Srs transmission power determination method, apparatus, and storage medium
By determining the transmission capacity and configuration information of the SRS, the transmission power of the target SRS is calculated, which solves the problem that network devices cannot accurately determine the transmission power of the SRS and achieves optimal downlink scheduling and DL CSI quality judgment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-05
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, network devices cannot accurately determine SRS transmission power, resulting in suboptimal downlink scheduling and an inability to obtain accurate downlink channel state information.
By determining the transmission capabilities and configuration information associated with the SRS, the transmission power of the target SRS is calculated, including the SRS transmission port switching pattern and power control parameters, to ensure that the transmission power is reasonably distributed across each antenna port.
This improves the flexibility of system scheduling, ensuring that network devices can correctly determine DL CSI quality, thereby achieving optimal downlink scheduling.
Smart Images

Figure CN116095802B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication technology, and in particular to a method, apparatus and storage medium for determining the transmission power of a Sounding Reference Signal (SRS). Background Technology
[0002] In the current system, network devices can configure the power control parameters corresponding to each SRS resource set. The terminal / user equipment (UE) uses the power control parameters corresponding to the SRS resource set to determine the transmission power of the SRS resource, and then distributes the transmission power equally among all the antenna ports configured for the SRS resource.
[0003] Since network devices do not know when the transmission power of SRS resources reaches the maximum output power, they always determine the downlink (DL) channel state information (CSI) quality based on the total transmission power of the 2-port SRS resources being the same as the total transmission power of the 4-port SRS resources. This will cause the network devices to make incorrect predictions about the DL CSI quality when the transmission power of SRS calculated by the UE based on the power control parameters is near the maximum output power, thus failing to perform optimal downlink scheduling. Summary of the Invention
[0004] This application provides an SRS transmission power determination method, apparatus, and storage medium to solve the technical problem that optimal downlink scheduling cannot be performed in the prior art.
[0005] In a first aspect, embodiments of this application provide a method for determining SRS transmission power, including:
[0006] Determine the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs;
[0007] The transmission power of the target SRS is determined based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs.
[0008] In some embodiments, according to an embodiment of the SRS transmission power determination method of this application, the one or more SRS are used for DL CSI acquisition, or for UL CSI acquisition, or for interference measurement, or for beam management.
[0009] In some embodiments, according to the SRS transmission power determination method of one embodiment of this application, the configuration information includes one or more of the following:
[0010] Information indicating the SRS transmission port switching pattern;
[0011] Information indicating the method for determining SRS transmission power.
[0012] In some embodiments, the SRS transmission power determination method according to one embodiment of this application, when the configuration information includes information indicating an SRS transmission port switching pattern, determines the transmission power of a target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs, including:
[0013] The transmission power of the target SRS is determined based on the information from the indicated SRS transmission port switching pattern.
[0014] In some embodiments, according to an embodiment of the SRS transmission power determination method of this application, determining the transmission power of the target SRS based on the information indicating the SRS transmission port switching pattern includes:
[0015] When the information indicating the SRS transmission port switching pattern indicates a first pattern, the transmission power of the target SRS is determined using a first method; or,
[0016] When the information indicating the SRS transmission port switching pattern indicates a second pattern, the transmission power of the target SRS is determined using a second method.
[0017] In some embodiments, according to an embodiment of the SRS transmission power determination method of this application, determining the transmission power of the target SRS based on the information indicating the SRS transmission port switching pattern includes:
[0018] The SRS transmission port switching pattern is determined based on the configuration of the SRS resource set corresponding to the target SRS;
[0019] The transmission power of the target SRS is determined based on the SRS transmission port switching pattern.
[0020] In some embodiments, in the SRS transmission power determination method according to one embodiment of this application, the information indicating the SRS transmission power determination method is used to indicate one or more of the following:
[0021] The terminal is instructed to determine the SRS transmission power based on the SRS transmission port switching pattern corresponding to the SRS resource set.
[0022] The terminal determines the SRS transmission power based on the SRS transmission port switching pattern indicated by the information in the SRS transmission port switching pattern.
[0023] The terminal is instructed to determine the transmission power of the SRS based on the transmission capacity reported by the terminal and associated with one or more SRSs.
[0024] The terminal is instructed to determine the transmission power of the SRS based on the number of antenna ports corresponding to the SRS.
[0025] The terminal is instructed to determine the transmission power of the SRS based on the configuration information of the SRS resources corresponding to the one or more SRSs.
[0026] The terminal is instructed to determine the SRS transmission power corresponding to the SRS resource for the specified SRS transmission port switching pattern according to the second method.
[0027] The terminal is instructed to determine the transmission power of the SRS corresponding to the SRS resource for a specified SRS transmission port switching pattern based on the number of antenna ports corresponding to the SRS resource and the number of first antenna ports corresponding to multiple SRS resources, wherein the number of first antenna ports is the maximum or minimum value among the number of antenna ports configured for the multiple SRS resources.
[0028] The terminal is instructed to determine the transmission power of the SRS based on whether all or some of the SRSs can reach the maximum output power corresponding to each of the one or more SRSs.
[0029] The terminal is instructed to determine the SRS transmission power based on the maximum output power achievable by the SRS resources with the corresponding number of ports being the number of ports of the first antenna.
[0030] The terminal is instructed to determine the SRS transmission power based on the terminal's maximum output power.
[0031] In some embodiments, according to an embodiment of the present application, the method for determining the transmission power of a target SRS, wherein determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs, includes:
[0032] When the number of antenna ports corresponding to the target SRS is a first number, the transmission power of the target SRS is determined using a first method; or,
[0033] When the number of antenna ports corresponding to the target SRS is the second number, the transmission power of the target SRS is determined using the second method.
[0034] In some embodiments, according to the SRS transmission power determination method of one embodiment of this application, the transmission capability includes one or more of the following information:
[0035] The power capability of SRS transmission supported by the terminal;
[0036] The maximum number of transmit antennas supported by the terminal;
[0037] The terminal supports full-power transmission mode;
[0038] The terminal supports the following SRS transmission port switching diagram.
[0039] In some embodiments, according to the SRS transmission power determination method of one embodiment of this application, the SRS transmission power capability supported by the terminal includes one or more of the following:
[0040] Whether the SRS corresponding to a specified number of antenna ports can achieve the maximum transmission power;
[0041] The ability of the SRS corresponding to all SRS resources of the specified SRS transmission port switching pattern to achieve the maximum transmission power.
[0042] Whether the SRS corresponding to the SRS resource with fewer than the number of antenna ports is capable of reaching the maximum transmission power.
[0043] In some embodiments, according to the SRS transmission power determination method of one embodiment of this application, the maximum number of transmit antennas supported by the terminal includes one or more of the following:
[0044] The terminal supports the maximum number of transmit antennas corresponding to one SRS.
[0045] The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal.
[0046] The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal.
[0047] The number of transmit antennas supported by the terminal to reach the maximum transmit power corresponding to the terminal's power level.
[0048] The number of transmit antennas supported by the terminal to reach the maximum transmit power indicated by the network device;
[0049] The number of antennas that the terminal supports for full-power transmission.
[0050] The terminal supports the number of antennas that can transmit at full power simultaneously.
[0051] The number of transmit antennas that the terminal supports simultaneously transmitting at the maximum transmit power corresponding to the terminal's power level.
[0052] In some embodiments, according to an embodiment of the present application, the method for determining the transmission power of a target SRS, wherein determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs, includes:
[0053] Based on the transmission capabilities supported by the terminal, determine whether the target SRS can reach the maximum transmission power indicated by the network device; based on whether the target SRS can reach the maximum transmission power indicated by the network device, determine the transmission power of the target SRS.
[0054] or,
[0055] The transmission power of the target SRS is determined based on whether the number of antenna ports corresponding to the target SRS is equal to the maximum number of transmit antennas supported by the terminal.
[0056] or,
[0057] The transmission power of the target SRS is determined based on the full-power transmission mode supported by the terminal;
[0058] or,
[0059] The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal.
[0060] In some embodiments, according to an embodiment of the SRS transmission power determination method of this application, determining the transmission power of the target SRS based on whether the target SRS can reach the maximum transmission power indicated by the network device includes:
[0061] If the target SRS reaches the maximum transmit power indicated by the network device, the transmission power of the SRS is determined using the first method; or,
[0062] If the target SRS cannot reach the maximum transmission power indicated by the network device, the transmission power of the SRS is determined using a second method.
[0063] In some embodiments, according to an embodiment of the SRS transmission power determination method of this application, the step of determining the transmission power of the target SRS based on whether the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal includes:
[0064] If the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the first method; or,
[0065] If the number of antenna ports corresponding to the SRS is less than the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the second method.
[0066] In some embodiments, the SRS transmission power determination method according to one embodiment of this application determines the transmission power of the target SRS based on the SRS transmission port switching pattern supported by the terminal, including:
[0067] If the SRS transmission port switching pattern supported by the terminal is the first pattern, the SRS transmission power is determined using the first method; or,
[0068] When the SRS transmission port switching pattern supported by the terminal is the second pattern, the SRS transmission power is determined using the second method.
[0069] In some embodiments, according to the SRS transmission power determination method of one embodiment of this application, the first method includes one or more of the following:
[0070] The first transmission power corresponding to the target SRS is evenly divided according to the number of first antenna ports, and the result of the equalization is taken as the transmission power of each antenna port of the target SRS resource; or...
[0071] Divide the first transmission power corresponding to the target SRS by the number of first antenna ports, and use the result as the transmission power of each antenna port of the target SRS resource; or,
[0072] The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the first coefficient corresponding to the target SRS; or...
[0073] The second transmission power is determined based on the first coefficient, and the transmission power corresponding to each antenna port of the target SRS is determined based on the second transmission power; or...
[0074] The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the second coefficient corresponding to the target SRS.
[0075] Wherein, the first coefficient is a preset value or a coefficient determined based on the number of antenna ports of the target SRS and the number of first antenna ports, the number of first antenna ports being the maximum or minimum number of antenna ports configured among multiple SRS resources, and the second coefficient being a coefficient determined based on the maximum output power that the corresponding SRS resource with the number of first antenna ports can achieve and the first transmission power corresponding to the corresponding SRS resource with the number of first antenna ports; or, the second coefficient is a coefficient determined based on the maximum output power of the terminal and the first transmission power corresponding to the corresponding SRS resource with the number of first antenna ports.
[0076] In some embodiments, according to an SRS transmission power determination method of one embodiment of this application, the first coefficient is a coefficient determined based on the number of antenna ports and the second number of antenna ports of the target SRS, including:
[0077] The first coefficient is determined based on the ratio of the number of antenna ports of the target SRS to the number of antenna ports of the first antenna port, or the first coefficient is determined based on the ratio of the number of antenna ports of the first antenna port to the number of antenna ports of the target SRS.
[0078] In some embodiments, according to the SRS transmission power determination method of one embodiment of this application, the second method includes:
[0079] Determine the first transmission power corresponding to the target SRS, and distribute the first transmission power equally among all antenna ports of the target SRS.
[0080] In some embodiments, the SRS transmission power determination method according to one embodiment of this application further includes:
[0081] Determine the first transmission power corresponding to the target SRS, and scale the transmission power of the target SRS so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value; or, the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value; or, the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predefined fixed value.
[0082] Wherein, the target SRS is an SRS with a specified first number of antenna ports; the first SRS is an SRS with a specified second number of antenna ports.
[0083] Secondly, embodiments of this application provide a method for determining SRS transmission power, including:
[0084] The terminal sends configuration information associated with one or more SRSs to the terminal so that the terminal determines the transmission power of a target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs.
[0085] In some embodiments, the SRS transmission power determination method according to one embodiment of this application further includes:
[0086] Receive one or more SRSs sent by the terminal;
[0087] The DL CSI or UL CSI is determined based on the transmission power associated with the one or more SRSs.
[0088] In some embodiments, according to the SRS transmission power determination method of one embodiment of this application, the transmission capability includes one or more of the following information:
[0089] The power capability of SRS transmission supported by the terminal;
[0090] The maximum number of transmit antennas supported by the terminal;
[0091] The terminal supports full-power transmission mode;
[0092] The terminal supports the following SRS transmission port switching diagram.
[0093] In some embodiments, according to the SRS transmission power determination method of one embodiment of this application, the configuration information includes one or more of the following:
[0094] Information indicating the SRS transmission port switching pattern;
[0095] Information indicating the method for determining SRS transmission power.
[0096] Thirdly, embodiments of this application also provide an electronic device, including a memory, a transceiver, and a processor:
[0097] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:
[0098] Determine the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs;
[0099] The transmission power of the target SRS is determined based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs.
[0100] Fourthly, embodiments of this application also provide a network device, including a memory, a transceiver, and a processor:
[0101] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:
[0102] The terminal sends configuration information associated with one or more SRSs to the terminal so that the terminal can determine the transmission power of the target SRS based on the transmission capacity associated with the one or more SRSs and / or the configuration information associated with the one or more SRSs; the target SRS is one of the one or more SRSs.
[0103] Fifthly, embodiments of this application also provide an SRS transmission power determination device, comprising:
[0104] The first determining module is used to determine the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs;
[0105] The second determining module is configured to determine the transmission power of a target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs.
[0106] Sixthly, embodiments of this application also provide an SRS transmission power determination device, comprising:
[0107] A sending module is configured to send configuration information associated with one or more SRSs to a terminal, so that the terminal can determine the transmission power of a target SRS based on the transmission capacity associated with the one or more SRSs and / or the configuration information associated with the one or more SRSs; the target SRS is one of the one or more SRSs.
[0108] In a seventh aspect, embodiments of this application also provide a processor-readable storage medium storing a computer program for causing the processor to perform the steps of the relative positioning method described in the first or second aspect above.
[0109] The SRS transmission power determination method, apparatus, and storage medium provided in this application increase the flexibility of system scheduling by determining the transmission power of the target SRS using transmission capacity and / or configuration information, so that network devices can make correct judgments on DL CSI or UL CSL quality, thereby achieving optimal downlink or uplink scheduling. Attached Figure Description
[0110] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0111] Figure 1 This is one of the flowcharts illustrating the SRS transmission power determination method provided in the embodiments of this application;
[0112] Figure 2 This is a second schematic flowchart of the SRS transmission power determination method provided in the embodiments of this application;
[0113] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;
[0114] Figure 4 This is a schematic diagram of the structure of a network device provided in an embodiment of this application;
[0115] Figure 5 This is one of the structural schematic diagrams of the SRS transmission power determination device provided in the embodiments of this application;
[0116] Figure 6 This is the second schematic diagram of the SRS transmission power determination device provided in the embodiments of this application. Detailed Implementation
[0117] In current systems, such as 3GPP New Radio (NR) systems, in order to better obtain DLCSI, terminals can report their supported transmission capabilities to network devices.
[0118] Based on the transmission capabilities reported by the UE, the network device configures one or more SRS resource sets for the UE to obtain DL CSI. Each SRS resource set includes one or more SRS resources. The network device configures the corresponding power control parameters for each SRS resource set. The UE uses the power control parameters corresponding to the SRS resource set to determine the transmission power corresponding to the SRS resource. This transmission power is evenly distributed across all antenna ports configured for the SRS resource.
[0119] The transmission power corresponding to the SRS resource determined by the UE cannot exceed the UE's maximum output power limit. If the transmission power determined by the UE using the power control parameters corresponding to the SRS resource set to which the SRS resource is located is greater than the maximum output power, then the UE sets the transmission power to the maximum output power and then distributes it equally across all antenna ports configured with the SRS resource.
[0120] In the current system, the number of SRS antenna ports corresponding to the SRS resources used to acquire DL CSI is the same. By configuring all SRS resources in the same SRS resource set, or configuring the same power control parameters for multiple SRS resource sets used for DL CSI acquisition, the relative transmission power of the antenna ports of each SRS resource can be made the same, thereby enabling network devices to obtain relative channel quality between downlink receiving antennas and better perform downlink scheduling.
[0121] For UEs with 4T6R transmission capabilities, the existing SRS power control mechanism may not function well. The maximum output power of the UE's uplink signal is related to the UE's RF chain structure. Taking a UE with 4T6R transmission capability as an example, there may be multiple RF chain structures.
[0122] For example, there might be two RF chains, each capable of switching between two Rx antennas, or two RF chains each connected to only one Rx antenna; or four RF chains, each capable of switching between two Rx antennas, and so on. The power amplifier (PA) capabilities of the UE may also differ; for example, all four PAs might have a maximum transmit power of 23dBm, or all four PAs might have a maximum transmit power of 17dBm, or two PAs might have a maximum transmit power of 20dBm, and two PAs might have a maximum transmit power of 17dBm, and so on.
[0123] If the existing SRS power control mechanism is still used, in some scenarios, the UE's transmit power on the SRS port will be inconsistent with the network device's expectations, which will cause the network device to make incorrect predictions about DL CSI quality and affect downlink performance.
[0124] For example, for a UE supporting 4T6R, if all four RF chains have 17dBm PAs, the maximum output power corresponding to the UE's power level is 23dBm. If the network device configures an SRS resource set for the UE for antenna switching, including one 4-port SRS resource and one 2-port SRS resource, then according to the existing SRS power control mechanism, when the SRS transmission power calculated based on the power control parameters does not reach the maximum output power, the total transmission power of the two SRS resources is the same; when the SRS transmission power calculated based on the power control parameters reaches the maximum output power... equal For a 4-port SRS resource, the transmit power of each port should be [value missing]. One-quarter of that, or 17dBm, means that for a 2-port SRS resource, the transmit power per port should be [missing value]. Half of that, i.e., 20dBm. Since the UE's PA cannot reach 20dBm, the UE can only use 17dBm to transmit to each antenna port of the 2-port SRS resource.
[0125] Since network devices do not know when the transmission power of SRS resources reaches the maximum output power, they always determine the DL CSI quality based on the total transmission power of the 2-port SRS resources being the same as the total transmission power of the 4-port SRS resources. This will cause the network devices to make incorrect predictions about the DL CSI quality when the transmission power of SRS calculated by the UE based on the power control parameters is near the maximum output power, thus failing to perform optimal downlink scheduling.
[0126] To address the aforementioned technical problems, embodiments of this application utilize transmission capacity and / or configuration information to determine the transmission power of the SRS, thereby solving the technical problem of the inability to perform optimal downlink scheduling in the prior art.
[0127] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0128] Figure 1 This is one of the flowcharts illustrating the SRS transmission power determination method provided in this application embodiment, such as... Figure 1 As shown in the embodiment of this application, an SRS transmission power determination method is provided, the execution subject of which can be a terminal, such as a mobile phone, etc., and the method includes:
[0129] Step 101: Determine the transmission capabilities associated with one or more SRSs and / or the configuration information associated with one or more SRSs.
[0130] Specifically, the determined transmission capacity is used to determine the transmission power of the SRS, and the determined configuration information is also used to determine the transmission power of the SRS. There can be one or multiple SRSs.
[0131] The terminal determines its own transmission capabilities and / or the configuration information issued by the network device. The terminal can determine its own transmission capabilities and / or the configuration information issued by the network device.
[0132] In some embodiments, one or more SRSs are used for DL CSI acquisition, or for UL CSI acquisition, or for interference measurement, or for beam management.
[0133] Specifically, SRS is not only applicable to DL CSI acquisition, but also to UL CSI acquisition, interference measurement, beam management, and so on.
[0134] By utilizing transmission capacity and / or configuration information to determine the transmission power of the target SRS, the flexibility of system scheduling is increased, enabling network devices to correctly judge the quality of DL CSI and thus achieve optimal downlink scheduling.
[0135] In some embodiments, the configuration information may include one or more of the following:
[0136] Information indicating the SRS transmission port switching pattern;
[0137] Information indicating the method for determining SRS transmission power.
[0138] Specifically, configuration information is information sent from network devices to terminals to provide instructions to the terminals.
[0139] For example, the configuration information includes information indicating the SRS transmission port switching pattern.
[0140] For example, the configuration information includes information indicating the method for determining SRS transmission power.
[0141] For example, the configuration information includes information indicating the SRS transmission port switching pattern and information indicating the SRS transmission power determination method.
[0142] Information indicating the SRS transmission port switching pattern is used to indicate the SRS transmission port switching pattern. The SRS transmission port switching pattern can also be called the SRS antenna switching pattern.
[0143] For example, the information indicating the SRS transmission port switching pattern indicates that the SRS transmission port switching pattern is 4T6R.
[0144] For example, the information indicating the SRS transmission port switching pattern indicates that the SRS transmission port switching pattern is 1T6R.
[0145] The information indicating the method for determining SRS transmission power is used to instruct the terminal on the basis for determining the SRS transmission power.
[0146] For example, the information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power based on the SRS transmission port switching pattern corresponding to the SRS resource set.
[0147] For example, information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power based on the transmission capabilities reported by the terminal associated with one or more SRSs.
[0148] In some embodiments, the configuration information may also include one or more of the following:
[0149] Power control parameters;
[0150] The number of antenna ports corresponding to the target SRS;
[0151] Specifically, for example, the configuration information includes information indicating the SRS transmission port switching pattern and power control parameters.
[0152] For example, configuration information includes power control parameters and the number of antenna ports corresponding to the target SRS.
[0153] For example, the configuration information includes information indicating the SRS transmission port switching pattern, information indicating the SRS transmission power determination method, power control parameters, and the number of antenna ports corresponding to the target SRS.
[0154] The terminal can determine the transmission power of SRS by using the power control parameters configured in the network device.
[0155] Power control parameters include one or more of the following:
[0156] Road loss reference signal parameters;
[0157] Target received power parameters;
[0158] Some road loss compensation parameters;
[0159] Closed-loop power control parameters;
[0160] Open-loop power control parameters.
[0161] For example, power control parameters include path loss reference signal parameters, target received power parameters, and partial path loss compensation parameters.
[0162] For example, power control parameters include path loss reference signal parameters, target received power parameters, partial path loss compensation parameters, closed-loop power control parameters, and open-loop power control parameters.
[0163] The number of antenna ports corresponding to the target SRS is the number of antenna ports corresponding to the target SRS in one or more SRSs.
[0164] For example, the target SRS has 2 antenna ports.
[0165] For example, the target SRS has 4 antenna ports.
[0166] The specific information included in the configuration information has been clarified, and the transmission power of the SRS can be further determined based on the information included in the configuration information.
[0167] In some embodiments, transmission capabilities may include one or more of the following:
[0168] The power capability of SRS transmission supported by the terminal;
[0169] The maximum number of transmit antennas supported by the terminal;
[0170] The terminal supports full-power transmission mode;
[0171] The terminal supports the following SRS transmission port switching diagram.
[0172] Specifically, transmission capability refers to the capabilities that the terminal itself can support.
[0173] For example, transmission capability includes the power capability of SRS transmission supported by the terminal and the full-power transmission mode supported by the terminal.
[0174] For example, transmission capabilities include the power capability of SRS transmission supported by the terminal, the maximum number of transmit antennas supported by the terminal, and the SRS transmission port switching pattern supported by the terminal.
[0175] For example, transmission capabilities include the power capability of SRS transmission supported by the terminal, the maximum number of transmit antennas supported by the terminal, the full-power transmission mode supported by the terminal, and the SRS transmission port switching pattern supported by the terminal.
[0176] In some embodiments, the power capability of SRS transmission supported by the terminal includes one or more of the following:
[0177] The ability of an SRS with a specified number of antenna ports to achieve maximum output power.
[0178] The ability of all SRS resources corresponding to the specified SRS transmission port switching pattern to achieve maximum output power;
[0179] Whether the SRS corresponding to SRS resources with fewer than the maximum number of transmit antennas supported by the terminal can achieve the maximum output power.
[0180] Specifically, the number of antenna ports is specified, and the transmission power of the SRS corresponding to the specified number of antenna ports is compared with the maximum output power of the terminal to see if the SRS transmission power supported by the terminal can reach the maximum output power of the terminal with the transmission power of the SRS corresponding to the specified number of antenna ports.
[0181] For example, the maximum output power of the terminal is The number of antenna ports is specified as 2 ports, and the SRS transmission power corresponding to the 2-port SRS resource is... If the SRS transmission power corresponding to the SRS resource on port 2 can reach the maximum output power of the terminal, then the SRS transmission power supported by the terminal is capable of reaching the maximum output power of the terminal.
[0182] The SRS transmission port switching pattern is specified, and the transmission power of the SRS corresponding to all SRS resources under the specified SRS transmission port switching pattern is compared with the maximum output power of the terminal to see if the SRS transmission power capability supported by the terminal is sufficient to reach the maximum output power of the terminal.
[0183] For example, the maximum output power of the terminal is The SRS transmission port switching pattern is 4T6R. Under the 4T6R pattern, the SRS transmission power corresponding to all SRS resources is... If the SRS transmission power corresponding to all SRS resources under the 4T6R pattern can reach the maximum output power of the terminal, then the SRS transmission power supported by the terminal can reach the maximum output power of the terminal.
[0184] Compare the transmission power of the SRS corresponding to the SRS resource with fewer antenna ports than the maximum number of transmit antennas supported by the terminal with the terminal's maximum output power capability to see if the SRS transmission power capability supported by the terminal is sufficient to achieve the terminal's maximum output power for the SRS resource with fewer antenna ports than the maximum number of transmit antennas supported by the terminal.
[0185] For example, the maximum output power of the terminal is The terminal supports a maximum of 8 transmit antennas, and the SRS transmission power corresponding to the 4-port antenna SRS resource is [missing information]. If the SRS transmission power corresponding to the SRS resources with 4-port antennas can reach the maximum output power of the terminal, then the SRS transmission power supported by the terminal has the capability to reach the maximum output power of the terminal with the SRS transmission power corresponding to the SRS resources with 4-port antennas.
[0186] The specific capabilities included in the SRS transmission power capability supported by the terminal are clarified, the terminal's transmission capability is further clarified, and the method of determining the SRS transmission power through the transmission capability is further clarified.
[0187] In some embodiments, the maximum number of transmit antennas supported by the terminal includes one or more of the following:
[0188] The maximum number of transmit antennas corresponding to one SRS supported by the terminal;
[0189] The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal;
[0190] The maximum value among the number of transmit antennas corresponding to the SRS transmission port switching pattern supported by the terminal;
[0191] The number of transmitting antennas that the terminal supports to reach the maximum output power corresponding to the terminal's power level;
[0192] The number of transmit antennas supported by the terminal to reach the maximum output power indicated by the network device;
[0193] The number of antennas that the terminal supports for full-power transmission;
[0194] The number of antennas that the terminal supports transmitting at full power simultaneously;
[0195] The number of transmitting antennas that the terminal supports simultaneously transmitting at the maximum output power corresponding to the terminal's power level.
[0196] Specifically, the maximum number of transmit antennas supported by the terminal is measured from different aspects such as SRS, SRS transmission port switching pattern, maximum output power corresponding to the terminal's power level, maximum output power indicated by the network device, and full-power transmission.
[0197] For example, the maximum number of transmit antennas supported by the terminal includes: the maximum number of transmit antennas corresponding to the SRS transmission port switching pattern supported by the terminal, the number of transmit antennas supported by the terminal that reach the maximum output power corresponding to the terminal's power level, and the number of transmit antennas supported by the terminal that reach the maximum output power indicated by the network device.
[0198] For example, the maximum number of transmit antennas supported by the terminal includes: the maximum number of transmit antennas corresponding to one SRS supported by the terminal, the number of transmit antennas supported by the terminal that reach the maximum output power indicated by the network device, the number of antennas supported by the terminal for full-power transmission, and the number of transmit antennas supported by the terminal for simultaneous transmission that reach the maximum output power corresponding to the terminal's power level.
[0199] The maximum number of transmit antennas that a terminal can use to transmit an SRS is the maximum number of transmit antennas that the terminal supports for one SRS.
[0200] There are several different pattern types for SRS transmission port switching patterns. The SRS transmission port switching pattern can be one or more of 1T1R, 1T2R, 1T4R, 1T6R, 1T8R, 2T2R, 2T4R, 2T6R, 2T8R, 4T6R, and 4T8R. The number of transmitting antennas corresponding to the SRS transmission port switching pattern is also different.
[0201] For example, the number of transmit antennas corresponding to the SRS transmission port switching patterns 1T1R, 1T2R, 1T4R, 1T6R, and 1T8R is 1; the number of transmit antennas corresponding to the SRS transmission port switching patterns 2T2R, 2T4R, 2T6R, and 2T8R is 2; and the number of transmit antennas corresponding to the SRS transmission port switching patterns 4T6R and 4T8R is 4.
[0202] The largest number of transmit antennas is selected from the number of transmit antennas corresponding to multiple different types of SRS transmission port switching patterns. This largest number of transmit antennas is the maximum value among the number of transmit antennas corresponding to the SRS transmission port switching patterns.
[0203] The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal can be 1, 2, or 4. The maximum number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal is 4.
[0204] The terminal supports multiple different power levels, each corresponding to a different transmission power. The maximum output power is selected from these power levels, and the number of transmission antennas capable of achieving this maximum output power is the number of transmission antennas supported by the terminal that can achieve the maximum output power corresponding to the terminal's power level.
[0205] The network device indicates that the terminal has multiple transmit power settings. The maximum output power is selected from the multiple indicated transmit power settings. The number of transmit antennas that can reach this maximum output power is the number of transmit antennas supported by the terminal that can reach the maximum output power indicated by the network device.
[0206] The number of antennas transmitting at full power is the number of antennas supported by the terminal for full-power transmission.
[0207] The number of antennas transmitting at full power at the same time is the number of antennas that the terminal supports transmitting at full power simultaneously.
[0208] The number of antennas transmitting at the same time in a manner that reaches the maximum output power corresponding to the power level of the terminal is the number of transmitting antennas that the terminal supports transmitting simultaneously and reaching the maximum output power corresponding to the power level of the terminal.
[0209] The measurement of the maximum number of transmit antennas supported by the terminal has been clarified, the terminal's transmission capability has been further clarified, and the method of determining the transmission power of SRS through transmission capability has been further clarified.
[0210] Determining transmission capacity and / or configuration information provides a basis for further determining the transmission power of the target SRS.
[0211] Step 102: Determine the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs.
[0212] Specifically, the terminal determines the transmission power of the target SRS based on transmission capacity and / or configuration information.
[0213] In some embodiments, when the configuration information includes information indicating an SRS transmission port switching pattern, determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes:
[0214] The transmission power of the target SRS is determined based on the information from the SRS transmission port switching pattern.
[0215] Specifically, when the configuration information includes information indicating the SRS transmission port switching pattern, the terminal determines the transmission power of the target SRS based on the information indicating the SRS transmission port switching pattern.
[0216] The information indicating the SRS transmission port switching pattern provides a basis for determining the transmission power of the target SRS.
[0217] In some embodiments, determining the transmission power of the target SRS based on information indicating the SRS transmission port switching pattern includes:
[0218] When the information indicating the SRS transmission port switching pattern indicates the first pattern, the transmission power of the target SRS is determined using the first method; or,
[0219] When the information indicating the SRS transmission port switching pattern indicates the second pattern, the transmission power of the target SRS is determined using the second method.
[0220] Specifically, for example, if the information indicating the SRS transmission port switching pattern indicates that the first pattern is 4T6R, the transmission power of the target SRS is determined using the first method.
[0221] For example, if the information indicating the SRS transmission port switching pattern indicates that the second pattern is 1T6R, the transmission power of the target SRS is determined using the second method.
[0222] The information indicating the SRS transmission port switching pattern provides a specific basis for determining the transmission power of the target SRS.
[0223] In some embodiments, determining the transmission power of the target SRS based on information indicating the SRS transmission port switching pattern includes:
[0224] The SRS transmission port switching pattern is determined based on the configuration of the SRS resource set corresponding to the target SRS;
[0225] Determine the transmission power of the target SRS based on the SRS transmission port switching pattern.
[0226] Specifically, there is a connection between the configuration of the SRS resource set and the SRS transmission port switching pattern. The SRS transmission port switching pattern is determined based on the configuration of the SRS resource set corresponding to the target SRS, and then the transmission power of the target SRS is determined based on the SRS transmission port switching pattern.
[0227] For example, if the configuration of the SRS resource set corresponding to the target SRS is determined by the pattern 4T6R, the transmission power of the target SRS is determined using the first method.
[0228] For example, if the configuration of the SRS resource set corresponding to the target SRS is determined by pattern 1T6R, the transmission power of the target SRS is determined using the second method.
[0229] The information indicating the SRS transmission port switching pattern provides a specific basis for determining the transmission power of the target SRS.
[0230] In some embodiments, determining the transmission power of a target SRS based on the transmission capacity associated with one or more SRSs and / or configuration information associated with one or more SRSs includes:
[0231] When the number of antenna ports corresponding to the target SRS is a first number, the transmission power of the target SRS is determined using the first method; or,
[0232] When the number of antenna ports corresponding to the target SRS is the second number, the transmission power of the target SRS is determined using the second method.
[0233] Specifically, the transmission power of the target SRS is determined based on the number of antenna ports corresponding to the target SRS.
[0234] For example, when the target SRS has 2 antenna ports, the first method is used to determine the transmission power of the target SRS.
[0235] For example, when the target SRS has 4 antenna ports, the second method is used to determine the transmission power of the target SRS.
[0236] The number of antenna ports corresponding to the target SRS provides a specific basis for determining the transmission power of the target SRS.
[0237] In some embodiments, the first approach includes one or more of the following:
[0238] The first transmission power corresponding to the target SRS is evenly divided according to the number of the first antenna ports, and the result of the equalization is used as the transmission power of each antenna port of the target SRS resource; or,
[0239] Divide the first transmission power corresponding to the target SRS by the number of first antenna ports, and use the result as the transmission power of each antenna port of the target SRS resource; or,
[0240] Based on the first transmission power and the first coefficient corresponding to the target SRS, determine the transmission power corresponding to each antenna port of the target SRS; or,
[0241] The second transmission power is determined based on the first coefficient, and the transmission power corresponding to each antenna port of the target SRS is determined based on the second transmission power; or...
[0242] The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the second coefficient corresponding to the target SRS.
[0243] Wherein, the first coefficient is a preset value or a coefficient determined based on the number of antenna ports of the target SRS and the number of first antenna ports, the number of first antenna ports being the maximum or minimum value among the number of antenna ports configured for multiple SRS resources; the second coefficient is a coefficient determined based on the maximum output power that the SRS or SRS resource with the corresponding number of ports equal to the number of first antenna ports can achieve, and the first transmission power corresponding to the SRS or SRS resource with the corresponding number of ports equal to the number of first antenna ports; or, the second coefficient is a coefficient determined based on the maximum output power of the terminal and the first transmission power corresponding to the SRS resource with the corresponding number of ports equal to the number of first antenna ports.
[0244] Specifically, the first transmission power is the transmission power calculated by the UE according to Formula 1, the specific expression of Formula 1 is as follows:
[0245]
[0246] For an explanation of each parameter, please refer to section 7.3.1 of the 3GPP protocol TS38.213 V16.7.0 (2021-09).
[0247] In some embodiments, the first transmission power may be determined based on one or more of the following:
[0248] Power control parameters corresponding to the target SRS resource;
[0249] The bandwidth corresponding to the target SRS resource;
[0250] Path loss reference signal corresponding to the target SRS resource;
[0251] Target received power corresponding to the target SRS resource;
[0252] Partial road loss compensation factor corresponding to the target SRS resource;
[0253] Closed-loop power control parameters corresponding to the target SRS resource;
[0254] Spatial parameters corresponding to the target SRS resource;
[0255] The maximum output power of the terminal.
[0256] In some embodiments, the information corresponding to the target SRS resource is the information corresponding to the SRS resource set to which the target SRS resource is located.
[0257] For example, the target received power corresponding to the target SRS resource is the target received power corresponding to the SRS resource set to which the target SRS resource is located.
[0258] For example, the power control parameters corresponding to the target SRS resource are the power control parameters corresponding to the SRS resource set to which the target SRS resource is located.
[0259] Multiple SRS resources are SRS resources in the combination of SRS resources of the target SRS pair, and each SRS resource set includes one or more SRS resources. The first antenna port number is the maximum or minimum value among the number of antenna ports configured for the multiple SRS resources. That is, the number of antenna ports configured for each of the multiple SRS resources in the SRS resource set is compared, and the maximum or minimum value among them is selected as the first antenna port number.
[0260] First coefficient It can be a preset value or a coefficient determined based on the number of antenna ports of the target SRS and the number of first antenna ports.
[0261] For example, the default value is 0.5.
[0262] For example, the number of antenna ports of the target SRS is The number of first antenna ports is The first coefficient is determined by the number of ports. and number of ports To be confirmed.
[0263] In some embodiments, the first coefficient is a coefficient determined based on the number of antenna ports of the target SRS and the first antenna port number, including:
[0264] The first coefficient is determined based on the ratio of the number of antenna ports of the target SRS to the number of first antenna ports, or the first coefficient is determined based on the ratio of the number of first antenna ports to the number of antenna ports of the target SRS.
[0265] Specifically, the first coefficient can be determined based on the ratio of the number of antenna ports of the target SRS to the number of first antenna ports.
[0266] For example, the first coefficient for .
[0267] The first coefficient can also be determined based on the ratio of the number of first antenna ports to the number of antenna ports of the target SRS.
[0268] For example, the first coefficient for .
[0269] Clarifying that the first coefficient is determined based on the ratio of the number of antenna ports of the target SRS to the number of antenna ports of the second antenna is beneficial for further determining the transmission power of the target SRS.
[0270] Second coefficient The coefficient is determined based on the maximum output power achievable by the SRS resource with the corresponding number of ports equal to the number of antenna ports, and the first transmission power corresponding to the SRS resource with the corresponding number of ports equal to the number of antenna ports.
[0271] For example, the second coefficient is the ratio of the maximum output power that the SRS resource with the same number of ports as the first antenna ports can achieve to the first transmission power corresponding to the SRS resource with the same number of ports as the first antenna ports.
[0272] For example, the number of first antenna ports is , The maximum output power that the port's SRS resources can achieve is Calculated according to Formula 1 The transmission power corresponding to the SRS resource of the port is Then the second coefficient for .
[0273] The second coefficient can also be a coefficient determined based on the terminal's maximum output power and the first transmission power corresponding to the SRS resources with the number of ports being the first antenna ports.
[0274] The maximum output power of the terminal can be the maximum output power that the terminal can achieve, or it can be the maximum output power calculated by the terminal based on the terminal's power level and / or the parameters indicated by the network device.
[0275] For example, the second coefficient is the ratio of the terminal's maximum output power to the first transmission power corresponding to the SRS resource with the number of ports equal to the number of the first antenna ports.
[0276] For example, the maximum output power of the terminal is The number of first antenna ports is , The first transmission power of the port's SRS resources, derived from Formula 1, is: Then the second coefficient It can also be used for .
[0277] The first transmission power corresponding to the target SRS is calculated according to Formula 1. This transmission power is the first transmission power corresponding to the target SRS, denoted as . .
[0278] The first method is to divide the first transmission power corresponding to the target SRS equally using the number of first antenna ports, and use it as the transmission power of each antenna port of the target SRS resource.
[0279] For example, the first transmission power corresponding to the target SRS is The number of first antenna ports is Then the transmission power of each antenna port of the target SRS resource is .
[0280] The first method is to divide the first transmission power corresponding to the target SRS by the number of first antenna ports to obtain the transmission power of each antenna port of the target SRS resource.
[0281] For example, the first transmission power corresponding to the target SRS is The number of first antenna ports is Then the transmission power of each antenna port of the target SRS resource is .
[0282] The first method is to determine the transmission power corresponding to each antenna port of the target SRS based on the first transmission power and the first coefficient corresponding to the target SRS.
[0283] For example, the power obtained by multiplying the first transmission power and the first coefficient corresponding to the target SRS is used to divide the power equally among the antenna ports of the target SRS, and this power is used as the transmission power of each antenna port of the target SRS resource.
[0284] For example, the first transmission power corresponding to the target SRS is The first coefficient is The target SRS has the following number of antenna ports: Then the transmission power corresponding to each antenna port of the target SRS is .
[0285] The first method is to determine the second transmission power based on the first coefficient, and then determine the transmission power corresponding to each antenna port of the target SRS based on the second transmission power.
[0286] For example, the product of the first transmission power corresponding to the target SRS and the first coefficient determines the second transmission power, and the second transmission power is evenly distributed across the number of antenna ports of the target SRS as the transmission power of each antenna port of the target SRS resource.
[0287] For example, the first transmission power corresponding to the target SRS is The first coefficient is The target SRS has the following number of antenna ports: Then the transmission power corresponding to each antenna port of the target SRS is .
[0288] The first method is to determine the transmission power corresponding to each antenna port of the target SRS based on the first transmission power and the second coefficient corresponding to the target SRS.
[0289] For example, the power obtained by multiplying the first transmission power corresponding to the target SRS with the second coefficient is used to divide the power equally among the antenna ports of the target SRS, and this power is used as the transmission power of each antenna port of the target SRS resource.
[0290] For example, the first transmission power corresponding to the target SRS is The second coefficient is The target SRS has the following number of antenna ports: Then the transmission power corresponding to each antenna port of the target SRS is .
[0291] The specific method of the first approach has been clarified, providing an implementation method for further determining the transmission power of the target SRS.
[0292] In some embodiments, the second approach includes:
[0293] Determine the first transmission power corresponding to the target SRS, and distribute the first transmission power equally among all antenna ports of the target SRS.
[0294] Specifically, the terminal calculates the first transmission power corresponding to the target SRS according to Formula 1, and divides the first transmission power equally among all antenna ports of the target SRS as the transmission power corresponding to each antenna port of the target SRS.
[0295] For example, the first transmission power corresponding to the target SRS is The target SRS has the following number of antenna ports: Then the transmission power corresponding to each antenna port of the target SRS is .
[0296] The specific method of the second approach has been clarified, providing an implementation method for further determining the transmission power of the target SRS.
[0297] In some embodiments, a first transmission power corresponding to the target SRS is determined, and the transmission power of the target SRS is scaled such that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value; or, the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value; or, the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predefined fixed value.
[0298] Wherein, the target SRS is an SRS with a specified first number of antenna ports; the first SRS is an SRS with a specified second number of antenna ports.
[0299] Specifically, the number of antenna ports of the target SRS and the first SRS can be the same or different.
[0300] For example, the first and second values can be 2, the first value can also be 4, and the second value can also be 6.
[0301] In addition to the first and second methods, the transmission power of the target SRS can also be scaled. The scaling result is that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value, for example, a predefined fixed value of 0.5.
[0302] In addition to the first and second methods, the transmission power of the target SRS can also be scaled. The scaling result is that the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value.
[0303] In addition to the first and second methods, the transmission power of the target SRS can also be scaled. The scaling result is that the ratio of the transmission power of the target SRS antenna port to the transmission power of the first SRS antenna port is a predefined fixed value.
[0304] In some embodiments, downlink channel / downlink signal scheduling information is determined based on a predefined fixed value, according to the ratio of the transmission power of the target SRS to the transmission power of the first SRS; or,
[0305] The downlink channel / downlink signal scheduling information is determined based on a predefined fixed value, using the ratio of the transmission power of the SRS resource corresponding to the target SRS to that of the SRS corresponding to the first SRS; or,
[0306] The downlink channel / downlink signal scheduling information is determined based on a predefined fixed value, using the ratio of the transmission power of the antenna port of the target SRS to that of the antenna port of the first SRS.
[0307] In some embodiments, the downlink channel is PDSCH.
[0308] It provides different implementation methods for determining the transmission power of the target SRS, increasing the flexibility of system scheduling.
[0309] In some embodiments, determining the transmission power of a target SRS based on the transmission capacity associated with one or more SRSs and / or configuration information associated with one or more SRSs includes:
[0310] Based on the terminal's supported transmission capabilities, determine whether the target SRS can reach the maximum output power indicated by the network device; based on whether the target SRS can reach the maximum output power indicated by the network device, determine the transmission power of the target SRS.
[0311] or,
[0312] The transmission power of the target SRS is determined by whether the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal.
[0313] or,
[0314] The transmission power of the target SRS is determined based on the full-power transmission mode supported by the terminal;
[0315] or;
[0316] The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal.
[0317] Specifically, the transmission power of the target SRS is determined based on the transmission capabilities supported by the terminal, which determines whether the target SRS can reach the maximum output power indicated by the network device.
[0318] In some embodiments, determining the transmission power of the target SRS based on whether the target SRS can reach the maximum output power indicated by the network device includes:
[0319] If the target SRS reaches the maximum output power indicated by the network device, the transmission power of the SRS is determined using the first method; or,
[0320] If the target SRS cannot reach the maximum output power indicated by the network device, the second method is used to determine the transmission power of the SRS.
[0321] Specifically, for example, the transmission power of the target SRS can be determined to reach the maximum output power indicated by the network device based on the power capability of the SRS transmission supported by the terminal, and the transmission power of the SRS is determined using the first method.
[0322] The transmission power of the target SRS is determined based on whether it can reach the maximum output power indicated by the network device, which further provides an implementation method for determining the transmission power of the target SRS and increases the flexibility of system scheduling.
[0323] The transmission power of the target SRS is determined by whether the number of antenna ports corresponding to the target SRS is equal to the maximum number of transmit antennas supported by the terminal.
[0324] In some embodiments, determining the transmission power of the target SRS based on whether the number of antenna ports corresponding to the target SRS is equal to the maximum number of transmit antennas supported by the terminal includes:
[0325] When the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the first method; or,
[0326] When the number of antenna ports corresponding to SRS is less than the maximum number of transmit antennas supported by the terminal, the transmission power of SRS is determined using the second method.
[0327] Specifically, for example, the transmission power of the SRS is determined using the first method when the number of antenna ports corresponding to the SRS is equal to the number of transmit antennas supported by the terminal that reach the maximum output power indicated by the network device.
[0328] For example, if the number of antenna ports corresponding to SRS is less than the maximum number of transmit antennas corresponding to the SRS transmission port switching pattern supported by the terminal, the transmission power of SRS is determined using the second method.
[0329] Based on whether the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal, a further method is provided to determine the transmission power of the target SRS, increasing the flexibility of system scheduling.
[0330] The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal.
[0331] In some embodiments, determining the transmission power of the target SRS based on the SRS transmission port switching pattern supported by the terminal includes:
[0332] If the SRS transmission port switching pattern supported by the terminal is the first pattern, the SRS transmission power is determined using the first method; or,
[0333] When the SRS transmission port switching pattern supported by the terminal is the second pattern, the SRS transmission power is determined using the second method.
[0334] Specifically, for example, if the terminal supports an SRS transmission port switching pattern of 4T6R, the transmission power of the target SRS is determined using the first method.
[0335] For example, if the terminal supports an SRS transmission port switching pattern of 1T6R, the second method is used to determine the transmission power of the target SRS.
[0336] The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal, which further provides an implementation method for determining the transmission power of the target SRS and increases the flexibility of system scheduling.
[0337] By determining the transmission power of the target SRS in different ways, different implementation methods are provided for determining the transmission power of the target SRS, increasing the flexibility of system scheduling.
[0338] In some embodiments, the information indicating the SRS transmission power determination method is used to indicate one or more of the following:
[0339] The terminal is instructed to determine the SRS transmission power based on the SRS transmission port switching pattern corresponding to the SRS resource set.
[0340] The terminal determines the SRS transmission power based on the SRS transmission port switching pattern indicated by the information in the SRS transmission port switching pattern.
[0341] The terminal is instructed to determine the transmission power of the SRS based on the transmission capacity reported by the terminal and associated with one or more SRSs.
[0342] The terminal is instructed to determine the transmission power of the SRS based on the number of antenna ports corresponding to the target SRS.
[0343] The terminal is instructed to determine the transmission power of the SRS based on the configuration information of the SRS resources corresponding to one or more SRSs.
[0344] The terminal is instructed to determine the SRS transmission power corresponding to the SRS resource for the specified SRS transmission port switching pattern according to the second method.
[0345] The terminal is instructed to determine the SRS transmission power corresponding to the SRS resource for the specified SRS transmission port switching pattern based on the number of antenna ports corresponding to the SRS resource and the number of first antenna ports corresponding to multiple SRS resources. The number of first antenna ports is the maximum or minimum number of antenna ports configured for multiple SRS resources.
[0346] The terminal is instructed to determine the transmission power of an SRS based on whether all or some of the SRSs in one or more SRSs can reach the maximum output power corresponding to each of the SRSs.
[0347] The terminal is instructed to determine the SRS transmission power based on the maximum output power achievable by the SRS resources with the corresponding number of ports being the number of ports of the first antenna.
[0348] The terminal is instructed to determine the SRS transmission power based on the terminal's maximum output power.
[0349] Specifically, the information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power according to the SRS transmission port switching pattern corresponding to the SRS resource set. The terminal then determines the SRS transmission power according to the SRS transmission port switching pattern corresponding to the SRS resource set.
[0350] For example, if the configuration of the SRS resource set corresponds to the pattern 4T6R, then the first method is used to determine the transmission power of the target SRS.
[0351] For example, the configuration of the SRS resource set corresponds to the pattern 1T6R, and the transmission power of the target SRS is determined using the second method.
[0352] The information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power based on the SRS transmission port switching pattern indicated by the information indicating the SRS transmission port switching pattern.
[0353] The information indicating the method for determining SRS transmission power instructs the terminal to determine the transmission power of the SRS based on the transmission capabilities reported by the terminal associated with one or more SRSs.
[0354] For example, the terminal determines the SRS transmission power based on the power capability of the SRS transmission supported by the terminal.
[0355] The information indicating the method for determining SRS transmission power instructs the terminal to determine the SRS transmission power based on the number of antenna ports corresponding to the SRS. The terminal then determines the SRS transmission power based on the number of antenna ports corresponding to the target SRS.
[0356] For example, when the target SRS has 2 antenna ports, the first method is used to determine the transmission power of the target SRS.
[0357] The information indicating the method for determining SRS transmission power instructs the terminal to determine the SRS transmission power based on the configuration information of one or more resources corresponding to SRS. The terminal then determines the SRS transmission power based on the configuration information of one or more resources corresponding to SRS.
[0358] For example, the terminal determines the SRS transmission power based on the SRS transmission port switching pattern corresponding to the configuration of one or more SRS resources.
[0359] The information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power corresponding to the SRS resource for the specified SRS transmission port switching pattern according to the second method.
[0360] For example, when the SRS transmission port switching pattern is 2T4R, the transmission power of the SRS corresponding to the SRS resource is determined according to the second method.
[0361] The information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power corresponding to the SRS resource for a specified SRS transmission port switching pattern based on the number of antenna ports corresponding to the SRS resource and the number of first antenna ports corresponding to multiple SRS resources.
[0362] For example, when the SRS transmission port switching pattern is 4T6R, the transmission power of the SRS corresponding to the SRS resource is determined based on the ratio of the number of antenna ports corresponding to the SRS resource to the number of first antenna ports corresponding to multiple SRS resources.
[0363] The information indicating the method for determining the SRS transmission power instructs the terminal to determine the transmission power of the SRS based on whether all or some of the SRSs in one or more SRSs can reach the maximum output power corresponding to each of the one or more SRSs.
[0364] For example, if all or some of the SRSs in one or more SRSs can reach the maximum output power corresponding to each of the SRSs to determine the transmission power of the SRS, then the transmission power of the SRS is determined according to the first method.
[0365] For example, if all or some of the SRSs in one or more SRSs cannot reach the maximum output power corresponding to each of the SRSs to determine the transmission power of the SRS, then the transmission power of the SRS is determined according to the second method.
[0366] The information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power based on the maximum output power achievable by the SRS resources with the corresponding number of ports being the number of the first antenna ports.
[0367] Assuming the terminal is transmitting on port 2 SRS resources, its maximum supported output power is... When the terminal calculates the first transmission power for the 2-port SRS resource Greater than At that time, the terminal is actually unable to... SRS transmission via port 2 can only be done in... The transmission power of the 4-port SRS is being scaled by adjusting the transmission power of the 4-port SRS by a scaling factor of [value missing]. .
[0368] The above scheme can also achieve the effect that the transmission power of 2-port SRS and 4-port SRS is always constant.
[0369] Of course, another solution is to always use 4-port SRS resources. Scaling is performed, where The first transmission power of the 2-port SRS resource is used, meaning it is not necessary to determine whether the transmission power of the 2-port SRS resource is greater than the maximum output power supported by the 2-port. .
[0370] The information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power based on the UE's maximum output power.
[0371] Method 1: The transmit power of each SRS port in the 4T6R SRS resource is determined based on the fact that there are 4 ports in the SRS resource. That is, for any SRS resource of 4T6R, each SRS port uses one-quarter of the calculated transmit power.
[0372] Method 2: According to the power control strategy in Rel-15 / Rel-16, if the UE can transmit 2-port SRS resources at the calculated transmit power, the transmit power of each calculated SRS resource is evenly distributed across all SRS antenna ports. Otherwise, the transmit power of the calculated 4-port SRS resources is scaled with s, where s is the ratio of the maximum transmit power supported by the 2-port SRS resources to the calculated transmit power of the 2-port SRS resources.
[0373] Alternatively, the transmit power of each SRS resource can be calculated first according to the power control mechanism in Rel-15 / Rel-16. If the calculated transmit power of a 2-port SRS resource is scaled, the calculated transmit power of a 4-port SRS resource will also be scaled accordingly to ensure that the transmit power ratio of the 2-port SRS resource is the same as that of the 2-port SRS resource. The 4-port SRS resource remains unchanged.
[0374] The gNB indicates the 4T6R transmit power determination scheme to the UE. The candidate determination scheme may include one of Method 1 and Method 2, as well as the traditional power control strategy in Rel-15 / Rel-16. Whether the UE supports the traditional power control strategy depends on the UE's capabilities.
[0375] The transmission power of the target SRS is determined by the information indicating the SRS transmission power determination method, and different implementation methods are provided for determining the transmission power of the target SRS, increasing the flexibility of system scheduling.
[0376] A method for determining SRS transmission power, characterized in that it includes:
[0377] The terminal sends configuration information associated with one or more SRSs to the terminal so that the terminal can determine the transmission power of the target SRS based on the transmission capacity associated with the one or more SRSs and / or the configuration information associated with the one or more SRSs; the target SRS is one of the one or more SRSs.
[0378] Figure 2 This is a second schematic flowchart of the SRS transmission power determination method provided in the embodiments of this application, as shown below. Figure 2 As shown in the embodiment of this application, an SRS transmission power determination method is provided. The executing entity can be a network device, such as a base station. The method includes:
[0379] The terminal sends configuration information associated with one or more SRSs to the terminal so that the terminal determines the transmission power of a target SRS based on the transmission capacity associated with the one or more SRSs and / or the configuration information associated with the one or more SRSs; the target SRS is one of the one or more SRSs.
[0380] Specifically, the base station sends configuration information to the terminal. This configuration information is used to determine the transmission power of the SRS, and the transmission capability is also used to determine the transmission power of the SRS. The terminal determines the transmission power of the target SRS based on the transmission capability and the configuration information.
[0381] By sending configuration information to the terminal so that the terminal can determine the transmission power of the target SRS, the flexibility of system scheduling is increased, so that network devices can make correct judgments on DL CSI quality and thus achieve optimal downlink scheduling.
[0382] In some embodiments, one or more SRSs sent by the terminal are received;
[0383] The DL CSI is determined based on the transmission power associated with the SRS.
[0384] Specifically, after determining the transmission power of the SRS, the terminal sends the SRS to the base station based on the determined transmission power, and the base station receives the SRS sent by the terminal. After receiving the SRS sent by the terminal, the base station determines the relative relationship between the transmission power associated with the SRS, and determines the DL CSI or UL CSI based on the relative relationship.
[0385] For example, the base station receives 2-port SRS and 4-port SRS, determines that the transmission power of 2-port SRS is half that of 4-port SRS, compares the DL CSI or ULCSI between 2-port and 4-port based on the relationship between the transmission power of 2-port and 4-port, obtains the relative channel quality of DL CSI or ULCSI, and thus performs downlink scheduling better.
[0386] By receiving the SRS sent by the terminal, the relative channel quality of DL CSI is determined, thereby enabling better downlink scheduling.
[0387] In some embodiments, the transmission capability includes one or more of the following:
[0388] The power capability of SRS transmission supported by the terminal;
[0389] The maximum number of transmit antennas supported by the terminal;
[0390] The terminal supports full-power transmission mode;
[0391] The terminal supports the following SRS transmission port switching diagram.
[0392] Specifically, for example, transmission capabilities include the power capability of SRS transmission supported by the terminal, the maximum number of transmit antennas supported by the terminal, and the SRS transmission port switching pattern supported by the terminal.
[0393] For example, transmission capabilities include the power capability of SRS transmission supported by the terminal, the maximum number of transmit antennas supported by the terminal, the full-power transmission mode supported by the terminal, and the SRS transmission port switching pattern supported by the terminal.
[0394] By determining the transmission capacity, the terminal can determine the transmission power of SRS using the power control parameters configured on the network device.
[0395] In some embodiments, the configuration information includes one or more of the following:
[0396] Information indicating the SRS transmission port switching pattern;
[0397] Information indicating the method for determining SRS transmission power.
[0398] For example, the configuration information includes information indicating the SRS transmission port switching pattern.
[0399] For example, the configuration information includes information indicating the method for determining SRS transmission power.
[0400] For example, the configuration information includes information indicating the SRS transmission port switching pattern and information indicating the SRS transmission power determination method.
[0401] Information indicating the SRS transmission port switching pattern is used to indicate the SRS transmission port switching pattern. The SRS transmission port switching pattern can also be called the SRS antenna switching pattern.
[0402] For example, the information indicating the SRS transmission port switching pattern indicates that the SRS transmission port switching pattern is 4T6R.
[0403] For example, the information indicating the SRS transmission port switching pattern indicates that the SRS transmission port switching pattern is 1T6R.
[0404] The information indicating the method for determining SRS transmission power is used to instruct the terminal on the basis for determining the SRS transmission power.
[0405] For example, the information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power based on the SRS transmission port switching pattern corresponding to the SRS resource set.
[0406] For example, information indicating the SRS transmission power determination method instructs the terminal to determine the SRS transmission power based on the transmission capabilities reported by the terminal associated with one or more SRSs.
[0407] In some embodiments, the configuration information may also include one or more of the following:
[0408] Power control parameters;
[0409] The number of antenna ports corresponding to the target SRS;
[0410] Specifically, for example, the configuration information includes information indicating the SRS transmission port switching pattern and power control parameters.
[0411] For example, configuration information includes power control parameters and the number of antenna ports corresponding to the target SRS.
[0412] For example, the configuration information includes information indicating the SRS transmission port switching pattern, information indicating the SRS transmission power determination method, power control parameters, and the number of antenna ports corresponding to the target SRS.
[0413] By determining the configuration information, the terminal can use the power control parameters configured on the network device to determine the transmission power of SRS.
[0414] The SRS transmission power determination method provided in this application determines the transmission power of the target SRS by utilizing transmission capacity and / or configuration information, thereby increasing the flexibility of system scheduling and enabling network devices to correctly judge the quality of DL CSI or UL CSL, thus achieving optimal downlink or uplink scheduling.
[0415] Figure 3 This is one of the structural schematic diagrams of an electronic device provided in the embodiments of this application, such as... Figure 3 As shown, the terminal includes a memory 320, a transceiver 300, and a processor 310, wherein:
[0416] The memory 320 is used to store computer programs; the transceiver 300 is used to send and receive data under the control of the processor 310; the processor 310 is used to read the computer program in the memory 320 and perform the following operations:
[0417] Determine the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs;
[0418] The transmission power of the target SRS is determined based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is an SRS among one or more SRSs.
[0419] Specifically, transceiver 300 is used to receive and send data under the control of processor 310.
[0420] Among them, Figure 3 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 310 and memory represented by memory 320 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 300 can be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, the user interface 330 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.
[0421] The processor 310 is responsible for managing the bus architecture and general processing, while the memory 320 can store the data used by the processor 310 during operation.
[0422] Optionally, the processor 310 can be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.
[0423] The processor executes any of the methods provided in the embodiments of this application by calling a computer program stored in memory, according to the obtained executable instructions. The processor and memory may also be physically separated.
[0424] In some embodiments, the one or more SRS are used for DL CSI acquisition, or for UL CSI acquisition, or for interference measurement, or for beam management.
[0425] In some embodiments, the configuration information includes one or more of the following:
[0426] Information indicating the SRS transmission port switching pattern;
[0427] Information indicating the method for determining SRS transmission power.
[0428] In some embodiments, when the configuration information includes information indicating an SRS transmission port switching pattern, determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes:
[0429] The transmission power of the target SRS is determined based on the information from the indicated SRS transmission port switching pattern.
[0430] In some embodiments, determining the transmission power of the target SRS based on the information of the indicated SRS transmission port switching pattern includes:
[0431] When the information indicating the SRS transmission port switching pattern indicates a first pattern, the transmission power of the target SRS is determined using a first method; or,
[0432] When the information indicating the SRS transmission port switching pattern indicates a second pattern, the transmission power of the target SRS is determined using a second method.
[0433] In some embodiments, determining the transmission power of the target SRS based on the information of the indicated SRS transmission port switching pattern includes:
[0434] The SRS transmission port switching pattern is determined based on the configuration of the SRS resource set corresponding to the target SRS;
[0435] The transmission power of the target SRS is determined based on the SRS transmission port switching pattern.
[0436] In some embodiments, the information indicating the SRS transmission power determination method is used to indicate one or more of the following:
[0437] The terminal is instructed to determine the SRS transmission power based on the SRS transmission port switching pattern corresponding to the SRS resource set.
[0438] The terminal determines the SRS transmission power based on the SRS transmission port switching pattern indicated by the information in the SRS transmission port switching pattern.
[0439] The terminal is instructed to determine the transmission power of the SRS based on the transmission capacity reported by the terminal and associated with one or more SRSs.
[0440] The terminal is instructed to determine the transmission power of the SRS based on the number of antenna ports corresponding to the SRS.
[0441] The terminal is instructed to determine the transmission power of the SRS based on the configuration information of the SRS resources corresponding to the one or more SRSs.
[0442] The terminal is instructed to determine the SRS transmission power corresponding to the SRS resource for the specified SRS transmission port switching pattern according to the second method.
[0443] The terminal is instructed to determine the transmission power of the SRS corresponding to the SRS resource for a specified SRS transmission port switching pattern based on the number of antenna ports corresponding to the SRS resource and the number of first antenna ports corresponding to multiple SRS resources, wherein the number of first antenna ports is the maximum or minimum value among the number of antenna ports configured for the multiple SRS resources.
[0444] The terminal is instructed to determine the transmission power of the SRS based on whether all or some of the SRSs can reach the maximum output power corresponding to each of the one or more SRSs.
[0445] The terminal is instructed to determine the SRS transmission power based on the maximum output power achievable by the SRS resources with the corresponding number of ports being the number of ports of the first antenna.
[0446] The terminal is instructed to determine the SRS transmission power based on the terminal's maximum output power.
[0447] In some embodiments, determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes:
[0448] When the number of antenna ports corresponding to the target SRS is a first number, the transmission power of the target SRS is determined using a first method; or,
[0449] When the number of antenna ports corresponding to the target SRS is the second number, the transmission power of the target SRS is determined using the second method.
[0450] In some embodiments, the transmission capability includes one or more of the following:
[0451] The power capability of SRS transmission supported by the terminal;
[0452] The maximum number of transmit antennas supported by the terminal;
[0453] The terminal supports full-power transmission mode;
[0454] The terminal supports the following SRS transmission port switching diagram.
[0455] In some embodiments, the power capability of the SRS transmission supported by the terminal includes one or more of the following:
[0456] Whether the SRS corresponding to a specified number of antenna ports can achieve the maximum transmission power;
[0457] The ability of the SRS corresponding to all SRS resources of the specified SRS transmission port switching pattern to achieve the maximum transmission power.
[0458] Whether the SRS corresponding to the SRS resource with fewer than the number of antenna ports is capable of reaching the maximum transmission power.
[0459] In some embodiments, the maximum number of transmit antennas supported by the terminal includes one or more of the following:
[0460] The terminal supports the maximum number of transmit antennas corresponding to one SRS.
[0461] The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal.
[0462] The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal.
[0463] The number of transmit antennas supported by the terminal to reach the maximum transmit power corresponding to the terminal's power level.
[0464] The number of transmit antennas supported by the terminal to reach the maximum transmit power indicated by the network device;
[0465] The number of antennas that the terminal supports for full-power transmission.
[0466] The terminal supports the number of antennas that can transmit at full power simultaneously.
[0467] The number of transmit antennas that the terminal supports simultaneously transmitting at the maximum transmit power corresponding to the terminal's power level.
[0468] In some embodiments, determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes:
[0469] Based on the transmission capabilities supported by the terminal, determine whether the target SRS can reach the maximum transmission power indicated by the network device; based on whether the target SRS can reach the maximum transmission power indicated by the network device, determine the transmission power of the target SRS.
[0470] or,
[0471] The transmission power of the target SRS is determined based on whether the number of antenna ports corresponding to the target SRS is equal to the maximum number of transmit antennas supported by the terminal.
[0472] or,
[0473] The transmission power of the target SRS is determined based on the full-power transmission mode supported by the terminal;
[0474] or,
[0475] The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal.
[0476] In some embodiments, determining the transmission power of the target SRS based on whether the target SRS can reach the maximum transmission power indicated by the network device includes:
[0477] If the target SRS reaches the maximum transmit power indicated by the network device, the transmission power of the SRS is determined using the first method; or,
[0478] If the target SRS cannot reach the maximum transmission power indicated by the network device, the transmission power of the SRS is determined using a second method.
[0479] In some embodiments, determining the transmission power of the target SRS based on whether the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal includes:
[0480] If the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the first method; or,
[0481] If the number of antenna ports corresponding to the SRS is less than the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the second method.
[0482] In some embodiments, determining the transmission power of the target SRS based on the SRS transmission port switching pattern supported by the terminal includes:
[0483] If the SRS transmission port switching pattern supported by the terminal is the first pattern, the SRS transmission power is determined using the first method; or,
[0484] When the SRS transmission port switching pattern supported by the terminal is the second pattern, the SRS transmission power is determined using the second method.
[0485] In some embodiments, the first approach includes one or more of the following:
[0486] The first transmission power corresponding to the target SRS is evenly divided according to the number of first antenna ports, and the result of the equalization is taken as the transmission power of each antenna port of the target SRS resource; or...
[0487] Divide the first transmission power corresponding to the target SRS by the number of first antenna ports, and use the result as the transmission power of each antenna port of the target SRS resource; or,
[0488] The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the first coefficient corresponding to the target SRS; or...
[0489] The second transmission power is determined based on the first coefficient, and the transmission power corresponding to each antenna port of the target SRS is determined based on the second transmission power; or...
[0490] The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the second coefficient corresponding to the target SRS.
[0491] Wherein, the first coefficient is a preset value or a coefficient determined based on the number of antenna ports of the target SRS and the number of first antenna ports, the number of first antenna ports being the maximum or minimum number of antenna ports configured among multiple SRS resources, and the second coefficient being a coefficient determined based on the maximum output power that the corresponding SRS or SRS resource with the number of first antenna ports can achieve, and the first transmission power corresponding to the corresponding SRS or SRS resource with the number of first antenna ports; or, the second coefficient is a coefficient determined based on the maximum output power of the terminal and the first transmission power corresponding to the corresponding SRS resource with the number of first antenna ports.
[0492] In some embodiments, the first coefficient is a coefficient determined based on the number of antenna ports and the second number of antenna ports of the target SRS, including:
[0493] The first coefficient is determined based on the ratio of the number of antenna ports of the target SRS to the number of antenna ports of the first antenna port, or the first coefficient is determined based on the ratio of the number of antenna ports of the first antenna port to the number of antenna ports of the target SRS.
[0494] In some embodiments, the second approach includes:
[0495] Determine the first transmission power corresponding to the target SRS, and distribute the first transmission power equally among all antenna ports of the target SRS.
[0496] In some embodiments, it also includes:
[0497] Determine the first transmission power corresponding to the target SRS, and scale the transmission power of the target SRS so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value; or, the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value; or, the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predefined fixed value.
[0498] Wherein, the target SRS is an SRS with a specified first number of antenna ports; the first SRS is an SRS with a specified second number of antenna ports.
[0499] It should be noted that the electronic device provided in this embodiment of the invention can implement all the method steps implemented by the method embodiment with the terminal as the execution subject, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.
[0500] Figure 4 This is a schematic diagram of the structure of a network device provided in an embodiment of this application, such as... Figure 4 As shown, the network device includes a memory 420, a transceiver 400, and a processor 410, wherein:
[0501] The memory 420 is used to store computer programs; the transceiver 400 is used to send and receive data under the control of the processor 410; the processor 410 is used to read the computer program in the memory 420 and perform the following operations:
[0502] The terminal sends configuration information associated with one or more SRSs to enable the terminal to determine the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs.
[0503] Specifically, transceiver 400 is used to receive and send data under the control of processor 410.
[0504] Among them, Figure 4In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 410) and memory (memory 420). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 400 can be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 410 during operation.
[0505] The processor 410 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.
[0506] In some embodiments, it also includes:
[0507] Receive one or more SRSs sent by the terminal;
[0508] The DL CSI or UL CSI is determined based on the transmission power associated with the SRS.
[0509] In some embodiments, transmission capabilities include one or more of the following:
[0510] The power capability of SRS transmission supported by the terminal;
[0511] The maximum number of transmit antennas supported by the terminal;
[0512] The terminal supports full-power transmission mode;
[0513] The terminal supports the following SRS transmission port switching diagram.
[0514] In some embodiments, the configuration information includes one or more of the following:
[0515] Information indicating the SRS transmission port switching pattern;
[0516] Information indicating the method for determining SRS transmission power.
[0517] It should be noted that the network device provided in this application embodiment can implement all the method steps implemented by the method embodiment with the base station as the execution subject, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.
[0518] Figure 5 This is one of the structural schematic diagrams of the SRS transmission power determination device provided in the embodiments of this application, such as... Figure 5 As shown, this application also provides an SRS transmission power determination device, including a first determination module 501 and a second determination module 502, wherein:
[0519] The first determining module 501 is used to determine the transmission capabilities associated with one or more SRSs and / or the configuration information associated with one or more SRSs.
[0520] The second determining module 502 is used to determine the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is an SRS among one or more SRSs.
[0521] In some embodiments, the one or more SRS are used for DL CSI acquisition, or for UL CSI acquisition, or for interference measurement, or for beam management.
[0522] In some embodiments, the configuration information includes one or more of the following:
[0523] Information indicating the SRS transmission port switching pattern;
[0524] Information indicating the method for determining SRS transmission power.
[0525] In some embodiments, the second determining module 502 further includes a first determining submodule; when the configuration information includes information indicating an SRS transmission port switching pattern, the first determining submodule is used to determine the transmission power of the target SRS based on the information indicating the SRS transmission port switching pattern.
[0526] In some embodiments, the first determining submodule includes a second determining submodule and a third determining submodule; the second determining submodule is used to determine the transmission power of the target SRS using a first method when the information indicating the SRS transmission port switching pattern indicates a first pattern; the third determining submodule is used to determine the transmission power of the target SRS using a second method when the information indicating the SRS transmission port switching pattern indicates a second pattern.
[0527] In some embodiments, the first determining submodule may further include a fourth determining submodule and a fifth determining submodule; the fourth determining submodule determines the SRS transmission port switching pattern according to the configuration of the SRS resource set corresponding to the target SRS; the fifth determining submodule determines the transmission power of the target SRS according to the SRS transmission port switching pattern.
[0528] In some embodiments, the information indicating the SRS transmission power determination method is used to indicate one or more of the following:
[0529] The terminal is instructed to determine the SRS transmission power based on the SRS transmission port switching pattern corresponding to the SRS resource set.
[0530] The terminal determines the SRS transmission power based on the SRS transmission port switching pattern indicated by the information in the SRS transmission port switching pattern.
[0531] The terminal is instructed to determine the transmission power of the SRS based on the transmission capacity reported by the terminal and associated with one or more SRSs.
[0532] The terminal is instructed to determine the transmission power of the SRS based on the number of antenna ports corresponding to the target SRS.
[0533] The terminal is instructed to determine the transmission power of the SRS based on the configuration information of the SRS resources corresponding to the one or more SRSs.
[0534] The terminal is instructed to determine the SRS transmission power corresponding to the SRS resource for the specified SRS transmission port switching pattern according to the second method.
[0535] The terminal is instructed to determine the transmission power of the SRS corresponding to the SRS resource for a specified SRS transmission port switching pattern based on the number of antenna ports corresponding to the SRS resource and the number of first antenna ports corresponding to multiple SRS resources, wherein the number of first antenna ports is the maximum or minimum value among the number of antenna ports configured for the multiple SRS resources.
[0536] The terminal is instructed to determine the transmission power of the SRS based on whether all or some of the SRSs can reach the maximum output power corresponding to each of the one or more SRSs.
[0537] The terminal is instructed to determine the SRS transmission power based on the maximum output power achievable by the SRS resources with the corresponding number of ports being the number of ports of the first antenna.
[0538] The terminal is instructed to determine the SRS transmission power based on the terminal's maximum output power.
[0539] In some embodiments, the second determining module 502 further includes a sixth determining submodule and a seventh determining submodule; the sixth determining submodule determines the transmission power of the target SRS using a first method when the number of antenna ports corresponding to the target SRS is a first number; the seventh determining submodule determines the transmission power of the target SRS using a second method when the number of antenna ports corresponding to the target SRS is a second number.
[0540] In some embodiments, the transmission capability includes one or more of the following:
[0541] The power capability of SRS transmission supported by the terminal;
[0542] The maximum number of transmit antennas supported by the terminal;
[0543] The terminal supports full-power transmission mode;
[0544] The terminal supports the following SRS transmission port switching diagram.
[0545] In some embodiments, the power capability of the SRS transmission supported by the terminal includes one or more of the following:
[0546] The ability of an SRS with a specified number of antenna ports to achieve maximum output power.
[0547] The ability of all SRS resources corresponding to the specified SRS transmission port switching pattern to achieve maximum output power;
[0548] Whether the SRS corresponding to the SRS resource with fewer than the number of antenna ports is capable of achieving maximum output power.
[0549] In some embodiments, the maximum number of transmit antennas supported by the terminal includes one or more of the following:
[0550] The terminal supports the maximum number of transmit antennas corresponding to one SRS.
[0551] The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal.
[0552] The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal.
[0553] The number of transmitting antennas supported by the terminal to achieve the maximum output power corresponding to the terminal's power level.
[0554] The number of transmit antennas supported by the terminal to reach the maximum output power indicated by the network device.
[0555] The number of antennas that the terminal supports for full-power transmission.
[0556] The terminal supports the number of antennas that can transmit at full power simultaneously.
[0557] The terminal supports the number of transmitting antennas that can simultaneously transmit at the maximum output power corresponding to the terminal's power level.
[0558] In some embodiments, the second determining module 502 further includes an eighth determining submodule, which is configured to determine whether the target SRS can reach the maximum output power indicated by the network device based on the transmission capability supported by the terminal, and to determine the transmission power of the target SRS based on whether the target SRS can reach the maximum output power indicated by the network device;
[0559] or,
[0560] The transmission power of the target SRS is determined based on whether the number of antenna ports corresponding to the target SRS is equal to the maximum number of transmit antennas supported by the terminal.
[0561] or,
[0562] The transmission power of the target SRS is determined based on the full-power transmission mode supported by the terminal;
[0563] or,
[0564] The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal.
[0565] In some embodiments, the eighth determining submodule includes a ninth determining submodule and a tenth determining submodule; the ninth determining submodule is used to determine the transmission power of the SRS using a first method when the target SRS reaches the maximum output power indicated by the network device; the tenth determining submodule is used to determine the transmission power of the SRS using a second method when the target SRS cannot reach the maximum output power indicated by the network device.
[0566] In some embodiments, the eighth determining submodule further includes an eleventh determining submodule and a twelfth determining submodule; the eleventh determining submodule determines the transmission power of the SRS using a first method when the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal; the twelfth determining submodule determines the transmission power of the SRS using a second method when the number of antenna ports corresponding to the SRS is less than the maximum number of transmit antennas supported by the terminal.
[0567] In some embodiments, the eighth determining submodule further includes a thirteenth determining submodule and a fourteenth determining submodule; the thirteenth determining submodule is used to determine the SRS transmission power using a first method when the SRS transmission port switching pattern supported by the terminal is a first pattern; the fourteenth determining submodule is used to determine the SRS transmission power using a second method when the SRS transmission port switching pattern supported by the terminal is a second pattern.
[0568] In some embodiments, the first approach includes one or more of the following:
[0569] The first transmission power corresponding to the target SRS is evenly divided according to the number of first antenna ports, and the result of the equalization is taken as the transmission power of each antenna port of the target SRS resource; or...
[0570] Divide the first transmission power corresponding to the target SRS by the number of first antenna ports, and use the result as the transmission power of each antenna port of the target SRS resource; or,
[0571] The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the first coefficient corresponding to the target SRS; or...
[0572] The second transmission power is determined based on the first coefficient, and the transmission power corresponding to each antenna port of the target SRS is determined based on the second transmission power; or...
[0573] The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the second coefficient corresponding to the target SRS.
[0574] Wherein, the first coefficient is a preset value or a coefficient determined based on the number of antenna ports of the target SRS and the number of first antenna ports, the number of first antenna ports being the maximum or minimum number of antenna ports configured among multiple SRS resources, and the second coefficient being a coefficient determined based on the maximum output power that the corresponding SRS or SRS resource with the number of first antenna ports can achieve, and the first transmission power corresponding to the corresponding SRS or SRS resource with the number of first antenna ports; or, the second coefficient is a coefficient determined based on the maximum output power of the terminal and the first transmission power corresponding to the corresponding SRS resource with the number of first antenna ports.
[0575] In some embodiments, the first coefficient is a coefficient determined based on the number of antenna ports and the second antenna port number of the target SRS, including:
[0576] The first coefficient is determined based on the ratio of the number of antenna ports of the target SRS to the number of the first antenna ports, or the first coefficient is determined based on the ratio of the number of the first antenna ports to the number of antenna ports of the target SRS.
[0577] In some embodiments, the second approach includes:
[0578] Determine the first transmission power corresponding to the target SRS, and distribute the first transmission power equally among all antenna ports of the target SRS.
[0579] In some embodiments, the method further includes: determining a first transmission power corresponding to the target SRS, scaling the transmission power of the target SRS such that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value, or the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predefined fixed value.
[0580] Wherein, the target SRS is an SRS with a specified first number of antenna ports; the first SRS is an SRS with a specified second number of antenna ports.
[0581] It should be noted that the SRS transmission power determination device provided in this application embodiment can implement all the method steps implemented by the method embodiment with the terminal as the execution subject, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.
[0582] Figure 6 This is a second schematic diagram of the SRS transmission power determination device provided in the embodiments of this application, as shown below. Figure 6 As shown, this application also provides an SRS transmission power determination device, including a transmission module 601.
[0583] The sending module 601 is used to send configuration information associated with one or more SRSs to the terminal, so that the terminal can determine the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs.
[0584] In some embodiments, the transmitting module 601 further includes a receiving module and a third determining module; the receiving module is configured to receive one or more SRSs transmitted by the terminal; the third determining module is configured to determine DL CSI or UL CSI based on the transmission power associated with the SRS.
[0585] In some embodiments, the transmission capability includes one or more of the following:
[0586] The power capability of SRS transmission supported by the terminal;
[0587] The maximum number of transmit antennas supported by the terminal;
[0588] The terminal supports full-power transmission mode;
[0589] The terminal supports the following SRS transmission port switching diagram.
[0590] In some embodiments, the configuration information includes one or more of the following:
[0591] Information indicating the SRS transmission port switching pattern;
[0592] Information indicating the method for determining SRS transmission power.
[0593] It should be noted that the SRS transmission power determination device provided in this application embodiment can implement all the method steps implemented by the method embodiment with the base station as the execution subject, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.
[0594] It should be noted that the division of units / modules in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.
[0595] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0596] In some embodiments, a processor-readable storage medium is also provided, storing a computer program for causing a processor to perform the methods provided in the above embodiments, including:
[0597] Determine the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs;
[0598] The transmission power of the target SRS is determined based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is an SRS among one or more SRSs.
[0599] Or include:
[0600] The terminal sends configuration information associated with one or more SRSs so that the terminal can determine the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs.
[0601] It should be noted that: processor-readable storage media can be any available medium or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), solid-state drives (SSDs)).
[0602] It should also be noted that the terms "first," "second," etc., used in the embodiments of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, and the number of objects is not limited. For example, the first object can be one or more.
[0603] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.
[0604] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.
[0605] The technical solutions provided in this application can be applied to various systems, especially 5G systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) and 5G systems (5GS).
[0606] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but this application does not limit the terminology.
[0607] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA) system, a NodeB in a wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may also be geographically separated.
[0608] Network devices and terminal devices can each use one or more antennas to perform multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.
[0609] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.
[0610] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0611] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0612] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0613] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A method for determining the transmission power of a Sounding Reference Signal (SRS), characterized in that, include: Determine the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; The configuration information includes information indicating the SRS transmission port switching pattern and / or information indicating the SRS transmission power determination method; The transmission power of the target SRS is determined based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs. The transmission capability includes one or more of the following: the power capability of SRS transmission supported by the terminal; the maximum number of transmit antennas supported by the terminal. Full-power transmission modes supported by the terminal; SRS transmission port switching patterns supported by the terminal; The SRS transmission power capability supported by the terminal includes one or more of the following: the ability of SRS corresponding to a specified number of antenna ports to achieve maximum transmission power; the ability of SRS corresponding to all SRS resources corresponding to a specified SRS transmission port switching pattern to achieve maximum transmission power; and the ability of SRS corresponding to SRS resources with a number of antenna ports less than the maximum number of transmission antennas supported by the terminal to achieve maximum transmission power. The maximum number of transmit antennas supported by the terminal includes one or more of the following: The terminal supports the maximum number of transmit antennas corresponding to one SRS. The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The number of transmit antennas supported by the terminal to reach the maximum transmit power corresponding to the terminal's power level. The number of transmit antennas supported by the terminal to reach the maximum transmit power indicated by the network device; The number of antennas that the terminal supports for full-power transmission. The terminal supports the number of antennas that can transmit at full power simultaneously. The number of transmit antennas that the terminal supports simultaneously transmitting at the maximum transmit power corresponding to the terminal's power level.
2. The SRS transmission power determination method according to claim 1, characterized in that, The one or more SRS are used for downlink DL channel state information (CSI) acquisition, uplink UL CSI acquisition, interference measurement, or beam management.
3. The SRS transmission power determination method according to claim 1, characterized in that, When the configuration information includes information indicating SRS transmission port switching patterns, determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes: The transmission power of the target SRS is determined based on the information from the indicated SRS transmission port switching pattern.
4. The SRS transmission power determination method according to claim 3, characterized in that, Determining the transmission power of the target SRS based on the information of the indicated SRS transmission port switching pattern includes: When the information indicating the SRS transmission port switching pattern indicates a first pattern, the transmission power of the target SRS is determined using a first method; or, When the information indicating the SRS transmission port switching pattern indicates a second pattern, the transmission power of the target SRS is determined using a second method.
5. The SRS transmission power determination method according to claim 3, characterized in that, Determining the transmission power of the target SRS based on the information of the indicated SRS transmission port switching pattern includes: The SRS transmission port switching pattern is determined based on the configuration of the SRS resource set corresponding to the target SRS; The transmission power of the target SRS is determined based on the SRS transmission port switching pattern.
6. The SRS transmission power determination method according to claim 1, characterized in that, The information indicating the SRS transmission power determination method is used to indicate one or more of the following: The terminal is instructed to determine the SRS transmission power based on the SRS transmission port switching pattern corresponding to the SRS resource set. The terminal determines the SRS transmission power based on the SRS transmission port switching pattern indicated by the information in the SRS transmission port switching pattern. The terminal is instructed to determine the transmission power of the SRS based on the transmission capacity reported by the terminal and associated with one or more SRSs. The terminal is instructed to determine the transmission power of the SRS based on the number of antenna ports corresponding to the SRS. The terminal is instructed to determine the transmission power of the SRS based on the configuration information of the SRS resources corresponding to the one or more SRSs. The terminal is instructed to determine the SRS transmission power corresponding to the SRS resource for the specified SRS transmission port switching pattern according to the second method. The terminal is instructed to determine the transmission power of the SRS corresponding to the SRS resource for a specified SRS transmission port switching pattern based on the number of antenna ports corresponding to the SRS resource and the number of first antenna ports corresponding to multiple SRS resources, wherein the number of first antenna ports is the maximum or minimum value among the number of antenna ports configured for the multiple SRS resources. The terminal is instructed to determine the transmission power of the SRS based on whether all or some of the SRSs can reach the maximum output power corresponding to each of the one or more SRSs. The terminal is instructed to determine the SRS transmission power based on the maximum output power achievable by the SRS resources with the corresponding number of ports being the number of ports of the first antenna. The terminal is instructed to determine the SRS transmission power based on the terminal's maximum output power.
7. The SRS transmission power determination method according to claim 1, characterized in that, Determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes: When the number of antenna ports corresponding to the target SRS is a first number, the transmission power of the target SRS is determined using a first method; or, When the number of antenna ports corresponding to the target SRS is the second number, the transmission power of the target SRS is determined using the second method.
8. The SRS transmission power determination method according to claim 1, characterized in that, Determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes: Based on the transmission capabilities supported by the terminal, determine whether the target SRS can reach the maximum transmission power indicated by the network device; based on whether the target SRS can reach the maximum transmission power indicated by the network device, determine the transmission power of the target SRS. or, The transmission power of the target SRS is determined based on whether the number of antenna ports corresponding to the target SRS is equal to the maximum number of transmit antennas supported by the terminal. or, The transmission power of the target SRS is determined based on the full-power transmission mode supported by the terminal; or, The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal.
9. The SRS transmission power determination method according to claim 8, characterized in that, Determining the transmission power of the target SRS based on whether it can reach the maximum transmission power indicated by the network device includes: If the target SRS reaches the maximum transmit power indicated by the network device, the transmission power of the SRS is determined using the first method; or, If the target SRS cannot reach the maximum transmission power indicated by the network device, the transmission power of the SRS is determined using a second method.
10. The SRS transmission power determination method according to claim 8, characterized in that, The step of determining the transmission power of the target SRS based on whether the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal includes: If the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the first method; or, If the number of antenna ports corresponding to the SRS is less than the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the second method.
11. The SRS transmission power determination method according to claim 8, characterized in that, The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal, including: If the SRS transmission port switching pattern supported by the terminal is the first pattern, the SRS transmission power is determined using the first method; or, When the SRS transmission port switching pattern supported by the terminal is the second pattern, the SRS transmission power is determined using the second method.
12. The SRS transmission power determination method according to any one of claims 4, 7, 9, 10 or 11, characterized in that, The first method includes one or more of the following: The first transmission power corresponding to the target SRS is divided equally according to the number of first antenna ports, and the result of the equalization is used as the transmission power of each antenna port of the target SRS resource. or, Divide the first transmission power corresponding to the target SRS by the number of first antenna ports, and use the result as the transmission power of each antenna port of the target SRS resource; or, The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the first coefficient corresponding to the target SRS. or, The second transmission power is determined based on the first coefficient, and the transmission power corresponding to each antenna port of the target SRS is determined based on the second transmission power; or... The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the second coefficient corresponding to the target SRS. Wherein, the first coefficient is a preset value or a coefficient determined based on the number of antenna ports of the target SRS and the number of first antenna ports, the number of first antenna ports being the maximum or minimum number of antenna ports configured among multiple SRS resources, and the second coefficient being a coefficient determined based on the maximum output power that the corresponding SRS or SRS resource with the number of first antenna ports can achieve, and the first transmission power corresponding to the corresponding SRS or SRS resource with the number of first antenna ports; or, the second coefficient is a coefficient determined based on the maximum output power of the terminal and the first transmission power corresponding to the corresponding SRS resource with the number of first antenna ports.
13. The SRS transmission power determination method according to claim 12, characterized in that, The first coefficient is a coefficient determined based on the number of antenna ports and the second number of antenna ports of the target SRS, including: The first coefficient is determined based on the ratio of the number of antenna ports of the target SRS to the number of antenna ports of the first antenna port, or the first coefficient is determined based on the ratio of the number of antenna ports of the first antenna port to the number of antenna ports of the target SRS.
14. The SRS transmission power determination method according to any one of claims 4, 6, 7, 9, 10 or 11, characterized in that, The second method includes: Determine the first transmission power corresponding to the target SRS, and distribute the first transmission power equally among all antenna ports of the target SRS.
15. The SRS transmission power determination method according to any one of claims 1-11, 13, characterized in that, Also includes: Determine the first transmission power corresponding to the target SRS, and scale the transmission power of the target SRS so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value; or, the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value; or, the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predefined fixed value. Wherein, the target SRS is an SRS with the number of antenna ports being a specified first value; The first SRS is an SRS with the number of antenna ports being a specified second value.
16. A method for determining the transmission power of a sounding reference signal (SRS), characterized in that, include: The terminal sends configuration information associated with one or more SRSs to the terminal so that the terminal determines the transmission power of a target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs. The configuration information includes information indicating the SRS transmission port switching pattern and / or information indicating the SRS transmission power determination method; The transmission capability includes one or more of the following: the power capability of SRS transmission supported by the terminal; the maximum number of transmit antennas supported by the terminal. Full-power transmission modes supported by the terminal; SRS transmission port switching patterns supported by the terminal; The SRS transmission power capability supported by the terminal includes one or more of the following: the ability of SRS corresponding to a specified number of antenna ports to achieve maximum transmission power; the ability of SRS corresponding to all SRS resources corresponding to a specified SRS transmission port switching pattern to achieve maximum transmission power; and the ability of SRS corresponding to SRS resources with a number of antenna ports less than the maximum number of transmission antennas supported by the terminal to achieve maximum transmission power. The maximum number of transmit antennas supported by the terminal includes one or more of the following: The terminal supports the maximum number of transmit antennas corresponding to one SRS. The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The number of transmit antennas supported by the terminal to reach the maximum transmit power corresponding to the terminal's power level. The number of transmit antennas supported by the terminal to reach the maximum transmit power indicated by the network device; The number of antennas that the terminal supports for full-power transmission. The terminal supports the number of antennas that can transmit at full power simultaneously. The number of transmit antennas that the terminal supports simultaneously transmitting at the maximum transmit power corresponding to the terminal's power level.
17. The SRS transmission power determination method according to claim 16, characterized in that, Also includes: Receive one or more SRSs sent by the terminal; The downlink DL channel state information (CSI) or uplink UL CSI is determined based on the transmission power associated with the one or more SRSs.
18. An electronic device, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Determine the transmission capacity associated with one or more Sounding Reference Signals (SRS) and / or the configuration information associated with one or more SRS; the configuration information includes information indicating the SRS transmission port switching pattern and / or information indicating the SRS transmission power determination method; The transmission power of the target SRS is determined based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs. The transmission capability includes one or more of the following: the power capability of SRS transmission supported by the terminal; the maximum number of transmit antennas supported by the terminal. Full-power transmission modes supported by the terminal; SRS transmission port switching patterns supported by the terminal; The SRS transmission power capability supported by the terminal includes one or more of the following: the ability of SRS corresponding to a specified number of antenna ports to achieve maximum transmission power; the ability of SRS corresponding to all SRS resources corresponding to a specified SRS transmission port switching pattern to achieve maximum transmission power; and the ability of SRS corresponding to SRS resources with a number of antenna ports less than the maximum number of transmission antennas supported by the terminal to achieve maximum transmission power. The maximum number of transmit antennas supported by the terminal includes one or more of the following: The terminal supports the maximum number of transmit antennas corresponding to one SRS. The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The number of transmit antennas supported by the terminal to reach the maximum transmit power corresponding to the terminal's power level. The number of transmit antennas supported by the terminal to reach the maximum transmit power indicated by the network device; The number of antennas that the terminal supports for full-power transmission. The terminal supports the number of antennas that can transmit at full power simultaneously. The number of transmit antennas that the terminal supports simultaneously transmitting at the maximum transmit power corresponding to the terminal's power level.
19. The electronic device according to claim 18, characterized in that, The one or more SRS are used for downlink DL channel state information (CSI) acquisition, uplink UL CSI acquisition, interference measurement, or beam management.
20. The electronic device according to claim 18, characterized in that, When the configuration information includes information indicating SRS transmission port switching patterns, determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes: The transmission power of the target SRS is determined based on the information from the indicated SRS transmission port switching pattern.
21. The electronic device according to claim 20, characterized in that, Determining the transmission power of the target SRS based on the information of the indicated SRS transmission port switching pattern includes: When the information indicating the SRS transmission port switching pattern indicates a first pattern, the transmission power of the target SRS is determined using a first method; or, When the information indicating the SRS transmission port switching pattern indicates a second pattern, the transmission power of the target SRS is determined using a second method.
22. The electronic device according to claim 20, characterized in that, Determining the transmission power of the target SRS based on the information of the indicated SRS transmission port switching pattern includes: The SRS transmission port switching pattern is determined based on the configuration of the SRS resource set corresponding to the target SRS; The transmission power of the target SRS is determined based on the SRS transmission port switching pattern.
23. The electronic device according to claim 20, characterized in that, The information indicating the SRS transmission power determination method is used to indicate one or more of the following: The terminal is instructed to determine the SRS transmission power based on the SRS transmission port switching pattern corresponding to the SRS resource set. The terminal determines the SRS transmission power based on the SRS transmission port switching pattern indicated by the information in the SRS transmission port switching pattern. The terminal is instructed to determine the transmission power of the SRS based on the transmission capacity reported by the terminal and associated with one or more SRSs. The terminal is instructed to determine the transmission power of the SRS based on the number of antenna ports corresponding to the SRS. The terminal is instructed to determine the transmission power of the SRS based on the configuration information of the SRS resources corresponding to the one or more SRSs. The terminal is instructed to determine the SRS transmission power corresponding to the SRS resource for the specified SRS transmission port switching pattern according to the second method. The terminal is instructed to determine the transmission power of the SRS corresponding to the SRS resource for a specified SRS transmission port switching pattern based on the number of antenna ports corresponding to the SRS resource and the number of first antenna ports corresponding to multiple SRS resources, wherein the number of first antenna ports is the maximum or minimum value among the number of antenna ports configured for the multiple SRS resources. The terminal is instructed to determine the transmission power of the SRS based on whether all or some of the SRSs can reach the maximum output power corresponding to each of the one or more SRSs. The terminal is instructed to determine the SRS transmission power based on the maximum output power achievable by the SRS resources with the corresponding number of ports being the number of ports of the first antenna. The terminal is instructed to determine the SRS transmission power based on the terminal's maximum output power.
24. The electronic device according to claim 18, characterized in that, Determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes: When the number of antenna ports corresponding to the target SRS is a first number, the transmission power of the target SRS is determined using a first method; or, When the number of antenna ports corresponding to the target SRS is the second number, the transmission power of the target SRS is determined using the second method.
25. The electronic device according to claim 18, characterized in that, Determining the transmission power of the target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs includes: Based on the transmission capabilities supported by the terminal, determine whether the target SRS can reach the maximum transmission power indicated by the network device; based on whether the target SRS can reach the maximum transmission power indicated by the network device, determine the transmission power of the target SRS. or, The transmission power of the target SRS is determined based on whether the number of antenna ports corresponding to the target SRS is equal to the maximum number of transmit antennas supported by the terminal. or, The transmission power of the target SRS is determined based on the full-power transmission mode supported by the terminal; or, The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal.
26. The electronic device according to claim 25, characterized in that, Determining the transmission power of the target SRS based on whether it can reach the maximum transmission power indicated by the network device includes: If the target SRS reaches the maximum transmit power indicated by the network device, the transmission power of the SRS is determined using the first method; or, If the target SRS cannot reach the maximum transmission power indicated by the network device, the transmission power of the SRS is determined using a second method.
27. The electronic device according to claim 25, characterized in that, The step of determining the transmission power of the target SRS based on whether the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal includes: If the number of antenna ports corresponding to the SRS is equal to the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the first method; or, If the number of antenna ports corresponding to the SRS is less than the maximum number of transmit antennas supported by the terminal, the transmission power of the SRS is determined using the second method.
28. The electronic device according to claim 25, characterized in that, The transmission power of the target SRS is determined based on the SRS transmission port switching pattern supported by the terminal, including: If the SRS transmission port switching pattern supported by the terminal is the first pattern, the SRS transmission power is determined using the first method; or, When the SRS transmission port switching pattern supported by the terminal is the second pattern, the SRS transmission power is determined using the second method.
29. The electronic device according to any one of claims 21, 24, 26, 27 or 28, characterized in that, The first method includes one or more of the following: The first transmission power corresponding to the target SRS is divided equally according to the number of first antenna ports, and the result of the equalization is used as the transmission power of each antenna port of the target SRS resource. or, Divide the first transmission power corresponding to the target SRS by the number of first antenna ports, and use the result as the transmission power of each antenna port of the target SRS resource; or, The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the first coefficient corresponding to the target SRS. or, The second transmission power is determined based on the first coefficient, and the transmission power corresponding to each antenna port of the target SRS is determined based on the second transmission power; or... The transmission power corresponding to each antenna port of the target SRS is determined based on the first transmission power and the second coefficient corresponding to the target SRS. Wherein, the first coefficient is a preset value or a coefficient determined based on the number of antenna ports of the target SRS and the number of first antenna ports, the number of first antenna ports being the maximum or minimum number of antenna ports configured among multiple SRS resources, and the second coefficient being a coefficient determined based on the maximum output power that the corresponding SRS or SRS resource with the number of first antenna ports can achieve, and the first transmission power corresponding to the corresponding SRS or SRS resource with the number of first antenna ports; or, the second coefficient is a coefficient determined based on the maximum output power of the terminal and the first transmission power corresponding to the corresponding SRS resource with the number of first antenna ports.
30. The electronic device according to claim 29, characterized in that, The first coefficient is a coefficient determined based on the number of antenna ports and the second number of antenna ports of the target SRS, including: The first coefficient is determined based on the ratio of the number of antenna ports of the target SRS to the number of antenna ports of the first antenna port, or the first coefficient is determined based on the ratio of the number of antenna ports of the first antenna port to the number of antenna ports of the target SRS.
31. The electronic device according to any one of claims 21, 23, 24, 26, 27 or 28, characterized in that, The second method includes: Determine the first transmission power corresponding to the target SRS, and distribute the first transmission power equally among all antenna ports of the target SRS.
32. The electronic device according to any one of claims 18-28, 30, characterized in that, Also includes: Determine the first transmission power corresponding to the target SRS, and scale the transmission power of the target SRS so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value; or, the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value; or, the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predefined fixed value. Wherein, the target SRS is an SRS with the number of antenna ports being a specified first value; The first SRS is an SRS with the number of antenna ports being a specified second value.
33. A network device, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Configuration information associated with one or more Sounding Reference Signals (SRSs) is sent to a terminal so that the terminal determines the transmission power of a target SRS based on the transmission capacity associated with the one or more SRSs and / or the configuration information associated with the one or more SRSs; the target SRS is one of the one or more SRSs. The configuration information includes information indicating the SRS transmission port switching pattern and / or information indicating the SRS transmission power determination method; The transmission capability includes one or more of the following: the power capability of SRS transmission supported by the terminal; the maximum number of transmit antennas supported by the terminal; the full-power transmission mode supported by the terminal; and the SRS transmission port switching pattern supported by the terminal. The SRS transmission power capability supported by the terminal includes one or more of the following: the ability of SRS corresponding to a specified number of antenna ports to achieve maximum transmission power; the ability of SRS corresponding to all SRS resources corresponding to a specified SRS transmission port switching pattern to achieve maximum transmission power; and the ability of SRS corresponding to SRS resources with a number of antenna ports less than the maximum number of transmission antennas supported by the terminal to achieve maximum transmission power. The maximum number of transmit antennas supported by the terminal includes one or more of the following: The terminal supports the maximum number of transmit antennas corresponding to one SRS. The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The number of transmit antennas supported by the terminal to reach the maximum transmit power corresponding to the terminal's power level. The number of transmit antennas supported by the terminal to reach the maximum transmit power indicated by the network device; The number of antennas that the terminal supports for full-power transmission. The terminal supports the number of antennas that can transmit at full power simultaneously. The number of transmit antennas that the terminal supports simultaneously transmitting at the maximum transmit power corresponding to the terminal's power level.
34. The network device according to claim 33, characterized in that, Also includes: Receive one or more SRSs sent by the terminal; The downlink DL channel state information (CSI) or uplink UL CSI is determined based on the transmission power associated with the one or more SRSs.
35. A device for determining the transmission power of a reference signal (SRS), characterized in that, include: The first determining module is used to determine the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; The configuration information includes information indicating the SRS transmission port switching pattern and / or information indicating the SRS transmission power determination method; The second determining module is configured to determine the transmission power of a target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs. The transmission capability includes one or more of the following: the power capability of SRS transmission supported by the terminal; the maximum number of transmit antennas supported by the terminal. Full-power transmission modes supported by the terminal; SRS transmission port switching patterns supported by the terminal; The SRS transmission power capability supported by the terminal includes one or more of the following: the ability of SRS corresponding to a specified number of antenna ports to achieve maximum transmission power; the ability of SRS corresponding to all SRS resources corresponding to a specified SRS transmission port switching pattern to achieve maximum transmission power; and the ability of SRS corresponding to SRS resources with a number of antenna ports less than the maximum number of transmission antennas supported by the terminal to achieve maximum transmission power. The maximum number of transmit antennas supported by the terminal includes one or more of the following: The terminal supports the maximum number of transmit antennas corresponding to one SRS. The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The number of transmit antennas supported by the terminal to reach the maximum transmit power corresponding to the terminal's power level. The number of transmit antennas supported by the terminal to reach the maximum transmit power indicated by the network device; The number of antennas that the terminal supports for full-power transmission. The terminal supports the number of antennas that can transmit at full power simultaneously. The number of transmit antennas that the terminal supports simultaneously transmitting at the maximum transmit power corresponding to the terminal's power level.
36. A device for determining the transmission power of a reference signal (SRS), characterized in that, include: A sending module is configured to send configuration information associated with one or more SRSs to a terminal, so that the terminal determines the transmission power of a target SRS based on the transmission capacity associated with one or more SRSs and / or the configuration information associated with one or more SRSs; the target SRS is one of the one or more SRSs. The configuration information includes information indicating the SRS transmission port switching pattern and / or information indicating the SRS transmission power determination method; The transmission capability includes one or more of the following: the power capability of SRS transmission supported by the terminal; the maximum number of transmit antennas supported by the terminal. Full-power transmission modes supported by the terminal; SRS transmission port switching patterns supported by the terminal; The SRS transmission power capability supported by the terminal includes one or more of the following: the ability of SRS corresponding to a specified number of antenna ports to achieve maximum transmission power; the ability of SRS corresponding to all SRS resources corresponding to a specified SRS transmission port switching pattern to achieve maximum transmission power; and the ability of SRS corresponding to SRS resources with a number of antenna ports less than the maximum number of transmission antennas supported by the terminal to achieve maximum transmission power. The maximum number of transmit antennas supported by the terminal includes one or more of the following: The terminal supports the maximum number of transmit antennas corresponding to one SRS. The number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The maximum value among the number of transmitting antennas corresponding to the SRS transmission port switching pattern supported by the terminal. The number of transmit antennas supported by the terminal to reach the maximum transmit power corresponding to the terminal's power level. The number of transmit antennas supported by the terminal to reach the maximum transmit power indicated by the network device; The number of antennas that the terminal supports for full-power transmission. The terminal supports the number of antennas that can transmit at full power simultaneously. The number of transmit antennas that the terminal supports simultaneously transmitting at the maximum transmit power corresponding to the terminal's power level.
37. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program that causes the processor to perform the method according to any one of claims 1 to 15, or to perform the method according to any one of claims 16 to 17.
Citation Information
Patent Citations
Power control method and device, and terminal
CN109565757A
Power indication method and device
CN110971317A
Use-cases and constraints on multiple SRS resource sets for antenna switching in NR rel-15
US20190356445A1