Communication method and device and computer readable storage medium

Abstract

The invention provides a communication method and device and a computer readable storage medium, and relates to the technical field of communication. The method comprises: a network device sending first information to a terminal, correspondingly, the terminal receiving the first information, the first information comprising first indication information and / or second indication information, the first indication information being used for determining at least one channel sounding reference signal resource, and the second indication information being used for determining a precoding matrix; the terminal equipment sends a physical uplink shared channel by adopting three antenna ports according to the precoding matrix, correspondingly, the network equipment receives the physical uplink shared channel, and the three antenna ports are the antenna ports adopted for sending the at least one channel detection reference signal resource. Through the scheme of the invention, the configuration and scheduling terminal can adopt three antenna ports to send the PUSCH.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and particularly to a communication method, an apparatus, and a computer-readable storage medium. Background Art

[0002] From the perspective of product development, in order to improve the uplink transmission performance while minimizing the development difficulty as much as possible, mobile devices with three antenna ports are one of the current popular development directions. Although the protocol supports uplink transmission with a maximum of eight antenna ports, mobile devices in the prior art usually only use one or two uplink antenna ports. The existing protocol cannot support scheduling a terminal to use three antenna ports for uplink transmission.

[0003] Therefore, there is an urgent need to provide an enhanced scheduling mechanism that can design a scheduling terminal to use three antenna ports to send a Physical Uplink Shared Channel (PUSCH for short) to meet the requirements of mobile devices with three antenna ports. Summary of the Invention

[0004] The technical problem solved by this application is how to enable a scheduling terminal to use three antenna ports to send PUSCH.

[0005] To solve the above technical problem, an embodiment of this application provides a communication method, including: receiving 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; and sending 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 send the at least one channel sounding reference signal resource.

[0006] Optionally, the first information includes second indication information, and the method further includes: receiving second information, where the second information is used to configure the at least one channel sounding reference signal resource.

[0007] Optionally, the method further includes: receiving 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.

[0008] Optionally, 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.

[0009] Optionally, the candidate channel sounding reference signal resource includes any one of the following: K1 single-port channel sounding reference signal resources, where K1 is an integer greater than 3; K2 dual-port channel sounding reference signal resources, where K2 is an integer greater than 2; K3 dual-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.

[0010] 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 for transmission on three antenna ports.

[0011] Optionally, the at least one channel sounding reference signal resource includes any one of the following: three single-port channel sounding reference signal resources; two dual-port channel sounding reference signal resources; one dual-port channel sounding reference signal resource and one single-port channel sounding reference signal resource; one four-port channel sounding reference signal resource.

[0012] Optionally, the precoding matrix is selected from a candidate precoding matrix set, and the candidate precoding matrix set includes at least one of the following:

[0013] Optionally, 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.

[0014] Optionally, 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.

[0015] To solve the above technical problems, an embodiment of the present application further provides a communication method, including: sending 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; receiving 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.

[0016] Optionally, the first information includes second indication information, and the method further includes: sending second information, where the second information is used to configure the at least one channel sounding reference signal resource.

[0017] Optionally, the method further includes: sending second information for configuring a plurality of candidate channel sounding reference signal resources, and selecting the at least one channel sounding reference signal resource from the plurality of candidate channel sounding reference signal resources.

[0018] Optionally, 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.

[0019] Optionally, 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.

[0020] Optionally, the method further includes: sending third information for indicating that the configuration information in the second information is for transmission on three antenna ports.

[0021] Optionally, 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.

[0022] Optionally, 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:

[0023] Optionally, 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.

[0024] Optionally, the power scaling factor of the physical uplink shared channel is the ratio of the number of non-zero power antenna ports for transmitting the physical uplink shared channel to 3.

[0025] To solve the above technical problems, an embodiment of the present application further provides a communication device, including: 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 3 antenna ports according to the precoding matrix, where the 3 antenna ports are the antenna ports used to transmit the at least one channel sounding reference signal resource.

[0026] To solve the above technical problems, an embodiment of the present application further provides a communication device, including: 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 3 antenna ports according to the precoding matrix, and the 3 antenna ports are the antenna ports used to transmit the at least one channel sounding reference signal resource.

[0027] To solve the above technical problems, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored thereon. When the computer program is run by a computer, the steps of the above method are executed.

[0028] To solve the above technical problems, an embodiment of the present application further provides a communication device, including a memory and a processor. A computer program is stored on the memory and can run on the processor. When the processor runs the computer program, the steps of the above method are executed.

[0029] To solve the above technical problems, an embodiment of the present application further provides a computer program product, where the computer program product includes a computer program. When the computer program runs on a computer, the computer is caused to execute the steps of the above method.

[0030] To solve the above technical problems, an embodiment of the present application further provides a communication system, including a network device and a terminal for executing the above method.

[0031] To solve the above technical problems, an embodiment of the present application further provides a chip (or a communication device). A computer program is stored on the chip. When the computer program is executed by the chip, the steps of the above method are implemented.

[0032] Compared with the prior art, the technical solution of the embodiment of the present application has the following beneficial effects:

[0033] This implementation provides a communication method, including: a network device sends first information to a terminal, correspondingly, 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 sends a physical uplink shared channel using 3 antenna ports according to the precoding matrix, correspondingly, the network device receives the physical uplink shared channel, where the 3 antenna ports are the antenna ports used for sending the at least one channel sounding reference signal resource.

[0034] Compared with the prior art that cannot support the uplink scheduling of 3-antenna terminals, this implementation realizes scheduling the terminal to send PUSCH using 3 antenna ports by enhancing the uplink scheduling information, for example, carrying the first indication information and / or the second indication information in the first information, and reasonably designing the configuration of the channel sounding reference signal (Sounding Reference Signal, abbreviated as SRS) resource and the codebook (i.e., the precoding matrix) for 3-antenna port transmission.

[0035] Furthermore, by adopting this implementation, the modification to the protocol can be reduced, and scheduling the terminal to send PUSCH using 3 antenna ports can be realized without enhancing the SRS resource (for example, without introducing the SRS resource of 3 antenna ports). Description of the Drawings

[0036] Figure 1 is a signaling interaction diagram of a communication method according to the first embodiment of the present application;

[0037] Figure 2 is a signaling interaction diagram of a communication method according to the second embodiment of the present application;

[0038] Figure 3 is a schematic structural diagram of a communication device according to the third embodiment of the present application;

[0039] Figure 4 is a schematic structural diagram of a communication device according to the fourth embodiment of the present application;

[0040] Figure 5 is a schematic structural diagram of another communication device provided by the embodiment of the present application. Detailed Implementation Manner

[0041] The method provided by the embodiment of the present application relates to a network device and a terminal, and the network device and the terminal can transmit uplink and downlink signals.

[0042] The terminal in the embodiments of this application is a device with wireless communication capabilities, which can be referred to as User Equipment (UE), terminal device, mobile station (MS), mobile terminal (MT), access terminal device, in-vehicle terminal device, industrial control terminal device, UE unit, UE station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, 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), new radio (NR), etc. For example, the terminal can be a mobile phone, tablet (pad), desktop computer, laptop computer, all-in-one computer, in-vehicle terminal, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device, or other processing devices connected to a wireless modem, wearable device, terminal device in a future mobile communication network, or terminal device in a future evolved Public Land Mobile Network (PLMN), etc. In some embodiments of this application, the terminal can also be a device with transceiver capabilities, such as a chip system. Among them, the chip system can include a chip and can also include other discrete devices.

[0043] In the embodiments of the present application, the network device is a device that provides wireless communication functions for terminals, and can also be referred to as an access network device, a radio access network (RAN) device, or an access network network element, etc. Among them, the network device can support at least one wireless communication technology, such as LTE, NR, etc. For example, the network device includes but is not limited to: the next-generation base station (generation nodeB, gNB), evolved node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, etc. in the 5th-generation (5G) mobile communication system. The network device can also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in the cloud radio access network (CRAN) scenario, or the access network device can be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and a network device in future mobile communications or a network device in a future evolved PLMN, etc. In some embodiments, the network device can also be a device with the function of providing wireless communication for terminals, such as a chip system. For example, the chip system can include a chip and can also include other discrete devices.

[0044] As described in the background art, from the perspective of product development, in order to improve the uplink transmission performance while minimizing the development difficulty as much as possible, it is considered to design a mobile device with 3 antenna ports. Accordingly, the New Radio (NR, also known as New Wireless) protocol needs to design to schedule the terminal to send PUSCH using 3 antenna ports. To more clearly illustrate the solution of the present application, the uplink scheduling process of the existing NR protocol will be briefly introduced next.

[0045] Specifically, before scheduling the terminal to transmit the PUSCH, the base station first needs to measure the SRS transmitted by the terminal and determine the precoding used for the terminal to transmit the PUSCH. Among them, the number of antenna ports of the SRS supports 1, 2, 4, and 8. The way the base station schedules the terminal is to send uplink scheduling information to the terminal, and the uplink scheduling information can be a high-layer configured grant signaling or a physical-layer downlink control information (Downlink Control Information, abbreviated as DCI).

[0046] Furthermore, the uplink scheduling information includes an SRS resource indication field, a precoding information and number of layers (Precoding information and number of layers) indication field. Among them, the SRS resource indication field is used to indicate an SRS resource, and the number of antenna ports of 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 of 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.

[0047] Table 1 is one of the tables corresponding to the precoding information and number of layers indication field in 3GPP TS38.212 protocol. As shown in Table 1, for a terminal supporting coherent codebook transmission with 2 ports, when the value indicated by this field is 2, it means that the number of layers of PUSCH transmission is 1, and TPMI = 2.

[0048] Table 1

[0049]

[0050] According to the protocol, the precoding table corresponding to 1 layer is shown in Table 2. By looking up the table, it can be seen that the precoding matrix corresponding to TPMI = 2 is

[0051] Table 2

[0052]

[0053] In addition, when the user sends the PUSCH, power scaling is required. Among them, the power scaling factor is equal to the ratio of the number of non-zero antenna ports used to transmit the PUSCH to the maximum number of ports of the supported SRS resource. The maximum number of ports of the SRS resource supported by the user reflects the maximum number of antenna ports used.

[0054] Although the protocol supports uplink transmission with up to 8 antenna ports, mobile devices in the prior art typically use only 1 or 2 uplink antenna ports. In order to meet terminals with 3 antenna ports while minimizing protocol changes, the problem to be solved is how to schedule a terminal to transmit PUSCH using 3 antenna ports without enhancing the SRS resources (i.e., without introducing SRS resources for 3 ports).

[0055] To solve the above technical problem, this embodiment provides a communication method, including: the network device sends first information to the terminal, and correspondingly, 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 transmits a physical uplink shared channel using 3 antenna ports according to the precoding matrix, and correspondingly, the network device receives the physical uplink shared channel, where the 3 antenna ports are the antenna ports used to transmit the at least one channel sounding reference signal resource.

[0056] This embodiment realizes scheduling a terminal to transmit PUSCH using 3 antenna ports by enhancing the uplink scheduling information, for example, 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., the precoding matrix) for 3-antenna-port transmission.

[0057] To make the above objects, features, and beneficial effects of the present application more obvious and understandable, the following detailed description of the specific embodiments of the present application will be given with reference to the accompanying drawings.

[0058] Figure 1 It is a signaling interaction diagram of a communication method according to the first embodiment of the present application.

[0059] This embodiment can be applied to the uplink scheduling scenario, in which the terminal has the ability to perform uplink transmission using 3 antenna ports. Further, the scheduled terminal executing this embodiment is preferably a mobile device.

[0060] In a specific implementation, in the communication method provided by the following steps (abbreviated as S) 101 to S102, the actions performed by the terminal can be executed 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 executed by a chip with communication functions in the network device or by a baseband chip in the network device.

[0061] Specifically, referring to Figure 1 , the communication method described in this embodiment may include the following steps:

[0062] S101, the network device sends the first information to the 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 ( Figure 1 Exemplary display is made taking the first information including the second indication information as an example). Among them, the first indication information is used to determine at least one SRS resource, and the second indication information is used to determine the precoding matrix.

[0063] Furthermore, the first information may also be referred to as uplink scheduling information and is used to schedule the terminal to send PUSCH.

[0064] In some embodiments, the first information may include a first indication field of x bits for carrying the first indication information. Wherein, x≥0 and is an integer. The first indication field may correspond to the SRS resource indication field (SRS indicator, SRI).

[0065] In some embodiments, the first information may include a second indication field of y bits for carrying the second indication information. Wherein, y is a positive integer. The second indication information may include the number of layers and the transmission precoding matrix indication, and the precoding matrix is jointly determined according to the number of layers and the transmission precoding matrix indication. The number of layers specifically refers to the number of layers of the precoding matrix. In other words, the second indication field may correspond to the precoding information and the number of layers indication field.

[0066] In a specific implementation, the first information may be carried by a high-layer configuration grant signaling, such as carried by RRC. Alternatively, the first information may be carried by DCI of the physical layer.

[0067] In a specific implementation, the first information may not include the first indication information, but only include the second indication information, as Figure 1 shown. In other words, the first indication field may be 0 bits.

[0068] Furthermore, before executing S101, the communication method described in this embodiment may further include S100, where the network device sends second information to the terminal. Correspondingly, the terminal receives the second information. Among them, 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 the SRS resource set configured by the network device for codebook transmission measurement, and the SRS resource set includes at least one SRS resource.

[0069] In some embodiments, 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; one 4-port SRS resource.

[0070] Specifically, in S100, the network device configures a combination of one of the above four possibilities for the terminal through the second information, and there is basically no redundancy in the antenna ports of the configured SRS resource (combination).

[0071] Furthermore, different from the existing SRI which must have 2 bits to indicate one of the multiple configured SRS resources, in the first information of this specific implementation, the first indication field (i.e., the SRI field) can be 0 bits because all of the at least one configured SRS resource is to be used for transmitting PUSCH. Thus, in this specific implementation, the first information only indicates the precoding matrix through the precoding information and the layer indication field.

[0072] In a specific implementation, continuing to refer to Figure 1 , the communication method described in this implementation scheme may further include S102, where the terminal transmits PUSCH using 3 antenna ports according to the precoding matrix. Correspondingly, the network device receives the PUSCH. Among them, the 3 antenna ports are the antenna ports used for transmitting at least one SRS resource.

[0073] Specifically, the 3 antenna ports may be non - coherent.

[0074] Furthermore, the precoding matrix may be selected from a candidate precoding matrix set, and the candidate precoding matrix set includes at least one of the following: Thus, the precoding matrix for 3 ports is determined through the second indication information, and then the PUSCH is transmitted using this precoding matrix.

[0075] For example, in a predefined or pre - configured manner, the candidate precoding matrix set may be defined as shown in Table 3 below:

[0076] Table 3

[0077]

[0078] In Table 3, the candidate precoding matrices for different numbers of layers are integrated into one table for configuration.

[0079] In response to receiving the first information, the terminal determines the precoding matrix used for this transmission of PUSCH according to the TPMI index indicated by the second indication information in the first information. For example, assume that the code point of the second indication field in the first information is 000, corresponding to the TPMI index 0. Correspondingly, the preset coding matrix used this time is For another example, assume that the code point of the second indication field in the first information is 100, corresponding to the TPMI index 4. Correspondingly, the precoding matrix used when transmitting PUSCH in S102 is

[0080] In a variant, candidate precoding matrices with the same number of layers can be integrated into one table, and candidate precoding matrices with different numbers of layers are defined in different tables. Further, all the defined tables are pre-indicated to the terminal in a pre-configured or pre-defined manner.

[0081] For example, Tables 4 to 6 can be pre-defined as follows:

[0082] Table 4

[0083]

[0084] Table 4 corresponds to the candidate precoding matrix when the number of layers is 1.

[0085] Table 5

[0086]

[0087] Table 5 corresponds to the candidate precoding matrix when the number of layers is 2.

[0088] Table 6

[0089]

[0090] Table 6 corresponds to the candidate precoding matrix when the number of layers is 3.

[0091] In response to receiving the first information, the terminal determines the precoding matrix used for this PUSCH transmission according to the TPMI index and the number of layers indicated by the second indication information in the first information. For example, assume 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). Correspondingly, by looking up Table 4, it can be determined that the preset coding matrix used this time is For another example, assume that the code point of the second indication field in the first information corresponds to TPMI = 2 and the number of layers = 2. Correspondingly, by looking up Table 5, it can be determined that the precoding matrix used for transmitting PUSCH in S102 is

[0092] In some embodiments, if at least one SRS resource configured in the first information is three single-port SRS resources, each single-port SRS resource can correspond one-to-one with the antenna ports of the terminal. Further, in S102, the 3 antenna ports of the terminal respectively use the corresponding single-port SRS resources to transmit PUSCH.

[0093] 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 can correspond one-to-one with 3 antenna ports of the terminal, and the antenna port of the terminal corresponding to the port of the fourth SRS resource is not restricted. For example, in S102, the first of the two 2-port SRS resources can be used by 2 antenna ports of the terminal to transmit PUSCH, and the remaining 2-port SRS resource can use 2 antenna ports of the terminal to transmit PUSCH in a time division multiplexing manner.

[0094] In some embodiments, if at least one SRS resource configured in the first information is a 2-port SRS resource and a single-port SRS resource, the ports of the three SRS resources can correspond one-to-one with 3 antenna ports of the terminal.

[0095] In some embodiments, if at least one SRS resource configured in the first information is a 4-port SRS resource, the fourth SRS resource port does not transmit PUSCH.

[0096] In a specific implementation, in S102, the power scaling factor of PUSCH is the ratio of the number of non-zero power antenna ports used to transmit PUSCH to 3.

[0097] In a specific implementation, before / after / simultaneously with S100, the communication method described in this embodiment may further include the step of: the network device sending third information to the terminal. Correspondingly, the terminal receives the third information. The third information is used to indicate that the configuration information in the second information is used for 3-antenna port transmission.

[0098] Specifically, before the network sends uplink scheduling information to the terminal, it can preferably configure the terminal to use 3 antenna ports to transmit PUCCH.

[0099] In some embodiments, the terminal can actively report the terminal capabilities. In response to the terminal reporting support for 3-antenna port transmission, the network instructs that the SRS resources and codebooks configured in the second information are used for 3-antenna port transmission.

[0100] In some embodiments, the second information can add a parameter in the configuration parameters of the SRS resource set to indicate that the SRS resource set is used for 3-antenna port transmission.

[0101] As described above, by adopting this implementation solution, through the enhancement of uplink scheduling information, for example, carrying the first indication information and / or the second indication information in the first information, and by reasonably designing the configuration of channel sounding reference signals (Sounding Reference Signal, abbreviated as SRS) resources and the codebook (i.e., precoding matrix) for transmission on three antenna ports, it is realized that the scheduled terminal transmits PUSCH using three antenna ports. Further, by adopting this implementation solution, the modification to the protocol can be reduced, and on the basis of not enhancing the SRS resources (for example, not introducing SRS resources with three antenna ports), it is realized that the scheduled terminal transmits PUSCH using three antenna ports.

[0102] Figure 2 It is a signaling interaction diagram of a communication method according to the second embodiment of this application. Here, only the differences between the second embodiment and the above Figure 1 shown first embodiment are mainly described.

[0103] Specifically, referring to Figure 2 , the main differences between this implementation solution and the above Figure 1 shown communication method include: In S100, the second information sent by the network device to the terminal is used to configure multiple candidate SRS resources. Among them, the at least one SRS resource is selected from the multiple candidate SRS resources.

[0104] In some embodiments, the candidate SRS resources include any one of the following: K1 single-port SRS resources (denoted as SRS resource set 1), where K1 is an integer greater than 3; K2 two-port SRS resources (denoted as SRS resource set 2), where K2 is an integer greater than 2; K3 two-port SRS resources and K4 single-port SRS resources (denoted as SRS resource set 3), where both K3 and K4 are integers greater than 1; K5 four-port SRS resources (denoted as SRS resource set 4), where K5 is an integer greater than 1.

[0105] That is to say, compared with the SRS resource set configuration methods of three single-port SRS resources, two two-port SRS resources, one two-port SRS resource and one single-port SRS resource, and one four-port SRS resource in the above Figure 1 shown embodiments, the number of antenna ports of all SRS resources in a single SRS resource set in this embodiment is redundantly configured.

[0106] Further, continuing to refer to Figure 2 , the main differences between this implementation solution and the above Figure 1 shown communication method also include: In S101, the first information includes the first indication information and the second indication information. Among them, the first indication information is used to determine the at least one SRS resource from the multiple candidate SRS resources.

[0107] In some embodiments, the first indication information may indicate the first selected SRS resource in a candidate SRS resource set. For example, assume K1 = 6, that is, SRS resource set 1 includes SRS resources 0 to 5. The first indication information may indicate the first SRS resource in SRS resource set 1. Correspondingly, the terminal may determine that the SRS resources used in S102 are SRS resources 0 to 2. As another example, assume K3 = 2 and K4 = 2, that is, SRS resource set 3 may include 2-port SRS resources 0 to 1 and single-port SRS resources 2 to 3. The first indication information may indicate the second SRS resource in SRS resource set 3. Correspondingly, the terminal may determine that the SRS resources used in S102 are 2-port SRS resource 1 and single-port SRS resource 2.

[0108] In some embodiments, the first indication information may indicate all the selected SRS resources. For example, assume K2 = 3, that is, SRS resource set 2 includes 2-port SRS resources 0 to 2. The first indication information may indicate that SRS resources 0 and 2 in SRS resource set 2 are used for this PUSCH transmission.

[0109] In the above Figure 1 and Figure 2 In a common variation of the above-described embodiments, the first information may include only the first indication information and not include the second indication information. Specifically, the precoding matrix used by the terminal for 3-antenna port transmission may be indicated to the terminal in a predefined or preconfigured manner. Correspondingly, in S101, at least one SRS resource used by the terminal for PUSCH transmission with 3 antenna ports may be indicated only through the first indication field.

[0110] Figure 3 FIG. is a schematic structural diagram of a communication device 3 according to the third embodiment of the present application. Those skilled in the art understand that the communication device 3 in this embodiment may be used to implement the methods described in the above Figure 1 and Figure 2 described embodiments. The communication device 3 may be the terminal in the above text.

[0111] Specifically, referring to Figure 3, the communication device 3 may include: a receiving module 31, 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 32, configured to transmit a physical uplink shared channel using 3 antenna ports according to the precoding matrix, where the 3 antenna ports are the antenna ports used for transmitting the at least one channel sounding reference signal resource.

[0112] 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 second information, where the second information is used to configure the at least one channel sounding reference signal resource.

[0113] 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 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.

[0114] In a specific implementation, 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.

[0115] In a specific implementation, 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.

[0116] 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 for 3-antenna-port transmission.

[0117] In a specific implementation, 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.

[0118] In a specific implementation, 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:

[0119] 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.

[0120] In a specific implementation, 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.

[0121] For more content regarding the working principle and working mode of the communication device 3, reference may be made to the relevant descriptions in the above Figure 1 and Figure 2 and will not be elaborated here.

[0122] In a specific implementation, the above-mentioned communication device 3 may correspond to a chip with communication functions in a terminal, or correspond to a chip with data processing functions, such as a System-On-a-Chip (SOC for short), a baseband chip, etc.; or correspond to a chip module including a chip with communication functions in a terminal; or correspond to a chip module with a chip having data processing functions, or correspond to a terminal.

[0123] Figure 4 FIG. is a schematic structural diagram of a communication device 4 according to the fourth embodiment of the present application. Those skilled in the art understand that the communication device 4 in this embodiment can be used to implement the above Figure 1 and Figure 2 methods described in the embodiments. The communication device 4 may be the network device in the above text.

[0124] Specifically, referring to Figure 4 , the communication device 4 may include: a sending module 41, configured to send 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 42, configured to receive a physical uplink shared channel, where the physical uplink shared signal is sent using 3 antenna ports according to the precoding matrix, and the 3 antenna ports are the antenna ports used to send the at least one channel sounding reference signal resource.

[0125] 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 the at least one channel sounding reference signal resource.

[0126] 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 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.

[0127] In a specific implementation, 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.

[0128] In a specific implementation, 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.

[0129] 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 for transmission on three antenna ports.

[0130] In a specific implementation, 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.

[0131] In a specific implementation, 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:

[0132] In a specific implementation, the second indication information includes: the number of layers and a transmit precoding matrix indicator, and the precoding matrix is jointly determined according to the number of layers and the transmit precoding matrix indicator.

[0133] In a specific implementation, the power scaling factor of the physical uplink shared channel is the ratio of the number of non-zero power antenna ports used to send the physical uplink shared channel to 3.

[0134] For more content regarding the working principle and working mode of the communication device 4, reference may be made to the relevant descriptions in the above Figure 1 and Figure 2 and will not be elaborated here.

[0135] In a specific implementation, the above-mentioned communication device 4 may correspond to a chip with communication functions in a network device, or correspond to a chip with data processing functions, such as a System-On-a-Chip (SOC for short), a baseband chip, etc.; or correspond to a chip module including a chip with communication functions in a network device; or correspond to a chip module with a chip having data processing functions, or correspond to a network device.

[0136] In a specific implementation, for each device and product described in the above embodiments, each module / unit included therein may be a software module / unit, a hardware module / unit, or may be partially a software module / unit and partially a hardware module / unit.

[0137] For example, for each device and product applied to or integrated into a chip, each module / unit included therein may be implemented in a hardware manner such as a circuit, or at least some of the modules / units may be implemented in a software program manner, and the software program runs on a processor integrated inside the chip, and the remaining (if any) part of the modules / units may be implemented in a hardware manner such as a circuit; for each device and product applied to or integrated into a chip module, each module / unit included therein may be implemented in a hardware manner such as a circuit, and different modules / units may be located in the same component (such as a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in a software program manner, and the software program runs on a processor integrated inside the chip module, and the remaining (if any) part of the modules / units may be implemented in a hardware manner such as a circuit; for each device and product applied to or integrated into a terminal, each module / unit included therein may be implemented in a hardware manner such as a circuit, and different modules / units may be located in the same component (such as a chip, a circuit module, etc.) or different components inside the terminal, or at least some of the modules / units may be implemented in a software program manner, and the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules / units may be implemented in a hardware manner such as a circuit.

[0138] The embodiment of the present application also provides a computer-readable storage medium, and the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, and when the computer program is run by a processor, the steps of the communication method provided by the above Figure 1 and Figure 2 shown embodiments are executed.

[0139] In the embodiments of the present application, the storage medium may include non-volatile memory or non-transitory memory, and may also include optical discs, mechanical hard disks, solid state drives, etc.

[0140] Figure 5 It is a schematic structural diagram of another communication device provided by the embodiments of the present application.

[0141] Specifically, referring to Figure 5 , the communication device may include a processor 51, the processor 51 is coupled to a memory 52, 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 through a communication bus. A computer program that can run on the processor 51 is stored on the memory 52. When the processor 51 runs the computer program, it executes the steps in the communication method provided by the above Figure 1 and Figure 2 shown embodiments. The transceiver 53 may perform the sending and / or receiving actions described above under the control of the processor 51. This communication device may be the network device described above or a terminal.

[0142] In the embodiments of the present application, the memory 52 includes non-volatile memory or non-transitory memory, and may also include optical discs, mechanical hard disks, solid state drives, etc.

[0143] In the embodiments 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 (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0144] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by a program instructing relevant hardware. The program may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic disks, or optical discs, etc.

[0145] The embodiments described in this application are described with reference to the flowcharts and / or block diagrams of methods, apparatuses (devices), and computer program products according to the embodiments of this application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 or the functions specified in multiple blocks.

[0146] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 or the functions specified in multiple blocks.

[0147] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Therefore, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 or the functions specified in multiple blocks.

[0148] It should also be noted that in the embodiments of this application, "at least one" means one or more, and "multiple" means two or more. " / ", which describes the association relationship of associated objects, indicates that there can be three relationships. For example, A and / or B can indicate the cases of A existing alone, A and B existing simultaneously, and B existing alone. Where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" and its similar expressions refer to any combination of these items, including any combination of single items 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, and c can be single or multiple.

[0149] In the embodiments of the present application, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, commodity or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of additional identical elements in the process, method, commodity or device comprising said element.

[0150] 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 a distributed computing environment where tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules may be located in local and remote computer storage media including storage devices.

[0151] The various embodiments in the present application are described in a progressive manner. For the same or similar parts among the various embodiments, reference may be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for the relevant parts, reference may be made to the corresponding descriptions in the method embodiments.

[0152] Those of ordinary skill in the art can realize that the various units and algorithm steps described in the embodiments of the present application can be implemented by a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professionals can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0153] Those skilled in the art can 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 foregoing method embodiments and will not be elaborated herein.

[0154] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be subject to the scope defined by the claims.

Claims

1. A communication method, characterized in that, Comprising: Receiving 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; Sending a physical uplink shared channel according to the precoding matrix, where the three antenna ports are the antenna ports used to send the at least one channel sounding reference signal resource.

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

3. The method according to claim 1, characterized in that Further comprising: Receiving 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.

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, Further comprising: Receiving third information, where the third information is 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 to send the physical uplink shared channel to 3.

11. A communication method, characterized in that, Comprising: Sending 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; Receiving a physical uplink shared channel, where the physical uplink shared signal is sent according to the precoding matrix and using three antenna ports, and the three antenna ports are the antenna ports used to send 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, where the second information is used to configure the at least one channel sounding reference signal resource.

13. The method according to claim 11, characterized in that, Further comprising: Sending 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, 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.

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 comprising: Sending third information, where the third information is used to indicate that the configuration information in the second information is for transmission on 3 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 transmission precoding matrix indication, and the precoding matrix is jointly determined according to the number of layers and the transmission 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 send the physical uplink shared channel to 3.

21. A communication device, characterized in that, Comprising: 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 sending module, configured to send a physical uplink shared channel using 3 antenna ports according to the precoding matrix, where the 3 antenna ports are the antenna ports used to send the at least one channel sounding reference signal resource.

22. A communication device, characterized in that, Comprising: A sending module, configured to send 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 sent using 3 antenna ports according to the precoding matrix, and the 3 antenna ports are the antenna ports used to send 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, where a computer program that can run 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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