Communication method for terminal having three transmitting antennas, and device and storage medium

Abstract

Provided in the embodiments of the present disclosure are a communication method for a terminal having three transmitting antennas, and a device and a storage medium. The method can be executed by a terminal. The method comprises: receiving first information, wherein the first information is used for indicating an SRS configuration associated with a first antenna switching configuration, the SRS configuration is used for indicating one or more SRS resource sets, and the function of the SRS resource set is configured to be antenna switching; and on the basis of the first information, sending an SRS on N SRS resources in the one or more SRS resource sets, with N being a positive integer, wherein each of the N SRS resources is configured as at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource and a 4-port SRS resource. By means of the embodiments of the present disclosure, corresponding SRS resources are configured for a terminal having three transmitting antennas.

Description

Communication method, device and storage medium for terminal with three transmission antennas TECHNICAL FIELD

[0001] The present disclosure relates to the field of wireless communication, and particularly relates to a communication method, device and storage medium for a terminal with three transmission antennas. BACKGROUND

[0002] In a communication system, a terminal can send a sounding reference signal (SRS) to an access network device, so as to obtain uplink channel quality and / or downlink signal quality. An SRS resource used by the terminal to send the SRS can be configured by the access network device. With the development of communication technology, a terminal can have three transmission antennas. In this case, the network device needs to configure corresponding SRS resources for the terminal.

[0003] SUMMARY

[0004] For a terminal with three transmission antennas, how to configure corresponding SRS resources.

[0005] Embodiments of the present disclosure provide a terminal capability reporting method, device and storage medium for a terminal with three transmission antennas.

[0006] According to a first aspect of an embodiment of the present disclosure, a terminal capability reporting method for a terminal with three transmission antennas is provided. The method can be performed by a terminal. The above method comprises: receiving first information, the first information being used to indicate SRS configuration associated with first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the function of the SRS resource set being configured as antenna switching; and sending SRS on N SRS resources in the one or more SRS resource sets according to the first information, N being a positive integer; wherein each of the N SRS resources comprises at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource and a 4-port SRS resource.

[0007] According to a second aspect of an embodiment of the present disclosure, a terminal capability reporting method for a terminal with three transmission antennas is provided. The method can be performed by a network device. The above method comprises: sending first information, the first information being used to indicate SRS configuration associated with first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the function of the SRS resource set being configured as antenna switching; and receiving SRS on N SRS resources in the one or more SRS resource sets, N being a positive integer; wherein each of the N SRS resources comprises at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource and a 4-port SRS resource.

[0008] According to a third aspect of embodiments of the present disclosure, a terminal is provided. The terminal includes a transceiver module. The transceiver module is configured to receive first information, the first information being used to indicate an SRS configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the SRS resource sets being configured to function for antenna switching; and transmit SRS on N SRS resources in the one or more SRS resource sets according to the first information, N being a positive integer; and wherein each of the N SRS resources includes at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource.

[0009] According to a fourth aspect of embodiments of the present disclosure, a network device is provided. The network device includes a transceiver module. The transceiver module is configured to transmit first information, the first information being used to indicate an SRS configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the SRS resource sets being configured to function for antenna switching; and receive SRS on N SRS resources in the one or more SRS resource sets, N being a positive integer; and wherein each of the N SRS resources includes at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource, the terminal having three transmission antennas.

[0010] According to a fifth aspect of embodiments of the present disclosure, a terminal having three transmission antennas is provided. The terminal includes at least one processor and a memory storing instructions. The instructions, when executed by the terminal, cause the terminal to implement the method according to the first aspect.

[0011] According to a sixth aspect of embodiments of the present disclosure, a network device is provided. The network device includes at least one processor and a memory storing instructions. The instructions, when executed by the network device, cause the network device to implement the method according to the second aspect.

[0012] According to a seventh aspect of embodiments of the present disclosure, a communication system is provided. The communication system includes a terminal having three transmission antennas and a network device. The terminal is configured to implement the method according to the first aspect; and the network device is configured to implement the method according to the second aspect.

[0013] According to an eighth aspect of embodiments of the present disclosure, a storage medium is provided. The storage medium stores instructions, which, when executed on a communication device, cause the communication device to implement the method according to the first aspect or the second aspect. The communication device can be at least one of a terminal having three transmission antennas and a network device.

[0014] According to a ninth aspect of the embodiments of the present disclosure, a computer program product is provided. The computer program product, when executed by a communication device, causes the communication device to perform the method according to the first aspect or the second aspect. The communication device can be at least one of a terminal with 3 transmit antennas and a network device.

[0015] According to a tenth aspect of the embodiments of the present disclosure, a computer program is provided. The computer program, when executed on a computer, causes the computer to perform the method according to the first aspect or the second aspect.

[0016] According to an eleventh aspect of the embodiments of the present disclosure, a chip or chip system is provided. The chip or chip system includes processing circuitry. The processing circuitry is configured to perform the method according to the first aspect or the second aspect.

[0017] By the embodiments of the present disclosure, the SRS resource is configured for the terminal with 3 transmit antennas, and the configured SRS resource can be used for downlink channel state estimation.

[0018] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and do not constitute a limitation on the embodiments of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the embodiments of the present disclosure together with the specification.

[0020] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure.

[0021] FIG. 2 is a schematic diagram of mapping of SRS resource on time-frequency domain resource according to an embodiment of the present disclosure.

[0022] FIG. 3 is a schematic diagram of a radio frequency architecture of a terminal according to an embodiment of the present disclosure.

[0023] FIG. 4 is an exemplary interaction diagram of a communication method according to an embodiment of the present disclosure.

[0024] FIG. 5 is a schematic diagram of SRS resource and antenna switching interval according to an embodiment of the present disclosure.

[0025] FIG. 6A is a flow diagram of a terminal side performing a communication method according to an embodiment of the present disclosure.

[0026] FIG. 6B is a flow diagram of a network device side performing a communication method according to an embodiment of the present disclosure.

[0027] FIG. 7A is another implementation flow diagram of a terminal side performing a communication method according to an embodiment of the present disclosure.

[0028] FIG. 7B is another implementation flow diagram of a method for performing communication on a network device side, according to an embodiment of the present disclosure.

[0029] FIG. 8A is a schematic diagram of a structure of a terminal, according to an embodiment of the present disclosure.

[0030] FIG. 8B is a schematic diagram of a structure of a network device, according to an embodiment of the present disclosure.

[0031] FIG. 9A is a schematic diagram of a structure of a communication device, according to an embodiment of the present disclosure.

[0032] FIG. 9B is a schematic diagram of a structure of a chip, according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] Embodiments of the present disclosure provide a terminal capability reporting method for three transmission antennas, a device and a storage medium.

[0034] In a first aspect, embodiments of the present disclosure provide a terminal capability reporting method for three transmission antennas, the method being performed by a terminal and comprising: receiving first information, the first information being used to indicate an SRS configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the SRS resource sets being configured to have an antenna switching function; and transmitting SRS on N SRS resources in the one or more SRS resource sets according to the first information, N being a positive integer; wherein each of the N SRS resources comprises at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource and a 4-port SRS resource.

[0035] In embodiments of the present disclosure, a terminal with three transmission antennas transmits SRS on N SRS resources in one or more SRS resource sets configured by a network device according to a first antenna switching configuration, so that the network device can obtain channel status information (CSI) according to the SRS, thereby achieving estimation of a downlink channel.

[0036] In combination with the first aspect, in some possible implementation manners, each SRS resource set comprises SRS resources with the same number of ports and / or SRS resources with different numbers of ports.

[0037] In combination with the first aspect, in some possible implementation manners, each SRS resource set is one of: a periodic SRS resource set; a semi-persistent SRS resource set; and an aperiodic SRS resource set.

[0038] With reference to the first aspect, in some possible implementations, the first antenna switching configuration comprises one of: 2 transmission ports and 3 reception ports; 3 transmission ports and 3 reception ports; 3 transmission ports and 4 reception ports; 3 transmission ports and 6 reception ports.

[0039] With reference to the first aspect, in some possible implementations, the first antenna switching configuration is 3 transmission ports and 3 reception ports, and the N SRS resources comprise at least one of: 1 3-port SRS resource; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource.

[0040] With reference to the first aspect, in some possible implementations, the N SRS resources comprise 1 4-port SRS resource, and the method further comprises: determining an equivalent 3-port SRS resource in the 4-port SRS resource.

[0041] With reference to the first aspect, in some possible implementations, the 3-port SRS resource is determined based on at least one of: a preconfigured port; a first SRS port, the first SRS port being a port used or not used by the terminal when reporting the SRS for antenna switching; a second SRS port, the second SRS port being a port configured by the network device when sending the SRS for antenna switching.

[0042] With reference to the first aspect, in some possible implementations, the first antenna switching configuration is 2 transmission ports and 3 reception ports, and the N SRS resources comprise one of: 1 3-port SRS resource; 1 1-port SRS resource and 1 2-port SRS resource.

[0043] With reference to the first aspect, in some possible implementations, the first antenna switching configuration is 3 transmission ports and 4 reception ports, and the N SRS resources comprise one of: 1 1-port SRS resource and 1 3-port SRS resource; 2 2-port SRS resources; 4 1-port SRS resources.

[0044] With reference to the first aspect, in some possible implementations, the first antenna switching configuration is 3 transmission ports and 6 reception ports, and the N SRS resources comprise one of: 6 1-port SRS resources; 2 3-port SRS resources; 3 2-port SRS resources.

[0045] With reference to the first aspect, in some possible implementation, the first antenna switching configuration is x transmitting ports and y receiving ports, x is less than y; the N SRS resources at least include: a first SRS resource and a second SRS resource, a port number of the second SRS resource is not equal to a port number of the first SRS resource; the method further includes: adjusting a transmitting power of an SRS port at a time domain location where the first SRS resource is located based on a first parameter, wherein the transmitting power of each SRS port in the SRS resource at different time domain locations is the same, and the first parameter is determined based on the port number of the first SRS resource and the port number of the second SRS resource.

[0046] In the embodiments of the present disclosure, in the case that the port numbers of different SRS resources are different, the transmitting power of the SRS port at the time domain location where the SRS resource is located is adjusted, so that the transmitting power of each SRS port in the SRS resource at different time domain locations is the same, thereby balancing the transmitting power.

[0047] With reference to the first aspect, in some possible implementation, a value of x is 2 or 3, and a value of y is 3 or 4.

[0048] With reference to the first aspect, in some possible implementation, N is greater than or equal to 2, an antenna switching interval is added between a last symbol of an i th SRS resource in the N SRS resources and a first symbol of an (i+1) th SRS resource, the i th SRS resource is adjacent to the (i+1) th SRS resource, i is a positive integer less than or equal to N-1.

[0049] With reference to the first aspect, in some possible implementation, a length of the antenna switching interval is configured by the network device according to a support capability of the terminal on the antenna switching interval.

[0050] With reference to the first aspect, in some possible implementation, the antenna switching interval includes at least one of the following: 0 time units; 1 time unit; 2 time units.

[0051] In the second aspect, the embodiments of the present disclosure provide a terminal capability reporting method for 3 transmitting antennas, the method is performed by a network device, and the method includes: sending first information, the first information is used to indicate an SRS configuration associated with a first antenna switching configuration, the SRS configuration is used to indicate one or more SRS resource sets, and the SRS resource set is configured to have antenna switching function; receiving SRS on N SRS resources in the one or more SRS resource sets, N is a positive integer; wherein each SRS resource in the N SRS resources includes at least one of the following: a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource.

[0052] With reference to the second aspect, in some possible implementations, each SRS resource set includes SRS resources with same number of ports and / or SRS resources with different number of ports.

[0053] With reference to the second aspect, in some possible implementations, each SRS resource set is one of: a periodic SRS resource set; a semi-persistent SRS resource set; an aperiodic SRS resource set.

[0054] With reference to the second aspect, in some possible implementations, the first antenna switching configuration includes one of: 2 transmission ports and 3 reception ports; 3 transmission ports and 3 reception ports; 3 transmission ports and 4 reception ports; 3 transmission ports and 6 reception ports.

[0055] With reference to the second aspect, in some possible implementations, the first antenna switching configuration is 3 transmission ports and 3 reception ports, and the N SRS resources include at least one of: 1 3-port SRS resource; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource.

[0056] With reference to the second aspect, in some possible implementations, the N SRS resources include 1 4-port SRS resource, and the method further includes: determining an equivalent 3-port SRS resource in the 4-port SRS resource.

[0057] With reference to the second aspect, in some possible implementations, the 3-port SRS resource is determined based on at least one of: a pre-configured port; a first SRS port, which is a port used or not used by the terminal when reporting SRS for antenna switching; a second SRS port, which is a port configured by the network device when configuring SRS for antenna switching.

[0058] With reference to the second aspect, in some possible implementations, the first antenna switching configuration is 2 transmission ports and 3 reception ports, and the N SRS resources include at least one of: 1 3-port SRS resource; 1 1-port SRS resource and 1 2-port SRS resource.

[0059] With reference to the second aspect, in some possible implementations, the first antenna switching configuration is 3 transmission ports and 4 reception ports, and the N SRS resources include at least one of: 1 1-port SRS resource and 1 3-port SRS resource; 2 2-port SRS resources; 4 1-port SRS resources.

[0060] In a possible implementation of the second aspect, the first antenna switching configuration is 3 transmission ports and 6 reception ports, and the N SRS resources include one of the following: 6 1-port SRS resources; 2 3-port SRS resources; 3 2-port SRS resources.

[0061] In a possible implementation of the second aspect, N is greater than or equal to 2, and an antenna switching gap is added between a last symbol of an i-th SRS resource of the N SRS resources and a first symbol of an (i+1)-th SRS resource, the i-th SRS resource and the (i+1)-th SRS resource are adjacent, i is a positive integer less than or equal to N-1.

[0062] In a possible implementation of the second aspect, a length of the antenna switching gap is configured by the network device according to a support capability of the terminal for the antenna switching gap.

[0063] In a possible implementation of the second aspect, the antenna switching gap includes at least one of the following: 0 time units; 1 time unit; 2 time units.

[0064] In a third aspect, the embodiments of the present disclosure provide a terminal having 3 transmission antennas, including: a transceiver module configured to: receive first information, the first information being used to indicate an SRS configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the SRS resource set being configured to function as antenna switching; and transmit SRS on N SRS resources in the one or more SRS resource sets according to the first information, N being a positive integer; wherein each SRS resource in the N SRS resources includes at least one of the following: a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource.

[0065] In a possible implementation of the third aspect, each SRS resource set includes SRS resources with the same number of ports and / or SRS resources with different numbers of ports.

[0066] In a possible implementation of the third aspect, each SRS resource set is one of the following: a periodic SRS resource set; a semi-persistent SRS resource set; and an aperiodic SRS resource set.

[0067] In a possible implementation of the third aspect, the first antenna switching configuration includes one of the following: 2 transmission ports and 3 reception ports; 3 transmission ports and 3 reception ports; 3 transmission ports and 4 reception ports; and 3 transmission ports and 6 reception ports.

[0068] In some possible implementation manners of the third aspect, the first antenna switching configuration is 3 transmission ports and 3 reception ports, and the N SRS resources include at least one of the following: 1 three-port SRS resource; 1 one-port SRS resource and 1 two-port SRS resource; 1 four-port SRS resource.

[0069] In some possible implementation manners of the third aspect, the N SRS resources include 1 four-port SRS resource, and the method further includes: determining an equivalent three-port SRS resource in the four-port SRS resource.

[0070] In some possible implementation manners of the third aspect, the three-port SRS resource is determined based on at least one of the following: a preconfigured port; a first SRS port, which is a port used or not used by the terminal when reporting SRS for antenna switching; and a second SRS port, which is a port used or not used by the network device when configuring SRS for antenna switching.

[0071] In some possible implementation manners of the third aspect, the first antenna switching configuration is 2 transmission ports and 3 reception ports, and the N SRS resources include at least one of the following: 1 three-port SRS resource; 1 one-port SRS resource and 1 two-port SRS resource.

[0072] In some possible implementation manners of the third aspect, the first antenna switching configuration is 3 transmission ports and 4 reception ports, and the N SRS resources include at least one of the following: 1 one-port SRS resource and 1 three-port SRS resource; 2 two-port SRS resources; 4 one-port SRS resources.

[0073] In some possible implementation manners of the third aspect, the first antenna switching configuration is 3 transmission ports and 6 reception ports, and the N SRS resources include at least one of the following: 6 one-port SRS resources; 2 three-port SRS resources; 3 two-port SRS resources.

[0074] In some possible implementation manners of the third aspect, the first antenna switching configuration is x transmission ports and y reception ports, x is less than y; the N SRS resources include at least: a first SRS resource and a second SRS resource, the number of ports of the second SRS resource is not equal to the number of ports of the first SRS resource; and the terminal further includes a processing module configured to adjust the transmission power of the SRS ports in the time domain position of the first SRS resource based on a first parameter, wherein the transmission power of each SRS port in the SRS resource in different symbols is the same, and the first parameter is determined based on the number of ports of the first SRS resource and the number of ports of the second SRS resource.

[0075] In some possible implementation manners of the third aspect, x is 2 or 3, and y is 3 or 4.

[0076] In some possible implementation manners of the third aspect, N is greater than or equal to 2, and an antenna switching interval is added between a last symbol of an i th SRS resource in the N SRS resources and a first symbol of an (i+1) th SRS resource, the i th SRS resource is adjacent to the (i+1) th SRS resource, and i is a positive integer less than or equal to N-1.

[0077] In some possible implementation manners of the third aspect, a length of the antenna switching interval is configured by the network device according to a support capability of the terminal for the antenna switching interval.

[0078] In some possible implementation manners of the third aspect, the antenna switching interval includes at least one of the following: 0 time units; 1 time unit; 2 time units.

[0079] In a fourth aspect, the embodiments of the present disclosure provide a network device, including: a transceiver module configured to: transmit first information, the first information being used to indicate an SRS configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, and a function of the SRS resource set being configured as antenna switching; and receive SRSs on N SRS resources in the one or more SRS resource sets, N being a positive integer; wherein each SRS resource in the N SRS resources includes at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource, and the terminal has 3 transmission antennas.

[0080] In some possible implementation manners of the fourth aspect, each SRS resource set includes SRS resources with the same number of ports and / or SRS resources with different numbers of ports.

[0081] In some possible implementation manners of the fourth aspect, each SRS resource set is one of the following: a periodic SRS resource set; a semi-persistent SRS resource set; and an aperiodic SRS resource set.

[0082] In some possible implementation manners of the fourth aspect, the first antenna switching configuration includes one of the following: 2 transmission ports and 3 reception ports; 3 transmission ports and 3 reception ports; 3 transmission ports and 4 reception ports; and 3 transmission ports and 6 reception ports.

[0083] In some possible implementation manners of the fourth aspect, the first antenna switching configuration is 3 transmission ports and 3 reception ports, and the N SRS resources include at least one of the following: 1 three-port SRS resource; 1 one-port SRS resource and 1 two-port SRS resource; 1 four-port SRS resource.

[0084] In some possible implementation manners of the fourth aspect, the N SRS resources include 1 four-port SRS resource, and the method further includes: determining an equivalent three-port SRS resource in the four-port SRS resource.

[0085] In some possible implementation manners of the fourth aspect, the three-port SRS resource is determined based on at least one of the following: a preconfigured port; a first SRS port, which is a port used or not used by the terminal when reporting SRS for antenna switching; and a second SRS port, which is a port used or not used by the network device when configuring SRS for antenna switching.

[0086] In some possible implementation manners of the fourth aspect, the first antenna switching configuration is 2 transmission ports and 3 reception ports, and the N SRS resources include at least one of the following: 1 three-port SRS resource; 1 one-port SRS resource and 1 two-port SRS resource.

[0087] In some possible implementation manners of the fourth aspect, the first antenna switching configuration is 3 transmission ports and 4 reception ports, and the N SRS resources include at least one of the following: 1 one-port SRS resource and 1 three-port SRS resource; 2 two-port SRS resources; 4 one-port SRS resources.

[0088] In some possible implementation manners of the fourth aspect, the first antenna switching configuration is 3 transmission ports and 6 reception ports, and the N SRS resources include at least one of the following: 6 one-port SRS resources; 2 three-port SRS resources; 3 two-port SRS resources.

[0089] In some possible implementation manners of the fourth aspect, N is greater than or equal to 2, and an antenna switching interval is added between a last symbol of an i th SRS resource in the N SRS resources and a first symbol of an (i+1) th SRS resource, the i th SRS resource and the (i+1) th SRS resource are adjacent, and i is a positive integer less than or equal to N-1.

[0090] In some possible implementation manners of the fourth aspect, a length of the antenna switching interval is configured by the network device according to a support capability of the terminal for the antenna switching interval.

[0091] In combination with the fourth aspect, in some possible implementation manners, the antenna switching interval comprises at least one of: 0 time units; 1 time unit; 2 time units.

[0092] In a fifth aspect, the embodiments of the present disclosure provide a terminal. The terminal has 3 transmit antennas. The terminal comprises at least one processor and a memory storing instructions. The instructions, when executed by the terminal, cause the terminal to implement the method according to any one of the first aspect and the embodiments thereof.

[0093] In a sixth aspect, the embodiments of the present disclosure provide a network device. The network device comprises at least one processor and a memory storing instructions. The instructions, when executed by the network device, cause the network device to implement the method according to any one of the second aspect and the embodiments thereof.

[0094] In a seventh aspect, the embodiments of the present disclosure provide a communication system. The communication system comprises a terminal and a network device. The terminal is configured to perform the method according to any one of the first aspect and the embodiments thereof. The network device is configured to perform the method according to any one of the second aspect and the embodiments thereof.

[0095] In an eighth aspect, the embodiments of the present disclosure provide a storage medium. The storage medium stores instructions. The instructions, when executed on a communication device, cause the communication device to perform the method according to any one of the first aspect, the second aspect and the embodiments thereof, the communication device comprising at least one of a terminal and a network device having 3 transmit antennas.

[0096] In a ninth aspect, the embodiments of the present disclosure provide a computer program product. The program product, when executed by a communication device, causes the communication device to perform the method according to any one of the first aspect, the second aspect and the embodiments thereof, the communication device comprising at least one of a terminal and a network device having 3 transmit antennas.

[0097] In a tenth aspect, the embodiments of the present disclosure provide a computer program. The computer program, when executed on a computer, causes the computer to perform the method according to any one of the first aspect, the second aspect and the embodiments thereof.

[0098] In an eleventh aspect, the embodiments of the present disclosure provide a chip or chip system. The chip or chip system comprises processing circuitry. The processing circuitry is configured to perform the method according to any one of the first aspect, the second aspect and the possible implementation manners thereof.

[0099] The embodiment of the present disclosure provides a communication method, a device and a storage medium for a terminal with three transmitting antennas. In some embodiments, the terms of the communication method, the communication method, the information processing method, the information transmission method, and the like for the terminal with three transmitting antennas can be replaced with each other, the terms of the network element, the network device, the network function, the network entity, and the like can be replaced with each other, and the terms of the communication system, the information processing system, and the like can be replaced with each other.

[0100] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or part or all of the steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments.

[0101] In the embodiments of the present disclosure, the terms and / or descriptions between the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0102] The terms used in the embodiments of the present disclosure are only for the purpose of describing the specific embodiments, and not as a limitation on the present disclosure.

[0103] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "a", "one", "the", "the above", "the", "the above", "this" and the like, can represent "one and only one", and can also represent "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, and can also be understood as plural expression.

[0104] In the embodiments of the present disclosure, "a plurality of" means two or more than two.

[0105] In some embodiments, the terms of "at least one (at least one, at least one, at least one)", "one or more" and the like can be replaced with each other.

[0106] In some embodiments, "at least one of A, B", "A and / or B", "in one case A, in another case B", "responsive to case A, responsive to case B" and the like, can be interpreted to include both cases, A and B, in some embodiments, A (A is performed regardless of B), in some embodiments, B (B is performed regardless of A), in some embodiments, selected from the group consisting of A and B (the selection between A and B is an option), in some embodiments, A and B (both A and B are performed).

[0107] In some embodiments, "A or B" and the like, can be interpreted to include both cases, A and B, in some embodiments, A (A is performed regardless of B), in some embodiments, B (B is performed regardless of A), in some embodiments, selected from the group consisting of A and B (the selection between A and B is an option).

[0108] In some embodiments, the prefix words "first", "second" and the like in the disclosure do not limit the position, order, priority, number or content of the described objects, and the description of the described objects should be understood in the context of the claims or embodiments, and should not be construed as redundant limitations. For example, the described object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified by them are in the same message or not, nor do they limit the order of "first field" and "second field". For another example, the described object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the number of described objects is not limited by ordinal words, and can be one or more. For example, "first device", where the number of "devices" can be one or more. In addition, objects modified by different prefix words can be the same or different, for example, the described object is "device", and "first device" and "second device" can be the same device or different devices, and their types can be the same or different; for another example, the described object is "information", and "second information" and "first information" can be the same information or different information, and their contents can be the same or different.

[0109] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0110] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0111] In some embodiments, the terms "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above", and the like can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "fewer than", "fewer than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below", and the like can be replaced with each other.

[0112] In some embodiments, an apparatus and the like can be interpreted as an entity, and can also be interpreted as virtual, and the name thereof is not limited to the name recited in the embodiments, and the terms "apparatus", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", and the like can be replaced with each other.

[0113] In some embodiments, "network" can be interpreted as an apparatus (for example, an access network device, a core network device, and the like) included in the network.

[0114] In some embodiments, the terms “access network device (AN device),” “radio access network device (RAN device),” “base station (BS),” “radio base station,” “fixed station,” “node,” “access point,” “transmission point (TP),” “reception point (RP),” “transmission / reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femto cell,” “pico cell,” “sector,” “cell group,” “serving cell,” “carrier,” “component carrier,” “bandwidth part (BWP),” and the like can be used interchangeably.

[0115] In some embodiments, the terms "terminal," "terminal device," "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," and so on can be replaced with each other.

[0116] In some embodiments, the access network device, the core network device, or the network device can be replaced with a terminal. For example, the embodiments of the present disclosure can also be applied to a structure in which communication between the access network device, the core network device, or the network device and the terminal is replaced with communication between a plurality of terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the terminal can also be configured to have all or part of the functions of the access network device. In addition, the terms "uplink," "downlink," and the like can also be replaced with terms corresponding to the inter-terminal communication (e.g., "side"). For example, the uplink channel, the downlink channel, and the like can be replaced with the side channel, and the uplink, the downlink, and the like can be replaced with the sidelink.

[0117] In some embodiments, the terminal can be replaced with the access network device, the core network device, or the network device. In this case, the access network device, the core network device, or the network device can also be configured to have all or part of the functions of the terminal.

[0118] In some embodiments, the data, information, etc. can be obtained in compliance with the laws and regulations of the country in which the location is situated.

[0119] In some embodiments, the data, information, etc. can be obtained after obtaining the consent of the user.

[0120] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0121] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG. 1, the communication system 100 includes a terminal 101 and a network device 102. In an example, the network device 102 can be an access network device.

[0122] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an internet of things (IoT) device, a car with communication function, a smart car, a Pad, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc., but is not limited thereto.

[0123] In some embodiments, the network device 102 may, for example, be a node or device that accesses a terminal to a wireless network, and the network device can include at least one of an evolved NodeB (eNB), a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a satellite base station, a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

[0124] In some embodiments, the technical solutions of the present disclosure can be applicable to an Open RAN architecture, at this time, the interfaces in the network device involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be realized by software or programs.

[0125] In some embodiments, the network device 102 can be composed of a central unit (CU) and a distributed unit (DU), wherein the CU can also be referred to as a control unit (control unit), and the CU-DU structure can split the protocol layers of the network device, and part of the functions of the protocol layers are controlled by the CU, and the remaining part or all of the functions of the protocol layers are distributed in the DU and controlled by the CU, but the present disclosure is not limited thereto.

[0126] In some embodiments, the network device 102 can be one device, or a plurality of devices or a group of devices. The network device 102 can be virtual or physical.

[0127] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does 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 system 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.

[0128] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1 or part of the subject, but are not limited thereto. The subjects shown in FIG. 1 are illustrative, and the communication system can include all or part of the subjects in FIG. 1, or other subjects other than FIG. 1. The number and form of each subject is arbitrary, and the connection relationship between each subject is illustrative. Each subject can be connected or not connected, and the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0129] Embodiments of the present disclosure can be applied to long term evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new-radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra-wide band (UWB), bluetooth (bluetooth (registered trademark)), public land mobile network (PLMN) network, device-to-device (D2D) system, machine to machine (M2M) system, internet of things (IoT) system, vehicle-to-everything (V2X), system using other communication methods, next-generation system expanded based on them, and the like. In addition, a plurality of systems can be combined (for example, combination of LTE or LTE-A and 5G, and the like).

[0130] In a communication system, a terminal can estimate an uplink channel and / or a downlink channel by sending an SRS to a network device. The network device configures an SRS resource for the terminal to send the SRS. When configuring the SRS resource, the network device needs to know the capability of the terminal related to the SRS and configure the SRS resource for the terminal according to the capability of the terminal.

[0131] In some embodiments, a terminal can have one or more antenna ports, and the terminal can transmit SRS through the one or more antenna ports. In this case, the SRS resource configured by the network device for the terminal can correspond to the number of antenna ports of the terminal. More specifically, the SRS resource can have one or more SRS ports, and the number of SRS ports can correspond to the number of antenna ports of the terminal. In some embodiments, the number of SRS ports supported by the SRS resource can be 1, 2, 4, 8, etc. In some embodiments, the number of SRS ports can be configured by a high-layer parameter nrofSRS-Ports in the configuration information.

[0132] In the embodiments of the present disclosure, the terms of antenna port, SRS port, physical antenna, antenna, etc. can be replaced with each other.

[0133] The SRS resource can occupy one or more symbols (for example, orthogonal frequency division multiplexing (OFDM) symbols) in the time domain. The symbols occupied by the SRS resource can be continuous in the time domain. In some embodiments, the number of available time domain resources, that is, the number of symbols that can be occupied by the SRS resource, can be 1, 2, 4, 8, 10, 12, 14, etc. In some embodiments, the number of symbols occupied by the SRS resource can be configured by a high-layer parameter nrofSymbol in the configuration information. In some embodiments, the position of the starting symbol of the SRS resource can be 0, 1, 2, 3, 4, 5, etc. In some embodiments, the position of the starting symbol of the SRS resource can be configured by a high-layer parameter startPosition in the configuration information.

[0134] Figure 2 is a mapping diagram of SRS resources on time-frequency domain resources according to an embodiment of the present disclosure. As shown in Figure 2, there are three SRS resources, SRS resource A, SRS resource B and SRS resource C, mapped on time-frequency domain resources. SRS resource A occupies one symbol in time domain, and the first symbol of SRS resource A is the third symbol from the last symbol of the slot in which SRS resource A is located. The high-level parameters nrofSymbol and startPosition associated with SRS resource A can be 1 and 3, respectively. SRS resource B occupies four symbols in time domain, and the last symbol of SRS resource B is the second symbol from the last symbol of the slot in which SRS resource B is located. The high-level parameters nrofSymbol and startPosition associated with SRS resource B can be 4 and 2, respectively. SRS resource C occupies two symbols in time domain, and the last symbol of SRS resource C is the zeroth symbol from the last symbol of the slot in which SRS resource C is located. The high-level parameters nrofSymbol and startPosition associated with SRS resource C can be 2 and 0, respectively.

[0135] The SRS resources can be arranged comb-like in frequency domain. That is, the subcarriers occupied by an SRS resource are arranged at equal intervals. Obviously, the subcarriers occupied by an SRS resource are discontinuous. In some embodiments, the arrangement period of the subcarriers occupied by an SRS resource in frequency domain can be 2, 4, etc. In some embodiments, the arrangement period of the subcarriers occupied by an SRS resource in frequency domain can be configured by the high-level parameter transmissionComb in the configuration information. In some embodiments, the offset of the subcarriers occupied by an SRS resource in frequency domain can be 0, 1, 2, 3, etc. In some embodiments, the offset of the subcarriers occupied by an SRS resource in frequency domain can be configured by the high-level parameter combOffset in the configuration information.

[0136] Continuing to refer to Figure 2, SRS resource A is arranged comb-like in frequency domain with an arrangement period of 2, and the offset of the first subcarrier occupied by SRS resource A relative to the first subcarrier (lower edge) of the time-frequency resource is 0. The high-level parameters transmissionComb and combOffset associated with SRS resource A can be 2 and 0, respectively. Similarly, the high-level parameters transmissionComb and combOffset associated with SRS resource B can be 2 and 1, respectively, and the high-level parameters transmissionComb and combOffset associated with SRS resource C can be 4 and 0, respectively.

[0137] In some embodiments, the mapping of an 8-port SRS resource (i.e., an SRS resource with a number of supported SRS ports equal to 8) on time-frequency resources can be implemented in both time division multiplexing (TDM) and non-TDM manners. In some embodiments, whether an 8-port SRS resource is implemented in a TDM manner can be configured by a higher layer parameter transmissionComb in configuration information. In some embodiments, for a non-TDM manner, the mapping of an 8-port SRS resource on time-frequency resources can be implemented by different combinations among arrangement period, subcarrier offset, and cyclic shift. In an example, a higher layer parameter transmissionComb related to an 8-port SRS resource can be 2, and different cyclic shifts are adopted. In an example, a higher layer parameter transmissionComb related to an 8-port SRS resource can be 4 or 8, and different subcarrier offsets and different cyclic shifts are adopted. In some embodiments, for a TDM manner, an 8-port SRS resource can occupy multiple symbols. In an example, an 8-port SRS resource can occupy 2 symbols. At this time, 8 SRS ports corresponding to the 8-port SRS resource can be divided into 2 SRS port subsets. Each SRS port subset can include 4 SRS ports. For example, a first SRS port subset can include ports 0, 1, 4, and 5, and a second SRS port subset can include ports 2, 3, 6, and 7.

[0138] With the development of wireless communication technology, a terminal can have 3 transmit antennas, where the 3 transmit antennas are physical antennas. In this case, how the terminal performs downlink channel estimation is a problem to be solved.

[0139] Embodiments of the present disclosure provide a communication method, device, and storage medium for a terminal with 3 transmit antennas, to implement downlink channel estimation for a terminal with 3 transmit antennas.

[0140] In some embodiments, for a terminal with 3 transmit antennas (which can be represented as Tx), the number of receive antennas (which can be represented as Rx) is Y, and Y can be configured as an integer greater than 3. In an example, Y = 4, 6, or 8.

[0141] In some embodiments, the combination of transmit antennas (Tx) and receive antennas (Rx) of the terminal can include one of 3 transmit antennas and 4 receive antennas (3Tx / 4Rx), 3 transmit antennas and 6 receive antennas (3Tx / 6Rx), and 3 transmit antennas and 8 receive antennas (3Tx / 8Rx).

[0142] In an example, as shown in FIG. 3, FIG. 3 is a schematic diagram of a terminal radio frequency architecture provided by an embodiment of the present disclosure. In which, (a) shows a terminal radio frequency architecture of 3Tx / 4Rx, (b) shows a terminal radio frequency architecture of 3Tx / 6Rx, (c) shows a terminal radio frequency architecture of 3Tx8 / Rx, and (d) shows another terminal radio frequency architecture of 3Tx / 8Rx.

[0143] In some embodiments, the terminal radio frequency architecture of "xTx / yRx" corresponds to an antenna switching configuration denoted as "xTyR". In an example, the terminal radio frequency architecture of 3Tx / 4Rx corresponds to an antenna switching configuration denoted as "3T4R", the terminal radio frequency architecture of 3Tx / 6Rx corresponds to an antenna switching configuration denoted as "3T6R", and the terminal radio frequency architecture of 3Tx / 8Rx corresponds to an antenna switching configuration denoted as "3T8R".

[0144] In some embodiments, the terms "antenna switching configuration", "antenna switching pattern" and the like can be replaced with each other.

[0145] In some embodiments, the terms "x transmit antennas and y receive antennas", "xTx / yRx", "xTyR" and the like can be replaced with each other. In an example, "3 transmit antennas and 4 receive antennas" can be replaced by one of "3Tx / 4Rx", "3T4R". In an example, "3 transmit antennas and 6 receive antennas" can be replaced by one of "3Tx / 6Rx", "3T6R". In an example, "3 transmit antennas and 8 receive antennas" can be replaced by one of "3Tx / 8Rx", "3T8R".

[0146] As can be seen from FIG. 3, when the terminal transmits SRS, it needs to traverse all receive antennas through antenna switching (AS), which can also be referred to as antenna rotation, so as to realize downlink channel state estimation CSI.

[0147] The communication method (hereinafter referred to as communication method) for a terminal with 3 transmit antennas provided by the present disclosure will be described below in combination with different terminal radio frequency architectures.

[0148] FIG. 4 is an exemplary interaction diagram of a communication method provided by an embodiment of the present disclosure. As shown in FIG. 4, the present embodiment relates to a communication method. The communication method comprises steps S401 to S405.

[0149] In step S401, the terminal transmits second information.

[0150] In some embodiments, the network device receives the second information.

[0151] In some embodiments, the network device can receive second information.

[0152] In some embodiments, the second information can be used to indicate a capability of the terminal. In some embodiments, the second information can be used to indicate a support capability of the terminal for antenna switching.

[0153] In some embodiments, the name of the second information is not limited, which is, for example, capability information, UE capability, UE capability information, UE capability indication, function information, etc., which is not specifically limited in the embodiments of the present disclosure.

[0154] In some embodiments, the second information can be carried in a ueCapabilityInformation information element (IE). In an example, the second information can be a supported SRS-TxPortSwitch IE.

[0155] In some embodiments, the second information includes third information. The third information can be used to indicate that the function is antenna switching.

[0156] In some embodiments, the third information can be used to indicate that the function of the SRS resource set is antenna switching.

[0157] In some embodiments, the third information can be used to indicate that the use of the SRS resource set is antenna switching.

[0158] In some embodiments, the third information can be a usage IE. In an example, the value of the usage IE can be equal to “antennaSwitching”, i.e., indicating that the function is antenna switching. For example, the value of the usage IE can be in the range of {beamManagement, codebook, nonCodebook, antennaSwitching}. Then, for the terminal, the value of the usage IE in the third information can be equal to “antennaSwitching”. Of course, the third information can also be other IEs or signaling, which is not specifically limited in the embodiments of the present disclosure.

[0159] In some embodiments, the second information can include fourth information. The fourth information is used to indicate an antenna switching configuration supported by the terminal.

[0160] In some embodiments, the fourth information can be a first bitmap. The first bitmap is used to indicate one or more antenna switching configurations supported by the terminal, each of which can include a combination of x transmit antenna ports and y receive antenna ports, where x can be 1, 2 or 3, and y can be 1, 2, 3, 4 or 6. In some embodiments, the above antenna switching configuration can be denoted as "xTyR", i.e., a combination of x transmit antenna ports and y receive antenna ports. In an embodiment, the first bitmap can be indicated by a supportedSRS-TxPortSwitch3Tx information element.

[0161] In an example, for a terminal with 3 transmit antennas and 4 receive antennas (i.e., 3Tx / 4Rx), i.e., x = 3, y = 4. For the 3Tx / 4Rx radio architecture, the antenna switching configurations supported by the terminal can include at least one of the following: 1 transmit port and 1 receive port (1T1R), 2 transmit ports and 2 receive ports (2T2R), 1 transmit port and 2 receive ports (1T2R), 1 transmit port and 3 receive ports (1T3R), 1 transmit port and 4 receive ports (1T4R), 2 transmit ports and 3 receive ports (2T3R), 2 transmit ports and 4 receive ports (2T4R), 3 transmit ports and 3 receive ports (3T3R), 3 transmit ports and 4 receive ports (3T4R).

[0162] In an example, for a terminal with 3 transmit antennas and 4 receive antennas (i.e., 3Tx / 4Rx), i.e., x = 3, y = 4. For the 3Tx / 4Rx radio architecture, the antenna switching configurations supported by the terminal can include at least one of the following: 1 transmit port and 1 receive port (1T1R), 2 transmit ports and 2 receive ports (2T2R), 1 transmit port and 2 receive ports (1T2R), 1 transmit port and 3 receive ports (1T3R), 1 transmit port and 4 receive ports (1T4R), 2 transmit ports and 4 receive ports (2T4R), 3 transmit ports and 3 receive ports (3T3R), 3 transmit ports and 4 receive ports (3T4R).

[0163] In an example, for a terminal with a number of transmit antennas of 3 and a number of receive antennas of 6 (i.e., 3Tx / 6Rx), i.e., x = 3, y = 6. For the radio frequency architecture of 3Tx / 6Rx, the antenna switching configurations supported by the terminal can include at least one of the following: 1 transmit port and 1 receive port (1T1R), 2 transmit ports and 2 receive ports (2T2R), 1 transmit port and 2 receive ports (1T2R), 1 transmit port and 3 receive ports (1T3R), 1 transmit port and 4 receive ports (1T4R), 2 transmit ports and 3 receive ports (2T3R), 2 transmit ports and 4 receive ports (2T4R), 3 transmit ports and 3 receive ports (3T3R), 3 transmit ports and 4 receive ports (3T4R), 1 transmit port and 6 receive ports (1T6R), 2 transmit ports and 6 receive ports (2T6R), 3 transmit ports and 6 receive ports (3T6R).

[0164] In an example, for a terminal with a number of transmit antennas of 3 and a number of receive antennas of 6 (i.e., 3Tx / 6Rx), i.e., x = 3, y = 6. For the radio frequency architecture of 3Tx / 6Rx, the antenna switching configurations supported by the terminal can include at least one of the following: 1 transmit port and 1 receive port (1T1R), 2 transmit ports and 2 receive ports (2T2R), 1 transmit port and 2 receive ports (1T2R), 1 transmit port and 3 receive ports (1T3R), 1 transmit port and 4 receive ports (1T4R), 2 transmit ports and 4 receive ports (2T4R), 3 transmit ports and 3 receive ports (3T3R), 3 transmit ports and 4 receive ports (3T4R), 1 transmit port and 6 receive ports (1T6R), 2 transmit ports and 6 receive ports (2T6R), 3 transmit ports and 6 receive ports (3T6R).

[0165] In some embodiments, the second information can include fifth information. The fifth information is used to indicate a support capability of the terminal for an antenna switching gap (AS gap). The support capability of the terminal for the antenna switching gap can be used by the network device to configure a length of the antenna switching gap for the terminal.

[0166] In some embodiments, the support capability of the terminal for the antenna switching gap includes at least one of the following: whether the terminal supports antenna switching with a length of the antenna switching gap of 0, a supported antenna switching gap.

[0167] In an example, the antenna switching gap is a switching time required when a physical antenna or a transmit channel is switched, which is related to a subcarrier spacing. The specific value can be seen in Table 1 below.

[0168] Table 1

[0169] In some embodiments, the terminal's support capability of the antenna switching interval can be associated with a subcarrier spacing.

[0170] In some embodiments, the terminal reports to the network device whether the terminal supports antenna switching with an antenna switching interval of length 0. In some embodiments, the antenna switching interval can occupy one or more time units. The length of the antenna switching interval can be the number of time units occupied by the antenna switching interval. Then, the length of the antenna switching interval of 0 means that the number of time units occupied by the antenna switching interval is 0. In this case, the terminal does not add an antenna switching interval between adjacent sets of SR resources when transmitting SRS, so that the antenna switching can achieve no switching delay.

[0171] In some embodiments, the length of the antenna switching interval supported by the terminal includes at least one of: 0 time units, 1 time unit, 2 time units. In some embodiments, the terminal supports the antenna switching interval occupying at least one of: 0 time units, 1 time unit, 2 time units. In some embodiments, the terminal supports at least one of: the antenna switching interval occupying 0 time units, the antenna switching interval occupying 1 time unit, and the antenna switching interval occupying 2 time units.

[0172] In some embodiments, the time unit is a symbol, a cyclic prefix (CP) length, etc. In an example, the antenna switching interval supported by the terminal includes at least one of: 0 symbols, 1 symbol, 2 symbols. In an example, the terminal supports the antenna switching interval occupying at least one of: 0 symbols, 1 symbol, 2 symbols. In an example, the terminal supports at least one of: the antenna switching interval occupying 0 symbols, the antenna switching interval occupying 1 symbol, and the antenna switching interval occupying 2 symbols. In an example, the antenna switching interval supported by the terminal includes at least one of: 0 CP lengths, 1 CP length, 2 CP lengths. In an example, the terminal supports the antenna switching interval occupying at least one of: 0 CP lengths, 1 CP length, 2 CP lengths. In an example, the terminal supports at least one of: the antenna switching interval occupying 0 CP lengths, the antenna switching interval occupying 1 CP length, and the antenna switching interval occupying 2 CP lengths.

[0173] In some embodiments, the terminal can also report to the network device the number of antenna switching intervals supported by the terminal. In an example, the number of antenna switching intervals can be 0, 1, 2. In some embodiments, the number of antenna switching intervals is 0, indicating that no antenna switching interval can be added between SRS resources, so that the antenna switching can achieve no switching delay.

[0174] In some embodiments, the second information can comprise sixth information. The sixth information is used to indicate the first SRS port. In some embodiments, the sixth information can be determined by the terminal based on its hardware implementation. The sixth information can be used by the terminal and the network device to determine the port used by the terminal when sending SRS.

[0175] In some embodiments, the first SRS port is a port used by the terminal when sending SRS for antenna switching. In some embodiments, the first SRS port is a port not used by the terminal when sending SRS for antenna switching.

[0176] In some embodiments, the number of first SRS ports can be one or more. In some embodiments, when the number of first SRS ports is more than one, the numbers of the first SRS ports can be consecutive or discrete.

[0177] In some embodiments, the terminal can determine the associated first SRS resource for SRS resources of different port numbers. In this case, the sixth information can indicate the first SRS port associated with the first SRS resource of the first port number. The value of the first port number can be one or more.

[0178] In some embodiments, the sixth information can be a second bitmap. The first bitmap is used to indicate the first SRS port. In an example, the second bitmap can comprise the identity of the first SRS port.

[0179] In some embodiments, the sixth information can be a code point corresponding to the first SRS port.

[0180] In some embodiments, the second information can comprise at least one of the third information, the fourth information, the fifth information, and the sixth information.

[0181] In some embodiments, the second information can be carried in upper layer signaling. For example, the upper layer signaling can be signaling in a radio resource control (RRC) procedure.

[0182] In some embodiments, step S401 can be ignored, and in this case, the terminal and the network device can determine the second information according to the protocol.

[0183] In step S402, the network device sends the first information.

[0184] In some embodiments, the terminal receives the first information.

[0185] In some embodiments, the first information is used to indicate an SRS configuration associated with the first antenna switching configuration. In some embodiments, the first antenna switching configuration is an antenna switching configuration configured by the network device for the terminal, which can be one or more of the antenna switching configurations supported by the terminal.

[0186] In an example, for a terminal with a number of transmission antennas of 3 (i.e., a 3Tx terminal), i.e., x = 3, the first antenna switching configuration can include at least one of the following: 1 transmission port and 1 reception port (1T1R), 2 transmission ports and 2 reception ports (2T2R), 1 transmission port and 2 reception ports (1T2R), 1 transmission port and 3 reception ports (1T3R), 1 transmission port and 4 reception ports (1T4R), 2 transmission ports and 3 reception ports (2T3R), 2 transmission ports and 4 reception ports (2T4R), 3 transmission ports and 3 reception ports (3T3R), 3 transmission ports and 4 reception ports (3T4R), 1 transmission port and 6 reception ports (1T6R), 2 transmission ports and 6 reception ports (2T6R), 3 transmission ports and 6 reception ports (3T6R).

[0187] In some embodiments, the first information can include seventh information.

[0188] In some embodiments, the seventh information can be used to configure a resource type of an SRS resource.

[0189] In some embodiments, the seventh information can be used to configure a resource type of an SRS resource set.

[0190] In some embodiments, the resource type of the SRS resource set can be used to indicate a periodicity of an SRS resource in the SRS resource set.

[0191] In some embodiments, the above-mentioned resource type can include: periodic, semi-persistent, aperiodic.

[0192] In some embodiments, the seventh information can be a resourceType information element. In an example, the value range of the resourceType information element can be {periodic, semi-persistent, aperiodic}. Then, for the terminal, the value of the resourceType information element in the seventh information can be equal to any one of periodic, semi-persistent, and aperiodic. Of course, the seventh information can also be other information elements or signaling, which is not specifically limited by the embodiments of the present disclosure.

[0193] In some embodiments, in case the resource type is aperiodic (the value of the resourceType information element is aperiodic), the SRS resource set supports an extended number of SRS resource sets. In an example, the extended number of SRS resource sets can be 2. In an example, the extended number of SRS resource sets is indicated by srs-ExtensionAperiodicSRS.

[0194] In some embodiments, the first information includes eighth information. The eighth information is used to indicate a number of SRS resource sets associated with the first antenna switching configuration, where the number of SRS resource sets associated with the first antenna switching configuration is one or more. In an example, the number of SRS resource sets can be 1, 2.

[0195] In some embodiments, the number of SRS resources in different SRS resource sets can be the same or different. In some embodiments, one SRS resource set can include at least one of SRS resources with the same number of ports and SRS resources with different number of ports.

[0196] In some embodiments, the network device configures one SRS resource set for the terminal, where the SRS resource set includes N SRS resources, where N is an integer greater than or equal to 2. In an example, the SRS resource can be at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource.

[0197] In some embodiments, the network device configures multiple SRS resource sets for the terminal, where the total number of SRS resources included in the multiple SRS resource sets is N. In an example, the SRS resource can be at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource.

[0198] In some embodiments, the SRS resources included in the multiple SRS resource sets can be aperiodic type SRS resources.

[0199] In some embodiments, the network device configures 2 SRS resource sets for the terminal, one SRS resource set can include n SRS resources, and the other SRS resource set can include m SRS resources, n and m are positive integers, and n+m=N. In an example, one SRS resource set of the 2 SRS resource sets includes 3 1-port SRS resources, and the other SRS resource set includes 1 1-port SRS resource. In an example, one SRS resource set of the 2 SRS resource sets includes 2 1-port SRS resources, and the other SRS resource set includes 2 1-port SRS resources. In an example, one SRS resource set of the 2 SRS resource sets includes 1 2-port SRS resource, and the other SRS resource set includes 1 2-port SRS resource.

[0200] In some embodiments, in the N SRS resources, the SRS resources configured to be transmitted in the same time slot belong to the same SRS resource set, and the SRS resources configured to be transmitted in different time slots belong to different SRS resource sets. In an example, one SRS resource set of the 2 SRS resource sets includes 1 1-port SRS resource transmitted in one time slot, and the other SRS resource set includes 1 2-port SRS resource transmitted in another time slot.

[0201] In some embodiments, the above-mentioned SRS resources transmitted in the same time domain position can be understood as the configured SRS resources being the same time domain resources, or the SRS resources allocated on the same time domain resources.

[0202] In some embodiments, the above-mentioned SRS resources transmitted in different time domain positions can be understood as the configured SRS resources being different time domain resources, or the SRS resources allocated on different time domain resources.

[0203] In some embodiments, the multiple SRS resource sets are configured by the network device to be transmitted in different time slots.

[0204] In some embodiments, the multiple SRS resource sets are configured by the network device to be transmitted in the same time slot.

[0205] In an example, for the case of 3T4R antenna switching configuration, the network device configures 4 1-port SRS resources contained in one SRS resource set for the terminal, or configures 2 1-port SRS resources contained in one SRS resource set and 2 1-port SRS resources contained in another SRS resource set, or configures 1 1-port SRS resource contained in one SRS resource set and 3 1-port SRS resources contained in another SRS resource set. At this time, N=4.

[0206] In an example, for the case that the first antenna switching configuration is 3T4R, the network device configures the terminal with 2 two-port SRS resources contained in one SRS resource set, or 1 two-port SRS resource contained in one SRS resource set and 1 two-port SRS resource contained in another SRS resource set. At this time, N = 2.

[0207] In an example, for the case that the first antenna switching configuration is 3T4R, the network device configures the terminal with 1 one-port SRS resource and 1 three-port SRS resource contained in one SRS resource set, or 1 one-port SRS resource contained in one SRS resource set and 1 three-port SRS resource contained in another SRS resource set. At this time, N = 2.

[0208] In an example, for the case that the first antenna switching configuration is 3T3R, the network device configures the terminal with 1 three-port SRS resource contained in one SRS resource set. At this time, N = 1.

[0209] In an example, for the case that the first antenna switching configuration is 3T3R, the network device configures the terminal with 1 four-port SRS resource contained in one SRS resource set. At this time, N = 1.

[0210] In an example, for the case that the first antenna switching configuration is 3T3R, the network device configures the terminal with 1 one-port SRS resource and 1 two-port SRS resource contained in one SRS resource set, or 1 one-port SRS resource contained in one SRS resource set and 1 two-port SRS resource contained in another SRS resource set. At this time, N = 2.

[0211] In an example, for the case that the first antenna switching configuration is 2T3R, the network device configures the terminal with 2 one-port SRS resources contained in one SRS resource set, or 1 one-port SRS resource contained in one SRS resource set and 2 one-port SRS resources contained in another SRS resource set. At this time, N = 3.

[0212] In an example, for the case that the first antenna switching configuration is 2T3R, the network device configures the terminal with 1 one-port SRS resource and 1 two-port SRS resource contained in one SRS resource set, or 1 one-port SRS resource contained in one SRS resource set and 1 two-port SRS resource contained in another SRS resource set. At this time, N = 2.

[0213] In an example, for the case that the first antenna switching configuration is 3T6R, the network device configures the terminal with 6 one-port SRS resources contained in one SRS resource set, or 3 one-port SRS resources contained in one SRS resource set and 3 one-port SRS resources contained in another SRS resource set, or 2 one-port SRS resources contained in one SRS resource set and 4 one-port SRS resources contained in another SRS resource set, or 1 one-port SRS resource contained in one SRS resource set and 5 one-port SRS resources contained in another SRS resource set. At this time, N = 6.

[0214] In an example, for the case that the first antenna switching configuration is 3T6R, the network device configures the terminal with 2 three-port SRS resources contained in one SRS resource set, or 1 three-port SRS resource contained in one SRS resource set and 1 three-port SRS resource contained in another SRS resource set. At this time, N = 2.

[0215] In an example, for the case that the first antenna switching configuration is 3T6R, the network device configures the terminal with 3 two-port SRS resources contained in one SRS resource set, or 1 two-port SRS resource contained in one SRS resource set and 2 two-port SRS resources contained in another SRS resource set. At this time, N = 3.

[0216] In some embodiments, the first information can comprise ninth information.

[0217] In some embodiments, the ninth information is used to indicate a length of an antenna switching gap (AS gap) configured by the network device for the terminal. In an example, the length of the antenna switching gap can be at least one of 0 time units, 1 time unit, 2 time units. In some embodiments, the length of the antenna switching gap being 0 means that the number of time units occupied by the antenna switching gap is 0. In this case, the terminal does not add an antenna switching gap between adjacent SRS resource sets when sending SRS, so that the antenna switching can be implemented without switching delay.

[0218] In some embodiments, the ninth information is determined by the network device according to the fifth information.

[0219] In some embodiments, the first information can comprise tenth information. The tenth information is used to indicate a second SRS port. In some embodiments, the tenth information can be determined by the network device based on the sixth information. The tenth information can be used by the terminal and the network device to determine the port used by the terminal when sending SRS.

[0220] In some embodiments, the second SRS port is a port used by the network device for SRS transmission for antenna switching. In some embodiments, the second SRS port is a port not used by the network device for SRS transmission for antenna switching.

[0221] In some embodiments, the number of the second SRS port can be one or more. In some embodiments, when the number of the second SRS port is more than one, the numbers of the second SRS ports can be continuous or discrete.

[0222] In some embodiments, the network device can configure the associated second SRS resource for SRS resource with different port numbers. In this case, the tenth information can indicate the second SRS port associated with the second SRS resource with the second port number. The value of the second port number can be one or more.

[0223] In some embodiments, the first information can include at least one of the seventh information, the eighth information, the ninth information, and the tenth information.

[0224] In some embodiments, the first information can be carried in upper layer signaling. For example, the upper layer signaling can be signaling in RRC procedure.

[0225] In step S403, the terminal determines the port used for SRS transmission for antenna switching.

[0226] In some embodiments, the terminal can determine the SRS resource corresponding to the first antenna switching configuration according to the configuration of the network device. However, based on the specific implementation, the sum of the port numbers (such as p, p is a positive integer) of the SRS resources configured by the network device for the terminal can be greater than the number of the receiving port (such as y) in the first antenna switching configuration, at this time, the terminal needs to determine the port used for SRS transmission, and then determine the SRS resource for SRS transmission. In an example, the first antenna switching configuration is 3T3R, and the network device configures 1 four-port SRS resource, at this time, p = 4, y = 3, then the terminal can determine 3 ports from 4 ports, and then determine the equivalent 3-port SRS resource.

[0227] It should be noted that the "equivalent 3-port SRS resource" can be understood as a 3-port SRS resource realized by using SRS resources with other port numbers.

[0228] In some embodiments, the terminal can determine the port used for SRS transmission in the SRS resource associated with the first antenna switching configuration configured by the network device according to the preconfigured port (such as the port specified by the protocol).

[0229] In some embodiments, the terminal can determine one or more of the fixed ports of the SRS resource as the ports used for transmitting SRS according to the preconfigured ports (e.g., the ports used for transmitting SRS as specified by the protocol). In an embodiment, the terminal can determine the first y ports of the SRS resource as the ports used for transmitting SRS according to the protocol. In an embodiment, the terminal can determine the last y ports of the SRS resource as the ports used for transmitting SRS according to the protocol.

[0230] In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is one 4-port SRS resource contained in one SRS resource set. At this time, the terminal determines ports 0, 1, and 2 (e.g., SRS ports 1000, 1001, and 1002) as the ports used for actually transmitting SRS according to the protocol, and does not actually transmit port 3 (e.g., SRS port 1003). In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is two 2-port SRS resources contained in one SRS resource set, or the configured SRS resource is one 2-port SRS resource contained in one SRS resource set and one 2-port SRS resource contained in another SRS resource set. At this time, the terminal determines port 0 of the first SRS resource (i.e., one 2-port SRS resource), port 1 of the second SRS resource (i.e., another 2-port SRS resource), and port 0 of the second SRS resource (e.g., SRS port 1002) as the ports used for actually transmitting SRS according to the protocol, and does not actually transmit port 1 of the second SRS resource (e.g., SRS port 1003). In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is one 4-port SRS resource contained in one SRS resource set. At this time, the terminal determines ports 1, 2, and 3 (e.g., SRS ports 1001, 1002, and 1003) as the ports used for actually transmitting SRS according to the protocol, and does not actually transmit port 0 (e.g., SRS port 1000). In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is one 2-port SRS resource contained in one SRS resource set and one 2-port SRS resource contained in another SRS resource set. At this time, the terminal determines port 1 of the first SRS resource (e.g., SRS port 1001), ports 0 and 1 of the second SRS resource (e.g., SRS ports 1002 and 1003), and port 0 of the first SRS resource (e.g., SRS port 1000) as the ports used for actually transmitting SRS according to the protocol, and does not actually transmit port 1 of the second SRS resource.

[0231] In some embodiments, in the case that the first SRS port is the port used by the terminal for SRS transmission for antenna switching, the terminal can determine the port used for SRS transmission in the SRS resource associated with the first antenna switching configuration configured by the network device according to the first SRS port reported by the terminal (as indicated by the sixth information).

[0232] In some embodiments, the terminal can determine the first SRS port in the ports of the SRS resource as the port used for SRS transmission. In some embodiments, the number of the first SRS port can be y.

[0233] In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is one 4-port SRS resource included in one SRS resource set. The first SRS port includes port 0, port 2 and port 3 (such as SRS ports 1000, 1002, 1003), at this time, the terminal determines port 0, port 2 and port 3 as the ports actually used for SRS transmission according to the sixth information reported previously, and does not actually transmit port 1 (such as SRS port 1001). In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is two 2-port SRS resources included in one SRS resource set, or the configured SRS resource is one 2-port SRS resource included in one SRS resource set and one 2-port SRS resource included in another SRS resource set. The first SRS port includes port 0, 1 of the first SRS resource (i.e., one 2-port SRS resource) and port 0 of the second SRS resource (i.e., another 2-port SRS resource) (such as SRS ports 1000, 1001, 1002), at this time, the terminal determines port 0, 1 of the first SRS resource and port 0 of the second SRS resource as the ports actually used for SRS transmission according to the sixth information reported previously, and does not actually transmit port 1 of the second SRS resource (such as SRS port 1003).

[0234] In some embodiments, the terminal can determine the port used for SRS transmission in the SRS resource associated with the first antenna switching configuration configured by the network device according to the second SRS port configured by the network device (as indicated by the tenth information).

[0235] In some embodiments, the second SRS port is the port used by the network device for SRS transmission for antenna switching, in which case the terminal can determine the second SRS port in the ports of the SRS resource as the port used for SRS transmission. In some embodiments, the number of the second SRS port can be y.

[0236] In an example, the second antenna switching configuration is 3T3R, and the configured SRS resource is one 4-port SRS resource included in one SRS resource set. The second SRS port includes port 0, port 1 and port 3 (e.g., SRS ports 1000, 1001 and 1003). At this time, the terminal determines port 0, port 1 and port 3 as the ports actually used for SRS transmission according to the tenth information configured by the network device, and does not actually transmit port 2 (e.g., SRS port 1002). In an example, the second antenna switching configuration is 3T3R, and the configured SRS resource is two 2-port SRS resources included in one SRS resource set, or the configured SRS resource is one 2-port SRS resource included in one SRS resource set and one 2-port SRS resource included in another SRS resource set. The first SRS port includes port 0 and port 1 of the first SRS resource (i.e., one 2-port SRS resource) (e.g., SRS ports 1000 and 1001) and port 1 of the second SRS resource (i.e., another 2-port SRS resource) (e.g., SRS port 1003). At this time, the terminal determines port 0 and port 1 of the first SRS resource and port 1 of the second SRS resource as the ports actually used for SRS transmission according to the tenth information configured by the network device, and does not actually transmit port 0 of the second SRS resource (e.g., SRS port 1002).

[0237] In some embodiments, the terminal can determine the ports actually used for SRS transmission according to at least one of the preconfigured ports, the first SRS port and the second SRS port.

[0238] In some embodiments, the terminal can first determine the ports not actually used for SRS transmission, and then determine the ports actually used for SRS transmission.

[0239] In some embodiments, the terminal can determine the ports not used for SRS transmission in the SRS resource associated with the first antenna switching configuration configured by the network device according to the preconfigured ports (e.g., the ports not used for SRS transmission specified in the protocol). In some embodiments, the terminal can determine one or more fixed ports of the ports of the SRS resource as the ports not used for SRS transmission according to the preconfiguration. In an embodiment, the terminal can determine the first a ports of the ports of the SRS resource as the ports not used for SRS transmission according to the protocol. In an embodiment, the terminal can determine the last a ports of the ports of the SRS resource as the ports not used for SRS transmission according to the protocol. Wherein a is a positive integer, a = p-y.

[0240] In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is one 4-port SRS resource contained in one SRS resource set. At this time, the terminal determines port 3 (e.g., SRS port 1003) as a port not used when actually transmitting SRS according to the protocol. Correspondingly, the terminal determines ports 0, 1, and 2 (e.g., SRS ports 1000, 1001, and 1002) as ports used when actually transmitting SRS. In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is two 2-port SRS resources contained in one SRS resource set, or the configured SRS resource is one 2-port SRS resource contained in one SRS resource set and one 2-port SRS resource contained in another SRS resource set. At this time, the terminal determines port 1 (e.g., SRS port 1003) of the second SRS resource (i.e., one 2-port SRS resource) as a port not used when actually transmitting SRS according to the protocol. Correspondingly, the terminal determines port 0 and 1 (e.g., SRS ports 1000 and 1001) of the first SRS resource (i.e., another 2-port SRS resource) and port 0 (e.g., SRS port 1002) of the second SRS resource as ports used when actually transmitting SRS. In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is one 4-port SRS resource contained in one SRS resource set. At this time, the terminal determines port 0 (e.g., SRS port 1000) as a port not used when actually transmitting SRS according to the protocol. Correspondingly, the terminal determines ports 1, 2, and 3 (e.g., SRS ports 1001, 1002, and 1003) as ports used when actually transmitting SRS. In an example, the first antenna switching configuration is 3T3R, and the configured SRS resource is two 2-port SRS resources contained in one SRS resource set, or the configured SRS resource is one 2-port SRS resource contained in one SRS resource set and one 2-port SRS resource contained in another SRS resource set. At this time, the terminal determines port 0 (e.g., SRS port 1000) of the first SRS resource (i.e., one 2-port SRS resource) as a port not used when actually transmitting SRS according to the protocol. Correspondingly, the terminal determines port 1 (e.g., SRS port 1001) of the first SRS resource and ports 0 and 1 (e.g., SRS ports 1002 and 1003) of the second SRS resource (i.e., another 2-port SRS resource) as ports used when actually transmitting SRS.

[0241] In some embodiments, in the case that the terminal does not use a port in the first SRS port for reporting the SRS for antenna switching to the network device, the terminal can determine the port not used in sending the SRS in the SRS resource associated with the first antenna switching configuration configured by the network device according to the first SRS port reported by the terminal (as indicated by the sixth information).

[0242] In some embodiments, the terminal can determine the first SRS port in the ports of the SRS resource as the port not used in sending the SRS. In some embodiments, the number of the first SRS port can be a.

[0243] In an example, the first antenna switching configuration is 3T3R, and the SRS resource configured is one 4-port SRS resource included in one SRS resource set. The first SRS port includes port 3 (such as SRS port 1003), at this time, the terminal determines port 3 as the port not used in actually sending the SRS according to the sixth information reported previously, and correspondingly, determines ports 0, 1 and 2 (such as SRS ports 1000, 1001 and 1002) as the ports used in actually sending the SRS. In an example, the first antenna switching configuration is 3T3R, and the SRS resource configured is two 2-port SRS resources included in one SRS resource set, or the SRS resource configured is one 2-port SRS resource included in one SRS resource set and one 2-port SRS resource included in another SRS resource set. The first SRS port includes port 1 of the second SRS resource (i.e., one 2-port SRS resource) (such as SRS port 1003), at this time, the terminal determines port 1 of the second SRS resource as the port not used in actually sending the SRS according to the sixth information reported previously, and correspondingly, determines ports 0 and 1 of the first SRS resource (i.e., another 2-port SRS resource) (such as SRS ports 1000 and 1001) and port 0 of the second SRS resource (such as SRS port 1002) as the ports used in actually sending the SRS.

[0244] In some embodiments, the terminal can determine the port not used in sending the SRS in the SRS resource associated with the first antenna switching configuration configured by the network device according to the second SRS port configured by the network device (as indicated by the tenth information).

[0245] In some embodiments, the second SRS port is the port not used in sending the SRS for antenna switching configured by the network device, in which case, the terminal can determine the second SRS port in the ports of the SRS resource as the port not used in sending the SRS. In some embodiments, the number of the second SRS port can be a.

[0246] In an example, the second antenna switching configuration is 3T3R, and the configured SRS resource is one 4-port SRS resource included in one SRS resource set. The second SRS port includes port 2 (e.g., SRS port 1002), at this time, the terminal determines, according to the tenth information configured by the network device, that port 2 is not used in actual SRS transmission, and accordingly, determines that port 0, port 1 and port 3 (e.g., SRS ports 1000, 1001 and 1003) are used in actual SRS transmission. In an example, the second antenna switching configuration is 3T3R, and the configured SRS resource is two 2-port SRS resources included in one SRS resource set, or the configured SRS resource is one 2-port SRS resource included in one SRS resource set and one 2-port SRS resource included in another SRS resource set. The first SRS port includes port 0 of the second SRS resource (i.e., one 2-port SRS resource) (e.g., SRS port 1002), at this time, the terminal determines, according to the tenth information configured by the network device, that port 0 of the second SRS resource is not used in actual SRS transmission, and accordingly, determines that port 0 and port 1 of the first SRS resource (i.e., another 2-port SRS resource) (e.g., SRS ports 1000 and 1001) and port 1 of the second SRS resource are used in actual SRS transmission.

[0247] It should be noted that the above-mentioned pre-configured port, first SRS port and second SRS port are only examples, and other cases can also exist, which are not limited in the embodiments of the present disclosure.

[0248] In some embodiments, the terminal can determine, according to at least one of the pre-configured port, the first SRS port and the second SRS port, the port used by the terminal for SRS transmission.

[0249] In some embodiments, step S403 can be ignored, at this time, p≤y.

[0250] In step S404, the terminal adjusts the transmission power of the SRS port in the time domain position of the SRS resource based on the first parameter.

[0251] In some embodiments, the terminal can adjust the transmission power of the SRS port in the time domain position of one or more SRS resources in the N SRS resources.

[0252] In some embodiments, the SRS resource in which the adjusted SRS port is located can belong to the same SRS resource set or different SRS resource sets.

[0253] In some embodiments, the number of ports of different SRS resources can be the same or different.

[0254] In some embodiments, the N SRS resources can include at least a first SRS resource and a second SRS resource, and the number of ports of the second SRS resource is not equal to the number of ports of the first SRS resource. In some embodiments, the number of ports of the first SRS resource (denoted as N1) is less than the number of ports of the second SRS resource (denoted as N2), and the transmission power of each port in the time domain location (such as an orthogonal frequency division multiplexing (OFDM) symbol) where the first SRS resource is located is higher than the transmission power of each port in the time domain location (such as an OFDM symbol) where the second SRS resource is located, which can affect the performance of downlink channel state estimation. In some embodiments, N1 can be greater than N2, and the transmission power of each port in the symbol where the first SRS resource is located is lower than the transmission power of each port in the symbol where the second SRS resource is located, which can also affect the performance of downlink channel state estimation. Therefore, the terminal can adjust the transmission power of one or more SRS ports in different time domain locations so that the transmission power of each SRS port in the SRS resources in different time domain locations is the same, to achieve transmission power balance.

[0255] In some embodiments, the first parameter can be used to adjust the transmission power of the SRS port in the time domain location where the first SRS resource is located.

[0256] In some embodiments, the name of the first parameter is not limited, which is, for example, a power adjustment factor, a power adjustment parameter, a power optimization parameter, a power optimization factor, etc., and the embodiments of the present disclosure do not make specific limitations thereon.

[0257] In some embodiments, the first parameter is determined based on the number of ports of the SRS resource in the same SRS resource set. In some embodiments, the first parameter is determined based on N1 and N2.

[0258] In an example, the first antenna switching configuration is 3T4R, and the associated SRS resource can be one 1-port SRS resource and one 3-port SRS resource included in one SRS resource set, or can be one 1-port SRS resource included in one SRS resource set and one 3-port SRS resource included in another SRS resource set. In this case, the transmission power of the symbol where the 1-port (N1=1) SRS resource (i.e., the first SRS resource) is higher than the transmission power of each port of the symbol where the 3-port (N2=3) SRS resource (i.e., the second SRS resource) is. The transmission power of each SRS port of the symbol where the first SRS resource is is 3 times the transmission power of each SRS port of the symbol where the second SRS resource is. At this time, the value of the first parameter can be 1 / 3. Then, the terminal adjusts the transmission power of each SRS port of the symbol where the first SRS resource is to 1 / 3 of the original transmission power according to the first parameter, so that the transmission power of each SRS port of the symbol where the first SRS resource is and the transmission power of each SRS port of the symbol where the second SRS resource is are the same.

[0259] In an example, the first antenna switching configuration is 2T3R, and the associated SRS resource can be one 1-port SRS resource and one 2-port SRS resource included in one SRS resource set, or can be one 1-port SRS resource included in one SRS resource set and one 2-port SRS resource included in another SRS resource set. In this case, the transmission power of each SRS port of the symbol where the 1-port (N1=1) SRS resource (i.e., the first SRS resource) is higher than the transmission power of each SRS port of the symbol where the 2-port (N2=2) SRS resource (i.e., the second SRS resource) is. The transmission power of each SRS port of the symbol where the first SRS resource is is 2 times the transmission power of each SRS port of the symbol where the second SRS resource is. At this time, the value of the first parameter can be 1 / 2. Then, the terminal adjusts the transmission power of each SRS port of the symbol where the first SRS resource is to 1 / 2 of the original transmission power according to the first parameter, so that the transmission power of each SRS port of the symbol where the first SRS resource is and the transmission power of each SRS port of the symbol where the second SRS resource is are the same.

[0260] In an example, the first antenna switching configuration is 3T4R, and the associated SRS resource can be one 3-port SRS resource and one 1-port SRS resource in one SRS resource set, or one 3-port SRS resource in one SRS resource set and one 1-port SRS resource in another SRS resource set. In this case, the transmission power of each SRS port in the symbol where the 3-port (N1=3) SRS resource (i.e., the first SRS resource) is located is lower than the transmission power of each SRS port in the symbol where the 1-port (N2=1) SRS resource (i.e., the second SRS resource) is located. The transmission power of each SRS port in the symbol where the second SRS resource is located is 3 times the transmission power of each SRS port in the symbol where the first SRS resource is located. At this time, the first parameter can have a value of 3. Then, the terminal adjusts the transmission power of each SRS port in the symbol where the first SRS resource is located to 3 times the original transmission power, so that the transmission power of each SRS port in the symbol where the first SRS resource is located and the transmission power of each SRS port in the symbol where the second SRS resource is located are the same.

[0261] In an example, the first antenna switching configuration is 2T3R, and the associated SRS resource can be one 2-port SRS resource and one 1-port SRS resource in one SRS resource set, or one 2-port SRS resource in one SRS resource set and one 1-port SRS resource in another SRS resource set. In this case, the transmission power of each SRS port in the symbol where the 2-port (N1=2) SRS resource (i.e., the first SRS resource) is located is lower than the transmission power of each SRS port in the symbol where the 1-port (N2=1) SRS resource (i.e., the second SRS resource) is located. The transmission power of each SRS port in the symbol where the second SRS resource is located is 2 times the transmission power of each SRS port in the symbol where the first SRS resource is located. At this time, the first parameter can have a value of 2. Then, the terminal adjusts the transmission power of each SRS port in the symbol where the first SRS resource is located to 2 times the original transmission power, so that the transmission power of each SRS port in the symbol where the first SRS resource is located and the transmission power of each SRS port in the symbol where the second SRS resource are the same.

[0262] In an example, the terminal can adjust the transmission power of the SRS port in the time domain location where the first SRS resource is located according to the following formula (1):

[0263] wherein a is the first parameter, N ap2N represents the number of ports of another SRS resource in the plurality of SRS resources, which is different from the number of ports of one SRS resource. For example, in the case of N1=3 and N2=1, N ap2 =3, or N ap2 =1. For example, in the case of N1=1 and N2=2, N ap2 =1, or N ap2 =2.

[0264] In some embodiments, step S404 can be ignored, and in this case, the number of ports of different SRS resources in the same SRS resource set is the same.

[0265] In step S405, the terminal transmits SRS on N SRS resources.

[0266] In some embodiments, the network device receives SRS on N SRS resources.

[0267] In some embodiments, the terminal transmits SRS on N SRS resources according to the first information.

[0268] In some embodiments, the terminal transmits SRS on N SRS resources according to the adjusted transmit power. In some embodiments, the terminal transmits SRS on N SRS resources according to the adjusted transmit power according to the first information.

[0269] In some embodiments, the SRS is used for downlink channel estimation. In an example, the SRS is used to obtain CSI.

[0270] In some embodiments, the terminal transmits SRS on N SRS resources.

[0271] In some embodiments, the N SRS resources belong to one SRS resource set.

[0272] In some embodiments, the terminal transmits SRS on N SRS resources in one SRS resource set. In an example, N=1, 2, 3, or 4.

[0273] In some embodiments, the first antenna switching configuration is 3T3R, and N=1, 2, or 3.

[0274] In some embodiments, the first antenna switching configuration is 3T3R, and N=3. The terminal transmits SRS corresponding to 3 antenna ports on 3 one-port SRS resources in one SRS resource set. Referring to (a) in FIG. 5, the 3 one-port SRS resources are resource 0, resource 1, and resource 2, respectively.

[0275] In some embodiments, referring still to (a) in FIG. 5, when the terminal transmits SRS on 3 one-port SRS resources in one SRS resource set, one antenna switching gap can be added between adjacent SRS resources. In an example, one SRS resource set includes 3 one-port SRS resources, and the terminal needs two antenna switching times between the 3 one-port SRS resources, so 2 antenna switching gaps need to be added.

[0276] In some embodiments, 2 antenna switching gaps need to be added between 3 one-port SRS resources when the terminal actually transmits SRS, referring to (a) in FIG. 5, it can be understood that: in the SRS resource set, one antenna switching gap (gap0) is added between the last symbol of the first one-port SRS resource (resource 0) and the first symbol of the second one-port SRS resource (resource 1), and one antenna switching gap (gap1) is added between the last symbol of the second one-port SRS resource (resource 1) and the first symbol of the third one-port SRS resource (resource 2). Then, the terminal first transmits SRS through resource 0 in the SRS resource set, at this time, antenna switching occurs, and the terminal adds gap0 after the last symbol of resource 0. Then, the terminal transmits SRS on resource 1 again, at this time, antenna switching occurs. The terminal adds gap1 after the last symbol of resource 1. Then, the terminal transmits SRS on resource 2 again.

[0277] In some embodiments, the first antenna switching configuration is 3T3R, N=2. The terminal transmits SRS corresponding to 3 antenna ports on one one-port SRS resource and one two-port SRS resource in one SRS resource set. Referring to (b) in FIG. 5, the one one-port SRS resource is resource 0, and the one two-port SRS resource is resource 1.

[0278] In some embodiments, when SRS is transmitted on one one-port SRS resource and one two-port SRS resource in one SRS resource set, one antenna switching gap can be added between adjacent SRS resources. In an example, one SRS resource set includes one one-port SRS resource and one two-port SRS resource, and the terminal needs one antenna switching time between the one-port SRS resource and the two-port SRS resource, so one antenna switching gap needs to be added.

[0279] In some embodiments, when the terminal actually transmits the SRS between the 1-port SRS resource and the 2-port SRS resource, 1 antenna switching gap needs to be added, as shown in (b) of FIG. 5, which can be understood as: 1 antenna switching gap (gapO) is added between the last symbol of the 1-port SRS resource (resourceO) in the SRS resource set and the 1st symbol of the 2-port SRS resource (resource 1). Then, the terminal first transmits SRS through resourceO in the SRS resource set, at this time, antenna switching occurs, and the terminal adds gapO after the last symbol of resourceO. Then, the terminal transmits SRS on resource 1 again.

[0280] In some embodiments, the first antenna switching configuration is 3T3R, N = 1. The terminal transmits SRS corresponding to 3 antenna ports on 1 3-port SRS resource in 1 SRS resource set. Referring to (c) in FIG. 5, the 1 3-port SRS resource is resourceO.

[0281] In some embodiments, resourceO can be a 3-port SRS resource, or an equivalent 3-port SRS resource in step S403.

[0282] In some examples, the first antenna switching configuration is 3T4R, N = 1, 2 or 4.

[0283] In some embodiments, the first antenna switching configuration is 3T4R, N = 4. The terminal transmits SRS corresponding to 4 antenna ports on 4 1-port SRS resources in 1 SRS resource set. Referring to (d) in FIG. 5, the 4 1-port SRS resources are resourceO, resource 1, resource 2 and resource 3 respectively.

[0284] In some embodiments, still referring to (d) in FIG. 5, when the terminal transmits SRS on 4 1-port SRS resources in 1 SRS resource set, 1 antenna switching gap can be added between adjacent SRS resources. In an example, 1 SRS resource set includes 4 1-port SRS resources, and the terminal needs three times of antenna switching time between the 4 1-port SRS resources, therefore, 3 antenna switching gaps need to be added.

[0285] In some embodiments, 3 antenna switching gaps are needed when sending SRS in actual terminal among 4 1-port SRS resources, see (d) in FIG. 5, which can be understood as follows: in the SRS resource set, 1 antenna switching gap (gap0) is added between the last symbol of the 1st 1-port SRS resource (resource 0) and the 1st symbol of the 2nd 1-port SRS resource (resource 1), 1 antenna switching gap (gap1) is added between the last symbol of the 2nd 1-port SRS resource (resource 1) and the 1st symbol of the 3rd 1-port SRS resource (resource 2), and 1 antenna switching gap (gap2) is added between the last symbol of the 3rd 1-port SRS resource (resource 2) and the 1st symbol of the 4th 1-port SRS resource (resource 3). Then, the terminal first sends SRS through resource 0 in the SRS resource set, at this time, antenna switching occurs, and the terminal adds gap0 after the last symbol of resource 0. Then, the terminal sends SRS on resource 1 again, at this time, antenna switching occurs. The terminal adds gap1 after the last symbol of resource 1. Then, the terminal sends SRS on resource 2 again, at this time, antenna switching occurs, and the terminal adds gap2 after the last symbol of resource 2. Then, the terminal sends SRS on resource 3 again.

[0286] In some embodiments, the first antenna switching configuration is 3T4R, N=2. The terminal sends SRS corresponding to 4 antenna ports on 1 1-port SRS resource and 1 3-port SRS resource in 1 SRS resource set. See (b) in FIG. 5, 1 1-port SRS resource is resource 0, and 1 3-port SRS resource is resource 1.

[0287] In some embodiments, when sending SRS on 1 1-port SRS resource and 1 3-port SRS resource in 1 SRS resource set, 1 antenna switching gap can be added between adjacent SRS resources. In an example, 1 SRS resource set includes 1 1-port SRS resource and 1 3-port SRS resource, and the terminal needs 1 antenna switching time between 1-port SRS resource and 3-port SRS resource, so 1 antenna switching gap needs to be added.

[0288] In some embodiments, one antenna switching gap is needed when the terminal actually transmits SRS between the 1-port SRS resource and the 2-port SRS resource, as shown in (b) of FIG. 5, which can be understood as follows: one antenna switching gap (gapO) is added between the last symbol of the 1-port SRS resource (resourceO) in the SRS resource set and the first symbol of the 3-port SRS resource (resource 1). Then, the terminal transmits SRS through resourceO in the SRS resource set first, at which time antenna switching occurs, and the terminal adds gapO after the last symbol of resourceO. Then, the terminal transmits SRS on resource 1.

[0289] In some embodiments, the first antenna switching configuration is 3T4R, N = 2. The terminal transmits SRS corresponding to 4 antenna ports on 2 2-port SRS resources in one SRS resource set. Still referring to (b) of FIG. 5, the 2 2-port SRS resources are resourceO and resource 1, respectively.

[0290] In some embodiments, one antenna switching gap can be added between adjacent SRS resources when SRS is transmitted on 2 2-port SRS resources in one SRS resource set. In one example, one SRS resource set includes 2 2-port SRS resources, and the terminal needs one antenna switching time between the 2 2-port SRS resources, so one antenna switching gap needs to be added.

[0291] In some embodiments, one antenna switching gap is needed when the terminal actually transmits SRS between the 2 2-port SRS resources, as shown in (b) of FIG. 5, which can be understood as follows: one antenna switching gap (gapO) is added between the last symbol of the first 2-port SRS resource (resourceO) in the SRS resource set and the first symbol of the second 2-port SRS resource (resource 1). Then, the terminal transmits SRS through resourceO in the SRS resource set first, at which time antenna switching occurs, and the terminal adds gapO after the last symbol of resourceO. Then, the terminal transmits SRS on resource 1.

[0292] In some embodiments, the first antenna switching configuration is 3T4R, N = 1. The terminal transmits SRS corresponding to 4 antenna ports on one 4-port SRS resource in one SRS resource set. Referring to (c) of FIG. 5, the one 4-port SRS resource is resourceO.

[0293] In some examples, the first antenna switching configuration is 2T3R, N = 1 or 3.

[0294] In some embodiments, the first antenna switching configuration is 2T3R, N=3. The terminal transmits SRSs corresponding to 3 antenna ports on 3 one-port SRS resources in one SRS resource set. Still referring to (a) in FIG. 5, the 3 one-port SRS resources are resource 0, resource 1, and resource 2, respectively.

[0295] In some embodiments, still referring to (a) in FIG. 5, when the terminal transmits SRSs on 3 one-port SRS resources in one SRS resource set, one antenna switching gap can be added between adjacent SRS resources. In an example, one SRS resource set includes 3 one-port SRS resources, and the terminal needs two antenna switching times between the 3 one-port SRS resources, thus, 2 antenna switching gaps need to be added.

[0296] In some embodiments, 2 antenna switching gaps need to be added between 3 one-port SRS resources when the terminal actually transmits SRSs, as shown in (a) in FIG. 5, it can be understood that: one antenna switching gap (gap0) is added between the last symbol of the first one-port SRS resource (resource 0) and the first symbol of the second one-port SRS resource (resource 1) in the SRS resource set, and one antenna switching gap (gap1) is added between the last symbol of the second one-port SRS resource (resource 1) and the first symbol of the third one-port SRS resource (resource 2) in the SRS resource set. Then, the terminal first transmits SRSs through resource 0 in the SRS resource set, at this time, antenna switching occurs, and the terminal adds gap0 after the last symbol of resource 0. Then, the terminal transmits SRSs on resource 1 again, at this time, antenna switching occurs. The terminal adds gap1 after the last symbol of resource 1. Then, the terminal transmits SRSs on resource 2 again.

[0297] In some embodiments, the first antenna switching configuration is 2T3R, N=2. The terminal transmits SRSs corresponding to 3 antenna ports on one one-port SRS resource and one two-port SRS resource in one SRS resource set. Referring to (b) in FIG. 5, the one one-port SRS resource is resource 0, and the one two-port SRS resource is resource 1.

[0298] In some embodiments, when SRSs are transmitted on one one-port SRS resource and one two-port SRS resource in one SRS resource set, one antenna switching gap can be added between adjacent SRS resources. In an example, one SRS resource set includes one one-port SRS resource and one two-port SRS resource, and the terminal needs one antenna switching time between the one-port SRS resource and the two-port SRS resource, thus, one antenna switching gap needs to be added.

[0299] In some embodiments, one antenna switching time is needed between the 1-port SRS resource and the 2-port SRS resource, thus, one antenna switching gap is needed to be added, as shown in (b) of FIG. 5, which can be understood as: one antenna switching gap (gapO) is added between the last symbol of the 1-port SRS resource (resourceO) of the SRS resource set and the first symbol of the 2-port SRS resource (resource1). Then, the terminal first transmits SRS through resourceO in the SRS resource set, at this time, antenna switching occurs, and the terminal adds gapO after the last symbol of resourceO. Then, the terminal transmits SRS on resource1 again.

[0300] In some embodiments, 2T3R is a fallback configuration of 3T3R.

[0301] In some embodiments, the above adding one antenna switching gap between adjacent SRS resources can be understood as adding one antenna switching gap between the last symbol of the ith SRS resource and the first symbol of the (i+1)th SRS resource in one SRS resource set, i is an integer less than or equal to N-1.

[0302] In some embodiments, the N SRS resources belong to multiple SRS resource sets.

[0303] In some embodiments, when the terminal transmits SRS on multiple SRS resource sets, and the multiple SRS resource sets are scheduled to be transmitted on different time slots, the terminal does not need to add an antenna switching gap.

[0304] In some embodiments, when the terminal transmits SRS on multiple SRS resource sets, no antenna switching gap is needed between SRS resource sets scheduled to be transmitted on different time slots.

[0305] In some embodiments, when the terminal transmits SRS on multiple SRS resource sets, and the multiple SRS resource sets are scheduled to be transmitted on the same time slot, the terminal can add one antenna switching gap between adjacent SRS resource sets.

[0306] In some embodiments, when the terminal transmits SRS on multiple SRS resource sets, one antenna switching gap is needed between SRS resource sets scheduled to be transmitted on the same time slot.

[0307] In some embodiments, 1 antenna switching gap is added between adjacent SRS resource sets, which can be understood as that 1 antenna switching gap is added between the last symbol of the last SRS resource in the kth SRS resource set in multiple SRS resource sets sent in the same slot and the 1st symbol of the 1st SRS resource in the (k+1)th SRS resource set, the kth SRS resource set is adjacent to the (k+1)th SRS resource set, and k is a positive integer.

[0308] In the embodiments of the present disclosure, the terminal with 3 transmitting antennas sends SRS on N SRS resources in one or more resource sets configured by the network device according to the first antenna switching configuration associated with the SRS configuration configured by the network device, so as to enable the network device to obtain CSI according to the SRS, thereby realizing estimation of the downlink channel.

[0309] The communication method related to the embodiments of the present disclosure can include at least one of steps S401 to S405. For example, step S401 can be implemented as an independent embodiment. For example, step S402 can be implemented as an independent embodiment. For example, step S403 can be implemented as an independent embodiment. For example, step S404 can be implemented as an independent embodiment. For example, step S405 can be implemented as an independent embodiment. For example, a combination of steps S402 and S405 can be implemented as an independent embodiment. For example, a combination of steps S401 to S402 and S405 can be implemented as an independent embodiment. For example, a combination of steps S402 to S403 and S405 can be implemented as an independent embodiment. For example, a combination of steps S402 and S404 to S405 can be implemented as an independent embodiment. For example, a combination of steps S401 to S403 and S405 can be implemented as an independent embodiment. For example, a combination of steps S402 to S405 can be implemented as an independent embodiment. For example, a combination of steps S401 to S402 and S404 to S405 can be implemented as an independent embodiment. For example, a combination of steps S401 to S405 can be implemented as an independent embodiment. It should be noted that one or more steps in steps S401 to S405 constitute possible independent embodiments, but are not limited thereto.

[0310] In some embodiments, step S401 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0311] In some embodiments, step S403 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0312] In some embodiments, step S404 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0313] In some embodiments, step S403 and step S404 can be performed simultaneously or sequentially, and the present disclosure does not make specific limitations on this.

[0314] In some embodiments, the terms such as "single-port SRS resource", "1-port SRS resource" and the like can be replaced with each other.

[0315] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", "chip" and the like can be replaced with each other.

[0316] In some embodiments, the terms such as "uplink", "uplink", "physical uplink" and the like can be replaced with each other, the terms such as "downlink", "downlink", "physical downlink" and the like can be replaced with each other, and the terms such as "side", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct connection link", "direct connection", "direct connection link communication" and the like can be replaced with each other.

[0317] In some embodiments, the terms such as "DCI", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like can be replaced with each other.

[0318] In some embodiments, the terms such as "physical downlink shared channel (PDSCH)", "DL data" and the like can be replaced with each other, and the terms such as "PUSCH", "UL data" and the like can be replaced with each other.

[0319] In some embodiments, the terms “radio,” “wireless,” “radio access network” (RAN), “access network” (AN), “RAN-based,” and the like can be replaced with each other.

[0320] In some embodiments, the terms “moment in time,” “point in time,” “time,” “time position,” and the like can be replaced with each other, and the terms “duration,” “time period,” “time window,” “window,” “time,” and the like can be replaced with each other.

[0321] In some embodiments, the terms “resource block” (RB), “physical resource block” (PRB), “sub-carrier group” (SCG), “resource element group” (REG), “PRB pair,” “RB pair,” “resource element” (RE), “sub-carrier,” and the like can be replaced with each other.

[0322] In some embodiments, the terms “precoding”, “precoder”, “weight”, “precoding weight”, “quasi-co-location (QCL)”, “transmission configuration indication (TCI) state”, “spatial relation”, “spatial domain filter”, “transmission power”, “phase rotation”, “antenna port”, “antenna port group”, “layer”, “the number of layers”, “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angular degree”, “antenna”, “antenna element”, “panel”, and the like can be replaced with each other.

[0323] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, “transmission time interval (TTI)”, and the like can be replaced with each other.

[0324] In some embodiments, the terms “acquire”, “obtain”, “get”, “receive”, “transmit”, “bidirectional transmission”, “transmit and / or receive” can be replaced with each other, which can be interpreted as receiving from other subjects, acquiring from protocols, acquiring from higher layers, obtaining by oneself, implementing autonomously, and the like.

[0325] In some embodiments, the terms “transmit”, “emit”, “report”, “issue”, “transmit”, “bidirectional transmission”, “transmit and / or receive”, and the like can be replaced with each other.

[0326] In some embodiments, the terms "certain", "preset", "pre-set", "set", "indicated", "certain", "arbitrary", "first", and the like can be replaced with each other, and "certain A", "preset A", "pre-set A", "set A", "indicated A", "certain A", "arbitrary A", "first A" can be interpreted as A predetermined in a protocol or the like, or A obtained by setting, configuration, or indication, or a specific A, a certain A, an arbitrary A, or a first A, but are not limited thereto.

[0327] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited thereto.

[0328] As shown in FIG. 6A, FIG. 6A is a flow diagram of a method of performing communication at a terminal according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to a communication method performed by a terminal 101 in a communication system 100. The communication method of the embodiment of the present disclosure includes steps S6101 to S6105.

[0329] In step S6101, second information is transmitted.

[0330] The optional implementation of step S6101 can refer to the optional manner of step S401 of FIG. 4 and other associated parts in the embodiments related to FIG. 4, which will not be repeated here.

[0331] In some embodiments, the terminal transmits the second information to the network device, but is not limited thereto, and can transmit the second information to other subjects.

[0332] In step S6102, first information is received.

[0333] The optional implementation of step S6102 can refer to the optional manner of step S402 of FIG. 4 and other associated parts in the embodiments related to FIG. 4, which will not be repeated here.

[0334] In some embodiments, the terminal receives the first information transmitted by the network device, but is not limited thereto, and can receive the first information transmitted by other subjects.

[0335] In step S6103, a port used for SRS transmission for antenna switching is determined.

[0336] The optional implementation of step S6103 can refer to the optional implementation of step S403 in FIG. 4 and other associated parts in the embodiments involved in FIG. 4, which will not be repeated here.

[0337] In step S6104, based on the first parameter, the transmission power of the SRS port in the time domain position of the SRS resource is adjusted.

[0338] The optional implementation of step S6104 can refer to the optional implementation of step S404 in FIG. 4 and other associated parts in the embodiments involved in FIG. 4, which will not be repeated here.

[0339] In step S6105, the SRS is sent on the N SRS resources.

[0340] The optional implementation of step S6105 can refer to the optional implementation of step S405 in FIG. 4 and other associated parts in the embodiments involved in FIG. 4, which will not be repeated here.

[0341] In some embodiments, the terminal sends the SRS to the network device, but is not limited thereto, and other subjects can also send the SRS.

[0342] The communication method involved in the embodiments of the present disclosure can include at least one of steps S6101 to S6105. For example, step S6101 can be implemented as an independent embodiment. For example, step S6102 can be implemented as an independent embodiment. For example, step S6103 can be implemented as an independent embodiment. For example, step S6104 can be implemented as an independent embodiment. For example, step S6105 can be implemented as an independent embodiment. For example, the combination of step S6102 and step S6105 can be implemented as an independent embodiment. For example, the combination of steps S6101 to S6102 and step S6105 can be implemented as an independent embodiment. For example, the combination of steps S6102 to S403 and step S6105 can be implemented as an independent embodiment. For example, the combination of step S6102 and step 404 to step S6105 can be implemented as an independent embodiment. For example, the combination of steps S6101 to S403 and step S6105 can be implemented as an independent embodiment. For example, the combination of steps S6102 to S6105 can be implemented as an independent embodiment. For example, the combination of steps S6101 to step 402 and steps S6104 to S6105 can be implemented as an independent embodiment. For example, the combination of steps S6101 to step 405 can be implemented as an independent embodiment. It should be noted that one or more steps in steps S6101 to S6105 constitute possible independent embodiments, but are not limited thereto.

[0343] In some embodiments, step S6101 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0344] In some embodiments, step S6103 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0345] In some embodiments, step S6104 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0346] In some embodiments, step S6103 and step S6104 can be executed simultaneously or sequentially, and the present embodiment does not make specific limitations on this.

[0347] As shown in FIG. 6B, FIG. 6B is a flow diagram of a method for performing communication on the network device side according to an embodiment of the present disclosure. The present embodiment relates to a communication method, which is performed by the network device 102 in the communication system 100. The communication method of the present embodiment includes steps S6201 to S6203.

[0348] In step S6201, second information is received.

[0349] The optional implementation of step S6201 can refer to the optional manner of step S401 in FIG. 4 and other associated parts in the embodiments involved in FIG. 4, which will not be repeated here.

[0350] In some embodiments, the network device receives the second information sent by the terminal, but is not limited thereto, and can also receive the second information sent by other subjects.

[0351] In step S6202, first information is sent.

[0352] The optional implementation of step S6202 can refer to the optional manner of step S402 in FIG. 4 and other associated parts in the embodiments involved in FIG. 4, which will not be repeated here.

[0353] In some embodiments, the network device sends the first information to the terminal, but is not limited thereto, and can also send the first information to other subjects.

[0354] In step S6203, SRS is received on N SRS resources.

[0355] The optional implementation of step S6203 can refer to the optional manner of step S405 in FIG. 4 and other associated parts in the embodiments involved in FIG. 4, which will not be repeated here.

[0356] In some embodiments, the network device receives the SRS sent by the terminal, but is not limited thereto, and can also receive the SRS sent by other subjects.

[0357] The communication method related to the embodiments of the present disclosure can include at least one of steps S6201 to S6203. For example, step S6201 can be implemented as an independent embodiment. For example, step S6202 can be implemented as an independent embodiment. For example, step S6203 can be implemented as an independent embodiment. For example, a combination of steps S6202 and S6203 can be implemented as an independent embodiment. For example, a combination of steps S6201 to S6203 can be implemented as an independent embodiment. It should be noted that one or more of steps S6201 to S6203 constitute possible independent embodiments, but are not limited thereto.

[0358] In some embodiments, step S6201 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0359] In some embodiments, step S6203 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0360] As shown in FIG. 7A, FIG. 7A is another flow diagram of a communication method performed by a terminal according to an embodiment of the present disclosure. The embodiments of the present disclosure relate to a communication method performed by a terminal 101 in a communication system 100. The communication method of the embodiments of the present disclosure includes steps S7101 to S7102.

[0361] In step S7101, first information is received.

[0362] The optional implementation of step S7101 can refer to the optional manner of step S402 of FIG. 4 and other associated parts in the embodiments related to FIG. 4, which will not be described here.

[0363] In some embodiments, the terminal receives the second information sent by the network device, but is not limited thereto, and can also receive the second information sent by other subjects.

[0364] In step S7102, an SRS is sent on N SRS resources.

[0365] The optional implementation of step S7102 can refer to the optional manner of step S405 of FIG. 4 and other associated parts in the embodiments related to FIG. 4, which will not be described here.

[0366] In some embodiments, the terminal sends the SRS to the network device, but is not limited thereto, and can also send the SRS to other subjects.

[0367] As shown in FIG. 7B, FIG. 7B is another flow diagram of a method for performing communication on a network device side according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to a method for communication, which is performed by the network device 102 in the communication system 100. The method for communication of the embodiment of the present disclosure includes steps S7201-S7202.

[0368] In step S7201, the first information is transmitted.

[0369] The optional implementation of step S7201 can refer to the optional implementation of step S402 of FIG. 4 and other associated parts in the embodiments related to FIG. 4, which will not be repeated here.

[0370] In some embodiments, the network device transmits the first information to the terminal, but is not limited thereto, and the first information can also be transmitted by other subjects.

[0371] In step S7202, the SRS is received on the N SRS resources.

[0372] The optional implementation of step S7202 can refer to the optional implementation of step S405 of FIG. 4 and other associated parts in the embodiments related to FIG. 4, which will not be repeated here.

[0373] In some embodiments, the network device receives the SRS transmitted by the terminal, but is not limited thereto, and the SRS transmitted by other subjects can also be received.

[0374] In some embodiments, the above method can include the method described in the above embodiments related to the terminal side, the network device side, etc., which will not be repeated here.

[0375] In the following, the embodiments of the present disclosure are exemplarily described through specific embodiments.

[0376] For a terminal with a number of transmitting antennas of 3 (3Tx terminal), the SRS transmission method is as follows:

[0377] In some embodiments, when the terminal supports the 3T4R antenna switching configuration, one of the following SRS configuration schemes is supported, and the 1 SRS resource set can be configured to include the following SRS resources:

[0378] Case one: 1 1-port SRS resource and 1 3-port SRS resource.

[0379] Case two: 2 2-port SRS resources.

[0380] Case three: 4 one-port SRS resources.

[0381] In some embodiments, for case one, the transmission power of the symbol where the one-port SRS resource is located is higher than the transmission power of the symbol where each port SRS resource of the three-port SRS resource is located according to the protocol, that is, a power imbalance occurs, which affects the estimation performance of the downlink CSI, so the corresponding optimization method needs to be considered, see formula (1) above. By adding a power adjustment factor, the transmission power of the SRS port corresponding to the SRS resource is adjusted to 1 / 3 of the existing defined transmission. Wherein, a is the number of SRS ports corresponding to the SRS resource with different number of other ports in the same SRS resource set.

[0382] In some embodiments, when the terminal supports the 3T3R antenna switching configuration, one of the following SRS configuration schemes is considered, and 1 SRS resource set can be configured to include the following SRS resources:

[0383] Case four: 1 three-port SRS resource.

[0384] In some embodiments, a new three-port SRS resource is defined.

[0385] In some embodiments, an equivalent three-port SRS resource is defined, that is, a four-port SRS resource is configured, and the last SRS antenna port is fixed not to be used.

[0386] In some embodiments, the terminal supports the 3T3R antenna switching configuration, but the terminal currently uses 4RX, so if the current fixed three-port SRS is used to realize the SRS configuration of the antenna switching, the situation of not supporting good port selection may occur, at this time, the following can be considered: define an equivalent three-port SRS resource, that is, configure a four-port SRS resource, and determine which SRS antenna port is not used based on at least one of the following ways:

[0387] Method one: the terminal reports the SRS port used / not used for AS SRS transmission.

[0388] Method two: the network configures the SRS port actually transmitted / not transmitted for AS SRS transmission.

[0389] In some embodiments, when the 3T3R fallback configuration supports 2T3R, the following SRS resource configuration method is considered, and 1 SRS resource set can be configured to include the following SRS resources:

[0390] Case five: 1 one-port SRS resource + 1 two-port SRS resource.

[0391] Case six: 3 1-poort SRS resources.

[0392] In some embodiments, for the case of case five, power imbalance can occur due to the high transmission power of the symbol where the single-port resource is located, so the SRS port transmission power needs to be adjusted to the existing 1 / 2 by adding a power adjustment factor for transmission.

[0393] In some embodiments, the antenna switching interval can be 0, 1, 2 symbols based on the capability of the terminal and / or configured by the base station.

[0394] In the embodiments of the present disclosure, part or all of the steps, and optional implementation manners thereof, can be combined with part or all of the steps in other embodiments, or can be combined with optional implementation manners of other embodiments.

[0395] The embodiments of the present disclosure also provide a communication apparatus for implementing any of the above methods. For example, the embodiments of the present disclosure also provide another communication apparatus, which includes units or modules for implementing the steps performed by the terminal in any of the above methods. For example, the embodiments of the present disclosure also provide another communication apparatus, which includes units or modules for implementing the steps performed by the network device in any of the above methods.

[0396] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to implement any of the above methods or realize the functions of the units or modules of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship of elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules. All units or modules of the above apparatus can be implemented in the form of processor calling software, or all units or modules can be implemented in the form of hardware circuit, or part of the units or modules are implemented in the form of processor calling software, and the remaining part is implemented in the form of hardware circuit.

[0397] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit, a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), etc. In another implementation, the processor can implement certain functions through a logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by a special-purpose integrated circuit or a programmable logic device, such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads an instruction to implement the functions of the above part or all units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0398] FIG. 8A is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 8A, the terminal 101 can include a transceiver module 8101. In some embodiments, the transceiver module 8101 can be configured to receive first information, the first information being used to indicate an SRS configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, and the function of the SRS resource set being configured as antenna switching; according to the first information, transmit SRS on N SRS resources in the one or more SRS resource sets, N being a positive integer; wherein each of the N SRS resources includes at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource. In some embodiments, the transceiver module 8101 can be configured to perform at least one of the communication steps (for example, steps S401, S402, S405) of transmitting and / or receiving performed by the terminal 101 in any of the above methods, and details are not described herein again. In some embodiments, the terminal 101 further includes a processing module 8102. In some embodiments, the processing module 8102 can be configured to perform at least one of the steps (for example, steps S403, S404) performed by the terminal 101 in any of the above methods, in addition to the communication steps such as transmitting and / or receiving, and details are not described herein again.

[0399] FIG. 8B is a structural schematic diagram of a network device, provided by an embodiment of the present disclosure. As shown in FIG. 8B, the network device 102 can include a transceiver module 8201. In some embodiments, the transceiver module 8201 can be configured to transmit first information, the first information being used to indicate an SRS configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the SRS resource sets being configured to be used for antenna switching; receive SRSs on N SRS resources in the one or more SRS resource sets, N being a positive integer; and wherein each of the N SRS resources includes at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource, the terminal having 3 transmission antennas. In some embodiments, the transceiver module 8201 can be configured to perform at least one of the communication steps (for example, the steps S401, S402, S405) of transmitting and / or receiving and the like performed by the network device 102 in any of the above methods, which will not be described herein again. In some embodiments, the network device 102 further includes a processing module 8201. In some embodiments, the processing module 8201 can be configured to perform at least one of the steps (for example, the steps S403, S404) other than the communication steps of transmitting and / or receiving and the like performed by the network device 102 in any of the above methods, which will not be described herein again.

[0400] In some embodiments, the transceiver module can include a transmitting module and / or a receiving module. The transmitting module and the receiving module can be separate or integrated together. Alternatively, the transceiver module can be mutually replaced with a transceiver.

[0401] As shown in FIG. 9A, FIG. 9A is a structural schematic diagram of a communication device, provided by an embodiment of the present disclosure. The communication device 9100 can be a network device (for example, an access network device), can be a terminal (for example, a user equipment or the like), can be a chip, a chip system, or a processor supporting the network device to implement any of the above methods, and can be a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 9100 can be used to implement the methods described in the above method embodiments, and specific reference can be made to the descriptions in the above method embodiments.

[0402] In some embodiments, the communication device 9100 includes one or more processors 9101. The processor 9101 can be a general processor or a special purpose processor, etc., for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, the central processing unit can be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. Optionally, the communication device 9100 is configured to perform any of the above methods. Optionally, the one or more processors 9101 are configured to invoke instructions to cause the communication device 9100 to perform any of the above methods.

[0403] In some embodiments, the communication device 9100 further includes one or more transceivers 9102. When the communication device 9100 includes one or more transceivers 9102, the transceiver 9102 performs at least one of the communication steps (e.g., step S301, but not limited to) in the above methods, such as transmitting and / or receiving. In an optional embodiment, the transceiver 9102 can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be replaced with each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0404] In some embodiments, the communication device 9100 further includes one or more memories 9103 for storing data. Optionally, all or part of the memory 9103 can also be outside the communication device 9100. In an optional embodiment, the communication device 9100 can include one or more interface circuits 9104. Optionally, the interface circuit 9104 is connected to the memory 9103, and the interface circuit 9104 can be used to receive data from the memory 9103 or other devices, and can be used to send data to the memory 9103 or other devices. For example, the interface circuit 9104 can read data stored in the memory 9103 and send the data to the processor 9101.

[0405] The communication device 9100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 9100 described in the present disclosure is not limited thereto, and the structure of the communication device 9100 can not be limited by FIGS. 8A and 8B. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, and the like; (6) other devices, and the like.

[0406] As shown in FIG. 9B, FIG. 9B is a schematic diagram of a structure of a chip according to an embodiment of the present disclosure. For the case that the communication device 9100 can be a chip or a chip system, a schematic diagram of a structure of a chip 9200 can be referred to as shown in FIG. 9B, but is not limited thereto.

[0407] In some embodiments, the chip 9200 includes one or more processors 9201. The chip 9200 is configured to perform any of the above methods.

[0408] In some embodiments, the chip 9200 further includes one or more interface circuits 9202. Optionally, the terms interface circuit, interface, transceiver pin, and the like can be replaced with each other. In some embodiments, the chip 9200 further includes one or more memories 9203 for storing data. Optionally, all or part of the memory 9203 can be outside the chip 9200. Optionally, the interface circuit 9202 is connected with the memory 9203, and the interface circuit 9202 can be configured to receive data from the memory 9203 or other devices, and the interface circuit 9202 can be configured to send data to the memory 9203 or other devices. For example, the interface circuit 9202 can read data stored in the memory 9203 and send the data to the processor 9201.

[0409] In some embodiments, the interface circuit 9202 performs at least one of the communication steps (for example, step S301, but not limited thereto) of sending and / or receiving in the above methods. The interface circuit 9202 performing the communication steps such as sending and / or receiving in the above methods means that the interface circuit 9202 performs data interaction between the processor 9201, the chip 9200, the memory 9203, or a transceiver device.

[0410] The modules and / or devices described in each embodiment of the virtual device, the physical device, the chip, etc. can be combined or separated as appropriate. Alternatively, some or all of the steps can be performed cooperatively by a number of modules and / or devices, which are not limited here.

[0411] The embodiments of the present disclosure further provide a storage medium, and the storage medium stores instructions. When the instructions run on the communication device 9100, the communication device 9100 performs any one of the above methods. Alternatively, the storage medium is an electronic storage medium. Alternatively, the storage medium is a computer readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Alternatively, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0412] The embodiments of the present disclosure further provide a program product, and the program product is executed by the communication device 9100, so that the communication device 9100 performs any one of the above methods. Alternatively, the program product is a computer program product.

[0413] The embodiments of the present disclosure further provide a computer program, and when the computer program runs on a computer, the computer executes any one of the above methods.

[0414] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The present disclosure is intended to cover any and all variations of the application that fall within the scope of the present application along with its equivalents. It is submitted that the true scope of the application is indicated by the following claims.

[0415] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the appended claims.

Claims

1. A communication method for a terminal with three transmitting antennas, executed by the terminal, the method comprising: Receive first information, the first information being used to indicate a sounding reference signal (SRS) configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the function of the SRS resource sets being configured for antenna switching; Based on the first information, SRS is sent on N SRS resources in the one or more SRS resource sets, where N is a positive integer; Each of the N SRS resources is configured as at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource.

2. The method according to claim 1, wherein, The first antenna switching configuration has x transmit ports and y receive ports, where x is less than y and x and y are positive integers; the N SRS resources include at least: a first SRS resource and a second SRS resource, where the number of ports in the second SRS resource is not equal to the number of ports in the first SRS resource; The method further includes: Based on the first parameter, the transmit power of the SRS port at the time domain location of the first SRS resource is adjusted, wherein the transmit power of each SRS port in the SRS resource at different time domain locations is the same, and the first parameter is determined based on the number of ports of the first SRS resource and the number of ports of the second SRS resource.

3. The method according to claim 2, wherein, x can take the value of 2 or 3, and y can take the value of 3 or 4.

4. The method according to any one of claims 1 to 3, wherein, The first antenna switching configuration includes one of the following; Two transmit ports and three receive ports; 3 transmit ports and 3 receive ports; 3 transmit ports and 4 receive ports; It has 3 transmit ports and 6 receive ports.

5. The method according to claim 4, wherein, The N SRS resources include at least one of the following: one 3-port SRS resource, one 1-port SRS resource, one 2-port SRS resource, and one 4-port SRS resource, wherein the first antenna switching configuration is 3 transmit ports and 3 receive ports; The N SRS resources include one of the following: one 3-port SRS resource, one 1-port SRS resource, and one 2-port SRS resource, wherein the first antenna switching configuration is 2 transmit ports and 3 receive ports; The N SRS resources include one of the following: one 1-port SRS resource and one 3-port SRS resource, two 2-port SRS resources, and four 1-port SRS resources, wherein the first antenna switching configuration is three transmit ports and four receive ports. The N SRS resources include one of the following: 6 one-port SRS resources, 2 three-port SRS resources, and 3 two-port SRS resources, wherein the first antenna switching configuration is 3 transmit ports and 6 receive ports.

6. The method according to claim 5, wherein, The N SRS resources include one 4-port SRS resource, and the method further includes: Determine the equivalent 3-port SRS resource from the 4-port SRS resource.

7. The method according to claim 5 or 6, wherein, The 3-port SRS resource is determined based on at least one of the following: Pre-configured ports; The first SRS port is the port that the terminal uses or does not use when transmitting SRS for antenna switching, as reported by the terminal. The second SRS port is a port that the network device is configured to use or not use when transmitting SRS for antenna switching.

8. The method according to any one of claims 1 to 7, wherein, N is greater than or equal to 2, and an antenna switching interval is added between the last symbol of the i-th SRS resource and the first symbol of the (i+1)-th SRS resource. The i-th SRS resource is adjacent to the (i+1)-th SRS resource, and i is a positive integer less than or equal to N-1.

9. The method according to claim 10, wherein, The length of the antenna switching interval is configured by the network device based on the terminal's support capability for the antenna switching interval.

10. The method according to claim 10 or 11, wherein, The antenna switching interval includes at least one of the following: 0 time units; One time unit; Two time units.

11. The method according to any one of claims 1 to 10, wherein, Each SRS resource set includes SRS resources with the same number of ports and / or SRS resources with different numbers of ports.

12. The method according to claim 11, wherein, Each SRS resource set is one of the following: Periodic SRS resource set; Semi-persistent SRS resource set; Aperiodic SRS resource set.

13. A communication method for a terminal with three transmitting antennas, executed by a network device, the method comprising: Send first information, the first information being used to indicate a sounding reference signal (SRS) configuration associated with a first antenna switching configuration, the SRS configuration being used to indicate one or more SRS resource sets, the function of the SRS resource sets being configured for antenna switching; Receive SRS on N SRS resources in one or more SRS resource sets, where N is a positive integer; Each of the N SRS resources includes at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource.

14. The method according to claim 13, wherein, The first antenna switching configuration includes one of the following; Two transmit ports and three receive ports; 3 transmit ports and 3 receive ports; 3 transmit ports and 4 receive ports; It has 3 transmit ports and 6 receive ports.

15. The method according to claim 14, wherein, The N SRS resources include at least one of the following: one 3-port SRS resource, one 1-port SRS resource, one 2-port SRS resource, and one 4-port SRS resource, wherein the first antenna switching configuration is 3 transmit ports and 3 receive ports; The N SRS resources include one of the following: one 3-port SRS resource, one 1-port SRS resource, and one 2-port SRS resource, wherein the first antenna switching configuration is 2 transmit ports and 3 receive ports; The N SRS resources include one of the following: one 1-port SRS resource and one 3-port SRS resource, two 2-port SRS resources, and four 1-port SRS resources, wherein the first antenna switching configuration is three transmit ports and four receive ports. The N SRS resources include one of the following: 6 one-port SRS resources, 2 three-port SRS resources, and 3 two-port SRS resources, wherein the first antenna switching configuration is 3 transmit ports and 6 receive ports.

16. The method according to claim 15, wherein, The N SRS resources include one 4-port SRS resource, and the method further includes: Determine the equivalent 3-port SRS resource from the 4-port SRS resource.

17. The method according to claim 15 or 16, wherein, The 3-port SRS resource is determined based on at least one of the following: Pre-configured ports; The first SRS port is the port that the terminal uses or does not use when transmitting SRS for antenna switching, as reported by the terminal. The second SRS port is a port that the network device is configured to use or not use when transmitting SRS for antenna switching.

18. The method according to any one of claims 13 to 17, wherein, N is greater than or equal to 2, and an antenna switching interval is added between the last symbol of the i-th SRS resource and the first symbol of the (i+1)-th SRS resource. The i-th SRS resource is adjacent to the (i+1)-th SRS resource, and i is a positive integer less than or equal to N-1.

19. The method according to claim 18, wherein, The length of the antenna switching interval is configured by the network device based on the terminal's support capability for the antenna switching interval.

20. The method according to claim 18 or 19, wherein, The length of the antenna switching interval includes at least one of the following: 0 time units; One time unit; Two time units.

21. The method according to any one of claims 13 to 20, wherein, Each SRS resource set includes SRS resources with the same number of ports and / or SRS resources with different numbers of ports.

22. The method according to claim 21, wherein, Each SRS resource set is one of the following: Periodic SRS resource set; Semi-persistent SRS resource set; Aperiodic SRS resource set.

23. A terminal, comprising: The transceiver module is configured to receive first information, which indicates a Sounding Reference Signal (SRS) configuration associated with a first antenna switching configuration. The SRS configuration indicates one or more SRS resource sets, the functions of which are... Configured for antenna switching; based on the first information, transmit SRS on N SRS resources in one or more SRS resource sets, where N is a positive integer; wherein each of the N SRS resources includes at least one of 1-port SRS resources, 2-port SRS resources, 3-port SRS resources, and 4-port SRS resources, and the terminal has 3 transmit antennas.

24. A network device, comprising: The transceiver module is configured to transmit first information, which indicates a sounding reference signal (SRS) configuration associated with a first antenna switching configuration. The SRS configuration indicates one or more SRS resource sets, the function of which is configured for antenna switching. The module receives SRS on N SRS resources in the one or more SRS resource sets, where N is a positive integer. Each of the N SRS resources includes at least one of a 1-port SRS resource, a 2-port SRS resource, a 3-port SRS resource, and a 4-port SRS resource. The terminal has three transmit antennas.

25. A terminal, comprising: At least one processor; A memory that stores instructions; When the instruction is executed by the terminal, it causes the terminal to implement the method as described in any one of claims 1 to 12.

26. A network device, comprising: At least one processor; A memory that stores instructions; When the instruction is executed by the network device, it causes the network device to implement the method as described in any one of claims 13 to 22.

27. A communication system, comprising: A terminal configured to implement the method as described in any one of claims 1 to 12; A network device configured to implement the method as described in any one of claims 13 to 22.

28. A storage medium storing instructions, wherein, When the instruction is executed on a communication device, it causes the communication device to perform the method as described in any one of claims 1 to 22, wherein the communication device includes a terminal or network device with three transmitting antennas.

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