiment, since the same idea is based on the same idea as that of the method embodiment of the present application, the technical effect brought by the contents is the same as that of the method embodiment of the present invention, and specific contents may refer to the description in the foregoing method embodiment of the present application, and are not described again here.

Referring to fig. 9, a schematic structural diagram of a network device 900 is provided for the present application, where the network device 900 includes: a processor 902, a communication interface 903, and a memory 901. Optionally, a bus 904 may be included. Wherein the communication interface 903, the processor 902, and the memory 901 may be connected to each other through a bus 904; the bus 904 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus. The network device 900 may implement the functions of the information indicating apparatus 60 or the information indicating apparatus 70 in the examples shown in fig. 6 or fig. 7. The processor 902 and the communication interface 903 may perform the operations corresponding to the network device in the above method examples.

The following specifically describes each constituent element of the network device with reference to fig. 9:

the memory 901 may be a volatile memory (volatile memory), such as a random-access memory (RAM); or a non-volatile memory (non-volatile memory), such as a read-only memory (ROM), a flash memory (flash memory), a hard disk (HDD) or a solid-state drive (SSD); or a combination of the above types of memories, for storing program code, configuration files, or other content that may implement the methods of the present application.

The processor 902 is a control center of the controller, and may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the examples provided in this application, such as: one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).

The communication interface 903 is used for communication with other devices.

The processor 902 may perform the operations performed by the information indicating apparatus 60 or the information indicating apparatus 70 in the foregoing examples shown in fig. 6 and fig. 7, which are not described herein again in detail.

It should be noted that, for the information interaction, the execution process, and the like between the modules of the network device 900, the execution steps are consistent with the details of the above method steps since the method examples are based on the same concept, and reference may be made to the description in the above method examples.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some interfaces, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

Claims

1. An information indication method, comprising:

a terminal device receives Downlink Control Information (DCI) sent by a network device, wherein the DCI comprises a first detection reference signal (SRS) indicating an SRI field and a second SRI field, the value of the first SRI field comprises a first field value and a second field value, the value of the second SRI field comprises a third field value, the first field value and the third field value are used for indicating an SRS identifier included in a resource set, and the second field value is used for indicating the identifier of the resource set;

and the terminal equipment transmits data by using one or more sending beams corresponding to the resource sets on a Physical Uplink Shared Channel (PUSCH) according to the DCI.

2. The information indication method of claim 1, wherein the resource set comprises a first resource set and a second resource set, and if the value of the first SRI field is the first type field value, the first type field value is used to indicate the identity of SRS in the first resource set, and the third type field value is used to indicate the identity of SRS in the second resource set.

3. The information indicating method of claim 1, wherein the resource set comprises a first resource set and a second resource set, wherein the second type field value comprises a first value and a second value, and wherein the third type field value is used for indicating the identity of the SRS in the first resource set if the value of the first SRI field is the first value, and wherein the third type field value indicates the identity of the SRS in the second resource set if the value of the first SRI field is the second value.

4. An information indication method, comprising:

the method comprises the steps that terminal equipment receives Downlink Control Information (DCI) sent by network equipment, wherein the DCI comprises a first Transmission Precoding Matrix Indication (TPMI) field and a second TPMI field, the first TPMI field comprises a first field value and a second field value, the second TPMI field comprises a third field value, the first field value and the third field value are used for indicating TPMI corresponding to resources in a resource set, and the second field value is used for indicating that the terminal equipment transmits data by using a sending beam corresponding to the resource set on a Physical Uplink Shared Channel (PUSCH);

and the terminal equipment transmits data by using the transmission beam corresponding to one or more resource sets on the PUSCH according to the DCI.

5. The method according to claim 4, wherein the resource sets include a first resource set and a second resource set, and if the value of the first TPMI field is the first field value, the first field value is used to indicate the TPMI corresponding to the resource in the first resource set, and the third field value is used to indicate the TPMI corresponding to the resource in the second resource set.

6. The information indication method of claim 4, wherein the resource set comprises a first resource set and a second resource set, and if the value of the first TPMI field is the second type field value, an SRI field or a TPC field is used for determining the identity of the one resource set, and the third type field value indicates the corresponding TPMI of the resource in the one resource set.

7. The information indication method according to claims 4 to 6, wherein the third type field value is further used for indicating the number of transmission layers of the PUSCH.

8. An information indication method, comprising:

the method comprises the steps that network equipment determines Downlink Control Information (DCI), wherein the DCI comprises a first detection reference signal (SRS) field and a second SRI field, the value of the first SRI field comprises a first field value and a second field value, the value of the second SRI field comprises a third field value, the first field value and the third field value are used for indicating the identification of an SRS included in a resource set, and the second field value is used for indicating the identification of the resource set;

and the network equipment sends the DCI to the terminal equipment.

9. The information indication method of claim 8, wherein the resource set comprises a first resource set and a second resource set, and wherein if the value of the first SRI field is the first type field value, the first type field value is used to indicate the identity of SRS in the first resource set, and the third type field value is used to indicate the identity of SRS in the second resource set.

10. The information indication method of claim 8, wherein the resource set comprises a first resource set and a second resource set, wherein the second type field value comprises a first value and a second value, and wherein the third type field value is used to indicate the identity of the SRS in the first resource set if the value of the first SRI field is the first value, and wherein the third type field value indicates the identity of the SRS in the second resource set if the value of the first SRI field is the second value.

11. An information indication method, comprising:

the method comprises the steps that network equipment determines Downlink Control Information (DCI), wherein the DCI comprises a first Transmission Precoding Matrix Indication (TPMI) field, the first TPMI field comprises a first class field value and a second class field value, the second TPMI field comprises a third class field value, the first class field value and the third class field value are used for indicating TPMI corresponding to resources in a resource set, and the second class field value is used for indicating that the terminal equipment transmits data by using a transmission beam corresponding to one resource set on a Physical Uplink Shared Channel (PUSCH);

and the network equipment sends the DCI to the terminal equipment.

12. The method according to claim 11, wherein the resource set comprises a first resource set and a second resource set, and if the value of the first TPMI field is the first type field value, the first type field value is used to indicate a TPMI corresponding to a resource in the first resource set, and the third type field value is used to indicate a TPMI corresponding to a resource in the second resource set.

13. The information indication method of claim 11, wherein the resource sets comprise a first resource set and a second resource set, and if the value of the first TPMI field is the second type field value, the sounding reference signal indicates an SRI field or a TPC field for determining the identity of the one resource set, and the third type field value indicates a corresponding TPMI of a resource in the one resource set.

14. The information indication method according to claims 11 to 13, wherein the third type field value is further used for indicating the number of transmission layers of the PUSCH.

15. An information indicating device, comprising:

a receiving unit, configured to receive downlink control information DCI sent by a network device, where the DCI includes a first sounding reference signal indicator (SRI) field and a second SRI field, a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value are used to indicate an identifier of an SRS included in a resource set, and the second field value is used to indicate an identifier of the resource set;

and the processing unit is used for transmitting data by using one or more transmission beams corresponding to the resource sets on a Physical Uplink Shared Channel (PUSCH) according to the DCI.

16. The apparatus of claim 15, wherein the set of resources comprises a first set of resources and a second set of resources, and wherein if the value of the first SRI field is the first type field value, the first type field value is used to indicate the identity of SRS in the first set of resources, and the third type field value is used to indicate the identity of SRS in the second set of resources.

17. The apparatus of claim 15, wherein the set of resources comprises a first set of resources and a second set of resources, wherein the second type field value comprises a first value and a second value, and wherein the third type field value is used to indicate the identity of the SRS in the first set of resources if the value of the first SRI field is the first value, and wherein the third type field value indicates the identity of the SRS in the second set of resources if the value of the first SRI field is the second value.

18. An information indicating device, comprising:

a receiving unit, configured to receive downlink control information DCI sent by a network device, where the DCI includes a first transmission precoding matrix indicator TPMI field, where the first TPMI field includes a first field value and a second field value, the second TPMI field includes a third field value, the first field value and the third field value are used to indicate a TPMI corresponding to a resource in a resource set, and the second field value is used to indicate a terminal device to transmit data using a transmission beam corresponding to one resource set on a physical uplink shared channel PUSCH;

and the processing unit is used for transmitting data on the PUSCH by using the transmission beam corresponding to one or more resource sets according to the DCI.

19. The apparatus of claim 18, wherein the resource set comprises a first resource set and a second resource set, and wherein if the value of the first TPMI field is the first type field value, the first type field value is used to indicate a TPMI corresponding to a resource in the first resource set, and the third type field value is used to indicate a TPMI corresponding to a resource in the second resource set.

20. The apparatus of claim 18, wherein the resource set comprises a first resource set and a second resource set, and if the value of the first TPMI field is the second type field value, an SRI field or a TPC field is used to determine the identifier of the one resource set, and the third type field value indicates the corresponding TPMI of the resource in the one resource set.

21. The apparatus according to claims 18 to 20, wherein the third type field value is further used for indicating the number of transmission layers of the PUSCH.

22. An information indicating device, comprising:

a processing unit, configured to determine downlink control information DCI, where the DCI includes a first sounding reference signal indicator (SRI) field and a second SRI field, a value of the first SRI field includes a first field value and a second field value, a value of the second SRI field includes a third field value, the first field value and the third field value are used to indicate an identifier of an SRS included in a resource set, and the second field value is used to indicate the identifier of the resource set;

and the sending unit is used for sending the DCI to the terminal equipment.

23. The apparatus of claim 22, wherein the set of resources comprises a first set of resources and a second set of resources, and wherein if the value of the first SRI field is the first type field value, the first type field value is used to indicate identities of SRS in the first set of resources, and the third type field value is used to indicate identities of SRS in the second set of resources.

24. The apparatus of claim 22, wherein the set of resources comprises a first set of resources and a second set of resources, wherein the second type field value comprises a first value and a second value, and wherein if the first SRI field value is the first value, the third type field value is used to indicate the identity of SRS in the first set of resources, and if the first SRI field value is the second value, the third type field value indicates the identity of SRS in the second set of resources.

25. An information indicating device, comprising:

a processing unit, configured to determine downlink control information DCI, where the DCI includes a first transmission precoding matrix indicator TPMI field, where the first TPMI field includes a first class field value and a second class field value, the second TPMI field includes a third class field value, the first class field value and the third class field value are used to indicate a TPMI corresponding to a resource in a resource set, and the second class field value is used to indicate that the terminal device transmits data using a transmission beam corresponding to one resource set on a physical uplink shared channel PUSCH;

and the sending unit is used for sending the DCI to the terminal equipment.

26. The apparatus of claim 25, wherein the resource set comprises a first resource set and a second resource set, and wherein if the value of the first TPMI field is the first type field value, the first type field value is used to indicate a TPMI corresponding to a resource in the first resource set, and the third type field value is used to indicate a TPMI corresponding to a resource in the second resource set.

27. The apparatus of claim 25, wherein the resource sets comprise a first resource set and a second resource set, and wherein if the value of the first TPMI field is the second type field value, a sounding reference signal (srs) indicates an SRI field or a TPC field for determining the identity of the one resource set, and wherein the third type field value indicates a corresponding TPMI of a resource in the one resource set.

28. The apparatus according to any of claims 25 to 27, wherein the third type field value is further used for indicating the number of transmission layers of the PUSCH.

29. A communications apparatus, comprising: a processor for reading instructions stored in a memory to cause the communication device to perform the method of any of claims 1 to 3 or to cause the communication device to perform the method of any of claims 4 to 7.

30. A communications apparatus, comprising: a processor for reading instructions stored in a memory to cause the communication device to perform the method of any of claims 8 to 10 or to cause the communication device to perform the method of any of claims 10 to 14.

31. A computer-readable storage medium having stored therein instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 3, or cause the computer to perform the method of any one of claims 4 to 7, or cause the computer to perform the method of any one of claims 8 to 10, or cause the computer to perform the method of any one of claims 10 to 14.

32. A chip comprising a processor for reading instructions to perform the method of any one of claims 1 to 3, or to perform the method of any one of claims 4 to 7, or to perform the method of any one of claims 8 to 10, or to perform the method of any one of claims 10 to 14.

33. A computer program product, characterized in that it comprises a computer program which, when said program is run by a computer, implements the method of any one of claims 1-14.