Sounding reference signal resource configuration method and apparatus, storage medium, and program product

Abstract

Embodiments of the present disclosure relate to the technical field of communications, and provide a sounding reference signal (SRS) resource configuration method and apparatus, a storage medium, and a program product, which can solve the problem of how to configure a corresponding SRS resource for a terminal having three antenna ports. The method comprises: receiving SRS resource configuration signaling, the SRS resource configuration signaling being used for configuring at least one SRS resource; and, on the basis of the SRS resource configuration signaling, sending an SRS on the SRS resource.

Description

Sounding reference signal resource configuration method and device, storage medium and program product

[0001] The present disclosure claims priority to Chinese Patent Application No. 202411050952.4, filed on July 31, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of communication, and particularly relates to a sounding reference signal resource configuration method and device, a storage medium and a program product. BACKGROUND

[0003] At present, the number of antennas configured for most terminals is 1 antenna, 2 antennas or 4 antennas. However, some terminals can perform uplink transmission through 3 antenna ports. However, for such terminals, how to configure sounding reference signal (SRS) resources for the terminals is a technical problem to be solved at present. SUMMARY

[0004] Embodiments of the present disclosure provide a sounding reference signal resource configuration method, device, storage medium and program product, which can solve the problem of how to configure corresponding SRS resources for terminals with three antenna ports.

[0005] In one aspect, a sounding reference signal resource configuration method is provided, comprising: receiving sounding reference signal (SRS) resource configuration signaling, wherein the SRS resource configuration signaling is used to configure at least one SRS resource;

[0006] According to the SRS resource configuration signaling, an SRS is transmitted on an SRS resource in the at least one SRS resource.

[0007] In another aspect, a sounding reference signal resource configuration method is provided, comprising: transmitting SRS resource configuration signaling, wherein the SRS resource configuration signaling is used to configure at least one SRS resource.

[0008] In still another aspect, a sounding reference signal resource configuration device is provided, comprising: a receiving unit and a transmitting unit; the receiving unit is configured to receive sounding reference signal (SRS) resource configuration signaling, wherein the SRS resource configuration signaling is used to configure at least one SRS resource; and the transmitting unit is configured to transmit an SRS on an SRS resource in the at least one SRS resource according to the SRS resource configuration signaling.

[0009] In still another aspect, a sounding reference signal resource configuration device is provided, comprising: a transmitting unit; and the transmitting unit is configured to transmit SRS resource configuration signaling, wherein the SRS resource configuration signaling is used to configure at least one SRS resource.

[0010] In another aspect, a communication node is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is configured to store a computer program; the processor is configured to implement the SRS resource configuration method according to any one of the above embodiments when executing the computer program.

[0011] In another aspect, a computer readable storage medium is provided, and the computer readable storage medium stores computer program instructions, and the computer program instructions are configured to implement the SRS resource configuration method according to any one of the above embodiments when executed by a processor.

[0012] In another aspect, a computer program product is provided, and the computer program product comprises computer program instructions, and the computer program instructions are configured to implement the SRS resource configuration method according to any one of the above embodiments when executed by a processor.

[0013] The embodiments of the present disclosure disclose that the first node can receive SRS resource configuration signaling, and the SRS resource configuration signaling is used for configuring at least one SRS resource. In this way, in the case that the first node supports three transmitting antenna ports, the second node can configure the above-mentioned SRS resource for the first node based on the SRS resource configuration signaling, so that the problem of how to configure the SRS resource suitable for the terminal with three transmitting antenna ports can be solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings needed to be used in some embodiments of the present disclosure will be briefly introduced as follows. Obviously, the drawings in the following description are only some drawings of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0015] FIG. 1 is a communication system architecture diagram provided by some embodiments of the present disclosure;

[0016] FIG. 2 is a flow diagram of a SRS resource configuration method provided by some embodiments of the present disclosure;

[0017] FIG. 3 is a flow diagram of a SRS resource configuration method provided by some embodiments of the present disclosure;

[0018] FIG. 4 is a structural diagram of a communication device provided by some embodiments of the present disclosure;

[0019] FIG. 5 is a structural diagram of a communication device provided by some embodiments of the present disclosure;

[0020] FIG. 6 is a structural diagram of a communication device provided by some embodiments of the present disclosure. DETAILED DESCRIPTION

[0021] The technical solutions in the present disclosure will be described clearly and completely in the present disclosure in combination with the drawings in the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0022] It should be noted that in the present disclosure, the words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design solution described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or having more advantages than other embodiments or design solutions. Rather, the words "exemplary" or "for example" are used to present related concepts in a specific manner.

[0023] Hereinafter, the terms "first" and "second" are used only for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.

[0024] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this document is only a description of the association between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, "at least one" means one or more, and "multiple" means two or more.

[0025] SRS is a sounding reference signal configured for measuring an uplink channel in wireless communication. A terminal can transmit SRS to a base station through a transmitting antenna (or a transmitting antenna port). After receiving the SRS, the base station can measure and estimate the uplink channel between the base station and the terminal based on the SRS, thereby obtaining channel information of the uplink channel. In a frequency division duplex system, SRS can only measure uplink channel information. However, in a time division duplex system, since the uplink and downlink channels have reciprocity, a base station in a new radio (NR) system can determine downlink channel information through uplink channel information, and SRS can also be used to determine downlink channel information.

[0026] SRS resource is a time-frequency resource, periodicity, and various resources configured by a base station for a terminal to transmit SRS. The base station can configure multiple SRS resources for a terminal through an SRS resource set. In addition, when configuring the SRS resource set, the base station can configure different purposes for the SRS set.

[0027] For example, the usage of the SRS resource set can be configured as antennaSwitching (also referred to as antenna switching). Since the number of transmit antenna ports of the terminal and the number of receive antenna ports of the terminal can be inconsistent (for example, the number of transmit antenna ports is less than the number of receive antenna ports), the transceiving capability of the terminal is different. Therefore, in order to determine the channel information between each antenna port of the terminal and the base station, the terminal can use different antenna ports to transmit SRSs multiple times based on the SRS resources in the SRS resource set whose usage is antennaSwitching. Correspondingly, the base station can receive multiple SRSs transmitted by different antenna ports of the terminal, so as to determine the channel information between the base station and each antenna port of the terminal.

[0028] For another example, when the SRS resource set is configured as codebook, the terminal transmits SRSs through the SRS resources in the SRS resource set, and the base station can determine the channel information based on the received SRSs, so as to select the most suitable precoding codebook for the terminal. Then, the base station can indicate the terminal to use the precoding codebook selected by the base station for uplink transmission through the transmit precoding matrix indicator (TPMI) in the downlink control information (DCI).

[0029] In addition, one SRS resource in the related art can support (or be associated with) one, two or four antenna ports, so that the terminal can transmit SRSs through the SRS resource based on the antenna ports supported by the SRS resource.

[0030] The terminal can receive and transmit signals through antennas (also referred to as antenna ports). Generally, the terminal is configured with 1 antenna, 2 antennas or 4 antennas. The transmit antenna ports and the receive antenna ports of the terminal can satisfy xTyR. Wherein, xT refers to x transmit antennas (ports), yR refers to y receive antennas (ports), and x and y are positive integers. Generally, the terminal is configured with 1T2R, 1T4R or 2T4R. For example, for 2T4R, the terminal is configured with 4 antennas, and when transmitting signals, the terminal can transmit through two of the four antennas.

[0031] However, considering the factors such as hardware and cost, the terminal generally will not be configured with too many transmit antennas. Therefore, in terms of uplink performance, cost and hardware limitations, it is a feasible solution for the terminal to perform uplink transmission through three antenna ports. However, for such a terminal, how the base station configures the corresponding SRS resource for the terminal with three antenna ports is a technical problem to be solved at present.

[0032] To this end, the embodiment of the present disclosure provides a sounding reference signal resource configuration method. A first node can receive SRS resource configuration signaling, which is used to configure at least one SRS resource. In this way, in the case that the first node supports three transmit antenna ports, the second node can configure the above-mentioned SRS resource for the first node based on the SRS resource configuration signaling, thereby solving the problem of how to configure the SRS resource suitable for the terminal with three transmit antenna ports.

[0033] The sounding reference signal resource configuration method provided by the embodiment of the present disclosure can be applied to systems of various communication modes. For example, the sounding reference signal resource configuration provided by the embodiment of the present disclosure can be applied to systems including but not limited to a long term evolution (LTE) system, various versions based on LTE evolution, a 5th generation mobile communication technology (5G) system, and the like. In addition, the sounding reference signal resource configuration method provided by the embodiment of the present disclosure can also be applied to future-oriented communication systems (for example, a 6G communication system) and the like.

[0034] For example, the above-mentioned sounding reference signal resource configuration method can be applied to a communication system as shown in FIG. 1. As shown in FIG. 1, the communication system includes a first node 101 and a second node 102.

[0035] The first node 101 and the second node 102 are communicatively connected. The first node 101 can be a terminal, an Internet of Things device, or the like. The second node 102 can be a base station or the like. FIG. 1 takes the first node 101 as a terminal and the second node 102 as a base station as an example for illustration.

[0036] In the embodiment of the present disclosure, the second node 102 can send SRS resource configuration signaling to the first node 101. The first node 101 can receive the SRS resource configuration signaling, thereby determining at least one SRS resource configured by the second node 102 for the first node 101.

[0037] It should be noted that FIG. 1 is only an exemplary framework diagram. The number of devices included in FIG. 1 and the names of various devices are not limited, and in addition to the devices shown in FIG. 1, the communication system can also include other devices, such as a relay node and the like.

[0038] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0039] The sounding reference signal resource configuration method provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0040] The sounding reference signal resource configuration method provided by the embodiments of the present disclosure can be applied to the first node 101 in the communication system shown in FIG. 1. FIG. 2 shows a flowchart of a sounding reference signal resource configuration method, as shown in FIG. 2, the sounding reference signal resource configuration method includes the following S201 and S202.

[0041] S201, receiving SRS resource configuration signaling.

[0042] The SRS resource configuration signaling is used to configure at least one SRS resource.

[0043] In a possible implementation, the first node supports three transmit antenna ports, that is, the first node transmits (for example, transmits a physical uplink shared channel (PUSCH)) through three antenna ports in the plurality of antenna ports. In order to meet the needs of the first node, the at least one SRS resource configured by the SRS resource configuration signaling can be used to associate the three transmit antenna ports of the first node. In this way, the first node can transmit SRS through the at least one SRS resource configured by the SRS resource configuration signaling, thereby solving the problem of how to configure the SRS resource of the terminal with three transmit antenna ports.

[0044] S202, transmitting SRS on the SRS resource according to the SRS resource configuration signaling.

[0045] However, when the antenna switching capability of the terminal is downgraded, how to configure SRS resource for the downgraded terminal, and the association between the SRS resource and the antenna port of the terminal are also technical problems to be solved at present.

[0046] In some embodiments, the antenna switching capability of the first node includes any one of the following: 3T3R, 2T3R, 1T3R, 3T4R, 2T4R, 1T4R, 3T6R, 2T6R, 1T6R, 3T8R, 2T8R, 1T8R. Wherein, the number of receiving antenna ports of the first node can be 3, 4, 6, 8, and the antenna switching capability of three transmitting antenna ports can be 3T3R, 3T4R, 3T6R, 3T8R. Therefore, when the antenna switching capability is downgraded, the number of transmitting antenna ports of the first node used for antenna switching is reduced, for example, from 3T3R to 2T3R or 1T3R.

[0047] It should be noted that the antenna switching capability refers to the capability of the first node to use several transmitting antenna ports each time when transmitting SRS when the use of the SRS resource set is configured as antenna switching. For example, when the antenna switching capability of the first node is 3T3R, the first node can transmit one SRS through three transmitting antenna ports each time when transmitting SRS. When the antenna switching capability of the first node is downgraded, the first node can transmit SRS through one or two transmitting antenna ports each time when transmitting SRS.

[0048] Since the total number of antenna ports of the first node can be 3, 4, 6, 8, in the following, the number of antenna ports of the first node will be divided into four cases, and the SRS resource configuration signaling of different antenna switching capabilities of the first node will be described respectively. Optionally, the at least one SRS resource includes a SRS resource with b transmitting antenna ports; or the at least one SRS resource includes a1 SRS resources with b1 transmitting antenna ports and a2 SRS resources with b2 transmitting antenna ports; wherein a, a1, a2, b, b1, b2 are positive integers.

[0049] Case one, the number of antenna ports of the first node is 3

[0050] 1. In the case of 1T3R antenna switching capability of the first node (i.e. x = 1, a = 3, b = 1), the at least one SRS resource includes three SRS resources with single antenna ports, the three SRS resources with single antenna ports are associated with the three transmitting antenna ports of the first node, and the three SRS resources are associated with different transmitting antenna ports of the first node.

[0051] In a case that the antenna switching capability of the first node is downgraded from 3T3R to 1T3R, the first node can multiplex the SRS resources in the SRS resource set related to the codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, that is, the transmission resources of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set for antenna switching are the same. In this way, the transmission resources of the SRS resource configuration signaling in the two resource sets are the same, and different transmission resources do not need to be allocated for the SRS resources in the two resource sets, thereby saving transmission resources and improving resource utilization.

[0052] The SRS resource set related to the codebook includes a set of SRS resources configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, three single-antenna-port SRS resources are configured in the SRS resource set. The three single-antenna-port SRS resources are associated with one transmitting antenna port of the first node for each antenna port, and the three SRS resources are associated with different three transmitting antenna ports of the first node.

[0053] In a possible implementation, the number of the SRS resource set related to the codebook in the SRS resource configuration signaling is at most two. In addition, the three single-antenna-port SRS resources in the SRS resource set related to the codebook are transmitted on different time domain resources (for example, transmitted on different time domain symbols) and on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0054] It should be noted that the association between the antenna ports of the SRS resources in the SRS resource set configured for antenna switching in the SRS resource configuration signaling and the transmitting antenna ports of the first node can be the same as that of the SRS resources in the SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), which is not limited in the embodiments of the present disclosure.

[0055] 2. In a case that the antenna switching capability of the first node is 2T3R (that is, x=2),

[0056] The at least one SRS resource includes two double-antenna-port SRS resources, two antenna ports of one SRS resource in the two double-antenna-port SRS resources are associated with two transmitting antenna ports of the three transmitting antenna ports of the first node, one antenna port of the two antenna ports of the other SRS resource is associated with one transmitting antenna port of the three transmitting antenna ports of the first node, and the two SRS resources are associated with different transmitting antenna ports of the first node; wherein a=2 and b=2.

[0057] Or, in the case that the number of ports of the at least one SRS resource is different, the at least one SRS resource includes one single antenna port SRS resource and one double antenna port SRS resource, the antenna port of the single antenna port SRS resource is associated with one of the three transmit antenna ports of the first node, the two antenna ports of the double antenna port SRS resource are associated with two of the three transmit antenna ports of the first node, and the two SRS resources are associated with different transmit antenna ports of the first node. Wherein, a1=1, b1=1, a2=1, b2=2.

[0058] In the case that the antenna switching capability of the first node is downgraded from 3T3R to 2T3R, the first node can multiplex the SRS resources in the SRS resource set related to the codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, i.e., the transmission resources of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set for antenna switching are the same. In this way, the transmission resources of the SRS resource configuration signaling in the two resource sets are the same, and there is no need to allocate different transmission resources for the SRS resources in the two resource sets, thereby saving transmission resources and improving resource utilization.

[0059] Wherein, the SRS resource set related to the codebook includes the SRS resource set configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, two double antenna port SRS resources are configured in the SRS resource set. In the two double antenna port SRS resources, the two antenna ports of one SRS resource are associated with two antenna ports of the first node, and one antenna port in the other SRS resource is associated with the remaining one transmit antenna port of the first node, and the other antenna port in the SRS resource is discarded, i.e., not associated with any transmit antenna port of the first node.

[0060] Or, for the SRS resource set related to the codebook in the SRS resource configuration signaling, one double antenna port SRS resource and one single antenna port SRS resource are configured in the SRS resource set. In the two SRS resources, the double antenna port SRS resource is associated with two of the three transmit antenna ports of the first node, and the other single antenna port SRS resource is associated with the remaining one transmit antenna port of the first node.

[0061] In a possible implementation, the number of SRS resource sets related to the codebook in the SRS resource configuration signaling is at most two. In addition, one double-antenna-port SRS resource and one single-antenna-port SRS resource in the SRS resource set related to the codebook are transmitted on different time-domain resources (for example, sent on different time-domain symbols) and on the same frequency-domain resource (for example, sent on the same frequency-domain resource).

[0062] It should be noted that the association of the antenna port of the SRS resource in the SRS resource set configured for antenna switching in the SRS resource configuration signaling with the transmission antenna port of the first node can be the same as that of the SRS resource in the SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), and the embodiments of the present disclosure do not limit this.

[0063] 3. In the case of the antenna switching capability of the first node being 3T3R (that is, x = 3, a = 1, and b = 4), at least one SRS resource includes one four-antenna-port SRS resource, and three antenna ports in the four-antenna-port SRS resource are associated with the three transmission antenna ports of the first node.

[0064] In the case of the antenna switching capability of the first node being 3T3R (that is, x = 3), the antenna transceiving capability of the first node has not been downgraded. At this time, the first node can multiplex the SRS resource in the SRS resource set related to the codebook and the SRS resource in the SRS resource set configured for antenna switching in the SRS resource configuration signaling, that is, the transmission resources of the SRS resource in the SRS resource set related to the codebook and the SRS resource in the SRS resource set configured for antenna switching are the same.

[0065] The SRS resource set related to the codebook includes an SRS resource set configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, one four-antenna-port SRS resource is configured in the SRS resource set. One antenna port in the four antenna ports of the SRS resource is discarded, and the remaining three antenna ports are associated with the three transmission antenna ports of the first node. For example, the last antenna port of the SRS resource is discarded, and the first three antenna ports are associated with the three transmission antenna ports of the first node.

[0066] It should be noted that the port configuration (for example, the association with the transmission antenna port of the first node) of the SRS resource in the SRS resource set configured for antenna switching in the SRS resource configuration signaling can be the same as that of the SRS resource in the SRS resource set related to the codebook.

[0067] In a possible implementation, the number of SRS resource sets related to the codebook in the SRS resource configuration signaling is at most two.

[0068] It should be noted that, for the SRS resource set configured for antenna switching in the SRS resource configuration signaling, the association between the antenna port of the SRS resource and the transmit antenna port of the first node can be the same as that of the SRS resource in the SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), and the embodiments of the present disclosure do not limit this.

[0069] Case two, the number of antenna ports of the first node is 4

[0070] 4. In the case where the antenna switching capability of the first node is 1T4R (that is, x=1, a=4, and b=1), the at least one SRS resource includes four single-antenna-port SRS resources, the antenna ports of three SRS resources of the four single-antenna-port SRS resources are associated with three transmit antenna ports of the first node, and the three SRS resources are associated with different transmit antenna ports of the first node.

[0071] In the case where the antenna switching capability of the first node is downgraded from 3T4R to 1T4R, the first node can multiplex the SRS resources in the SRS resource set related to the codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, that is, the transmission resources of the SRS resources in the SRS resource set related to the codebook and the transmission resources of the SRS resources in the SRS resource set for antenna switching are the same. In this way, the transmission resources of the SRS resource configuration signaling in the two resource sets are the same, and there is no need to allocate different transmission resources for the SRS resources in the two resource sets, thereby saving transmission resources and improving resource utilization.

[0072] The SRS resource set related to the codebook includes SRS resource sets configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, four single-antenna-port SRS resources are configured in the SRS resource set. The antenna ports of three SRS resources of the four single-antenna-port SRS resources are each associated with one transmit antenna port of the first node, and the three SRS resources are associated with three different transmit antenna ports of the first node. The remaining one single-antenna-port SRS resource is discarded. For example, the four single-antenna-port SRS resources are SRS0, SRS1, SRS2, and SRS3, and the selected three SRS resources have the following four possibilities: {SRS0, SRS1, SRS2}, {SRS0, SRS1, SRS3}, {SRS0, SRS2, SRS3}, or {SRS1, SRS2, SRS3}. For convenience, it is recommended to discard the SRS resource with the largest or smallest number, that is, the selected three resources are {SRS0, SRS1, SRS2} or {SRS1, SRS2, SRS3}.

[0073] It can be understood that, because the SRS resources in the SRS resource set related to the codebook are multiplexed with the SRS resources in the SRS resource set for antenna switching, and the antenna ports of the SRS resources in the SRS resource set for antenna switching should be associated with all the transmit antenna ports of the first node, when the SRS resource set for antenna switching is four single-antenna-port SRS resources, the SRS resource set related to the codebook should also be four single-antenna-port SRS resources. However, because the SRS resource set related to the codebook only needs to be associated with three transmit antenna ports, one single-antenna-port SRS resource needs to be discarded.

[0074] In a possible implementation, the number of SRS resource sets related to the codebook in the SRS resource configuration signaling is at most two. In addition, the four single-antenna-port SRS resources in the SRS resource set related to the codebook are transmitted on different time domain resources (for example, transmitted on different time domain symbols) and on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0075] It should be noted that, for the SRS resource set configured as the SRS resource set for antenna switching in the SRS resource configuration signaling, the association between the antenna ports of the SRS resources in the SRS resource set and the transmit antenna ports of the first node can be the same as that of the SRS resources in the SRS resource set related to the codebook described above, or can be different (for example, the association manner in the related art), and the embodiments of the present disclosure do not limit this.

[0076] 5. In the case of the antenna switching capability of the first node being 2T4R (i.e., x = 2),

[0077] The at least one SRS resource includes two double-antenna-port SRS resources, two antenna ports of one of the two double-antenna-port SRS resources are associated with two of the three transmission antenna ports of the first node, one of the two antenna ports of the other SRS resource is associated with one of the three transmission antenna ports of the first node, and the two SRS resources are associated with different transmission antenna ports of the first node; wherein a = 2, b = 2.

[0078] Alternatively, the at least one SRS resource includes one single-antenna-port SRS resource and one double-antenna-port SRS resource, the antenna port of the single-antenna-port SRS resource is associated with one of the three transmission antenna ports of the first node, and the two antenna ports of the double-antenna-port SRS resource are associated with two of the three transmission antenna ports of the first node, and the two SRS resources are associated with different transmission antenna ports of the first node; wherein a1 = 1, b1 = 1, a2 = 1, b2 = 2.

[0079] In the case of the antenna switching capability of the first node being 2T4R (i.e., x = 2),

[0080] The SRS resource set related to the codebook includes an SRS resource set configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, two double-antenna-port SRS resources are configured in the SRS resource set, and the ports are SRS0 P_0, SRS0 P_1, SRS1 P_0, and SRS1 P_1. In the two double-antenna-port SRS resources, the two antenna ports of one SRS resource are associated with the two transmission antenna ports of the first node, and one antenna port in the other SRS resource is associated with the remaining one transmission antenna port of the first node, and the other antenna port in the SRS resource is discarded, that is, not associated with any transmission antenna port. For example, the antenna ports used for association in the two double-antenna-port SRS resources can be the following four possibilities: {SRS0 P_0, SRS0 P_1, SRS1 P_0}, {SRS0 P_0, SRS0 P_1, SRS1 P_1}, {SRS0 P_0, SRS1 P_0, SRS1 P_1}, and {SRS0 P_1, SRS1 P_0, SRS1 P_1}. For convenience, it is recommended to discard the last port, that is, to select {SRS0 P_0, SRS0 P_1, SRS1 P_0}.

[0081] In a possible implementation, the number of SRS resource sets related to the codebook in the SRS resource configuration signaling is at most two. In addition, the two double-antenna-port SRS resources in the SRS resource set related to the codebook are transmitted on different time domain resources (for example, transmitted on different time domain symbols) and on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0082] It should be noted that for the SRS resource set configured for antenna switching in the SRS resource configuration signaling, the association of the antenna ports of the SRS resources with the transmission antenna ports of the first node can be the same as that of the SRS resources in the SRS resource set related to the codebook described above, or can be different (for example, the association manner in the related art), and the embodiments of the present disclosure do not limit this.

[0083] 6. In the case of the antenna switching capability of the first node being 3T4R (that is, x = 3),

[0084] The at least one SRS resource includes two four-antenna-port SRS resources, and three antenna ports in one of the two four-antenna-port SRS resources are associated with the three transmission antenna ports of the first node; wherein a = 2 and b = 4.

[0085] Alternatively, the at least one SRS resource includes two double-antenna-port SRS resources, two antenna ports of one of the two double-antenna-port SRS resources are associated with two of the three transmit antenna ports of the first node, one of the two antenna ports of the other SRS resource is associated with one of the three transmit antenna ports of the first node, and the two SRS resources are associated with different transmit antenna ports of the first node; wherein a = 2, b = 2.

[0086] Alternatively, the at least one SRS resource includes one four-antenna-port SRS resource and one single-antenna-port SRS resource, three of the four antenna ports of the four-antenna-port SRS resource are associated with the three transmit antenna ports of the first node. Wherein a1 = 1, b1 = 4, a2 = 1, b2 = 1.

[0087] In the case of the antenna switching capability of the first node being 3T6R (i.e., x = 3), the antenna transceiving capability of the first node is not backtracked. At this time, the first node can multiplex the SRS resources in the SRS resource set related to the codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, i.e., the transmission resources of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set for antenna switching are the same.

[0088] The SRS resource set related to the codebook includes an SRS resource set configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, two four-antenna-port SRS resources are configured in the SRS resource set. Among the two SRS resources, one SRS resource discards one antenna port, and the remaining three antenna ports are respectively associated with the three transmit antenna ports of the first node; the other SRS resource is discarded, i.e., not associated with any transmit antenna port of the first node.

[0089] Alternatively, the SRS resource set includes two double-antenna-port SRS resources, and the association of the antenna ports of the SRS resources with the transmit antenna ports of the first node can refer to the above 5.

[0090] Alternatively, the SRS resource set includes one four-antenna-port SRS resource and one single-antenna-port SRS resource. Wherein the single-antenna-port SRS resource is discarded, i.e., not associated with any transmit antenna port of the first node, and three of the four antenna ports of the four-antenna-port SRS resource are respectively associated with three different transmit antenna ports of the first node, and the remaining one antenna port of the SRS resource is discarded.

[0091] It can be understood that when the SRS resource set includes two four-antenna-port SRS resources or one four-antenna-port SRS resource and one single-antenna-port SRS resource, due to the multiplexing of the SRS resources in the codebook-related SRS resource set and the SRS resources in the antenna-switched SRS resource set, and the antenna ports of the SRS resources in the antenna-switched SRS resource set should be associated with all the antenna ports of the first node, therefore, when the antenna-switched SRS resource is two four-antenna-port SRS resources or one four-antenna-port SRS resource and one single-antenna-port SRS resource, the codebook-related SRS resource should also be two four-antenna-port SRS resources or one four-antenna-port SRS resource and one single-antenna-port SRS resource. However, since the codebook-related SRS resource only needs to be associated with three transmission antenna ports, one of the four-antenna-port SRS resources or the single-antenna-port SRS resource needs to be discarded.

[0092] In a possible implementation, the number of the codebook-related SRS resource set in the SRS resource configuration signaling is at most two. In addition, the plurality of SRS resources in the codebook-related SRS resource set are transmitted on different time domain resources (for example, transmitted on different time domain symbols) and transmitted on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0093] It should be noted that the association of the antenna ports of the SRS resources in the antenna-switched SRS resource set in the SRS resource configuration signaling with the transmission antenna ports of the first node can be the same as that of the SRS resources in the codebook-related SRS resource set or different (for example, the association manner in the related art), and the embodiments of the present disclosure do not limit this.

[0094] Case three, the number of antenna ports of the first node is 6

[0095] 7. In the case of the antenna switching capability of the first node being 1T6R (that is, x = 1), at least one SRS resource includes six single-antenna-port SRS resources; the antenna ports of three SRS resources of the six SRS resources are associated with the three transmission antenna ports of the first node, and the antenna ports of the three SRS resources are associated with different transmission antenna ports of the first node. Wherein, a = 6, b = 1.

[0096] In the case that the antenna switching capability of the first node is fallback from 3T6R to 1T6R, the first node can multiplex the SRS resources in the SRS resource set related to codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, i.e., the transmission resources of the SRS resources in the SRS resource set related to codebook and the transmission resources of the SRS resources in the SRS resource set for antenna switching are the same. In this way, the transmission resources of the SRS resource configuration signaling in the two resource sets are the same, and there is no need to allocate different transmission resources for the SRS resources in the two resource sets, thereby saving transmission resources and improving resource utilization.

[0097] In the SRS resource configuration signaling, the SRS resource set related to codebook includes a SRS resource set configured for codebook transmission or non-codebook transmission. For the SRS resource set related to codebook in the SRS resource configuration signaling, six single-antenna-port SRS resources are configured in the SRS resource set. Three of the six single-antenna-port SRS resources are discarded, i.e., not associated with the transmit antenna ports of the first node (for example, the last three SRS resources); and for the remaining three single-antenna-port SRS resources, each antenna port is associated with one transmit antenna port of the first node, and the three SRS resources are associated with three different transmit antenna ports of the first node.

[0098] It can be understood that, since the SRS resources in the SRS resource set related to codebook and the SRS resources in the SRS resource set for antenna switching are multiplexed, and the antenna ports of the SRS resources in the SRS resource set for antenna switching should be associated with all the antenna ports of the first node, when the SRS resources for antenna switching are six single-antenna-port SRS resources, the SRS resources related to codebook should also be six single-antenna-port SRS resources. However, since the SRS resources related to codebook only need to be associated with three transmit antenna ports, three single-antenna-port SRS resources need to be discarded.

[0099] In a possible implementation, the number of the SRS resource set related to codebook in the SRS resource configuration signaling is at most two. In addition, the multiple SRS resources in the SRS resource set related to codebook are transmitted on different time domain resources (for example, transmitted on different time domain symbols) and on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0100] It should be noted that, for the SRS resource set configured in the SRS resource configuration signaling and configured for antenna switching, the association relationship between the antenna ports of the SRS resources in the SRS resource set and the transmission antenna ports of the first node can be the same as that of the SRS resources in the SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), and the embodiments of the present disclosure do not limit this.

[0101] 8. In the case where the antenna switching capability of the first node is 2T6R (that is, x=2), the at least one SRS resource includes three double-antenna-port SRS resources; in the two SRS resources of the three double-antenna-port SRS resources, the two antenna ports of one SRS resource are associated with the two transmission antenna ports of the first node, and one antenna port of the two antenna ports of the other SRS resource is associated with one transmission antenna port of the first node, and the two SRS resources are associated with different transmission antenna ports of the first node. Wherein, a=3, b=2.

[0102] In the case where the antenna switching capability of the first node is 2T6R, the first node can multiplex the SRS resources in the SRS resource set related to the codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, that is, the transmission resources of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set for antenna switching are the same. In this way, the transmission resources of the SRS resource configuration signaling in the two resource sets are the same, and there is no need to allocate different transmission resources for the SRS resources in the two resource sets, thereby saving transmission resources and improving resource utilization.

[0103] Wherein, the SRS resource set related to the codebook includes the SRS resource set configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, three double-antenna-port SRS resources are configured in the SRS resource set, and the ports are SRS0 P_0, SRS0 P_1, SRS1 P_0, SRS1 P_1, SRS2 P_0, SRS2 P_1. In the three double-antenna-port SRS resources, one SRS resource is discarded, that is, not associated with the transmission antenna port of the first node; in the remaining two SRS resources (for example, the first two SRS resources), the two antenna ports of one SRS resource are associated with the two transmission antenna ports of the first node, and one antenna port of the other SRS resource is associated with the remaining one transmission antenna port of the first node, and the other antenna port in the SRS resource is discarded, that is, not associated with any antenna port, and the two SRS resources are associated with three different transmission antenna ports of the first node.

[0104] It can be understood that when the SRS resource set includes three SRS resources with double antenna ports, due to the multiplexing of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set for antenna switching, and the antenna ports of the SRS resources in the SRS resource set for antenna switching should be associated with all the antenna ports of the first node, therefore, when the SRS resources for antenna switching are three SRS resources with double antenna ports, the SRS resources related to the codebook should also be three SRS resources with double antenna ports. However, since the SRS resources related to the codebook only need to be associated with three transmitting antenna ports, therefore, one SRS resource with double antenna ports needs to be discarded.

[0105] In a possible implementation, the number of the SRS resource set related to the codebook in the SRS resource configuration signaling is at most two. In addition, the plurality of SRS resources in the SRS resource set related to the codebook are transmitted on different time domain resources (for example, transmitted on different time domain symbols) and on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0106] It should be noted that the association of the antenna ports of the SRS resources in the SRS resource set for antenna switching in the SRS resource configuration signaling with the transmitting antenna ports of the first node can be the same as that of the SRS resources in the SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), which is not limited in the embodiments of the present disclosure.

[0107] 9. In the case where the antenna switching capability of the first node is 3T6R (i.e., x=3), at least one SRS resource includes two SRS resources with four antenna ports, and three of the four antenna ports of one SRS resource of the two SRS resources with four antenna ports are associated with the three transmitting antenna ports of the first node. Wherein, a=2, b=4.

[0108] In the case where the antenna switching capability of the first node is 3T6R (i.e., x=3), the antenna transceiving capability of the first node has not been downgraded. At this time, the first node can multiplex the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set for antenna switching in the SRS resource configuration signaling, that is, the transmission resources of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set for antenna switching are the same.

[0109] The SRS resource set related to the codebook includes SRS resource sets configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, two four-antenna-port SRS resources are configured in the SRS resource set. Among the two SRS resources, one SRS resource discards one antenna port, and the remaining three antenna ports are respectively associated with three transmit antenna ports of the first node; the other SRS resource is discarded, that is, not associated with the transmit antenna port of the first node.

[0110] It can be understood that when the SRS resource set includes two four-antenna-port SRS resources, due to the multiplexing of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the antenna switching SRS resource set, and the antenna ports of the SRS resources in the antenna switching SRS resource set should be associated with all the transmit antenna ports of the first node, therefore, when the antenna switching SRS resource is two four-antenna-port SRS resources, the SRS resource related to the codebook should also be two four-antenna-port SRS resources. However, since the codebook-related SRS resource only needs to be associated with three transmit antenna ports, one of the four-antenna-port SRS resources needs to be discarded.

[0111] In a possible implementation, the number of SRS resource sets related to the codebook in the SRS resource configuration signaling is at most two. In addition, the plurality of SRS resources in the SRS resource set related to the codebook are transmitted on different time domain resources (for example, transmitted on different time domain symbols) and transmitted on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0112] It should be noted that for the SRS resource set configured for antenna switching in the SRS resource configuration signaling, the association relationship between the antenna ports of the SRS resources and the transmit antenna ports of the first node can be the same as that of the SRS resources in the above-mentioned SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), and the embodiments of the present disclosure do not limit this.

[0113] Case four, the number of antenna ports of the first node is 8

[0114] 10. In the case of the antenna switching capability of the first node being 1T8R (that is, x=1), at least one SRS resource includes eight single-antenna-port SRS resources, and the antenna ports of three SRS resources in the eight single-antenna-port SRS resources are associated with three transmit antenna ports of the first node, and the three SRS resources are associated with different transmit antenna ports of the first node. Wherein, a=8, b=1.

[0115] In a case that the antenna switching capability of the first node is fallback from 3T8R to 1T8R, the first node can multiplex the SRS resources in the SRS resource set related to codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, i.e., the transmission resources of the SRS resources in the SRS resource set related to codebook and the transmission resources of the SRS resources in the SRS resource set for antenna switching are the same. In this way, the transmission resources of the SRS resource configuration signaling in the two resource sets are the same, and there is no need to allocate different transmission resources for the SRS resources in the two resource sets, thereby saving transmission resources and improving resource utilization.

[0116] In a case that the antenna switching capability of the first node is fallback from 3T8R to 1T8R, the first node can multiplex the SRS resources in the SRS resource set related to codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, i.e., the transmission resources of the SRS resources in the SRS resource set related to codebook and the transmission resources of the SRS resources in the SRS resource set for antenna switching are the same. In this way, the transmission resources of the SRS resource configuration signaling in the two resource sets are the same, and there is no need to allocate different transmission resources for the SRS resources in the two resource sets, thereby saving transmission resources and improving resource utilization.

[0117] It can be understood that, since the SRS resources in the SRS resource set related to codebook and the SRS resources in the SRS resource set for antenna switching are multiplexed, and the antenna ports of the SRS resources in the SRS resource set for antenna switching should be associated with all the transmission antenna ports of the first node, therefore, in a case that the SRS resources for antenna switching are eight single-antenna-port SRS resources, the SRS resources related to codebook should also be eight single-antenna-port SRS resources. However, since the SRS resources related to codebook only need to be associated with three transmission antenna ports, therefore, five single-antenna-port SRS resources need to be discarded.

[0118] In a possible implementation, the number of the SRS resource set related to codebook in the SRS resource configuration signaling is at most two. In addition, the plurality of SRS resources in the SRS resource set related to codebook are transmitted on different time domain resources (e.g., transmitted on different time domain symbols) and on the same frequency domain resource (e.g., transmitted on the same frequency domain resource).

[0119] It should be noted that, for the SRS resource set configured in the SRS resource configuration signaling and configured for antenna switching, the association relationship between the antenna ports of the SRS resources in the SRS resource set and the transmission antenna ports of the first node can be the same as that of the SRS resources in the SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), and the embodiments of the present disclosure do not limit this.

[0120] 11. In the case of the antenna switching capability of the first node being 2T8R (i.e., x = 2), the at least one SRS resource includes four double-port SRS resources, in the two SRS resources of the four double-port SRS resources, the two antenna ports of one SRS resource are associated with two transmission antenna ports of the three transmission antenna ports of the first node, and the one antenna port of the two antenna ports of the other SRS resource is associated with one transmission antenna port of the three transmission antenna ports of the first node, and the two SRS resources are associated with different transmission antenna ports of the first node. Wherein, a = 4, b = 2.

[0121] In the case of the antenna switching capability of the first node being 2T8R, the first node can multiplex the SRS resources in the SRS resource set related to the codebook in the SRS resource configuration signaling and the SRS resources in the SRS resource set for antenna switching, that is, the transmission resources of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set for antenna switching are the same. In this way, the transmission resources of the SRS resource configuration signaling in the two resource sets are the same, and different transmission resources do not need to be allocated for the SRS resources in the two resource sets, thereby saving transmission resources and improving resource utilization.

[0122] Wherein, the SRS resource set related to the codebook includes the SRS resource set configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, four double-antenna-port SRS resources are configured in the SRS resource set, and the ports are SRS0 P_0, SRS0 P_1, SRS1 P_0, SRS1 P_1, SRS2 P_0, SRS2 P_1, SRS3 P_0, SRS3 P_1. In the four double-antenna-port SRS resources, two SRS resources are discarded, that is, not associated with the transmission antenna ports of the first node; in the remaining two SRS resources (for example, the first two SRS resources), the two antenna ports of one SRS resource are associated with two transmission antenna ports of the first node, and the one antenna port of the other SRS resource is associated with one transmission antenna port of the first node, and the other antenna port of the SRS resource is discarded, that is, not associated with any transmission antenna port, and the two SRS resources are associated with three different antenna ports of the first node.

[0123] It can be understood that when the SRS resource set includes four SRS resources of double antenna ports, due to the multiplexing of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set of antenna switching, and the antenna ports of the SRS resources in the SRS resource set of antenna switching should be associated with all the transmitting antenna ports of the first node, therefore, when the SRS resources of antenna switching are four SRS resources of double antenna ports, the SRS resources related to the codebook should also be four SRS resources of double antenna ports. However, since the SRS resources related to the codebook only need to be associated with three transmitting antenna ports, therefore, two SRS resources of double antenna ports need to be discarded.

[0124] In a possible implementation, the number of SRS resource sets related to the codebook in the SRS resource configuration signaling is at most two. In addition, the plurality of SRS resources in the SRS resource set related to the codebook are transmitted on different time domain resources (for example, transmitted on different time domain symbols), and transmitted on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0125] It should be noted that the association relationship of the antenna ports of the SRS resources in the SRS resource set of antenna switching in the SRS resource configuration signaling with the transmitting antenna ports of the first node can be the same as that of the SRS resources in the SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), and the embodiments of the disclosure do not limit this.

[0126] 12. In the case where the antenna switching capability of the first node is 3T8R (that is, x=3), at least one SRS resource includes three SRS resources of four antenna ports, and three antenna ports of the four antenna ports of one SRS resource of the three SRS resources of four antenna ports are associated with the three transmitting antenna ports of the first node. Wherein, a=3, b=4.

[0127] In the case where the antenna switching capability of the first node is 3T8R (that is, x=3), the antenna transceiving capability of the first node has not been downgraded. At this time, the first node can multiplex the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set of antenna switching in the SRS resource configuration signaling, that is, the transmission resources of the SRS resources in the SRS resource set related to the codebook and the SRS resources in the SRS resource set of antenna switching are the same.

[0128] The SRS resource set related to the codebook includes SRS resource sets configured for codebook transmission (codebook) or non-codebook transmission (nonCodebook). For the SRS resource set related to the codebook in the SRS resource configuration signaling, three SRS resources of four antenna ports are configured in the SRS resource set. Among the three SRS resources, one SRS resource discards one antenna port, and the remaining three antenna ports are respectively associated with three transmit antenna ports of the first node; the remaining two SRS resources are discarded, that is, not associated with the transmit antenna ports of the first node.

[0129] It can be understood that when the SRS resource set includes three SRS resources of four antenna ports, because the SRS resources in the SRS resource set related to the codebook are multiplexed with the SRS resources in the SRS resource set for antenna switching, and the antenna ports of the SRS resources in the SRS resource set for antenna switching should be associated with all the transmit antenna ports of the first node, therefore, when the SRS resource for antenna switching is three SRS resources of four antenna ports, the SRS resource related to the codebook should also be three SRS resources of four antenna ports. However, because the SRS resource related to the codebook only needs to be associated with three transmit antenna ports, therefore, two SRS resources of four antenna ports need to be discarded.

[0130] In a possible implementation, the number of SRS resource sets related to the codebook in the SRS resource configuration signaling is at most two. In addition, the plurality of SRS resources in the SRS resource set related to the codebook are transmitted on different time domain resources (for example, transmitted on different time domain symbols) and on the same frequency domain resource (for example, transmitted on the same frequency domain resource).

[0131] It should be noted that for the SRS resource set configured for antenna switching in the SRS resource configuration signaling, the association relationship between the antenna ports of the SRS resources and the transmit antenna ports of the first node can be the same as that of the SRS resources in the SRS resource set related to the codebook, or can be different (for example, the association manner in the related art), and the embodiments of the disclosure do not limit this.

[0132] The method for configuring a sounding reference signal resource provided by the embodiments of the disclosure can be applied to the second node 102 in the communication system shown in FIG. 1. FIG. 3 shows a flowchart of a second method for configuring a sounding reference signal resource. As shown in FIG. 3, the method for configuring a sounding reference signal resource includes the following S301.

[0133] S301, sending SRS resource configuration signaling.

[0134] The SRS resource configuration signaling is used to configure at least one SRS resource.

[0135] In a possible implementation, the first node supports three transmission antenna ports, that is, the first node performs uplink transmission (for example, PUSCH) through three transmission antenna ports in the plurality of antenna ports. In order to meet the requirement of the first node, the second node can send SRS resource configuration signaling to the first node. The at least one SRS resource configured by the SRS resource configuration signaling can be used to associate the three transmission antenna ports of the first node. In this way, the first node can send SRS through the at least one SRS resource configured by the SRS resource configuration signaling, so as to solve the problem of how to configure the SRS resource of the terminal with three transmission antenna ports.

[0136] It should be noted that the number of at least one SRS resource configured by the SRS configuration signaling and the number of ports of each resource (that is, the configuration mode), and the association relationship between the antenna ports of the at least one SRS resource and the transmission antenna ports of the first node can refer to the description of the first node side described above, and will not be described here again.

[0137] It can be understood that, in order to implement the above functions, the SRS resource configuration device comprises a hardware structure and / or a software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driven hardware depends on the specific application of the technical solution and the design constraint conditions. Professional 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 the present disclosure.

[0138] The embodiments of the present disclosure can divide the function modules of the SRS resource configuration device according to the above-mentioned method embodiments. For example, each function module can be divided according to each function, or two or more functions can be integrated into one function module. The integrated module can be realized in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is illustrative, and is only a logical function division. In actual implementation, another division mode can be used. The following will be described taking the division of each function module according to each function as an example.

[0139] FIG. 4 is a structural schematic diagram of a communication device provided by an embodiment of the present disclosure. The communication device can perform the SRS resource configuration method provided by the above-mentioned method embodiments. As shown in FIG. 4, the communication device comprises a receiving unit 401 and a sending unit 402.

[0140] The receiving unit 401 is configured to receive sounding reference signal (SRS) resource configuration signaling, where the SRS resource configuration signaling is used to configure at least one SRS resource.

[0141] The sending unit 402 is configured to send an SRS on an SRS resource in the at least one SRS resource according to the SRS resource configuration signaling.

[0142] In a possible implementation, the antenna switching capability of the first node includes any one of the following: 3T3R, 2T3R, 1T3R, 3T4R, 2T4R, 1T4R, 3T6R, 2T6R, 1T6R, 3T8R, 2T8R, and 1T8R.

[0143] In a possible implementation, the at least one SRS resource includes an SRS resource with a number of a antenna ports and a number of b antenna ports.

[0144] Alternatively, the at least one SRS resource includes an SRS resource with a number of a1 antenna ports and a number of a2 antenna ports and a number of b1 antenna ports and a number of b2 antenna ports; where a, a1, a2, b, b1, and b2 are positive integers.

[0145] In a possible implementation, when the antenna switching capability of the first node is 3T3R, a = 1 and b = 4, the at least one SRS resource includes an SRS resource with four antenna ports, and three antenna ports in the SRS resource with four antenna ports are associated with three transmitting antenna ports of the first node.

[0146] In a possible implementation, when the antenna switching capability of the first node is downgraded from 3T3R to 2T3R,

[0147] a = 2 and b = 2, the at least one SRS resource includes two SRS resources with two antenna ports, two antenna ports in one of the two SRS resources with two antenna ports are associated with two transmitting antenna ports of the three transmitting antenna ports of the first node, one antenna port in the other SRS resource with two antenna ports is associated with one transmitting antenna port of the three transmitting antenna ports of the first node, and the two SRS resources are associated with different transmitting antenna ports of the first node.

[0148] Alternatively, al = 1, bl = 1, a2 = 1, b2 = 2, the at least one SRS resource comprises one single antenna port SRS resource and one dual antenna port SRS resource, the antenna port of the single antenna port SRS resource is associated with one of the three transmit antenna ports of the first node, the two antenna ports of the dual antenna port SRS resource are associated with two of the three transmit antenna ports of the first node, the antenna ports of the two SRS resources are associated with different transmit antenna ports of the first node.

[0149] In a possible implementation, in the case that the antenna switching capability of the first node is downgraded from 3T3R to 1T3R, a = 3, b = 1, the at least one SRS resource comprises three single antenna port SRS resources, the three single antenna port SRS resources are associated with the three transmit antenna ports of the first node, the antenna ports of the three SRS resources are associated with different transmit antenna ports of the first node.

[0150] In a possible implementation, in the case that the antenna switching capability of the first node is 3T4R,

[0151] a = 2, b = 4, the at least one SRS resource comprises two four antenna port SRS resources, three antenna ports of one of the two four antenna port SRS resources are associated with the three transmit antenna ports of the first node;

[0152] Alternatively, a = 2, b = 2, the at least one SRS resource comprises two dual antenna port SRS resources, two antenna ports of one of the two dual antenna port SRS resources are associated with two of the three transmit antenna ports of the first node, one of the two antenna ports of the other SRS resource is associated with one of the three transmit antenna ports of the first node, the antenna ports of the two SRS resources are associated with different transmit antenna ports of the first node.

[0153] Alternatively, al = 1, bl = 4, a2 = 1, b2 = 1, the at least one SRS resource comprises one four antenna port SRS resource and one single antenna port SRS resource, three of the four antenna ports of the four antenna port SRS resource are associated with the three transmit antenna ports of the first node.

[0154] In a possible implementation, in the case that the antenna switching capability of the first node is downgraded from 3T4R to 2T4R,

[0155] a = 2, b = 2, the at least one SRS resource comprises two double-antenna-port SRS resources, two antenna ports of one of the two double-antenna-port SRS resources are associated with two of the three transmission antenna ports of the first node, one of the two antenna ports of the other SRS resource is associated with one of the three transmission antenna ports of the first node, and the two SRS resources are associated with different transmission antenna ports of the first node.

[0156] In a possible implementation, in a case where the antenna switching capability of the first node is downgraded from 3T4R to 1T4R, a = 4, b = 1, the at least one SRS resource comprises four single-antenna-port SRS resources, the antenna ports of three of the four single-antenna-port SRS resources are associated with the three transmission antenna ports of the first node, and the three SRS resources are associated with different transmission antenna ports of the first node.

[0157] In a possible implementation, in a case where the antenna switching capability of the first node is 3T6R, a = 2, b = 4, the at least one SRS resource comprises two four-antenna-port SRS resources, three of the four antenna ports of one of the two four-antenna-port SRS resources are associated with the three transmission antenna ports of the first node.

[0158] In a possible implementation, in a case where the antenna switching capability of the first node is downgraded from 3T6R to 2T6R, a = 3, b = 2, the at least one SRS resource comprises three double-antenna-port SRS resources;

[0159] wherein, in the two of the three double-antenna-port SRS resources, two antenna ports of one of the two SRS resources are associated with two of the transmission antenna ports of the first node, one of the two antenna ports of the other SRS resource is associated with one of the transmission antenna ports of the first node, and the two SRS resources are associated with different transmission antenna ports of the first node.

[0160] In a possible implementation, in a case where the antenna switching capability of the first node is downgraded from 3T6R to 1T6R, a = 6, b = 1, the at least one SRS resource comprises six single-antenna-port SRS resources, three of the six SRS resources are associated with the three transmission antenna ports of the first node, and the three SRS resources are associated with different transmission antenna ports of the first node.

[0161] In a possible implementation, in the case where the antenna switching capability of the first node is 3T8R, a=3, b=4, the at least one SRS resource includes three four-antenna-port SRS resources, three antenna ports of one of the three four-antenna-port SRS resources are associated with the three transmit antenna ports of the first node.

[0162] In a possible implementation, in the case where the antenna switching capability of the first node is 3T8R, a=3, b=4, the at least one SRS resource includes three four-antenna-port SRS resources, three antenna ports of one of the three four-antenna-port SRS resources are associated with the three transmit antenna ports of the first node.

[0163] In a possible implementation, in the case where the antenna switching capability of the first node is 3T8R, a=3, b=4, the at least one SRS resource includes three four-antenna-port SRS resources, three antenna ports of one of the three four-antenna-port SRS resources are associated with the three transmit antenna ports of the first node.

[0164] In a possible implementation, the at least one SRS resource is an SRS resource set for codebook transmission or non-codebook transmission, and an SRS resource multiplexed by an SRS resource set for antenna switching.

[0165] FIG. 5 is a structural schematic diagram of another communication apparatus provided by an embodiment of the present disclosure, which can execute the sounding reference signal resource configuration method provided by the method embodiments.

[0166] The sending unit 501 is configured to send SRS resource configuration signaling, the SRS resource configuration signaling being used for configuring at least one SRS resource.

[0167] In a possible implementation, the antenna switching capability of the first node includes any one of the following: 3T3R, 2T3R, 1T3R, 3T4R, 2T4R, 1T4R, 3T6R, 2T6R, 1T6R, 3T8R, 2T8R, and 1T8R.

[0168] In a possible implementation, the at least one SRS resource includes an SRS resource of a×b antenna ports.

[0169] Alternatively, the at least one SRS resource includes SRS resources of a1×b1 antenna ports and a2×b2 antenna ports; where a, a1, a2, b, b1, b2 are positive integers.

[0170] In a possible implementation, in a case where the antenna switching capability of the first node is 3T3R, a = 1, b = 4, the at least one SRS resource includes one SRS resource of four antenna ports, and three antenna ports in the SRS resource of four antenna ports are associated with three transmitting antenna ports of the first node.

[0171] In a possible implementation, in a case where the antenna switching capability of the first node is 3T3R and is downgraded to 2T3R,

[0172] a = 2, b = 2, the at least one SRS resource includes the two SRS resources of double antenna ports; two antenna ports of one SRS resource of the two SRS resources of double antenna ports are associated with two transmitting antenna ports of the three transmitting antenna ports of the first node, one antenna port of two antenna ports of the other SRS resource is associated with one transmitting antenna port of the three transmitting antenna ports of the first node, and the two SRS resources are associated with different transmitting antenna ports of the first node.

[0173] Alternatively, a1 = 1, b1 = 1, a2 = 1, b2 = 2, the at least one SRS resource includes one SRS resource of single antenna port and one SRS resource of double antenna port, the antenna port of the SRS resource of single antenna port is associated with one transmitting antenna port of the three transmitting antenna ports of the first node, two antenna ports of the SRS resource of double antenna port are associated with two transmitting antenna ports of the three transmitting antenna ports of the first node, and the antenna ports of the two SRS resources are associated with different transmitting antenna ports of the first node.

[0174] In a possible implementation, in a case where the antenna switching capability of the first node is 3T3R and is downgraded to 1T3R, a = 3, b = 1, the at least one SRS resource includes three SRS resources of single antenna port, and the three SRS resources of single antenna port are associated with the three transmitting antenna ports of the first node, and the three SRS resources are associated with different transmitting antenna ports of the first node.

[0175] In a possible implementation, in a case where the antenna switching capability of the first node is 3T4R,

[0176] a = 2, b = 4, the at least one SRS resource comprises two four-antenna-port SRS resources, three antenna ports in one of the two four-antenna-port SRS resources are associated with the three transmit antenna ports of the first node;

[0177] Alternatively, a = 2, b = 2, the at least one SRS resource comprises two two-antenna-port SRS resources, two antenna ports in one of the two two-antenna-port SRS resources are associated with two of the three transmit antenna ports of the first node, one of the two antenna ports in the other SRS resource is associated with one of the three transmit antenna ports of the first node, the two SRS resources are associated with different transmit antenna ports of the first node.

[0178] Alternatively, a1 = 1, b1 = 4, a2 = 1, b2 = 1, the at least one SRS resource comprises one four-antenna-port SRS resource and one single-antenna-port SRS resource, three of the four antenna ports of the four-antenna-port SRS resource are associated with the three transmit antenna ports of the first node.

[0179] In a possible implementation, in the case that the antenna switching capability of the first node is downgraded from 3T4R to 2T4R,

[0180] a = 2, b = 2, the at least one SRS resource comprises two two-antenna-port SRS resources, two antenna ports in one of the two two-antenna-port SRS resources are associated with two of the three transmit antenna ports of the first node, one of the two antenna ports in the other SRS resource is associated with one of the three transmit antenna ports of the first node, the two SRS resources are associated with different transmit antenna ports of the first node.

[0181] In a possible implementation, in the case that the antenna switching capability of the first node is downgraded from 3T4R to 1T4R, a = 4, b = 1, the at least one SRS resource comprises four single-antenna-port SRS resources, three of the four single-antenna-port SRS resources are associated with the three transmit antenna ports of the first node, the three SRS resources are associated with different transmit antenna ports of the first node.

[0182] In a possible implementation, in the case that the antenna switching capability of the first node is 3T6R, a=2, b=4, the at least one SRS resource includes two four-antenna-port SRS resources, three antenna ports of the four antenna ports of one of the two four-antenna-port SRS resources are associated with three transmit antenna ports of the first node.

[0183] In a possible implementation, in the case that the antenna switching capability of the first node is 3T6R, a=2, b=4, the at least one SRS resource includes two four-antenna-port SRS resources, three antenna ports of the four antenna ports of one of the two four-antenna-port SRS resources are associated with three transmit antenna ports of the first node.

[0184] In a possible implementation, in the case that the antenna switching capability of the first node is 3T6R, a=2, b=4, the at least one SRS resource includes two four-antenna-port SRS resources, three antenna ports of the four antenna ports of one of the two four-antenna-port SRS resources are associated with three transmit antenna ports of the first node.

[0185] In a possible implementation, in the case that the antenna switching capability of the first node is 3T6R, a=2, b=4, the at least one SRS resource includes two four-antenna-port SRS resources, three antenna ports of the four antenna ports of one of the two four-antenna-port SRS resources are associated with three transmit antenna ports of the first node.

[0186] In a possible implementation, in the case that the antenna switching capability of the first node is 3T6R, a=2, b=4, the at least one SRS resource includes two four-antenna-port SRS resources, three antenna ports of the four antenna ports of one of the two four-antenna-port SRS resources are associated with three transmit antenna ports of the first node.

[0187] In a possible implementation, in the case that the antenna switching capability of the first node is 3T6R, a=2, b=4, the at least one SRS resource includes two four-antenna-port SRS resources, three antenna ports of the four antenna ports of one of the two four-antenna-port SRS resources are associated with three transmit antenna ports of the first node.

[0188] In a possible implementation, in a case where the antenna switching capability of the first node is fallback from 3T8R to 1T8R, a=8, b=1, the at least one SRS resource includes eight single-antenna-port SRS resources, and the antenna ports of three SRS resources in the eight single-antenna-port SRS resources are associated with three transmit antenna ports of the first node, and the three SRS resources are associated with different transmit antenna ports of the first node.

[0189] In a possible implementation, the at least one SRS resource is an SRS resource set for codebook transmission or non-codebook transmission, and an SRS resource multiplexed by an SRS resource set for antenna switching.

[0190] In a case where the functions of the above-described integrated modules are implemented in the form of hardware, the embodiments of the present disclosure provide another possible structure of the communication device involved in the above-described embodiments. As shown in FIG. 6, the communication device 60 includes a processor 602 and a bus 604. Optionally, the communication device can further include a memory 601, and optionally, the communication device can further include a communication interface 603.

[0191] The processor 602 can be various exemplary logical blocks, modules and circuits described in combination with the embodiments of the present disclosure. The processor 602 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in combination with the embodiments of the present disclosure. The processor 602 can also be a combination of implementing computing functions, such as a combination of one or more microprocessors, a combination of DSP and microprocessor, etc.

[0192] The communication interface 603 is used to connect with other devices through a communication network. The communication network can be an Ethernet, a wireless access network, a wireless local area network (WLAN) and the like.

[0193] The memory 601 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.

[0194] As a possible implementation, the memory 601 can exist independently of the processor 602, and the memory 601 can be connected to the processor 602 through the bus 604, for storing instructions or program codes. When the processor 602 invokes and executes the instructions or program codes stored in the memory 601, the method for configuring a sounding reference signal resource provided in the embodiments of the present disclosure can be implemented.

[0195] In another possible implementation, the memory 601 can also be integrated with the processor 602.

[0196] The bus 604 can be an extended industry standard architecture (EISA) bus or the like. The bus 604 can be divided into an address bus, a data bus, a control bus, and the like. For the convenience of representation, only one thick line is shown in FIG. 6, but it does not mean that there is only one bus or only one type of bus.

[0197] Some embodiments of the present disclosure provide a computer-readable storage medium (for example, a non-transitory computer-readable storage medium) having computer program instructions stored therein, and the computer program instructions, when executed on a computer, cause the computer to perform the method for configuring a sounding reference signal resource as described in any of the above embodiments.

[0198] By way of example, the computer-readable storage media described above can include, but is not limited to, magnetic storage devices (e.g., hard disk, floppy disk, or magnetic tape), optical storage devices (e.g., compact disk (CD), digital versatile disk (DVD), etc.), smart cards, and flash memory devices (e.g., EPROM, card, stick, or key drive). The various computer-readable storage media described above can represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" shall accordingly be taken to include a single medium or multiple media that store one or more sets of instructions that when executed by a machine cause the machine to perform any one of the methodologies described herein.

[0199] The embodiments of the present disclosure provide a computer program product containing instructions, which, when executed on a computer, cause the computer to perform the method of the sounding reference signal resource configuration described in any of the above embodiments.

[0200] The above merely provides the specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any change or replacement within the technical scope disclosed by the present disclosure shall be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A method for configuring reference signal resources, characterized in that, The method is applied to a first node, and the method comprises: receiving sounding reference signal (SRS) resource configuration signaling, the SRS resource configuration signaling being used for configuring at least one SRS resource; transmitting an SRS on an SRS resource in the at least one SRS resource according to the SRS resource configuration signaling.

2. The method of claim 1, wherein, The antenna switching capability of the first node comprises any one of the following: 3T3R, 2T3R, 1T3R, 3T4R, 2T4R, 1T4R, 3T6R, 2T6R, 1T6R, 3T8R, 2T8R, and 1T8R.

3. The method of claim 1, wherein, The at least one SRS resource comprises an SRS resource of a×b antenna ports. Alternatively, the at least one SRS resource comprises an SRS resource of a1×b1 antenna ports and a2×b2 antenna ports; wherein a, a1, a2, b, b1, and b2 are positive integers.

4. The method of claim 3, wherein, In a case where the antenna switching capability of the first node is 3T3R, a=1 and b=4, the at least one SRS resource comprises one SRS resource of four antenna ports, and three antenna ports in the SRS resource of four antenna ports are associated with three transmitting antenna ports of the first node.

5. The method of claim 3, wherein, In a case where the antenna switching capability of the first node is 3T3R and is downgraded to 2T3R, a=2 and b=2, the at least one SRS resource comprises two SRS resources of double antenna ports; two antenna ports in one SRS resource of the two SRS resources of double antenna ports are associated with two transmitting antenna ports of the three transmitting antenna ports of the first node, one antenna port in the other SRS resource of the two SRS resources is associated with one transmitting antenna port of the three transmitting antenna ports of the first node, and the two SRS resources are associated with different transmitting antenna ports of the first node. Alternatively, a1=1, b1=1, a2=1, and b2=2, the at least one SRS resource comprises one SRS resource of single antenna port and one SRS resource of double antenna port, the antenna port in the SRS resource of single antenna port is associated with one transmitting antenna port of the three transmitting antenna ports of the first node, two antenna ports in the SRS resource of double antenna port are associated with two transmitting antenna ports of the three transmitting antenna ports of the first node, and the antenna ports of the two SRS resources are associated with different transmitting antenna ports of the first node.

6. The method of claim 3, wherein, In a case where the antenna switching capability of the first node is 3T3R and is downgraded to 1T3R, a=3 and b=1, the at least one SRS resource comprises three SRS resources of single antenna port, the three SRS resources of single antenna port are associated with the three transmitting antenna ports of the first node, and the three SRS resources are associated with different transmitting antenna ports of the first node.

7. The method of claim 3, wherein, In a case where the antenna switching capability of the first node is 3T4R, a = 2, b = 4, the at least one SRS resource comprises two four-antenna-port SRS resources, three antenna ports in one of the two four-antenna-port SRS resources are associated with the three transmit antenna ports of the first node; or, a = 2, b = 2, the at least one SRS resource comprises two two-antenna-port SRS resources, two antenna ports of one of the two two-antenna-port SRS resources are associated with two of the three transmit antenna ports of the first node, one of the two antenna ports of the other SRS resource is associated with one of the three transmit antenna ports of the first node, the two SRS resources are associated with different transmit antenna ports of the first node. or, a1 = 1, b1 = 4, a2 = 1, b2 = 1, the at least one SRS resource comprises one four-antenna-port SRS resource and one single-antenna-port SRS resource, three of the four antenna ports of the four-antenna-port SRS resource are associated with the three transmit antenna ports of the first node.

8. The method of claim 3, wherein, In the case that the antenna switching capability of the first node is downgraded from 3T4R to 2T4R, a = 2, b = 2, the at least one SRS resource comprises two two-antenna-port SRS resources, two antenna ports of one of the two two-antenna-port SRS resources are associated with two of the three transmit antenna ports of the first node, one of the two antenna ports of the other SRS resource is associated with one of the three transmit antenna ports of the first node, the two SRS resources are associated with different transmit antenna ports of the first node.

9. The method of claim 3, wherein, In the case that the antenna switching capability of the first node is downgraded from 3T4R to 1T4R, a = 4, b = 1, the at least one SRS resource comprises four single-antenna-port SRS resources, the antenna ports of three of the four single-antenna-port SRS resources are associated with the three transmit antenna ports of the first node, the three SRS resources are associated with different transmit antenna ports of the first node.

10. The method of claim 3, wherein, In the case that the antenna switching capability of the first node is 3T6R, a = 2, b = 4, the at least one SRS resource comprises two four-antenna-port SRS resources, three of the four antenna ports in one of the two four-antenna-port SRS resources are associated with the three transmit antenna ports of the first node.

11. The method of claim 3, wherein, In the case that the antenna switching capability of the first node is downgraded from 3T6R to 2T6R, a = 3, b = 2, the at least one SRS resource comprises three two-antenna-port SRS resources; In the two SRS resources of the three double-antenna-port SRS resources, two antenna ports of one SRS resource are associated with two transmission antenna ports of the first node, one antenna port of two antenna ports of another SRS resource is associated with one transmission antenna port of the first node, and the two SRS resources are associated with different transmission antenna ports of the first node.

12. The method of claim 3, wherein, In a case where the antenna switching capability of the first node is downgraded from 3T6R to 1T6R, a=6 and b=1, and the at least one SRS resource includes six single-antenna-port SRS resources; Three SRS resources of the six SRS resources are associated with three transmission antenna ports of the first node, and the three SRS resources are associated with different transmission antenna ports of the first node.

13. The method of claim 3, wherein, In a case where the antenna switching capability of the first node is 3T8R, a=3 and b=4, and the at least one SRS resource includes three four-antenna-port SRS resources, three of four antenna ports of one SRS resource of the three four-antenna-port SRS resources are associated with three transmission antenna ports of the first node.

14. The method of claim 3, wherein, In a case where the antenna switching capability of the first node is downgraded from 3T8R to 2T8R, a=4 and b=2, and the at least one SRS resource includes four double-antenna-port SRS resources, in the two SRS resources of the four double-antenna-port SRS resources, two antenna ports of one SRS resource are associated with two transmission antenna ports of the three transmission antenna ports of the first node, one antenna port of two antenna ports of another SRS resource is associated with one transmission antenna port of the three transmission antenna ports of the first node, and the two SRS resources are associated with different transmission antenna ports of the first node.

15. The method of claim 3, wherein, In a case where the antenna switching capability of the first node is downgraded from 3T8R to 1T8R, a=8 and b=1, and the at least one SRS resource includes eight single-antenna-port SRS resources, antenna ports of three SRS resources of the eight single-antenna-port SRS resources are associated with three transmission antenna ports of the first node, and the three SRS resources are associated with different transmission antenna ports of the first node.

16. The method of claim 3, wherein, The at least one SRS resource is an SRS resource set for codebook transmission or non-codebook transmission, and an SRS resource multiplexed in SRS resource set for antenna switching. 17.A method for sounding reference signal resource configuration, the method comprising: The method is applied to a second node, and the method comprises: SRS resource configuration signaling is transmitted, and the SRS resource configuration signaling is used for configuring at least one SRS resource.

18. The method of claim 17, wherein, The antenna switching capability of the first node includes any one of the following: 3T3R, 2T3R, 1T3R, 3T4R, 2T4R, 1T4R, 3T6R, 2T6R, 1T6R, 3T8R, 2T8R and 1T8R.

19. The method of claim 17, wherein, The at least one SRS resource includes a SRS resource with b antenna ports. Alternatively, the at least one SRS resource includes SRS resources of a1 b1 antenna ports and a2 b2 antenna ports; wherein a, a1, a2, b, b1, b2 are positive integers.

20. A communications device, characterized by Comprising: a memory and a processor; the memory and the processor are coupled; the memory is configured to store instructions executable by the processor; the processor executes the instructions to perform the method of any one of claims 1-19.

21. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions, when the computer instructions run on the computer, make the computer execute the method of any one of claims 1-19.

22. A computer program product, characterised in that, The computer program product includes computer program instructions, when the computer program instructions are executed by the processor, realize the method of any one of claims 1-19.

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