Communication method, terminal, network device, communication device and storage medium

Abstract

The present disclosure relates to a communication method, a terminal, a network device, a communication device, a storage medium and a program product. The method is executed by a terminal. The method comprises: determining a transmission parameter corresponding to a 3-port SRS resource, wherein the transmission parameter is used for realizing SRS transmission based on the 3-port SRS resource, and the 3-port SRS resource is used for acquiring uplink CSI by means of three SRS ports. The terminal is a terminal having three transmit antennas. By means of the solution of the present disclosure, the SRS transmission of the terminal having three transmit antennas can be realized.

Description

Communication method, terminal, network device, communication device, storage medium Technical Field

[0001] The present disclosure relates to the field of wireless communications, and in particular to a communication method, a terminal, a network device, a communication device, a storage medium, and a program product. Background Art

[0002] In a communication system, a terminal can send a sounding reference signal (SRS) to an access network device to determine uplink channel quality. The SRS resources used by the terminal to transmit SRS can be configured by the access network device. With the advancement of communication technology, a terminal may have three transmit antennas. In this case, the access network device needs to be able to configure the corresponding SRS resources for the terminal, which support SRS transmission for a terminal with three transmit antennas.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure relate to a communication method, a terminal, a network device, a communication device, a storage medium, and a program product to implement SRS transmission of a terminal with three transmitting antennas.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided. The communication method is performed by a terminal. The communication method includes: determining a transmission parameter corresponding to a 3-port SRS resource, wherein the transmission parameter is used to implement SRS transmission based on the 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink CSI through three SRS ports; wherein the terminal is a 3-transmit antenna terminal.

[0006] According to a second aspect of an embodiment of the present disclosure, a communication method is provided. The communication method is performed by a network device. The communication method includes: sending first information, wherein the first information is used to indicate that a three-port SRS resource is allocated using a TDM or FDM method, and the three-port SRS resource is used to obtain uplink CSI through three SRS ports.

[0007] According to a third aspect of an embodiment of the present disclosure, a terminal is provided. The terminal includes a processing module. The processing module is configured to: determine transmission parameters corresponding to a 3-port SRS resource, wherein the transmission parameters are used to implement SRS transmission based on the 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink CSI through three SRS ports; wherein the terminal is a 3-transmit antenna terminal.

[0008] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided. The network device includes a transceiver module. The transceiver module is configured to send first information, wherein the first information is used to indicate that a three-port SRS resource is allocated using a TDM or FDM method, and the three-port SRS resource is used to obtain uplink CSI through three SRS ports.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a communication device is provided. The communication device includes one or more processors and a memory storing instructions. When the instructions are executed by the communication device, the communication device implements the communication method described in the first aspect.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided. The communication device includes one or more processors and a memory storing instructions. When the instructions are executed by the communication device, the communication device implements the communication method described in the second aspect.

[0011] According to a seventh aspect of an embodiment of the present disclosure, a communication system is provided. The communication system includes a terminal and a network device. The terminal is configured to implement the communication method described in the first aspect. The network device is configured to implement the communication method described in the second aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is provided. The storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect or the second aspect.

[0013] According to a ninth aspect of the embodiments of the present disclosure, a program product is provided, which, when executed by a communication device, causes the communication device to execute the communication method as described in the first or second aspect.

[0014] According to a tenth aspect of the embodiments of the present disclosure, a computer program is provided, which, when executed on a computer, causes the computer to execute the communication method according to the first aspect or the second aspect.

[0015] 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 a processing circuit. The processing circuit is configured to execute the communication method described in the first aspect or the second aspect.

[0016] According to the embodiments of the present disclosure, it is possible to implement configuration and transmission of 3-port SRS resources based on a 3-transmitting antenna terminal.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and do not constitute limitations on the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0019] FIG1 is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0020] FIG2A is a schematic diagram of mapping SRS resources on time-frequency domain resources.

[0021] FIG2B is a schematic diagram showing the structure of 3-port SRS resources in the time-frequency domain.

[0022] FIG3 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0023] FIG4 is an exemplary flowchart of a communication method provided according to an embodiment of the present disclosure.

[0024] FIG5 is an exemplary flowchart of a communication method provided according to an embodiment of the present disclosure.

[0025] FIG6 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0026] FIG7 is an exemplary structural diagram of a communication device provided according to an embodiment of the present disclosure.

[0027] FIG8A is a schematic structural diagram of a communication device provided according to an embodiment of the present disclosure.

[0028] FIG8B is a schematic structural diagram of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] Embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication device, a storage medium, and a program product.

[0030] In a first aspect, embodiments of the present disclosure provide a communication method. The communication method is performed by a terminal. The communication method includes determining a transmission parameter mode corresponding to a 3-port SRS resource, wherein the transmission parameter is used to implement SRS transmission based on the 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink CSI via three SRS ports; wherein the terminal is a 3-transmit antenna terminal.

[0031] Through this embodiment, a terminal with three transmitting antennas can determine the transmission parameters corresponding to the three-port SRS resource. In this way, the terminal can use the corresponding transmission parameters to send the SRS.

[0032] In combination with some embodiments of the first aspect, in some embodiments, the transmission parameter includes at least one of the following: transmission power of three SRS ports corresponding to the three-port SRS resource; resource position of the three-port SRS resource.

[0033] In combination with some embodiments of the first aspect, in some embodiments, the 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 3 1-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource.

[0034] Through this embodiment, the 3-port SRS resource for the terminal with 3 transmitting antennas can be implemented using the already defined 1-port SRS resource and / or 2-port SRS resource. In this way, the 3-port SRS resource can be implemented more flexibly without requiring overall adjustment of the protocol.

[0035] In combination with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port SRS resources can be allocated in a TDM or FDM manner.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port SRS resource may be located on at least one symbol.

[0037] In combination with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port resource may be allocated in an FDM manner, and all SRS resources in the 3-port SRS resource may be located on one symbol.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the SRS transmission power corresponding to the 3-port SRS resource may be evenly distributed among the 3 SRS ports.

[0039] In combination with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port resource can be allocated in a TDM manner, and the 3-port SRS resource includes M SRS resource subsets, each SRS resource subset includes at least one SRS resource, and each SRS resource subset is located on a symbol; wherein M is an integer and M is greater than 1.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the M SRS resource subsets may be located on M consecutive symbols.

[0041] In combination with some embodiments of the first aspect, in some embodiments, M SRS resource subsets may be repeatedly located on N symbols, where N is an integer multiple of M; wherein N is an integer and is greater than 1.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, N is configurable.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the SRS transmission power corresponding to each symbol can be evenly distributed among at least one SRS port corresponding to the SRS resource included in the SRS resource subset corresponding to each symbol.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the sending parameter may be related to at least one of the following: a power backoff policy; a power boost policy; and a conflict discarding policy.

[0045] Through this embodiment, the transmit power corresponding to each SRS port of the 3-port SRS resource can be determined based on power backoff and / or power boost. In addition, through collision discarding, it can be determined that some or all symbols occupied by the 3-port SRS resource are discarded, thereby obtaining a final 3-port SRS resource for transmitting SRS.

[0046] In combination with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port resources can be allocated in a TDM manner, and multiple SRS resources in the 3-port SRS resources can be located on multiple symbols; wherein, the power backoff strategy can include: power backoff for multiple symbols, and power backoff for some symbols in multiple symbols.

[0047] Through this embodiment, when power backoff is required for one or more symbols, power backoff can be performed on all multiple symbols. In this way, the consistency of the transmit power on each SRS port can be ensured, thereby improving the accuracy of channel state assessment.

[0048] In combination with some embodiments of the first aspect, in some embodiments, each symbol related to power backoff may correspond to the same power backoff amount.

[0049] Through this embodiment, when power backoff is required for one or more symbols, the same degree of power backoff can be performed on all multiple symbols. In this way, the consistency of the transmit power on each SRS port can be further enhanced, thereby improving the accuracy of channel state assessment.

[0050] In combination with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port resources can be allocated in a TDM manner, and multiple SRS resources in the 3-port SRS resources can be located on multiple symbols; wherein, the power boosting strategy may include: power boosting for multiple symbols, and power boosting for some symbols in multiple symbols.

[0051] Through this embodiment, when power boosting is required for one or several symbols, power boosting can be performed on all multiple symbols, thereby ensuring the consistency of transmit power on each SRS port and improving the accuracy of channel state assessment.

[0052] In combination with some embodiments of the first aspect, in some embodiments, each symbol related to power boost may correspond to the same power boost amount.

[0053] Through this embodiment, when power boosting is required for one or more symbols, the same power boosting can be performed on all multiple symbols, thereby further enhancing the consistency of transmit power on each SRS port and improving the accuracy of channel state assessment.

[0054] With reference to some embodiments of the first aspect, in some embodiments, the three SRS ports corresponding to the three-port SRS resource may have the same transmit power.

[0055] In combination with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port resources can be allocated in a TDM manner, and multiple SRS resources in the 3-port SRS resources can be located on multiple symbols; wherein, the conflict discarding strategy can include: conflict discarding for multiple symbols, and conflict discarding for some symbols in multiple symbols.

[0056] According to this embodiment, when one or more of the multiple symbols collide, all of the multiple symbols may be discarded, or only the conflicting symbols may be discarded. In this way, under the premise of ensuring that SRS transmission of 3 ports can be achieved, only discarding the conflicting symbols can ensure SRS transmission.

[0057] In combination with some embodiments of the first aspect, in some embodiments, when the 3-port SRS resource cannot implement 3-port SRS transmission after conflict discarding of some symbols among multiple symbols, the conflict discarding can be for multiple symbols.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the above communication method may further include: sending the SRS according to the sending parameters.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the above communication method may further include: receiving first information, wherein the first information is used to indicate that the 3-port SRS resources are allocated in a TDM or FDM manner.

[0060] In a second aspect, embodiments of the present disclosure provide a communication method. The communication method is performed by a network device. The communication method includes: sending first information, where the first information indicates that a three-port SRS resource is allocated using a TDM or FDM method, and the three-port SRS resource is used to obtain uplink CSI via three SRS ports.

[0061] Through this embodiment, the network device sends the first information to the terminal, so that the terminal can determine the resource allocation method of the 3-port SRS resource. According to the resource allocation method, the terminal can implement the transmission of the 3-port SRS resource.

[0062] In combination with some embodiments of the second aspect, in some embodiments, the 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 3 1-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource.

[0063] In a third aspect, embodiments of the present disclosure provide a terminal. The terminal includes a processing module configured to determine transmission parameters corresponding to a 3-port SRS resource, wherein the transmission parameters are used to implement SRS transmission based on the 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink CSI through three SRS ports; wherein the terminal is a 3-transmit antenna terminal.

[0064] In combination with some embodiments of the first aspect, in some embodiments, the transmission parameter includes at least one of the following: transmission power of three SRS ports corresponding to the three-port SRS resource; resource position of the three-port SRS resource.

[0065] In combination with some embodiments of the third aspect, in some embodiments, the 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 3 1-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource.

[0066] In combination with some embodiments of the third aspect, in some embodiments, multiple SRS resources in the 3-port SRS resources can be allocated in a TDM or FDM manner.

[0067] In conjunction with some embodiments of the third aspect, in some embodiments, multiple SRS resources in the 3-port SRS resource may be located on at least one symbol.

[0068] In combination with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port resource may be allocated in an FDM manner, and all SRS resources in the 3-port SRS resource may be located on one symbol.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the SRS transmission power corresponding to the 3-port SRS resource may be evenly distributed among the 3 SRS ports.

[0070] In combination with some embodiments of the first aspect, in some embodiments, multiple SRS resources in the 3-port resource can be allocated in a TDM manner, and the 3-port SRS resource includes M SRS resource subsets, each SRS resource subset includes at least one SRS resource, and each SRS resource subset is located on a symbol; wherein M is an integer and M is greater than 1.

[0071] In combination with some embodiments of the first aspect, in some embodiments, the M SRS resource subsets may be located on M consecutive symbols.

[0072] In combination with some embodiments of the first aspect, in some embodiments, M SRS resource subsets may be repeatedly located on N symbols, where N is an integer multiple of M; wherein N is an integer and is greater than 1.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, N is configurable.

[0074] In combination with some embodiments of the first aspect, in some embodiments, the SRS transmission power corresponding to each symbol can be evenly distributed among at least one SRS port corresponding to the SRS resource included in the SRS resource subset corresponding to each symbol.

[0075] In combination with some embodiments of the third aspect, in some embodiments, the sending parameter may be related to at least one of the following: a power backoff strategy; a power boost strategy; a conflict discard strategy.

[0076] In combination with some embodiments of the third aspect, in some embodiments, multiple SRS resources in the 3-port resources can be allocated in a TDM manner, and multiple SRS resources in the 3-port SRS resources can be located on multiple symbols; wherein, the power backoff strategy can include: power backoff for multiple symbols, and power backoff for some symbols in multiple symbols.

[0077] In combination with some embodiments of the third aspect, in some embodiments, each symbol related to power backoff may correspond to the same power backoff amount.

[0078] In combination with some embodiments of the third aspect, in some embodiments, multiple SRS resources in the 3-port resources can be allocated in a TDM manner, and multiple SRS resources in the 3-port SRS resources can be located on multiple symbols; wherein, the power boosting strategy may include: power boosting for multiple symbols, and power boosting for some symbols in multiple symbols.

[0079] In combination with some embodiments of the third aspect, in some embodiments, each symbol related to power boost may correspond to the same power boost amount.

[0080] In combination with some embodiments of the third aspect, in some embodiments, the three SRS ports corresponding to the 3-port SRS resource may have the same transmit power.

[0081] In combination with some embodiments of the third aspect, in some embodiments, multiple SRS resources in the 3-port resources can be allocated in a TDM manner, and multiple SRS resources in the 3-port SRS resources can be located on multiple symbols; wherein, the conflict discarding strategy may include: conflict discarding for multiple symbols, and conflict discarding for some symbols in multiple symbols.

[0082] In combination with some embodiments of the third aspect, in some embodiments, when the 3-port SRS resource cannot implement 3-port SRS transmission after conflict discarding of some symbols among multiple symbols, the conflict discarding can be for multiple symbols.

[0083] In conjunction with some embodiments of the third aspect, in some embodiments, the communication device may further include a transceiver module, wherein the transceiver module is configured to: transmit the SRS according to the transmission parameters.

[0084] In combination with some embodiments of the third aspect, in some embodiments, the transceiver module may be further configured to: receive first information, where the first information is used to indicate that the 3-port SRS resources are allocated in a TDM or FDM manner.

[0085] In a fourth aspect, embodiments of the present disclosure provide a network device. The network device includes a transceiver module. The transceiver module is configured to transmit first information, wherein the first information indicates that a three-port SRS resource is allocated using a TDM or FDM method, and the three-port SRS resource is used to obtain uplink CSI via three SRS ports.

[0086] In combination with some embodiments of the fourth aspect, in some embodiments, the 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 3 1-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource.

[0087] In a fifth aspect, embodiments of the present disclosure provide a communication device. The communication device includes one or more processors and a memory storing instructions. When the instructions are executed by the communication device, the communication device implements the communication method described in the first aspect and any possible implementation thereof.

[0088] In a sixth aspect, embodiments of the present disclosure provide a communication device. The communication device includes one or more processors and a memory storing instructions. When the instructions are executed by the communication device, the communication device implements the communication method described in the second aspect and any possible implementation thereof.

[0089] In a seventh aspect, embodiments of the present disclosure provide a communication system. The communication system includes a terminal and a network device. The terminal is configured to implement the communication method described in the first aspect and any one of its possible implementations. The network device is configured to implement the communication method described in the second aspect and any one of its possible implementations.

[0090] In an eighth aspect, an embodiment of the present disclosure provides a storage medium storing instructions that, when executed on a communication device, cause the communication device to execute the communication method as described in the first aspect, the second aspect, and any one of the possible implementations thereof.

[0091] In a ninth aspect, an embodiment of the present disclosure provides a program product. When the program product is executed by a communication device, the communication device executes the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0092] In a tenth aspect, an embodiment of the present disclosure provides a computer program. When the computer program is executed on a computer, the computer executes the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0093] In an eleventh aspect, embodiments of the present disclosure provide a chip or a chip system. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0094] It is understandable that the above-mentioned terminals, network devices, communication devices, storage media, program products, computer programs, chips, and chip systems are all used to perform the methods provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0095] The present disclosure provides a communication method, terminal, network device, communication device, storage medium, and program product. In some embodiments, the terms communication method, information processing method, and information transmission method are interchangeable; the terms communication device, communication function, and communication entity are interchangeable; and the terms communication system and information processing system are interchangeable.

[0096] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0097] In the embodiments of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0098] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0099] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when articles such as "a", "an", "the" in English are used in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0100] In the embodiments of the present disclosure, “plurality” refers to two or more than two.

[0101] In some embodiments, the terms "at least one", "one or more", etc. can be used interchangeably.

[0102] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0103] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0104] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for example, if the description object is "information", then the "second information" and the "first information" can be the same information or different information, and their contents can be the same or different.

[0105] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0106] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0107] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0108] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0109] In some embodiments, "network" can be interpreted as devices included in the network (e.g., access network devices, core network devices, etc.). For example, a network device may include at least one access network device. For another example, a network device may include at least one core network device. For another example, a network device may include at least one access network device and at least one core network device.

[0110] 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 may be used interchangeably.

[0111] 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, etc. can be used interchangeably.

[0112] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0113] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0114] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0115] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0116] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0117] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0118] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things (IoT) device, a car with communication function, a smart car, a tablet computer (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 a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0119] In some embodiments, the network device 102 can be, for example, a node or device that accesses the terminal to a wireless network. The network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (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 base station (Open RAN), a cloud base station (Cloud RAN), a satellite base station, a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0120] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces within the network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0121] In some embodiments, the network device 102 can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0122] In some embodiments, the network device 102 may be one device, or multiple devices or a device group. The network device 102 may be virtual or physical.

[0123] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0124] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or some of the entities in the communication system 100 , but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system 100 may include all or some of the entities shown in FIG1 , or may include other entities other than those shown in FIG1 . The number and form of the entities are arbitrary. The entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0125] The embodiments of the present disclosure may 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-Wideband (UWB), and other technologies. Band (UWB), Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems using other communication methods, and next-generation systems based on and extending these methods. Furthermore, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G) may also be applied.

[0126] In a communication system, a terminal can send an SRS to an access network device to obtain uplink channel quality. The SRS resources used by the terminal to send the SRS can be configured by the access network device. The access network device can send configuration information to the terminal to configure the SRS resources.

[0127] A terminal may have one or more antenna ports, and may transmit SRS via one or more antenna ports. In this case, the SRS resources configured by the access network device for the terminal may correspond to the number of antenna ports of the terminal. More specifically, an SRS resource may have one or more SRS ports, and the number of SRS ports may correspond to the number of antenna ports of the terminal. In some embodiments, the number of SRS ports supported by an SRS resource may be 1, 2, 4, 8, etc. In some embodiments, the number of SRS ports may be configured using the high-level parameter nrofSRS-Ports in the configuration information.

[0128] The SRS resource may occupy one or more symbols in the time domain (e.g., orthogonal frequency division multiplexing (OFDM) symbols). The symbols occupied by the SRS resource may be continuous in the time domain. In some embodiments, the number of available time domain resources, i.e., the number of symbols that the SRS resource may occupy, may be 1, 2, 4, 8, 10, 12, 14, etc. In some embodiments, the number of symbols occupied by the SRS resource may be configured by a high-level parameter nrofSymbol in the configuration information. In some embodiments, the position of the starting symbol of the SRS resource may be 0, 1, 2, 3, 4, 5, etc. In some embodiments, the position of the starting symbol of the SRS resource may be configured by a high-level parameter startPosition in the configuration information.

[0129] Figure 2A is a schematic diagram of the mapping of SRS resources on time-frequency domain resources. As shown in Figure 2A, three SRS resources are mapped on the time-frequency domain resources, namely the first SRS resource, the second SRS resource, and the third SRS resource. The first SRS resource occupies 1 symbol in the time domain, and this symbol is the third symbol from the last symbol in the time slot where the first SRS resource is located. The high-level parameters nrofSymbol and startPosition related to the first SRS resource can be 1 and 3, respectively. The second SRS resource occupies 4 symbols in the time domain, and the last symbol of the second SRS resource is the second symbol from the last symbol in the time slot where the second SRS resource is located. The high-level parameters nrofSymbol and startPosition related to the second SRS resource can be 4 and 2, respectively. The third SRS resource occupies 2 symbols in the time domain, and the last symbol of the third SRS resource is the 0th symbol from the last symbol in the time slot where the third SRS resource is located. The third SRS resource-related high-level parameters nrofSymbol and startPosition may be 2 and 0, respectively.

[0130] The SRS resources can be arranged in a comb-like manner in the frequency domain. That is to say, the subcarriers occupied by an SRS resource are arranged at equal intervals. Obviously, the subcarriers occupied by an SRS resource are non-continuous. In some embodiments, the arrangement period of the subcarriers occupied by the SRS resources in the frequency domain can be 2, 4, etc. In some embodiments, the arrangement period of the subcarriers occupied by the SRS resources in the 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 the SRS resources in the frequency domain can be 0, 1, 2, 3, etc. In some embodiments, the offset of the subcarriers occupied by the SRS resources in the frequency domain can be configured by the high-level parameter combOffset in the configuration information.

[0131] Continuing with Figure 2A , the first SRS resource is arranged in a comb-like pattern in the frequency domain, with an arrangement period of 2, and the offset of the first occupied subcarrier relative to the first subcarrier (lower edge) of the time-frequency resource is 0. The high-level parameters transmissionComb and combOffset associated with the first SRS resource can be 2 and 0, respectively. Similarly, the high-level parameters transmissionComb and combOffset associated with the second SRS resource can be 2 and 1, respectively, and the high-level parameters transmissionComb and combOffset associated with the third SRS resource can be 4 and 0, respectively.

[0132] In some embodiments, the mapping of an 8-port SRS resource (i.e., an SRS resource supporting 8 SRS ports) to time-frequency resources can be performed using either time division multiplexing (TDM) or non-TDM. In some embodiments, whether the 8-port SRS resource uses the TDM method can be configured using the higher-level parameter transmissionComb in the configuration information. In some embodiments, for the non-TDM method, the mapping of the 8-port SRS resource to time-frequency resources can be achieved by arranging different combinations of period, subcarrier offset, and cyclic shift. In one example, the higher-level parameter transmissionComb associated with the 8-port SRS resource can be 2, and different cyclic shifts can be used. In another example, the higher-level parameter transmissionComb associated with the 8-port SRS resource can be 4 or 8, and different subcarrier offsets and cyclic shifts can be used. In some embodiments, for the TDM method, the 8-port SRS resource can occupy multiple symbols. In one example, the 8-port SRS resource can occupy 2 symbols. In this case, the 8 SRS ports corresponding to the 8-port SRS resource can be divided into two SRS port subsets. Each SRS port subset can include 4 SRS ports. For example, a first subset of SRS ports may include ports 0, 1, 4, 5, and a second subset of SRS ports may include ports 2, 3, 6, 7.

[0133] In order to realize uplink transmission based on codebook (for example, physical uplink shared channel (PUSCH)), the SRS resource set configured by the access network device for the terminal can be applicable to uplink transmission based on codebook. The SRS resource set may include one or more SRS resources. After receiving the SRS sent by the terminal through the SRS resource, the access network device may send an SRS resource indication (SRS resource indication, SRI) to the terminal to indicate the selected SRS resource. At the same time, the access network device may determine the precoding matrix and number of transmission layers used by the terminal for actual transmission, and notify the terminal through the transmit precoding matrix indicator (TPMI) and the transmit rank indicator (TRI) respectively. The terminal determines the codebook according to the TPMI and TRI, and precodes the data based on the codebook, and then uses the antenna port corresponding to the SRS resource indicated by the SRI to send the precoded data.

[0134] With the development of communication technology, a terminal may have three transmitting antennas. In this case, the terminal needs to be able to send SRS through a three-port SRS resource.

[0135] Figure 2B is a schematic diagram of the composition of a 3-port SRS resource in the time-frequency domain. As shown in Figure 2B, a 3-port SRS resource can be implemented by an SRS resource with other port numbers. In one example, a 3-port SRS resource can be implemented by a combination of multiple SRS resources. For example, a 3-port SRS resource can be implemented by a combination of three 1-port SRS resources. In this case, each 1-port SRS resource can correspond to 1 antenna port, and the three 1-port SRS resources can correspond to 3 antenna ports. For example, a 3-port SRS resource can be implemented by a combination of a 1-port SRS resource and a 2-port SRS resource. In this case, a 1-port SRS resource can correspond to 1 antenna port, and a 2-port SRS resource can correspond to 2 antenna ports, and the combination of a 1-port SRS resource and a 2-port SRS resource can correspond to 3 antenna ports.

[0136] It should be noted that in the embodiments of the present disclosure, a "3-port SRS resource" may also be referred to as an "equivalent 3-port SRS resource" or may have other names. In some embodiments, a 3-port SRS resource may be an SRS resource directly defined by the protocol and applicable to a terminal with three transmit antennas. In some embodiments, a 3-port SRS resource may be obtained by combining one or more SRS resources as described above and is also applicable to a terminal with three transmit antennas. In both cases, the SRS resource may be referred to as a 3-port SRS resource or an equivalent 3-port SRS resource.

[0137] Figure 3 is an exemplary interaction diagram of a communication method according to an embodiment of the present disclosure. This embodiment of the present disclosure relates to a communication method, which is applied to a communication system 100. As shown in Figure 3, the communication method includes steps S301 to S307.

[0138] In step S301 , the terminal 101 sends capability information to the network device 102 .

[0139] In some embodiments, network device 102 may receive capability information.

[0140] In some embodiments, the capability information may be used to indicate the capability of the terminal 101 .

[0141] In some embodiments, the capability information may be used to indicate functions supported by the terminal 101 .

[0142] In some embodiments, the name of the capability information is not limited, and it can be, for example, UE capability (UE capability), UE capability information (UE capability information), UE capability indication, function information, etc., and the embodiments of the present disclosure do not make specific limitations on this.

[0143] In some embodiments, capability information may be carried in a ueCapabilityInformation information element (IE).

[0144] In some embodiments, the capability information may include at least one of the following: SRS resource parameters, and port parameters of a transmitting antenna. It is understood that the capability information may also include other parameters, which are not specifically limited in the embodiments of the present disclosure.

[0145] In some embodiments, the capability information may be used to indicate that the terminal 101 is a terminal with three transmit antennas, so that the network device 102 configures a three-port SRS resource for the three-transmit antenna terminal.

[0146] In some embodiments, the capability information may be used to indicate resource allocation methods supported by the terminal 101 .

[0147] In some embodiments, resource allocation methods may include time division multiplexing (TDM) and frequency division multiplexing (FDM).

[0148] In some embodiments, the SRS resource parameter may be used to indicate parameters of the terminal 101 related to the SRS resource.

[0149] In some embodiments, the SRS resource parameters may be carried in the featuresSetsUplink information element.

[0150] In some embodiments, the transmit antenna port parameter may be used to indicate the number of antenna ports of the transmit antenna of terminal 101. In one example, the number of antenna ports of terminal 101 may be equal to 3. In other words, the number of transmit antennas of terminal 101 may be equal to 3.

[0151] In some embodiments, the port parameters of the transmitting antenna may be carried in the srs-TxSwitch information element.

[0152] In some embodiments, the capability information may be carried in upper layer signaling, for example, signaling in a radio resource control (RRC) process.

[0153] In some embodiments, the capability information may be carried in a UE Capability Information message. In one example, the UE Capability Information message may be transmitted during an RRC process. In some embodiments, the UE Capability Information message may be sent by terminal 101 in response to a UE Capability Information Query message from network device 102. In some embodiments, the UE Capability Information message may be proactively sent by terminal 101.

[0154] In some embodiments, network device 102 may not receive capability information.

[0155] In some embodiments, network device 102 may not expect to receive capability information.

[0156] In step S302 , the network device 102 sends configuration information to the terminal 101 .

[0157] In some embodiments, terminal 101 may receive configuration information.

[0158] In some embodiments, network device 102 may send configuration information to terminal 101 based on the capability information of terminal 101. It is understood that, in some cases, network device 102 may send configuration information to terminal 101 independently of capability information. That is, network device 102 may send configuration information to terminal 101 regardless of whether terminal 101 sends capability information to network device 102.

[0159] In some embodiments, the configuration information can be used to configure an SRS resource set. The SRS resource set includes at least one 3-port SRS resource. In some embodiments, terminal 101 notifies network device 102 that it is a 3-transmit antenna terminal and needs to obtain a 3-port SRS resource. Network device 102 can then configure the 3-port SRS resource for terminal 101 using the configuration information. For example, network device 102 can configure an SRS resource set for terminal 101, where the SRS resource set includes one or more SRS resources, where the SRS resource is a 3-port SRS resource.

[0160] In some embodiments, the configuration information may be used to indicate the configuration of the SRS resource set to the terminal 101 .

[0161] In some embodiments, the name of the configuration information is not limited, and it may be, for example, SRS resource configuration information, resource configuration information, SRS resource indication information, SRS resource parameter information, etc., and the embodiments of the present disclosure do not make specific limitations on this.

[0162] In some embodiments, the configuration information may be carried in an SRS-Config information element.

[0163] In some embodiments, the configuration information may be carried in higher-layer signaling, such as signaling in an RRC process.

[0164] In some embodiments, the number of SRS resource sets may be greater than or equal to 1. Each SRS resource set may include at least one 3-port SRS resource.

[0165] In some embodiments, the SRS resource set can function as a codebook. That is, a three-port SRS resource in the SRS resource set can obtain uplink CSI via the three SRS ports. In some embodiments, the CSI can be used for codebook-based PUSCH transmission. In other words, the CSI can be used for codebook-based PUSCH transmission.

[0166] In some embodiments, a 3-port SRS resource may include multiple implementations. In some embodiments, a 3-port SRS resource may be implemented by a combination of one or more of the following SRS resources: a 1-port SRS resource and a 2-port SRS resource. In other words, a 3-port SRS resource may include at least one of the following: a 1-port SRS resource and a 2-port SRS resource. In one example, a 1-port SRS resource may also be referred to as a single-port SRS resource. For example, a 3-port SRS resource may be implemented by a combination of three 1-port SRS resources. For example, a 3-port SRS resource may be implemented by a combination of one 1-port SRS resource and one 2-port SRS resource.

[0167] In some embodiments, the multiple SRS resources constituting a 3-port SRS resource may be referred to as an SRS resource subset or an SRS resource group. In one example, a 3-port SRS resource may be implemented by combining three 1-port SRS resources, and the combination of the three 1-port SRS resources may constitute an SRS resource subset or an SRS resource group. In another example, a 3-port SRS resource may be implemented by combining a 1-port SRS resource and a 2-port SRS resource, and the combination of the 1-port SRS resource and the 2-port SRS resource may constitute an SRS resource subset or an SRS resource group. In some embodiments, the number of SRS resource subsets or SRS resource groups in an SRS resource set may be 1 or 2.

[0168] In some embodiments, the configuration information may include a first information element.

[0169] In some embodiments, the first information element may be used to indicate that the number of ports of a 3-port SRS resource in an SRS resource set is 3. In some embodiments, the first information element may be used to configure the number of SRS ports associated with the SRS resource set to 3. In one example, the first information element may be used to indicate that the number of SRS ports associated with the SRS resource set is 3. For example, the first information element may be used to directly indicate that the value of the SRS port number is 3. In one example, the first information element may be used to enable the number of SRS ports associated with the SRS resource set to be 3. For example, the first information element may be used to enable an SRS port number parameter. The SRS port number parameter indicates that the SRS port number is 3. After being enabled by the first information element, the SRS port number parameter takes effect.

[0170] In some embodiments, the configuration information may include a second information element.

[0171] In some embodiments, the second information element may be used to configure the function as a codebook.

[0172] In some embodiments, the second information element may be used to configure the function of the SRS resource set as a codebook.

[0173] In some embodiments, the second information element may be used to indicate that the SRS resource set is used as a codebook.

[0174] In some embodiments, the second information element may be a usage information element. In one example, the value of the usage information element may be equal to "codebook," indicating that the usage is codebook. For example, the value range of the usage information element may be {beamManagement, codebook, nonCodebook, antennaSwitching}. Therefore, for terminal 101, the value of the usage information element in the first message may be equal to codebook. Of course, the second information element may also be other information elements or signaling, which is not specifically limited in the present embodiment.

[0175] In step S303 , the network device 102 sends first information to the terminal 101 .

[0176] In some embodiments, terminal 101 may receive first information.

[0177] In some embodiments, the first information may be used to configure a resource allocation method of a 3-port SRS resource.

[0178] In some embodiments, the first information may be used to indicate a resource allocation method adopted by multiple SRS resources in the 3-port SRS resource.

[0179] In some embodiments, the name of the first information is not limited, and it can be, for example, transmission adjustment information, resource allocation method indication information, etc., and the embodiments of the present disclosure do not make specific limitations on this.

[0180] In some embodiments, the first information may be used to indicate that the 3-port SRS resources are allocated in a TDM or FDM manner.

[0181] In some embodiments, the first information may include resource allocation mode information. The resource allocation mode information may indicate at least one of the following: TDM and FDM.

[0182] In some embodiments, the resource allocation mode information may include one bit. In one example, when the bit is set to 1, the resource allocation mode information is used to indicate that the resource allocation mode is TDM; when the bit is set to 0, the resource allocation mode information is used to indicate that the resource allocation mode is FDM. In another example, when the bit is set to 0, the resource allocation mode information is used to indicate that the resource allocation mode is TDM; when the bit is set to 1, the resource allocation mode information is used to indicate that the resource allocation mode is non-FDM.

[0183] It can be understood that, in order to indicate that the resource allocation mode is FDM, the first information may indicate FDM or non-TDM, and the embodiment of the present disclosure does not make any specific limitation on this.

[0184] In some embodiments, the first information may include resource identification information. The resource identification information may be used to identify an SRS resource that adopts the resource allocation method indicated by the resource allocation method information.

[0185] In some embodiments, the resource identification information may be used to identify at least one of the following: an SRS resource set, or a 3-port SRS resource within the SRS resource set. In one example, the resource identification information may be used to identify the SRS resource set. In this case, all 3-port SRS resources within the SRS resource set may use the resource allocation method indicated by the resource allocation method information. In one example, the resource identification information may be used to identify a 3-port SRS resource. In this case, the 3-port SRS resource within the SRS resource set identified by the resource identification information may use the resource allocation method indicated by the resource allocation method information.

[0186] In some embodiments, the resource allocation method may be FDM. In this case, multiple SRS resources within a 3-port SRS resource may be located on the same exact symbol. In some embodiments, multiple SRS resources within a 3-port SRS resource may be located on the same one or more symbols. In one example, the three 1-port SRS resources comprising the 3-port SRS resource may be located on the same symbol. In another example, one 1-port SRS resource and one 2-port SRS resource comprising the 3-port SRS resource may be located on the same symbol.

[0187] In some embodiments, the resource allocation method may be TDM. In this case, multiple SRS resources in a 3-port SRS resource may be located on different symbols.

[0188] In some embodiments, the symbols where the multiple SRS resources in a 3-port SRS resource are located may be continuously distributed.

[0189] In some embodiments, the symbols where the multiple SRS resources in a 3-port SRS resource are located may be distributed non-contiguously.

[0190] In some embodiments, the three 1-port SRS resources constituting the 3-port SRS resource may be located on three consecutive symbols. For example, among the three 1-port SRS resources constituting the 3-port SRS resource, the first 1-port SRS resource may be located on the first symbol, the second 1-port SRS resource may be located on the second symbol, and the third 1-port SRS resource may be located on the third symbol.

[0191] In some embodiments, the three 1-port SRS resources constituting the 3-port SRS resource may be located on two consecutive symbols. For example, among the three 1-port SRS resources constituting the 3-port SRS resource, the first 1-port SRS resource may be located on one symbol, and the second and third 1-port SRS resources may be located on another symbol.

[0192] In some embodiments, one 1-port SRS resource and one 2-port SRS resource constituting a 3-port SRS resource may be located on two consecutive symbols. For example, in one 1-port SRS resource and one 2-port SRS resource constituting a 3-port SRS resource, the 1-port SRS resource may be located on one symbol, and the 2-port SRS resource may be located on another symbol.

[0193] In some embodiments, one 1-port SRS resource and one 2-port SRS resource constituting a 3-port SRS resource may be located on three consecutive symbols. For example, in one 1-port SRS resource and one 2-port SRS resource constituting a 3-port SRS resource, the 1-port SRS resource may be located on one symbol, and the 2-port SRS resource may be located on two other symbols.

[0194] In some embodiments, one 1-port SRS resource and one 2-port SRS resource constituting a 3-port SRS resource may be located on four consecutive symbols. For example, among the one 1-port SRS resource and one 2-port SRS resource constituting a 3-port SRS resource, the 1-port SRS resource may be located on two symbols, and the 2-port SRS resource may be located on another two symbols.

[0195] In some embodiments, the first information may further include symbol number information. The symbol number information may be used to indicate the number of symbols occupied by the 3-port SRS resource. For example, when the resource allocation mode is TDM, the symbol number information may indicate that the number of symbols occupied by the 3-port SRS resource is an integer greater than 1. It will be understood that when the resource allocation mode is TDM, the symbol number information is not required.

[0196] In some embodiments, multiple SRS resources in a 3-port resource may be allocated using a time-division multiplexing (TDM) approach. The 3-port SRS resource may include M SRS resource subsets. Each SRS resource subset may include at least one SRS resource. Each SRS resource subset may be located on a symbol. Here, M may be an integer greater than 1. For example, M may be equal to 2 or 3.

[0197] In some embodiments, the M SRS resource subsets may be located on M consecutive symbols.

[0198] In some embodiments, M SRS resource subsets may be repeatedly located on N symbols, where N may be an integer greater than 1. In some embodiments, N may be an integer multiple of M.

[0199] In some embodiments, when the resource allocation mode is TDM, multiple SRS resources in the 3-port SRS resource can be divided into multiple SRS resource subsets. Each SRS resource subset can correspond to a symbol. Each SRS resource subset can include an SRS resource located on the symbol in the 3-port SRS resource. In some embodiments, the 3-port SRS resource can include multiple SRS resource subsets (e.g., M), each of which can include at least one SRS resource from the multiple SRS resources of the 3-port SRS resource.

[0200] In some embodiments, the multiple SRS resource subsets corresponding to the 3-port SRS resource may be located on multiple consecutive symbols. In some embodiments, the multiple SRS resources may respectively correspond to multiple consecutive symbols.

[0201] In some embodiments, the number of consecutive symbols (eg, N) occupied by multiple SRS resource subsets of a 3-port SRS resource is configurable.

[0202] In some embodiments, the number of symbols may be configured by higher layer signaling. For example, the number of symbols may be configured by RRC signaling.

[0203] In some embodiments, the consecutive symbols corresponding to the multiple SRS resource subsets corresponding to the 3-port SRS resource may correspond to the 3-port SRS. In some embodiments, the consecutive symbols corresponding to the multiple SRS resource subsets corresponding to the 3-port SRS resource may correspond to 3 SRS ports.

[0204] In some embodiments, the number of symbols may be equal to 2 or 3. It is understandable that the number of symbols may also be other values, and the embodiments of the present disclosure do not impose any specific limitation on this.

[0205] In one example, the number of consecutive symbols occupied by the multiple SRS resource subsets of the 3-port SRS resource may be equal to 2. In this case, the 3-port SRS resource may include 2 SRS resource subsets, and each SRS resource subset may correspond to one of the 2 symbols. In addition, in one example, the 3-port SRS resource may have a repetition parameter of 2. Then, the 3-port SRS resource may be repeated 2 twice and occupy a total of 4 consecutive symbols (i.e., 2 times 2).

[0206] In some embodiments, the first information may be transmitted simultaneously with the configuration information. In some embodiments, the first information may be carried in the same message or signaling as the configuration information and sent to terminal 101. In some embodiments, the first information may be included in the configuration information. In this case, steps S303 and S304 may be implemented in a single transmission.

[0207] In some embodiments, the first information may be transmitted independently of the configuration information. In this case, step S303 may be implemented independently of step S304.

[0208] In some embodiments, the first information may be carried in higher-layer signaling, for example, signaling in a radio resource control (RRC) process.

[0209] In step S304, the terminal 101 determines the transmission parameters.

[0210] In some embodiments, the terminal 101 may determine the sending parameters based on the first information.

[0211] In some embodiments, terminal 101 may determine transmission parameters corresponding to a 3-port SRS resource.

[0212] In some embodiments, the transmission parameter may include at least one of the following: transmission power of three SRS ports corresponding to the 3-port SRS resource, and resource location of the 3-port SRS resource.

[0213] In some embodiments, the transmission parameter may be related to at least one of the following: a power backoff policy, a power boost policy, and a conflict drop policy.

[0214] In some embodiments, the transmission parameters may be determined taking into account at least one of power backoff, power boosting, and collision discarding.

[0215] In some embodiments, a power backoff policy may be applicable to a power backoff situation. In some embodiments, a power backoff policy may be associated with power backoff.

[0216] In some embodiments, the power boost policy may be applicable to power boost situations. In some embodiments, the power boost policy may be associated with power boost.

[0217] In some embodiments, the conflict discarding strategy may be applicable to the conflict discarding situation.In some embodiments, the conflict discarding strategy may be associated with the conflict discarding.

[0218] In some embodiments, the power backoff policy and the power boost policy may be related to the transmit power of the three SRS ports corresponding to the three-port SRS resource.

[0219] In some embodiments, the conflict discarding policy may be related to the transmit powers of the three SRS ports corresponding to the three-port SRS resource and / or the resource location of the three-port SRS resource.

[0220] In some embodiments, power allocation may refer to determining the transmit power of each of the three SRS ports of a three-port SRS resource.

[0221] In some embodiments, the transmit power of each of the three SRS ports of the 3-port SRS resource may be determined based on the corresponding SRS power on each symbol. In some embodiments, the transmit power of each of the three SRS ports of the 3-port SRS resource may be determined by dividing the corresponding SRS power on each symbol by the number of ports on that symbol.

[0222] In some embodiments, the SRS transmission power corresponding to each symbol in the plurality of symbols may be evenly distributed between the 3-port SRS resource and the at least one SRS port corresponding to the symbol.

[0223] In some embodiments, the SRS transmission power corresponding to each symbol of the plurality of symbols is evenly distributed among at least one SRS port corresponding to the SRS resource included in the SRS resource subset corresponding to each symbol.

[0224] In some embodiments, the resource allocation method may be TDM, and the 1-port SRS resource of the 3-port SRS resource may be located on one symbol, and the 2-port SRS resource may be located on another symbol. In this case, at the symbol where the SRS port corresponding to the 1-port SRS resource is located, the transmit power of the SRS port may be equal to the SRS power at that symbol divided by 1. Furthermore, at the symbol where the SRS port corresponding to the 2-port SRS resource is located, the transmit power of each port may be equal to the SRS power at that symbol divided by 2.

[0225] In some embodiments, a 3-port SRS resource may include two SRS resource subsets, and the two SRS resource subsets correspond to different symbols in two consecutive symbols. One SRS resource subset may correspond to one SRS port. The transmit power of the SRS port may be equal to the SRS transmit power at the symbol divided by 1. Another SRS resource subset may correspond to two SRS ports. The transmit power of each of the two SRS ports may be equal to the SRS transmit power at the symbol corresponding to the other SRS resource subset divided by 2.

[0226] In some embodiments, the resource allocation method may be FDM, and the three 1-port SRS resources of the 3-port SRS resource may be located on one symbol. In this case, the transmit power of each SRS port of the 3-port SRS resource may be equal to the SRS power at that symbol divided by 3. In other words, the transmit power corresponding to the 3-port SRS resource may be evenly distributed among the three SRS ports.

[0227] In some embodiments, the three SRS ports corresponding to the 3-port SRS resource may have the same or substantially the same transmit power. In one example, the three SRS ports corresponding to the 3-port SRS resource may have consistent transmit power. In another example, the three SRS ports corresponding to the 3-port SRS resource may have substantially the same transmit power. For example, the difference between any two of the three SRS ports corresponding to the 3-port SRS resource may be less than a preset value.

[0228] It should be noted that the SRS power used in the above calculation of the transmit power of each SRS port may be power that has been processed linearly. In other words, the SRS power may be a linear value.

[0229] In some embodiments, power backoff may mean that the SRS power may be reduced when the transmit power of other channels is increased.

[0230] In some embodiments, the linear sum of the transmit power of the PUSCH, physical uplink control channel (PUCCH), physical random access channel (PRACH), and SRS over a symbol may be a constant value. Therefore, if the power of one or more of the PUSCH, PUCCH, and PRACH increases, the SRS power may need to be reduced. This is referred to as SRS power backoff.

[0231] In some embodiments, the power backoff strategy may include power backoff for multiple symbols or power backoff for some of the multiple symbols. In some embodiments, the resource allocation method may be TDM. In this case, power backoff may be applied to all or some of the symbols occupied by the 3-port SRS resource.

[0232] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to three symbols respectively. For example, the three 1-port SRS resources of a 3-port SRS resource may be located on three symbols respectively. In some embodiments, power backoff may be applied to all three symbols. In this case, power backoff may be applied to the three SRS ports corresponding to the three symbols. In one example, if power backoff is required for one of the three symbols, power backoff may be applied to the three SRS ports corresponding to all three symbols. In another example, if power backoff is required for any two of the three symbols, power backoff may be applied to the three SRS ports corresponding to all three symbols. In some embodiments, power backoff may be applied to some of the three symbols. In this case, power backoff may be applied to one or more SRS ports corresponding to some of the three symbols. In another example, power backoff may be applied only to the symbols requiring power backoff. In another example, if power backoff is required for one of the three symbols, power backoff may be applied to the one SRS port corresponding to that symbol. In one example, if power backoff is required on any two symbols among the three symbols, power backoff may be implemented on one SRS port corresponding to the two symbols.

[0233] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to two symbols respectively. For example, the three 1-port SRS resources of the 3-port SRS resource may be located on two symbols respectively. For example, one 1-port SRS resource of the 3-port SRS resource may be located on one symbol, and one 2-port SRS resource of the 3-port SRS resource may be located on another symbol. In some embodiments, power backoff may be performed on all two symbols. In this case, power backoff may be performed on the three SRS ports corresponding to the two symbols. In one example, if power backoff is required for one of the two symbols, power backoff may be performed on all three SRS ports corresponding to the two symbols. In some embodiments, power backoff may be performed on a portion of the two symbols. In this case, power backoff may be performed on one or more SRS ports corresponding to the portion of the two symbols. In one example, power backoff may be performed only on the symbols requiring power backoff. In one example, if power backoff is required for one of the two symbols, power backoff may be performed on one or both SRS ports corresponding to that symbol. For example, if a symbol requiring power backoff corresponds to a 1-port SRS resource, the power backoff for that symbol may be the power backoff for the 1 SRS port corresponding to the 1-port SRS resource. For example, if a symbol requiring power backoff corresponds to a 2-port SRS resource, the power backoff for that symbol may be the power backoff for the 2 SRS ports corresponding to the 2-port SRS resource.

[0234] In some embodiments, when power backoff is performed for all symbols, the power backoff amounts (i.e., power backoff amounts) corresponding to the three SRS ports on all symbols may be the same. In other words, the transmit power reduction values ​​corresponding to all three SRS ports may be equal.

[0235] In some embodiments, when power backoff is performed on some symbols, the power backoff amplitude corresponding to at least one SRS port on each symbol may be the same. In other words, the transmit power reduction value corresponding to at least one SRS port on the symbol requiring power backoff may be equal.

[0236] In some embodiments, power boosting may refer to increasing SRS power.

[0237] In some embodiments, the power boost strategy may include: power boost for multiple symbols, power boost for some of the multiple symbols. In some embodiments, the resource allocation method may be TDM. In this case, the power boost may be applied to all or some of the symbols occupied by the 3-port SRS resource.

[0238] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to three symbols respectively. For example, the three 1-port SRS resources of a 3-port SRS resource may be located on three symbols respectively. In some embodiments, power boosting may be performed on all three symbols. In this case, power boosting may be performed on the three SRS ports corresponding to the three symbols. In one example, if power boosting is required on one of the three symbols, power boosting may be performed on the three SRS ports corresponding to all three symbols. In another example, if power boosting is required on any two of the three symbols, power boosting may be performed on the three SRS ports corresponding to all three symbols. In some embodiments, power boosting may be performed on some of the three symbols. In this case, power boosting may be performed on one or more SRS ports corresponding to some of the three symbols. In another example, power boosting may be performed only on the symbols requiring power boosting. In another example, if power boosting is required on one of the three symbols, power boosting may be performed on the one SRS port corresponding to that symbol. In one example, if power boosting is required on any two symbols among the three symbols, power boosting may be performed on one SRS port corresponding to the two symbols.

[0239] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to two symbols respectively. For example, the three 1-port SRS resources of the 3-port SRS resource may be located on two symbols respectively. For example, one 1-port SRS resource of the 3-port SRS resource may be located on one symbol, and one 2-port SRS resource of the 3-port SRS resource may be located on another symbol. In some embodiments, power boosting may be performed on all two symbols. In this case, power boosting may be performed on the three SRS ports corresponding to the two symbols. In one example, if power boosting is required for one of the two symbols, power boosting may be performed on all three SRS ports corresponding to the two symbols. In some embodiments, power boosting may be performed on a portion of the two symbols. In this case, power boosting may be performed on one or more SRS ports corresponding to the portion of the two symbols. In one example, power boosting may be performed only on the symbols requiring power boosting. In another example, if power boosting is required for one of the two symbols, power boosting may be performed on one or both SRS ports corresponding to that symbol. For example, if a symbol requiring power boost corresponds to a 1-port SRS resource, the power boost for that symbol may be a power boost for the 1 SRS port corresponding to the 1-port SRS resource. For example, if a symbol requiring power boost corresponds to a 2-port SRS resource, the power boost for that symbol may be a power boost for the 2 SRS ports corresponding to the 2-port SRS resource.

[0240] In some embodiments, when power boosting is performed on all symbols, the power boost amounts (i.e., power boost amounts) corresponding to the three SRS ports on all symbols may be the same. In other words, the increase in transmit power corresponding to all three SRS ports may be equal.

[0241] In some embodiments, when power boosting is performed on some symbols, the power boosting magnitude corresponding to at least one SRS port on each symbol may be the same. In other words, the increase in transmit power corresponding to at least one port on the symbol requiring power boosting may be equal.

[0242] In some embodiments, after power backoff and / or power boost, it can still be ensured that the three SRS ports corresponding to the three-port SRS resource have the same or substantially the same transmit power.

[0243] In some embodiments, conflict discarding may refer to discarding an SRS resource when it conflicts with transmissions from other channels. It is understood that the time-frequency domain resources occupied by the 3-port SRS resource may partially or completely overlap with the time-frequency domain resources occupied by transmissions from other channels. In this case, the conflicting SRS resource may be discarded to avoid the conflict. For example, if the conflicting other channel has a higher priority, the SRS resource may be discarded.

[0244] In some embodiments, the conflict discarding strategy may include: conflict discarding for multiple symbols, and conflict discarding for some symbols among the multiple symbols.

[0245] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to three symbols, respectively. For example, the three 1-port SRS resources of a 3-port SRS resource may be located on three symbols, respectively. In some embodiments, collision discarding may involve discarding all three symbols. In this case, collision discarding may be performed on all three symbols. In one example, if one of the three symbols needs to be discarded, then all three symbols may be discarded. In one example, if any two of the three symbols need to be discarded, then all three symbols may be discarded. In some embodiments, collision discarding may involve discarding some of the three symbols. In one example, collision discarding may only be performed on the symbols that need to be discarded. In one example, if one of the three symbols needs to be discarded, then that symbol may be discarded. In another example, if any two of the three symbols need to be discarded, then both symbols may be discarded.

[0246] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to two symbols respectively. For example, the three 1-port SRS resources of the 3-port SRS resource may be located on two symbols respectively. For example, one 1-port SRS resource of the 3-port SRS resource may be located on one symbol, and one 2-port SRS resource of the 3-port SRS resource may be located on another symbol. In some embodiments, collision discarding may involve discarding all two symbols. In this case, collision discarding may be performed on both symbols. In one example, if one of the two symbols needs to be discarded, then all two symbols may be discarded. In some embodiments, collision discarding may involve discarding only some of the two symbols. In this case, collision discarding may be performed on some of the two symbols. In one example, collision discarding may only involve discarding the symbol that needs to be discarded. In one example, if one of the two symbols needs to be discarded, then that symbol may be discarded. For example, the symbol requiring collision discarding may correspond to a 1-port SRS resource. For example, the symbol requiring collision discarding may correspond to a 2-port SRS resource.

[0247] In some embodiments, after discarding some symbols, if the number of ports of the 3-port SRS resource remaining in the remaining symbols is less than 3, all symbols may be discarded. In this case, the retained 3-port SRS resource cannot be used to transmit SRS via the three ports. In one example, the three 1-port SRS resources of the 3-port SRS resource may be located on three symbols respectively. After partially discarding any one of the three symbols, the number of ports of the 3-port SRS resource remaining in the remaining two symbols is equal to 2. In this case, all three symbols may be discarded. In one example, one 1-port SRS resource of the 3-port SRS resource may be located on one symbol, and one 2-port SRS resource may be located on two symbols. After partially discarding any one of the two symbols where the 2-port SRS resource is located, the number of ports of the 3-port SRS resource remaining in the remaining two symbols is equal to 3. In this case, it is not necessary to discard all three symbols; only one symbol needs to be discarded.

[0248] At this point, in step S304 , the transmit power of each port of the 3-port SRS resource and the symbol where the 3-port SRS resource is located can be determined.

[0249] In step S305 , the terminal 101 sends an SRS to the network device 102 .

[0250] In some embodiments, terminal 101 may send SRS via a 3-port SRS resource.

[0251] In some embodiments, terminal 101 may send SRS according to the sending parameters.

[0252] In some embodiments, the SRS may be transmitted via three transmit antennas of the terminal 101. The three transmit antennas may correspond to three SRS ports of a three-port SRS resource.

[0253] In some embodiments, network device 102 may receive an SRS.

[0254] In some embodiments, SRS may be transmitted in 1 or 2 beam directions.

[0255] In some embodiments, the number of configured 3-port SRS resources may be 1. In one example, one SRS resource subset may be configured, and the SRS resource subset may be configured with one 3-port SRS resource. In another example, one SRS resource set may be configured, and the SRS resource set may include one 3-port SRS resource. In this case, the SRS may be transmitted in the beam direction corresponding to the 3-port SRS resource.

[0256] In some embodiments, the number of configured 3-port SRS resources may be two. In one example, two SRS resource subsets may be configured, each of which may be configured with one 3-port SRS resource. In another example, two SRS resource sets may be configured, each of which includes one 3-port SRS resource. In this case, the two 3-port SRS resources may correspond to different beam directions. SRS may be transmitted in different beam directions.

[0257] In step S306 , the network device 102 sends second information to the terminal 101 .

[0258] In some embodiments, terminal 101 may receive second information.

[0259] In some embodiments, the second information may be used to indicate the first SRS resource.

[0260] In some embodiments, the name of the second information is not limited, and it can be, for example, resource indication information, resource scheduling information, SRS resource indication information, etc.

[0261] In some embodiments, the second information may be carried in downlink control information (DCI) signaling.

[0262] In some embodiments, the DCI signaling may be carried in a physical downlink control channel (PDCCH).

[0263] In some embodiments, the second information may include a fourth information element.

[0264] In some embodiments, the fourth information element may be used to indicate the first SRS resource.

[0265] In some embodiments, the fourth information element may be used to indicate a first SRS resource used for PUSCH transmission based on a codebook, where the first resource is a 3-port SRS resource in an SRS resource set.

[0266] In some embodiments, the fourth information element may be an SRS resource indication.

[0267] In some embodiments, the fourth information element may be an SRI (SRS resource indicator) information element.

[0268] In some embodiments, the first SRS resource may be a 3-port SRS resource.

[0269] In some embodiments, the network device 102 may obtain uplink CSI based on the SRS sent by the terminal 101 through the three SRS ports.

[0270] In some embodiments, the uplink CSI may be used to indicate the status of an uplink channel.

[0271] In some embodiments, the network device 102 may evaluate the quality of uplink channels corresponding to the three SRS ports of the three-port SRS resource based on the uplink CSI, and determine the first SRS resource according to the evaluation result.

[0272] In some embodiments, the first SRS resource may be a 3-port SRS resource associated with an uplink channel with the best quality in the SRS resource set.

[0273] In some embodiments, the uplink CSI is used for codebook-based PUSCH transmission. Specifically, the uplink CSI can be used to determine the 3-port SRS resources for codebook-based PUSCH transmission.

[0274] In step S307 , the terminal 101 sends a PUSCH to the network device 102 .

[0275] In some embodiments, network device 102 may receive the PUSCH.

[0276] In some embodiments, the terminal 101 may perform codebook-based PUSCH transmission using the first SRS resource specified by the second information.

[0277] In some embodiments, the terminal 101 may perform codebook-based PUSCH transmission through the SRS port corresponding to the first SRS resource.

[0278] In some embodiments, the terminal 101 may perform codebook-based PUSCH transmission through the antenna port corresponding to the first SRS resource.

[0279] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0280] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0281] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0282] In some embodiments, the terms "DCI", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0283] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" may be used interchangeably, and terms such as "PUSCH" and "UL data" may be used interchangeably.

[0284] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0285] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0286] In some embodiments, terms such as "resource block (RB)", "physical resource block (PRB)", "sub-carrier group (SCG)", "resource element group (REG)", "PRB pair", "RB pair", "resource element (RE)", and "sub-carrier" can be used interchangeably.

[0287] 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 used interchangeably.

[0288] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0289] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0290] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0291] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "some", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, some A, any A, or first A, etc., but not limited to this.

[0292] In some embodiments, the determination or judgment can be performed 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.

[0293] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0294] The communication method according to the embodiments of the present disclosure may include at least one of steps S301 to S307. For example, step S303 may be implemented as an independent embodiment, step S304 may be implemented as an independent embodiment, and a combination of steps S303 and S304 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0295] In some embodiments, steps S301 , S302 , S304 , S305 , S306 , and S307 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0296] In some embodiments, steps S301 , S302 , S303 , S305 , S306 , and S307 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0297] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0298] FIG4 is an exemplary flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , an embodiment of the present disclosure relates to a communication method. The communication method in this embodiment can be executed by terminal 101. The communication method includes steps S401 to S407.

[0299] In step S401, capability information is sent.

[0300] The optional implementation of step S401 can refer to the optional implementation of step S301 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0301] In some embodiments, the terminal 101 may send capability information to the network device 102, but is not limited thereto and may also send capability information to other entities.

[0302] In step S402, configuration information is obtained.

[0303] The optional implementation of step S402 can refer to the optional implementation of step S302 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0304] In some embodiments, the terminal 101 may receive configuration information sent by the network device 102, but is not limited thereto and may also receive configuration information sent by other entities.

[0305] In some embodiments, terminal 101 may obtain configuration information through a higher layer.

[0306] In some embodiments, the configuration information may be used to configure a 3-port SRS resource for the terminal 101 .

[0307] In some embodiments, the configuration information may be determined by the terminal 101 based on the capability information.

[0308] In step S403, first information is obtained.

[0309] The optional implementation of step S403 can refer to the optional implementation of step S303 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0310] In some embodiments, the terminal 101 may receive the first information sent by the network device 102, but is not limited thereto and may also receive the first information sent by other entities.

[0311] In some embodiments, the terminal 101 may obtain the first information through a higher layer.

[0312] In some embodiments, the terminal 101 may perform processing to obtain the first information.

[0313] In some embodiments, the first information may be used to configure a resource allocation method of a 3-port SRS resource.

[0314] In step S404, the sending parameters are determined.

[0315] The optional implementation of step S404 can refer to the optional implementation of step S304 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0316] In some embodiments, the determination of the transmission parameters may take into account the first information.

[0317] In step S405, an SRS is sent.

[0318] The optional implementation of step S405 can refer to the optional implementation of step S305 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0319] In some embodiments, the terminal 101 may send an SRS to the network device 102 , but is not limited thereto and may also send an SRS to other entities.

[0320] In some embodiments, SRS may be used by the network device 102 to determine the first SRS resource. Optional implementations thereof may refer to the optional implementations of step S306 in FIG3 and other related parts of the embodiments involved in FIG3 , which will not be described in detail here.

[0321] In step S406, the second information is obtained.

[0322] The optional implementation of step S406 can refer to the optional implementation of step S306 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0323] In some embodiments, the terminal 101 may receive the second information sent by the network device 102, but is not limited thereto and may also receive the second information sent by other entities.

[0324] In some embodiments, terminal 101 may obtain the second information from a higher layer.

[0325] In some embodiments, the second information may be determined by the network device 102 based on the SRS.

[0326] In step S407, PUSCH is transmitted.

[0327] The optional implementation of step S407 can refer to the optional implementation of step S307 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0328] In some embodiments, the terminal 101 may send a PUSCH to the network device 102, but is not limited thereto and may also send capability information to other entities.

[0329] The communication method according to the embodiment of the present disclosure may include at least one of steps S401 to S407. For example, step S403 may be implemented as an independent embodiment, step S404 may be implemented as an independent embodiment, and a combination of steps S403 and S404 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0330] In some embodiments, steps S401 , S402 , S404 , S405 , S406 , and S407 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0331] In some embodiments, steps S401 , S402 , S403 , S405 , S406 , and S407 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0332] FIG5 is an exemplary flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , an embodiment of the present disclosure relates to a communication method. The communication method in this embodiment can be executed by network device 102. The communication method includes steps S501 to S506.

[0333] In step S501, capability information is acquired.

[0334] The optional implementation of step S501 can refer to the optional implementation of step S301 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0335] In some embodiments, the network device 102 may receive capability information sent by the terminal 101, but is not limited thereto and may also receive capability information sent by other entities.

[0336] In some embodiments, network device 102 may obtain capability information specified by the protocol.

[0337] In some embodiments, network device 102 may obtain capability information from higher layers.

[0338] In some embodiments, the network device 102 may perform processing to obtain the capability information.

[0339] In some embodiments, step S501 may be omitted, and the network device 102 may autonomously implement the functions indicated by the capability information, or the above functions may be default or by default.

[0340] In step S502, configuration information is sent.

[0341] The optional implementation of step S502 can refer to the optional implementation of step S302 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0342] In some embodiments, the network device 102 may send configuration information to the terminal 101, but is not limited thereto and may also send configuration information to other entities.

[0343] In some embodiments, the configuration information can be used by the terminal 101 to send SRS through the SRS port corresponding to the SRS resource set. Its optional implementation method can refer to the optional implementation method of step S305 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0344] In step S503, the first information is sent.

[0345] The optional implementation of step S503 can refer to the optional implementation of step S303 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0346] In some embodiments, the network device 102 may send the first information to the terminal 101, but is not limited thereto and may also send the first information to other entities.

[0347] In step S504, the SRS is acquired.

[0348] Optional implementations of step S504 can refer to the optional implementations of step S304 in FIG. 3 and other related parts in the embodiment involved in FIG. 3 , which will not be described in detail here.

[0349] In some embodiments, the network device 102 may receive an SRS sent by the terminal 101 , but is not limited thereto and may also receive an SRS sent by other entities.

[0350] In step S505,

[0351] The optional implementation of step S505 can refer to the optional implementation of step S306 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0352] In some embodiments, the network device 102 may send the second information to the terminal 101 , but is not limited thereto and may also send the second information to other entities.

[0353] In some embodiments, the second information can be used by the terminal 101 to send PUSCH through the SRS port corresponding to the first SRS resource. Its optional implementation method can refer to the optional implementation method of step S307 in Figure 3 and other related parts of the embodiment involved in Figure 3, which will not be repeated here.

[0354] In step S506, PUSCH is acquired.

[0355] The optional implementation of step S506 can refer to the optional implementation of step S307 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0356] In some embodiments, the network device 102 may receive a PUSCH sent by the terminal 101, but is not limited thereto and may also receive a PUSCH sent by other entities.

[0357] The communication method involved in the embodiment of the present disclosure may include at least one of steps S501 to S506. For example, step S503 may be implemented as an independent embodiment, but is not limited thereto.

[0358] In some embodiments, steps S501 , S502 , S504 , S505 , and S506 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0359] Figure 6 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure. As shown in Figure 6, an embodiment of the present disclosure relates to a communication method. The communication method includes steps S601 to S602.

[0360] In step S601 , the network device 102 sends first information to the terminal 101 .

[0361] The optional implementation of step S601 can refer to the optional implementation of step S303 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0362] In step S602 , the terminal 101 determines the transmission parameters.

[0363] The optional implementation of step S602 can refer to the optional implementation of step S304 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0364] The communication method involved in the embodiment of the present disclosure may include at least one of step S601 and step S602. For example, step S603 may be implemented as an independent embodiment, and step S604 may be implemented as an independent embodiment, but is not limited thereto.

[0365] In some embodiments, step S601 is optional and may be omitted or replaced in different embodiments.

[0366] In some embodiments, step S602 is optional and may be omitted or replaced in different embodiments.

[0367] In the following, the technical solutions of the embodiments of the present disclosure are exemplarily described through specific implementation methods.

[0368] In some embodiments, supporting the implementation of equivalent 3-ports through multiple SRS resources can be achieved by directly configuring the SRS or distinguishing different SRS configurations as TDM / FDM through high-layer signaling.

[0369] In some embodiments, when different SRS resources in the same SRS resource set are configured in a "TDM" manner, "1+1+1" (i.e., 3 1-port SRS resources) or "1+2" ​​(i.e., 1 1-port SRS resource and 1 2-port SRS resource) supports different SRS resources to be configured on different consecutive symbols.

[0370] In some embodiments, SRS configuration may be as follows: X SRS resource subsets / resource groups (i.e., 3-port SRS resources) may be configured in one SRS resource set. These X SRS resource subsets / resource groups correspond to different beam configurations. X may be a positive integer.

[0371] In one example, each SRS resource subset / resource group corresponds to a group of three SRS ports, including multiple 1 / 2-port SRS resources.

[0372] In one example, the corresponding SRS resource / SRS port on each symbol can also be defined as an SRS resource subset; that is, each SRS resource subset includes 1 or 2 SRS ports, and a group of equivalent 3-port SRSs are configured by high-level signaling. The number of symbols S included in the SRS resource subset is configured, such as S=2, and the corresponding configured 2 consecutive symbols correspond to an equivalent 3-port SRS.

[0373] In some embodiments, the SRS port power is calculated as follows: the SRS port power is averaged according to the corresponding SRS power on each OFDM symbol and the number of ports corresponding to the SRS resources configured on the symbol.

[0374] In some embodiments, the power backoff principle is described. In some contexts, for power allocation purposes, if the UE is configured with uci-MuxWithDiffPrio and the UE multiplexes HARQ-ACK information in the PUSCH, the priority index of the PUSCH is determined by the larger of (a) the priority index of the PUSCH and (b) the larger of the larger priority index of the HARQ-ACK information. When determining the total transmit power on all serving cells in the frequency range corresponding to a symbol of a transmission opportunity, the UE does not include the power of the transmission starting after the corresponding symbol of the transmission opportunity when deciding the transmit power. The total UE transmit power on the corresponding symbol in the time slot is defined as the linear sum of the UE transmit power of PUSCH, PUCCH, PRACH and SRS in the symbol of the time slot. If there is a higher priority PUSCH / PUCCH / PRACH transmitted at a higher power at this time, the SRS on the serving cell on that symbol will be power adjusted by power backoff.

[0375] In some embodiments, for the equivalent 3-port SRS transmitted by TDM, if this situation occurs on a symbol, in order to obtain a more accurate UL CSI estimate, different methods can be used to perform power backoff. In one example, if the SRS needs to be power backed off on a symbol, all ports / SRS port subsets within the same SRS resource group / resource subset are power backed off together. Here, an SRS resource group / resource subset or different SRS resource subsets of different equivalent 3 ports correspond to a set of equivalent 3-port SRS resource configurations. In one example, if the SRS needs to be power backed off on a symbol, only all SRS ports / SRS port subsets on that symbol are power backed off (this corresponds to suboptimal UL CSI acquisition).

[0376] In some embodiments, the power boost principle is described. In one example, if power boost is performed, all ports / SRS port subsets within the same SRS resource group / resource subset need to be power boosted together, and the power boost amplitude of each port should be the same. For example, the equivalent 3-port is implemented by a single-port and a 2-port SRS resource configuration, and SRS comb=2 is configured at the same time. If a 3dB power boost can be achieved on the symbol of the SRS resource corresponding to the single-port, the 2-port SRS resource sent on another SRS symbol should also have a 3dB power boost. In one example, if power boost can be performed on a certain symbol, power boost is performed only on the SRS port / SRS port subset corresponding to the symbol.

[0377] In some embodiments, SRS discarding rules are described. Different approaches can be used to handle the situation where an SRS symbol conflicts with other higher-priority channel transmissions and needs to be discarded. In one example, an equivalent 3-port SRS resource group / resource subset is discarded as a whole. In another example, conflicting SRS symbols are discarded individually. In another example, a 1 / 2 transmission method is used, and if a complete 3-port SRS transmission is not completed after discarding, the entire SRS is discarded.

[0378] In some embodiments, when it is "non-TDM" mode or "FDM", each 3-port equivalent SRS resource group / resource subset can be configured on the same symbol simultaneously according to the FDM mode, and different 3-port equivalent SRS resource groups can be configured on different symbols.

[0379] In some embodiments, the SRS port power is transmitted on each non-zero SRS port according to the average distribution of all valid port powers in an SRS resource group / SRS resource subset; for example, a 3-port configuration is implemented as 1 single port plus 1 2-port SRS resource, then the power of each SRS port is equal to the SRS power divided by the number of ports, which is 3.

[0380] In some embodiments, the transmission power of SRS on implementation 1 can be expressed as:

[0381] Here, the elements in formula (1) are explained:

[0382] -P CMAX,f,c (i) The maximum output power of carrier f of serving cell c in SRS transmission opportunity i configured by the UE;

[0383] -P O_SRS,b,f,c (q s ) is the effective UL BWP b and SRS resource set q for carrier f of serving cell c s Power;

[0384] -M SRS,b,f,c (i) is the SRS bandwidth on the effective UL BWP b of carrier f in serving cell c for SRS transmission opportunity i; μ is the SCS configuration;

[0385] -α SRS,b,f,c is the effective UL BWP b and SRS resource set q for carrier f of serving cell c s provided;

[0386] -PL b,f,c (q d ) is the effective UL BWP b and SRS resource set q for carrier f of serving cell cs , RS resource index q is used by UE d Calculate the downlink path loss estimate.

[0387] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0388] The present disclosure also provides a communication device for implementing any of the above methods. For example, the present disclosure provides a communication device including units or modules for implementing each step performed by a network device in any of the above methods. For example, the present disclosure provides a communication device including units or modules for implementing each step performed by a terminal in any of the above methods.

[0389] It should be understood that the division of the various units or modules in the above devices is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above devices, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0390] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit, a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by a dedicated integrated circuit or a programmable logic device, such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above 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.

[0391] FIG7 is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure. As shown in FIG7 , the communication device 700 may include at least one of the following: a transceiver module 701 and a processing module 702 .

[0392] In the first aspect, the communication device 700 may be a terminal 101. In some embodiments, the processing module 702 may be configured to: determine a transmission parameter corresponding to a 3-port SRS resource, wherein the transmission parameter is used to implement SRS transmission based on the 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink CSI through three SRS ports; wherein the terminal is a 3-transmit antenna terminal. Optionally, the transceiver module 701 may be configured to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods (e.g., steps S301, S302, S303, S305, S306, and S307), which are not described in detail here. Optionally, the processing module 702 may be configured to perform at least one of the other steps (e.g., step S804) performed by the terminal 101 in any of the above methods except for the communication steps such as sending and / or receiving, which are not described in detail here.

[0393] In a second aspect, the communication apparatus 700 may be the network device 102. In some embodiments, the transceiver module 701 may be configured to transmit first information, where the first information indicates that a three-port SRS resource is allocated using a TDM or FDM method, and the three-port SRS resource is used to obtain uplink CSI via three SRS ports. Optionally, the transceiver module 701 may be configured to perform at least one of the communication steps (e.g., steps S301, S302, S303, S305, S306, and S307) performed by the network device 102 in any of the above methods, which are not further described herein.

[0394] In some embodiments, the transceiver module 701 may include a transmitting module and / or a receiving module. The transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0395] In some embodiments, the processing module 702 can be a single module or include multiple submodules. Optionally, the multiple submodules each execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0396] Figure 8A is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure. Communication device 8100 can be a network device, a terminal, or a chip, chip system, or processor that supports a network device in implementing any of the above methods. It can also be a chip, chip system, or processor that supports a terminal in implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0397] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0398] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, steps S301, S302, S303, S305, S306, and S307, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S304, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0399] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memories 8103 and may be configured to receive data from the memories 8103 or other devices, or to send data to the memories 8103 or other devices. For example, the interface circuits 8104 may read data stored in the memories 8103 and send the data to the processor 8101.

[0400] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0401] FIG8B is a schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present invention is not limited thereto.

[0402] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0403] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0404] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., steps S301, S302, S303, S305, S306, and S307) of the aforementioned method. For example, the interface circuit 8202 performing the communication steps (e.g., steps S301, S302, S303, S305, S306, and S307) of the aforementioned method means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., step S304, but not limited thereto).

[0405] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0406] The embodiments of the present disclosure further provide a storage medium having instructions stored thereon. When the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0407] The embodiment of the present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0408] The embodiments of the present disclosure further provide a computer program, which, when executed on a computer, enables the computer to execute any of the above methods.

[0409] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0410] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A communication method, performed by a terminal, wherein: The method comprises: Determining a transmission parameter corresponding to a 3-port sounding reference signal (SRS) resource, wherein the transmission parameter is used to implement SRS transmission based on the 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink channel state information (CSI) through three SRS ports; The terminal is a terminal with three transmitting antennas.

2. The method according to claim 1, wherein The sending parameters include at least one of the following: The transmit power of the three SRS ports corresponding to the three-port SRS resource; The resource location of the 3-port SRS resource.

3. The method according to claim 1 or 2, wherein: The 3-port SRS resource is implemented based on one of the following SRS resource combinations: 3 1-port SRS resources; One 1-port SRS resource and one 2-port SRS resource.

4. The method according to claim 3, wherein: The multiple SRS resources in the 3-port SRS resources are allocated in a time division multiplexing (TDM) or frequency division multiplexing (FDM) manner.

5. The method according to claim 3 or 4, wherein: A plurality of SRS resources in the 3-port SRS resource are located on at least one symbol.

6. The method according to claim 5, wherein: The multiple SRS resources in the 3-port resources are allocated in an FDM manner, and all the SRS resources in the 3-port SRS resources are located on one symbol.

7. The method according to claim 6, wherein: The SRS transmission power corresponding to the 3-port SRS resource is evenly distributed among the 3 SRS ports.

8. The method according to claim 5, wherein The multiple SRS resources in the 3-port resource are allocated in a TDM manner, the 3-port SRS resource includes M SRS resource subsets, each SRS resource subset includes at least one SRS resource, and each SRS resource subset is located on a symbol; Wherein, M is an integer and M is greater than 1.

9. The method according to claim 8, wherein The M SRS resource subsets are located on M consecutive symbols.

10. The method according to claim 8 or 9, wherein: The M SRS resource subsets are repeatedly located on N symbols, where N is an integer multiple of M; Wherein, N is an integer and N is greater than 1.

11. The method according to claim 10, wherein: N is configurable.

12. The method according to any one of claims 9 to 11, wherein The SRS transmission power corresponding to each symbol is evenly distributed among at least one SRS port corresponding to the SRS resource included in the SRS resource subset corresponding to each symbol.

13. The method according to any one of claims 1 to 12, wherein The sending parameter is related to at least one of the following: Power fallback strategy; Power boost strategy; Conflict discard strategy.

14. The method according to claim 13, wherein: The multiple SRS resources in the 3-port resource are allocated in a TDM manner, and the multiple SRS resources in the 3-port SRS resource are located on multiple symbols; The power backoff strategy includes: power backoff for the multiple symbols and power backoff for some of the multiple symbols.

15. The method according to claim 14, wherein Each symbol associated with the power backoff corresponds to the same power backoff amount.

16. The method according to claim 13, wherein: The multiple SRS resources in the 3-port resource are allocated in a TDM manner, and the multiple SRS resources in the 3-port SRS resource are located on multiple symbols; The power boost strategy includes: power boost for the multiple symbols, and power boost for some symbols among the multiple symbols.

17. The method according to claim 16, wherein Each symbol associated with the power boost corresponds to the same power boost amount.

18. The method according to any one of claims 12 to 17, wherein The three SRS ports corresponding to the three-port SRS resource have the same transmission power.

19. The method according to claim 13, wherein The multiple SRS resources in the 3-port resource are allocated in a TDM manner, and the multiple SRS resources in the 3-port SRS resource are located on multiple symbols; The conflict discarding strategy includes conflict discarding for the multiple symbols and conflict discarding for some symbols among the multiple symbols.

20. The method according to claim 19, wherein In a case where the 3-port SRS resource cannot implement 3-port SRS transmission after collision discarding of some symbols among the multiple symbols, the collision discarding is for the multiple symbols.

21. The method according to any one of claims 1 to 20, wherein The method further comprises: The SRS is sent according to the sending parameters.

22. The method according to any one of claims 1 to 21, wherein The method further comprises: First information is received, wherein the first information is used to indicate that the 3-port SRS resources are allocated in a TDM or FDM manner.

23. A communication method, performed by a network device, wherein: The method comprises: Send first information, wherein the first information is used to indicate that 3-port sounding reference signal SRS resources are allocated using time division multiplexing TDM or frequency division multiplexing FDM, and the 3-port SRS resources are used to obtain uplink channel state information CSI through 3 SRS ports.

24. The method according to claim 23, wherein The 3-port SRS resource is implemented based on one of the following SRS resource combinations: 3 1-port SRS resources; One 1-port SRS resource and one 2-port SRS resource.

25. A terminal comprising: a processing module configured to determine a transmission parameter corresponding to a 3-port sounding reference signal (SRS) resource, wherein the transmission parameter is used to implement SRS transmission based on the 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink channel state information (CSI) through three SRS ports; The terminal is a terminal with three transmitting antennas.

26. A network device comprising: The transceiver module is configured to send first information, wherein the first information is used to indicate that the 3-port sounding reference signal SRS resources are allocated using time division multiplexing TDM or frequency division multiplexing FDM, and the 3-port SRS resources are used to obtain uplink channel state information CSI through 3 SRS ports.

27. A communication device comprising: at least one processor; An instruction memory is stored; When the instruction is executed by the communication device, the communication device implements the communication method according to any one of claims 1 to 22.

28. A communication device comprising: at least one processor; An instruction memory is stored; When the instruction is executed by the communication device, the communication device implements the communication method according to claim 23 or 24.

29. A communication system comprising: A terminal configured to implement the communication method according to any one of claims 1 to 22; A network device configured to implement the communication method according to claim 23 or 24.

30. A storage medium storing instructions, wherein: When the instruction is executed on a communication device, the communication device is enabled to implement the communication method according to any one of claims 1 to 24.

31. A computer program product comprising instructions, wherein: When the instruction is executed on a communication device, the communication device is enabled to implement the communication method according to any one of claims 1 to 24.

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