WO2022063102A1 - Procédé de commande de puissance, terminal, et dispositif côté réseau - Google Patents

Procédé de commande de puissance, terminal, et dispositif côté réseau Download PDF

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Publication number
WO2022063102A1
WO2022063102A1 PCT/CN2021/119519 CN2021119519W WO2022063102A1 WO 2022063102 A1 WO2022063102 A1 WO 2022063102A1 CN 2021119519 W CN2021119519 W CN 2021119519W WO 2022063102 A1 WO2022063102 A1 WO 2022063102A1
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WIPO (PCT)
Prior art keywords
information
terminal
power
target
srs
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PCT/CN2021/119519
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English (en)
Chinese (zh)
Inventor
王园园
邬华明
司晔
庄子荀
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维沃移动通信有限公司
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Publication of WO2022063102A1 publication Critical patent/WO2022063102A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365—Power headroom reporting

Definitions

  • the present application belongs to the technical field of wireless communication, and specifically relates to a power control method, a terminal and a network side device.
  • uplink power control of a terminal or user equipment includes an open-loop power control part, a closed-loop power control part, and other adjustment quantities.
  • the Sounding Reference Signal (SRS) used for positioning only supports open-loop power control, and the power control of SRS only considers configuration parameters and semi-static path loss estimation, but does not consider other factors. Therefore, the power of SRS Inaccurate control.
  • SRS Sounding Reference Signal
  • the embodiments of the present application provide a power control method, a terminal, and a network side device, which can solve the problem of inaccurate power control of the SRS.
  • a power control method comprising: a target entity receiving target information, wherein the target entity includes a local management function LMF entity or a location server, and the target information includes at least one of the following: a power surplus of a terminal power control information, the first power control information of the terminal, and the received power information of the first target SRS; the target entity determines and sends the second power control information of the terminal based on the target information; or, the target entity forwarding the target information to the serving cell and/or serving base station of the terminal, so that the serving cell and/or serving base station perform power control on the terminal based on the target information; wherein the first power control The information includes: the first power control parameter of the terminal and/or the first power dynamic adjustment parameter of the terminal; the second power control information includes: the second power control parameter of the terminal and/or the terminal The second power dynamic adjustment parameter.
  • a power control method including: a network-side device reporting target information of a terminal to an LMF entity or a location server; wherein the target information includes at least one of the following: a power headroom report of the terminal; The first power control information of the terminal, where the first power control information includes: first power control parameters and/or first power dynamic adjustment parameters of the terminal; and received power information of the first target SRS.
  • a power control method including: a terminal reporting target information of the terminal to an LMF entity or a location server, wherein the target information includes at least one of the following: a power headroom report of the terminal, a the first power control information of the terminal; and/or, the terminal receives the second power control information and/or the third power control information, and based on the second power control information and/or the third power control information, Adjusting the transmit power of the fourth target SRS, wherein the second power control information comes from the LMF entity or the location server, and the third power control information comes from the network side device; wherein the first power control information includes: the first power control parameter of the terminal and/or the first power dynamic adjustment parameter of the terminal; the second power control information includes: the second power control parameter of the terminal and/or the second power control parameter of the terminal Power dynamic adjustment parameters; the third power control information includes: third power control parameters of the terminal and/or third power dynamic adjustment parameters of the terminal.
  • a power control apparatus applied to an LMF entity or a location server, the apparatus includes: a first receiving module, configured to receive target information, wherein the target information includes at least one of the following: a power headroom report, the first power control information of the terminal, and the received power information of the first target SRS; a first sending module, configured to determine and send the second power control information of the terminal based on the target information; or , forwarding the target information to the serving cell and/or serving base station of the terminal, so that the serving cell and/or serving base station perform power control on the terminal based on the target information; wherein the first power The control information includes: the first power control parameter of the terminal and/or the first power dynamic adjustment parameter of the terminal; the second power control information includes: the second power control parameter of the terminal and/or the The second power of the terminal dynamically adjusts the parameter.
  • a power control apparatus applied to a network side device, the apparatus includes: a determining module for determining target information of a terminal; a second sending module for reporting the terminal's target information to an LMF entity or a location server target information; wherein the target information includes at least one of the following: a power headroom report of the terminal; first power control information of the terminal, where the first power control information includes: a first power control parameter and/ or the first power dynamic adjustment parameter of the terminal; and the received power information of the first target SRS.
  • a power control apparatus applied to a terminal, the apparatus includes: a third sending module, configured to report target information of the terminal to an LMF entity or a location server, wherein the target information includes the following At least one of: the power headroom report of the terminal, the first power control information of the terminal; and/or, a second receiving module, configured to receive the second power control information and/or the third power control information, and The transmit power of the fourth target SRS is adjusted based on the second power control information and/or the third power control information, wherein the second power control information is from the LMF entity or the location server, and the third power control The information comes from the network side device; wherein the first power control information includes: the first power control parameter of the terminal and/or the first power dynamic adjustment parameter of the terminal; the second power control information includes: the the second power control parameter of the terminal and/or the second power dynamic adjustment parameter of the terminal; the third power control information includes: the third power control parameter of the terminal and/or the third power of the terminal Dynamically adjust
  • a network side device in a seventh aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the first aspect or the second aspect when executed.
  • a terminal in an eighth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor.
  • a network side device in a ninth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the third aspect when executed.
  • a tenth aspect provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps as described in the first aspect are implemented.
  • a chip in an eleventh aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or instruction to implement the first aspect Or the method described in the second aspect, or the processor is configured to run a terminal program or instruction to implement the method described in the first aspect.
  • a twelfth aspect provides a computer program product comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When executed by the processor, the steps of the method according to the first aspect, or the steps of the method according to the third aspect, or the steps of the method according to the third aspect are realized.
  • the terminal or the network side device reports the target information of the terminal to the LMF entity or the location server, where the target information includes at least one of the following: a power headroom report, first power control information, and a first target SRS
  • the LMF entity or the location server performs power control on the second target SRS of the terminal based on the received target information, or forwards the received target information to the serving cell of the terminal, and the serving cell based on the target information Perform power control on the third target SRS of the terminal, thereby improving the accuracy of the power control of the SRS.
  • FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied
  • FIG. 2 shows a schematic flowchart of a power control method according to an embodiment of the present application
  • FIG. 3 shows another schematic flowchart of a power control method according to an embodiment of the present application
  • FIG. 4 shows another schematic flowchart of a power control method according to an embodiment of the present application
  • FIG. 5 shows another schematic flowchart of a power control method according to an embodiment of the present application
  • FIG. 6 shows another schematic flowchart of a power control method according to an embodiment of the present application
  • FIG. 7 shows another schematic flowchart of a power control method according to an embodiment of the present application.
  • FIG. 8 shows another schematic flowchart of a power control method according to an embodiment of the present application.
  • FIG. 9 shows another schematic flowchart of a power control method according to an embodiment of the present application.
  • FIG. 10 shows a schematic structural diagram of a power control apparatus according to an embodiment of the present application.
  • FIG. 11 shows another schematic structural diagram of a power control apparatus according to an embodiment of the present application.
  • FIG. 12 shows another schematic structural diagram of a power control apparatus according to an embodiment of the present application.
  • FIG. 13 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 14 shows a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application.
  • FIG. 15 shows a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • PDA Personal Digital Assistant
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of this application, only the NR system is used. The base station in the example is taken as an example, but the specific type of the base station is not limited.
  • the network side device and/or the terminal reports target information to a local management function (Location Management Function, LMF) entity or a location server, and the LMF entity or the location server performs power control on the target SRS based on the received target information , or, the LMF entity forwards the received target information to the serving cell and/or the serving base station of the terminal, and the serving cell and/or the serving base station performs power control on the target SRS of the terminal based on the target information.
  • LMF Local Management Function
  • the network side equipment includes: a serving cell and/or a serving base station of the terminal, and/or a neighboring cell and/or a neighboring cell base station of the terminal.
  • the serving base station is the base station that the terminal accesses or camps on, and the neighboring cell of the terminal may be the neighboring cell that participates in the positioning of the terminal, for example, the neighboring cell that receives the SRS sent by the terminal for positioning.
  • the SRS may be a positioning SRS, or may be another SRS used for positioning, which is not specifically limited in this embodiment of the present application.
  • FIG. 2 shows a schematic flowchart of a power control method in an embodiment of the present application, and the method 200 may be executed by a network side device.
  • the method can be executed by software or hardware installed on the network side device.
  • the method may include the following steps.
  • the network side device reports the target information of the terminal to the LMF entity or the location server.
  • the target information includes at least one of the following: a power headroom report (Power Headroom Report, PHR) of the terminal; first power control information of the terminal; and received power information of the first target SRS, wherein,
  • the first target SRS is an SRS sent by the terminal for positioning, and the first power control information may include a first power control parameter and/or a first power dynamic adjustment parameter.
  • the network side device may receive the first target SRS sent by the terminal, for example, the positioning SRS and/or other SRS used for positioning, and may determine according to the first target SRS The above target information of the terminal.
  • the serving cell and/or the serving base station of the terminal may acquire the received power information of the first target SRS and/or the first power control information of the first target SRS
  • the first power control information of the first target SRS may be determined according to the power headroom report of the terminal and/or the received power information of the first target SRS, etc., or may be the information configured for the first target SRS. first power control information.
  • the neighboring cell of the terminal and/or the base station of the neighboring cell may acquire the received power information for receiving the first target SRS.
  • the information carried in the power headroom report of the terminal may include at least one of the following (1) to (9).
  • Identification information of the terminal through the identification information, the LMF entity or the location server can be made aware of the terminal to which the reported power headroom report belongs.
  • Identification information of the first target SRS through the identification information, the LMF entity or the location server can be made aware of the SRS for or referred to by the reported power headroom report.
  • Direction information of the first target SRS for example, spatial relationship information, path loss reference information or transmit beam information of the first target SRS.
  • the power headroom (Power Headroom, PH) value of the terminal is the power headroom (Power Headroom, PH) value of the terminal.
  • First indication information wherein the first indication information indicates that the power headroom value is determined based on an actually transmitted signal or signaling, or the first indication information indicates that the power headroom value is Determined based on reference signals or signaling.
  • Second indication information wherein the second indication information is used to indicate whether the terminal supports power backoff.
  • the power headroom report of the terminal reported by the network side device to the LMF or the location server may include one or a combination of the foregoing information.
  • the power headroom report may include the power headroom of the terminal under one or more serving cells and the maximum transmit power under one or more serving cells, respectively.
  • other combinations may also be included, which are not specifically limited in the embodiments of the present application.
  • the power headroom and the maximum transmit power may be the power headroom and the maximum transmit power of the terminal in the primary cell, or the power headroom and the maximum transmit power may be combined with cell information (for example, the cell ID, which may be the serving cell ID). , the primary cell ID or the secondary cell ID) is reported to the LMF entity or the location server.
  • a serving cell carries the serving cell and/or cell identification information and reports the power headroom report information of the terminal to the LMF or the location server.
  • the power headroom report information of the terminal can optionally be the power headroom report under the serving cell, or the power headroom report after the UE considers one or more serving cells; in another embodiment, the UE Report the power headroom report and cell identification information under one or more serving cells respectively; it should be noted that the power headroom report under the serving cell can be understood as the maximum power supported under the serving cell, the remaining power value, Use reference or actual signal or signaling for power headroom calculation, etc.
  • the power headroom report after considering one or more serving cells can be understood as at least one of the following, only considering the report reported by the primary cell or one of the serving cells The power headroom, or the power headroom at the maximum transmit power of the UE considering multiple active serving cells and the total UE together.
  • the first power control parameter of the terminal includes at least one of the following:
  • identification information of the first target SRS wherein the identification information of the first target SRS may indicate the SRS corresponding to the first power control parameter
  • Direction information of the first target SRS for example, spatial relationship information, path loss reference information, or transmit beam information.
  • the first path loss value PL b,f,c (q d ), where the first path loss value may be obtained according to path loss reference information. That is, the UE measures the path loss reference signal configured for the first target SRS and/or obtains the path loss value obtained by acquiring the SSB used by the Mib.
  • the power headroom report is a power headroom report of the terminal in one or more serving cells; and/or the first power control information is a power headroom report of the terminal in one or more serving cells; The first power control parameter and/or the first power dynamic adjustment parameter of the serving cell.
  • the received power information of the first target SRS may be the received power information of the first target SRS sent by the network side device receiving the terminal.
  • the received power information may include at least one of the following (1) to (6).
  • Identification information of the first target SRS where the identification information of the first target SRS is used to indicate the SRS corresponding to the received power information.
  • Direction information of the first target SRS For example, spatial relationship information of the first target SRS, path loss reference information, transmit beam information, and the like.
  • the received power of the first target SRS For example, Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and Reference Signal Received Strength Indication (RSSI) of the first target SRS one or more of.
  • RSRP Reference Signal Received Power
  • RSSI Reference Signal Received Strength Indication
  • the quality parameter of the first target SRS For example, the Signal-to-Noise Ratio (SNR) of the first target SRS and/or the Signal-to-Noise and Interference Ratio (SINR) of the first target SRS.
  • SNR Signal-to-Noise Ratio
  • SINR Signal-to-Noise and Interference Ratio
  • Indication information indicating that the first target SRS is not successfully received That is, the indication information indicates that the network side device fails to successfully receive the first target SRS sent by the terminal.
  • the first power dynamic adjustment parameter may include at least one of the following:
  • identification information of the first target SRS may indicate the SRS corresponding to the first power dynamic adjustment parameter
  • direction information of the first target SRS (such as spatial relationship information, path loss reference information, transmit beam information);
  • the first target SRS corresponding to the first power dynamic adjustment parameter can be identified.
  • the network side device may include: a serving cell and/or a serving base station of the terminal and/or a neighboring cell and/or a neighboring cell base station of the terminal.
  • the terminal may send the first target SRS to the serving cell and/or the neighboring cell, and the serving cell and/or the serving base station and/or the neighboring cell and/or the neighboring cell base station receive the first target SRS After the target SRS, the target information of the terminal is reported to the LMF entity or the location server based on the condition of receiving the first target SRS.
  • the serving cell and/or the serving base station may report the power headroom report of the terminal, the first power control information of the first target SRS, and the serving cell or The received power information of the first target SRS of the serving base station, and the neighboring cell or neighboring cells and/or the neighboring cell base station may report the received power information of the first target SRS to the LMF entity or the location server according to the reception of the first target SRS.
  • the first power control parameter and/or the first power dynamic adjustment parameter in the first power control information may be the power control parameter and/or the power dynamic adjustment parameter of the first target SRS, or may also be the desired first target SRS Changed to the power control parameters and/or power dynamic adjustment parameters.
  • the target information may further include cell information of a serving cell of the terminal and/or cell information of a neighboring cell of the terminal, wherein the cell information may be cell identification information, so that the LMF The entity or the location server can know the cell where other information contained in the target information is located.
  • the other information includes but is not limited to: the power headroom report of the terminal; the first power control parameter of the terminal; and the second power dynamic adjustment parameter of the terminal.
  • the LMF entity or the location server may return the power control information of the terminal to the network side device after receiving the target information, that is, the LMF entity or the location server participates in the power control of the SRS. Therefore, after S210, the method may further include: receiving, by the network side device, second power control information of the terminal, where the second power control information includes: a second power control parameter and/or a second power Dynamically adjust parameters.
  • the network side device may also receive the second power control information of the terminal to determine the power configuration information configured for the terminal.
  • the network side The device receiving the second power control information of the terminal and the S210 may not have a necessary sequence relationship or connection relationship limitation.
  • the second power control parameter sent by the LMF or the location server may include at least one of the following: identification information of the UE, identification information of the second target SRS, and direction information of the second target SRS (such as spatial relationship information, path loss reference information, transmit beam information), power value P O_SRS,b,f,c (q s ) expected to receive the second target SRS; resource information M SRS,b,f,c of the second target SRS ( i); second power adjustment factor ⁇ SRS,b,f,c (q s ); second path loss value PL b,f,c (q d ); second path loss reference information; second power control state adjustment value.
  • the identification information of the second target SRS indicates the SRS controlled by the second power control parameter, and the second target SRS and the first target SRS may be the same or different, for example, the second target SRS may be the first target SRS
  • the subset of the SRS is not limited in specific embodiments of the present application.
  • the second power dynamic adjustment parameter sent by the LMF or the location server may include at least one of the following: identification information of the target UE, identification information of the second target SRS, direction information of the second target SRS (such as spatial relationship information, road loss reference information, transmit beam information), second power control adjustment state value, activation dynamic adjustment signaling, and deactivation dynamic adjustment signaling.
  • the LMF entity or the location server may, after receiving the received power information of the first target SRS sent by the neighboring cell and/or the neighboring cell base station of the terminal, send the information to the serving cell and/or the serving cell of the terminal.
  • the serving base station returns the received power information of the first target SRS, so that the serving cell and/or the serving base station can obtain the received power information of the first target SRS of the neighboring cell, and control the terminal to send the received power information to the neighboring cell according to the received power information.
  • the method may further include: receiving, by the network side device, the received power information of the first target SRS.
  • the network side device may use the second power control information as the reference power control information of the terminal , and perform power control on the third target SRS of the terminal. Therefore, in a possible implementation manner, the network-side device determines the third power control information of the terminal according to at least one of the following: the second power control information, the first power control information, the terminal and the received power information of the first target SRS.
  • the relevant information of the terminal may include at least one of the following: capability information of the terminal, maximum power information, scheduling information of the terminal on the time-frequency resource for sending the first target SRS (for example, the time whether other uplink signals or data of the terminal are simultaneously scheduled on the frequency resource, and/or whether the uplink signals or data of other terminals other than the terminal are simultaneously scheduled on the time-frequency resource), etc.
  • the network side device may determine the third power control information of the terminal according to the second power control information sent by the LMF entity or the location server, and may also determine that the third power control information or the second power control information is relative to the previous first power control information Whether the power control information has changed, if so, the determined third power control information can be sent to the terminal, or it can also be determined whether the terminal can support the second power control information sent by the LMF entity or the location server, if it can support , the second power control information sent by the LMF entity or the location server can be forwarded to the UE, and if it cannot be supported, the unsupportable indication information or the third power control information determined by the current network side device can be reported to the LMF entity or the location server.
  • the network-side device may determine the third power control information according to whether the second power control information can be supported by the terminal, such as whether the maximum capability is exceeded, or whether the configuration requirements are met.
  • the second power control information includes the second power control parameter, the third power control parameter does not meet the target of the second power control parameter, and the power adjustment is realized by the third power dynamic adjustment parameter.
  • the network side device may configure the second power control information according to the LMF and/or the first target
  • the received power information of the SRS determines the third power dynamic adjustment parameter of the terminal. For example, after the terminal is dynamically adjusted by the third power dynamic adjustment parameter, the received power of the first target SRS satisfies a certain threshold, or is equivalent to or similar to the result of the second power control information configured by the LMF.
  • the third power control information includes third power control parameters and/or third power dynamic adjustment parameters of the terminal.
  • the third power control parameter may include at least one of the following: the identification information of the UE, the identification information of the third target SRS, the direction information of the third target SRS (such as spatial relationship information, path loss reference information, transmission beam information), the power value P O_SRS,b,f,c (q s ) expected to receive the third target SRS; the resource information M SRS,b,f,c (i) of the third target SRS; the third power Adjustment factor ⁇ SRS,b,f,c (q s ); third path loss value PL b,f,c (q d ); third path loss reference information; third power control state adjustment value.
  • the identification information of the third target SRS indicates the SRS for which the third power control parameter is adjusted, and the third target SRS and the second target SRS may be the same or different, which are not limited in the specific embodiment of the present application.
  • the third power dynamic adjustment parameter may include at least one of the following: identification information of the target UE, identification information of the third target SRS, direction information of the third target SRS (such as spatial relationship information, path loss reference information, transmit beam information ), the third power control adjusts the state value, activates the dynamic adjustment signaling, and deactivates the dynamic adjustment signaling.
  • the network side device may further adjust the power information of the first target SRS sent to the neighboring cell according to the received power information of the first target SRS. For example, if the received power of the neighboring cell receiving the first target SRS directed to the cell is less than the threshold, adjust the power information of the first target SRS sent to the cell (eg, adjust the path loss reference or spatial relationship information, P0, etc.) , or remove the cell from the path loss reference or the spatial relationship pointing list, and preferentially point to other cells.
  • adjust the power information of the first target SRS sent to the cell eg, adjust the path loss reference or spatial relationship information, P0, etc.
  • the network side device may also use the received second power control information of the terminal as the third power control information of the terminal, and send the second power control information to the terminal.
  • the values of various parameter items in the first power control information, the second power control information and the third power control information may be the same or different, which are not specifically limited in this embodiment.
  • the identification information of the terminal in the first power control parameter, the second power control parameter and the third power control parameter may be the same, and the first target SRS, the second target SRS and the third target SRS may be the same, that is, The SRS identification information and the SRS direction information in the first power control parameter, the second power control parameter and the third power control parameter may be the same.
  • the parameter items included in the first power dynamic adjustment parameter, the second power dynamic adjustment parameter, and the third power dynamic adjustment parameter may be different.
  • the power dynamic adjustment parameter includes activation power dynamic adjustment.
  • Signaling indication information and in some cases the power dynamic adjustment parameter includes deactivation dynamic adjustment signaling indication information, which is not specifically limited in this embodiment.
  • the network-side device sending the third power control information of the terminal to the terminal may include:
  • the network side device sends a Downlink Control Information (Downlink Control Information, DCI) command to the terminal, wherein the DCI command carries the the third power dynamic adjustment parameter of the terminal; and/or,
  • DCI Downlink Control Information
  • the network side device sends a first medium access control layer (Medium Access Control, MAC) control element (Control Element, CE) command to the terminal , wherein the first MAC CE command carries the third power dynamic adjustment parameter; and/or,
  • Medium Access Control, MAC Medium Access Control
  • CE Control Element
  • the network side device sends a second MAC CE command or a radio resource control (Radio Control Command, RRC) command to the terminal, wherein the second The third power control parameter is carried in the MAC CE or the RRC command.
  • RRC Radio Control Command
  • the network side device may send the third power dynamic adjustment parameter by sending a DCI command to the terminal, or may also send the third power dynamic adjustment parameter by sending a first MAC CE command parameter.
  • the network side device may send the third power control parameter by sending a second MAC CE command to the terminal, or may also send the third power control parameter by using an RRC command.
  • the above-mentioned third power control information may be related to the third target SRS, that is, the power control information may not be used to control the transmission power of all SRSs (or all activated SRSs), but be used to control the transmission of the third target SRS power.
  • the third power dynamic adjustment parameter may be related to the third target SRS, indicating that the third power dynamic parameter is used to adjust the transmit power of the third target SRS, wherein the third target SRS may use the third power dynamic adjustment parameter
  • the identification information of the third target SRS is determined.
  • the identification information includes at least one of the following: SRS identification, Quantity, and SRS group ID.
  • the number refers to the number of SRSs sent by using the first power control information, the second power control information or the third power control information
  • the number of the third target SRS refers to the third power dynamic adjustment parameter Used to adjust the number of the third target SRS to be sent subsequently, for example, if the third target SRS is sent periodically, and if the number of the third target SRS is n, it indicates that the third power dynamic adjustment parameter is used for adjustment
  • the SRS may also be based on a certain sorting rule, and the number in the identification information may be the number of the first target SRS (or the second target SRS, or the third target SRS) adjusted for activation or deactivation.
  • the SRS grouping identifier may be a group identifier or a group number, that is, indicating that the first power dynamic adjustment parameter or the second power dynamic adjustment parameter or the third power dynamic adjustment parameter is used to adjust a group of SRSs corresponding to the group identifier or group number
  • the power of the SRS, wherein the grouping method of the SRS includes but is not limited to: grouping according to the activation state, grouping according to the spatial relationship, path loss reference information, or signal set (perset), and the like.
  • the identification information of the third target SRS may also be bits of length N, where N is a submultiple of the number of the third target SRS, for example, assuming that the number of the third target SRS is 6, then N It can be 1, 2, 3 and 6, that is, 1 bit among the N bits can indicate one or more third target SRSs.
  • the third target SRS is not limited to the corresponding SRS resource (resource) or SRS positioning resource (PosResource), or the SRS resource set (resourceset) and the SRS positioning resource set (PosResourceset), when the SRS resource (resource) is included ) and SRS positioning resource (PosResource), the indication information of the target SRS may also be used to indicate whether the power dynamic adjustment parameter is used for the SRS resource or the target SRS corresponding to the SRS PosResource.
  • the network side device may perform S210 after receiving the request. Therefore, in this possible implementation manner, before S210, the method may further include: the network side device receives target information request information, wherein the target information request information is used to request the target information of the terminal. Wherein, the target information request may be sent by the LMF entity or the location server. Through this possible implementation, the LMF entity or the location server can send target information request information to the network-side device and request the network-side device to report the target information.
  • the terminal may also report its capability information. Therefore, in this possible implementation manner, before the network side device reports the target information of the terminal to the local management function LMF entity or the location server, The method further includes: receiving, by the network side device, terminal capability information reported by the terminal, wherein the terminal capability information includes at least one of the following: whether the terminal supports reporting a power headroom report to an LMF entity or a location server , whether the terminal supports closed-loop power control for positioning SRS, and whether the terminal receives power control information sent by the LMF entity or the location server.
  • the terminal may report the terminal capability information to the serving cell and/or the serving base station before or after receiving the target SRS configuration, and at the same time, the terminal may also report the terminal capability information to the LMF entity or the location server.
  • the network-side device can learn whether the terminal supports reporting power headroom reports to the LMF entity or the location server, whether it supports SRS closed-loop power control, and/or whether to receive power control information sent by the LMF entity or the location server. , so that the power control mode of the SRS of the terminal can be determined.
  • the network side device can send the closed-loop power control part, such as the power control adjustment value, to the terminal, for example, send the power dynamic adjustment parameter to the terminal.
  • the network side device reports the target information of the terminal to the LMF entity or the location server, where the target information includes at least one of the following: a power headroom report, a power control parameter, a power dynamic adjustment parameter, and The received power information of the first target SRS, so that the LMF entity or the location server can learn the power-related information of the terminal.
  • the neighboring cell of the terminal may also report the received power information of the first target SRS of the terminal to the LMF entity or the location server, thereby supporting power control based on neighboring cell measurement; in addition, the reported target information can include the direction information of the first target SRS, so that different power control can be implemented for SRSs in different directions. Therefore, by using the technical solutions provided by the embodiments of the present application, the accuracy of the power control of the SRS is improved.
  • the signaling between the serving cell gNB and the location server (or the LMF entity) includes but is not limited to one of the following:
  • LTE Positioning Protocol Annex, LPPa Long Term Evolution Positioning Protocol
  • NRPPa New Radio Positioning Additional Protocol
  • the location server indicates the adjacent TRP or the gNB associated with the adjacent TRP through LPPa, and the adjacent TRP or the gNB associated with the adjacent TRP sends the PRS configuration of the adjacent TRP to the gNB through the Xn interface; or, the location server sends the PRS of the adjacent TRP through the core network interface.
  • the configuration is sent to the serving gNB or the location server where the UE is located, and then sent to the serving gNB through LPPa signaling.
  • the signaling between the serving cell and/or the serving base station and the terminal includes but is not limited to one of the following:
  • RRC Radio Resource Control
  • FIG. 3 shows another schematic flowchart of a power control method in an embodiment of the present application, and the method 300 may be executed by a terminal.
  • the method may be performed by software or hardware installed on the terminal.
  • the method may include the following steps S310 and/or S312.
  • the terminal reports the target information of the terminal to the LMF entity or the location server, where the target information includes at least one of the following: a power headroom report of the terminal, and first power control information of the terminal, wherein the The first power control information includes a first power control parameter of the terminal and a second power dynamic adjustment parameter of the terminal.
  • the parameter items included in the power headroom report and the first power control information are the same as those in the method 200. For details, refer to the description in the method 200, and details are not repeated here.
  • the terminal may report the target information of the terminal to the LMF entity or the location server after or before reporting the PHR to the serving cell, or after or before receiving the power adjustment of the serving cell.
  • the terminal may execute S310 after receiving the request sent by the LMF entity or the location server. Therefore, in this possible implementation manner, before S310, the method may further include: receiving, by the terminal, target information request information, where the target information request information is used to request the target information of the terminal.
  • the target information request may be sent by the LMF entity or the location server.
  • the LMF entity or the location server can send target information request information to the terminal to request the terminal to report the target information when the received measurement result of the neighboring cell does not meet expectations or the positioning result does not meet expectations.
  • the terminal receives the second power control information and/or the third power control information, and adjusts the transmit power of the fourth target SRS based on the second power control information and/or the third power control information, wherein the The second power control information comes from the LMF entity or the location server, and the third power control information comes from the network side device.
  • the second power control information includes: the second power control parameter of the terminal and/or the second power dynamic adjustment parameter of the terminal;
  • the third power control information includes: the third power of the terminal control parameters and/or third power dynamic adjustment parameters of the terminal.
  • the LMF entity or the location server may send the second power control information to the terminal based on the target information after receiving the target information reported by the terminal.
  • the specific implementation manner for the network side device to send the third power control information to the terminal may be sent by the method 200 in which the network side device sends the third power control information.
  • the method 200 in which the network side device sends the third power control information.
  • the second power control information and the third power control information are the same as the second power control information and the third power control information in the method 200 , for details, please refer to the relevant description in the method 200 .
  • the terminal may adjust the transmit power of the fourth target SRS according to the received second power control information. Therefore, in this possible implementation manner, adjusting the transmit power of the fourth target SRS by the terminal may include: the terminal determining the second power according to the identification information of the second target SRS included in the second power control information the fourth target SRS adjusted by the control information, and adjust the transmit power of the fourth target SRS according to the second power control information.
  • the fourth target SRS is the second target SRS, and the terminal may determine the fourth target SRS according to the identification information of the second target SRS included in the second control information.
  • the terminal may determine that the SRS indicated by the identification information of the second target SRS in the second power control parameter is the fourth target SRS, and use the second power control parameter according to the second power control parameter. Adjust the transmit power of the fourth target SRS; or, if the second power control information includes the second power dynamic adjustment parameter, the terminal may determine that the SRS indicated by the identification information of the second target SRS in the second power dynamic adjustment parameter is the first Four target SRSs, and adjust the transmit power of the fourth target SRS according to the second power dynamic adjustment parameter.
  • the terminal may adjust the transmit power of the fourth target SRS according to the received third power control information. Therefore, in this possible implementation manner, adjusting the transmit power of the fourth target SRS by the terminal may include: the terminal determining the third power according to the identification information of the third target SRS included in the third power control information the fourth target SRS adjusted by the control information, and adjust the transmit power of the fourth target SRS according to the third power control information.
  • the fourth target SRS is the third target SRS, and the terminal may determine the fourth target SRS according to the identification information of the third target SRS included in the third control information.
  • the terminal may determine that the SRS indicated by the identification information of the third target SRS in the third power control parameter is the fourth target SRS, and according to the third power control parameter Adjust the transmit power of the fourth target SRS; or, if the third power control information includes a third power dynamic adjustment parameter, the terminal may determine that the SRS indicated by the identification information of the third target SRS in the third power dynamic adjustment parameter is the third power dynamic adjustment parameter.
  • the terminal may determine that the SRS indicated by the identification information of the third target SRS in the third power dynamic adjustment parameter is the third power dynamic adjustment parameter.
  • the terminal may jointly adjust the transmit power of the fourth target SRS according to the second power control information and the third power control information. Therefore, in this possible implementation manner, adjusting the transmit power of the fourth target SRS by the terminal may include: the terminal according to the identification information of the second target SRS included in the second power control information, and the third The identification information of the third target SRS included in the control information determines the fourth target SRS, and adjusts the transmit power of the fourth target SRS according to the second power control information and the third power control information.
  • the fourth target SRS may be the union of the second target SRS and the third target SRS, or may also be the intersection of the second target SRS and the third target SRS, specifically in the embodiment of the present application Not limited.
  • the received second power control information includes a second power control parameter and the received third power control information includes a third power dynamic adjustment parameter. Then, closed-loop power control may be performed on the fourth target SRS according to the second power control parameter, and dynamic power adjustment may be performed on the fourth target SRS according to the third power dynamic adjustment parameter.
  • the identification information includes at least one of the following: SRS identifier, quantity, and SRS group identifier.
  • SRS identifier For the specific meaning, please refer to the description in the method 200 .
  • the identification information of the second target SRS is bits with a length of M, where M is a submultiple of the number of the second target SRS; and/or, the third target The identification information of the SRS is a length of N bits, where N is a divisor of the number of the third target SRS.
  • M is a submultiple of the number of the second target SRS
  • N is a divisor of the number of the third target SRS.
  • the identification information of the second target SRS is similar to the identification information of the third target SRS, and will not be repeated here.
  • the LMF entity or the location server may send the second power dynamic adjustment parameter through an LTE Positioning Protocol (LTE Positioning Protocol, LPP) command.
  • LTE Positioning Protocol LTE Positioning Protocol, LPP
  • the method before the terminal reports the target information of the terminal to the LMF entity or the location server, the method further includes: the terminal reports to the LMF entity or the location server or the serving cell and/or the serving base station Reporting terminal capability information, wherein the terminal capability information includes at least one of the following: whether the terminal supports reporting of power headroom reports to the LMF entity or the location server, whether the terminal supports closed-loop power control of SRS, and whether the terminal supports Whether to receive power control information sent by the LMF entity or the location server. For example, before or after receiving the SRS configuration, the terminal reports the terminal capability information to the LMF entity or the location server or the serving cell and/or the serving base station. Therefore, the LMF entity or the location server or the serving cell and/or the serving base station can learn the terminal capability information.
  • the signaling between the location server (or the LMF entity) and the UE includes but is not limited to one of the following:
  • FIG. 4 shows a schematic flowchart of a power control method in an embodiment of the present application, and the method 400 may be executed by a target entity.
  • the method may be performed by software or hardware installed on the target entity.
  • the target entity may include an LMF entity or a location server.
  • the method may include the following steps.
  • the target entity receives target information, where the target information includes at least one of the following: a power headroom report of the terminal, a power control parameter of the terminal, and first power control information of the terminal and a first Received power information of the target SRS.
  • the first target SRS may be an SRS sent by the terminal for positioning.
  • the first power control information includes first power control parameters and/or first power dynamic adjustment parameters.
  • the target information received by the target entity may be the target information reported by the network side device according to S210 in FIG. 2 , and/or may also be the target information reported by the terminal according to S310 in FIG. 3 ,
  • the target information received by the target entity may be the target information reported by the network side device according to S210 in FIG. 2 , and/or may also be the target information reported by the terminal according to S310 in FIG. 3 .
  • the specific reporting manner reference may be made to the descriptions in the foregoing methods 200 and 300, and details are not repeated here.
  • the target entity receives target information of the terminal, including at least one of the following (1) to (3).
  • the target entity receives the target information sent by the terminal, where the target information sent by the terminal may include at least one of the following: a power headroom report of the terminal, a first power of the terminal control information.
  • the target entity receives the target information sent by the serving cell and/or the serving base station of the terminal, and the target information sent by the serving cell and/or the serving base station may be at least one of the following: a power headroom report of the terminal, The first power control information of the terminal and the received power information of the first target SRS.
  • the target entity receives the target information sent by the neighboring cell and/or the neighboring cell base station of the terminal.
  • the target information sent by the neighbor cell and/or the neighbor cell base station may include the received power information of the first target SRS.
  • the target entity determines and sends the second power control information of the terminal based on the target information.
  • the second power control information includes: second power control parameters of the terminal and/or second power dynamic adjustment parameters of the terminal.
  • the second power control information is the same as the second power control information in the method 200 and the method 300.
  • the relevant description in the method 200 and the method 300 please refer to the relevant description in the method 200 and the method 300, and details are not repeated here.
  • the target entity may send the second power control information to the terminal, and the terminal may perform power control on the second target SRS according to the second power control information.
  • the target entity may also send the second power control information to the serving cell and/or serving base station of the terminal, and the serving cell and/or the serving base station perform power control on the terminal, for example, serving
  • the cell and/or the serving base station uses the method of sending the third control information in the method 200 to control the terminal, for details, please refer to the relevant description in the method 200 .
  • the terminal may perform power adjustment according to the description in the method 300 .
  • the description in the method 300 which will not be repeated here.
  • the LMF entity or the location server can obtain the target information of the terminal, thereby participating in the power control of the target SRS and improving the accuracy of the power control of the target SRS.
  • FIG. 5 shows another schematic flowchart of a power control method according to an embodiment of the present application, and the method 500 may be executed by a target entity.
  • the method may be performed by software or hardware installed on the target entity.
  • the target entity may include an LMF entity or a location server.
  • the method may include the following steps.
  • the target entity receives target information, where the target information includes at least one of the following: a power headroom report of the terminal, a power control parameter of the terminal, and first power control information of the terminal and a first Received power information of the target SRS.
  • the target entity forwards the target information to a serving cell and/or a serving base station of the terminal, so that the serving cell and/or the serving base station perform power control on the terminal based on the target information.
  • the target information forwarded by the target entity may be received power information of the first target SRS received by the target entity from a neighboring cell and/or a neighboring cell base station of the terminal.
  • the network side device can adjust the power information of the first target SRS sent to the neighboring cell according to the received power information of the first target SRS, for example, if the received power of the neighboring cell to receive the first target SRS directed to the cell is less than threshold, then adjust the power information of the first target SRS sent to the cell (for example, adjust the path loss reference or spatial relationship information, P0, etc.), or remove the path loss reference or spatial relationship pointing list from the cell, and preferentially point to other community.
  • the target entity may also send the second power control information determined based on the target information to the network-side device, and the network-side device may, according to the second power control information and the first power control information Receive power information of a target SRS, determine the third power dynamic adjustment parameter of the terminal, for example, after the terminal is dynamically adjusted by the third power dynamic adjustment parameter, the received power of the first target SRS satisfies a certain threshold, or The result of the second power control information that is effective or similar to the LMF configuration.
  • the terminal or the network side device reports the target information of the terminal to the LMF entity or the location server, where the target information includes at least one of the following: power headroom report, first power control information, and received power information of the first target SRS, the LMF entity Or the location server forwards the received target information to the serving cell of the terminal, and the serving cell performs power control on the third target SRS of the terminal based on the target information, thereby improving the accuracy of the power control of the SRS.
  • FIG. 6 shows another schematic flowchart of a power control method according to an embodiment of the present application.
  • the method 600 may be performed by a neighboring cell (ie, neighboring cell and/or neighboring cell base station), serving cell (ie, serving cell and/or serving cell and/or serving cell) of the UE. base station), UE, and LMF entity or location server.
  • the method may include the following steps.
  • the serving cell and the UE perform power configuration.
  • the serving cell may configure the power configuration for the UE to send the target SRS for uplink positioning.
  • the UE sends the target SRS to the serving cell.
  • the UE sends the target SRS to the neighboring cell.
  • the UE may send the target SRS to the serving cell and neighboring cells according to the power configuration in S601.
  • S602 and S603 have no specific sequence.
  • the UE reports the PHR to the serving cell.
  • the UE may use a single entry (single entry) PHR MAC CE to report the PHR, or a multiple entry (multiple entry) PHR MAC CE, wherein the single entity PHR MAC CE may include the power headroom of the cell and the maximum transmission of the cell. power, and the multi-entity PHR MAC CE can include the following reporting content:
  • the neighbor cell receives the target SRS, and obtains the received power information of the target SRS, for example, RSRP.
  • the serving cell performs power adjustment according to the received target SRS and PHR.
  • S605 and S606 have no specific sequence.
  • the serving cell reports the target information of the UE to the LMF entity or the location server.
  • the reporting target information includes one of the following 1 to 3.
  • PHR Power Headroom Report
  • the PHR may carry at least one of the following: identification information of the UE, identification information of the target SRS, direction information of the target SRS (such as spatial relationship information, path loss reference information), the target SRS The grouping information of the cell power headroom (PH), the maximum transmit power of the cell (PCMAX, f, c), whether the PH value is based on the actual transmitted signal or signaling or based on the reference signal or signaling, whether power backoff is supported, And the power backoff parameter of the UE.
  • the first power control parameter includes at least one of the following: identification information of the UE, identification information of the first target SRS, direction information of the first target SRS (such as spatial relationship information, path loss reference information), the first P O_SRS,b,f,c (q s ), the first M SRS,b,f,c (i), the first ⁇ SRS,b,f,c (q s ), and the first PL b,f,c (q d ).
  • the first dynamic power adjustment parameter includes at least one of the following: identification information of the UE, identification information of the first target SRS, direction information of the first target SRS (such as spatial relationship information, path loss Reference Information), the first power control adjustment state value, and the activation/deactivation dynamic adjustment signaling.
  • the neighbor cell reports the target information of the UE to the LMF entity or the location server.
  • the target information reported by the neighbor cells may include: received power information of the first target SRS.
  • the received power information includes at least one of the following: identification information of the UE, identification information of the first target SRS, direction information of the first target SRS (such as spatial relationship information, path loss reference information, transmit beam information), the received power (RSRP, RSRQ or RSRI) of the first target SRS, the SNR or SINR of the first target SRS, and the indication information that the first target SRS is not successfully received.
  • this step is an optional step.
  • S607 and S608 have no specific sequence.
  • the LMF entity or the location server adjusts the power control information according to the received target information.
  • the LMF entity or the location server sends the second power control information to the serving cell, and notifies the serving cell to adjust the corresponding power parameter.
  • the second power control information sent by the LMF entity or the location server to the serving cell may include at least one of the following 1 and 2.
  • the second power control parameter includes at least one of the following: the identification information of the UE, the identification information of the second target SRS, the direction information of the second target SRS (such as spatial relationship information, path loss reference information) , the second P O_SRS,b,f,c (q s ), the second M SRS,b,f,c (i), the second ⁇ SRS,b,f,c (q s ), and the second PL b ,f,c (q d ).
  • the second power dynamic adjustment parameter includes at least one of the following: the identification information of the UE, the identification information of the second target SRS, the direction information of the second target SRS (such as spatial relationship information, path loss Reference information), second power control adjustment state value, activation/deactivation of dynamic adjustment signaling.
  • the serving cell determines the third power control information of the UE according to at least one of the following: the second power control information sent by the LMF entity or the location server, the first power control information, the related information of the terminal, and the received power information of the first target SRS.
  • the third power control information of the UE may include at least one of the following 1 and 2.
  • the third power control parameter includes at least one of the following: the identification information of the UE, the identification information of the third target SRS, the direction information of the third target SRS (such as spatial relationship information, path loss reference information) , the third P O_SRS,b,f,c (q s ), the third M SRS,b,f,c (i), the third ⁇ SRS,b,f,c (q s ), the third PL b, f,c (q d ).
  • the third dynamic power adjustment parameter may be sent through a DCI command or a MAC CE, wherein the DCI command or the MAC CE carries the third dynamic power adjustment parameter.
  • the serving cell sends third power control information to the terminal, adjusts the power parameter of the UE, and notifies the UE to adjust the corresponding power parameter.
  • the third power control signal is related to a specific third target SRS, that is, it is not used to adjust all transmitted SRSs (or all activated SRSs), but to adjust a designated SRS (ie, the third target SRS).
  • the optional designated SRS may be indicated by the identification information of the third target SRS, for example, the identification information may be:
  • the group identifier of the third target SRS, and the power of the SRS of each group is adjusted according to the group identifier or the group number indication.
  • the identification information of the third target SRS may also be an N-bit bit, where 1 bit indicates to adjust the power of the corresponding third target SRS, and N is a divisor of the SRS resource or PosResource of the third target SRS.
  • S613 The UE performs power adjustment according to the third power control information sent by the serving cell.
  • the UE sends the third target SRS to the serving cell according to the adjusted power.
  • the UE sends the third target SRS to the neighboring cell according to the adjusted power.
  • the power control method provided by the embodiment of the present application can support the adjustment of closed-loop power control based on the maximum power and power allocation of the UE and the reception conditions of neighboring cells, and the LMF entity or the location server participates in the power control.
  • FIG. 7 shows another schematic flowchart of a power control method according to an embodiment of the present application.
  • the method 700 may be performed by a neighboring cell (ie, neighboring cell and/or neighboring cell base station), serving cell (ie, serving cell and/or serving cell and/or serving cell) of the UE. base station), UE, and LMF entity or location server.
  • the UE reports target information to the LMF entity or the location server.
  • the method may include the following steps.
  • S701-S706 are the same as S601-S606 in the method 600 .
  • the UE reports the target information to the LMF entity or the location server.
  • the target information reported by the UE includes at least one of the following information in 1 and 2:
  • the PHR carries at least one of the following: identification information of the target UE, identification information of the target SRS, direction information of the target SRS (such as spatial relationship information, path loss reference information), the target SRS
  • the grouping information the cell power headroom (PH), the maximum transmit power of the cell (P CMAX,f,c ), the PH value is based on the reference signal or signaling, whether the power backoff is supported, and the power backoff parameters of the UE.
  • the PH and P CMAX,f can be the PH and the maximum power of the UE under Pscell; or, the PH and P CMAX,f can be reported in combination with cell information (eg, cell ID, serving cell ID, Pcell ID, Spcell ID ID).
  • the power control parameter may be the first power control parameter after power adjustment is performed by the serving cell according to the received first target SRS and PHR.
  • the parameter items included in the first power control parameter are the same as the first power control parameter in the method 600, and details are not described herein again.
  • the LMF entity or the location server performs power adjustment according to the received target information.
  • the target information includes target information reported by neighboring cells, serving cells and/or UEs.
  • the LMF entity or the location server may send second power control information to the UE, where the second power control information sent by the LMF entity or the location server may include:
  • the LMF entity or the location server sends the second power control information to the UE, notifying the UE to adjust the corresponding power parameter.
  • the LMF entity or the location server may send the second power control information through an LPP command.
  • the second power control information is related to a specific second target SRS, that is, it is not used to adjust the transmission power of all target SRSs (or all activated target SRSs), but to adjust the transmission power of the specified second target SRS .
  • the second target SRS may be indicated by the identification information to indicate which SRS power is to be adjusted specifically, for example, the identifier of the second target SRS and/or the number of the second target SRS may be indicated; or, the second target SRS may be indicated
  • the power of the SRS of each group is adjusted according to the group identifier or the group number indication.
  • the power of the corresponding second target SRS may also be adjusted through a bit indication, where the length of the bit is: M, where M is a divisor of the number of the second target SRS.
  • FIG. 8 shows another schematic flowchart of a power control method according to an embodiment of the present application.
  • the method 800 may be performed by a neighboring cell of the UE (ie, neighboring cell and/or neighboring cell base station), a serving cell (ie, serving cell and/or serving cell and/or serving cell). base station), UE, and LMF entity or location server.
  • the UE, the serving cell and the neighboring cells report target information to the LMF entity or the location server, and the LMF entity or the location server sends the power control information of the UE to the serving cell.
  • the method may include the following steps.
  • the LMF entity or the location server sends the TX FG power control information to the serving cell, and notifies the serving cell to adjust the corresponding power parameters.
  • FIG. 9 shows another schematic flowchart of a power control method according to an embodiment of the present application.
  • the method 900 may be performed by a neighboring cell (ie, neighboring cell and/or neighboring cell base station), serving cell (ie, serving cell and/or serving cell and/or serving cell) of the UE. base station), UE, and LMF entity or location server.
  • the serving cell and neighboring cells report target information to the LMF entity or the location server, and the LMF entity or the location server sends the UE's power control information to the UE.
  • the method may include the following steps.
  • the LMF entity or the location server sends the second power control information of the UE to the UE, and notifies the UE to adjust the corresponding power parameter.
  • the serving cell and neighboring cells can also report the target information to the LMF entity or the location server, the LMF entity or the location server sends the UE power control information to the UE and the serving cell, and the serving cell sends the power control information to the UE and the serving cell according to the received power control information.
  • the UE sends power control information.
  • examples are not described one by one.
  • the execution body may be a power control device, or a control module in the power control device for executing the power control method.
  • the power control device provided by the embodiment of the present application is described by taking the power control method performed by the power control device as an example.
  • FIG. 10 shows a schematic structural diagram of a power control apparatus according to an embodiment of the present application, which is applied to an LMF entity or a location server.
  • the apparatus 1000 mainly includes: a first receiving module 1001 and a first sending module 1002 .
  • the first receiving module 1001 is configured to receive target information, where the target information includes at least one of the following: a power headroom report of the terminal, first power control information of the terminal, and first power control information of the terminal.
  • the first sending module 1002 is configured to determine and send the second power control information of the terminal based on the target information; or, forward the target information to the serving cell of the terminal and/or a serving base station, so that the serving cell and/or the serving base station perform power control on the terminal based on the target information;
  • the first power control information includes: a first power control parameter of the terminal and/or The first power dynamic adjustment parameter of the terminal;
  • the second power control information includes: the second power control parameter of the terminal and/or the second power dynamic adjustment parameter of the terminal.
  • the sending, by the target entity, the second power control information of the terminal includes: the target entity sending the second power control information to a serving cell and/or a serving base station of the terminal; and /or, the target entity sends the second power control information to the terminal.
  • the first receiving module 1001 receives the target information, including at least one of the following:
  • the target entity receives the target information sent by the neighboring cell and/or the neighboring cell base station of the terminal.
  • the first sending module forwards the target information to the serving cell and/or serving base station of the terminal, including: sending the target information sent by the neighboring cell and/or the neighboring cell base station The information is forwarded to the serving cell and/or serving base station.
  • the first receiving module is further configured to receive terminal capability information reported by the terminal, where the terminal capability information includes at least one of the following: whether the terminal supports sending to the LMF entity or location The server reports a power headroom report, whether the terminal supports closed-loop power control of SRS, and whether the terminal receives power control information sent by the LMF entity or the location server.
  • the first sending module 1002 is further configured to send target information request information, where the target information request information is used to request the target information.
  • the information carried in the power headroom report of the terminal includes at least one of the following:
  • the first indication information indicates that the power headroom value is determined based on an actually transmitted signal or signaling, or the first indication information indicates that the power headroom value is based on a reference signal or determined by signaling;
  • the second indication information is used to indicate whether the terminal supports power backoff
  • the power backoff parameter of the terminal is the power backoff parameter of the terminal.
  • the first power control parameter includes at least one of the following:
  • the first path loss reference information The first path loss reference information
  • the first power control state adjustment value The first power control state adjustment value.
  • the second power control parameter includes at least one of the following:
  • Identification information of the second target SRS wherein the identification information of the second target SRS indicates the SRS for which the second power control parameter is adjusted;
  • the second power control state adjustment value is the second power control state adjustment value.
  • the first power dynamic adjustment parameter includes at least one of the following:
  • the second power dynamic adjustment parameter includes at least one of the following:
  • Identification information of the second target SRS wherein the identification information of the second target SRS indicates the SRS adjusted by the second power dynamic adjustment parameter
  • the second power control adjusts the state value
  • the received power information of the first target SRS includes at least one of the following:
  • Indication information indicating that the first target SRS is not successfully received.
  • the power control device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in an LMF entity or a location server.
  • the power control device in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the power control apparatus provided in this embodiment of the present application can implement each process implemented by the LMF entity or the location server in the method embodiments of FIG. 2 to FIG. 9 , and achieve the same technical effect, which is not repeated here to avoid repetition.
  • FIG. 11 shows another schematic structural diagram of an apparatus for power control provided by an embodiment of the present application, and the apparatus 1100 may be applied to a network side device.
  • the apparatus 1100 mainly includes: a determining module 1101 and a second sending module 1102 .
  • the determining module 1101 is configured to determine the target information of the terminal; the second sending module 1102 is configured to report the target information of the terminal to the LMF entity or the location server; wherein the target information includes at least the following: One: the power headroom report of the terminal; the first power control information of the terminal, where the first power control information includes: a first power control parameter and/or a first power dynamic adjustment parameter of the terminal; and the received power information of the first target SRS.
  • the information carried in the power headroom report of the terminal includes at least one of the following:
  • the information carried in the power headroom report of the terminal includes at least one of the following:
  • the first indication information indicates that the power headroom value is determined based on an actually transmitted signal or signaling, or the first indication information indicates that the power headroom value is based on a reference signal or determined by signaling;
  • the second indication information is used to indicate whether the terminal supports power backoff
  • the power backoff parameter of the terminal is the power backoff parameter of the terminal.
  • the first power control parameter includes at least one of the following:
  • the first path loss reference information The first path loss reference information
  • the first power control state adjustment value The first power control state adjustment value.
  • the received power information of the first target SRS includes at least one of the following:
  • Indication information indicating that the first target SRS is not successfully received.
  • the first power dynamic adjustment parameter includes at least one of the following:
  • the power headroom report is a power headroom report of the terminal in one or more serving cells; and/or the first power control information is a power headroom report of the terminal in one or more serving cells; first power control parameters and/or first power dynamic adjustment parameters of each serving cell.
  • the network side device includes: a serving cell and/or a serving base station of the terminal, and/or a neighboring cell and/or a neighboring cell base station of the terminal.
  • the target information further includes: cell information of a serving cell of the terminal, and/or cell information of a neighboring cell of the terminal.
  • a receiving module is also included for at least one of the following:
  • the second power control information includes: a second power control parameter and/or a second power dynamic adjustment parameter
  • the second sending module 1102 is further configured to send the third power control information of the terminal to the terminal according to the second power control information;
  • the determining module 1101 is further configured to send the third power control information of the terminal to the terminal according to the second power control information;
  • At least one of the following determines the third power control information of the terminal: the second power control information, the first power control information, the related information of the terminal, and the received power information of the first target SRS, wherein , the relevant information of the terminal includes at least one of the following: capability information of the terminal, maximum power information of the terminal, and scheduling information of the terminal on the time-frequency resource for sending the first target SRS.
  • the second sending module 1102 sends the third power control information of the terminal to the terminal, including:
  • the third power control information includes a third power dynamic adjustment parameter, sending a downlink control information DCI command to the terminal, wherein the DCI command carries the third power dynamic adjustment parameter of the terminal; and / or,
  • the third power control information includes a third power dynamic adjustment parameter, send a first medium access control layer control unit MAC CE command to the terminal, where the first MAC CE command carries the first MAC CE command.
  • the third power control information includes a third power control parameter
  • the third power dynamic adjustment parameter includes at least one of the following:
  • identification information of the third target SRS where the identification information of the third target SRS indicates the SRS adjusted by the third power control information
  • the third power control adjusts the state value
  • the identification information includes at least one of the following: SRS identifier, quantity, and SRS group identifier.
  • the identification information of the third target SRS is a length of N bits, where N is a submultiple of the number of the third target SRS.
  • the method further includes: a third receiving module, configured to receive terminal capability information reported by the terminal, wherein the terminal capability information includes at least one of the following: whether the terminal supports sending to the LMF entity Or the location server reports a power headroom report, whether the terminal supports SRS closed-loop power control, and whether the terminal receives power control information sent by the LMF entity or the location server.
  • the terminal capability information includes at least one of the following: whether the terminal supports sending to the LMF entity Or the location server reports a power headroom report, whether the terminal supports SRS closed-loop power control, and whether the terminal receives power control information sent by the LMF entity or the location server.
  • the method further includes: a fourth receiving module, configured to receive target information request information, wherein the target information request information is used to request the target information of the terminal.
  • the power control apparatus provided in the embodiments of the present application can implement each process implemented on the network side in the method embodiments shown in FIG. 2 to FIG. 9 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • FIG. 12 shows another schematic structural diagram of a power control apparatus provided by an embodiment of the present application, and the apparatus 1200 may be applied to a terminal.
  • the apparatus 1200 may include: a third sending module 1201 and/or a second receiving module 1202 .
  • the third sending module 1201 is configured to report the target information of the terminal to the LMF entity or the location server, where the target information includes at least one of the following: a power headroom report of the terminal, a the first power control information of the terminal;
  • the second receiving module 1202 is configured to receive the second power control information and/or the third power control information, and based on the second power control information and/or the third power control information , adjust the transmit power of the fourth target SRS, wherein the second power control information comes from the LMF entity or the location server, and the third power control information comes from the network side device;
  • the first power control information includes : the first power control parameter of the terminal and/or the first power dynamic adjustment parameter of the terminal;
  • the second power control information includes: the second power control parameter of the terminal and/or the first power control parameter of the terminal Two power dynamic adjustment parameters;
  • the third power control information includes: the third power control parameters of the terminal and/or the third power dynamic adjustment parameters of the terminal.
  • the information carried in the power headroom report of the terminal includes at least one of the following:
  • the first indication information indicates that the power headroom value is determined based on an actually transmitted signal or signaling, or the first indication information indicates that the power headroom value is based on a reference signal or determined by signaling;
  • the second indication information is used to indicate whether the terminal supports power backoff
  • the power backoff parameter of the terminal is the power backoff parameter of the terminal.
  • the first power control parameter includes at least one of the following:
  • the first path loss reference information The first path loss reference information
  • the first power control state adjustment value The first power control state adjustment value.
  • the second power control parameter includes at least one of the following:
  • identification information of the second target SRS where the identification information of the second target SRS indicates the SRS for which the second power control parameter is adjusted
  • the second power control state adjustment value is the second power control state adjustment value.
  • the third power control parameter includes at least one of the following:
  • identification information of the third target SRS where the identification information of the third target SRS indicates the SRS for which the third power control parameter is adjusted
  • the third power control state adjustment value is the third power control state adjustment value.
  • the first power dynamic adjustment parameter includes at least one of the following:
  • the second power dynamic adjustment parameter includes at least one of the following:
  • Identification information of the second target SRS where the identification information of the second target SRS indicates the SRS adjusted by the second power dynamic adjustment parameter
  • the second power control adjusts the state value
  • the third power dynamic adjustment parameter includes at least one of the following:
  • identification information of the third target SRS where the identification information of the third target SRS indicates the SRS adjusted by the third power dynamic adjustment parameter
  • the third power control adjusts the state value
  • the second receiving module 1202 adjusts the transmit power of the fourth target SRS, including:
  • the identification information includes at least one of the following: SRS identifier, quantity, and SRS group identifier.
  • the identification information of the second target SRS is bits with a length of M, where M is a submultiple of the number of the second target SRS; and/or, the third target The identification information of the SRS is a length of N bits, where N is a divisor of the number of the third target SRS.
  • the third sending module 1201 is further configured to report terminal capability information to the LMF entity or the location server or the serving cell and/or the serving base station, where the terminal capability information includes at least one of the following 1: Whether the terminal supports reporting power headroom reports to the LMF entity or the location server, whether the terminal supports SRS closed-loop power control, and whether the terminal receives power control information sent by the LMF entity or the location server.
  • the second receiving module 1202 is further configured to receive target information request information, where the target information request information is used to request the target information of the terminal.
  • the power control device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the power control device in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the power control apparatus provided by the embodiments of the present application can implement each process implemented by the terminal in the method embodiments of FIG. 2 to FIG. 9 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • an embodiment of the present application further provides a communication device 1300, including a processor 1301, a memory 1302, a program or instruction stored in the memory 1302 and executable on the processor 1301,
  • a communication device 1300 including a processor 1301, a memory 1302, a program or instruction stored in the memory 1302 and executable on the processor 1301,
  • the communication device 1300 is a terminal
  • the program or instruction is executed by the processor 1301
  • each process of the foregoing power control method embodiments can be implemented, and the same technical effect can be achieved.
  • the communication device 1300 is a network side device, when the program or instruction is executed by the processor 1301, each process of the above power control method embodiment can be implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • FIG. 14 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1400 includes but is not limited to: a radio frequency unit 1401, a network module 1402, an audio output unit 1403, an input unit 1404, a sensor 1405, a display unit 1406, a user input unit 1407, an interface unit 1408, a memory 1409, a processor 1410 and other components .
  • the terminal 1400 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1410 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 14 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1404 may include a graphics processor (Graphics Processing Unit, GPU) 14041 and a microphone 14042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1406 may include a display panel 14061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1407 includes a touch panel 14071 and other input devices 14072 .
  • the touch panel 14071 is also called a touch screen.
  • the touch panel 14071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 14072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described herein again.
  • the radio frequency unit 1401 receives the downlink data from the network side device, and then processes it to the processor 1410; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 1409 may be used to store software programs or instructions as well as various data.
  • the memory 1409 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1409 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM) ), erasable programmable read-only memory (ErasablePROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • ErasablePROM ErasablePROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 1410 may include one or more processing units; optionally, the processor 1410 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1410.
  • the radio frequency unit 1501 is configured to report the target information of the terminal to the LMF entity or the location server, wherein the target information includes at least one of the following: a power headroom report of the terminal, a first power of the terminal control information; and/or
  • the processor 1410 is configured to receive the second power control information and/or the third power control information, and adjust the transmit power of the fourth target SRS based on the second power control information and/or the third power control information, wherein,
  • the second power control information comes from the LMF entity or the location server, and the third power control information comes from the network side device;
  • the first power control information includes: the first power control parameter of the terminal and/or the first power dynamic adjustment parameter of the terminal;
  • the second power control information includes: the second power of the terminal control parameters and/or second power dynamic adjustment parameters of the terminal;
  • the third power control information includes: third power control parameters of the terminal and/or third power dynamic adjustment parameters of the terminal.
  • the network device 1500 includes: an antenna 1501 , a radio frequency device 1502 , and a baseband device 1503 .
  • the antenna 1501 is connected to the radio frequency device 1502 .
  • the radio frequency device 1502 receives information through the antenna 1501, and sends the received information to the baseband device 1503 for processing.
  • the baseband device 1503 processes the information to be sent and sends it to the radio frequency device 1502
  • the radio frequency device 1502 processes the received information and sends it out through the antenna 1501 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1503 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 1503 .
  • the baseband apparatus 1503 includes a processor 1504 and a memory 1505 .
  • the baseband device 1503 may include, for example, at least one baseband board on which multiple chips are arranged, as shown in FIG. 15 , one of the chips is, for example, the processor 1504 , which is connected to the memory 1505 to call the program in the memory 1505 to execute The network devices shown in the above method embodiments operate.
  • the baseband device 1503 may further include a network interface 1506 for exchanging information with the radio frequency device 1502, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network-side device in the embodiment of the present invention further includes: an instruction or program stored in the memory 1505 and executable on the processor 1504, and the processor 1504 invokes the instruction or program in the memory 1505 to execute the instruction or program shown in FIG. 10 or FIG. 12 . In order to avoid repetition, it is not repeated here.
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the power control method embodiments in the foregoing FIG. 2 to FIG. 9 are implemented. and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction, and implement the above-mentioned FIG. 2 to
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run a network-side device program or instruction, and implement the above-mentioned FIG. 2 to
  • FIG. 9 Each process implemented by the embodiment of the power control method in FIG. 9 can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • An embodiment of the present application further provides a computer program product, the computer program product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being
  • the computer program product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

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Abstract

La présente demande se rapporte au domaine technique des communications sans fil. Un procédé de commande de puissance, un terminal, et un dispositif côté réseau sont divulgués. Le procédé de commande de puissance comprend les étapes suivantes : une entité cible reçoit des informations cibles ; l'entité cible détermine et envoie des secondes informations de commande de puissance du terminal sur la base des informations cibles ; ou l'entité cible transmet les informations cibles à une cellule de desserte et/ou à une station de base de desserte du terminal, de sorte que la cellule de desserte et/ou la station de base de desserte réalisent une commande de puissance sur le terminal sur la base des informations cibles.
PCT/CN2021/119519 2020-09-23 2021-09-22 Procédé de commande de puissance, terminal, et dispositif côté réseau WO2022063102A1 (fr)

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WO2024125292A1 (fr) * 2022-12-12 2024-06-20 华为技术有限公司 Procédé de réglage de puissance et appareil de communication

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