Power control method and device and related equipment

Abstract

The invention provides a power control method and device and related equipment, and relates to the technical field of communication. The method is executed by a terminal, and comprises the following steps: receiving power control indication information sent by network side equipment; wherein the power control indication information comprises at least one of the following items: first information, and the first information is used for indicating to execute or not execute power control related to perception; second information, wherein the second information is used for indicating a candidate power adjustment parameter; the third information is used for indicating a target power adjustment parameter; and determining the uplink power of the terminal according to the power control indication information. According to the scheme, the problem that the sensing echo signal and the communication signal cannot be received at the same time is solved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a power control method, apparatus and related equipment. Background Technology

[0002] An integrated communication and sensing system refers to a system that possesses both communication and sensing capabilities through integrated design (spectrum resource sharing, integrated air interface, integrated hardware architecture, etc.), multi-point collaboration, and intelligent information interaction. The collaborative sensing aspect of this integrated communication and sensing system is achieved by constructing a collaborative sensing network based on the large-scale deployment of mobile communication networks.

[0003] However, in collaborative sensing scenarios, the intensity difference between the uplink communication signal received by the receiving node B and the sensing echo signal may be significant, which could lead to the problem that the sensing echo signal and the communication signal cannot be received simultaneously. Summary of the Invention

[0004] The purpose of this application is to provide a power control method, apparatus, and related equipment to solve the problem that sensing echo signals and communication signals cannot be received simultaneously.

[0005] To achieve the above objectives, embodiments of this application provide a power control method, executed by a terminal, comprising:

[0006] The system receives power control indication information sent by a network-side device; wherein the power control indication information includes at least one of the following: first information, which indicates whether to perform or not to perform perception-related power control; second information, which indicates candidate power adjustment parameters; and third information, which indicates target power adjustment parameters.

[0007] The uplink power of the terminal is determined based on the power control instruction information.

[0008] Optionally, determining the uplink power of the terminal based on the power control indication information includes:

[0009] The first parameter and the second parameter are determined based on the power control indication information. The first parameter is a power adjustment parameter for open-loop power control, and the second parameter is a power adjustment parameter for closed-loop power control.

[0010] The uplink power is calculated based on the first parameter and the second parameter.

[0011] Optionally, determining the first parameter based on the power control indication information includes:

[0012] When the power control indication information includes the first information and the second information, and the first information indicates the execution of perception-related power control, the third parameter among the candidate power adjustment parameters is used as the first parameter; or

[0013] When the power control indication information includes the second information and the third information, the target power adjustment parameter is used as the first parameter; wherein the target power adjustment parameter belongs to the candidate power adjustment parameter; or

[0014] If the power control indication information includes the third information, the target power adjustment parameter is used as the first parameter.

[0015] Optionally, determining the second parameter based on the power control indication information includes:

[0016] If the power control indication information includes the first information, and the first information indicates that power control related to sensing is to be performed, a transmission power control (TPC) command is obtained.

[0017] Based on the mapping relationship and TPC commands, query the second parameter; wherein, the mapping relationship includes the mapping between different TPC commands and different second parameters.

[0018] Optionally, the mapping relationship also includes the mapping between different TPC commands and different fourth parameters; wherein the fourth parameter is a power adjustment parameter used for closed-loop power control when no perception-related power control is performed.

[0019] Optionally, calculating the uplink power based on the first parameter and the second parameter includes:

[0020] The open-loop power adjustment is obtained based on the first parameter;

[0021] The closed-loop power adjustment is obtained based on the second parameter;

[0022] Obtain the maximum allowed transmit power, the power that the network-side device expects to receive, the downlink path loss, and the number of resource blocks occupied by the uplink transmission;

[0023] The uplink power is obtained based on the open-loop power adjustment, the closed-loop power adjustment, the maximum allowed transmit power, the power expected to be received by the network-side device, the downlink path loss, and the number of resource blocks occupied by the uplink transmission.

[0024] Optionally, determining the uplink power of the terminal based on the power control indication information includes:

[0025] When the power control indication information includes the first information and the second information, and the second information is a preset value, the uplink power of the terminal is determined based on the target power control strategy, which is a strategy for not performing perception-related power control.

[0026] To achieve the above objectives, embodiments of this application provide a power control method, executed by a network-side device, comprising:

[0027] Send power control indication information to the terminal; wherein the power control indication information includes at least one of the following: first information, the first information being used to indicate whether to perform or not to perform perception-related power control; second information, the second information being used to indicate candidate power adjustment parameters; and third information, the third information being used to indicate target power adjustment parameters.

[0028] Optionally,

[0029] When the power control indication information includes the first information and the second information, and the first information indicates the execution of perception-related power control, the third parameter in the candidate power adjustment parameters is the first parameter; or

[0030] When the power control indication information includes the second information and the third information, the target power adjustment parameter is the first parameter; wherein, the target power adjustment parameter belongs to the candidate power adjustment parameter; or

[0031] When the power control indication information includes the third information, the target power adjustment parameter is the first parameter;

[0032] The first parameter is a power adjustment parameter used for open-loop power control.

[0033] Optionally, the method further includes:

[0034] A TPC command is sent to the terminal; wherein the TPC command is used to query a second parameter, which is a power adjustment parameter used for closed-loop power control.

[0035] To achieve the above objectives, embodiments of this application provide a power control device, comprising:

[0036] A receiving module is configured to receive power control indication information sent by a network-side device; wherein the power control indication information includes at least one of the following: first information, the first information being used to indicate whether or not to perform perception-related power control; second information, the second information being used to indicate candidate power adjustment parameters; and third information, the third information being used to indicate target power adjustment parameters.

[0037] The first processing module is used to determine the uplink power of the terminal based on the power control instruction information.

[0038] To achieve the above objectives, embodiments of this application provide a power control device, comprising:

[0039] A first sending module is configured to send power control indication information to a terminal; wherein the power control indication information includes at least one of the following: first information, which indicates whether or not to perform perception-related power control; second information, which indicates candidate power adjustment parameters; and third information, which indicates target power adjustment parameters.

[0040] To achieve the above objectives, embodiments of this application provide a communication device, including: a transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; when the processor executes the program or instructions, it implements the power control method executed by the terminal as described above, or the power control method executed by the network-side device as described above.

[0041] To achieve the above objectives, embodiments of this application provide a readable storage medium storing a program or instructions that, when executed by a processor, implement the power control method executed by the terminal as described above, or the steps in the power control method executed by the network-side device as described above.

[0042] To achieve the above objectives, embodiments of this application provide a computer program product, including computer instructions, which, when executed by a processor, implement the power control method executed by the terminal as described above, or the steps of the power control method executed by the network-side device as described above.

[0043] The beneficial effects of the above technical solution in this application are as follows:

[0044] The method in this application embodiment determines the uplink power of the terminal by receiving at least one of the first, second, and third information sent by the network-side device. In this way, it can perform perception-related power adjustments for cooperative perception scenarios and achieve simultaneous reception of perception echo signals and communication signals. Attached Figure Description

[0045] Figure 1 A schematic diagram of the independent sensing working mode;

[0046] Figure 2 A schematic diagram of a collaborative perception work mode;

[0047] Figure 3 A schematic diagram of transmission in a collaborative sensing scenario;

[0048] Figure 4 This is a schematic diagram of the power intensity at node B;

[0049] Figure 5 This is one of the flowcharts of the power control method according to an embodiment of this application;

[0050] Figure 6 This is a second flowchart of the power control method according to an embodiment of this application;

[0051] Figure 7 This is one of the schematic diagrams of the module structure of the power control device according to an embodiment of this application;

[0052] Figure 8 This is a second schematic diagram of the module structure of the power control device according to an embodiment of this application;

[0053] Figure 9 This is a structural diagram of the terminal according to an embodiment of this application;

[0054] Figure 10 This is a structural diagram of the network-side device according to an embodiment of this application. Detailed Implementation

[0055] To make the technical problems, technical solutions and advantages of this application clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0056] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0057] In the various embodiments of this application, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0058] In addition, the terms "system" and "network" are often used interchangeably in this article.

[0059] In the embodiments provided in this application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0060] For ease of understanding, the following describes some aspects of the embodiments of this application:

[0061] I. Perception Mode

[0062] An integrated communication and sensing system refers to a system that possesses both communication and sensing capabilities through integrated design (spectrum resource sharing, integrated air interface, integrated hardware architecture, etc.), multi-point collaboration, and intelligent information interaction. Its working modes are divided into two main categories: independent sensing and collaborative sensing.

[0063] 1. Independent perception: such as Figure 1 As shown, node A sends a sensing signal and receives the target's reflected signal to obtain the characteristic parameters of the surrounding environment, thus realizing perception functions such as target detection, localization, recognition, and tracking. Its advantage lies in the fact that it does not require the assistance of other network nodes, resulting in high resource utilization; the challenge lies in the high requirements for self-interference cancellation capabilities, the involvement of hardware modifications, and the high cost of technology implementation.

[0064] 2. Collaborative perception: such as Figure 2 As shown, node A transmits and node B receives the reflected signal. Then, through inter-node information exchange and information fusion processing, environmental characteristic parameters between the transmitting and receiving nodes are obtained. Building a cooperative sensing network based on a large-scale mobile communication network has advantages such as cooperative reception and fusion processing gain, no need for self-interference deletion, no need for hardware modification, and low-cost, rapid technology deployment. However, it also has the problem of high synchronization accuracy requirements between nodes.

[0065] In a sensing-integrated system, node A sends a sensing signal, which is then scattered by the target and received by node B (A and B can be the same or different base stations / terminals). The power of the sensing signal reaching node B can be expressed as:

[0066]

[0067] Among them, P t For transmission power, G t For the transmit antenna gain, G r Let λ be the receiving antenna gain, σ be the signal wavelength, and R be the target's scattering cross-section. t and R r These represent the distances from the transmitting and receiving nodes to the target, respectively. It can be seen that the sensing and receiving power is inversely proportional to the fourth power of the target distance; the signal energy attenuation is significant, resulting in weaker echo signal energy.

[0068] In a communication system, when node A sends a communication signal to receiving node B (base station / terminal), the received power of node B can be expressed as:

[0069]

[0070] Among them, P t For transmission power, G t For the transmit antenna gain, G rLet λ be the receiving antenna gain, λ be the signal wavelength, and R be the distance between the transmitting and receiving nodes. It can be seen that the received communication power is inversely proportional to the square of the target distance; signal energy attenuation is relatively small, and the signal strength is relatively strong.

[0071] In a collaborative sensing scenario, sending node A is in the downlink symbol S. D At that time, receiving node B is in the uplink symbol S. U The diagram is as follows Figure 3 As shown. Meanwhile, the intensity difference between the uplink communication signal received by node B and the sensed echo signal is significant, which may lead to the inability to receive the sensed echo signal and the communication signal simultaneously (e.g., exceeding the dynamic range of the analog-to-digital converter (ADC). Taking 26GHz as an example, with a detection range of 500m, the power intensity at node B is illustrated using link budget, as shown in the diagram. Figure 4 (As shown).

[0072] The existing 3rd Generation Partnership Project (3GPP) protocol's uplink power control schemes, taking into account terminal power consumption and interference, include two main categories: open-loop power control and closed-loop power control. Open-loop power control refers to the user setting the transmitter power based on measured path loss and the receiver's desired received power. Closed-loop power control involves the base station comparing the actual received signal-to-noise ratio (SNR) with the target value, generating a closed-loop power control command, and feeding it back to the terminal. This is accomplished by TPC (Transmission Power Control) commands and is primarily affected by factors such as user channel fading rate and latency.

[0073] like Figure 5 As shown, a power control method according to an embodiment of this application, executed by a terminal, includes:

[0074] Step 501: Receive power control indication information sent by the network-side device; wherein the power control indication information includes at least one of the following: first information, the first information being used to indicate whether to perform or not to perform perception-related power control; second information, the second information being used to indicate candidate power adjustment parameters; and third information, the third information being used to indicate target power adjustment parameters.

[0075] Step 502: Determine the uplink power of the terminal based on the power control instruction information.

[0076] Thus, according to steps 501-502, the terminal executes the method of this application embodiment, and determines the uplink power of the terminal by receiving at least one of the first information, second information and third information sent by the network-side device. In this way, it can perform perception-related power adjustment for cooperative perception scenarios and realize the simultaneous reception of perception echo signals and communication signals.

[0077] It should be understood that, in this embodiment, the candidate power adjustment parameter indicated by the second information is a perception-related power adjustment parameter used for open-loop power control, and the target power adjustment parameter indicated by the third information is also a perception-related power adjustment parameter used for open-loop power control. That is, optionally, if the power control indication information does not include the first information but includes the second and / or third information, then perception-related power control is executed by default. Of course, if the power control indication information includes the second and / or third information, the power control indication information also needs to include the first information to indicate that the second and third information are used for perception-related power control.

[0078] In this embodiment, uplink power refers to the power of uplink communication signals, such as the power of the Physical Uplink Control Channel (PUCCH) or the power of the Physical Uplink Shared Channel (PUSCH).

[0079] Optionally, in this embodiment, determining the uplink power of the terminal based on the power control indication information includes:

[0080] The first parameter and the second parameter are determined based on the power control indication information. The first parameter is a power adjustment parameter for open-loop power control, and the second parameter is a power adjustment parameter for closed-loop power control.

[0081] The uplink power is calculated based on the first parameter and the second parameter.

[0082] In other words, when the terminal receives the power control instruction information, it first determines the first parameter and the second parameter based on the power control instruction information, and then uses the determined first parameter and the second parameter to calculate the uplink power. Therefore, for cooperative sensing scenarios, sensing-related open-loop power adjustment and closed-loop power adjustment are introduced to reduce the uplink communication signal power, allowing the uplink communication signal and the sensing echo signal to be within the dynamic range of the ADC, thus enabling the simultaneous reception of the sensing echo signal and the communication signal.

[0083] Optionally, in this embodiment, the first information is semi-statically configured by the network-side device. The first information can be understood as the PUSCH-Sensing-State field in the semi-static message. For example, the network-side semi-static configuration of PUSCH-Sensing-State ENUMERATED{0,1} occupies 1 bit and indicates the status of this power control. If PUSCH-Sensing-State = 0 or is not configured, this power control does not perform sensing-related power control; that is, this power control is unrelated to sensing, i.e., the uplink power control adopts the traditional power control scheme (target power control strategy). If PUSCH-Sensing-State = 1, this power control needs to consider the influence of relevant sensing parameters and perform sensing-related power control.

[0084] Optionally, in this embodiment, the second information is semi-statically configured by the network-side device, and the second information may indicate one or more candidate power adjustment parameters. These one or more candidate power adjustment parameters can be understood as a set of coherently perceptible optional power adjustment parameters, which helps to achieve fast and flexible uplink power based on characteristics such as the perceived target's mobility, reducing Radio Resource Control (RRC) reconfiguration. Specifically, the candidate power adjustment parameters indicated by the second information are candidate values ​​of the first parameter.

[0085] Optionally, in this embodiment, the third information is dynamically configured by the network-side device. The third information can be understood as the PUSCH-Sensing indicator field in the dynamic message. For example, it could be a newly added Downlink Control Information (DCI) format, or a modification of an existing DCI format to include the third information. Specifically, the third information indicates the target power adjustment parameter, i.e., the value of the first parameter.

[0086] It should be understood that, in this embodiment, the first parameter can be either the parameter required to calculate the open-loop power adjustment or the open-loop power adjustment itself. Similarly, the second parameter can be either the parameter required to calculate the closed-loop power adjustment or the closed-loop power adjustment itself.

[0087] Optionally, in this embodiment, determining the first parameter based on the power control indication information includes:

[0088] When the power control indication information includes the first information and the second information, and the first information indicates the execution of perception-related power control, the third parameter among the candidate power adjustment parameters is used as the first parameter; or

[0089] When the power control indication information includes the second information and the third information, the target power adjustment parameter is used as the first parameter; wherein the target power adjustment parameter belongs to the candidate power adjustment parameter; or

[0090] If the power control indication information includes the third information, the target power adjustment parameter is used as the first parameter.

[0091] Thus, in one approach, the power control indication information includes first information and second information, whereby the first information indicates the execution of perception-related power control. After receiving this power control indication information, the terminal selects a parameter (actually a parameter value) from the candidate power adjustment parameters indicated by the second information as the first parameter (the value of the first parameter). The selected parameter is the third parameter, and the third parameter has the same parameter type as the first parameter. Specifically, the third parameter is a default value among the candidate power adjustment parameters, such as the first value, the maximum value, or the minimum value; or, the third parameter is a randomly selected value from the candidate power adjustment parameters.

[0092] For example, for PUSCH power control, the terminal receives the following semi-static message:

[0093] PUSCH-PowerControl::=SEQUENCE{

[0094] tpc-Accumulation ENUMERATED{disabled}OPTIONAL,

[0095] msg3-Alpha Alpha OPTIONAL,--Need S

[0096] p0-NominalWithoutGrant INTEGER(-202..24)

[0097] PUSCH-Sensing ENUMERATED{1}OPTIONAL

[0098] P O_Sensing_PUSCH SEQUENCE{P1,P2,P3,P4}OPTIONAL ...

[0100] }

[0101] Thus, it can be seen that PUSCH-Sensing-State = 1, performing perception-related power control, and the network side semi-statically configuring four candidate first parameters P for the terminal (UE). O_Sensing_PUSCH That is, the four values ​​of the first parameter, P O_Sensing_PUSCH={P1,P2,P3,P4}. Therefore, assuming the third parameter is the first value, the terminal selects P. O_Sensing_PUSCH =P1.

[0102] Of course, if the power control indication information does not include the first information but only the second information, then after the terminal receives the power control indication information, it will by default execute the power control related to perception and select one parameter from the candidate power adjustment parameters indicated by the second information as the first parameter.

[0103] In one implementation, the power control indication information includes second information and third information. In this case, by default, power control related to perception is executed. After the terminal receives the power control indication information, the first parameter (the value of the first parameter) is specified from the candidate power adjustment parameters indicated by the second information by the indication of the third information. The parameter type of the target power adjustment parameter indicated by the third information is the same as that of the first parameter.

[0104] For example, for PUSCH power control, the network side uses a semi-static configuration of four candidate first parameters P. O_Sensing_PUSCH That is, the four values ​​of the first parameter, P O_Sensing_PUSCH ={P1,P2,P3,P4}. If the PUSCH-Sensing indicator in the DCI sent by the network side is '11', that is, the last value in the candidate power adjustment parameters dynamically configured by the network side is the value of the first parameter, then P O_Sensing_PUSCH =P4.

[0105] Of course, in this method, the power control indication information may also include the first information.

[0106] In another approach, the power control indication information includes third information. In this case, after receiving the power control indication information, the terminal uses the value indicated by the third information as the value of the first parameter. For example, for PUSCH power control, the terminal receives a DCI sent by the network-side device, and the value carried by the PUSCH-Sensing indicator of the DCI is the value of the first parameter.

[0107] Of course, in this method, the power control indication information may also include the first information and the second information, and the value indicated by the third information may or may not belong to the candidate power adjustment parameters.

[0108] Optionally, in this embodiment, if the power control indication information only includes the first information, the first parameter can be determined to be the default value based on the default value.

[0109] Optionally, in this embodiment, determining the second parameter based on the power control indication information includes:

[0110] If the power control indication information includes the first information, and the first information indicates that power control related to sensing is to be performed, a transmission power control (TPC) command is obtained.

[0111] Based on the mapping relationship and TPC commands, query the second parameter; wherein, the mapping relationship includes the mapping between different TPC commands and different second parameters.

[0112] That is, the power control indication information includes first information, and when the first information indicates that power control related to perception is performed, the terminal will obtain the TPC command and then query the second parameter based on the mapping between different TPC commands and different second parameters.

[0113] For example, for PUSCH power control, the mapping between different TPC commands and different second parameters is shown in Table 1 below:

[0114] Table 1

[0115]

[0116] Wherein, Accumulatedδ PUSCH,b,f,c and Absoluteδ PUSCH,b,f,c Both are second parameters, and different values ​​of the TPCCommand Field indicate different TPC commands.

[0117] Of course, for different TPC commands, there are also different mapping relationships between TPC commands and traditional closed-loop power control parameters. Thus, when the first information indicates that power control related to sensing should not be executed, it is still necessary to query the traditional closed-loop power control parameters based on this mapping in order to execute the traditional power control scheme.

[0118] Optionally, the mapping relationship also includes the mapping between different TPC commands and different fourth parameters; wherein the fourth parameter is a power adjustment parameter used for closed-loop power control when no perception-related power control is performed.

[0119] That is, in one implementation, the mapping association list includes both different second parameters mapped to each TPC command and different fourth parameters mapped to each TPC command. This list is an extension of the traditional TPC command filed table; for example, for PUSCH power control, it is shown in Table 2 below:

[0120] Table 2

[0121]

[0122] In this context, to distinguish whether perception-related power control is performed, Accumulatedδ PUSCH,b,f,cforcommunication and Absoluteδ PUSCH,b,f,c For communication, all parameters are the fourth parameter, Accumulatedδ PUSCH,b,f,c for ISAC and Absoluteδ PUSCH,b,f,c For ISAC, all are the second parameter.

[0123] Thus, in this embodiment, if the terminal receives PUSCH-Sensing-State = 0 or not configured, and the network side indicates TPC Command Field = "01", then it queries the value of the fourth parameter in Table 2 to determine the uplink power; if it receives PUSCH-Sensing-State = 1, and the network side indicates TPC Command Field = "01", then it queries the value of the second parameter in Table 2 to determine the uplink power.

[0124] Alternatively, in this embodiment, calculating the uplink power based on the first parameter and the second parameter includes:

[0125] The open-loop power adjustment is obtained based on the first parameter;

[0126] The closed-loop power adjustment is obtained based on the second parameter;

[0127] Obtain the maximum allowed transmit power, the power that the network-side device expects to receive, the downlink path loss, and the number of resource blocks occupied by the uplink transmission;

[0128] The uplink power is obtained based on the open-loop power adjustment, the closed-loop power adjustment, the maximum allowed transmit power, the power expected to be received by the network-side device, the downlink path loss, and the number of resource blocks occupied by the uplink transmission.

[0129] That is, after obtaining the open-loop power adjustment amount and the closed-loop power adjustment amount from the first parameter and the second parameter respectively, it is also necessary to obtain the maximum allowable transmit power, the power expected to be received by the network-side equipment, the downlink path loss, and the number of resource blocks (RBs) occupied by uplink transmission, and calculate the uplink power together.

[0130] In one implementation, PUSCH power control is achieved through the formula...

[0131] Calculate the uplink power P of the PUSCH PUSCH,b,f,c (i,j,q d ,l); where P CMAX,f,c (i) is the maximum allowable transmit power, P O_PUSCH,b,f,c (j) is the power that the network-side device expects to receive, PO_Sensing_PUSCH,b,f,c (j) is the open-loop power regulation. It is the number of RBs occupied by PUSCH, α b,f,c (j) is the path loss compensation factor, PL b,f,c (q d ) is the downlink path loss value, Δ TF,b,f,c (i) is the power offset of the current MCS relative to the reference MCS, f b,f,c (i,l) represents the closed-loop power adjustment, where i is the transmission timing, j is the parameter set configuration index (related to the service type), and q... d is the reference signal index for estimating downlink path loss, l is the power control adjustment state, μ is the subcarrier spacing parameter, b is the BWP index, f is the carrier index, and c is the serving cell index.

[0132] Among them, PL b,f,c (q d () is the downlink path loss value estimated based on SSB or CSI-RS. O_Sensing_PUSCH,b,f,c (j)=P O_NOMINAL_PUSCH,f,c (j)+P O_UE_PUSCH,b,f,c (j)+P O_Sensing_PUSCH,f,c (j), P O_NOMINAL_PUSCH,f,c (j) are cell characteristic parameters, determined based on inter-cell interference characteristics; P O_UE_PUSCH,b,f,c (j) is a user characteristic parameter, determined based on the user's location within the cell; P O_Sensing_PUSCH,f,c (j) is the first parameter.

[0133] Of course, the first parameter, namely the open-loop power adjustment P, can also be determined directly from the power control indication information. O_Sensing_PUSCH,b,f,c (j), such as the third information indicating the target power adjustment parameter, i.e., P O_Sensing_PUSCH,b,f,c (j).

[0134] Among them, f b,f,c (i,l) is determined by the second parameter queried by the TPC command. For example, if TPC Command Field = "01", the second parameter Accumulatedδ is queried from Table 1. PUSCH,b,f,c =-7, Absoluteδ PUSCH,b,f,c =-13, then f b,f,c (i,l) can be equal to Absoluteδ PUSCH,b,f,c = -13.

[0135] In another implementation, PUCCH power control is achieved through the formula...

[0136]

[0137] Calculate the uplink power P of the PUCCH. PUCCH,b,f,c(i,q u ,q d ,l); where P CMAX,f,c (i) is the maximum allowable transmit power, P O_PUCCH,b,f,c (q u P is the power that the network-side device expects to receive. O_Sensing_PUCCH,b,f,c (q u ) is the open-loop power regulation. It is the number of RBs occupied by PUCCH, PL b,f,c (q d ) is the downlink path loss value, Δ TF,b,f,c (i) is the power offset of the current MCS relative to the reference MCS, Δ F_PUCCH (F) is the influence factor of different transmission formats on transmission power, g b,f,c (i,l) is the closed-loop power adjustment value, i is the transmission timing, and q is the transmission timing value. u It is the power indication index that the network-side device expects to receive, q d is the reference signal index for estimating downlink path loss, l is the power control adjustment state, μ is the subcarrier spacing parameter, b is the BWP index, f is the carrier index, and c is the serving cell index.

[0138] Among them, g b,f,c (i,l) is determined by the second parameter queried by the TPC command.

[0139] Alternatively, in this embodiment, determining the uplink power of the terminal based on the power control indication information includes:

[0140] When the power control indication information includes the first information and the second information, and the second information is a preset value, the uplink power of the terminal is determined based on the target power control strategy, which is a strategy for not performing perception-related power control.

[0141] Here, the target power control strategy is the traditional power control scheme described above. That is, if the power control indication information includes the first information and the second information, and the second information is a preset value, such as PUSCH-Sensing ENUMERATED = 0, regardless of whether the first information indicates that sensing-related power control is performed or not, the traditional power control scheme is used to determine the uplink power.

[0142] In summary, the method of this application introduces sensing-related open-loop power adjustment and closed-loop power adjustment, which solves the problems of insufficient uplink communication signal reception (exceeding the ADC range) or reduced resource utilization caused by orthogonal scheduling of uplink communication and sensing resources in cooperative sensing mode. It can realize simultaneous reception of sensing signals and communication signals, improve the resource utilization of the sensing system, and minimize the impact of sensing overhead on the existing system.

[0143] like Figure 6 As shown, a power control method according to an embodiment of this application is executed by a network-side device, including:

[0144] Step 601: Send power control indication information to the terminal; wherein the power control indication information includes at least one of the following: first information, the first information being used to indicate whether to perform or not to perform perception-related power control; second information, the second information being used to indicate candidate power adjustment parameters; and third information, the third information being used to indicate target power adjustment parameters.

[0145] In this way, the network-side device can notify the terminal of at least one of the first, second, and third information, enabling the terminal to determine the uplink power. Thus, for cooperative sensing scenarios, sensing-related power adjustments are performed to achieve simultaneous reception of sensing echo signals and communication signals.

[0146] Optionally, when the power control indication information includes the first information and the second information, and the first information indicates the execution of perception-related power control, the third parameter in the candidate power adjustment parameters is the first parameter; or

[0147] When the power control indication information includes the second information and the third information, the target power adjustment parameter is the first parameter; wherein, the target power adjustment parameter belongs to the candidate power adjustment parameter; or

[0148] When the power control indication information includes the third information, the target power adjustment parameter is the first parameter;

[0149] The first parameter is a power adjustment parameter used for open-loop power control.

[0150] Optionally, the method further includes:

[0151] A TPC command is sent to the terminal; wherein the TPC command is used to query a second parameter, which is a power adjustment parameter used for closed-loop power control.

[0152] It should be noted that this method is implemented in conjunction with the method executed by the terminal described above. The implementation of the power control method embodiment executed by the terminal described above is applicable to this method and can achieve the same technical effect.

[0153] like Figure 7 As shown, a power control device according to an embodiment of this application includes:

[0154] The receiving module 710 is configured to receive power control indication information sent by a network-side device; wherein the power control indication information includes at least one of the following: first information, the first information being used to indicate whether to perform or not to perform sensing-related power control; second information, the second information being used to indicate candidate power adjustment parameters; and third information, the third information being used to indicate target power adjustment parameters.

[0155] The first processing module 720 is used to determine the uplink power of the terminal based on the power control instruction information.

[0156] Optionally, the first processing module includes:

[0157] The first processing unit is configured to determine a first parameter and a second parameter based on the power control indication information, wherein the first parameter is a power adjustment parameter for open-loop power control and the second parameter is a power adjustment parameter for closed-loop power control.

[0158] The second processing unit is used to calculate the uplink power based on the first parameter and the second parameter.

[0159] Optionally, the first processing unit is further configured to:

[0160] When the power control indication information includes the first information and the second information, and the first information indicates the execution of perception-related power control, the third parameter among the candidate power adjustment parameters is used as the first parameter; or

[0161] When the power control indication information includes the second information and the third information, the target power adjustment parameter is used as the first parameter; wherein the target power adjustment parameter belongs to the candidate power adjustment parameter; or

[0162] If the power control indication information includes the third information, the target power adjustment parameter is used as the first parameter.

[0163] Optionally, the first processing unit is further configured to:

[0164] If the power control indication information includes the first information, and the first information indicates that power control related to sensing is to be performed, a transmission power control (TPC) command is obtained.

[0165] Based on the mapping relationship and TPC commands, query the second parameter; wherein, the mapping relationship includes the mapping between different TPC commands and different second parameters.

[0166] Optionally, the mapping relationship also includes the mapping between different TPC commands and different fourth parameters; wherein the fourth parameter is a power adjustment parameter used for closed-loop power control when no perception-related power control is performed.

[0167] Optionally, the second processing unit is further configured to:

[0168] The open-loop power adjustment is obtained based on the first parameter;

[0169] The closed-loop power adjustment is obtained based on the second parameter;

[0170] Obtain the maximum allowed transmit power, the power that the network-side device expects to receive, the downlink path loss, and the number of resource blocks occupied by the uplink transmission;

[0171] The uplink power is obtained based on the open-loop power adjustment, the closed-loop power adjustment, the maximum allowed transmit power, the power expected to be received by the network-side device, the downlink path loss, and the number of resource blocks occupied by the uplink transmission.

[0172] Optionally, the first processing module is further configured to:

[0173] When the power control indication information includes the first information and the second information, and the second information is a preset value, the uplink power of the terminal is determined based on the target power control strategy, which is a strategy for not performing perception-related power control.

[0174] The device determines the uplink power of the terminal by receiving at least one of the first, second, and third information sent by the network-side device. In this way, it can perform perception-related power adjustments for cooperative perception scenarios and achieve simultaneous reception of perception echo signals and communication signals.

[0175] It should be noted that this device is an application of the power control method executed by the terminal described above. The implementation of the above method embodiment is applicable to this device and can achieve the same technical effect.

[0176] like Figure 8 As shown, a power control device according to an embodiment of this application includes:

[0177] The first sending module 810 is used to send power control indication information to the terminal; wherein the power control indication information includes at least one of the following: first information, which is used to indicate whether to perform or not to perform perception-related power control; second information, which is used to indicate candidate power adjustment parameters; and third information, which is used to indicate target power adjustment parameters.

[0178] Optionally,

[0179] When the power control indication information includes the first information and the second information, and the first information indicates the execution of perception-related power control, the third parameter in the candidate power adjustment parameters is the first parameter; or

[0180] When the power control indication information includes the second information and the third information, the target power adjustment parameter is the first parameter; wherein, the target power adjustment parameter belongs to the candidate power adjustment parameter; or

[0181] When the power control indication information includes the third information, the target power adjustment parameter is the first parameter;

[0182] The first parameter is a power adjustment parameter used for open-loop power control.

[0183] Optionally, the device further includes:

[0184] The second sending module is used to send a TPC command to the terminal; wherein the TPC command is used to query a second parameter, which is a power adjustment parameter used for closed-loop power control.

[0185] The device can notify the terminal of at least one of the first, second, and third information, enabling the terminal to determine the uplink power. In this way, for cooperative sensing scenarios, it can perform sensing-related power adjustments to achieve simultaneous reception of sensing echo signals and communication signals.

[0186] It should be noted that this device applies the power control method executed by the network-side device described above. The implementation of the above method embodiment is applicable to this device and can achieve the same technical effect.

[0187] A communication device according to an embodiment of this application includes: a transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; when the processor executes the program or instructions, it implements the power control method executed by the terminal as described above, or the power control method executed by the network-side device as described above.

[0188] Optionally, in one embodiment of this application, the communication device is a terminal, such as... Figure 9 As shown, it includes a transceiver 910, a processor 900, a memory 920, and a program or instructions stored in the memory 920 and executable on the processor 900; when the processor 900 executes the program or instructions, it implements the above-mentioned power control method.

[0189] The transceiver 910 is used to receive and send data under the control of the processor 900.

[0190] Among them, Figure 9 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 900 and memory represented by memory 920 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 910 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, user interface 930 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0191] The processor 900 is responsible for managing the bus architecture and general processing, while the memory 920 can store the data used by the processor 900 during operation.

[0192] Optionally, in another embodiment of this application, the communication device is a network-side device, such as... Figure 10 As shown, it includes a transceiver 1010, a processor 1000, a memory 1020, and a program or instructions stored in the memory 1020 and executable on the processor 1000; when the processor 1000 executes the program or instructions, it implements the above-mentioned power control method.

[0193] The transceiver 1010 is used to receive and send data under the control of the processor 1000.

[0194] Among them, Figure 10In this context, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 1000) and memory (memory 1020). The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1010 may be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 during operation.

[0195] An embodiment of this application provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the steps in the power control method described above and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0196] The processor mentioned above is the processor in the communication device 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.

[0197] This application also provides a computer program product, including computer instructions. When executed by a processor, the computer instructions implement the various processes of the above-described power control method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0198] It should be further noted that the terminals described in this specification include, but are not limited to, smartphones, tablets, etc., and many of the functional components described are referred to as modules in order to emphasize the independence of their implementation.

[0199] In this embodiment, the module can be implemented in software so that it can be executed by various types of processors. For example, an identified executable code module may include one or more physical or logical blocks of computer instructions, which may be constructed as objects, procedures, or functions. Nevertheless, the executable code of the identified module does not need to be physically located together, but may include different instructions stored in different bits, which, when logically combined, constitute the module and achieve the module's intended purpose.

[0200] In practice, an executable code module can be a single instruction or many instructions, and can even be distributed across multiple different code segments, different programs, and across multiple memory devices. Similarly, operational data can be identified within the module and can be implemented in any suitable form and organized within any suitable type of data structure. This operational data can be collected as a single dataset or distributed across different locations (including different storage devices), and can exist, at least in part, solely as electronic signals within the system or network.

[0201] When a module can be implemented using software, considering the current level of hardware technology, modules that can be implemented in software can be implemented using hardware circuits by those skilled in the art to achieve the corresponding functions, without considering cost. These hardware circuits include conventional very-large-scale integrated circuits (VLSI) or gate arrays, as well as existing semiconductors such as logic chips and transistors, or other discrete components. Modules can also be implemented using programmable hardware devices, such as field-programmable gate arrays, programmable array logic, and programmable logic devices.

[0202] The exemplary embodiments described above are with reference to the accompanying drawings. Many different forms and embodiments are feasible without departing from the spirit and teachings of this application. Therefore, this application should not be construed as limiting the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided to make this application complete and convey the scope of this application to those skilled in the art. In these drawings, component dimensions and relative dimensions may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, unless clearly indicated otherwise, the singular forms “a,” “an,” and “the” are intended to include all such forms. It will be further understood that the terms “comprising” and / or “including”, when used in this specification, indicate the presence of the stated features, integers, steps, operations, components, and / or elements, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, and / or groups thereof. Unless otherwise indicated, when stated, a range of values ​​includes the upper and lower limits of the range and any subranges in between.

[0203] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A power control method, characterized in that, Executed by the terminal, including: The system receives power control indication information sent by a network-side device; wherein the power control indication information includes at least one of the following: first information, which indicates whether to perform or not to perform perception-related power control; second information, which indicates candidate power adjustment parameters; and third information, which indicates target power adjustment parameters. The uplink power of the terminal is determined based on the power control instruction information.

2. The method according to claim 1, characterized in that, Determining the uplink power of the terminal based on the power control indication information includes: The first parameter and the second parameter are determined based on the power control indication information. The first parameter is a power adjustment parameter for open-loop power control, and the second parameter is a power adjustment parameter for closed-loop power control. The uplink power is calculated based on the first parameter and the second parameter.

3. The method according to claim 2, characterized in that, The first parameter is determined based on the power control indication information, including: When the power control indication information includes the first information and the second information, and the first information indicates the execution of perception-related power control, the third parameter among the candidate power adjustment parameters is used as the first parameter; or When the power control indication information includes the second information and the third information, the target power adjustment parameter is used as the first parameter; wherein the target power adjustment parameter belongs to the candidate power adjustment parameter; or If the power control indication information includes the third information, the target power adjustment parameter is used as the first parameter.

4. The method according to claim 2, characterized in that, The second parameter is determined based on the power control indication information, including: If the power control indication information includes the first information, and the first information indicates that power control related to sensing is to be performed, a transmission power control (TPC) command is obtained. Based on the mapping relationship and TPC commands, query the second parameter; wherein, the mapping relationship includes the mapping between different TPC commands and different second parameters.

5. The method according to claim 4, characterized in that, The mapping relationship also includes the mapping between different TPC commands and different fourth parameters; wherein, the fourth parameter is the power adjustment parameter used for closed-loop power control when no perception-related power control is performed.

6. The method according to claim 2, characterized in that, Calculating the uplink power based on the first parameter and the second parameter includes: The open-loop power adjustment is obtained based on the first parameter; The closed-loop power adjustment is obtained based on the second parameter; Obtain the maximum allowed transmit power, the power that the network-side device expects to receive, the downlink path loss, and the number of resource blocks occupied by the uplink transmission; The uplink power is obtained based on the open-loop power adjustment, the closed-loop power adjustment, the maximum allowed transmit power, the power expected to be received by the network-side device, the downlink path loss, and the number of resource blocks occupied by the uplink transmission.

7. The method according to claim 1, characterized in that, Determining the uplink power of the terminal based on the power control indication information includes: When the power control indication information includes the first information and the second information, and the second information is a preset value, the uplink power of the terminal is determined based on the target power control strategy, which is a strategy for not performing perception-related power control.

8. A power control method, characterized in that, Performed by network-side devices, including: Send power control indication information to the terminal; wherein the power control indication information includes at least one of the following: first information, the first information being used to indicate whether to perform or not to perform perception-related power control; second information, the second information being used to indicate candidate power adjustment parameters; and third information, the third information being used to indicate target power adjustment parameters.

9. The method according to claim 8, characterized in that, When the power control indication information includes the first information and the second information, and the first information indicates the execution of perception-related power control, the third parameter in the candidate power adjustment parameters is the first parameter; or When the power control indication information includes the second information and the third information, the target power adjustment parameter is the first parameter; wherein, the target power adjustment parameter belongs to the candidate power adjustment parameter; or When the power control indication information includes the third information, the target power adjustment parameter is the first parameter; The first parameter is a power adjustment parameter used for open-loop power control.

10. The method according to claim 8, characterized in that, Also includes: A TPC command is sent to the terminal; wherein the TPC command is used to query a second parameter, which is a power adjustment parameter used for closed-loop power control.

11. A power control device, characterized in that, include: A receiving module is configured to receive power control indication information sent by a network-side device; wherein the power control indication information includes at least one of the following: first information, the first information being used to indicate whether or not to perform perception-related power control; second information, the second information being used to indicate candidate power adjustment parameters; and third information, the third information being used to indicate target power adjustment parameters. The first processing module is used to determine the uplink power of the terminal based on the power control instruction information.

12. A power control device, characterized in that, include: A first sending module is configured to send power control indication information to a terminal; wherein the power control indication information includes at least one of the following: first information, which indicates whether or not to perform perception-related power control; second information, which indicates candidate power adjustment parameters; and third information, which indicates target power adjustment parameters.

13. A communication device, comprising: A transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; characterized in that, when the processor executes the program or instructions, it implements the power control method as described in any one of claims 1-7, or the power control method as described in any one of claims 8-10.

14. A readable storage medium having a program or instructions stored thereon, characterized in that, When the program or instructions are executed by the processor, they implement the power control method as described in any one of claims 1-7, or the steps in the power control method as described in any one of claims 8-10.

15. A computer program product, characterized in that, Includes computer instructions, which, when executed by a processor, implement the power control method as described in any one of claims 1-7, or the steps of the power control method as described in any one of claims 8-10.

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