Power control method and device and storage medium

Abstract

The embodiment of the invention provides a power control method and device and a storage medium, and relates to the technical field of communication. A terminal device receives first information sent by a main network device and used for indicating a power control offset parameter value for an uplink signal of an auxiliary network device, and according to the power control offset parameter value, the terminal device determines the sending power of the uplink signal of the auxiliary network device which does not support downlink signal sending.

Description

Power control method, device and storage medium

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on February 8, 2024, with application number 202410178078.6 and application name “Power Control Method, Device and Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a power control method, device, and storage medium. Background Art

[0003] In wireless communications, as the frequency used for signal transmission increases, the signal coverage range decreases. In particular, limited uplink signal coverage is a major issue due to the limited transmit power of terminal devices. To enhance uplink signal coverage, one solution is to have the network deploy more sites, but this approach carries high deployment costs. To reduce deployment costs, some sites on the network can support fewer functions. In some scenarios, macro base stations can support both downlink signal transmission and uplink reception. To enhance uplink signal coverage, micro base stations that only support uplink reception can be deployed, thus saving deployment costs.

[0004] Under the above deployment architecture, the micro base station cannot send downlink signals, and the terminal device cannot receive the reference signal from the micro base station, so the path loss between the terminal device and the micro base station cannot be determined.

[0005] Therefore, how to determine the transmission power of the uplink signal is an urgent problem to be solved. Summary of the Invention

[0006] Embodiments of the present application provide a power control method, device, and storage medium to determine the transmit power of an uplink signal for a secondary network device that supports uplink signal reception.

[0007] In a first aspect, embodiments of the present application provide a power control method, performed by a terminal device, comprising: receiving first information from a primary network device, the first information being used to indicate a power control offset parameter value for an uplink signal of a secondary network device, wherein the primary network device supports receiving uplink signals from the terminal device and transmitting downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device; and determining, based on the power control offset parameter value, a transmit power for the uplink signal of the secondary network device. In other words, the transmit power for the uplink signal of the secondary network device is determined using the power control offset parameter value for the uplink signal of the secondary network device indicated by the primary network device.

[0008] In an optional embodiment of the first aspect, the power control offset parameter value includes an offset value for a path loss amount of an uplink signal of the secondary network device, and / or an offset value for a path loss compensation factor of the uplink signal of the secondary network device. That is, the power control offset parameter value includes an offset value for a path loss amount of an uplink signal of the secondary network device, or the power control offset parameter value includes an offset value for a path loss compensation factor of the uplink signal of the secondary network device, or the power control offset parameter value includes an offset value for a path loss amount of an uplink signal of the secondary network device, and an offset value for a path loss compensation factor of the uplink signal of the secondary network device.

[0009] In an optional embodiment of the first aspect, the transmission power of the uplink signal for the secondary network device is determined according to the power control offset parameter value, including: determining a second path loss amount related to the transmission power of the uplink signal for the secondary network device according to the offset value of the path loss amount of the uplink signal for the secondary network device and the first path loss amount; or, determining a second path loss compensation factor related to the transmission power of the uplink signal for the secondary network device according to the offset value of the path loss compensation factor for the uplink signal of the secondary network device and the first path loss compensation factor; determining the transmission power of the uplink signal for the secondary network device according to the second path loss amount and / or the second path loss compensation factor; wherein the first path loss amount is the path loss amount for the primary network device, and the first path loss compensation factor is the path loss compensation factor configured by the primary network device.

[0010] In an optional embodiment of the first aspect, before determining the transmit power of the uplink signal for the secondary network device based on the power control offset parameter value, the method further includes: receiving second information from the primary network device, the second information being used to indicate application of the power control offset parameter value. That is, after receiving information configured by the primary network device to indicate the power control offset parameter value for the uplink signal for the secondary network device, the terminal device, upon further receiving information indicating application of the power control offset parameter value, applies the power control offset parameter value to determine the transmit power of the uplink signal for the secondary network device.

[0011] In an optional embodiment of the first aspect, the method further includes: receiving third information from the master network device, the third information being used to activate one or more power control offset parameter values ​​among a plurality of power control offset parameter values ​​configured by the master network device for the terminal device. In other words, the plurality of power control offset parameter values ​​configured by the master network device for the terminal device can only be applied when further activation is required.

[0012] In an optional embodiment of the first aspect, fourth information is received from the main network device, and the fourth information is used to indicate the deactivation of one or more power control offset parameter values ​​among the multiple power control offset parameter values ​​configured by the main network device for the terminal device, that is, when there is no need to determine the transmission power of the uplink signal for the auxiliary network device, the power control offset parameter value can be deactivated.

[0013] In an optional embodiment of the first aspect, fifth information is received from the primary network device, the fifth information being used to indicate a time range for applying the power control offset parameter value; and in response to the fifth information, the transmit power of an uplink signal for the secondary network device is determined based on the power control offset parameter value within the time range. In other words, the transmit power of the uplink signal for the secondary network device may be determined based on the power control offset parameter value only within the time range indicated by the primary network device.

[0014] In an optional embodiment of the first aspect, sixth information is received from the main network device, and the sixth information is used to indicate a transmission status indicator; wherein the transmission status indicator includes a first transmission status indicator, and / or a second transmission status indicator, a power control offset parameter value associated with the first transmission status indicator, and / or a power control offset parameter value associated with the second transmission status indicator.

[0015] In an optional embodiment of the first aspect, the first transmission status indicator and the second transmission status indicator each correspond to an uplink signal, and determining the transmit power of the uplink signal for the secondary network device based on a power control offset parameter value includes: determining the transmit power of the uplink signal for the secondary network device based on the power control offset parameter value, where the uplink signal is the uplink signal corresponding to the transmission status indicator associated with the power control offset parameter value. In other words, the transmission status indicator may be associated with the power control offset parameter value, and the transmit power of the uplink signal for the secondary network device may be further determined based on the power control offset parameter value.

[0016] In an optional embodiment of the first aspect, the transmission status indicator is associated with a first preset index value, and the transmission power of the uplink signal for the auxiliary network device is determined according to the power control offset parameter value, including: if the second preset index value associated with the power control offset parameter value is the same as the first preset index value, then the transmission power of the uplink signal for the auxiliary network device is determined according to the power control offset parameter value.

[0017] In an optional embodiment of the first aspect, a power control offset parameter value is associated with a preset closed-loop index, and determining the transmit power of an uplink signal for a secondary network device based on the power control offset parameter value includes: obtaining a power control command; and if the power control command is associated with the preset closed-loop index, determining the transmit power of the uplink signal for the secondary network device based on the power control offset parameter value. In other words, when the power control command and the power control offset parameter value are associated with the same closed-loop index, the transmit power of the uplink signal for the secondary network device can be determined based on the power control offset parameter value.

[0018] In a second aspect, an embodiment of the present application provides a power control method, which is executed by a primary network device, including: generating first information, which is used to indicate a power control offset parameter value for an uplink signal of a secondary network device, and the power control offset parameter value is used to determine the transmission power of the uplink signal of the secondary network device; and sending the first information.

[0019] In an optional embodiment of the second aspect, the power control offset parameter value includes an offset value of a path loss amount for an uplink signal of the secondary network device, and / or an offset value of a path loss compensation factor for an uplink signal of the secondary network device.

[0020] In an optional embodiment of the second aspect, the method further includes: sending second information, where the second information is used to indicate the application of the power control offset parameter value.

[0021] In an optional embodiment of the second aspect, the method further includes: sending third information, where the third information is used to activate one or more power control offset parameter values ​​among multiple power control offset parameter values ​​configured by the master network device for the terminal device.

[0022] In an optional embodiment of the second aspect, the method further includes: sending fourth information, where the fourth information is used to indicate the deactivation of one or more power control offset parameter values ​​among the multiple power control offset parameter values ​​configured by the main network device for the terminal device.

[0023] In an optional embodiment of the second aspect, the method further includes: sending fifth information, where the fifth information is used to indicate a time range for applying the power control offset parameter value.

[0024] In an optional embodiment of the second aspect, the method further includes: sending sixth information, which is used to indicate a transmission status indicator; wherein the transmission status indicator includes a first transmission status indicator, and / or a second transmission status indicator, a power control offset parameter value associated with the first transmission status indicator, and / or a power control offset parameter value associated with the second transmission status indicator.

[0025] In an optional embodiment of the second aspect, the transmission status indicator is associated with a first preset index value, and the power control offset parameter value is associated with a second preset index value.

[0026] In an optional embodiment of the second aspect, the power control offset parameter value is associated with a preset closed-loop index, and the method further includes: sending a power control command, where the power control command is associated with the preset closed-loop index.

[0027] In a third aspect, an embodiment of the present application provides a terminal device, comprising: a transceiver unit, which is used to receive first information from a primary network device, and the first information is used to indicate a power control offset parameter value for an uplink signal of a secondary network device, wherein the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device; and a processing unit, which is used to determine the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0028] In an optional embodiment of the third aspect, the power control offset parameter value includes an offset value of a path loss amount for an uplink signal of the secondary network device, and / or an offset value of a path loss compensation factor for an uplink signal of the secondary network device.

[0029] In an optional embodiment of the third aspect, the processing unit is specifically used to: determine a second path loss amount related to the transmit power of the uplink signal of the auxiliary network device based on an offset value of the path loss amount of the uplink signal of the auxiliary network device and the first path loss amount; or, determine a second path loss compensation factor related to the transmit power of the uplink signal of the auxiliary network device based on an offset value of the path loss compensation factor of the uplink signal of the auxiliary network device and the first path loss compensation factor; determine the transmit power of the uplink signal of the auxiliary network device based on the second path loss amount and / or the second path loss compensation factor; wherein the first path loss amount is the path loss amount for the main network device, and the first path loss compensation factor is the path loss compensation factor configured by the main network device.

[0030] In an optional embodiment of the third aspect, the transceiver unit is further configured to receive second information from the primary network device, where the second information is used to indicate an application power control offset parameter value.

[0031] In an optional embodiment of the third aspect, the transceiver unit is further used to receive third information from the main network device, where the third information is used to activate one or more power control offset parameter values ​​among multiple power control offset parameter values ​​configured by the main network device for the terminal device.

[0032] In an optional embodiment of the third aspect, the transceiver unit is further configured to receive fourth information from the master network device, the fourth information being used to indicate deactivation of one or more power control offset parameter values ​​among multiple power control offset parameter values ​​configured by the master network device for the terminal device.

[0033] In an optional embodiment of the third aspect, the transceiver unit is further used to receive fifth information from the primary network device, where the fifth information is used to indicate a time range for applying the power control offset parameter value; the processing unit is further used to determine, in response to the fifth information, the transmission power of the uplink signal for the secondary network device according to the power control offset parameter value within the time range.

[0034] In an optional embodiment of the third aspect, the transceiver unit is further used to receive sixth information from the main network device, and the sixth information is used to indicate a transmission status indicator; wherein the transmission status indicator includes a first transmission status indicator, and / or a second transmission status indicator, a power control offset parameter value associated with the first transmission status indicator, and / or a power control offset parameter value associated with the second transmission status indicator.

[0035] In an optional embodiment of the third aspect, the first transmission status indicator and the second transmission status indicator correspond to an uplink signal respectively, and the processing unit is also used to determine the transmission power of the uplink signal for the auxiliary network device based on the power control offset parameter value, and the uplink signal is an uplink signal corresponding to the transmission status indicator of the associated power control offset parameter value.

[0036] In an optional embodiment of the third aspect, the transmission status indicator is associated with a first preset index value, and the processing unit is also used to determine the transmission power of the uplink signal for the auxiliary network device according to the power control offset parameter value if the second preset index value associated with the power control offset parameter value is the same as the first preset index value.

[0037] In an optional embodiment of the third aspect, the power control offset parameter value is associated with a preset closed-loop index, and the transceiver unit is also used to receive a power control command; the processing unit is also used to determine the transmission power of the uplink signal for the auxiliary network device according to the power control offset parameter value if the power control command is associated with a preset closed-loop index.

[0038] In a fourth aspect, an embodiment of the present application provides a network device, including a transceiver unit, which is used to generate first information, wherein the first information is used to indicate a power control offset parameter value for an uplink signal of a secondary network device, and the power control offset parameter value is used to determine the transmission power of the uplink signal of the secondary network device; and send the first information.

[0039] In an optional embodiment of the fourth aspect, the power control offset parameter value includes an offset value of a path loss amount for an uplink signal of the auxiliary network device, and / or an offset value of a path loss compensation factor for an uplink signal of the auxiliary network device.

[0040] In an optional embodiment of the fourth aspect, the method further includes: sending second information, where the second information is used to indicate the application power control offset parameter value.

[0041] In an optional embodiment of the fourth aspect, the transceiver unit is further used to send third information, where the third information is used to activate one or more power control offset parameter values ​​among multiple power control offset parameter values ​​configured by the main network device for the terminal device.

[0042] In an optional embodiment of the fourth aspect, the transceiver unit is further used to send fourth information, which is used to indicate the deactivation of one or more power control offset parameter values ​​among multiple power control offset parameter values ​​configured by the main network device for the terminal device.

[0043] In an optional embodiment of the fourth aspect, the transceiver unit is further used to send fifth information, where the fifth information is used to indicate a time range for applying the power control offset parameter value.

[0044] In an optional embodiment of the fourth aspect, the transceiver unit is also used to send sixth information, which is used to indicate a transmission status indicator; wherein the transmission status indicator includes a first transmission status indicator, and / or a second transmission status indicator, a power control offset parameter value associated with the first transmission status indicator, and / or a power control offset parameter value associated with the second transmission status indicator.

[0045] In an optional embodiment of the fourth aspect, the transmission status indicator is associated with a first preset index value, and the power control offset parameter value is associated with a second preset index value.

[0046] In an optional embodiment of the fourth aspect, the power control offset parameter value is associated with a preset closed-loop index, and the transceiver unit is further used to send a power control command, where the power control command is associated with the preset closed-loop index.

[0047] In a fifth aspect, an embodiment of the present application provides an electronic device, comprising a processor and a memory, wherein the memory is used to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, so that the electronic device executes the power control method provided in the first aspect, or the electronic device executes the power control method provided in the second aspect.

[0048] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, it implements the power control method provided in the first aspect, or enables the electronic device to execute the power control method provided in the second aspect.

[0049] In the seventh aspect, the present application provides a chip system comprising at least one processor and a communication interface, the communication interface and the at least one processor being interconnected through lines, and the at least one processor being used to run computer programs or instructions to execute the power control method provided in the first aspect, or to enable the electronic device to execute the power control method provided in the second aspect.

[0050] In an eighth aspect, an embodiment of the present application provides a computer program product, comprising a computer program. When the computer program is run, the computer executes the power control method provided in the first aspect, or the electronic device executes the power control method provided in the second aspect.

[0051] Embodiments of the present application provide a power control method, device, and storage medium. By receiving a power control offset parameter value sent by a primary network device to indicate an uplink signal for a secondary network device, the transmit power of the uplink signal for a secondary network device that does not support downlink signal transmission is determined based on the power control offset parameter value. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] FIG1 is a diagram of a communication system architecture provided by an embodiment of the present application;

[0053] FIG2 is a diagram of another communication system architecture provided in an embodiment of the present application;

[0054] FIG3 is a schematic flow chart of a power control method provided in an embodiment of the present application;

[0055] FIG4 is a schematic flow chart of a power control method provided in yet another embodiment of the present application;

[0056] FIG5 is a schematic flow chart of a power control method provided in another embodiment of the present application;

[0057] FIG6 is a schematic flow chart of a power control method provided in another embodiment of the present application;

[0058] FIG7 is a schematic flow chart of a power control method provided in another embodiment of the present application;

[0059] FIG8 is a schematic flow chart of a power control method provided in another embodiment of the present application;

[0060] FIG9 is a schematic flow chart of a power control method provided in another embodiment of the present application;

[0061] FIG10 is a schematic flow chart of a power control method provided in another embodiment of the present application;

[0062] FIG11 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0063] FIG12 is a schematic diagram of the structure of a network device provided in an embodiment of the present application;

[0064] FIG13 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] The technical solution in this application will be described below with reference to the accompanying drawings.

[0066] For ease of understanding, the following points are first explained:

[0067] First: In the embodiments of this application, terms such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. For example, the terms "first chip" and "second chip" are used solely to distinguish between different chips and do not define their order. Those skilled in the art will understand that terms such as "first" and "second" do not define the quantity or execution order, and do not necessarily imply differences.

[0068] Second: It should be noted that in the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0069] Third: In the embodiments of the present application, "at least one" refers to one or more, and "more" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, a--c, bc, or abc, where a, b, c can be single or multiple.

[0070] In order to better understand the power control method provided in the embodiment of the present application, the communication system architecture of the embodiment of the present application is first described below.

[0071] For example, Figure 1 is a diagram of a communication system architecture provided by an embodiment of the present application. As shown in Figure 1 , the communication system 10 includes a terminal device 101 and a network device 102, and the terminal device 101 communicates with the network device 102 wirelessly.

[0072] The terminal device involved in the embodiments of the present application can also be referred to as a terminal, which can be a device with wireless transceiver capabilities, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water (such as a ship, etc.); it can also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal device can be a user equipment (UE), wherein the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device with wireless communication capabilities. Exemplarily, the UE can be a mobile phone, a tablet computer, or a computer with wireless transceiver capabilities. The terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a mixed reality (MR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. In an embodiment of the present application, the device for realizing the function of the terminal device may be the terminal device; or it may be a device that can support the terminal device to realize the function, such as a chip system, which may be installed in the terminal device.

[0073] The network device 102 involved in the embodiment of the present application includes an access network device 1021 and a core network device 1022. Optionally, the access network device 1021 can be a next generation nodeB (gNodeB), which can also be called a 5G base station.

[0074] Access network (RAN) equipment is the intermediate device that connects terminal devices to core network equipment via wireless communication. It is primarily responsible for radio resource management, quality of service (QoS) management, data compression and encryption, etc. on the air interface side. Examples include NodeBs, evolved eNodeBs, gNodeBs in 5G mobile communication systems or next-generation radio (NR) communication systems, and base stations in future mobile communication systems.

[0075] Core network (CN) equipment includes user plane function (UPF) network elements, access and mobility management function (AMF) network elements, session management function (SMF) network elements, policy control function (PCF) network elements, etc. Among them, the UPF network element is mainly responsible for the transmission of user data, while the other network elements can be called control plane function network elements, which are mainly responsible for authentication, authorization, registration management, session management, mobility management, and policy control to ensure the reliable and stable transmission of user data.

[0076] In an embodiment of the present application, the device for implementing the function of the network device may be a network device, or a device that can support the network device to implement the function, such as a chip system, which may be installed in the network device.

[0077] The technical solutions provided in the embodiments of the present application can be applied to the long term evolution (LTE) architecture, and can also be applied to the universal mobile telecommunications system (UMTS) terrestrial radio access network (UTRAN) architecture, or the global system for mobile communication (GSM) / enhanced data rate for GSM evolution (EDGE) system radio access network (GSM EDGE radio access network, GERAN) architecture. In addition, the technical solutions provided in the embodiments of the present application can also be applied to any other wireless communication system with similar structure and function, such as a public land mobile network (PLMN) system, a 5G communication system or a communication system after 5G, etc., and the embodiments of the present application do not impose any restrictions on this.

[0078] Wireless communication between communication devices may include: wireless communication between network devices and terminal devices, wireless communication between network devices and network devices, and wireless communication between terminal devices. In the embodiments of the present application, the term "wireless communication" may also be referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission" or "transmission". Those skilled in the art may apply the technical solutions provided in the embodiments of the present application to wireless communication between network devices and terminal devices, such as wireless communication between access network devices and terminal devices.

[0079] Figure 2 is another communication system architecture diagram provided in an embodiment of the present application. As shown in Figure 2, the communication system 20 includes a terminal device 201, a primary network device 202, and a secondary network device 203. The terminal device 201 can wirelessly communicate with the primary network device 202 and the secondary network device 203.

[0080] The terminal device 201 is similar to the terminal device 101 described in FIG. 1 , and the primary network device 202 and the secondary network device 203 are similar to the network device 102 described in FIG. 1 , and are not described in detail here.

[0081] Specifically, the service network device corresponding to the terminal device 201 may include a primary network device 202 and / or a secondary network device 203 .

[0082] The primary network device 202 can simultaneously support the sending of downlink signals and the receiving of uplink signals, and the secondary network device 203 can support the receiving of uplink signals.

[0083] Exemplarily, the primary network device 202 may also be described as a macro base station, and the secondary network device 203 may also be described as a micro base station.

[0084] It should be noted that the number of auxiliary network devices shown in Figure 2 is 1. The power control method provided in the embodiment of the present application does not limit the number of auxiliary network devices. The specific number of auxiliary network devices can be determined according to actual needs.

[0085] In some scenarios, such as the communication system architecture shown in FIG2 a , the uplink signal sent by the terminal device may be an uplink signal for the auxiliary network device.

[0086] In other scenarios, such as the communication system architecture shown in FIG2b , due to the mobility of the terminal device, the uplink signal sent by the terminal device can be changed from being directed to the primary network device to being directed to the secondary network device, or vice versa. For example, in some cases, when the distance between the terminal device and the primary network device is less than the distance between the terminal device and the secondary network device, the terminal device can send an uplink signal to the primary network device.

[0087] In other scenarios, in order to enhance the rate of the uplink signal, as shown in the communication system architecture diagram of Figure 2a, the terminal device may send uplink signals to the primary network device and the secondary network device at the same time. Therefore, the primary network device needs to indicate two sets of power configuration parameters to the terminal device for uplink signal transmission, one set of power configuration parameters is used for the terminal device to send uplink signals to the primary network device, and the other set of power configuration parameters is used for the terminal device to send uplink signals to the secondary network device.

[0088] In the related art, in the communication system shown in FIG2 , the terminal device 201 can receive a downlink signal, such as a downlink reference signal, from the master network device 202. Furthermore, the terminal device 201 can determine the transmit power of the downlink reference signal based on the received transmit power information of the downlink reference signal sent by the master network device 202, and determine the path loss amount between the terminal device 201 and the master network device 202 based on the received reference signal receive power detected by the terminal device 201.

[0089] Since the secondary network device 203 does not support the transmission of downlink signals, that is, the terminal device cannot receive the downlink reference signal transmitted by the secondary network device 203, and further cannot receive the downlink reference signal transmit power information transmitted by the secondary network device 203, the terminal device 201 cannot determine the path loss between itself and the secondary network device 203. In addition, since the primary network device 202 and the secondary network device 203 are located in different geographical locations, the path loss between the primary network device 202 and the terminal device 201 may be different from the path loss between the secondary network device 203 and the terminal device 201. Therefore, the path loss between the primary network device 202 and the terminal device 201 cannot be directly used to determine the transmit power of the uplink signal of the terminal device 201 to the secondary network device.

[0090] In view of the above problems, the present invention proposes a power control method, the main inventive ideas of which are as follows:

[0091] The main network device sends a power control offset parameter value for the auxiliary network device to the terminal device, so that the terminal device determines the path loss amount and / or path loss compensation factor of the uplink signal of the terminal device for the auxiliary network device based on the power control offset parameter value, and further determines the sending power of the uplink signal of the terminal device for the auxiliary network device based on the path loss amount and / or path loss compensation factor.

[0092] The following first describes in detail the method for determining the transmission power of the uplink signal of the terminal device.

[0093] Specifically, the transmit power of the uplink signal of the terminal device can be expressed by the following formula:

[0094] Among them, P l Indicates the transmit power value of the uplink signal, that is, the transmit power of the uplink signal of the terminal device; l represents the closed-loop index, and the network device can be configured with multiple closed-loop indexes, such as l=0 and l=1; P CMAX Indicates the maximum allowable transmit power value of the uplink signal; P0 indicates the target receive power on the network device side, which is usually configured by the network device; M indicates the bandwidth of the uplink signal; PL indicates the path loss amount, which is calculated based on the downlink reference signal. The specific calculation formula is: downlink reference signal transmit power - downlink reference signal receive power; α indicates the path loss compensation factor, which is used to compensate for path loss, 0≤α≤1, and is usually configured by the network device; f l is the closed-loop power adjustment.

[0095] Specifically, closed-loop power adjustment is divided into:

[0096] 1) Absolute value closed-loop power adjustment: f l The power adjustment amount indicated by the power control command sent by the network device to the terminal device;

[0097] 2) Cumulative closed-loop power adjustment: f l It is necessary to consider the multiple power control commands that the network device has previously sent to the terminal device, f l It is the cumulative sum of the power adjustment amounts indicated by multiple power control commands.

[0098] The power control command is for a closed-loop index 1, which is usually indicated in the DCI.

[0099] It can be understood that the path loss amount of the transmission power of the uplink signal between the main network device and the terminal device is determined based on the downlink reference signal. Specifically, the difference between the downlink reference signal transmission power and the downlink reference signal reception power is used as the path loss amount PL between the terminal device and the main network device. Furthermore, the path loss compensation factor α configured by the main network device and the product of the path loss amount α·PL between the terminal device and the main network device are used as one of the items in determining the transmission power of the uplink signal between the terminal device and the main network device. However, since the auxiliary network device does not support the transmission of downlink signals, the path loss amount and the path loss compensation factor of the uplink signal between the terminal device and the auxiliary network device cannot be determined in the above-mentioned method for determining the transmission power of the uplink signal. Therefore, the embodiment of the present application proposes a power control method for the above-mentioned communication system deployment architecture, which further determines the transmission power of the uplink signal between the terminal device and the auxiliary network device by determining the path loss amount and the path loss compensation factor of the uplink signal for the auxiliary network device.

[0100] It should be noted that in the power control method provided in the embodiment of the present application, the path loss amount PL between the terminal device and the main network device is called the first path loss amount, and the path loss compensation factor α configured for the main network device is called the first path loss compensation factor α.

[0101] Optionally, in the power control method provided in an embodiment of the present application, the uplink signal of the terminal device includes a signal corresponding to the uplink channel and / or an uplink reference signal.

[0102] In some embodiments, the uplink signal of the terminal device includes a signal corresponding to an uplink channel;

[0103] In some embodiments, the uplink signal of the terminal device includes an uplink reference signal of the uplink signal;

[0104] In some embodiments, the uplink signal of the terminal device includes a signal corresponding to the uplink channel and an uplink reference signal.

[0105] Optionally, the uplink channel includes a physical uplink shared channel (PUSCH), and / or a physical uplink control channel (PUCCH), and / or a physical random access channel (PRACH).

[0106] Optionally, the uplink reference signal includes at least one of an uplink reference signal for a non-codebook, an uplink reference signal for a codebook, or an uplink reference signal for beam management.

[0107] Specifically, the uplink reference signal used for non-codebook is mainly used to determine the codebook of the uplink signal based on the uplink and downlink reciprocity of the channel; the uplink reference signal used for codebook is mainly used to assist the network device in determining the codebook of the uplink signal.

[0108] It can be understood that since the power control method provided in the embodiment of the present application does not support the transmission of downlink signals, that is, the terminal device cannot receive the downlink signals sent by the auxiliary network device, and the uplink and downlink reciprocity of the channel cannot be met, the power control method provided in the embodiment of the present application can be used for non-codebook uplink reference signals.

[0109] Optionally, the uplink reference signal does not include an uplink reference signal using antenna switching.

[0110] Specifically, the uplink reference signal used for antenna switching is mainly used to assist network equipment in measuring downlink channels.

[0111] It can be understood that since in the power control method provided in the embodiment of the present application, the auxiliary network device does not support the transmission of downlink signals, that is, the terminal device cannot receive the downlink signal sent by the auxiliary network device, the uplink reference signal used for antenna switching is transmitted by the terminal device to the main network device. Therefore, the power control method provided in the embodiment of the present application cannot be used for the uplink reference signal of antenna switching.

[0112] Based on the above formulas for expressing the transmit power of the uplink signal of the terminal device, the power control formulas for the physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), physical random access channel (PRACH), and sounding reference signal (SRS) are described in detail below.

[0113] 1) The power control formula of PUSCH can be expressed by the following formula:

[0114] Wherein, b represents a bandwidth part (BWP), c represents a cell, f represents a carrier, i represents a subframe, j represents an index of a configuration parameter, and PL represents a path loss amount.

[0115] Optional, P O_PUSCH,b,f,c (j) = P O_NOMINAL,PUSCH,f,c (j)+P O_UE_PUSCH,b,f,c (j)

[0116] The specific parameters involved in the above formula can refer to the meanings defined in existing communication standards. O_PUSCH,b,f,c (j) and α b,f,c The specific content of (j) can refer to the definition in the 3rd Generation Partnership Project (3GPP) protocol TS 38.213 and is not repeated here. Among them, the specific content of p0-Nominal, p0, P0-PUSCH-Alpha, deltaPreamble and msg3-DeltaPreamble can refer to the definition in the 3GPP protocol TS 38.331 and is not repeated here.

[0117] And, α b,f,c (j) is the path loss compensation factor described in this application, PL b,f,c is the path loss amount described in this application.

[0118] It can be understood that the above power control formula is used to calculate the transmit power of the uplink signal for PUSCH information transmission by the terminal device in BWP(b), cell c, carrier f, and subframe i. That is, the terminal device can calculate the transmit power of the uplink signal for PUSCH information transmission by the terminal device in BWP(b), cell c, carrier f, and subframe i based on the PUSCH parameters.

[0119] 2) The power control formula of PUCCH can be expressed by the following formula:

[0120] Where b represents BWP, c represents cell, f represents carrier, i represents subframe, q represents u Indicates the index of the configuration parameter, and PL indicates the path loss.

[0121] The specific parameters involved in the above formula can refer to the meanings defined in existing communication standards. O_PUCCH,b,f,c (q u ) The specific content of the 3GPP can refer to the definition in TS 38.213 protocol, which is not repeated here. The specific content of the p0-PUCCH can refer to the definition in TS 38.331 protocol, which is not repeated here.

[0122] And, it can be understood that for PUCCH, the value of α is 1, so it is not shown in the formula. b,f,c is the path loss amount described in this application.

[0123] It can be understood that the above power control formula is used to calculate the uplink signal transmit power of the terminal device for PUCCH information transmission in BWP (b), cell c, carrier f, and subframe i. That is, the terminal device can calculate the uplink transmit power of the terminal device for PUCCH information transmission in BWP b, cell c, carrier f, and subframe i based on the PUSCH parameters.

[0124] 3) The PRACH power control formula can be expressed by the following formula:

[0125] P PRACH,b,f,c (i) = min{P CMAX,f,c (i),P PRACH,target,f,c +PL b,f,c}

[0126] Here, b represents BWP, c represents cell, f represents carrier, i represents subframe, and PL represents path loss.

[0127] The specific parameters involved in the above formula can refer to the meanings defined in existing communication standards.PRACH,target,f,c Please refer to the definition of 3GPP in TS 38.213 and will not be repeated here. For the specific content of PREAMBLE_RECEIVED_TARGET_POWER, please refer to the definition of 3GPP in TS 38.321 and will not be repeated here. For the specific content of preambleReceivedTargetPower and powerRampingStep, please refer to the definition of 3GPP in TS 38.331 and will not be repeated here.

[0128] And, it can be understood that for PRACH, the value of α is 1, so it is not shown in the formula. b,f,c is the path loss amount described in this application.

[0129] It can be understood that the above power control formula is used to calculate the transmit power of the uplink signal of the terminal device for PRACH information transmission in BWP(b), cell c, carrier f, and subframe i. That is, the terminal device can calculate the uplink transmit power of the terminal device for PRACH information transmission in BWP b, cell c, carrier f, and subframe i based on the PRACH parameters.

[0130] 4) The power control formula of SRS can be expressed by the following formula:

[0131] Where b represents BWP, c represents cell, f represents carrier, i represents subframe, q represents s Indicates the index of the configuration parameter, and PL indicates the path loss.

[0132] The specific parameters involved in the above formula can refer to the meanings defined in existing communication standards. O_SRS,b,f,c (q s ) and α SRS,b,f,c (q s ) can refer to the definition of 3GPP in TS 38.213 protocol, which will not be repeated here.

[0133] And, α SRS,b,f,c is the path loss compensation factor described in this application, PL b,f,c is the path loss amount described in this application.

[0134] It can be understood that the above power control formula is used to calculate the uplink signal transmission power of the terminal device for SRS information transmission in BWP (b), cell c, carrier f and subframe i. That is, the terminal device can calculate the uplink transmission power of the terminal device for SRS information transmission in BWP b, cell c, carrier f, subframe i based on the SRS parameters.

[0135] The technical solutions shown in this application are described in detail below through specific embodiments. It should be noted that the following embodiments can exist independently or in combination with each other. For the same or similar content, such as the explanation of terms or nouns, and the explanation of steps, etc., different embodiments can refer to each other and will not be repeated.

[0136] FIG3 is a schematic flow chart of a power control method according to an embodiment of the present application. As shown in FIG3 , the power control method includes the following steps:

[0137] S301: Receive first information from a primary network device, where the first information is used to indicate a power control offset parameter value for an uplink signal of a secondary network device.

[0138] Accordingly, the master network device sends the first information.

[0139] Exemplarily, sending the first information may also be described as indicating the first information, or may also be described as transmitting the first information.

[0140] Exemplarily, receiving the first information may also be described as acquiring the first information.

[0141] Optionally, the master network device generates the first information when sending the first information. Specifically, the master network device generates the first information according to the behavior of the terminal device detected by the master network device.

[0142] Exemplarily, generating the first information may also be described as determining the first information.

[0143] Optionally, the primary network device supports both sending of downlink signals and receiving of uplink signals, and the secondary network device supports receiving of uplink signals.

[0144] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0145] Optionally, the uplink signal of the terminal device may include a signal corresponding to an uplink channel and / or an uplink reference signal.

[0146] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH and PRACH.

[0147] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for a non-codebook, an uplink reference signal for a codebook, or an uplink reference signal for beam management.

[0148] Optionally, the power control offset parameter value includes an offset value of a path loss amount of an uplink signal and / or an offset value of a path loss compensation factor of an uplink signal.

[0149] In some embodiments, the power control offset parameter value includes an offset value of the path loss amount of the uplink signal; in some embodiments, the power control offset parameter value includes an offset value of the path loss compensation factor of the uplink signal; in some embodiments, the power control offset parameter value includes an offset value of the path loss amount of the uplink signal, and an offset value of the path loss compensation factor of the uplink signal.

[0150] Optionally, the first information is carried in radio resource control (RRC) signaling.

[0151] S302: Determine the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value.

[0152] Exemplarily, the transmission power of the uplink signal for the secondary network device may also be described as the transmission power of the uplink transmission for the secondary network device.

[0153] Optionally, if the channel of the uplink signal is associated with a power control offset parameter value, the transmit power of the uplink signal of the channel for the auxiliary network device is determined according to the power control offset parameter value;

[0154] And / or, if the uplink reference signal is associated with a power control offset parameter value, the transmit power of the uplink reference signal for the uplink signal of the secondary network device is determined according to the power control offset parameter value.

[0155] When the power control offset parameter value includes an offset value of the path loss amount for the uplink signal of the auxiliary network device, optionally, a second path loss amount related to the transmission power of the uplink signal of the auxiliary network device is determined based on the offset value of the path loss amount and the first path loss amount PL.

[0156] In some embodiments, the second path loss amount may be expressed by the following formula:

[0157] Second path loss amount=first path loss amount PL+path loss amount offset value ΔPL

[0158] Here, PL represents the first path loss amount, and ΔPL represents the offset value of the path loss amount.

[0159] The first path loss PL = downlink reference signal transmit power - downlink reference signal receive power

[0160] The downlink reference signal transmit power is the transmit power of the downlink reference signal of the master network device, and the reference signal receive power is the reference signal receive power after high-layer filtering of the terminal device.

[0161] The units of the first path loss amount PL and the second path loss amount are dB.

[0162] It can be understood that in order to enhance uplink coverage, the distance between the auxiliary network device and the terminal device is usually closer than the distance between the main network device and the terminal device. Therefore, the actual path loss between the auxiliary network device and the terminal device will be smaller than the path loss between the main network device and the terminal device, that is, the offset value of the path loss is less than or equal to 0.

[0163] Optionally, the offset value of the path loss amount is less than or equal to 0.

[0164] It should be noted that, based on the above formula, when the offset value of the path loss amount is less than or equal to 0, the offset value of the path loss amount is preceded by “+”.

[0165] In some embodiments, the second path loss amount may also be expressed by the following formula:

[0166] Second path loss amount=first path loss amount PL-path loss amount offset value ΔPL

[0167] Optionally, the offset value of the path loss amount is greater than or equal to 0.

[0168] It should be noted that, based on the above formula, when the offset value of the path loss amount is greater than or equal to 0, the offset value of the path loss amount is preceded by “-”.

[0169] When the power control offset parameter value includes an offset value of a path loss compensation factor for an uplink signal of the secondary network device, optionally, a second path loss compensation factor related to the transmit power of the uplink signal of the secondary network device is determined based on the offset value of the path loss compensation factor and the first path loss compensation factor α.

[0170] In some embodiments, the second path loss compensation factor may be expressed by the following formula:

[0171] Second path loss compensation factor = first path loss compensation factor α + offset value Δα of path loss compensation factor

[0172] Wherein, α represents the first path loss compensation factor, and Δα represents the offset value of the path loss compensation factor.

[0173] The first path loss compensation factor α may be a path loss compensation factor configured by the main network device to the terminal device, and the first path loss compensation factor α is less than or equal to 0.

[0174] It can be understood that in order to enhance uplink coverage, the distance between the auxiliary network device and the terminal device is usually closer than the distance between the main network device and the terminal device. Therefore, the actual path loss between the auxiliary network device and the terminal device will be smaller than the path loss between the main network device and the terminal device. The first path loss compensation factor is usually less than or equal to the second path loss compensation factor, that is, the offset value of the path loss compensation factor is less than or equal to 0.

[0175] Optionally, the offset value of the path loss compensation factor is less than or equal to 0.

[0176] It should be noted that, based on the above formula, when the offset value of the path loss compensation factor is less than or equal to 0, the offset value of the path loss compensation factor is preceded by “+”.

[0177] In some embodiments, the second path loss compensation factor may be expressed by the following formula:

[0178] Second path loss compensation factor=first path loss compensation factor α+offset value Δα of path loss compensation factor. Optionally, the offset value of the path loss compensation factor is greater than or equal to 0.

[0179] It should be noted that, based on the above formula, when the offset value of the path loss compensation factor is greater than or equal to 0, the offset value of the path loss amount is preceded by “-”.

[0180] Optionally, the transmit power of the uplink signal for the secondary network device is determined according to the second path loss amount and the second path loss compensation factor.

[0181] In some embodiments, the product of the second path loss amount and the second path loss compensation factor is used as an item in determining the transmission power of the uplink signal of the auxiliary network device.

[0182] When the power control offset parameter value includes an offset value of the path loss amount of the uplink signal and an offset value of the path loss compensation factor, in some embodiments, one of the transmit powers of the uplink signal for the secondary network device is determined using the second path loss amount and the second path loss compensation factor, which can be expressed by the following formula: (α+Δα)·(PL+ΔPL)

[0183] Here, (α+Δα) represents the second path loss compensation factor, and (PL+ΔPL) represents the second path loss amount.

[0184] Optionally, the offset value of the path loss compensation factor is less than or equal to 0, and the offset value of the path loss amount is less than or equal to 0.

[0185] In some embodiments, one of the transmit powers of the uplink signal for the auxiliary network device is determined by using the second path loss amount and the second path loss compensation factor, which can be expressed by the following formula: (α-Δα)·(PL-ΔPL)

[0186] Optionally, the offset value of the path loss compensation factor is greater than or equal to 0, and the offset value of the path loss amount is greater than or equal to 0.

[0187] In some embodiments, one of the transmit powers of the uplink signal for the auxiliary network device is determined by using the second path loss amount and the second path loss compensation factor, which can be expressed by the following formula: (α+Δα)·(PL-ΔPL)

[0188] Optionally, the offset value of the path loss compensation factor is less than or equal to 0, and the offset value of the path loss amount is greater than or equal to 0.

[0189] In some embodiments, one of the transmit powers of the uplink signal for the auxiliary network device is determined by using the second path loss amount and the second path loss compensation factor, which can be expressed by the following formula: (α-Δα)·(PL+ΔPL)

[0190] Optionally, the offset value of the path loss compensation factor is greater than or equal to 0, and the offset value of the path loss amount is less than or equal to 0.

[0191] When the power control offset parameter value includes an offset value of the path loss amount of the uplink signal, in some embodiments, one of the transmit powers of the uplink signal for the secondary network device is determined by using the second path loss amount and the first path loss compensation factor, which can be expressed by the following formula: α·(PL+ΔPL)

[0192] Here, α represents the first path loss compensation factor, and (PL+ΔPL) represents the second path loss amount.

[0193] Optionally, the offset value of the path loss amount is less than or equal to 0.

[0194] In some embodiments, one of the transmit powers of the uplink signal for the auxiliary network device is determined by using the second path loss amount and the first path loss compensation factor, which can be expressed by the following formula: α·(PL-ΔPL)

[0195] Optionally, the offset value of the path loss amount is greater than or equal to 0.

[0196] When the power control offset parameter value includes an offset value of a path loss compensation factor for an uplink signal, in some embodiments, one of the transmit powers of the uplink signal for the auxiliary network device is determined by using the first path loss amount and the second path loss compensation factor, which can be expressed by the following formula: (α+Δα)PL

[0197] Optionally, the offset value of the path loss compensation factor is less than or equal to 0.

[0198] In some embodiments, one of the transmission powers of the uplink signal for the auxiliary network device is determined by using the first path loss amount and the second path loss compensation factor, which can be expressed by the following formula: (α-Δα)PL

[0199] Optionally, the offset value of the path loss compensation factor is greater than or equal to 0.

[0200] It can be understood that in the power control method provided in the embodiment of the present application, the power control offset parameter value sent by the main network device to the terminal device can be the offset value of the path loss amount, the offset value of the path loss compensation factor, or the offset value of the path loss amount and the offset value of the path loss compensation factor.

[0201] In an embodiment of the present application, by receiving a power control offset parameter value sent by a main network device to indicate an uplink signal for a secondary network device, the path loss amount and the path loss compensation factor for uplink signal transmission between a terminal device and the secondary network device are determined according to the power control offset parameter value. Further, based on the path loss amount and the path loss compensation factor, the transmission power of the uplink signal between the terminal device and the secondary network device is determined, thereby realizing the determination of the transmission power of the uplink signal for the secondary network device that does not support the transmission of downlink signals.

[0202] It should be noted that, as shown in the communication system architecture of FIG2b above, due to the mobility of the terminal device, the uplink signal sent by the terminal device can be changed from being directed to the primary network device to being directed to the secondary network device, or vice versa. For example, in some cases, when the distance between the terminal device and the primary network device is less than the distance between the terminal device and the secondary network device, the terminal device can directly transmit the uplink signal to the primary network device.

[0203] It is understandable that the terminal device does not need to apply the power control offset parameter value to the uplink signal transmission power of the primary network device. Therefore, the power control method provided in the embodiment of the present application can further configure the terminal device with information on whether the power control offset parameter value is effective or applied by the primary network device, so as to determine the uplink signal transmission power for the secondary network device based on the power control offset parameter value.

[0204] 4 to 7 , a detailed description will be given below of a specific implementation method for determining the transmission power of the uplink signal for the auxiliary network device according to the power control offset parameter value, in which the main network device further configures information on whether the terminal device is effective or applies the power control offset parameter value, and when the main network device further configures information on whether the terminal device is effective or applies the power control offset parameter value.

[0205] FIG4 is a schematic flow chart of a power control method provided in another embodiment of the present application. As shown in FIG4 , the power control method includes the following steps:

[0206] S401: Receive first information from a primary network device, where the first information is used to indicate one or more power control offset parameter values ​​for an uplink signal of a secondary network device.

[0207] Accordingly, the master network device sends the first information.

[0208] Exemplarily, sending the first information may also be described as indicating the first information, or may also be described as transmitting the first information.

[0209] Exemplarily, receiving the first information may also be described as acquiring the first information.

[0210] Optionally, the master network device generates the first information when sending the first information. Specifically, the master network device generates the first information according to the behavior of the terminal device detected by the master network device.

[0211] Exemplarily, generating the first information may also be described as determining the first information.

[0212] Optionally, the first information is carried in RRC signaling.

[0213] Optionally, the signaling carrying the first information is used to configure one or more power control offset parameter values.

[0214] Optionally, the primary network device supports both sending of downlink signals and receiving of uplink signals, and the secondary network device supports receiving of uplink signals.

[0215] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0216] Optionally, the uplink signal of the terminal device may include a signal corresponding to an uplink channel and / or an uplink reference signal.

[0217] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH and PRACH.

[0218] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for a non-codebook, an uplink reference signal for a codebook, or an uplink reference signal for beam management.

[0219] Optionally, the one or more power control offset parameter values ​​include offset values ​​of one or more path loss amounts of the uplink signal and / or offset values ​​of one or more path loss compensation factors of the uplink signal.

[0220] S402: Receive second information from the primary network device, where the second information is used to indicate an application power offset parameter value.

[0221] Accordingly, the master network device sends the second information.

[0222] Exemplarily, sending the second information may also be described as indicating the second information, or may also be described as transmitting the second information.

[0223] Exemplarily, receiving the second information may also be described as acquiring the second information.

[0224] Optionally, the second information is carried in downlink control information (DCI) signaling.

[0225] Exemplarily, the second information indicates application of the power offset parameter value, which can also be described as the second information being used to indicate that the power offset parameter value is effective.

[0226] Optionally, before determining the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value, second information is received from the primary network device.

[0227] Specifically, the second information is used to indicate whether the power offset parameter value is effective or applied. In one possible implementation method, a numerical agreement method can be adopted between the main network device and the terminal device, such as a value of 1 indicates that the second information indicates that the power offset parameter value is effective or applied, and a value of 0 indicates that the second information indicates that the power offset parameter value is not effective or not applied; accordingly, the value of 0 can also indicate that the second information indicates that the power offset parameter value is effective or applied, and the value of 1 indicates that the second information indicates that the power offset parameter value is not effective or not applied, etc.

[0228] Optionally, when the first information indicates multiple power control offset parameter values, the second information is further used to indicate any one of the multiple power control offset parameter values.

[0229] In some embodiments, when the first information indicates a power control offset parameter value, the second information further indicates application of the power control offset parameter value.

[0230] In some embodiments, when the first information indicates at least two power control offset parameter values, the second information indicates the application of the power control offset parameter value and further indicates any one of multiple power control offset parameter values, that is, the second information is used to indicate the application of any one of multiple power control offset parameter values.

[0231] In a possible implementation, multiple power control offset parameter values ​​are numbered, and one of the multiple power control offset parameter values ​​is determined according to a sequence number indicated by the second information.

[0232] Optionally, the first information and the second information may be carried in the same signaling or in different signalings. This embodiment of the present application does not limit this, and the specific information is determined according to actual application requirements.

[0233] Exemplarily, the signaling may be RRC signaling or DCI signaling.

[0234] In some embodiments, the first information and the second information may be carried in the same RRC signaling or DCI signaling.

[0235] In some embodiments, the first information is carried in RRC signaling, and the second information is carried in DCI signaling.

[0236] In some embodiments, the first information is carried in DCI signaling, and the second information is carried in RRC signaling.

[0237] It should be noted that when the second information indicates the application of the power control offset parameter value, one possible situation is that the uplink signal of the terminal device is a transmission to the auxiliary network device, and the path loss amount at this time is determined according to the second path loss amount, or the path loss compensation factor at this time is determined according to the second path loss compensation factor.

[0238] The second path loss amount is determined based on the first path loss amount and an offset value of the path loss amount; and the second path loss compensation factor is determined based on the first path loss compensation factor and an offset value of the path loss compensation factor.

[0239] S403: In response to the second information, determine the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value.

[0240] Specifically, when the second information indicates that the power control offset parameter value is effective or applied, the transmit power of the uplink signal for the secondary network device is determined further according to one power control offset parameter value among the multiple power control offset parameter values ​​indicated by the second information.

[0241] Specifically, the transmit power of the uplink signal for the secondary network device is determined according to the power control offset parameter value, which is similar to the above step S302 and will not be described again here.

[0242] Optionally, when the second information indicates that the power control offset parameter value is not effective or not applied, a possible situation is that the uplink signal of the terminal device is a transmission to the main network device, and the path loss amount at this time is determined according to the first path loss amount, or the path loss compensation factor at this time is determined according to the first path loss compensation factor.

[0243] The first path loss amount is determined according to the downlink reference signal transmit power and the downlink reference signal receive power.

[0244] In an embodiment of the present application, when first information indicating multiple power control offset parameter values ​​is received and second information for indicating the application power control offset parameter value is received, the transmission power of the uplink signal for the auxiliary network device is further determined based on one power control offset parameter value among the multiple power control offset parameter values ​​indicated by the second information, thereby realizing the determination of the transmission power of the uplink signal for the auxiliary network device.

[0245] FIG5 is a schematic flow chart of a power control method according to another embodiment of the present invention. As shown in FIG5 , the power control method includes the following steps:

[0246] S501: Receive first information from a primary network device, where the first information is used to indicate one or more power control offset parameter values ​​for an uplink signal of a secondary network device.

[0247] Accordingly, the master network device sends the first information.

[0248] Exemplarily, sending the first information may also be described as indicating the first information, or may also be described as transmitting the first information.

[0249] Exemplarily, receiving the first information may also be described as acquiring the first information.

[0250] Optionally, the master network device generates the first information when sending the first information. Specifically, the master network device generates the first information according to the behavior of the terminal device detected by the master network device.

[0251] Exemplarily, generating the first information may also be described as determining the first information.

[0252] Optionally, the first information is carried in RRC signaling.

[0253] Optionally, the signaling carrying the first information is used to configure one or more power control offset parameter values.

[0254] Optionally, the primary network device supports both sending of downlink signals and receiving of uplink signals, and the secondary network device supports receiving of uplink signals.

[0255] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0256] Optionally, the uplink signal of the terminal device may include a signal corresponding to an uplink channel and / or an uplink reference signal.

[0257] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH and PRACH.

[0258] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for a non-codebook, an uplink reference signal for a codebook, or an uplink reference signal for beam management.

[0259] Optionally, the one or more power control offset parameter values ​​include offset values ​​of one or more path loss amounts of the uplink signal and / or offset values ​​of one or more path loss compensation factors of the uplink signal.

[0260] S502: Receive second information from a primary network device, where the second information is used to indicate one of a plurality of power control offset parameter values.

[0261] Accordingly, the master network device sends the second information.

[0262] Exemplarily, sending the second information may also be described as indicating the second information, or may also be described as transmitting the second information.

[0263] Optionally, the second information is carried in media access control control element (MAC CE) signaling.

[0264] Exemplarily, receiving the second information may also be described as acquiring the second information.

[0265] Optionally, before determining the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value, second information is received from the primary network device.

[0266] In a possible implementation, multiple power control offset parameter values ​​are numbered, and one of the multiple power control offset parameter values ​​is determined according to a sequence number indicated by the second information.

[0267] In some embodiments, when the power control offset parameter value indicated by the first information is one, the second information may also be used to indicate application of the power control offset parameter value.

[0268] Optionally, the first information and the second information may be carried in the same signaling or in different signalings. This embodiment of the present application does not limit this, and the specific information is determined according to actual application requirements.

[0269] Exemplarily, the signaling may be RRC signaling or MAC CE signaling.

[0270] In some embodiments, the first information and the second information may be carried in the same RRC signaling or MAC CE signaling.

[0271] In some embodiments, the first information is carried in RRC signaling, and the second information is carried in MAC CE signaling.

[0272] In some embodiments, the first information is carried in MAC CE signaling, and the second information is carried in RRC signaling. S503 : In response to the second information, the transmit power of the uplink signal for the secondary network device is determined according to the power control offset parameter value.

[0273] Specifically, the transmit power of the uplink signal for the secondary network device is determined according to one power control offset parameter value among the multiple power control offset parameter values ​​indicated by the second information.

[0274] Specifically, the transmit power of the uplink signal for the secondary network device is determined according to the power control offset parameter value, which is similar to the above step S302 and will not be described again here.

[0275] In an embodiment of the present application, after receiving first information indicating multiple power control offset parameter values, the transmission power of the uplink signal for the auxiliary network device is further determined based on one power control offset parameter value among the multiple power control offset parameter values ​​indicated by the received second information, thereby realizing the determination of the transmission power of the uplink signal for the auxiliary network device.

[0276] FIG6 is a schematic flow chart of a power control method according to another embodiment of the present invention. As shown in FIG6 , the power control method includes the following steps:

[0277] S601: Receive first information from a primary network device, where the first information is used to indicate one or more power control offset parameter values ​​for an uplink signal of a secondary network device.

[0278] Accordingly, the master network device sends the first information.

[0279] Exemplarily, sending the first information may also be described as indicating the first information, or may also be described as transmitting the first information.

[0280] Exemplarily, receiving the first information may also be described as acquiring the first information.

[0281] Optionally, the master network device generates the first information when sending the first information. Specifically, the master network device generates the first information according to the behavior of the terminal device detected by the master network device.

[0282] Exemplarily, generating the first information may also be described as determining the first information.

[0283] Optionally, the first information is carried in RRC signaling.

[0284] Optionally, the signaling carrying the first information is used to configure one or more power control offset parameter values.

[0285] Optionally, the primary network device supports both sending of downlink signals and receiving of uplink signals, and the secondary network device supports receiving of uplink signals.

[0286] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0287] Optionally, the uplink signal of the terminal device may include a signal corresponding to an uplink channel and / or an uplink reference signal.

[0288] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH and PRACH.

[0289] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for a non-codebook, an uplink reference signal for a codebook, or an uplink reference signal for beam management.

[0290] Optionally, the one or more power control offset parameter values ​​include offset values ​​of one or more path loss amounts of the uplink signal and / or offset values ​​of one or more path loss compensation factors of the uplink signal.

[0291] S602: Receive third information from the master network device, where the third information is used to activate one or more power control offset parameter values ​​among a plurality of power control offset parameter values ​​configured by the master network device for the terminal device.

[0292] Accordingly, the master network device sends the third information.

[0293] Exemplarily, sending the third information may also be described as indicating the third information, or may also be described as transmitting the third information.

[0294] Exemplarily, receiving the third information may also be described as acquiring the third information.

[0295] Optionally, the third information is carried in MAC CE signaling.

[0296] Optionally, the third information is used to activate the power control offset parameter value of the uplink signal of the secondary network device configured by the primary network device for the terminal device.

[0297] Among them, the auxiliary network equipment supports the reception of uplink signals but does not support the transmission of downlink signals.

[0298] It can be understood that one or more power control offset parameter values ​​among the configured multiple power control offset parameter values ​​are the one or more power control offset parameter values ​​indicated by the first information in step S601.

[0299] Optionally, activating one or more power control offset parameter values ​​includes activating one or more offset values ​​of path loss amounts of uplink signals, and / or activating one or more offset values ​​of path loss compensation factors of uplink signals.

[0300] In some embodiments, activating one or more power control offset parameter values ​​includes activating one or more offset values ​​of path loss amounts of the uplink signal; in some embodiments, activating one or more power control offset parameter values ​​includes activating one or more offset values ​​of path loss compensation factors of the uplink signal; in some embodiments, activating one or more power control offset parameter values ​​includes activating one or more offset values ​​of path loss amounts of the uplink signal, and activating one or more offset values ​​of path loss compensation factors of the uplink signal.

[0301] It is understandable that the activated one or more power control offset parameter values ​​may also be deactivated by indicating deactivation information through MAC CE signaling to deactivate the corresponding one or more activated power control offset parameter values.

[0302] Optionally, fourth information is received from the master network device, where the fourth information is used to instruct deactivation of one or more power control offset parameter values ​​among multiple power control offset parameter values ​​configured by the master network device for the terminal device.

[0303] Accordingly, the master network device sends fourth information.

[0304] Optionally, the fourth information is carried in MAC CE signaling.

[0305] In one possible implementation, after receiving the fourth information, the terminal device no longer applies the power control offset parameter value indicated by the fourth information when determining the transmission power of the uplink signal channel or reference signal.

[0306] S603: Receive second information from the primary network device, where the second information is used to indicate an application power offset parameter value.

[0307] Accordingly, the master network device sends the second information.

[0308] Exemplarily, sending the second information may also be described as indicating the second information, or may also be described as transmitting the second information.

[0309] Exemplarily, receiving the second information may also be described as acquiring the second information.

[0310] Optionally, the second information is carried in downlink control information (DCI) signaling.

[0311] Exemplarily, the second information indicates application of the power offset parameter value, which can also be described as the second information being used to indicate that the power offset parameter value is effective.

[0312] Optionally, before determining the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value, second information is received from the primary network device.

[0313] Optionally, when the third information indicates activation of one or more configured power control offset parameter values, the second information is used to indicate application of one power control offset parameter value among the one or more activated power control offset parameter values.

[0314] Optionally, when the third information indicates one or more activated configured power control offset parameter values, the second information is further used to indicate any one of the one or more activated power control offset parameter values.

[0315] Specifically, when determining the transmit power of the uplink signal for the secondary network device, the power control offset parameter value is applied.

[0316] It should be noted that when the second information indicates the application of the power control offset parameter value, one possible situation is that the uplink signal of the terminal device is a transmission to the auxiliary network device, and the path loss amount at this time is determined according to the second path loss amount, or the path loss compensation factor at this time is determined according to the second path loss compensation factor.

[0317] The second path loss amount is determined based on the first path loss amount and an offset value of the path loss amount; and the second path loss compensation factor is determined based on the first path loss compensation factor and an offset value of the path loss compensation factor.

[0318] S604: In response to the second information, determine the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value.

[0319] Specifically, when the second information indicates that one or more power control offset parameter values ​​among the multiple power control offset parameter values ​​configured for activation by the third information are effective or applied, the transmission power of the uplink signal for the auxiliary network device is further determined based on one power control offset parameter value among the one or more power control offset parameter values ​​indicated by the second information.

[0320] Specifically, the transmit power of the uplink signal for the secondary network device is determined according to the power control offset parameter value, which is similar to the above step S302 and will not be described again here.

[0321] Optionally, when the second information indicates that the power control offset parameter value is not effective or not applied, a possible situation is that the uplink signal of the terminal device is a transmission to the main network device, and the path loss amount at this time is determined according to the first path loss amount, or the path loss compensation factor at this time is determined according to the first path loss compensation factor.

[0322] The first path loss is determined based on the downlink reference signal transmit power and the downlink reference signal receive power.

[0323] In an embodiment of the present application, by sequentially receiving first information indicating multiple power control offset parameter values, third information indicating one or more power control offset parameter values ​​of the activation configuration, indicating the application of one or more power control offset parameter values, and second information further indicating one power control offset parameter value among multiple power control offset parameter values, the power control offset parameter value is applied to determine the transmission power of the uplink signal for the auxiliary network device, thereby realizing the determination of the transmission power of the uplink signal for the auxiliary network device.

[0324] FIG7 is a schematic flow chart of a power control method provided in another embodiment of the present application. As shown in FIG7 , the power control method includes the following steps:

[0325] S701: Receive fifth information from a network device, where the fifth information is used to indicate a time range for applying a power control offset parameter value.

[0326] Accordingly, the master network device sends fifth information.

[0327] Exemplarily, sending the fifth information may also be described as indicating the fifth information, or may also be described as transmitting the fifth information.

[0328] Exemplarily, receiving the fifth information may also be described as obtaining the fifth information.

[0329] Optionally, the fifth information is carried in RRC signaling.

[0330] Exemplarily, the time range for indicating the application of the power control offset parameter value may also be described as the time range for the power control offset parameter value to take effect.

[0331] It can be understood that the power control offset parameter value is only valid or applicable within this time range.

[0332] It should be noted that, within the time range of applying the power control offset parameter value, the uplink signal of the terminal device may be an uplink signal for the auxiliary network device.

[0333] In some embodiments, the fifth information may also be used to indicate a time range in which the power control offset parameter value is not effective or applied, that is, the power control offset parameter value is not applied within the time range, or the power control offset parameter value is not effective within the time range.

[0334] It should be noted that within the time range where the power control offset parameter value is not applied, the uplink signal of the terminal device may be an uplink signal for the main network device.

[0335] S702 : In response to the fifth information, determine the transmit power of the uplink signal for the secondary network device within a time range according to the power control offset parameter value.

[0336] The transmission power of the uplink signal for the secondary network device is determined according to the power control offset parameter value, which is similar to the above step S302 and will not be repeated here.

[0337] Optionally, the master network device is configured with a timer, and the timer is set with an upper threshold value.

[0338] Optionally, when the power control offset parameter value and / or time range configured by the master network device is received, the timer starts timing.

[0339] In some embodiments, when the timer does not reach an upper threshold value, the terminal device applies the above-mentioned power control offset parameter value; after the timer reaches an upper threshold value, the terminal device no longer applies the above-mentioned power offset parameter value.

[0340] It should be noted that in an embodiment of the present application, the main network device may predict the movement trajectory of the terminal device. Therefore, the main network device can configure the above-mentioned time range, and when the timer does not reach an upper threshold, the terminal device transmits an uplink signal to the auxiliary network device; after the timer reaches an upper threshold, the terminal device transmits an uplink signal to the main network device.

[0341] Accordingly, when the fifth information indicates a time range in which the power control offset parameter value is not applied, in some embodiments, the terminal device does not apply the power control offset parameter value if the timer does not reach an upper threshold; and applies the power offset parameter value after the timer reaches an upper threshold. That is, within the time range configurable by the primary network device, if the timer does not reach an upper threshold, the terminal device transmits an uplink signal to the primary network device; and after the timer reaches an upper threshold, the terminal device transmits an uplink signal to the secondary network device.

[0342] In an embodiment of the present application, by obtaining fifth information for indicating a time range for applying a power control offset parameter value, further, within the indicated time range, the transmit power of the uplink signal for the auxiliary network device is determined according to the power control offset parameter value, so as to achieve determination of the transmit power of the uplink signal for the auxiliary network device.

[0343] It should be noted that in the power control method provided in the embodiment of the present application, in order to enhance the rate of the uplink signal, as shown in the communication system architecture diagram shown in Figure 2a above, the terminal device may transmit uplink signals to the main network device and the auxiliary network device at the same time. Therefore, the main network device needs to simultaneously indicate two sets of power configuration parameters to the terminal device for uplink signal transmission.

[0344] Specifically, the network device may simultaneously indicate two sets of power configuration parameters for uplink signal channel or uplink reference signal transmission, wherein one set of power configuration parameters is configured with a power control offset parameter value. Furthermore, the primary network device indicates a transmission status indication associated with the power control offset parameter value to the terminal device, and further applies the power control offset parameter value of the transmission status indication to determine the transmit power of the uplink signal for the secondary network device.

[0345] The power control method applicable to the above scenario provided in an embodiment of the present application is described in detail below with reference to FIG8 .

[0346] FIG8 is a schematic flow chart of a power control method according to another embodiment of the present application. As shown in FIG8 , the power control method includes the following steps:

[0347] S801: Receive sixth information from a primary network device, where the sixth information is used to indicate a transmission status indicator.

[0348] Accordingly, the master network device sends sixth information.

[0349] Exemplarily, sending the sixth information may also be described as indicating the sixth information, or may also be described as transmitting the sixth information.

[0350] Exemplarily, receiving the sixth information may also be described as obtaining the sixth information.

[0351] Exemplarily, the transmission status indicator may be expressed as a transmission configuration indicator, ie, a transmission configuration indicator (TCI).

[0352] It is understood that the transmission status indicator indicates status information for the transmission of an uplink signal or a downlink signal. The transmission status indicator in the embodiment of the present application indicates uplink signal status information. Specifically, it can be an uplink signal status indication for a primary network device and / or an uplink signal status indication for a secondary network device.

[0353] Optionally, the transmission state indicator is used to associate a power control offset parameter value.

[0354] Exemplarily, a transmission status indicator is associated with at least one of the above-mentioned sets of power configuration parameters.

[0355] Optionally, the master network device supports both sending of downlink signals and receiving of uplink signals.

[0356] Specifically, the master network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device.

[0357] Optionally, the sixth information is carried in relevant signaling for configuring a scheduling-free PUSCH, and / or the sixth information is carried in DCI signaling for scheduling uplink transmission.

[0358] Optionally, the transmission status indicator includes a first transmission status indicator and / or a second transmission status indicator.

[0359] Optionally, the first transmission status indicator corresponds to an uplink signal, and / or the second transmission status indicator corresponds to an uplink signal. The uplink signal may be an uplink signal for the primary network device or an uplink signal for the secondary network device.

[0360] In some embodiments, the first transmission status indicator corresponds to an uplink signal; in some embodiments, the second transmission status indicator corresponds to an uplink signal; in some embodiments, the first transmission status indicator corresponds to an uplink signal, and the second transmission status indicator corresponds to an uplink signal.

[0361] Exemplarily, the first transmission status indicator may be an uplink signal corresponding to the primary network device, and the second transmission status indicator may be an uplink signal corresponding to the secondary network device; accordingly, the first transmission status indicator may be an uplink signal corresponding to the secondary network device, and the second transmission status indicator may be an uplink signal corresponding to the primary network device.

[0362] Optionally, the first transmission state indicator is associated with a power control offset parameter value, and / or the second transmission state indicator is associated with a power control offset parameter value.

[0363] In some embodiments, the first transmission state indicator is associated with a power control offset parameter value; in some embodiments, the second transmission state indicator is associated with a power control offset parameter value; in some embodiments, the first transmission state indicator is associated with a power control offset parameter value, and the second transmission state indicator is associated with a power control offset parameter value.

[0364] S802: Determine the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value.

[0365] Optionally, when the first transmission status indicator is associated with a power control offset parameter value, the first transmission status indicator is used to determine the uplink signal for the secondary network device. Further, when determining the transmission power of the uplink signal for the secondary network device, the power control offset parameter value is applied, that is, the transmission power of the uplink signal for the secondary network device is determined based on the power control offset parameter value.

[0366] Correspondingly, when the second transmission status indicator is associated with a power control offset parameter value, the second transmission status indicator is used to determine the uplink signal for the secondary network device. Furthermore, when determining the transmit power of the uplink signal for the secondary network device, the power control offset parameter value is applied, that is, the transmit power of the uplink signal for the secondary network device is determined based on the power control offset parameter value.

[0367] It should be noted that the signals transmitted by the terminal device to the primary network device and the secondary network device may be scheduled by different DCIs. The DCIs from different network devices are each associated with an index information.

[0368] Optionally, the transmission status indicator is associated with a first preset index value.

[0369] Specifically, the first transmission status indicator is associated with the first preset index value, or the second transmission status indicator is associated with the first preset index value.

[0370] Optionally, the power control offset parameter value is associated with a second preset index value.

[0371] When the terminal device determines the transmit power of the uplink signal for the auxiliary network device according to the power control offset parameter value associated with the transmission status indicator, the specific implementation method is as follows:

[0372] In one implementation, the first transmission status indicator is associated with a power control offset parameter value, and the first transmission status indicator is associated with a first preset index value, and the power control offset parameter value is associated with a second preset index value. When the first preset index value and the second preset index value are the same, the terminal device applies the above-mentioned power control offset parameter value when determining the transmission power of the uplink channel scheduled by the DCI, such as PUSCH or PUCCH, or the uplink reference signal.

[0373] Correspondingly, the second transmission state indicator is associated with a power control offset parameter value, and the second transmission state indicator is associated with a first preset index value, and the power control offset parameter value is associated with a second preset index value. When the first preset index value and the second preset index value are the same, the terminal device applies the above-mentioned power control offset parameter value when determining the transmission power of the uplink channel scheduled by the DCI, such as PUSCH or PUCCH, or the uplink reference signal.

[0374] In another implementation, the first transmission status indicator is associated with a first preset index value. When the first preset index value and the preset index value are the same, the terminal device applies the above-mentioned power control offset parameter when determining the transmission power of the uplink channel scheduled by the DCI, such as PUSCH or PUCCH, or the uplink reference signal.

[0375] Correspondingly, the second transmission status indicator is associated with the first preset index value. When the first preset index value and the preset index value are the same, the terminal device applies the above-mentioned power control offset parameter when determining the transmission power of the uplink channel scheduled by the DCI, such as PUSCH or PUCCH, or the uplink reference signal.

[0376] Exemplarily, the first preset index value, the second preset index value, and the preset index value may be 1 or 0, etc.

[0377] The above-mentioned terminal device applies the above-mentioned power control offset parameter when determining the transmission power of the uplink channel scheduled by the DCI, such as PUSCH or PUCCH, or the uplink reference signal. The specific implementation method is similar to the above-mentioned step S302 and will not be repeated here.

[0378] In an embodiment of the present application, by obtaining sixth information indicating a transmission status indicator, further, according to a power control offset parameter associated with the transmission status indicator, the transmission power of the uplink signal is determined to achieve determination of the transmission power of the uplink signal for the auxiliary network device.

[0379] It should be noted that the power control method provided in the embodiment of the present application is also applicable to scenarios where no RRC connection is established between the terminal device and the network device, which will be described in detail below in conjunction with specific embodiments.

[0380] FIG9 is a schematic flow chart of a power control method according to another embodiment of the present invention. As shown in FIG9 , the power control method includes the following steps:

[0381] S901: Receive first information from a primary network device, where the first information is used to indicate a power control offset parameter value for an uplink signal of a secondary network device.

[0382] Accordingly, the master network device sends the first information.

[0383] Exemplarily, sending the first information may also be described as indicating the first information, or may also be described as transmitting the first information.

[0384] Exemplarily, receiving the first information may also be described as acquiring the first information.

[0385] Optionally, the master network device generates the first information when sending the first information. Specifically, the master network device generates the first information according to the behavior of the terminal device detected by the master network device.

[0386] Exemplarily, generating the first information may also be described as determining the first information.

[0387] Optionally, the first information is carried in a system information block (SIB).

[0388] It is understandable that when the terminal device is not in the connected state, the power control offset parameter value cannot be sent to the terminal device through dedicated signaling such as RRC signaling, then the network device can send the power control offset parameter value to the terminal device by broadcasting.

[0389] Specifically, the power control offset parameter value carried in the system information can be used to determine the power of at least one of the following signals: a physical random access channel (PRACH) or a PUSCH transmitted during a random access process, such as Msg3 or MsgA.

[0390] Optionally, the primary network device supports both sending of downlink signals and receiving of uplink signals, and the secondary network device supports receiving of uplink signals.

[0391] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0392] Optionally, the uplink signal of the terminal device may include a signal corresponding to an uplink channel and / or an uplink reference signal.

[0393] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH and PRACH.

[0394] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for a non-codebook, an uplink reference signal for a codebook, or an uplink reference signal for beam management.

[0395] Optionally, the power control offset parameter value includes an offset value of a path loss amount of an uplink signal and / or an offset value of a path loss compensation factor of an uplink signal.

[0396] S902: Determine the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value.

[0397] The specific implementation method is similar to the above step S302 and will not be repeated here.

[0398] In an embodiment of the present application, the power control offset parameter value for the uplink signal is carried by the SIB, and the transmission power of the uplink signal for the auxiliary network device is further determined based on the power control offset parameter value, so as to realize the determination of the transmission power of the uplink signal for the auxiliary network device when the terminal device and the network device have not established an RRC connection.

[0399] It should be noted that in uplink signal transmit power control, the uplink signal is typically associated with a closed-loop index that determines the application scope of the power control command. In one embodiment, the power control command is associated with a closed-loop index to determine the adjustment of the uplink signal transmit power, wherein the closed-loop index associated with the uplink signal is the same as the closed-loop index associated with the power control command.

[0400] The power control method provided in the embodiment of the present application is applicable to the scenario of determining and adjusting the transmission power of the uplink signal by associating a power control command with a closed-loop index.

[0401] FIG10 is a schematic flow chart of a power control method according to another embodiment of the present invention. As shown in FIG10 , the power control method includes the following steps:

[0402] S110: Receive first information from a primary network device, where the first information is used to indicate a power control offset parameter value for an uplink signal of a secondary network device.

[0403] Accordingly, the master network device sends the first information.

[0404] Exemplarily, sending the first information may also be described as indicating the first information, or may also be described as transmitting the first information.

[0405] Optionally, the master network device generates the first information when sending the first information. Specifically, the master network device generates the first information according to the behavior of the terminal device detected by the master network device.

[0406] Exemplarily, generating the first information may also be described as determining the first information.

[0407] Exemplarily, receiving the first information may also be described as acquiring the first information.

[0408] Optionally, the power control offset parameter value is associated with a preset closed-loop index.

[0409] Exemplarily, the preset closed-loop index may be 1 or 0, etc.

[0410] It can be understood that the preset closed-loop index is specifically used for transmitting power control of uplink signals transmitted to the secondary network device.

[0411] Optionally, the primary network device supports both sending of downlink signals and receiving of uplink signals, and the secondary network device supports receiving of uplink signals.

[0412] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0413] Optionally, the uplink signal of the terminal device may include a signal corresponding to an uplink channel and / or an uplink reference signal.

[0414] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH and PRACH.

[0415] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for a non-codebook, an uplink reference signal for a codebook, or an uplink reference signal for beam management.

[0416] Optionally, the power control offset parameter value includes an offset value of a path loss amount of an uplink signal and / or an offset value of a path loss compensation factor of an uplink signal.

[0417] S111: Receive a power control command from a master network device.

[0418] Accordingly, the master network device sends a power control command.

[0419] Exemplarily, the sending power control command may also be described as a sending power control command, or may also be described as an indicating power control command.

[0420] Exemplarily, receiving a power control command may also be described as acquiring a power control command.

[0421] Optionally, the power control command is used to determine and adjust the transmission power of the uplink signal.

[0422] Optionally, the terminal device may obtain multiple power control commands.

[0423] S112: If the power control command is associated with a preset closed-loop index, determine the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value.

[0424] It can be understood that when the power control command is associated with a preset closed-loop index and the power control offset parameter value is associated with a preset closed-loop index, that is, when the closed-loop index associated with the power control command is consistent with the closed-loop index associated with the power control offset parameter value, the transmission power of the uplink signal for the auxiliary network device is determined according to the power control offset parameter value.

[0425] Specifically, the transmit power of the uplink signal for the secondary network device is determined according to the power control offset parameter value. The specific implementation method is similar to the above step S302 and will not be repeated here.

[0426] Optionally, the power control offset parameter value is associated with cumulative power control.

[0427] It should be noted that when the terminal device obtains the power control offset parameter value reconfigured by the master network device, the accumulated power control associated with the power control offset parameter needs to be reset, that is, the accumulated power control part needs to be accumulated again from zero.

[0428] It should be noted that the reconfiguration of the power control offset parameter may be due to the terminal device sending a move, thereby making the original accumulated power control part no longer valid, and further causing the accumulated power control part associated with the power control offset parameter to be cleared to 0.

[0429] In one possible implementation, the main network device sends a reconfigured power control offset parameter value, and accordingly, the terminal device obtains the reconfigured power control offset parameter value; further, the terminal device determines the transmission power of the uplink signal for the auxiliary network device based on the reconfigured power control offset parameter value, and resets the cumulative power adjustment amount associated with the power control offset parameter value.

[0430] In an embodiment of the present application, by obtaining first information and a power control command for indicating a power control offset parameter value for a secondary network device, and when a closed-loop index associated with the power control command is consistent with a closed-loop index associated with the power control offset parameter value, the transmit power of the uplink signal for the secondary network device is determined according to the power control offset parameter value, so as to achieve determination of the transmit power of the uplink signal for the secondary network device.

[0431] The communication method of the embodiment of the present application has been described above. The device for executing the above method provided by the embodiment of the present application is described below. Those skilled in the art will understand that the method and device can be combined and referenced with each other, and the relevant device provided by the embodiment of the present application can perform the steps in the above list sorting method.

[0432] FIG11 is a schematic diagram of a terminal device provided in an embodiment of the present application. As shown in FIG11 , the terminal device 11 includes a transceiver unit 141 and a processing unit 142 .

[0433] The terminal device provided in this embodiment is used to implement the technical solution of the terminal device in the aforementioned method embodiment. Its implementation principle and technical effects are similar and will not be repeated here.

[0434] FIG12 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. As shown in FIG12 , the network device 12 includes a transceiver unit 121 .

[0435] The network device provided in this embodiment may be a core network device or an access network device, and is used to implement the technical solutions in the aforementioned method embodiments. The implementation principles and technical effects are similar and will not be described in detail here.

[0436] It should be noted that the module names involved in the embodiments of the present application can be defined as other names as long as the functions of each module can be achieved, and there is no specific restriction on the names of the modules.

[0437] FIG13 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. As shown in FIG13 , the electronic device 130 includes: at least one processor 131, a memory 132, a communication interface 133, and a system bus 134. The memory 132 and the communication interface 133 are connected to the processor 131 via the system bus 134 and communicate with each other. The memory 132 is used to store instructions, the communication interface 133 is used to communicate with other devices, and the processor 131 is used to call instructions in the memory to execute the method steps provided in the above method embodiment. The specific implementation methods and technical effects are similar and will not be repeated here.

[0438] The system bus 134 mentioned in FIG13 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The system bus 134 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, the figure shows only one thick line, but this does not necessarily mean that there is only one bus or only one type of bus.

[0439] The communication interface 133 is used to implement communication between the database access apparatus and other devices (such as clients, read-write libraries, and read-only libraries).

[0440] The memory 132 may include a random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage.

[0441] The processor 131 can be a general-purpose processor, including a central processing unit, a network processor (NP), etc.; a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0442] The embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, it is used to implement the method steps in the above method embodiment. The method described in the above embodiment can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the function can be stored as one or more instructions or codes on a computer-readable medium or transmitted on a computer-readable medium. Computer-readable media can include computer storage media and communication media, and can also include any medium that can transfer a computer program from one place to another. The storage medium can be any target medium that can be accessed by a computer.

[0443] In one possible implementation, computer-readable media may include RAM, ROM, compact disc read-only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium designed to carry or store the desired program code in the form of instructions or data structures and accessible by a computer. Furthermore, any connection is appropriately referred to as a computer-readable medium. For example, if software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. Disk and disc as used herein include optical disc, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks typically reproduce data magnetically, while optical discs reproduce data optically using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0444] The present application also provides a computer program product, which includes a computer program. When the computer program is executed, the computer executes the method steps in the above method embodiment.

[0445] An embodiment of the present application also provides a chip system, including at least one processor and a communication interface, the communication interface and the at least one processor are interconnected through lines, and the at least one processor is used to run computer programs or instructions to execute the method steps in the above method embodiment.

[0446] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0447] The present application embodiment is described with reference to the flow chart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present application.It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processing unit of general-purpose computer, special-purpose computer, embedded processing machine or other programmable device to produce a machine, so that the instruction executed by the processing unit of computer or other programmable data processing device produces the device for realizing the function specified in one flow chart flow or multiple flows and / or one block or multiple blocks of block diagram.

[0448] The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power control method, performed by a terminal device, characterized in that: include: receiving first information from a primary network device, where the first information is used to indicate a power control offset parameter value for an uplink signal of a secondary network device, wherein the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, and the secondary network device supports receiving uplink signals from the terminal device; The transmission power of the uplink signal for the secondary network device is determined according to the power control offset parameter value.

2. The method according to claim 1, characterized in that The power control offset parameter value includes an offset value of a path loss amount of an uplink signal of the auxiliary network device and / or an offset value of a path loss compensation factor of an uplink signal of the auxiliary network device.

3. The method according to claim 1, characterized in that The determining, according to the power control offset parameter value, the transmit power of the uplink signal for the secondary network device includes: determining, based on the offset value of the path loss amount of the uplink signal of the secondary network device and the first path loss amount, a second path loss amount related to the transmit power of the uplink signal of the secondary network device; or determining, based on the offset value of the path loss compensation factor of the uplink signal of the secondary network device and the first path loss compensation factor, a second path loss compensation factor related to the transmit power of the uplink signal of the secondary network device; determining a transmit power of the uplink signal for the secondary network device according to the second path loss amount and / or the second path loss compensation factor; The first path loss amount is a path loss amount for the master network device, and the first path loss compensation factor is a path loss compensation factor for the master network device.

4. The method according to any one of claims 1 to 3, characterized in that Before determining the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value, the method further includes: Second information is received from the primary network device, where the second information is used to indicate application of the power control offset parameter value.

5. The method according to any one of claims 1 to 4, characterized in that Also includes: Third information is received from the master network device, where the third information is used to activate one or more power control offset parameter values among a plurality of power control offset parameter values configured by the master network device for the terminal device.

6. The method according to claim 5, characterized in that Also includes: Fourth information is received from the master network device, where the fourth information is used to instruct deactivation of one or more power control offset parameter values among a plurality of power control offset parameter values configured by the master network device for the terminal device.

7. The method according to any one of claims 1 to 6, characterized in that Also includes: receiving fifth information from the primary network device, where the fifth information is used to indicate a time range for applying the power control offset parameter value; In response to the fifth information, within the time range, according to the power control offset parameter value, a transmit power of an uplink signal for the secondary network device is determined.

8. The method according to claims 1 to 7, characterized in that Also includes: receiving sixth information from the master network device, wherein the sixth information is used to indicate a transmission status indicator; The transmission status indicator includes a first transmission status indicator and / or a second transmission status indicator, the first transmission status indicator is associated with a power control offset parameter value, and / or the second transmission status indicator is associated with a power control offset parameter value.

9. The method according to claim 8, characterized in that The first transmission status indicator and the second transmission status indicator respectively correspond to an uplink signal, and determining the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value includes: According to the power control offset parameter value, a transmit power of an uplink signal for the secondary network device is determined, where the uplink signal is an uplink signal corresponding to a transmission status indicator associated with the power control offset parameter value.

10. The method according to claim 8, characterized in that The transmission status indicator is associated with a first preset index value, and the determining, according to the power control offset parameter value, the transmit power of the uplink signal for the secondary network device includes: If the second preset index value associated with the power control offset parameter value is the same as the first preset index value, the transmit power of the uplink signal for the secondary network device is determined according to the power control offset parameter value.

11. The method according to any one of claims 1 to 10, characterized in that Associating the power control offset parameter value with a preset closed-loop index, and determining the transmit power of the uplink signal for the secondary network device according to the power control offset parameter value, includes: receiving a power control command; If the power control command is associated with the preset closed-loop index, the transmit power of the uplink signal for the secondary network device is determined according to the power control offset parameter value.

12. A power control method, performed by a master network device, characterized in that: include: generating first information, where the first information is used to indicate a power control offset parameter value for an uplink signal of a secondary network device, where the power control offset parameter value is used to determine a transmit power of the uplink signal of the secondary network device; The first information is sent.

13. The method according to claim 12, characterized in that The power control offset parameter value includes an offset value of a path loss amount of an uplink signal of the auxiliary network device and / or an offset value of a path loss compensation factor of an uplink signal of the auxiliary network device.

14. The method according to claim 12 or 13, characterized in that Also includes: Second information is sent, where the second information is used to indicate the application of the power control offset parameter value.

15. The method according to any one of claims 12 to 14, characterized in that Also includes: Sending third information, where the third information is used to activate one or more power control offset parameter values among multiple power control offset parameter values configured by the main network device for the terminal device.

16. The method according to claim 15, characterized in that Also includes: Send fourth information, where the fourth information is used to indicate deactivation of one or more power control offset parameter values among multiple power control offset parameter values configured by the main network device for the terminal device.

17. The method according to any one of claims 12 to 16, characterized in that Also includes: Fifth information is sent, where the fifth information is used to indicate a time range for applying the power control offset parameter value.

18. The method according to any one of claims 12 to 17, characterized in that Also includes: sending sixth information, where the sixth information is used to indicate a transmission status indicator; The transmission status indicator includes a first transmission status indicator and / or a second transmission status indicator, the first transmission status indicator is associated with a power control offset parameter value, and / or the second transmission status indicator is associated with a power control offset parameter value.

19. The method according to claim 18, characterized in that The transmission status indicator is associated with a first preset index value, and the power control offset parameter value is associated with a second preset index value.

20. The method according to any one of claims 12 to 19, characterized in that The power control offset parameter value is associated with a preset closed-loop index, and the method further includes: A power control command is sent, where the power control command is associated with the preset closed-loop index.

21. An electronic device, characterized in that: include: processor and memory; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to perform the method according to any one of claims 1 to 11, or the method according to any one of claims 12 to 20.

22. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction. When the computer program or instruction is executed by a computer, the method according to any one of claims 1 to 11 is implemented, or the method according to any one of claims 12 to 20 is implemented.

23. A chip system, characterized in that: The method comprises at least one processor and a communication interface, wherein the communication interface and the at least one processor are interconnected via a line, and the at least one processor is used to run a computer program or instruction to execute the method according to any one of claims 1 to 11, or to execute the method according to any one of claims 12 to 20.

24. A computer program product, characterized in that The computer program product comprises instructions, and when the instructions are executed by a computer, the method according to any one of claims 1 to 11 is implemented, or the method according to any one of claims 12 to 20 is implemented.

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