Power control method, terminal and network-side device

Abstract

The present application discloses a power control method, a terminal, and a network-side device, belonging to the field of wireless communication technologies. Among them, a power control method includes: a target entity receives target information; the target entity determines and sends second power control information of the terminal based on the target information; or, the target entity forwards 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 performs power control on the terminal based on the target information.

Description

Technical Field

[0001] This application belongs to the field of wireless communication technologies, and particularly relates to a power control method, a terminal, and a network-side device. Background Art

[0002] In the related art, the uplink power control of a terminal or a user equipment (UE) includes an open-loop power control part, a closed-loop power control part, and other adjustment amounts. Currently, the sounding reference signal (SRS) for positioning only supports open-loop power control. The power control of the SRS only considers configuration parameters and semi-static path loss estimation, without considering other factors. Therefore, the power control of the SRS is inaccurate. Summary of the Invention

[0003] Embodiments of this 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.

[0004] In a first aspect, a power control method is provided, including: a target entity receives target information, where 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 headroom report of a terminal, first power control information of the terminal, and received power information of a first target SRS; the target entity determines and sends second power control information of the terminal based on the target information; or, 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; where the first power control information includes: a first power control parameter of the terminal and / or a first power dynamic adjustment parameter of the terminal; and the second power control information includes: a second power control parameter of the terminal and / or a second power dynamic adjustment parameter of the terminal.

[0005] In a second aspect, a power control method is provided, including: a network-side device reports target information of a terminal to an LMF entity or a location server; 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, where the first power control information includes: a first power control parameter and / or a first power dynamic adjustment parameter of the terminal; and received power information of a first target SRS.

[0006] In a third aspect, a power control method is provided, including: the terminal reports target information of the terminal to the LMF entity or the location server, where the target information includes at least one of the following: the power headroom report of the terminal, the first power control information of the terminal; and / or, the terminal receives second power control information and / or third power control information, and adjusts the transmission power of the fourth target SRS based on the second power control information and / or the third power control information, where 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; where 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 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 dynamic adjustment parameter of the terminal.

[0007] In a fourth aspect, a power control device is provided, which is applied to the LMF entity or the location server. The device includes: a first receiving module, configured to receive target information, where the target information includes at least one of the following: the power headroom report of the terminal, 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 forward the target information to the serving cell and / or the 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; where 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 dynamic adjustment parameter of the terminal.

[0008] In a fifth aspect, a power control device is provided, which is applied to the network-side device. The device includes: a determining module, configured to determine the target information of the terminal; a second sending module, 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: the power headroom report of the terminal; the first power control information of the terminal, and the first power control information includes: the 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.

[0009] Sixth aspect, a power control device is provided, which is applied to a terminal. The device includes: a third sending module, configured to report target information of the terminal to an LMF entity or a location server, where the target information includes at least one of the following: a power margin report of the terminal, first power control information of the terminal; and / or, a second receiving module, configured to receive second power control information and / or third power control information, and adjust the transmission power of a fourth target SRS based on the second power control information and / or the third power control information, where the second power control information is from the LMF entity or the location server, and the third power control information is from a network-side device; where the first power control information includes: a first power control parameter of the terminal and / or a first power dynamic adjustment parameter of the terminal; the second power control information includes: a second power control parameter of the terminal and / or a second power dynamic adjustment parameter of the terminal; the third power control information includes: a third power control parameter of the terminal and / or a third power dynamic adjustment parameter of the terminal.

[0010] Seventh aspect, a network-side device is provided. The network-side device 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, the steps of the method described in the first aspect or the second aspect are implemented.

[0011] Eighth aspect, a terminal is provided. The terminal 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, the steps of the method described in the third aspect are implemented.

[0012] Ninth aspect, a network-side device is provided. The network-side device 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, the steps of the method described in the third aspect are implemented.

[0013] Tenth aspect, a readable storage medium is provided. A program or instruction is stored on the readable storage medium. 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 of the method described in the third aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0014] Eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run a network-side device program or instruction to implement the method described in the first aspect or the second aspect, or the processor is configured to run a terminal program or instruction to implement the method described in the first aspect.

[0015] In a twelfth aspect, a computer program product is provided, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor. When the program or instructions are executed by the processor, the steps of the method described in the first aspect, or the steps of the method described in the third aspect, or the steps of the method described in the third aspect are implemented.

[0016] In an embodiment of the present application, a terminal or a network-side device reports target information of the terminal to an LMF entity or a location server. The target information includes at least one of the following: a power headroom report, first power control information, and received power information of a first target SRS. The LMF entity or the location server performs power control on a 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 performs power control on a third target SRS of the terminal based on the target information, thereby improving the accuracy of power control of the SRS. Description of the Drawings

[0017] Figure 1 A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown;

[0018] Figure 2 A schematic flowchart of a power control method according to an embodiment of the present application is shown;

[0019] Figure 3 Another schematic flowchart of a power control method according to an embodiment of the present application is shown;

[0020] Figure 4 Another schematic flowchart of a power control method according to an embodiment of the present application is shown;

[0021] Figure 5 Another schematic flowchart of a power control method according to an embodiment of the present application is shown;

[0022] Figure 6 Another schematic flowchart of a power control method according to an embodiment of the present application is shown;

[0023] Figure 7 Another schematic flowchart of a power control method according to an embodiment of the present application is shown;

[0024] Figure 8 Another schematic flowchart of a power control method according to an embodiment of the present application is shown;

[0025] Figure 9 Another schematic flowchart of a power control method according to an embodiment of the present application is shown;

[0026] Figure 10A schematic structural diagram of the power control device according to an embodiment of the present application is shown;

[0027] Figure 11 Another schematic structural diagram of the power control device according to an embodiment of the present application is shown;

[0028] Figure 12 Yet another schematic structural diagram of the power control device according to an embodiment of the present application is shown;

[0029] Figure 13 A schematic structural diagram of a communication device provided by an embodiment of the present application is shown;

[0030] Figure 14 A schematic hardware structure diagram of a terminal provided by an embodiment of the present application is shown;

[0031] Figure 15 A schematic hardware structure diagram of a network-side device provided by an embodiment of the present application is shown. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application belong to the scope of protection of the present application.

[0033] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order different from those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0034] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR term is used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0035] Figure 1The block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can also be referred to as a terminal device or a user terminal (User Equipment, UE). The terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc. Terminal-side devices. Wearable devices include: bracelets, earphones, glasses, etc. It should be noted that in the embodiments of the present application, the specific type of the terminal 11 is not limited. The network-side device 12 can be a base station or a core network. Among them, the base station can be called a Node B, an evolved Node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0036] In the embodiments of the present application, the network-side device and / or the terminal report target information to a local management function (Location Management Function, LMF) entity or a location server. The LMF entity or the location server performs power control on the target SRS based on the received target information. Alternatively, 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 perform power control on the target SRS of the terminal based on the target information.

[0037] In the embodiments of the present application, the network-side device includes: the serving cell and / or serving base station of the terminal, and / or, the neighboring cell and / or neighboring cell base station of the terminal. Wherein, the serving base station is the base station to which the terminal is connected or camped, and the neighboring cell of the terminal may be a neighboring cell participating in the positioning of the terminal. For example, a neighboring cell that receives the sounding reference signal (SRS) for positioning sent by the terminal.

[0038] In the embodiments of the present application, the SRS may be a positioning SRS or other SRSs for positioning, which is not specifically limited in the embodiments of the present application.

[0039] Next, in conjunction with the accompanying drawings, the power control method provided by the embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0040] Figure 2 FIG. 1 shows a schematic flowchart of a power control method in the embodiments of the present application. The method 200 may be executed by a network-side device. In other words, the method may be executed by software or hardware installed on the network-side device. As Figure 2 shown, the method may include the following steps.

[0041] S210, the network-side device reports the target information of the terminal to the LMF entity or location server.

[0042] Wherein, the target information includes at least one of the following: the power headroom report (PHR) of the terminal; the first power control information of the terminal; and the received power information of the first target SRS, where the first target SRS is the SRS for positioning sent by the terminal, and the first power control information may include a first power control parameter and / or a first power dynamic adjustment parameter.

[0043] In a possible implementation, before S210, the network-side device may receive the first target SRS sent by the terminal, for example, a positioning SRS and / or other SRSs for positioning. Based on the first target SRS, the above target information of the terminal may be determined.

[0044] For example, after the serving cell and / or serving base station of the terminal receives the first target SRS of the terminal, it may obtain the received power information of receiving 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 receiving the first target SRS, etc., or may be the first power control information configured for the first target SRS. After the neighboring cell and / or neighboring cell base station of the terminal receives the first target SRS of the terminal, it may obtain the received power information of receiving the first target SRS.

[0045] In a possible implementation, the information carried in the power headroom report of the terminal may include at least one of the following:

[0046] (1) The identification information of the terminal; through this identification information, the LMF entity or the location server can know the terminal to which the reported power headroom report belongs.

[0047] (2) The identification information of the first target SRS; through this identification information, the LMF entity or the location server can know the SRS that the reported power headroom report targets or refers to.

[0048] (3) The direction information of the first target SRS; for example, the spatial relationship information, path loss reference information, or transmit beam information of the first target SRS.

[0049] (4) The grouping information of the first target SRS; through this grouping information, the LMF entity or the location server can know the group to which the first target SRS belongs, such as the active state group ID, SRS set ID, or SRS resource group ID.

[0050] (5) The power headroom (PH) value of the terminal.

[0051] (6) The maximum transmit power (P CMAX,f,c ) of the terminal.

[0052] (7) The first indication information, where the first indication information indicates that the power headroom value is determined based on the actual transmitted signal or signaling, or the first indication information indicates that the power headroom value is determined based on the reference signal or signaling.

[0053] (8) The second indication information, where the second indication information is used to indicate whether the terminal supports power backoff.

[0054] (9) The power backoff parameter of the terminal.

[0055] In a specific application, the power headroom report of the terminal reported by the network-side device to the LMF or the location server may include a combination of one or more of the above information. For example, 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. Of course, other combinations may also be included, which are not specifically limited in the embodiments of this application.

[0056] Among them, the power headroom and the maximum transmission power can be the power headroom and the maximum transmission power of the terminal under the primary cell. Alternatively, the power headroom and the maximum transmission power can be reported to the LMF entity or the location server in combination with cell information (for example, the cell ID, which can be the serving cell ID, the primary cell ID, or the secondary cell ID). For example, in one embodiment, a serving cell reports the serving cell and / or cell identification information together with the power headroom report information of the terminal to the LMF or the location server. Among them, the power headroom report information of the terminal can optionally be the power headroom report under this serving cell, or the power headroom report after the UE considers one or more serving cells; in another embodiment, the UE reports the power headroom reports under one or more serving cells and the cell identification information separately; it should be noted that the power headroom report under the serving cell can be understood as the maximum power supported under this serving cell, the remaining power value, whether to use the 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 consider the power headroom reported by the primary cell or one of the serving cells, or consider the power headroom under multiple active serving cells and the total maximum transmit power of the UE together.

[0057] In a possible implementation manner, the first power control parameter of the terminal includes at least one of the following:

[0058] (1) The identification information of the terminal;

[0059] (2) The identification information of the first target SRS, where the identification information of the first target SRS can indicate the SRS corresponding to the first power control parameter;

[0060] (3) The direction information of the first target SRS; for example, spatial relationship information, path loss reference information, or transmit beam information.

[0061] (4) The power value P O_SRS,b,f,c (q s ) of the first expected received target SRS;

[0062] (5) The resource information M SRS,b,f,c (i) of the first target SRS;

[0063] (6) The first power adjustment factor α SRS,b,f,c (q s ) of the first target SRS;

[0064] (7) The first path loss value PL b,f,c (q d), where the first path loss value can be obtained according to path loss reference information. That is, the path loss value measured by the UE for the path loss reference signal configured for the first target SRS and / or obtained by the SSB used to obtain the Mib.

[0065] (8) First path loss reference information;

[0066] (9) First power control state adjustment value.

[0067] In a possible implementation, the power headroom report is the power headroom report of the terminal in one or more serving cells; and / or the first power control information is the first power control parameter and / or the first power dynamic adjustment parameter of the terminal in one or more serving cells.

[0068] In a possible implementation, the received power information of the first target SRS can be the received power information of the first target SRS sent by the terminal received by the network-side device. The received power information can include at least one of the following:

[0069] (1) Identification information of the terminal;

[0070] (2) Identification information of the first target SRS, and the identification information of the first target SRS is used to indicate the SRS corresponding to the received power information;

[0071] (3) Direction information of the first target SRS, for example, spatial relationship information, path loss reference information, transmit beam information, etc. of the first target SRS;

[0072] (4) Received power of the first target SRS; for example, one or more of the reference signal received power (RSRP), reference signal received quality (RSRQ), and reference signal received strength indication (RSSI) of the first target SRS.

[0073] (5) Quality parameters of the first target SRS, for example, signal-to-noise ratio (SNR) and / or signal-to-noise and interference ratio (SINR) of the first target SRS;

[0074] (6) Indication information indicating that the first target SRS is not successfully received. That is, this indication information indicates that the network-side device fails to successfully receive the first target SRS sent by the terminal.

[0075] In a possible implementation manner, the first power dynamic adjustment parameter may include at least one of the following:

[0076] (1) Identification information of the terminal;

[0077] (2) Identification information of the first target SRS, and this identification information may indicate the SRS corresponding to the first power dynamic adjustment parameter;

[0078] (3) Direction information of the first target SRS (such as spatial relationship information, path loss reference information, transmission beam information);

[0079] Through the above (1)-(3), the first target SRS corresponding to the first power dynamic adjustment parameter can be identified.

[0080] (4) First power control adjustment status value;

[0081] (5) Indication information for activating the power dynamic adjustment signaling;

[0082] (6) Indication information for deactivating the power dynamic adjustment signaling.

[0083] In a possible implementation manner, the network-side device may include: the serving cell of the terminal and / or the serving base station and / or the neighboring cell of the terminal and / or the neighboring base station. In this possible implementation manner, the terminal may send the first target SRS to the serving cell and / or the neighboring cell. After the serving cell and / or the serving base station and / or the neighboring cell and / or the neighboring base station receive the first target SRS, based on the situation of receiving the first target SRS, they report the target information of the terminal to the LMF entity or the location server. For example, after the serving cell and / or the serving base station receive the first target SRS and the PHR reported by the terminal, they may report the power margin report of the terminal, the first power control information of the first target SRS, and the received power information of the first target SRS of this serving cell or serving base station, while the neighboring cell or the neighboring cell and / or the neighboring 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. Among them, 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 power control parameter and / or the power dynamic adjustment parameter that the first target SRS is expected to change to.

[0084] In a possible implementation, the target information may further include cell information of the serving cell of the terminal and / or cell information of the neighboring cells of the terminal. Among them, the cell information may be cell identification information, so that the LMF entity or the location server can know the cell where other information included 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; the second power dynamic adjustment parameter of the terminal.

[0085] In a possible implementation, after receiving the target information, the LMF entity or the location server may return the power control information of the terminal to the network-side device, 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: the network-side device receives the second power control information of the terminal, where the second power control information includes: a second power control parameter and / or a second power dynamic adjustment parameter.

[0086] Optionally, before configuring the power control information of the terminal on the network side, the network-side device may also receive the second power control information of the terminal for determining the power configuration information configured for the terminal. In other words, there may not be an inevitable sequence or connection relationship between the network-side device receiving the second power control information of the terminal and S210.

[0087] Among them, the second power control parameter sent by the LMF or the location server may include 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, transmit beam information), the expected received power value P of the second target SRS O_SRS,b,f,c (q s );the resource information M of the second target SRS SRS,b,f,c (i); the second power adjustment factor α SRS,b,f,c (q s );the second path loss value PL b,f,c (q d );the second path loss reference information; the second power control state adjustment value. Among them, the identification information of the second target SRS indicates the SRS controlled by the second power control parameter. The second target SRS and the first target SRS may be the same or different. For example, the second target SRS may be a subset of the first target SRS. Specifically, the embodiments of the present application do not make any limitations.

[0088] The second power dynamic adjustment parameter sent by the LMF or the location server may include at least one of the following: the identification information of the target 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, transmit beam information), the second power control adjustment status value, the activation dynamic adjustment signaling, and the deactivation dynamic adjustment signaling.

[0089] In another possible implementation, after receiving the received power information of the first target SRS sent by the neighboring cell and / or neighboring base station of the terminal, the LMF entity or the location server may return the received power information of the first target SRS to the serving cell and / or serving base station of the terminal, so that the serving cell and / or serving base station can obtain the received power information of the first target SRS of the neighboring cell and control the power of the terminal to send the first target SRS to the neighboring cell according to the received power information. Therefore, after S210, the method may further include: the network-side device receives the received power information of the first target SRS.

[0090] In a possible implementation, after receiving the second power control information and / or the received power information of the first target SRS of the terminal, the network-side device may use the second power control information as the reference power control information of the terminal to control the power of the third target SRS of the terminal. Therefore, in a possible implementation, 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 relevant information of the terminal, and the received power information of the first target SRS. Among them, the relevant information of the terminal may include at least one of the following: the capability information of the terminal, the maximum power information, the scheduling situation of the terminal on the time-frequency resource for sending the first target SRS (for example, whether other uplink signals or data of the terminal are simultaneously scheduled on this time-frequency resource, and / or whether uplink signals or data of other terminals other than the terminal are simultaneously scheduled on this time-frequency resource), etc.

[0091] Alternatively, 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 whether there is a change in the third power control information or the second power control information relative to the previous first power control information. If so, the determined third power control information may be sent to the terminal, or it may 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 may be forwarded to the UE. If it cannot support, an indication information of inability to support or the third power control information determined by the current network-side device may be reported to the LMF entity or the location server.

[0092] In addition, the network-side device can determine the third power control information based on whether the second power control information can be supported by the terminal, such as whether it exceeds the maximum capability or whether it meets the configuration requirements. For example, if the second power control information includes second power control parameters and the third power control parameters do not meet the target of the second power control parameters, power adjustment is achieved through the third power dynamic adjustment parameters.

[0093] In another possible implementation, if the received second power control information does not include the second power dynamic adjustment parameter, the network-side device can determine the third power dynamic adjustment parameter of the terminal based on the second power control information configured by the LMF and / or the received power information of the first target SRS. For example, through the third power dynamic adjustment parameter, after dynamic adjustment of the terminal, the received power of the first target SRS meets a certain threshold, or is equivalent to or approximates the result of the second power control information configured by the LMF.

[0094] In the above possible implementation, the third power control information includes the third power control parameter and / or the third power dynamic adjustment parameter of the terminal.

[0095] Among them, 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, transmit beam information), the expected received power value P O_SRS,b,f,c (q s ) of the third target SRS; the resource information M SRS,b,f,c (i) of the third target SRS; the third power adjustment factor α SRS,b,f,c (q s ) of the third target SRS; the third path loss value PL b,f,c (q d ) of the third target SRS; the third path loss reference information; the third power control state adjustment value. Among them, the identification information of the third target SRS indicates the SRS for which the third power control parameter is adjusted. The third target SRS and the second target SRS may be the same or different, and specific embodiments of the present application do not make any limitations in this regard.

[0096] The third power dynamic adjustment parameter may include at least one of the following: the identification information of the target 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, transmit beam information), the third power control adjustment state value, the activation dynamic adjustment signaling, and the deactivation dynamic adjustment signaling.

[0097] Alternatively, in a possible implementation, the network device may also 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 first target SRS received by the neighboring cell from this cell is less than the threshold, the power information of the first target SRS sent to this cell is adjusted (for example, adjusting the path loss reference or spatial relationship information, P0, etc.), or this cell is removed from the path loss reference or spatial relationship pointing list and preferentially pointed to other cells.

[0098] Alternatively, in a possible implementation, the network device may also use the second power control information of the received terminal as the third power control information of the terminal and send the second power control information to the terminal.

[0099] In the above possible implementation, the values of the 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 is not specifically limited in this embodiment.

[0100] For example, 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.

[0101] In addition, in different cases, 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. For example, in some cases, the power dynamic adjustment parameter includes the indication information of the activation power dynamic adjustment signaling, while in some cases, the power dynamic adjustment parameter includes the indication information of the deactivation dynamic adjustment signaling, which is not specifically limited in this embodiment.

[0102] In a possible implementation, the network device sending the third power control information of the terminal to the terminal may include:

[0103] If the third power control information includes a third power dynamic adjustment parameter, the network device sends a Downlink Control Information (DCI) command to the terminal, where the DCI command carries the third power dynamic adjustment parameter of the terminal; and / or,

[0104] If the third power control information includes a third power dynamic adjustment parameter, the network-side device sends a first Medium Access Control (MAC) Control Element (CE) command to the terminal, where the first MAC CE command carries the third power dynamic adjustment parameter; and / or,

[0105] If the third power control information includes a third power control parameter, the network-side device sends a second MAC CE command or a Radio Resource Control (RRC) command to the terminal, where the second MAC CE or the RRC command carries the third power control parameter.

[0106] That is to say, in the above possible implementation manners, 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 a first MAC CE command. Additionally, 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 an RRC command.

[0107] Among them, the above third power control information may be related to a third target SRS, that is, this power control information may not be used to control the transmission power of all SRSs (or all activated SRSs), but to control the transmission power of the third target SRS. For example, 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 transmission power of the third target SRS, where the third target SRS may be determined by the identification information of the third target SRS of the third power dynamic adjustment parameter.

[0108] In the above possible implementation manners, the identification information (including but not limited to the identification information of the first target SRS, the identification information of the second target SRS, and the identification information of the third target SRS) includes at least one of the following: SRS identifier, quantity, and SRS group identifier. Wherein, the quantity refers to the number of SRSs transmitted using the first power control information, the second power control information, or the third power control information. For example, the quantity of the third target SRS refers to the quantity of the third target SRSs transmitted in the subsequent period adjusted by the third power dynamic adjustment parameter. For example, if the third target SRS is transmitted periodically, and the quantity of the third target SRS is n, it indicates that the third power dynamic adjustment parameter is used to adjust the transmission power of the third target SRSs transmitted in the subsequent n periods. For another example, the SRS can also be in accordance with a certain sorting rule, and the quantity in the identification information can be the number of the first target SRSs (or the second target SRSs, or the third target SRSs) that are activated or deactivated and adjusted. For example, in an SRS set or an SRS group, the first n SRSs are activated or starting from a certain starting point, n SRSs are activated. The SRS group identifier can be a group identifier or a group number, that is, it indicates that the first power dynamic adjustment parameter, the second power dynamic adjustment parameter, or the third power dynamic adjustment parameter is used to adjust the power of a group of SRSs corresponding to the group identifier or the group number. The SRS grouping methods include but are not limited to: grouping according to the activation state, grouping according to the spatial relationship, path loss reference information, or signal set (per set), etc.

[0109] Alternatively, the identification information of the third target SRS can also be a bit string of length N, where N is a divisor of the quantity of the third target SRS. For example, assuming the quantity of the third target SRS is 6, then N can be 1, 2, 3, and 6, that is, one bit in the N bits can indicate one or more third target SRSs. In the embodiments of the present application, the third target SRS is not limited to the corresponding SRS resource, SRS positioning resource (PosResource), or SRS resource set and SRS positioning resource set (PosResource set). When including the SRS resource and the SRS positioning resource (PosResource), the indication information of the target SRS can also be used to indicate whether the power dynamic adjustment parameter is for the target SRS corresponding to the SRS resource or the SRS PosResource.

[0110] In a possible implementation, the network-side device may execute S210 after receiving a request. Therefore, in this possible implementation, before S210, the method may further include: the network-side device receives 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 an LMF entity or a location server. Through this possible implementation, when the measurement result of the neighboring cell received by the LMF entity or the location server does not meet the expectation or the positioning result does not meet the expectation, the LMF entity or the location server may send target information request information to the network-side device, requesting the network-side device to report the target information.

[0111] In a possible implementation, the terminal may also report its capability information. Therefore, in this possible implementation, 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 may further include: the network-side device receives the terminal capability information reported by the terminal, where the terminal capability information includes at least one of the following: whether the terminal supports reporting a power headroom report to the LMF entity or the location server, whether the terminal supports closed-loop power control of positioning SRS, and whether the terminal receives power control information sent by the LMF entity or the location server. For example, 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. At the same time, the terminal may also report the terminal capability information to the LMF entity or the location server. Through this possible implementation, the network-side device can know whether the terminal supports reporting a power headroom report to the LMF entity or the location server, whether it supports closed-loop power control of SRS, and / or whether it receives power control information sent by the LMF entity or the location server, so as to determine the power control method of the terminal's SRS. For example, if the terminal supports closed-loop power control of SRS, the network-side device may send a closed-loop power control part, such as a power control adjustment value, to the terminal. For another example, the network-side device may send power dynamic adjustment parameters to the terminal.

[0112] Through the method provided in the embodiments of the present application, the network-side device reports the target information of the terminal to the LMF entity or the location server, and the target information includes at least one of the following: power headroom report, power control parameter, power dynamic adjustment parameter, and received power information of the first target SRS, so that the LMF entity or the location server can obtain the power-related information of the terminal. Moreover, in the embodiments of the present application, the neighboring cells of the terminal can also report the received power information of the first target SRS of the terminal to the LMF entity or the location server, so as to support power control based on neighboring cell measurements; in addition, the reported target information may include the direction information of the first target SRS, so as to achieve different power control for SRSs in different directions. Therefore, by adopting the technical solution provided in the embodiments of the present application, the accuracy of SRS power control is improved.

[0113] In the embodiments of the present application, the signaling between the serving cell gNB and the location server (or LMF entity) includes but is not limited to any one of the following:

[0114] · Long-Term Evolution Positioning Protocol Annex (LPPa) signaling;

[0115] · New Radio Positioning Additional protocol (NRPPa) signaling;

[0116] For example, the location server instructs the neighboring TRP or the gNB associated with the neighboring TRP through LPPa, and the neighboring TRP or the gNB associated with the neighboring TRP sends the PRS configuration of the neighboring TRP to the gNB through the Xn interface; or, the location server sends the PRS configuration of the neighboring TRP to the serving gNB or the location server where the UE is located through the core network interface, and then sends it to the serving gNB through LPPa signaling.

[0117] The signaling between the serving cell and / or the serving base station and the terminal includes but is not limited to any one of the following:

[0118] · Radio Resource Control (RRC) command;

[0119] · MAC CE;

[0120] · DCI;

[0121] · Message 1 (Msg1) in the two-step random access process;

[0122] · Message 3 (Msg3) in the four-step bearer access process;

[0123] · Broadcast signaling;

[0124] · Paging signaling;

[0125] ·Combination of one or more of the above signaling.

[0126] Figure 3 Another schematic flow diagram showing the power control method in an embodiment of the present application. This method 300 can be executed by a terminal. In other words, the method can be executed by software or hardware installed on the terminal. As Figure 3 shown, the method may include the following steps S310 and / or S312.

[0127] S310, the terminal reports the target information of the terminal to the LMF entity or the location server. Among them, the target information includes at least one of the following: the power headroom report of the terminal, the first power control information of the terminal, where the first power control information includes the first power control parameter of the terminal and the second power dynamic adjustment parameter of the terminal.

[0128] Among them, each parameter item included in the power headroom report and the first power control information is the same as that in method 200. For details, please refer to the description in method 200 and will not be elaborated here.

[0129] For example, 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.

[0130] In a possible implementation, the terminal may execute S310 after receiving a request sent by the LMF entity or the location server. Therefore, in this possible implementation, before S310, the method may further include: the terminal receives target information request information, where the target information request information is used to request the target information of the terminal. Among them, the target information request may be sent by the LMF entity or the location server. Through this possible implementation, when the measurement result of the neighboring cell received by the LMF entity or the location server does not meet the expectation or the positioning result does not meet the expectation, the LMF entity or the location server may send target information request information to the terminal to request the terminal to report the target information.

[0131] S312, the terminal receives the second power control information and / or the third power control information, and adjusts the transmission power of the fourth target SRS based on the second power control information and / or the third power control information, where 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;

[0132] Among them, 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 control parameter of the terminal and / or the third power dynamic adjustment parameter of the terminal.

[0133] In a possible implementation manner, after receiving the target information reported by the terminal, the LMF entity or the location server may, based on the target information, send the second power control information to the terminal.

[0134] In a possible implementation manner, the specific implementation manner for the network-side device to send the third power control information to the terminal may be sent in the manner of the network-side device sending the third power control information in method 200. For specific reference, see the relevant description in method 200, which will not be elaborated here.

[0135] In the embodiments of this application, 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 method 200. For specific reference, see the relevant description in method 200.

[0136] In a possible implementation manner, the terminal may adjust the transmission power of the fourth target SRS according to the received second power control information. Therefore, in this possible implementation manner, the terminal's adjustment of the transmission power of the fourth target SRS may include: the terminal determines the fourth target SRS adjusted by the second power control information according to the identification information of the second target SRS included in the second power control information, and adjusts the transmission power of the fourth target SRS according to the second power control information. In this possible implementation, 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. For example, if the second power control information includes the second power control parameter, the terminal may determine the SRS indicated by the identification information of the second target SRS in the second power control parameter as the fourth target SRS, and adjust the transmission power of the fourth target SRS according to the second power control parameter; or, if the second power control information includes the second power dynamic adjustment parameter, the terminal may determine the SRS indicated by the identification information of the second target SRS in the second power dynamic adjustment parameter as the fourth target SRS, and adjust the transmission power of the fourth target SRS according to the second power dynamic adjustment parameter.

[0137] Alternatively, in another possible implementation, the terminal may adjust the transmission power of the fourth target SRS according to the received third power control information. Therefore, in this possible implementation, the terminal's adjustment of the transmission power of the fourth target SRS may include: the terminal determines the fourth target SRS adjusted by the third power control information according to the identification information of the third target SRS included in the third power control information, and adjusts the transmission power of the fourth target SRS according to the third power control information. In this possible implementation, 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. For example, if the third power control information includes third power control parameters, the terminal may determine the SRS indicated by the identification information of the third target SRS in the third power control parameters as the fourth target SRS, and adjust the transmission power of the fourth target SRS according to the third power control parameters; or, if the third power control information includes third power dynamic adjustment parameters, the terminal may determine the SRS indicated by the identification information of the third target SRS in the third power dynamic adjustment parameters as the fourth target SRS, and adjust the transmission power of the fourth target SRS according to the third power dynamic adjustment parameters.

[0138] Alternatively, in yet another possible implementation, the terminal may jointly adjust the transmission power of the fourth target SRS according to the second power control information and the third power control information. Therefore, in this possible implementation, the terminal's adjustment of the transmission power of the fourth target SRS may include: the terminal determines the fourth target SRS according to the identification information of the second target SRS included in the second power control information and the identification information of the third target SRS included in the third control information, and adjusts the transmission power of the fourth target SRS according to the second power control information and the third power control information.

[0139] In this possible implementation, 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, which is not specifically limited in the embodiments of the present application.

[0140] For example, the received second power control information includes second power control parameters and the received third power control information includes third power dynamic adjustment parameters. Then, closed-loop power control may be performed on the fourth target SRS according to the second power control parameters, and dynamic power adjustment may be performed on the fourth target SRS according to the third power dynamic adjustment parameters.

[0141] Similar to that in Method 200, in a possible implementation, the identification information includes at least one of the following: SRS identifier, quantity, and SRS group identifier. The specific meaning can be referred to the description in Method 200.

[0142] In a possible implementation, the identification information of the second target SRS is a bit string of length M, where M is a divisor of the quantity of the second target SRS; and / or, the identification information of the third target SRS is a bit string of length N, where N is a divisor of the quantity of the third target SRS. For the specific description, reference can be made to the relevant description of the identification information of the third target SRS in Method 200. The identification information of the second target SRS is similar to that of the third target SRS and will not be elaborated here.

[0143] Optionally, the LMF entity or the location server may send the second power dynamic adjustment parameter through an LTE positioning protocol (LPP) command.

[0144] In a possible implementation, 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 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: whether the terminal supports reporting a power headroom report to the LMF entity or the location server, 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. For example, the terminal reports terminal capability information to the LMF entity or the location server or the serving cell and / or the serving base station before or after receiving the SRS configuration. Thereby, the LMF entity or the location server or the serving cell and / or the serving base station can obtain the terminal capability information.

[0145] In the embodiments of the present application, the signaling between the location server (or the LMF entity) and the UE includes but is not limited to one of the following:

[0146] · LPP;

[0147] · NRPP;

[0148] · A combination of NRPPa and (signaling between gNB and UE);

[0149] · A combination of LPPa and (signaling between gNB and UE).

[0150] Figure 4FIG. 0 shows a schematic flowchart of a power control method in an embodiment of the present application. The method 400 may be executed by a target entity. In other words, the method may be executed by software or hardware installed on the target entity. The target entity may include an LMF entity or a location server. As Figure 4 shown, the method may include the following steps.

[0151] S410. 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, the first power control information of the terminal, and received power information of a first target SRS.

[0152] The first target SRS may be an SRS sent by the terminal for positioning. The first power control information includes a first power control parameter and / or a first power dynamic adjustment parameter.

[0153] In the embodiment of the present application, the target information received by the target entity may be the target information reported by the network-side device according to Figure 2 S210 therein, and / or may also be the target information reported by the terminal according to Figure 3 S310 therein. The specific reporting method may refer to the descriptions in the above methods 200 and 300 and will not be elaborated herein.

[0154] For example, in a possible implementation, the target entity receives target information of the terminal, including at least one of the following:

[0155] (1) 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, the first power control information of the terminal;

[0156] (2) The target entity receives the target information sent by the serving cell and / or serving base station of the terminal. The target information sent by the serving cell and / or serving base station may include at least one of the following: a power headroom report of the terminal, the first power control information of the terminal, and received power information of the first target SRS;

[0157] (3) The target entity receives the target information sent by the neighboring cell and / or neighboring cell base station of the terminal. The target information sent by the neighboring cell and / or neighboring cell base station may include the received power information of the first target SRS.

[0158] S412. The target entity determines and sends second power control information of the terminal based on the target information.

[0159] Wherein, 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.

[0160] Wherein, the second power control information is the same as the second power control information in method 200 and method 300. For specific details, reference can be made to the relevant descriptions in method 200 and method 300, which will not be elaborated here.

[0161] In a possible implementation, 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. For specific details, reference can be made to the relevant descriptions in method 300; and / or, 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 serving base station perform power control on the terminal. For example, the serving cell and / or serving base station control the terminal in the same way as sending the third control information in method 200. For specific details, reference can be made to the relevant descriptions in method 200. After receiving the third control information, the terminal may perform power adjustment according to the description in method 300. For specific details, reference can be made to the description in method 300, which will not be elaborated here.

[0162] Through the technical solution provided by the embodiments of the present application, the LMF entity or location server can obtain the target information of the terminal, so as to participate in the power control of the target SRS and improve the accuracy of the power control of the target SRS.

[0163] Figure 5 Another schematic flow diagram of the power control method according to the embodiments of the present application is shown. This method 500 may be executed by a target entity. In other words, the method may be executed by software or hardware installed on the target entity. The target entity may include an LMF entity or a location server. As Figure 5 shown, the method may include the following steps.

[0164] S510, the target entity receives target information, where the target information includes at least one of the following: the power headroom report of the terminal, the power control parameter of the terminal, the first power control information of the terminal, and the received power information of the first target SRS.

[0165] Specifically, it is the same as S410 in method 400.

[0166] S512, the target entity forwards 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.

[0167] In a possible implementation, the target information forwarded by the target entity may be the received power information of the first target SRS sent by the neighboring cell and / or the neighboring cell base station received by the target entity from the terminal. The network-side device may 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 first target SRS received by the neighboring cell pointing to this cell is less than the threshold, the power information of the first target SRS sent to this cell is adjusted (such as adjusting the path loss reference or spatial relationship information, P0, etc.), or this cell is removed from the path loss reference or spatial relationship pointing list and preferentially pointed to other cells.

[0168] In another possible implementation, the target entity may also send the second power control information determined based on the target information to the network-side device. The network-side device may determine the third power dynamic adjustment parameter of the terminal according to the second power control information and the received power information of the first target SRS. For example, through the third power dynamic adjustment parameter, after the terminal is dynamically adjusted, the received power of the first target SRS meets a certain threshold, or is equivalent to or approximates the result of the second power control information configured by the LMF.

[0169] The terminal or 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: 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 SRS power control.

[0170] Figure 6 Another flowchart showing the power control method of the embodiments of the present application. This method 600 may be executed by the neighboring cell (i.e., neighboring cell and / or neighboring cell base station) of the UE, the serving cell (i.e., serving cell and / or serving base station), the UE, and the LMF entity or the location server. As Figure 6 shown, this method may include the following steps.

[0171] S601, the serving cell configures power with the UE. In this step, the serving cell may configure the power of the target SRS for the UE to send uplink positioning.

[0172] S602, the UE sends the target SRS to the serving cell.

[0173] S603, the UE sends the target SRS to the neighboring cell.

[0174] In steps S602 and S603, the UE may send the target SRS to the serving cell and neighboring cells according to the power configuration in S601.

[0175] In specific applications, there is no specific order between S602 and S603.

[0176] S604, the UE reports the PHR to the serving cell.

[0177] Among them, the UE may report the PHR using a single - entry PHR MAC CE or a multiple - entry PHR MAC CE. Among them, the single - entry PHR MAC CE may include the power headroom of the cell and the maximum transmission power of the cell, while the multiple - entry PHR MAC CE may include the following reported content:

[0178] (1) Whether there is a PH field corresponding to ServCellIndex

[0179] (2) Whether the PH value is based on actual transmission or reference format

[0180] (3) The cell power headroom (PH) corresponding to ServCellIndex

[0181] (4) The maximum transmission power (P CMAX,f,c ) of the cell corresponding to ServCellIndex

[0182] (5) Whether the MAC entity applies power backoff according to power management.

[0183] S605, the neighboring cell performs target SRS reception and obtains the received power information of the target SRS, for example, RSRP.

[0184] S606, optionally, the serving cell adjusts the power according to the received target SRS and PHR.

[0185] In specific applications, there is no specific order between S605 and S606.

[0186] S607, the serving cell reports the target information of the UE to the LMF entity or location server.

[0187] Among them, reporting the target information includes one of the following:

[0188] 1. The PHR (Power Headroom Report) of the terminal.

[0189] Among them, the PHR may carry at least one of the following: the identification information of the UE, the identification information of the target SRS, the direction information of the target SRS (such as spatial relationship information, path loss reference information), the grouping information of the target SRS, 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 back-off is supported, and the power back-off parameter of the UE.

[0190] 2. The first power control parameter of the terminal.

[0191] Among them, the first power control parameter at least includes one of the following: the identification information of the UE, the identification information of the first target SRS, the 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 α SRS,b,f,c (q s )、and the first PL b,f,c (q d ).

[0192] 3. The first dynamic power adjustment parameter of the terminal.

[0193] Among them, the first dynamic power adjustment parameter at least includes one of the following: the identification information of the UE, the identification information of the first target SRS, the direction information of the first target SRS (such as spatial relationship information, path loss reference information), the first power control adjustment status value, and the activate / deactivate dynamic adjustment signaling.

[0194] S608. The neighboring cell reports the target information of the UE to the LMF entity or the location server.

[0195] Among them, the target information reported by the neighboring cell may include: the received power information of the first target SRS.

[0196] Among them, the received power information at least includes one of the following: the identification information of the UE, the identification information of the first target SRS, the direction information of the first target SRS (such as spatial relationship information, path loss reference information, transmit beam information), the received power of the first target SRS (RSRP, RSRQ or RSRI), the SNR or SINR of the first target SRS, and the indication information that the first target SRS is not successfully received.

[0197] Among them, this step is an optional step.

[0198] In specific applications, there is no specific sequence for S607 and S608.

[0199] S609. The LMF entity or location server adjusts the power control information according to the received target information.

[0200] S610. The LMF entity or location server sends the second power control information to the serving cell, notifying the serving cell to adjust the corresponding power parameters.

[0201] Among them, the second power control information sent by the LMF entity or location server to the serving cell may include at least one of the following:

[0202] 1. The second power control parameter of the UE.

[0203] Among them, 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), second P O_SRS,b,f,c (q s ), second M SRS,b,f,c (i), second α SRS,b,f,c (q s ), and second PL b,f,c (q d ).

[0204] 2. The second power dynamic adjustment parameter of the UE.

[0205] Among them, 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), the second power control adjustment status value, the activation / deactivation dynamic adjustment signaling.

[0206] S611. The serving cell (gNB) 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 location server, the first power control information, the relevant information of the terminal, and the received power information of the first target SRS.

[0207] Among them, the third power control information of the UE may include at least one of the following:

[0208] 1. The third power control parameter.

[0209] Among them, 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), third P O_SRS,b,f,c (q s ), third M SRS,b,f,c(i), the third α SRS,b,f,c (q s ), the third PL b,f,c (q d ).

[0210] 2. The third power dynamic adjustment parameter.

[0211] Among them, the third dynamic power adjustment parameter can be sent through a DCI command or a MAC CE. Among them, the third power dynamic adjustment parameter is carried in the DCI command or the MAC CE.

[0212] S612, The serving cell sends the third power control information to the terminal, adjusts the power parameter of the UE, and notifies the UE to adjust the corresponding power parameter.

[0213] The third power control letter 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 the specified SRS (i.e., the third target SRS).

[0214] Optionally, the specified SRS can be indicated by the identification information of the third target SRS. For example, the identification information can be:

[0215] (1) The identifier of the third target SRS and / or the number of the third target SRSs; or

[0216] (2) The group identifier of the third target SRS, and the power of the SRS in each group is adjusted according to the group identifier or group number.

[0217] Alternatively, the identification information of the third target SRS can also be N-bit bits. 1 bit indicates adjusting the power of the corresponding third target SRS, and N is a divisor of the SRS resource or PosResource of the third target SRS.

[0218] S613. The UE adjusts the power according to the third power control information sent by the serving cell.

[0219] S614. The UE sends the third target SRS to the serving cell according to the adjusted power.

[0220] S615. The UE sends the third target SRS to the neighboring cell according to the adjusted power.

[0221] Through the power control method provided by the embodiments of the present application, it is possible to support adjusting the closed-loop power control based on the maximum power of the UE and power allocation, as well as the reception status of neighboring cells. The LMF entity or the location server participates in the power control.

[0222] In this embodiment, not all steps need to be executed. Optionally, only some steps are executed.

[0223] Figure 7 Another schematic flowchart showing the power control method according to an embodiment of the present application. This method 700 can be executed by the neighboring cells (i.e., neighboring cells and / or neighboring cell base stations), serving cells (i.e., serving cells and / or serving base stations), UEs, and LMF entities or location servers of the UE. In method 700, the UE reports target information to the LMF entity or location server. As Figure 7 shown, this method may include the following steps.

[0224] S701 - S706 are the same as S601 - S606 in method 600.

[0225] S707, the UE reports target information to the LMF entity or location server.

[0226] Among them, the target information reported by the UE includes at least one of the following information:

[0227] 1. The PHR of the terminal;

[0228] Among them, the PHR carries at least one of the following: the identification information of the target UE, the identification information of the target SRS, the direction information of the target SRS (such as spatial relationship information, path loss reference information), the grouping information of the target SRS, 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 power back-off is supported, and the power back-off parameter of the UE. Among them, the PH and P CMAX,f, can be the PH and maximum power of the UE under the Pscell; or, the PH and P CMAX,f, are reported in combination with cell information (such as cell ID, serving cell ID, Pcell ID, SpcellID).

[0229] 2. The first power control parameter of the terminal

[0230] This power control parameter can be the first power control parameter after the serving cell adjusts the power according to the received first target SRS and PHR.

[0231] Among them, the parameter items included in the first power control parameter are the same as the first power control parameter in method 600, and will not be elaborated here.

[0232] S708 - S709 are the same as S607 and S608 in method 600.

[0233] S710, the LMF entity or location server adjusts the power according to the received target information. Among them, the target information includes the target information reported by the neighboring cells, serving cells, and / or UEs.

[0234] In S710, the LMF entity or the location server may send second power control information to the UE. The second power control information sent by the LMF entity or the location server may include:

[0235] 1. The second power control parameter of the terminal. For specific details, refer to the relevant description in method 600.

[0236] 2. The second power dynamic adjustment parameter of the terminal. For specific details, refer to the relevant description in method 600.

[0237] In S711, the second power control information sent by the LMF entity or the location server to the UE notifies the UE to adjust the corresponding power parameter.

[0238] Among them, the LMF entity or the location server may send the second power control information through an LPP command.

[0239] Among them, 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.

[0240] Optionally, the second target SRS may be indicated by identification information to indicate which SRS's power is specifically adjusted. For example, it may indicate the identity and / or the number of the second target SRS; or, it may indicate the group identity of the second target SRS, and adjust the power of the SRSs in each group according to the group identity or group number.

[0241] Or, it may also indicate to adjust the power of the corresponding second target SRS through bits. The length of the bit is: M, and M is a divisor of the number of the second target SRSs.

[0242] S712 - S714 are the same as S613 - S615.

[0243] Figure 8 Another flowchart showing the power control method of the embodiments of the present application. This method 800 may be executed by the neighboring cells (i.e., neighboring cells and / or neighboring base stations), serving cells (i.e., serving cells and / or serving base stations), UEs, and LMF entities or location servers of the UE. In method 800, the UE, the serving cell, and the neighboring cell 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. As Figure 8 shown, this method may include the following steps.

[0244] S801 - S810 are the same as S701 - S710.

[0245] S811. The LMF entity or location server sends TX FG power control information to the serving cell, notifying the serving cell to adjust the corresponding power parameters.

[0246] S812 - S816 are the same as S611 - S615.

[0247] Figure 9 Another schematic flowchart of the power control method according to an embodiment of the present application is shown. This method 900 can be executed by the neighboring cells (i.e., neighboring cells and / or neighboring cell base stations), serving cells (i.e., serving cells and / or serving base stations), UEs, and the LMF entity or location server of the UE. In method 900, the serving cell and neighboring cells report target information to the LMF entity or location server, and the LMF entity or location server sends the power control information of the UE to the UE. As Figure 9 shown, this method may include the following steps.

[0248] S901 - S909 are the same as S601 - S609.

[0249] S910. The LMF entity or location server sends the second power control information of the UE to the UE, notifying the UE to adjust the corresponding power parameters.

[0250] S911 - S913 are the same as S712 - S714.

[0251] In practical applications, it is also possible that the serving cell and neighboring cells report target information to the LMF entity or location server, the LMF entity or location server sends the power control information of the UE to the UE and the serving cell, and the serving cell sends the power control information to the UE according to the received power control information. Examples will not be given one by one in the embodiments of the present application.

[0252] It should be noted that for the power control method provided in the embodiments of the present application, the execution subject can be a power control device, or a control module in the power control device for executing the power control method. In the embodiments of the present application, the power control method executed by the power control device is taken as an example to illustrate the power control device provided in the embodiments of the present application.

[0253] Figure 10 A schematic structural diagram of the power control device according to an embodiment of the present application is shown, which is applied to the LMF entity or location server. As Figure 10 shown, this device 1000 mainly includes: a first receiving module 1001 and a first sending module 1002.

[0254] In an embodiment of the present application, a 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 a terminal, first power control information of the terminal, and received power information of a first target SRS; a first sending module 1002 is configured to determine and send second power control information of the terminal based on the target information; or forward 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; where the first power control information includes: a first power control parameter of the terminal and / or a first power dynamic adjustment parameter of the terminal; the second power control information includes: a second power control parameter of the terminal and / or a second power dynamic adjustment parameter of the terminal.

[0255] In a possible implementation manner, the target entity sending 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 sending the second power control information to the terminal.

[0256] In a possible implementation manner, the first receiving module 1001 receiving the target information includes at least one of the following:

[0257] Receiving the target information sent by the terminal;

[0258] Receiving the target information sent by a serving cell and / or a serving base station of the terminal;

[0259] The target entity receives the target information sent by a neighboring cell and / or a neighboring cell base station of the terminal.

[0260] In a possible implementation manner, the first sending module forwarding the target information to a serving cell and / or a serving base station of the terminal includes: forwarding the target information sent by the neighboring cell and / or the neighboring cell base station to the serving cell and / or the serving base station.

[0261] In a possible implementation manner, 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 reporting a power headroom report to an LMF entity or a location server, 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.

[0262] In a possible implementation manner, 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.

[0263] In a possible implementation, the information carried in the power headroom report of the terminal includes at least one of the following:

[0264] The identification information of the terminal;

[0265] The identification information of the first target SRS;

[0266] The direction information of the first target SRS;

[0267] The grouping information of the first target SRS;

[0268] The power headroom value of the terminal;

[0269] The maximum transmit power of the terminal;

[0270] The first indication information, where the first indication information indicates that the power headroom value is determined based on the actual transmitted signal or signaling, or the first indication information indicates that the power headroom value is determined based on the reference signal or signaling;

[0271] The second indication information, where the second indication information is used to indicate whether the terminal supports power backoff;

[0272] The power backoff parameter of the terminal.

[0273] In a possible implementation, the first power control parameter includes at least one of the following:

[0274] The identification information of the terminal;

[0275] The identification information of the first target SRS;

[0276] The direction information of the first target SRS;

[0277] The power value expected to receive the first target SRS;

[0278] The resource information of the first target SRS;

[0279] The first power adjustment factor;

[0280] The first path loss value;

[0281] The first path loss reference information;

[0282] The first power control state adjustment value.

[0283] In a possible implementation, the second power control parameter includes at least one of the following:

[0284] The identification information of the terminal;

[0285] The 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;

[0286] The direction information of the second target SRS;

[0287] The power value expected to receive the second target SRS;

[0288] The resource information of the second target SRS;

[0289] The second power adjustment factor;

[0290] The second path loss value;

[0291] The second path loss reference information;

[0292] The second power control state adjustment value.

[0293] In a possible implementation, the first power dynamic adjustment parameter includes at least one of the following:

[0294] The identification information of the terminal;

[0295] The identification information of the first target SRS;

[0296] The direction information of the first target SRS;

[0297] The first power control adjustment state value;

[0298] The indication information of the activation power dynamic adjustment signaling;

[0299] The indication information of the deactivation power dynamic adjustment signaling.

[0300] In a possible implementation, the second power dynamic adjustment parameter includes at least one of the following:

[0301] The identification information of the terminal;

[0302] The identification information of the second target SRS, where the identification information of the second target SRS indicates the SRS for which the second power dynamic adjustment parameter is adjusted;

[0303] The direction information of the second target SRS;

[0304] The second power control adjustment state value;

[0305] The indication information of the activation power dynamic adjustment signaling;

[0306] The indication information of the deactivation power dynamic adjustment signaling.

[0307] In a possible implementation, the received power information of the first target SRS includes at least one of the following:

[0308] The identification information of the terminal;

[0309] The identification information of the first target SRS;

[0310] The direction information of the first target SRS;

[0311] The received power of the first target SRS;

[0312] The quality parameter of the first target SRS;

[0313] The indication information indicating that the first target SRS is not successfully received.

[0314] The power control device in the embodiments of the present application may be a device, or a component, integrated circuit, or chip in an LMF entity or a location server.

[0315] The power control device in the embodiments of the present application may be a device with an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

[0316] The power control device provided in the embodiments of the present application can implement Figures 2 to 9 each process implemented by the LMF entity or the location server in the method embodiments, and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0317] Figure 11 Another schematic structural diagram of the power control device provided in the embodiments of the present application is shown. The device 1100 may be applied to a network-side device. As Figure 11 shown, the device 1100 mainly includes: a determination module 1101 and a second transmission module 1102.

[0318] In the embodiments of the present application, the determination module 1101 is configured to determine the target information of the terminal; the third transmission 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 one of the following: the power headroom report of the terminal; the first power control information of the terminal, 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.

[0319] In a possible implementation, the information carried in the power headroom report of the terminal includes at least one of the following:

[0320] The information carried in the power headroom report of the terminal includes at least one of the following:

[0321] The identification information of the terminal;

[0322] The identification information of the first target SRS;

[0323] The direction information of the first target SRS;

[0324] The grouping information of the first target SRS;

[0325] The power headroom value of the terminal;

[0326] The maximum transmit power of the terminal;

[0327] The first indication information, where the first indication information indicates that the power headroom value is determined based on the actual transmitted signal or signaling, or the first indication information indicates that the power headroom value is determined based on the reference signal or signaling;

[0328] The second indication information, where the second indication information is used to indicate whether the terminal supports power backoff;

[0329] The power backoff parameter of the terminal.

[0330] In a possible implementation, the first power control parameter includes at least one of the following:

[0331] The identification information of the terminal;

[0332] The identification information of the first target SRS;

[0333] The direction information of the first target SRS;

[0334] The power value P of the expected received first target SRS O_SRS,b,f,c (q s )

[0335] The resource information M of the first target SRS SRS,b,f,c (i);

[0336] The first power adjustment factor α SRS,b,f,c (q s )

[0337] The first path loss value PL b,f,c (q d )

[0338] The first path loss reference information;

[0339] The first power control state adjustment value.

[0340] In a possible implementation, the received power information of the first target SRS includes at least one of the following:

[0341] The identification information of the terminal;

[0342] The identification information of the first target SRS;

[0343] The direction information of the first target SRS;

[0344] The received power of the first target SRS;

[0345] The quality parameter of the first target SRS;

[0346] The indication information indicating that the first target SRS is not successfully received.

[0347] In a possible implementation, the first power dynamic adjustment parameter includes at least one of the following:

[0348] The identification information of the terminal;

[0349] The identification information of the first target SRS;

[0350] The direction information of the first target SRS;

[0351] The first power control adjustment status value;

[0352] The indication information for activating the power dynamic adjustment signaling;

[0353] The indication information for deactivating the power dynamic adjustment signaling.

[0354] In a possible implementation, the power headroom report is the power headroom report of the terminal in one or more serving cells; and / or the first power control information is the first power control parameter and / or the first power dynamic adjustment parameter of the terminal in one or more serving cells.

[0355] In a possible implementation, the network-side device includes: the serving cell and / or serving base station of the terminal, and / or, the neighboring cell and / or neighboring base station of the terminal.

[0356] In a possible implementation, the target information further includes: the cell information of the serving cell of the terminal, and / or, the cell information of the neighboring cell of the terminal.

[0357] In a possible implementation, it further includes a receiving module for at least one of the following:

[0358] Receive the second power control information of the terminal, where the second power control information includes: a second power control parameter and / or a second power dynamic adjustment parameter;

[0359] Receive the received power information of the first target SRS.

[0360] In a possible implementation, 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 determine 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 relevant information of the terminal, and the received power information of the first target SRS, where the relevant information of the terminal includes at least one of the following: the capability information of the terminal, the maximum power information of the terminal, and the scheduling situation of the terminal on the time-frequency resources for sending the first target SRS.

[0361] In a possible implementation, the second sending module 1102 sending the third power control information of the terminal to the terminal includes:

[0362] If the third power control information includes a third power dynamic adjustment parameter, send a downlink control information DCI command to the terminal, where the DCI command carries the third power dynamic adjustment parameter of the terminal; and / or,

[0363] If the third power control information includes a third power dynamic adjustment parameter, send a first media access control layer control element MAC CE command to the terminal, where the first MAC CE command carries the third power dynamic adjustment parameter; and / or

[0364] If the third power control information includes a third power control parameter, send a second MAC CE command or a radio resource control RRC command to the terminal, where the second MAC CE or the RRC command carries the third power control parameter.

[0365] In a possible implementation, the third power dynamic adjustment parameter includes at least one of the following:

[0366] The identification information of the terminal;

[0367] The 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;

[0368] The direction information of the third target SRS;

[0369] The third power control adjustment status value;

[0370] Indicator information for activating power dynamic adjustment signaling;

[0371] Indicator information for deactivating power dynamic adjustment signaling.

[0372] In a possible implementation, the identification information includes at least one of the following: SRS identifier, quantity, and SRS group identifier.

[0373] In a possible implementation, the identification information of the third target SRS is a bit string of length N, where N is a divisor of the quantity of the third target SRS.

[0374] In a possible implementation, it further includes: a third receiving module, configured to receive the terminal capability information reported by the terminal, where the terminal capability information includes at least one of the following: whether the terminal supports reporting power headroom reports to the LMF entity or location server, whether the terminal supports closed-loop power control of SRS, and whether the terminal receives power control information sent by the LMF entity or location server.

[0375] In a possible implementation, it further includes: a fourth receiving module, configured to receive target information request information, where the target information request information is used to request the target information of the terminal.

[0376] The power control device provided by the embodiments of the present application can implement Figures 2 to 9 each process implemented by the network side in the method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0377] Figure 12 Another structural schematic diagram of the power control device provided by the embodiments of the present application is shown. The device 1200 can be applied to a terminal. As Figure 12 shown, the device 1200 may include: a third sending module 1201 and / or a second receiving module 1202.

[0378] In an embodiment of the present application, a third sending module 1201 is configured to report target information of the terminal to an LMF entity or a 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; a second receiving module 1202 is configured to receive second power control information and / or third power control information, and adjust the transmission power of a fourth target SRS based on the second power control information and / or the third power control information, where the second power control information comes from the LMF entity or the location server, and the third power control information comes from a network-side device; where the first power control information includes: a first power control parameter of the terminal and / or a first power dynamic adjustment parameter of the terminal; the second power control information includes: a second power control parameter of the terminal and / or a second power dynamic adjustment parameter of the terminal; the third power control information includes: a third power control parameter of the terminal and / or a third power dynamic adjustment parameter of the terminal.

[0379] In a possible implementation manner, the information carried in the power headroom report of the terminal includes at least one of the following:

[0380] Identification information of the terminal;

[0381] Identification information of a first target SRS;

[0382] Direction information of the first target SRS;

[0383] Grouping information of the first target SRS;

[0384] Power headroom value of the terminal;

[0385] Maximum transmission power of the terminal;

[0386] First indication information, where the first indication information indicates that the power headroom value is determined based on an actual transmitted signal or signaling, or the first indication information indicates that the power headroom is determined based on a reference signal or signaling;

[0387] Second indication information, where the second indication information is used to indicate whether the terminal supports power backoff;

[0388] Power backoff parameter of the terminal.

[0389] In a possible implementation manner, the first power control parameter includes at least one of the following:

[0390] Identification information of the terminal;

[0391] Identification information of a first target SRS;

[0392] Direction information of the first target SRS;

[0393] Expected received power P of the first target SRS O_SRS,b,f,c (q s );

[0394] Resource identifier M of the first target SRS SRS,b,f,c (i);

[0395] First power adjustment factor α SRS,b,f,c (q s );

[0396] First path loss value PL b,f,c (q d );

[0397] First path loss reference information;

[0398] First power control state adjustment value.

[0399] In a possible implementation, the second power control parameter includes at least one of the following:

[0400] Identification information of the terminal;

[0401] Identification information of the second target SRS, and the identification information of the second target SRS indicates the SRS for which the second power control parameter is adjusted;

[0402] Direction information of the second target SRS;

[0403] Expected received power P of the second target SRS O_SRS,b,f,c (q s );

[0404] Resource identifier M of the second target SRS SRS,b,f,c (i);

[0405] Second power adjustment factor α SRS,b,f,c (q s );

[0406] Second path loss value PL b,f,c (q d );

[0407] Second path loss reference information;

[0408] Second power control state adjustment value.

[0409] In a possible implementation, the third power control parameter includes at least one of the following:

[0410] Identification information of the terminal;

[0411] 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;

[0412] Direction information of the third target SRS;

[0413] Expected received power P of the third target SRS O_SRS,b,f,c (q s )

[0414] Resource identifier M of the third target SRS SRS,b,f,c (i);

[0415] Third power adjustment factor α SRS,b,f,c (q s )

[0416] Third path loss value PL b,f,c (q d )

[0417] Third path loss reference information;

[0418] Third power control state adjustment value.

[0419] In a possible implementation, the first power dynamic adjustment parameter includes at least one of the following:

[0420] Identification information of the terminal;

[0421] Identification information of the first target SRS;

[0422] Direction information of the first target SRS;

[0423] First power control adjustment state value;

[0424] Indication information for activating the power dynamic adjustment signaling;

[0425] Indication information for deactivating the power dynamic adjustment signaling.

[0426] In a possible implementation, the second power dynamic adjustment parameter includes at least one of the following:

[0427] Identification information of the terminal;

[0428] Identification information of the second target SRS, where the identification information of the second target SRS indicates the SRS for which the second power dynamic adjustment parameter is adjusted;

[0429] Direction information of the second target SRS;

[0430] Second power control adjustment state value;

[0431] Indicator information for activating power dynamic adjustment signaling;

[0432] Indicator information for deactivating power dynamic adjustment signaling.

[0433] In a possible implementation, the third power dynamic adjustment parameter includes at least one of the following:

[0434] Identification information of the terminal;

[0435] 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;

[0436] Direction information of the third target SRS;

[0437] Third power control adjustment status value;

[0438] Indicator information for activating power dynamic adjustment signaling;

[0439] Indicator information for deactivating power dynamic adjustment signaling.

[0440] In a possible implementation, the second receiving module 1202 adjusts the transmission power of the fourth target SRS, including:

[0441] Determine the fourth target SRS adjusted by the second power control information according to the identification information of the second target SRS included in the second power control information, and adjust the transmission power of the fourth target SRS according to the second power control information; and / or,

[0442] Determine the fourth target SRS adjusted by the third power control information according to the identification information of the third target SRS included in the third control information, and adjust the transmission power of the fourth target SRS according to the third power control information.

[0443] In a possible implementation, the identification information includes at least one of the following: SRS identifier, quantity, and SRS group identifier.

[0444] In a possible implementation, the identification information of the second target SRS is a bit string of length M, where M is a divisor of the quantity of the second target SRS; and / or, the identification information of the third target SRS is a bit string of length N, where N is a divisor of the quantity of the third target SRS.

[0445] In a possible implementation, the third sending module 1201 is further configured to report terminal capability information to the LMF entity or location server or serving cell and / or serving base station, where the terminal capability information includes at least one of the following: whether the terminal supports reporting a power headroom report to the LMF entity or location server, whether the terminal supports closed-loop power control of SRS, and whether the terminal receives power control information sent by the LMF entity or location server.

[0446] In a possible implementation, 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.

[0447] The power control device in the embodiments of the present application may be a device, or a component, integrated circuit, or chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of the terminal 11 listed above. The non-mobile terminal may be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

[0448] The power control device in the embodiments of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

[0449] The power control device provided in the embodiments of the present application can implement Figures 2 to 9 each process implemented by the terminal in the method embodiments and achieve the same technical effects. To avoid repetition, details are not described here again.

[0450] Optionally, as Figure 13 shown, the embodiments of the present application further provide a communication device 1300, including a processor 1301, a memory 1302, and a program or instruction stored on the memory 1302 and executable on the processor 1301. For example, when the communication device 1300 is a terminal, when the program or instruction is executed by the processor 1301, it implements each process of the above power control method embodiments and can achieve the same technical effects. When the communication device 1300 is a network-side device, when the program or instruction is executed by the processor 1301, it implements each process of the above power control method embodiments and can achieve the same technical effects. To avoid repetition, details are not described here again.

[0451] Figure 14Schematic diagram of the hardware structure of a terminal according to an embodiment of the present application.

[0452] 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, and a processor 1410 and other components.

[0453] Those skilled in the art can understand that the terminal 1400 may further include a power source (such as a battery) for supplying power to each component. The power source can be logically connected to the processor 1410 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 14 The terminal structure shown does not limit the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0454] It should be understood that in the embodiment of the present application, the input unit 1404 may include a graphics processing unit (GPU) 14041 and a microphone 14042. The graphics processing unit 14041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1406 may include a display panel 14061, and the display panel 14061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. 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. The other input devices 14072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, which will not be elaborated here.

[0455] In the embodiment of the present application, after receiving the downlink data from the network side device, the radio frequency unit 1401 processes it for the processor 1410; in addition, it sends the uplink data to the network side device. Generally, 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, etc.

[0456] The memory 1409 can be used to store software programs or instructions and various data. The memory 1409 may mainly include a program or instruction storage area and a data storage area. Among them, the program or instruction storage area can store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1409 may include a high-speed random access memory and may also include a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0457] The processor 1410 may include one or more processing units; optionally, the processor 1410 may integrate an application processor and a modem processor. Among them, the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above-mentioned modem processor may not be integrated into the processor 1410 either.

[0458] Among them, the radio frequency unit 1501 is used to report the target information of the terminal to the LMF entity or the location server. Among them, the target information includes at least one of the following: the power margin report of the terminal, the first power control information of the terminal; and / or

[0459] The processor 1410 is used 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 transmission power of the fourth target SRS. Among them, 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;

[0460] Among them, 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 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 dynamic adjustment parameter of the terminal.

[0461] Specifically, the embodiments of the present application also provide a network-side device. As Figure 15As shown, 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. In the uplink direction, the radio frequency device 1502 receives information through the antenna 1501 and sends the received information to the baseband device 1503 for processing. In the downlink direction, the baseband device 1503 processes the information to be sent and sends it to the radio frequency device 1502. After processing the received information, the radio frequency device 1502 sends it out through the antenna 1501.

[0462] The above frequency band processing device may be located in the baseband device 1503. The method executed by the network side device in the above embodiments may be implemented in the baseband device 1503, and the baseband device 1503 includes a processor 1504 and a memory 1505.

[0463] The baseband device 1503 may include, for example, at least one baseband board, on which a plurality of chips are provided, such as Figure 15 As shown, 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 and execute the operations of the network device shown in the above method embodiments.

[0464] The baseband device 1503 may further include a network interface 1506 for interacting with the radio frequency device 1502. This interface is, for example, a common public radio interface (CPRI for short).

[0465] Specifically, the network side device in the embodiments of the present invention further includes: instructions or programs stored on the memory 1505 and executable on the processor 1504. The processor 1504 calls the instructions or programs in the memory 1505 to execute Figure 10 or Figure 12 the methods executed by the modules shown, and achieves the same technical effects. To avoid repetition, it will not be elaborated here.

[0466] The embodiments of the present application further provide a readable storage medium, on which a program or instructions are stored. When the program or instructions are executed by a processor, they implement each process implemented by the power control method embodiments described above Figures 2 to 9 and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0467] Wherein, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, etc.

[0468] Another embodiment of the present application further provides a chip, which 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 each process implemented by the power control method embodiment described above Figures 2 to 9 and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0469] Another embodiment of the present application further provides a computer program product, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, it implements each process implemented by the power control method embodiment described above Figures 2 to 9 and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0470] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

[0471] It should be noted that in this document, the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be pointed out that the methods and devices in the embodiments of the present application are not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0472] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc) and includes several instructions for causing a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present application.

[0473] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A power control method, characterized in that, Including: The target entity receives target information, where the target entity includes a Local Management Function (LMF) entity or a location server, the target information includes at least one of a power headroom report of the terminal and first power control information of the terminal, and received power information of a first target Sounding Reference Signal (SRS) reported by neighboring cells and / or neighboring cell base stations of the terminal; The target entity determines and sends second power control information of the terminal based on the target information; or, 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 performs power control on the terminal based on the target information; Wherein, the first power control information includes: a first power control parameter of the terminal and / or a first power dynamic adjustment parameter of the terminal; the second power control information includes: a second power control parameter of the terminal and / or a second power dynamic adjustment parameter of the terminal, and the power headroom report is a power headroom report of the terminal in one or more serving cells.

2. The method according to claim 1, characterized in that, The target entity sending the second power control information of the terminal includes: The target entity sends 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.

3. The method according to claim 1, wherein The target entity receiving the target information includes at least one of the following: The target entity receives the target information sent by the terminal; The target entity receives the target information sent by a serving cell and / or a serving base station of the terminal; The target entity receives the target information sent by neighboring cells and / or neighboring cell base stations of the terminal.

4. The method according to claim 1, characterized in that, The target entity forwarding the target information to a serving cell and / or a serving base station of the terminal includes: The target entity forwards the target information sent by neighboring cells and / or neighboring cell base stations to the serving cell and / or the serving base station.

5. The method according to claim 1, characterized in that, Before the target entity receives the target information, the method further includes: The target entity receives terminal capability information reported by the terminal, where 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 of SRS, and whether the terminal receives power control information sent by an LMF entity or a location server.

6. The method according to claim 1, characterized in that Before the target entity receives the target information, the method further includes: The target entity sends target information request information, where the target information request information is used to request the target information.

7. The method according to any one of claims 1 to 6, characterized in that, The information carried in the power headroom report of the terminal includes at least one of the following: Identification information of the terminal; Identification information of the first target SRS; Direction information of the first target SRS; Grouping information of the first target SRS; Power headroom value of the terminal; Maximum transmit power of the terminal; First indication information, where the first indication information indicates that the power headroom value is determined based on the actual transmitted signal or signaling, or the first indication information indicates that the power headroom value is determined based on the reference signal or signaling; Second indication information, where the second indication information is used to indicate whether the terminal supports power back-off; The power back-off parameter of the terminal.

8. The method according to any one of claims 1 to 6, characterized in that, The first power control parameter includes at least one of the following: The identification information of the terminal; The identification information of the first target SRS; The direction information of the first target SRS; Expected received power value of the first target SRS ; The resource information of the first target SRS ; The first power adjustment factor ; The first path loss value ; First path loss reference information; First power control state adjustment value.

9. The method according to any one of claims 1 to 6, characterized in that The second power control parameter includes at least one of the following: The identification information of the terminal; The 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 direction information of the second target SRS; Power value expected to receive the second target SRS ; The resource information of the second target SRS ; Second power adjustment factor ; The second path loss value ; Second path loss reference information; Second power control state adjustment value.

10. The method according to any one of claims 1 to 6, characterized in that, The first power dynamic adjustment parameter includes at least one of the following: The identification information of the terminal; The identification information of the first target SRS; The direction information of the first target SRS; First power control adjustment state value; Indication information for activating the power dynamic adjustment signaling; Indication information for deactivating the power dynamic adjustment signaling.

11. The method according to any one of claims 1 to 6, characterized in that, The second power dynamic adjustment parameter includes at least one of the following: The identification information of the terminal; The identification information of the second target SRS, where the identification information of the second target SRS indicates the SRS for which the second power dynamic adjustment parameter is adjusted; The direction information of the second target SRS; Second power control adjustment state value; Indication information for activating the power dynamic adjustment signaling; Indication information for deactivating the power dynamic adjustment signaling.

12. The method according to any one of claims 1 to 6, characterized in that, The received power information of the first target SRS includes at least one of the following: The identification information of the terminal; The identification information of the first target SRS; The direction information of the first target SRS; The received power of the first target SRS; The quality parameter of the first target SRS; Indication information indicating that the first target SRS is not successfully received.

13. A power control method, characterized in that, Includes: The network-side device reports the target information of the terminal to the LMF entity or the location server; The method further includes at least one of the following: The network-side device receives the second power control information of the terminal determined based on the target information sent by the LMF entity or the location server; The network-side device receives the received power information of the first target SRS reported by the neighboring cell and / or the neighboring cell base station of the terminal forwarded by the LMF entity or the location server; Wherein, the target information includes at least one of a power headroom report of the terminal and first power control information of the terminal, and received power information of a first target SRS. The first power control information includes: a first power control parameter and / or a first power dynamic adjustment parameter of the terminal. The second power control information includes: a second power control parameter and / or a second power dynamic adjustment parameter. The power headroom report is a power headroom report of the terminal in one or more serving cells.

14. The method according to claim 13, wherein The information carried in the power headroom report of the terminal includes at least one of the following: Identification information of the terminal; Identification information of the first target SRS; Direction information of the first target SRS; Grouping information of the first target SRS; Power headroom value of the terminal; Maximum transmission power of the terminal; First indication information, wherein the first indication information indicates that the power headroom value is determined based on an actual transmitted signal or signaling, or the first indication information indicates that the power headroom value is determined based on a reference signal or signaling; Second indication information, wherein the second indication information is used to indicate whether the terminal supports power backoff; Power backoff parameter of the terminal.

15. The method according to claim 13, characterized in that The first power control parameter includes at least one of the following: Identification information of the terminal; Identification information of the first target SRS; Direction information of the first target SRS; Expected power value of the first target SRS ; The resource information of the first target SRS ; The first power adjustment factor ; The first path loss value ; First path loss reference information; First power control state adjustment value.

16. The method according to claim 13, wherein The received power information of the first target SRS includes at least one of the following: Identification information of the terminal; Identification information of the first target SRS; Direction information of the first target SRS; Received power of the first target SRS; Quality parameter of the first target SRS; Indication information indicating that the first target SRS is not successfully received.

17. The method according to claim 13, wherein The first power dynamic adjustment parameter includes at least one of the following: Identification information of the terminal; Identification information of the first target SRS; Direction information of the first target SRS; First power control adjustment state value; Indication information for activating a power dynamic adjustment signaling; Indication information for deactivating a power dynamic adjustment signaling.

18. According to the method of claim 13, wherein The first power control information is the first power control parameter and / or the first power dynamic adjustment parameter of the terminal in one or more serving cells.

19. The method according to any one of claims 13 to 18, characterized in that 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 base station of the terminal.

20. The method according to claim 19, wherein 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.

21. The method according to claim 13, characterized in that, After the network side device receives the second power control information and / or the received power information of the first target SRS, the method further includes at least one of the following: According to the second power control information, the network side device sends third power control information of the terminal to the terminal; 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 relevant information of the terminal, and the received power information of the first target SRS, where the relevant information of the terminal includes at least one of the following: the capability information of the terminal, the maximum power information of the terminal, and the scheduling situation of the terminal on the time - frequency resources for transmitting the first target SRS.

22. The method according to claim 21, characterized in that, The network - side device sends the third power control information of the terminal to the terminal, including: If the third power control information includes a third power dynamic adjustment parameter, the network - side device sends a downlink control information DCI command to the terminal, where the DCI command carries the third power dynamic adjustment parameter of the terminal; and / or, If the third power control information includes a third power dynamic adjustment parameter, the network - side device sends a first media access control layer control element MAC CE command to the terminal, where the first MAC CE command carries the third power dynamic adjustment parameter; and / or If the third power control information includes a third power control parameter, the network - side device sends a second MAC CE command or a radio resource control RRC command to the terminal, where the second MAC CE or the RRC command carries the third power control parameter.

23. The method according to claim 22, wherein The third power dynamic adjustment parameter includes at least one of the following: The identification information of the terminal; The 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 information is adjusted; The direction information of the third target SRS; The third power control adjustment status value; The indication information for activating the power dynamic adjustment signaling; The indication information for de - activating the power dynamic adjustment signaling.

24. The method according to any one of claims 14 to 17 and 23, characterized in that, The identification information includes at least one of the following: SRS identifier, quantity, and SRS group identifier.

25. The method according to claim 23, characterized in that, The identification information of the third target SRS is a bit string of length N, where N is a divisor of the quantity of the third target SRS.

26. The method according to any one of claims 13 to 18, characterized in that, Before the network - side device reports the target information of the terminal to the LMF entity or the location server, the method further includes: The network - side device receives the terminal capability information reported by the terminal, where the terminal capability information includes at least one of the following: whether the terminal supports reporting the power headroom report to the LMF entity or the location server, whether the terminal supports the closed - loop power control of SRS, and whether the terminal receives the power control information sent by the LMF entity or the location server.

27. The method according to any one of claims 13 to 18, characterized in that Before the network - side device reports the target information of the terminal to the LMF entity or the location server, the method further includes: The network - side device receives the target information request information, where the target information request information is used to request the target information of the terminal.

28. A power control method, characterized in that, Including: 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: the power headroom report of the terminal, the first power control information of the terminal; The terminal receives the second power control information and / or the third power control information, and adjusts the transmission power of the fourth target SRS based on the second power control information and / or the third power control information, where the second power control information comes from the LMF entity or the location server, the third power control information comes from the network-side device, the second power control information is determined by the LMF entity or the location server based on the target information of the terminal and the received power information of the first target SRS of the neighboring cell and / or the neighboring cell base station of the terminal, and the third power control information is determined by the network-side device according to the second power control information; 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 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 dynamic adjustment parameter of the terminal, and the power headroom report is the power headroom report of the terminal in one or more serving cells.

29. The method according to claim 28, wherein The information carried in the power headroom report of the terminal includes at least one of the following: The identification information of the terminal; The identification information of the first target SRS; The direction information of the first target SRS; The packet information of the first target SRS; The power headroom value of the terminal; The maximum transmission power of the terminal; The first indication information, where the first indication information indicates that the power headroom value is determined based on the actual transmitted signal or signaling, or the first indication information indicates that the power headroom is determined based on the reference signal or signaling; The second indication information, where the second indication information is used to indicate whether the terminal supports power backoff; The power backoff parameter of the terminal.

30. The method according to claim 28, characterized in that, The first power control parameter includes at least one of the following: The identification information of the terminal; The identification information of the first target SRS; The direction information of the first target SRS; The expected received power of the first target SRS ; Resource identifier of the first target SRS ; The first power adjustment factor ; The first path loss value ; The first path loss reference information; The first power control state adjustment value.

31. The method according to claim 28, wherein The second power control parameter includes at least one of the following: The identification information of the terminal; The identification information of the second target SRS, and the identification information of the second target SRS indicates the SRS for which the second power control parameter is adjusted; The direction information of the second target SRS; The expected received power of the second target SRS ; Resource identifier of the second target SRS ; Second power adjustment factor ; Second path loss value ; The second path loss reference information; The second power control state adjustment value.

32. The method according to claim 28, wherein The third power control parameter includes at least one of the following: The identification information of the terminal; The identification information of the third target SRS, and the identification information of the third target SRS indicates the SRS for which the third power control parameter is adjusted; The direction information of the third target SRS; The expected received power of the third target SRS ; The resource identifier of the third target SRS ; Third power adjustment factor ; The third loss value ; The third path loss reference information; The third power control state adjustment value.

33. The method according to claim 28, wherein, The first power dynamic adjustment parameter includes at least one of the following: The identification information of the terminal; The identification information of the first target SRS; The direction information of the first target SRS; The first power control adjustment status value; The indication information of the activation power dynamic adjustment signaling; The indication information of the deactivation power dynamic adjustment signaling.

34. The method according to claim 28, wherein The second power dynamic adjustment parameter includes at least one of the following: The identification information of the terminal; The 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 direction information of the second target SRS; The second power control adjustment status value; The indication information of the activation power dynamic adjustment signaling; The indication information of the deactivation power dynamic adjustment signaling.

35. The method according to claim 28, wherein The third power dynamic adjustment parameter includes at least one of the following: The identification information of the terminal; The 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 direction information of the third target SRS; The third power control adjustment status value; The indication information of the activation power dynamic adjustment signaling; The indication information of the deactivation power dynamic adjustment signaling.

36. The method according to any one of claims 28 to 35, characterized in that, The terminal adjusts the transmission power of the fourth target SRS, including: The terminal determines the fourth target SRS adjusted by the second power control information according to the identification information of the second target SRS included in the second power control information, and adjusts the transmission power of the fourth target SRS according to the second power control information; and / or, The terminal determines the fourth target SRS adjusted in the third power control information according to the identification information of the third target SRS included in the third control information, and adjusts the transmission power of the fourth target SRS according to the third power control information.

37. The method according to any one of claims 29 to 35, characterized in that, The identification information includes at least one of the following: SRS identifier, quantity, and SRS group identifier.

38. The method according to claim 36, wherein The identification information of the second target SRS is a bit string of length M, and M is a divisor of the quantity of the second target SRS; and / or, The identification information of the third target SRS is a bit string of length N, and N is a divisor of the quantity of the third target SRS.

39. The method according to any one of claims 28 to 35, characterized in that, 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 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: whether the terminal supports reporting the power headroom report to the LMF entity or the location server, whether the terminal supports the closed-loop power control of SRS, and whether the terminal receives the power control information sent by the LMF entity or the location server.

40. The method according to any one of claims 28 to 35, characterized in that, Before the terminal reports the target information of the terminal to the LMF entity or the location server, the method further includes: The terminal receives target information request information, where the target information request information is used to request the target information of the terminal.

41. A power control device is applied to an LMF entity or a location server, characterized in that, The device includes: A first receiving module, configured to receive target information, where the target information includes at least one of a power headroom report of a terminal, first power control information of the terminal, and received power information of a first target SRS reported by a neighboring cell and / or a neighboring cell base station of the terminal; A first transmitting module, configured to determine and transmit second power control information of the terminal based on the target information; or forward 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; Wherein, the first power control information includes: a first power control parameter of the terminal and / or a first power dynamic adjustment parameter of the terminal; the second power control information includes: a second power control parameter of the terminal and / or a second power dynamic adjustment parameter of the terminal, and the power headroom report is a power headroom report of the terminal in one or more serving cells.

42. A power control device is applied to a network-side device, characterized in that, The apparatus includes: A determining module, configured to determine target information of a terminal; A second transmitting module, configured to report the target information of the terminal to an LMF entity or a location server; A receiving module, configured to perform at least one of the following: Receive second power control information of the terminal determined based on the target information sent by the LMF entity or the location server; Receive received power information of a first target SRS reported by a neighboring cell and / or a neighboring cell base station of the terminal forwarded by the LMF entity or the location server; Wherein, the target information includes at least one of a power headroom report of the terminal and first power control information of the terminal, and received power information of a first target SRS, the first power control information includes: a first power control parameter and / or a first power dynamic adjustment parameter of the terminal, the second power control information includes: a second power control parameter and / or a second power dynamic adjustment parameter, and the power headroom report is a power headroom report of the terminal in one or more serving cells.

43. A power control device is applied to a terminal, characterized in that, The apparatus includes: A third transmitting module, configured to report the target information of the terminal to an LMF entity or a location server, where the target information includes a power headroom report of the terminal, or the target information includes a power headroom report of the terminal and first power control information of the terminal; A second receiving module, configured to receive second power control information and / or third power control information, and adjust the transmission power of a fourth target SRS based on the second power control information and / or the third power control information, where the second power control information comes from the LMF entity or the location server, the third power control information comes from a network-side device, the second power control information is determined by the LMF entity or the location server based on the target information of the terminal and received power information of a first target SRS reported by a neighboring cell and / or a neighboring cell base station of the terminal, and the third power control information is determined by the network-side device according to the second power control information; 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 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 dynamic adjustment parameter of the terminal, and the power headroom report is the power headroom report of the terminal in one or more serving cells.

44. A network-side device, characterized in that, It 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, it implements the steps of the power control method according to any one of claims 1 to 12, or implements the steps of the power control method according to any one of claims 13 to 27.

45. A terminal, characterized in that, It 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, it implements the steps of the power control method according to any one of claims 28 to 40.

46. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium. When the program or instruction is executed by the processor, it implements the power control method according to any one of claims 1 to 12, or implements the steps of the power control method according to any one of claims 13 to 27, or implements the steps of the power control method according to any one of claims 28 to 40.

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