Communication method and apparatus, and computer-readable storage medium

Abstract

The present application relates to the technical field of communications. Provided are a communication method and apparatus, and a computer-readable storage medium. The method comprises: a network device sending first information to a terminal, and correspondingly, the terminal receiving the first information, wherein the first information comprises first indication information and / or second indication information, the first indication information is used for determining at least one channel sounding reference signal resource, and the second indication information is used for determining a precoding matrix; and the terminal device using three antenna ports to send a physical uplink shared channel (PUSCH) on the basis of the precoding matrix, and correspondingly, the network device receiving the PUSCH, wherein the three antenna ports are antenna ports used for sending the at least one channel sounding reference signal resource. By means of the solution in the present disclosure, a terminal can be configured and scheduled to use three antenna ports to send a PUSCH.

Description

Communication method and device, and computer-readable storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 26, 2023, with application number 202311815707.3 and application name “Communication Method and Device, Computer-readable Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and device, and a computer-readable storage medium. Background Art

[0003] From a product development perspective, to improve uplink transmission performance while minimizing development complexity, mobile devices using three antenna ports are currently a hot development direction. Although protocols support uplink transmission with up to eight antenna ports, existing mobile devices typically only use one or two uplink antenna ports. Existing protocols cannot support dispatching terminals using three antenna ports for uplink transmission.

[0004] Therefore, there is an urgent need to provide an enhanced scheduling mechanism that can design and schedule the terminal to use three antenna ports to send the Physical Uplink Shared Channel (PUSCH) to meet the needs of mobile devices using three antenna ports. Summary of the Invention

[0005] The technical problem solved by this application is how to schedule a terminal to use three antenna ports to send PUSCH.

[0006] To solve the above technical problems, an embodiment of the present application provides a communication method, including: receiving first information, the first information including first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine a precoding matrix; according to the precoding matrix, three antenna ports are used to send a physical uplink shared channel, wherein the three antenna ports are antenna ports used to send at least one channel sounding reference signal resource.

[0007] Optionally, the first information includes second indication information, and the method further includes: receiving the second information, where the second information is used to configure at least one channel sounding reference signal resource.

[0008] Optionally, the method further includes: receiving second information, where the second information is used to configure multiple candidate channel sounding reference signal resources, and at least one channel sounding reference signal resource is selected from the multiple candidate channel sounding reference signal resources.

[0009] Optionally, the first indication information is used to determine at least one channel sounding reference signal resource from multiple candidate channel sounding reference signal resources.

[0010] Optionally, the candidate channel sounding reference signal resources include any one of the following: K1 single-port channel sounding reference signal resources, K1 is an integer greater than 3; K2 2-port channel sounding reference signal resources, K2 is an integer greater than 2; K3 2-port channel sounding reference signal resources and K4 single-port channel sounding reference signal resources, K3 and K4 are both integers greater than 1; K5 4-port channel sounding reference signal resources, K5 is an integer greater than 1.

[0011] Optionally, the method further includes: receiving third information, where the third information is used to indicate that the configuration information in the second information is used for 3-antenna port transmission.

[0012] Optionally, at least one channel sounding reference signal resource includes any one of the following: three single-port channel sounding reference signal resources; two 2-port channel sounding reference signal resources; one 2-port channel sounding reference signal resource and one single-port channel sounding reference signal resource; one 4-port channel sounding reference signal resource.

[0013] Optionally, the precoding matrix is ​​selected from a candidate precoding matrix set, where the candidate precoding matrix set includes at least one of the following:

[0014] Optionally, the second indication information includes: the number of layers and a sending precoding matrix indication, and the precoding matrix is ​​jointly determined according to the number of layers and the sending precoding matrix indication.

[0015] Optionally, the power scaling factor of the physical uplink shared channel is a ratio of the number of non-zero power antenna ports used to transmit the physical uplink shared channel to 3.

[0016] To solve the above technical problems, an embodiment of the present application also provides a communication method, including: sending first information, the first information including first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine a precoding matrix; receiving a physical uplink shared channel, wherein the physical uplink shared signal is sent according to the precoding matrix and using three antenna ports, and the three antenna ports are antenna ports used to send at least one channel sounding reference signal resource.

[0017] Optionally, the first information includes second indication information, and the method further includes: sending the second information, where the second information is used to configure at least one channel sounding reference signal resource.

[0018] Optionally, the method further includes: sending second information, where the second information is used to configure multiple candidate channel sounding reference signal resources, and at least one channel sounding reference signal resource is selected from the multiple candidate channel sounding reference signal resources.

[0019] Optionally, the first indication information is used to determine at least one channel sounding reference signal resource from multiple candidate channel sounding reference signal resources.

[0020] Optionally, the candidate channel sounding reference signal resources include any one of the following: K1 single-port channel sounding reference signal resources, K1 is an integer greater than 3; K2 2-port channel sounding reference signal resources, K2 is an integer greater than 2; K3 2-port channel sounding reference signal resources and K4 single-port channel sounding reference signal resources, K3 and K4 are both integers greater than 1; K5 4-port channel sounding reference signal resources, K5 is an integer greater than 1.

[0021] Optionally, the method further includes: sending third information, where the third information is used to indicate that the configuration information in the second information is used for 3-antenna port transmission.

[0022] Optionally, at least one channel sounding reference signal resource includes any one of the following: three single-port channel sounding reference signal resources; two 2-port channel sounding reference signal resources; one 2-port channel sounding reference signal resource and one single-port channel sounding reference signal resource; one 4-port channel sounding reference signal resource.

[0023] Optionally, the precoding matrix is ​​selected from a candidate precoding matrix set, where the candidate precoding matrix set includes at least one of the following:

[0024] Optionally, the second indication information includes: the number of layers and a sending precoding matrix indication, and the precoding matrix is ​​jointly determined according to the number of layers and the sending precoding matrix indication.

[0025] Optionally, the power scaling factor of the physical uplink shared channel is a ratio of the number of non-zero power antenna ports used to transmit the physical uplink shared channel to 3.

[0026] To solve the above technical problems, an embodiment of the present application also provides a communication device, including: a receiving module for receiving first information, the first information including first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine a precoding matrix; a sending module for sending a physical uplink shared channel using three antenna ports according to the precoding matrix, wherein the three antenna ports are antenna ports used to send at least one channel sounding reference signal resource.

[0027] To solve the above technical problems, an embodiment of the present application also provides a communication device, including: a sending module for sending first information, the first information includes first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine a precoding matrix; a receiving module for receiving a physical uplink shared channel, wherein the physical uplink shared signal is sent according to the precoding matrix and using three antenna ports, and the three antenna ports are antenna ports used to send at least one channel sounding reference signal resource.

[0028] To solve the above technical problems, an embodiment of the present application also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, on which a computer program is stored. When the computer program is run by a computer, the steps of the above method are executed.

[0029] To solve the above technical problems, an embodiment of the present application further provides a communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of the above method when running the computer program.

[0030] To solve the above technical problems, an embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program runs on a computer, it enables the computer to execute the steps of the above method.

[0031] To solve the above technical problems, an embodiment of the present application also provides a communication system, including a network device and a terminal for executing the above method.

[0032] In order to solve the above technical problems, an embodiment of the present application further provides a chip (or a communication device) on which a computer program is stored. When the computer program is executed by the chip, the steps of the above method are implemented.

[0033] Compared with the prior art, the technical solution of the embodiment of the present application has the following beneficial effects:

[0034] This embodiment provides a communication method, including: a network device sends first information to a terminal, and accordingly, the terminal receives the first information, the first information including first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine a precoding matrix; the terminal device uses three antenna ports to send a physical uplink shared channel according to the precoding matrix, and accordingly, the network device receives the physical uplink shared channel, wherein the three antenna ports are the antenna ports used to send at least one channel sounding reference signal resource.

[0035] Compared with the existing technology that cannot support uplink scheduling of 3-antenna terminals, this implementation scheme enhances the uplink scheduling information, for example, carrying the first indication information and / or the second indication information in the first information, and reasonably designs the configuration of the channel sounding reference signal (SRS) resources and the codebook (i.e., precoding matrix) for 3-antenna port transmission, so as to enable the scheduling terminal to use 3 antenna ports to send PUSCH.

[0036] Furthermore, this implementation can reduce protocol changes and enable the scheduling terminal to use three antenna ports to send PUSCH without enhancing SRS resources (for example, without introducing SRS resources for three antenna ports). BRIEF DESCRIPTION OF THE DRAWINGS

[0037] FIG1 is a signaling interaction diagram of a communication method according to the first embodiment of the present application;

[0038] FIG2 is a signaling interaction diagram of a communication method according to a second embodiment of the present application;

[0039] FIG3 is a schematic structural diagram of a communication device according to a third embodiment of the present application;

[0040] FIG4 is a schematic structural diagram of a communication device according to a fourth embodiment of the present application;

[0041] FIG5 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] The method provided in the embodiment of the present application involves a network device and a terminal, and uplink and downlink signals can be transmitted between the network device and the terminal.

[0043] The terminal in the embodiments of the present application is a device with wireless communication capabilities, which can be referred to as user equipment (UE), terminal equipment, mobile station (MS), mobile terminal (MT), access terminal equipment, vehicle-mounted terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile device, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. The terminal can be fixed or mobile. It should be noted that the terminal can support at least one wireless communication technology, such as Long Term Evolution (LTE) and New Radio (NR). For example, the terminal may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, an all-in-one computer, an in-vehicle terminal, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future mobile communication network, or a terminal device in a future evolved public mobile land network (PLMN), etc. In some embodiments of the present application, the terminal may also be a device with transceiver functions, such as a chip system, wherein the chip system may include a chip and may also include other discrete devices.

[0044] In the embodiment of the present application, a network device is a device that provides wireless communication functions for a terminal, and may also be referred to as an access network device, a radio access network (RAN) device, or an access network element. The network device may support at least one wireless communication technology, such as LTE, NR, etc. For example, the network device includes, but is not limited to, a next-generation base station (gNB) in a fifth-generation mobile communication system (5G), an evolved node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved node B, or home node B, HNB), a baseband unit (BBU), a transmitting and receiving point (TRP), a transmitting point (TP), a mobile switching center, etc. The network device may also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the access network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, a network device in future mobile communications, or a network device in a future evolved PLMN. In some embodiments, the network device may also be a device that provides wireless communication functions for a terminal, such as a chip system. For example, the chip system may include a chip and may also include other discrete devices.

[0045] As mentioned in the background technology, from the perspective of product development, in order to improve uplink transmission performance while minimizing development difficulty, it is considered to design a mobile device with three antenna ports. Accordingly, the New Radio (NR) protocol requires the design of a scheduling terminal to use three antenna ports to send PUSCH. To more clearly illustrate the present application solution, the following briefly introduces the uplink scheduling process of the existing NR protocol.

[0046] Specifically, before scheduling a terminal to transmit PUSCH, the base station first measures the SRS sent by the terminal and determines the precoding used for the terminal's PUSCH transmission. The number of antenna ports supported for SRS is 1, 2, 4, or 8. The base station schedules the terminal by sending uplink scheduling information to the terminal. This uplink scheduling information can be high-layer configuration grant signaling or physical layer downlink control information (DCI).

[0047] Furthermore, the uplink scheduling information includes an SRS resource indication field and a precoding information and number of layers indication field. The SRS resource indication field is used to indicate an SRS resource, and the number of antenna ports for the indicated SRS resource determines the number of antenna ports used to transmit the PUSCH. The precoding information and number of layers indication field is used to indicate the number of layers for PUSCH transmission and the transmitted precoding matrix indicator (TPMI) used. The TPMI is used to indicate the index of the codebook in the codebook set, and the TPMI corresponds to a precoding matrix.

[0048] Table 1 is one of the tables corresponding to the precoding information and layer number indication fields in the 3GPP TS38.212 protocol. As shown in Table 1, for a terminal supporting 2-port coherent codebook transmission, when the value indicated by this field is 2, it means that the number of layers sent by the PUSCH is 1 and TPMI = 2.

[0049] Table 1

[0050] According to the protocol, the corresponding precoding table when the number of layers is 1 is shown in Table 2. By looking up the table, we can see that the precoding matrix corresponding to TPMI=2 is

[0051] Table 2

[0052] In addition, when a user transmits PUSCH, power scaling is required. The power scaling factor is equal to the ratio of the number of non-zero antenna ports used to transmit PUSCH to the maximum number of ports supported for SRS resources. The maximum number of ports supported for SRS resources reflects the maximum number of antenna ports used.

[0053] Although the protocol supports up to eight antenna ports for uplink transmission, existing mobile devices typically use only one or two uplink antenna ports. To accommodate terminals using three antenna ports while minimizing protocol changes, the challenge remains to schedule terminals to use three antenna ports for PUSCH transmission without enhancing SRS resources (i.e., without introducing three-port SRS resources).

[0054] To solve the above technical problems, this embodiment provides a communication method, including: a network device sends first information to a terminal, and accordingly, the terminal receives the first information, the first information includes first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine a precoding matrix; the terminal device uses three antenna ports to send a physical uplink shared channel according to the precoding matrix, and accordingly, the network device receives the physical uplink shared channel, wherein the three antenna ports are the antenna ports used to send at least one channel sounding reference signal resource.

[0055] This implementation scheme enhances the uplink scheduling information, for example, by carrying the first indication information and / or the second indication information in the first information, and by reasonably designing the configuration of the channel sounding reference signal (SRS) resources and the codebook (i.e., precoding matrix) for 3-antenna port transmission, so as to enable the scheduling terminal to use 3 antenna ports to send PUSCH.

[0056] In order to make the above-mentioned objectives, features and beneficial effects of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0057] FIG1 is a signaling interaction diagram of a communication method according to the first embodiment of the present application.

[0058] This embodiment can be applied to an uplink scheduling scenario, in which the terminal has the capability of using three antenna ports for uplink transmission. Furthermore, the terminal scheduled in this embodiment can preferably be a mobile device.

[0059] In a specific implementation, in the communication method provided in the following steps (abbreviated as S) 101 to S102, the actions performed by the terminal can be performed by a chip with communication functions in the terminal or by a baseband chip in the terminal. The actions performed by the network device can be performed by a chip with communication functions in the network device or by a baseband chip in the network device.

[0060] Specifically, referring to FIG1 , the communication method of this embodiment may include the following steps:

[0061] S101: A network device sends first information to a terminal. Correspondingly, the terminal receives the first information from the network device. The first information may include first indication information and / or second indication information ( FIG1 exemplifies the example of the first information including the second indication information). The first indication information is used to determine at least one SRS resource, and the second indication information is used to determine a precoding matrix.

[0062] Furthermore, the first information may also be called uplink scheduling information, which is used to schedule the terminal to send PUSCH.

[0063] In some embodiments, the first information may include an x-bit first indication field for carrying first indication information, where x≥0 and is an integer. The first indication field may correspond to an SRS resource indication field (SRS indicator, SRI).

[0064] In some embodiments, the first information may include a y-bit second indication field for carrying second indication information. Where y is a positive integer. The second indication information may include the number of layers and a transmit precoding matrix indication. The precoding matrix is ​​determined jointly based on the number of layers and the transmit precoding matrix indication. The number of layers specifically refers to the number of layers in the precoding matrix. In other words, the second indication field may correspond to the precoding information and the number of layers indication field.

[0065] In a specific implementation, the first information may be carried by a configuration authorization signaling of a higher layer, such as by an RRC, or may be carried by a DCI of a physical layer.

[0066] In a specific implementation, the first information may not include the first indication information, but only include the second indication information, as shown in Figure 1. In other words, the first indication field may be 0 bits.

[0067] Furthermore, before executing S101, the communication method of this embodiment may further include S100: the network device sends second information to the terminal. Accordingly, the terminal receives the second information. The second information is used to configure at least one SRS resource. Thus, before receiving the uplink scheduling information sent by the network device, the terminal also receives an SRS resource set configured by the network device for codebook transmission measurement, where the SRS resource set includes at least one SRS resource.

[0068] In some embodiments, the at least one SRS resource may include any one of the following: three single-port SRS resources; two 2-port SRS resources; one 2-port SRS resource and one single-port SRS resource; or one 4-port SRS resource.

[0069] Specifically, in S100, the network device configures one of the four possible combinations for the terminal through the second information, and the antenna ports of the configured SRS resources (combination) have substantially no redundancy.

[0070] Furthermore, unlike the existing SRI, which must have 2 bits to indicate one of the multiple configured SRS resources, the first indication field (i.e., the SRI field) in the first information of this specific implementation can be 0 bits, because all of the at least one configured SRS resource must be used to transmit the PUSCH. Therefore, in this specific implementation, the first information only indicates the precoding matrix through the precoding information and the layer number indication field.

[0071] In one specific implementation, with continued reference to FIG1 , the communication method of this embodiment may further include S102: the terminal transmits a PUSCH using three antenna ports according to the precoding matrix. Accordingly, the network device receives the PUSCH. The three antenna ports are antenna ports used to transmit at least one SRS resource.

[0072] Specifically, the three antenna ports may be non-coherent.

[0073] Furthermore, the precoding matrix may be selected from a set of candidate precoding matrices, where the set of candidate precoding matrices includes at least one of the following: Therefore, the 3-port precoding matrix is ​​determined by the second indication information, and then the precoding matrix is ​​used to send the PUSCH.

[0074] For example, the candidate precoding matrix set may be defined as shown in Table 3 below in a predefined or preconfigured manner:

[0075] Table 3

[0076] In Table 3, candidate precoding matrices of different numbers of layers are integrated into one table for configuration.

[0077] In response to receiving the first information, the terminal determines the precoding matrix used for sending the PUSCH this time according to the TPMI index indicated by the second indication information in the first information. For example, assuming that the code point of the second indication field in the first information is 000, the corresponding TPMI index is 0. Accordingly, the preset coding matrix used this time is For another example, assuming that the code point of the second indicator field in the first information is 100, corresponding to the TPMI index 4, the precoding matrix used when sending the PUSCH in S102 is

[0078] In one variation, candidate precoding matrices for the same number of layers can be integrated into one table, and candidate precoding matrices for different numbers of layers can be defined in different tables. Furthermore, all defined tables can be pre-indicated to the terminal in a preconfigured or predefined manner.

[0079] For example, the following Tables 4 to 6 may be predefined:

[0080] Table 4

[0081] Table 4 corresponds to the candidate precoding matrix when the number of layers is 1.

[0082] Table 5

[0083] Table 5 corresponds to the candidate precoding matrix when the number of layers is 2.

[0084] Table 6

[0085] Table 6 corresponds to the candidate precoding matrix when the number of layers is 3.

[0086] In response to receiving the first information, the terminal determines the precoding matrix used for sending the PUSCH this time according to the TPMI index and the number of layers indicated by the second indication information in the first information. For example, assuming that the code point of the second indication field in the first information corresponds to TPMI=0 and the number of layers=1 (for example, it can be determined by looking up Table 1), accordingly, the lookup table 4 can determine that the preset coding matrix used this time is For another example, assuming that the code point of the second indication field in the first information corresponds to TPMI=2 and the number of layers=2, then the lookup table 5 can determine the precoding matrix used when sending the PUSCH in S102 as

[0087] In some embodiments, if the at least one SRS resource configured in the first information is three single-port SRS resources, each single-port SRS resource may correspond one-to-one to an antenna port of the terminal. Further, in S102, the three antenna ports of the terminal respectively use the corresponding single-port SRS resources to send PUSCH.

[0088] In some embodiments, if at least one SRS resource configured in the first information is two 2-port SRS resources, the ports of the first three SRS resources may correspond one-to-one to the three antenna ports of the terminal, and there is no restriction on the antenna port of the terminal corresponding to the port of the fourth SRS resource. For example, in S102, the first of the two 2-port SRS resources may be used by the two antenna ports of the terminal to transmit the PUSCH, and the remaining 2-port SRS resource may be used by the two antenna ports of the terminal to transmit the PUSCH in a time division multiplexing manner.

[0089] In some embodiments, if the at least one SRS resource configured by the first information is a 2-port SRS resource and a 1-port SRS resource, the ports of the three SRS resources may correspond one-to-one to the three antenna ports of the terminal.

[0090] In some embodiments, if the at least one SRS resource configured by the first information is a 4-port SRS resource, the fourth SRS resource port does not send a PUSCH.

[0091] In a specific implementation, in S102, the power scaling factor of the PUSCH is a ratio of the number of non-zero power antenna ports used to transmit the PUSCH to 3.

[0092] In one specific implementation, before, after, or simultaneously with S100, the communication method of this embodiment may further include the following steps: the network device sends third information to the terminal. In response, the terminal receives the third information. The third information is used to indicate that the configuration information in the second information is used for three-antenna port transmission.

[0093] Specifically, before the network sends uplink scheduling information to the terminal, it may preferably configure the terminal to use three antenna ports to send the PUCCH.

[0094] In some embodiments, the terminal may proactively report terminal capabilities. In response to the terminal reporting support for 3-antenna port transmission, the network instructs the SRS resources and codebook configured by the second information to be used for 3-antenna port transmission.

[0095] In some embodiments, the second information may be a newly added parameter in the configuration parameters of the SRS resource set, used to indicate that the SRS resource set is used for 3-antenna port transmission.

[0096] Based on the above, this implementation scheme enhances uplink scheduling information, for example, by carrying the first indication information and / or the second indication information in the first information, and by properly designing the configuration of the channel sounding reference signal (SRS) resources and the codebook (i.e., the precoding matrix) for three-antenna port transmission, so that the scheduling terminal can use three antenna ports to send PUSCH. Furthermore, this implementation scheme can reduce protocol changes and enable the scheduling terminal to use three antenna ports to send PUSCH without enhancing the SRS resources (e.g., without introducing SRS resources for three antenna ports).

[0097] FIG2 is a signaling interaction diagram of a communication method according to a second embodiment of the present application. Here, only the differences between the second embodiment and the first embodiment shown in FIG1 are mainly described.

[0098] Specifically, referring to FIG2 , the main differences between this embodiment and the communication method shown in FIG1 include: in S100 , the second information sent by the network device to the terminal is used to configure multiple candidate SRS resources, wherein at least one SRS resource is selected from the multiple candidate SRS resources.

[0099] In some embodiments, the candidate SRS resources include any one of the following: K1 single-port SRS resources (denoted as SRS resource set 1), K1 is an integer greater than 3; K2 2-port SRS resources (denoted as SRS resource set 2), K2 is an integer greater than 2; K3 2-port SRS resources and K4 single-port SRS resources (denoted as SRS resource set 3), K3 and K4 are both integers greater than 1; K5 4-port SRS resources (denoted as SRS resource set 4), K5 is an integer greater than 1.

[0100] That is to say, compared with the SRS resource set configuration method of three single-port SRS resources, two 2-port SRS resources, one 2-port SRS resource, one single-port SRS resource, and one 4-port SRS resource in the embodiment shown in Figure 1 above, the number of antenna ports of all SRS resources in a single SRS resource set in this embodiment is redundantly configured.

[0101] 2 , the main difference between this embodiment and the communication method shown in FIG1 is that in S101 , the first information includes first indication information and second indication information, wherein the first indication information is used to determine at least one SRS resource from multiple candidate SRS resources.

[0102] In some embodiments, the first indication information may indicate the first SRS resource selected in a candidate SRS resource set. For example, assuming K1=6, that is, SRS resource set 1 includes SRS resources 0 to SRS resources 5, the first indication information may indicate the first SRS resource in SRS resource set 1. Accordingly, the terminal may determine that the SRS resources used in S102 are SRS resources 0 to SRS resources 2. For another example, assuming K3=2, K4=2, that is, SRS resource set 3 may include 2-port SRS resources 0 to SRS resource 1 and single-port SRS resources 2 to SRS resource 3, the first indication information may indicate the second SRS resource in SRS resource set 3. Accordingly, the terminal may determine that the SRS resources used in S102 are 2-port SRS resource 1 and single-port SRS resource 2.

[0103] In some embodiments, the first indication information may indicate all selected SRS resources. For example, assuming K2=3, that is, SRS resource set 2 includes two ports of SRS resources 0 to SRS resources 2, the first indication information may indicate that SRS resources 0 and SRS resources 2 in SRS resource set 2 are used for this PUSCH transmission.

[0104] In a common variation of the embodiments shown in Figures 1 and 2 above, the first information may include only the first indication information, without the second indication information. Specifically, the precoding matrix used by the terminal for three-antenna port transmission may be indicated to the terminal in a predefined or preconfigured manner. Accordingly, in S101, only the first indication field may be used to indicate the terminal the at least one SRS resource to be used when transmitting the PUSCH using three antenna ports.

[0105] FIG3 is a schematic diagram of the structure of a communication device 3 according to the third embodiment of the present application. Those skilled in the art will appreciate that the communication device 3 of this embodiment can be used to implement the methods of the embodiments of FIG1 and FIG2 . The communication device 3 can be the terminal mentioned above.

[0106] Specifically, referring to Figure 3, the communication device 3 may include: a receiving module 31, used to receive first information, the first information includes first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine the precoding matrix; a sending module 32, used to send a physical uplink shared channel using three antenna ports according to the precoding matrix, wherein the three antenna ports are antenna ports used to send at least one channel sounding reference signal resource.

[0107] In a specific implementation, the first information includes second indication information, and the communication device 3 further includes: a first receiving unit, configured to receive the second information, where the second information is used to configure at least one channel sounding reference signal resource.

[0108] In a specific implementation, the communication device 3 further includes: a second receiving unit, configured to receive second information, where the second information is used to configure multiple candidate channel sounding reference signal resources, and at least one channel sounding reference signal resource is selected from the multiple candidate channel sounding reference signal resources.

[0109] In a specific implementation, the first indication information is used to determine at least one channel sounding reference signal resource from a plurality of candidate channel sounding reference signal resources.

[0110] In one specific implementation, the candidate channel sounding reference signal resources include any one of the following: K1 single-port channel sounding reference signal resources, K1 is an integer greater than 3; K2 2-port channel sounding reference signal resources, K2 is an integer greater than 2; K3 2-port channel sounding reference signal resources and K4 single-port channel sounding reference signal resources, K3 and K4 are both integers greater than 1; K5 4-port channel sounding reference signal resources, K5 is an integer greater than 1.

[0111] In a specific implementation, the communication device 3 further includes: a third receiving unit, configured to receive third information, where the third information is used to indicate that the configuration information in the second information is used for 3-antenna port transmission.

[0112] In one specific implementation, at least one channel sounding reference signal resource includes any one of the following: three single-port channel sounding reference signal resources; two 2-port channel sounding reference signal resources; one 2-port channel sounding reference signal resource and one single-port channel sounding reference signal resource; one 4-port channel sounding reference signal resource.

[0113] In one specific implementation, the precoding matrix is ​​selected from a set of candidate precoding matrices, where the set of candidate precoding matrices includes at least one of the following:

[0114] In a specific implementation, the second indication information includes: the number of layers and a transmission precoding matrix indication, and the precoding matrix is ​​jointly determined according to the number of layers and the transmission precoding matrix indication.

[0115] In a specific implementation, the power scaling factor of the physical uplink shared channel is a ratio of the number of non-zero power antenna ports used to transmit the physical uplink shared channel to 3.

[0116] For more details about the working principle and working mode of the communication device 3, please refer to the relevant descriptions in Figures 1 and 2 above, which will not be repeated here.

[0117] In a specific implementation, the above-mentioned communication device 3 can correspond to a chip with communication function in the terminal, or to a chip with data processing function, such as a system-on-a-chip (SOC), a baseband chip, etc.; or to a chip module in the terminal that includes a chip with communication function; or to a chip module with a chip with data processing function, or to a terminal.

[0118] FIG4 is a schematic diagram of the structure of a communication device 4 according to a fourth embodiment of the present application. Those skilled in the art will appreciate that the communication device 4 of this embodiment can be used to implement the methods described in the embodiments of FIG1 and FIG2. The communication device 4 can be the network device described above.

[0119] Specifically, referring to Figure 4, the communication device 4 may include: a sending module 41, used to send first information, the first information includes first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine the precoding matrix; a receiving module 42, used to receive a physical uplink shared channel, wherein the physical uplink shared signal is sent according to the precoding matrix and using three antenna ports, and the three antenna ports are antenna ports used to send at least one channel sounding reference signal resource.

[0120] In a specific implementation, the first information includes second indication information, and the communication device 4 further includes: a first sending unit, configured to send second information, where the second information is used to configure at least one channel sounding reference signal resource.

[0121] In a specific implementation, the communication device 4 further includes: a second sending unit, configured to send second information, where the second information is used to configure multiple candidate channel sounding reference signal resources, and at least one channel sounding reference signal resource is selected from multiple candidate channel sounding reference signal resources.

[0122] In a specific implementation, the first indication information is used to determine at least one channel sounding reference signal resource from a plurality of candidate channel sounding reference signal resources.

[0123] In one specific implementation, the candidate channel sounding reference signal resources include any one of the following: K1 single-port channel sounding reference signal resources, K1 is an integer greater than 3; K2 2-port channel sounding reference signal resources, K2 is an integer greater than 2; K3 2-port channel sounding reference signal resources and K4 single-port channel sounding reference signal resources, K3 and K4 are both integers greater than 1; K5 4-port channel sounding reference signal resources, K5 is an integer greater than 1.

[0124] In a specific implementation, the communication device 4 further includes: a third sending unit, configured to send third information, where the third information is used to indicate that the configuration information in the second information is used for 3-antenna port transmission.

[0125] In one specific implementation, at least one channel sounding reference signal resource includes any one of the following: three single-port channel sounding reference signal resources; two 2-port channel sounding reference signal resources; one 2-port channel sounding reference signal resource and one single-port channel sounding reference signal resource; one 4-port channel sounding reference signal resource.

[0126] In one specific implementation, the precoding matrix is ​​selected from a set of candidate precoding matrices, where the set of candidate precoding matrices includes at least one of the following:

[0127] In a specific implementation, the second indication information includes: the number of layers and a transmission precoding matrix indication, and the precoding matrix is ​​jointly determined according to the number of layers and the transmission precoding matrix indication.

[0128] In a specific implementation, the power scaling factor of the physical uplink shared channel is a ratio of the number of non-zero power antenna ports used to transmit the physical uplink shared channel to 3.

[0129] For more details about the working principle and working mode of the communication device 4, please refer to the relevant descriptions in Figures 1 and 2 above, which will not be repeated here.

[0130] In a specific implementation, the above-mentioned communication device 4 can correspond to a chip with communication function in a network device, or to a chip with data processing function, such as a system-on-a-chip (SOC), a baseband chip, etc.; or to a chip module in a network device that includes a chip with communication function; or to a chip module with a chip with data processing function, or to a network device.

[0131] In specific implementations, the modules / units included in the various devices and products described in the above embodiments may be software modules / units or hardware modules / units, or may be partially software modules / units and partially hardware modules / units.

[0132] For example, for each device or product applied to or integrated into a chip, each module / unit contained therein may be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for each device or product applied to or integrated into a chip module, each module / unit contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The element can be implemented in the form of a software program, which runs on the processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on the processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0133] An embodiment of the present application also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the communication method provided in the embodiments shown in Figures 1 and 2 above are executed.

[0134] In an embodiment of the present application, the storage medium may include a non-volatile memory or a non-transitory memory, and may also include an optical disk, a mechanical hard disk, a solid-state drive, etc.

[0135] FIG5 is a schematic structural diagram of another communication device provided in an embodiment of the present application.

[0136] Specifically, with reference to FIG5 , the communication device may include a processor 51, the processor 51 and a memory 52 coupled, and the memory 52 may be located inside or outside the device. Optionally, a transceiver 53 is further included. The memory 52, the processor 51, and the transceiver 53 may be connected via a communication bus. The memory 52 stores a computer program that can be run on the processor 51. When the processor 51 runs the computer program, the steps of the communication method provided in the embodiments shown in FIG1 and FIG2 are executed. The transceiver 53 may perform the sending and / or receiving actions described above under the control of the processor 51. The communication device may be the network device described above, or it may be a terminal.

[0137] In the embodiment of the present application, the memory 52 includes a non-volatile memory or a non-transitory memory, and may also include an optical disk, a mechanical hard disk, a solid-state hard disk, etc.

[0138] In the embodiment of the present application, the processor 51 may be a central processing unit (CPU), and the processor 51 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0139] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, which may include: ROM, RAM, disk or CD, etc.

[0140] The embodiment description in this application is described with reference to the flow chart and / or block diagram according to the method, equipment (device) and computer program product of embodiment of the present application.It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processor of general-purpose computer, special-purpose computer, embedded processing machine or other programmable data processing equipment to produce a machine, so that the instruction executed by the processor of computer or other programmable data processing equipment produces the device for realizing the function specified in one flow chart flow chart or multiple flow charts and / or one block or multiple blocks of block diagram.

[0141] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0142] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0143] It should also be noted that, in the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b, c can be single or multiple.

[0144] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, commodity, or apparatus comprising the element.

[0145] The present application may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The present application may also be practiced in distributed computing environments where tasks are performed by remote processing devices connected through a communications network. In a distributed computing environment, program modules may be located in local and remote computer storage media, including storage devices.

[0146] The various embodiments in this application are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. In particular, the device embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the partial description of the method embodiments.

[0147] Those skilled in the art will appreciate that the various units and algorithm steps described in the embodiments of the present application can be implemented using a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0148] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices, apparatuses and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0149] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims.

Claims

1. A communication method, characterized in that, Comprising: Receiving first information, the first information including first indication information and / or second indication information, the first indication information being used to determine at least one channel sounding reference signal resource, and the second indication information being used to determine a precoding matrix; Sending a physical uplink shared channel according to the precoding matrix, using 3 antenna ports, wherein the 3 antenna ports are the antenna ports used for sending the at least one channel sounding reference signal resource.

2. The method according to claim 1, wherein The first information includes second indication information, and the method further includes: Receiving second information, the second information being used to configure the at least one channel sounding reference signal resource.

3. The method according to claim 1, wherein Also comprising: Receiving second information, the second information being used to configure a plurality of candidate channel sounding reference signal resources, and the at least one channel sounding reference signal resource being selected from the plurality of candidate channel sounding reference signal resources.

4. The method according to claim 3, characterized in that, The first indication information is used to determine the at least one channel sounding reference signal resource from the plurality of candidate channel sounding reference signal resources.

5. The method according to claim 3 or 4, characterized in that, The candidate channel sounding reference signal resources include any one of the following: K1 single-port channel sounding reference signal resources, where K1 is an integer greater than 3; K2 two-port channel sounding reference signal resources, where K2 is an integer greater than 2; K3 two-port channel sounding reference signal resources and K4 single-port channel sounding reference signal resources, where both K3 and K4 are integers greater than 1; K5 four-port channel sounding reference signal resources, where K5 is an integer greater than 1.

6. The method according to any one of claims 2 to 5, characterized in that Also comprising: Receiving third information, the third information being used to indicate that the configuration information in the second information is for 3-antenna-port transmission.

7. The method according to any one of claims 1 to 6, characterized in that The at least one channel sounding reference signal resource includes any one of the following: three single-port channel sounding reference signal resources; two two-port channel sounding reference signal resources; one two-port channel sounding reference signal resource and one single-port channel sounding reference signal resource; one four-port channel sounding reference signal resource.

8. The method according to any one of claims 1 to 7, characterized in that The precoding matrix is selected from a set of candidate precoding matrices, and the set of candidate precoding matrices includes at least one of the following:

9. The method according to any one of claims 1 to 8, characterized in that, The second indication information includes: the number of layers and a transmit precoding matrix indication, and the precoding matrix is jointly determined according to the number of layers and the transmit precoding matrix indication.

10. The method according to any one of claims 1 to 9, characterized in that, The power scaling factor of the physical uplink shared channel is the ratio of the number of non-zero power antenna ports used for sending the physical uplink shared channel to 3.

11. A communication method, characterized in that, Comprising: Sending first information, the first information including first indication information and / or second indication information, the first indication information being used to determine at least one channel sounding reference signal resource, and the second indication information being used to determine a precoding matrix; Receiving a physical uplink shared channel, wherein the physical uplink shared signal is sent according to the precoding matrix and using 3 antenna ports, and the 3 antenna ports are the antenna ports used for sending the at least one channel sounding reference signal resource.

12. The method according to claim 11, wherein The first information includes second indication information, and the method further includes: Sending second information, the second information being used to configure the at least one channel sounding reference signal resource.

13. The method according to claim 11, characterized in that, Also comprising: Transmit second information, where the second information is used to configure a plurality of candidate channel sounding reference signal resources, and the at least one channel sounding reference signal resource is selected from the plurality of candidate channel sounding reference signal resources.

14. The method according to claim 13, wherein The first indication information is used to determine the at least one channel sounding reference signal resource from the plurality of candidate channel sounding reference signal resources.

15. The method according to claim 13 or 14, characterized in that, The candidate channel sounding reference signal resources include any one of the following: K1 single-port channel sounding reference signal resources, where K1 is an integer greater than 3; K2 two-port channel sounding reference signal resources, where K2 is an integer greater than 2; K3 two-port channel sounding reference signal resources and K4 single-port channel sounding reference signal resources, where both K3 and K4 are integers greater than 1; K5 four-port channel sounding reference signal resources, where K5 is an integer greater than 1.

16. The method according to any one of claims 12 to 15, characterized in that Further includes: Transmit third information, where the third information is used to indicate that the configuration information in the second information is for transmission on three antenna ports.

17. The method according to any one of claims 11 to 16, characterized in that The at least one channel sounding reference signal resource includes any one of the following: three single-port channel sounding reference signal resources; two two-port channel sounding reference signal resources; one two-port channel sounding reference signal resource and one single-port channel sounding reference signal resource; one four-port channel sounding reference signal resource.

18. The method according to any one of claims 11 to 17, characterized in that, The precoding matrix is selected from a set of candidate precoding matrices, and the set of candidate precoding matrices includes at least one of the following:

19. The method according to any one of claims 11 to 18, characterized in that, The second indication information includes: the number of layers and a transmit precoding matrix indication, and the precoding matrix is jointly determined according to the number of layers and the transmit precoding matrix indication.

20. The method according to any one of claims 11 to 19, characterized in that, The power scaling factor of the physical uplink shared channel is the ratio of the number of non-zero power antenna ports used to transmit the physical uplink shared channel to 3.

21. A communication device, characterized in that, Includes: A receiving module, configured to receive first information, where the first information includes first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine a precoding matrix; A transmitting module, configured to transmit a physical uplink shared channel using three antenna ports according to the precoding matrix, where the three antenna ports are the antenna ports used to transmit the at least one channel sounding reference signal resource.

22. A communication device, characterized in that, Includes: A transmitting module, configured to transmit first information, where the first information includes first indication information and / or second indication information, the first indication information is used to determine at least one channel sounding reference signal resource, and the second indication information is used to determine a precoding matrix; A receiving module, configured to receive a physical uplink shared channel, where the physical uplink shared signal is transmitted using three antenna ports according to the precoding matrix, and the three antenna ports are the antenna ports used to transmit the at least one channel sounding reference signal resource.

23. A computer-readable storage medium, the computer-readable storage medium being a non-volatile storage medium or a non-transitory storage medium, having a computer program stored thereon, characterized in that, When the computer program is run by a computer, the steps of the method according to any one of claims 1 to 20 are executed.

24. A communication device, comprising a memory and a processor, wherein a computer program capable of running on the processor is stored on the memory, characterized in that, When the processor runs the computer program, the steps of the method according to any one of claims 1 to 20 are executed.

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