Power control method, device, and storage medium

Abstract

This application provides a power control method, device, and storage medium, relating to the field of communication technology. A terminal device receives first information from a primary network device, indicating a power control offset parameter value for uplink signals from a secondary network device. Based on this power control offset parameter value, the terminal device determines the transmission power of uplink signals from a secondary network device that does not support downlink signal transmission.

Description

[0001] This application is a divisional application. The original application has the application number 202410178078.6 and the original application date is February 8, 2024. The entire contents of the original application are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to power control methods, devices and storage media. Background Technology

[0003] In wireless communication, as the frequency used for signal transmission increases, the signal coverage decreases. In particular, the limited transmit power of terminal devices makes limited uplink signal coverage a major problem. One solution to enhance uplink coverage is to deploy more sites on the network side, but this approach is costly. To reduce deployment costs, some sites on the network side can support fewer functions. In some scenarios, macro base stations can simultaneously support downlink signal transmission and uplink reception, while micro base stations supporting only uplink reception can be deployed to enhance uplink coverage, thus saving deployment costs.

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

[0005] Therefore, determining the transmission power of the uplink signal is a problem that urgently needs to be solved. Summary of the Invention

[0006] This application provides a power control method, device, and storage medium for determining the transmission power of uplink signals for a secondary network device that supports uplink signal reception.

[0007] In a first aspect, embodiments of this application provide a power control method executed by a terminal device, comprising: receiving first information from a primary network device, the first information indicating a power control offset parameter value for an uplink signal to 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 determining the transmission power of the uplink signal to the secondary network device based on the power control offset parameter value. In other words, the transmission power of the uplink signal to the secondary network device is determined by the power control offset parameter value for the uplink signal indicated by the primary network device.

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

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

[0010] In an optional embodiment of the first aspect, before determining the transmission 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 indicating the 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 further applies the power control offset parameter value to determine the transmission power of the uplink signal for the secondary network device upon receiving information indicating the application of the power control offset parameter value.

[0011] In an optional embodiment of the first aspect, the method further includes: receiving third information from a 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. That is, the plurality of power control offset parameter values ​​configured by the master network device for the terminal device can only be applied after further activation.

[0012] In an alternative embodiment of the first aspect, fourth information is received from the primary network device, the fourth information being used to instruct the deactivation of one or more power control offset parameter values ​​among a plurality of power control offset parameter values ​​configured by the primary network device for the terminal device, that is, the power control offset parameter value can be deactivated when it is not necessary to determine the transmission power of the uplink signal for the secondary network device.

[0013] In an alternative embodiment of the first aspect, fifth information is received from the primary network device, the fifth information indicating a time range for applying a power control offset parameter value; in response to the fifth information, within the time range, the transmission power of the uplink signal for the secondary network device is determined based on the power control offset parameter value. That is, the power control offset parameter value can only be applied within the time range indicated by the primary network device to determine the transmission power of the uplink signal for the secondary network device.

[0014] In an alternative embodiment of the first aspect, a sixth piece of information is received from the main network device, the sixth piece of information being 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, the first transmission status indicator being associated with a power control offset parameter value, and / or the second transmission status indicator being associated with a power control offset parameter value.

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

[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 secondary 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 secondary network device is determined according to the power control offset parameter value.

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

[0018] Secondly, embodiments of this application provide a power control method executed by a primary network device, comprising: generating first information, the first information being used to indicate a power control offset parameter value for an uplink signal of a secondary network device, the power control offset parameter value being used to determine the transmission power of the uplink signal of the secondary network device; and transmitting the first information.

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

[0020] In an alternative embodiment of the second aspect, the method further includes: sending second information for indicating an applied power control offset parameter value.

[0021] In an alternative embodiment of the second aspect, the method further includes: sending third information for activating 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.

[0022] In an alternative embodiment of the second aspect, the method further includes: sending fourth information, the fourth information being used to instruct the 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.

[0023] In an alternative embodiment of the second aspect, the method further includes: sending a fifth message indicating a time range for applying power control offset parameter values.

[0024] In an alternative embodiment of the second aspect, the method further includes: sending a sixth message for indicating a transmission status indicator; wherein the transmission status indicator includes a first transmission status indicator and / or a second transmission status indicator, the first transmission status indicator being associated with a power control offset parameter value, and / or the second transmission status indicator being associated with a power control offset parameter value.

[0025] In an alternative 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 alternative 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, which is associated with the preset closed-loop index.

[0027] Thirdly, embodiments of this application provide a terminal device, including: a transceiver unit, configured to receive first information from a primary network device, the first information indicating a power control offset parameter value for an uplink signal to 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, configured to determine the transmission power of the uplink signal to the secondary network device based on the power control offset parameter value.

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

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

[0030] In an alternative embodiment of the third aspect, the transceiver unit is further configured to receive second information from the main network device, the second information being used to indicate the applied power control offset parameter value.

[0031] In an alternative embodiment of the third aspect, the transceiver unit is further configured to receive third information from the main 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 main network device for the terminal device.

[0032] In an alternative 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 instruct the 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.

[0033] In an alternative embodiment of the third aspect, the transceiver unit is further configured to receive fifth information from the primary network device, the fifth information indicating a time range for applying power control offset parameter values; the processing unit is further configured to, in response to the fifth information, determine, within the time range, the transmission power of the uplink signal for the secondary network device based on the power control offset parameter values.

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

[0035] In an optional embodiment of the third aspect, the first transmission status indicator and the second transmission status indicator each correspond to an uplink signal, and the processing unit is further configured to determine the transmission power of the uplink signal for the auxiliary network device based on the power control offset parameter value, wherein the uplink signal is the uplink signal corresponding to the transmission status indicator associated with the 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 further configured to determine the transmission power of the uplink signal for the secondary network device based on 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 further configured to receive a power control command; the processing unit is further configured to determine the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value if the power control command is associated with the preset closed-loop index.

[0038] Fourthly, embodiments of this application provide a network device including a transceiver unit, which is configured to: generate first information, the first information being used to indicate a power control offset parameter value for an uplink signal of a secondary network device, the power control offset parameter value being used to determine the transmission power of the uplink signal of the secondary network device; and transmit the first information.

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

[0040] In an alternative embodiment of the fourth aspect, the method further includes: sending a second message indicating an applied power control offset parameter value.

[0041] In an alternative embodiment of the fourth aspect, the transceiver unit is further configured to send third information, 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.

[0042] In an alternative embodiment of the fourth aspect, the transceiver unit is further configured to send fourth information, the fourth information being used to instruct the 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.

[0043] In an alternative embodiment of the fourth aspect, the transceiver unit is further configured to transmit fifth information, which is used to indicate the time range of the applied power control offset parameter value.

[0044] In an optional embodiment of the fourth aspect, the transceiver unit is further configured to send sixth information, the sixth information being 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, the first transmission status indicator being associated with a power control offset parameter value, and / or the second transmission status indicator being associated with a power control offset parameter value.

[0045] In an alternative 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 alternative 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 configured to send a power control command associated with the preset closed-loop index.

[0047] Fifthly, embodiments of this application provide an electronic device, including a processor and a memory. The memory stores computer execution instructions, and the processor executes the computer execution instructions stored in the memory, causing the electronic device to perform the power control method provided in the first aspect, or causing the electronic device to perform the power control method provided in the second aspect.

[0048] In a sixth aspect, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the power control method provided in the first aspect, or causes an electronic device to execute the power control method provided in the second aspect.

[0049] In a seventh aspect, this application provides a chip system including at least one processor and a communication interface, the communication interface and at least one processor being interconnected via a line, the at least one processor being used to run a computer program or instructions to execute the power control method provided in the first aspect, or to cause an electronic device to execute the power control method provided in the second aspect.

[0050] Eighthly, embodiments of this application provide a computer program product, including a computer program that, when run, causes a computer to execute the power control method provided in the first aspect, or causes an electronic device to execute the power control method provided in the second aspect.

[0051] This application provides a power control method, device, and storage medium. By receiving a power control offset parameter value sent by a primary network device to indicate the uplink signal for a secondary network device, the transmission 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. Attached Figure Description

[0052] Figure 1 A communication system architecture diagram provided for an embodiment of this application;

[0053] Figure 2 Another communication system architecture diagram provided in the embodiments of this application;

[0054] Figure 3 A schematic flowchart illustrating a power control method provided in an embodiment of this application;

[0055] Figure 4 A schematic flowchart illustrating a power control method provided in yet another embodiment of this application;

[0056] Figure 5 A schematic flowchart illustrating a power control method provided in another embodiment of this application;

[0057] Figure 6 A schematic flowchart illustrating a power control method provided in another embodiment of this application;

[0058] Figure 7 A schematic flowchart illustrating a power control method provided in another embodiment of this application;

[0059] Figure 8A schematic flowchart illustrating a power control method provided in another embodiment of this application;

[0060] Figure 9 A schematic flowchart illustrating a power control method provided in another embodiment of this application;

[0061] Figure 10 A schematic flowchart illustrating a power control method provided in another embodiment of this application;

[0062] Figure 11 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application;

[0063] Figure 12 This is a schematic diagram of the network device provided in an embodiment of this application;

[0064] Figure 13 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

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

[0066] To facilitate understanding, the following points will be explained first:

[0067] First: In the embodiments of this application, the terms "first" and "second" are used to distinguish identical or similar items with essentially the same function and purpose. For example, "first chip" and "second chip" are used only to distinguish different chips and do not limit their order of execution. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that "first" and "second" do not necessarily imply that they are different.

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

[0069] Third: In the embodiments of this application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer 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, and c can be single or multiple.

[0070] To better understand the power control method provided in the embodiments of this application, the communication system architecture of the embodiments of this application will be described first below.

[0071] For example, Figure 1 This is a communication system architecture diagram provided for an embodiment of this application. Figure 1 As shown, the communication system 10 includes a terminal device 101 and a network device 102, and the terminal device 101 and the network device 102 communicate wirelessly.

[0072] The terminal device involved in the embodiments of this application can also be called a terminal, which can be a device with wireless transceiver capabilities. It can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons, and satellites). The terminal device can be a user equipment (UE), where the UE includes handheld devices, vehicle-mounted devices, wearable devices, or computing devices with wireless communication capabilities. For example, 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 autonomous 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 so on. In this embodiment of the application, the device for implementing the function of the terminal device can be the terminal device itself; or it can be a device that enables the terminal device to implement the function, such as a chip system, which can be installed in the terminal device.

[0073] The network device 102 involved in this application embodiment includes an access network device 1021 and a core network device 1022. Optionally, the access network device 1021 can be a next-generation base station (gNodeB), also known as a 5G base station.

[0074] Radio access network (RAN) equipment is an intermediate device that allows terminal devices to access the core network wirelessly. It is primarily responsible for radio resource management, quality of service (QoS) management, data compression, and encryption on the air interface side. Examples include NodeB base stations, evolved NodeB base stations, gNodeB base stations 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, and policy control function (PCF) network elements. Among these, the UPF network elements are primarily responsible for user data transmission, while the other network elements, which can be referred to as control plane function network elements, are mainly responsible for authentication, authorization, registration management, session management, mobility management, and policy control to ensure reliable and stable transmission of user data.

[0076] In this embodiment of the application, the means for implementing the function of the network device can be the network device itself, or it can be a means that enables the network device to implement the function, such as a chip system, which can be installed in the network device.

[0077] The technical solutions provided in this application can be applied to the Long Term Evolution (LTE) architecture, as well as the UMTS terrestrial radio access network (UTRAN) architecture, or the GSM EDGE radio access network (GERAN) architecture. Furthermore, the technical solutions provided in this application can also be applied to any other wireless communication system with similar structure and function, such as public land mobile network (PLMN) systems, 5G communication systems, or communication systems after 5G, etc., and this application does not impose any limitations on these applications.

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

[0079] Figure 2 This is another communication system architecture diagram provided for an embodiment of this application. (See diagram below.) Figure 2 As shown, 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] Terminal device 201 and the above Figure 1 The terminal device 101 described above, the main network device 202, and the auxiliary network device 203 are similar to those described above. Figure 1 The network device 102 described herein is similar and will not be described again here.

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

[0082] Among them, the main network device 202 can simultaneously support the transmission of downlink signals and the reception of uplink signals, while the auxiliary network device 203 can support the reception of uplink signals.

[0083] For example, the main network device 202 can also be described as a macro base station, and the auxiliary network device 203 can also be described as a micro base station.

[0084] It should be noted that, Figure 2 The number of auxiliary network devices shown is 1. The power control method provided in this 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 Figure 2 In the communication system architecture shown in a, the uplink signal sent by the terminal device can be an uplink signal for the auxiliary network device.

[0086] In other scenarios, such as Figure 2 In the communication system architecture shown in b, due to the mobility of the terminal devices, the uplink signal sent by the terminal devices 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 uplink signals to the primary network device.

[0087] In other scenarios, to enhance the uplink signal rate, such as Figure 2 In the communication system architecture diagram shown in a, the terminal device may send uplink signals to both the main network device and the auxiliary network device at the same time. Therefore, the main network device needs to instruct the terminal device to use two sets of power configuration parameters for uplink signal transmission. One set of power configuration parameters is used by the terminal device to send uplink signals to the main network device, and the other set of power configuration parameters is used by the terminal device to send uplink signals to the auxiliary network device.

[0088] In related technologies, such as Figure 2 In the communication system shown, terminal device 201 can receive downlink signals from master network device 202, such as downlink reference signals. Furthermore, terminal device 201 can determine the transmission power of the downlink reference signal based on the received transmission power information of the downlink reference signal sent by master network device 202, and determine the path loss between terminal device 201 and master network device 202 based on the received reference signal reception power detected by terminal device 201.

[0089] Since the secondary network device 203 does not support downlink signal transmission, meaning the terminal device cannot receive the downlink reference signal transmitted by the secondary network device 203, and further cannot receive the downlink reference signal transmission 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. Furthermore, because the primary network device 202 and the secondary network device 203 are geographically different, the path loss between the primary network device 202 and the terminal device 201 may differ 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 uplink signal transmission power of the terminal device 201 towards the secondary network device.

[0090] Based on the above problems, this application proposes a power control method, the main inventive idea of ​​which is as follows:

[0091] The primary network device sends a power control offset parameter value for the secondary network device to the terminal device, enabling the terminal device to determine the path loss and / or path loss compensation factor of the uplink signal for the secondary network device based on the power control offset parameter value, and further determine the transmission power of the uplink signal for the secondary network device based on the path loss and / or path loss compensation factor.

[0092] The following section will first explain in detail how the transmission power of the uplink signal on the terminal device is determined.

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

[0094]

[0095] in, This represents the uplink signal transmission power value, i.e., the uplink signal transmission power of the terminal device; This represents a closed-loop index. A network device can be configured with multiple closed-loop indexes, such as... as well as ; This indicates the maximum allowed transmit power value for the uplink signal; This indicates the target received power on the network device side, and is usually configured by the network device. Indicates the bandwidth of the uplink signal; This represents the path loss, which is calculated based on the downlink reference signal. The specific calculation formula is: Downlink reference signal transmit power - Downlink reference signal receive power. This represents the path loss compensation factor, used to compensate for path loss. It is usually configured by network devices; This is the closed-loop power adjustment amount.

[0096] Specifically, closed-loop power regulation is divided into:

[0097] Absolute value closed-loop power regulation: The power adjustment amount indicated by the power control command sent by the network device to the terminal device;

[0098] Cumulative closed-loop power regulation: It is necessary to consider the multiple power control commands that the network device previously sent to the terminal device. It is the cumulative sum of the power adjustments indicated by multiple power control commands.

[0099] Among them, the power control command targets the closed-loop index. This is usually indicated in the DCI.

[0100] It is understandable that the path loss of the uplink signal transmission power 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 PL between the terminal device and the main network device. Furthermore, the path loss compensation factor configured on the main network device is... The product of the path loss between the terminal device and the main network device. This is one of the factors used to determine the uplink signal transmission power between the terminal device and the primary network device. However, since the secondary network device does not support downlink signal transmission, the above method for determining the uplink signal transmission power cannot determine the path loss and path loss compensation factor of the uplink signal between the terminal device and the secondary network device. Therefore, this application proposes a power control method for the above-mentioned communication system deployment architecture, which further determines the uplink signal transmission power between the terminal device and the secondary network device by determining the path loss and path loss compensation factor of the uplink signal for the secondary network device.

[0101] It should be noted that, in the power control method provided in this application embodiment, the path loss PL between the terminal device and the main network device is referred to as the first path loss, and the path loss compensation factor configured for the main network device is referred to as the first path loss. This is called the first path loss compensation factor. .

[0102] Optionally, in the power control method provided in this application embodiment, the uplink signal of the terminal device includes the signal corresponding to the uplink channel and / or the uplink reference signal.

[0103] In some embodiments, the uplink signal of the terminal device includes the signal corresponding to the uplink channel;

[0104] In some embodiments, the uplink signal of the terminal device includes an uplink reference signal of the uplink signal;

[0105] In some embodiments, the uplink signal of the terminal device includes the signal corresponding to the uplink channel and the uplink reference signal.

[0106] Optionally, the uplink channel includes the physical uplink shared channel (PUSCH), and / or the physical uplink control channel (PUCCH), and / or the physical random access channel (PRACH).

[0107] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for non-codebook use, an uplink reference signal for codebook use, or an uplink reference signal for beam management.

[0108] Specifically, the uplink reference signal used for non-codebooks is mainly used to determine the codebook for uplink signals based on the uplink-downlink reciprocity of the channel; the uplink reference signal used for codebooks is mainly used to assist network devices in determining the codebook for uplink signals.

[0109] It is understood that, since the power control method provided in this application embodiment does not support the transmission of downlink signals by the auxiliary network device, that is, the terminal device cannot receive the transmission of downlink signals by the auxiliary network device, the uplink and downlink reciprocity of the channel cannot be satisfied. Therefore, the power control method provided in this application embodiment can be used for uplink reference signals that are not codebooks.

[0110] Optionally, the uplink reference signal does not include the uplink reference signal switched by the antenna.

[0111] Specifically, the uplink reference signal used for antenna switching is mainly used to assist network equipment in measuring the downlink channel.

[0112] It is understood that, since the power control method provided in this application embodiment does not support the transmission of downlink signals by the auxiliary network device, that is, the terminal device cannot receive the transmission of downlink signals by the auxiliary network device, and the uplink reference signal for antenna switching is transmitted by the terminal device to the main network device, the power control method provided in this application embodiment cannot be used for the uplink reference signal for antenna switching.

[0113] Based on the above formula for expressing the transmission 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) will be explained in detail below.

[0114] 1) The power control formula for PUSCH can be expressed by the following formula:

[0115]

[0116] Where b represents the bandwidth part (BWP), c represents the cell, f represents the carrier, i represents the subframe, j represents the index of the configuration parameter, and PL represents the path loss.

[0117] Optional,

[0118] The specific parameters involved in the above formulas can be referenced to their meanings as defined in existing communication standards. For example, and For specific details, please refer to the definitions in the 3rd Generation Partnership Project (3GPP) protocol TS 38.213, which will not be elaborated here. Specifically, the details of p0-Nominal, p0, P0-PUSCH-Alpha, deltaPreamble, and msg3-DeltaPreamble can be referred to the definitions in the 3GPP protocol TS 38.331, which will not be elaborated here.

[0119] and, It is the path loss compensation factor described in this application. This is the path loss amount described in this application.

[0120] It can be understood that the above power control formula is used to calculate the uplink signal transmission power of the terminal device in BWP(b), cell c, carrier f, and subframe i for PUSCH information transmission. That is, the terminal device can calculate the uplink signal transmission power of the terminal device in BWP(b), cell c, carrier f, and subframe i based on the PUSCH parameters.

[0121] 2) The power control formula for PUCCH can be expressed by the following formula:

[0122]

[0123] Where b represents BWP, c represents cell, f represents carrier, and i represents subframe. This indicates the index of the configuration parameter, and PL represents the path loss.

[0124] The specific parameters involved in the above formulas can be referenced to their meanings as defined in existing communication standards. For example, regarding... For details, please refer to the 3GPP definition in TS 38.213; it will not be repeated here. For details regarding p0-PUCCH, please refer to the 3GPP definition in TS 38.331; it will not be repeated here.

[0125] Furthermore, it is understandable that, regarding PUCCH, The value of is 1, therefore it is not shown in the formula. This is the path loss amount described in this application.

[0126] It can be understood that the above power control formula is used to calculate the uplink signal transmission power of the terminal device in BWP(b), cell c, carrier f, and subframe i for PUCCH information transmission. That is, the terminal device can calculate the uplink transmission power of the terminal device in BWP b, cell c, carrier f, and subframe i based on the PUSCH parameters.

[0127] 3) The PRACH power control formula can be expressed by the following formula:

[0128]

[0129] Where b represents BWP, c represents cell, f represents carrier, i represents subframe, and PL represents path loss.

[0130] The specific parameters involved in the above formulas can be referenced to their meanings as defined in existing communication standards. For example, regarding... The definitions in TS 38.213 of the 3GPP protocol can be referred to, and will not be repeated here. The specific details of PREAMBLE_RECEIVED_TARGET_POWER can be referred to the definitions in TS 38.321 of the 3GPP protocol, and will not be repeated here. The specific details of preambleReceivedTargetPower and powerRampingStep can be referred to the definitions in TS 38.331 of the 3GPP protocol, and will not be repeated here.

[0131] Furthermore, it is understandable that, regarding PRACH, The value of is 1, therefore it is not shown in the formula. This is the path loss amount described in this application.

[0132] It can be understood that the above power control formula is used to calculate the uplink signal transmission power of the terminal device in BWP(b), cell c, carrier f, and subframe i for PRACH information transmission. That is, the terminal device can calculate the uplink transmission power of the terminal device in BWP b, cell c, carrier f, and subframe i based on the PRACH parameters.

[0133] 4) The power control formula for SRS can be expressed by the following formula:

[0134]

[0135] Where b represents BWP, c represents cell, f represents carrier, and i represents subframe. This indicates the index of the configuration parameter, and PL represents the path loss.

[0136] The specific parameters involved in the above formulas can be referenced to their meanings as defined in existing communication standards. For example, regarding... and The definition can be found in 3GPP's TS 38.213 protocol, which will not be elaborated here.

[0137] and, It is the path loss compensation factor described in this application. This is the path loss amount described in this application.

[0138] It can be understood that the above power control formula is used to calculate the uplink signal transmission power of the terminal device in BWP(b), cell c, carrier f, and subframe i for SRS information transmission. That is, the terminal device can calculate the uplink transmission power of the terminal device in BWP b, cell c, carrier f, and subframe i based on the SRS parameters.

[0139] The technical solutions shown in this application will be described in detail below through specific embodiments. It should be noted that the following embodiments may exist independently or in combination. For the same or similar content, such as explanations of terms or nouns, and explanations of steps, reference can be made to each other in different embodiments, and will not be repeated.

[0140] Figure 3 This is a schematic flowchart illustrating a power control method provided in an embodiment of this application. Figure 3 As shown, the power control method includes the following steps:

[0141] S301, Receive first information from the primary network device, the first information being used to indicate the power control offset parameter value for the uplink signal of the secondary network device.

[0142] Accordingly, the main network device sends the first message.

[0143] For example, sending the first information can also be described as instructing the first information, or as transmitting the first information.

[0144] For example, receiving the first information can also be described as obtaining the first information.

[0145] Optionally, the main network device, in sending the first information, also includes generating the first information. Specifically, the network device generates the first information based on the behavior of the terminal devices it detects.

[0146] For example, generating first information can also be described as determining first information.

[0147] Optionally, the primary network device supports both downlink signal transmission and uplink signal reception, while the secondary network device supports uplink signal reception.

[0148] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, while the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0149] Optionally, the uplink signal of the terminal device may include the signal corresponding to the uplink channel and / or the uplink reference signal.

[0150] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH, and PRACH.

[0151] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for non-codebook use, an uplink reference signal for codebook use, or an uplink reference signal for beam management.

[0152] Optionally, the power control offset parameter value includes an offset value for the path loss of the uplink signal, and / or an offset value for the path loss compensation factor of the uplink signal.

[0153] In some embodiments, the power control offset parameter value includes an offset value of the path loss 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 of the uplink signal and an offset value of the path loss compensation factor of the uplink signal.

[0154] Optionally, the first information is carried in radio resource control (RRC) signaling.

[0155] S302 determines the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0156] For example, the transmission power of the uplink signal for the secondary network device can also be described as the transmission power of the uplink transmission for the secondary network device.

[0157] Optionally, if the channel-associated power control offset parameter value of the above uplink signal is true, then the transmission power of the channel for the uplink signal of the secondary network device is determined according to the power control offset parameter value.

[0158] And / or, if the uplink reference signal is associated with a power control offset parameter value, then the transmission power of the uplink reference signal for the secondary network device is determined based on the power control offset parameter value.

[0159] When the power control offset parameter value includes an offset value for the path loss of the uplink signal for the secondary network device, optionally, a second path loss related to the transmission power of the uplink signal for the secondary network device is determined based on the offset value of the path loss and the first path loss PL.

[0160] In some embodiments, the second path loss can be expressed by the following formula:

[0161] Second path loss = First path loss PL + Offset of path loss

[0162] Where PL represents the first path loss. The offset value represents the path loss.

[0163] Wherein, the first path loss PL = downlink reference signal transmit power - downlink reference signal receive power

[0164] Downlink reference signal transmission power is the transmission power of the downlink reference signal of the main network device, while reference signal reception power is the reception power of the reference signal after filtering by the higher layers of the terminal device.

[0165] The units for the first path loss PL and the second path loss mentioned above are dB.

[0166] It is understandable that, in order to enhance uplink coverage, the distance between the secondary network device and the terminal device is usually shorter than the distance between the primary network device and the terminal device. Therefore, the actual path loss between the secondary network device and the terminal device will be smaller than the path loss between the primary network device and the terminal device, that is, the offset of the path loss is less than or equal to 0.

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

[0168] It should be noted that, based on the above formula, when the offset value of the path loss is less than or equal to 0, the offset value of the path loss is preceded by a "+".

[0169] In some embodiments, the second path loss can also be expressed by the following formula:

[0170] Second path loss = First path loss PL - Offset of path loss

[0171] Optionally, the offset value of the path loss is greater than or equal to 0.

[0172] It should be noted that, based on the above formula, when the offset value of the path loss is greater than or equal to 0, the offset value of the path loss is preceded by "-".

[0173] When the power control offset parameter value includes the offset value of the path loss compensation factor for the uplink signal of the secondary network device, optionally, based on the offset value of the path loss compensation factor and the first path loss compensation factor... Determine the second path loss compensation factor related to the transmission power of the uplink signal for auxiliary network devices.

[0174] In some embodiments, the second path loss compensation factor can be expressed by the following formula:

[0175] Second path loss compensation factor = First path loss compensation factor + Offset value of path loss compensation factor

[0176] in, This represents the first path loss compensation factor. This represents the offset value of the path loss compensation factor.

[0177] Among them, the first path loss compensation factor The path loss compensation factor that can be configured from the primary network device to the terminal device, the first path loss compensation factor. Less than or equal to 0.

[0178] It is understandable that, in order to enhance uplink coverage, the distance between the secondary network device and the terminal device is usually closer than the distance between the primary network device and the terminal device. Therefore, the actual path loss between the secondary network device and the terminal device will be smaller than the path loss between the primary network device and the terminal device. Thus, 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.

[0179] Optionally, the offset value of the path loss compensation factor is less than or equal to 0.

[0180] 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 a "+".

[0181] In some embodiments, the second path loss compensation factor can be expressed by the following formula:

[0182] Second path loss compensation factor = First path loss compensation factor + Offset value of path loss compensation factor

[0183] Optionally, the offset value of the path loss compensation factor is greater than or equal to 0.

[0184] 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 "-".

[0185] Optionally, the transmission power of the uplink signal for the auxiliary network device is determined based on the second path loss and the second path loss compensation factor.

[0186] In some embodiments, the product of the second path loss and the second path loss compensation factor is used as one of the factors in determining the transmit power of the uplink signal for the secondary network device.

[0187] When the power control offset parameter value includes the offset value of the uplink signal path loss and the offset value of the path loss compensation factor, in some embodiments, the transmission power of the uplink signal for the secondary network device is determined by the second path loss and the second path loss compensation factor, which can be expressed by the following formula:

[0188]

[0189] in, This represents the second path loss compensation factor. This indicates the loss amount along the second path.

[0190] 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.

[0191] In some embodiments, the transmission power of the uplink signal for the secondary network device is determined by one of the following formula: (Second path loss and second path loss compensation factor)

[0192]

[0193] 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.

[0194] In some embodiments, the transmission power of the uplink signal for the secondary network device is determined by one of the following formula: (Second path loss and second path loss compensation factor)

[0195]

[0196] 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.

[0197] In some embodiments, the transmission power of the uplink signal for the secondary network device is determined by one of the following formula: (Second path loss and second path loss compensation factor)

[0198]

[0199] 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.

[0200] When the power control offset parameter value includes the offset value of the uplink signal path loss, in some embodiments, the transmission power of the uplink signal for the secondary network device is determined by the second path loss and the first path loss compensation factor, which can be expressed by the following formula:

[0201]

[0202] in, This represents the first path loss compensation factor. This indicates the loss amount along the second path.

[0203] Optionally, the offset value of the path loss is less than or equal to 0.

[0204] In some embodiments, the transmission power of the uplink signal for the secondary network device is determined by one of the second path loss and the first path loss compensation factor, which can be expressed by the following formula:

[0205]

[0206] Optionally, the offset value of the path loss is greater than or equal to 0.

[0207] When the power control offset parameter value includes the offset value of the uplink signal path loss compensation factor, in some embodiments, the transmission power of the uplink signal for the secondary network device is determined by the first path loss and the second path loss compensation factor, which can be expressed by the following formula:

[0208]

[0209] Optionally, the offset value of the path loss compensation factor is less than or equal to 0.

[0210] In some embodiments, the transmission power of the uplink signal for the secondary network device is determined by using a first path loss and a second path loss compensation factor, which can be expressed by the following formula:

[0211]

[0212] Optionally, the offset value of the path loss compensation factor is greater than or equal to 0.

[0213] It is understood that in the power control method provided in this application embodiment, 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, the offset value of the path loss compensation factor, or the offset value of both the path loss and the path loss compensation factor.

[0214] In this embodiment, by receiving a power control offset parameter value sent by the primary network device to indicate the uplink signal for the secondary network device, the path loss and path loss compensation factor for uplink signal transmission between the terminal device and the secondary network device are determined based on the power control offset parameter value. Furthermore, based on the path loss and 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 downlink signal transmission.

[0215] It should be noted that, as mentioned above Figure 2 In the communication system architecture shown in b, due to the mobility of the terminal devices, the uplink signal sent by the terminal devices 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 uplink signals to the primary network device.

[0216] It is understood that the power transmission power of the terminal device for uplink signals to the primary network device does not require the application of a power control offset parameter value. Therefore, the power control method provided in this application embodiment can further configure the primary network device to determine whether the terminal device is active or applying a power control offset parameter value, so as to determine the power transmission power of the uplink signal to the secondary network device based on the power control offset parameter value.

[0217] The following is combined with Figures 4 to 7 This application provides a detailed description of the power control method provided in the embodiments of this application, which involves further configuring information on whether the terminal device is effective or applying power control offset parameter values ​​through the main network device, and determining the transmission power of the uplink signal for the auxiliary network device based on the power control offset parameter values ​​when the main network device further configures information on whether the terminal device is effective or applying power control offset parameter values.

[0218] Figure 4 This is a schematic flowchart illustrating a power control method provided in yet another embodiment of this application. Figure 4 As shown, the power control method includes the following steps:

[0219] S401, Receive first information from the primary network device, the first information being used to indicate one or more power control offset parameter values ​​for the uplink signal of the secondary network device.

[0220] Accordingly, the main network device sends the first message.

[0221] For example, sending the first information can also be described as instructing the first information, or as transmitting the first information.

[0222] For example, receiving the first information can also be described as obtaining the first information.

[0223] Optionally, the main network device, in sending the first information, also includes generating the first information. Specifically, the network device generates the first information based on the behavior of the terminal devices it detects.

[0224] For example, generating first information can also be described as determining first information.

[0225] Optionally, the first information is carried in RRC signaling.

[0226] Optionally, the signaling carrying the first information is used to configure one or more power control offset parameter values.

[0227] Optionally, the primary network device supports both downlink signal transmission and uplink signal reception, while the secondary network device supports uplink signal reception.

[0228] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, while the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0229] Optionally, the uplink signal of the terminal device may include the signal corresponding to the uplink channel and / or the uplink reference signal.

[0230] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH, and PRACH.

[0231] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for non-codebook use, an uplink reference signal for codebook use, or an uplink reference signal for beam management.

[0232] Optionally, one or more power control offset parameter values ​​include offset values ​​for one or more path loss amounts of the uplink signal, and / or offset values ​​for one or more path loss compensation factors of the uplink signal.

[0233] S402, Receive second information from the main network device, the second information being used to indicate the applied power offset parameter value.

[0234] Accordingly, the main network device sends the second message.

[0235] For example, sending a second message can also be described as instructing a second message, or as transmitting a second message.

[0236] For example, receiving the second information can also be described as obtaining the second information.

[0237] Optionally, the second information is carried in downlink control information (DCI) signaling.

[0238] For example, the second information indicates the application of the power offset parameter value, or it can be described as the second information used to indicate that the power offset parameter value is in effect.

[0239] Optionally, the second information is received from the primary network device before determining the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0240] Specifically, the second information is used to indicate whether the power offset parameter value is effective or applied. In one possible implementation, a numerical agreement between the main network device and the terminal device can be adopted. For example, the value 1 indicates that the second information indicates that the power offset parameter value is effective or applied, and the value 0 indicates that the second information indicates that the power offset parameter value is not effective or applied. Correspondingly, the value 0 can also indicate that the second information indicates that the power offset parameter value is effective or applied, and the value 1 indicates that the second information indicates that the power offset parameter value is not effective or applied, etc.

[0241] Optionally, when the first information indicates multiple power control offset parameter values, the second information is also used to indicate any one of the multiple power control offset parameter values.

[0242] In some embodiments, when the first information indicates a power control offset parameter value, the second information further indicates the application of that power control offset parameter value.

[0243] 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 a plurality of power control offset parameter values, that is, the second information is used to indicate the application of any one of a plurality of power control offset parameter values.

[0244] In one possible implementation, multiple power control offset parameter values ​​are numbered, and one of the multiple power control offset parameter values ​​is determined according to the sequence number indicated by the second information.

[0245] Optionally, the first information and the second information can be carried in the same signaling message or in different signaling messages. This application embodiment does not limit this; the specific implementation depends on the actual application requirements.

[0246] For example, the signaling can be RRC signaling or DCI signaling.

[0247] In some embodiments, the first information and the second information can be carried in the same RRC signaling or DCI signaling.

[0248] In some embodiments, the first information is carried in RRC signaling, and the second information is carried in DCI signaling.

[0249] In some embodiments, the first information is carried in DCI signaling, and the second information is carried in RRC signaling.

[0250] It should be noted that when the second information indicates the application power control offset parameter value, one possible situation is that the uplink signal of the terminal device is for transmission to the auxiliary network device. In this case, the path loss is determined according to the second path loss, or the path loss compensation factor is determined according to the second path loss compensation factor.

[0251] The second path loss is determined based on the first path loss and the offset value of the path loss; the second path loss compensation factor is determined based on the first path loss compensation factor and the offset value of the path loss compensation factor.

[0252] S403, in response to the second information, determines the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0253] Specifically, when the second information indication takes effect or the power control offset parameter value is applied, the transmission power of the uplink signal for the secondary network device is further determined based on one of the multiple power control offset parameter values ​​indicated by the second information indication.

[0254] Specifically, the transmission power of the uplink signal for the auxiliary network device is determined based on the power control offset parameter value, which is similar to step S302 above and will not be repeated here.

[0255] Optionally, when the second information indication is not effective or the power control offset parameter value is not applied, one possible situation is that the uplink signal of the terminal device is a transmission to the main network device, and the path loss is determined according to the first path loss, or the path loss compensation factor is determined according to the first path loss compensation factor.

[0256] The first path loss is determined based on the downlink reference signal transmit power and the downlink reference signal receive power.

[0257] In this embodiment of the application, when receiving first information indicating multiple power control offset parameter values ​​and receiving second information indicating application power control offset parameter values, the transmission power of the uplink signal for the secondary network device is further determined based on one of 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 secondary network device.

[0258] Figure 5 This is a schematic flowchart illustrating a power control method provided in another embodiment of this application. Figure 5 As shown, the power control method includes the following steps:

[0259] S501, Receive first information from the primary network device, the first information being used to indicate one or more power control offset parameter values ​​for the uplink signal of the secondary network device.

[0260] Accordingly, the main network device sends the first message.

[0261] For example, sending the first information can also be described as instructing the first information, or as transmitting the first information.

[0262] For example, receiving the first information can also be described as obtaining the first information.

[0263] Optionally, the main network device, in sending the first information, also includes generating the first information. Specifically, the network device generates the first information based on the behavior of the terminal devices it detects.

[0264] For example, generating first information can also be described as determining first information.

[0265] Optionally, the first information is carried in RRC signaling.

[0266] Optionally, the signaling carrying the first information is used to configure one or more power control offset parameter values.

[0267] Optionally, the primary network device supports both downlink signal transmission and uplink signal reception, while the secondary network device supports uplink signal reception.

[0268] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, while the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0269] Optionally, the uplink signal of the terminal device may include the signal corresponding to the uplink channel and / or the uplink reference signal.

[0270] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH, and PRACH.

[0271] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for non-codebook use, an uplink reference signal for codebook use, or an uplink reference signal for beam management.

[0272] Optionally, one or more power control offset parameter values ​​include offset values ​​for one or more path loss amounts of the uplink signal, and / or offset values ​​for one or more path loss compensation factors of the uplink signal.

[0273] S502, receive second information from the main network device, the second information being used to indicate one of a plurality of power control offset parameter values.

[0274] Accordingly, the main network device sends the second message.

[0275] For example, sending a second message can also be described as instructing a second message, or as transmitting a second message.

[0276] Optionally, the second information is carried in the signaling of the media access control element (MAC CE).

[0277] For example, receiving the second information can also be described as obtaining the second information.

[0278] Optionally, the second information is received from the primary network device before determining the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0279] In one possible implementation, multiple power control offset parameter values ​​are numbered, and one of the multiple power control offset parameter values ​​is determined according to the sequence number indicated by the second information.

[0280] In some embodiments, when the power control offset parameter value indicated by the first information is one, the second information can also be used to indicate the application of that power control offset parameter value.

[0281] Optionally, the first information and the second information can be carried in the same signaling message or in different signaling messages. This application embodiment does not limit this; the specific implementation depends on the actual application requirements.

[0282] For example, the signaling can be RRC signaling or MAC CE signaling.

[0283] In some embodiments, the first information and the second information can be carried in the same RRC signaling or MAC CE signaling.

[0284] In some embodiments, the first information is carried in RRC signaling, and the second information is carried in MAC CE signaling.

[0285] In some embodiments, the first information is carried in MAC CE signaling, and the second information is carried in RRC signaling.

[0286] S503, in response to the second information, determines the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0287] Specifically, the transmission power of the uplink signal for the secondary network device is determined based on one of the multiple power control offset parameter values ​​indicated by the second information.

[0288] Specifically, the transmission power of the uplink signal for the auxiliary network device is determined based on the power control offset parameter value, which is similar to step S302 above and will not be repeated here.

[0289] In this embodiment of the application, after receiving the first information indicating multiple power control offset parameter values, the transmission power of the uplink signal for the secondary network device is further determined according to one of 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 secondary network device.

[0290] Figure 6 This is a schematic flowchart illustrating a power control method provided in another embodiment of this application. Figure 6 As shown, the power control method includes the following steps:

[0291] S601, Receive first information from the primary network device, the first information being used to indicate one or more power control offset parameter values ​​for the uplink signal of the secondary network device.

[0292] Accordingly, the main network device sends the first message.

[0293] For example, sending the first information can also be described as instructing the first information, or as transmitting the first information.

[0294] For example, receiving the first information can also be described as obtaining the first information.

[0295] Optionally, the main network device, in sending the first information, also includes generating the first information. Specifically, the network device generates the first information based on the behavior of the terminal devices it detects.

[0296] For example, generating first information can also be described as determining first information.

[0297] Optionally, the first information is carried in RRC signaling.

[0298] Optionally, the signaling carrying the first information is used to configure one or more power control offset parameter values.

[0299] Optionally, the primary network device supports both downlink signal transmission and uplink signal reception, while the secondary network device supports uplink signal reception.

[0300] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, while the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0301] Optionally, the uplink signal of the terminal device may include the signal corresponding to the uplink channel and / or the uplink reference signal.

[0302] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH, and PRACH.

[0303] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for non-codebook use, an uplink reference signal for codebook use, or an uplink reference signal for beam management.

[0304] Optionally, one or more power control offset parameter values ​​include offset values ​​for one or more path loss amounts of the uplink signal, and / or offset values ​​for one or more path loss compensation factors of the uplink signal.

[0305] S602, receive third information from the main 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 main network device for the terminal device.

[0306] Accordingly, the main network device sends third information.

[0307] For example, sending third information can also be described as instructing third information, or as transmitting third information.

[0308] For example, receiving third information can also be described as acquiring third information.

[0309] Optionally, the third information is carried in MAC CE signaling.

[0310] Optionally, the third information is used to activate the power control offset parameter value for the uplink signal of the secondary network device configured by the primary network device for the terminal device.

[0311] Among them, the auxiliary network equipment supports receiving uplink signals but does not support sending downlink signals.

[0312] It is understood that one or more of the configured power control offset parameter values ​​are the same as the one or more power control offset parameter values ​​indicated by the first information in step S601.

[0313] Optionally, activating one or more power control offset parameter values ​​includes activating offset values ​​for one or more path loss amounts of the uplink signal, and / or activating offset values ​​for one or more path loss compensation factors of the uplink signal.

[0314] In some embodiments, activating one or more power control offset parameter values ​​includes activating one or more path loss amounts of the uplink signal; in some embodiments, activating one or more power control offset parameter values ​​includes activating one or more 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 path loss amounts of the uplink signal and activating one or more path loss compensation factors of the uplink signal.

[0315] It is understandable that one or more power control offset parameter values ​​can also be activated via MAC CE signaling to activate the corresponding activated one or more power control offset parameter values.

[0316] Optionally, a fourth message is received from the master network device, which is used to instruct the 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.

[0317] Accordingly, the main network device sends the fourth message.

[0318] Optionally, the fourth information is carried in the MAC CE signaling.

[0319] 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 channel of the uplink signal or the transmission power of the reference signal.

[0320] S603, receive second information from the main network device, the second information being used to indicate the applied power offset parameter value.

[0321] Accordingly, the main network device sends the second message.

[0322] For example, sending a second message can also be described as instructing a second message, or as transmitting a second message.

[0323] For example, receiving the second information can also be described as obtaining the second information.

[0324] Optionally, the second information is carried in downlink control information (DCI) signaling.

[0325] For example, the second information indicates the application of the power offset parameter value, or it can be described as the second information used to indicate that the power offset parameter value is in effect.

[0326] Optionally, the second information is received from the primary network device before determining the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0327] Optionally, when the third information indicates one or more power control offset parameter values ​​of the activated configuration, the second information is used to indicate the application of one of the one or more activated power control offset parameter values.

[0328] Optionally, when the third information indicates one or more power control offset parameter values ​​of the activated configuration, the second information is also used to indicate any one of the one or more power control offset parameter values ​​that has been activated.

[0329] Specifically, this power control offset parameter value is applied when determining the transmission power of uplink signals for secondary network devices.

[0330] It should be noted that when the second information indicates the application power control offset parameter value, one possible situation is that the uplink signal of the terminal device is for transmission to the auxiliary network device. In this case, the path loss is determined according to the second path loss, or the path loss compensation factor is determined according to the second path loss compensation factor.

[0331] The second path loss is determined based on the first path loss and the offset value of the path loss; the second path loss compensation factor is determined based on the first path loss compensation factor and the offset value of the path loss compensation factor.

[0332] S604, in response to the second information, determines the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0333] Specifically, when the second information indication takes effect or the third information is applied to activate one or more of the multiple power control offset parameter values ​​configured, the transmission power of the uplink signal for the secondary network device is further determined based on one of the power control offset parameter values ​​indicated by the second information.

[0334] Specifically, the transmission power of the uplink signal for the auxiliary network device is determined based on the power control offset parameter value, which is similar to step S302 above and will not be repeated here.

[0335] Optionally, when the second information indication is not effective or the power control offset parameter value is not applied, one possible situation is that the uplink signal of the terminal device is a transmission to the main network device, and the path loss is determined according to the first path loss, or the path loss compensation factor is determined according to the first path loss compensation factor.

[0336] The first path loss is determined based on the downlink reference signal transmit power and the downlink reference signal receive power.

[0337] In this embodiment of the application, by sequentially receiving first information indicating multiple power control offset parameter values, third information indicating one or more power control offset parameter values ​​for activation configuration, second information indicating the application of one or more power control offset parameter values, and further indicating one of the 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 secondary network device, thereby realizing the determination of the transmission power of the uplink signal for the secondary network device.

[0338] Figure 7 This is a schematic flowchart illustrating a power control method provided in another embodiment of this application. Figure 7 As shown, the power control method includes the following steps:

[0339] S701, receive fifth information from the network device, which indicates the time range of the applied power control offset parameter value.

[0340] Accordingly, the main network device sends the fifth message.

[0341] For example, sending the fifth information can also be described as instructing the fifth information, or as transmitting the fifth information.

[0342] For example, receiving the fifth information can also be described as obtaining the fifth information.

[0343] Optionally, the fifth information is carried in RRC signaling.

[0344] For example, the time range for indicating the application of the power control offset parameter value can also be described as the time range during which the power control offset parameter value is effective.

[0345] It is understandable that this power control offset parameter value is only effective or applicable within this time frame.

[0346] It should be noted that within the time range of the applied power control offset parameter value, the uplink signal of the terminal device can be the uplink signal for the secondary network device.

[0347] In some embodiments, the fifth information may also be used to indicate a time range during which the power control offset parameter value is not effective or not applied, i.e., the power control offset parameter value is not applied or is ineffective within that time range.

[0348] It should be noted that within the time range when the power control offset parameter value is not applied, the uplink signal of the terminal device can be the uplink signal for the main network device.

[0349] S702, in response to the fifth message, determines the transmission power of the uplink signal for the secondary network device within a time range based on the power control offset parameter value.

[0350] Based on the power control offset parameter value, the transmission power of the uplink signal for the auxiliary network device is determined, which is similar to step S302 above, and will not be repeated here.

[0351] Optionally, the main network device is configured with a timer that has a threshold upper limit.

[0352] Optionally, the timer starts counting when the power control offset parameter value and / or time range configured by the main network device is received.

[0353] In some embodiments, the terminal device applies the power control offset parameter value when the timer has not reached a threshold upper limit; after the timer reaches a threshold upper limit, the terminal device no longer applies the power offset parameter value.

[0354] It should be noted that in this embodiment of the 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 has not reached a threshold upper limit, the terminal device transmits an uplink signal to the auxiliary network device; after the timer reaches a threshold upper limit, the terminal device transmits an uplink signal to the main network device.

[0355] Accordingly, in some embodiments, when the fifth information indicates a time range during which the power control offset parameter value should not be applied, the terminal device does not apply the aforementioned power control offset parameter value if the timer has not reached a threshold upper limit; and applies the aforementioned power offset parameter value after the timer reaches a threshold upper limit. That is, within the aforementioned time range configurable by the primary network device, the terminal device transmits an uplink signal to the primary network device if the timer has not reached a threshold upper limit; and transmits an uplink signal to the secondary network device after the timer reaches a threshold upper limit.

[0356] In this embodiment of the application, by obtaining fifth information for indicating the time range of the application power control offset parameter value, and further, within the indicated time range, determining the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value, the determination of the transmission power of the uplink signal for the secondary network device is achieved.

[0357] It should be noted that, in the power control method provided in this application embodiment, in order to enhance the uplink signal rate, as described above... Figure 2 In the communication system architecture diagram shown in a, the terminal device may transmit uplink signals to both the main network device and the auxiliary network device at the same time. Therefore, the main network device needs to simultaneously instruct the terminal device on two sets of power configuration parameters for uplink signal transmission.

[0358] Specifically, network devices can simultaneously indicate two sets of power configuration parameters for uplink signal channel or uplink reference signal transmission, one of which configures a power control offset parameter value. Furthermore, the primary network device, by indicating a transmission status indication associated with the power control offset parameter value to the terminal device, further applies the power control offset parameter value from the transmission status indication to determine the transmission power of the uplink signal for the secondary network device.

[0359] The following is combined Figure 8The power control method applicable to the above-mentioned scenarios provided in the embodiments of this application will be described in detail.

[0360] Figure 8 This is a schematic flowchart illustrating a power control method provided in another embodiment of this application. Figure 8 As shown, the power control method includes the following steps:

[0361] S801, receive the sixth information from the main network device, which is used to indicate the transmission status indicator.

[0362] Accordingly, the main network device sends the sixth message.

[0363] For example, sending the sixth message can also be described as instructing the sixth message, or as transmitting the sixth message.

[0364] For example, receiving the sixth information can also be described as obtaining the sixth information.

[0365] For example, a transmission status indicator can be represented as a transmission configuration indicator (TCI).

[0366] It is understood that a transmission status indicator is an indication of the transmission status information of uplink or downlink signals. In the embodiments of this application, the transmission status indicator is an indication of 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.

[0367] Optionally, the transmission status indicator is used to associate power control offset parameter values.

[0368] For example, a transmission status indicator would be associated with at least one set of power configuration parameters mentioned above.

[0369] Optionally, the main network device can simultaneously support the transmission of downlink signals and the reception of uplink signals.

[0370] Specifically, the main network device supports receiving uplink signals from terminal devices and sending downlink signals to terminal devices.

[0371] Optionally, the sixth information is carried in the relevant signaling for configuring the scheduling-free PUSCH, and / or the sixth information is carried in the DCI signaling for scheduling uplink transmissions.

[0372] Optionally, the transmission status indicator includes a first transmission status indicator and / or a second transmission status indicator.

[0373] 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 can be an uplink signal for the primary network device or an uplink signal for the secondary network device.

[0374] 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.

[0375] For example, the first transmission status indicator can be an uplink signal corresponding to the primary network device, and the second transmission status indicator can be an uplink signal corresponding to the secondary network device; correspondingly, the first transmission status indicator can be an uplink signal corresponding to the secondary network device, and the second transmission status indicator can be an uplink signal corresponding to the primary network device.

[0376] Optionally, 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.

[0377] In some embodiments, a first transmission status indicator is associated with a power control offset parameter value; in some embodiments, a second transmission status indicator is associated with a power control offset parameter value; in some embodiments, both the first and second transmission status indicators are associated with a power control offset parameter value.

[0378] S802 determines the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0379] Optionally, when the first transmission status indicator is associated with the 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 according to the power control offset parameter value.

[0380] Accordingly, when the power control offset parameter value is associated with the second transmission status indicator, the second transmission status indicator is used to determine the uplink signal for the secondary network device. Furthermore, 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.

[0381] It should be noted that the signals transmitted by the terminal device to the main network device and the auxiliary network device can be scheduled by different DCIs. Each DCI from a different network device is associated with an index information.

[0382] Optionally, the transmission status indicator is associated with a first preset index value.

[0383] 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.

[0384] Optionally, the power control offset parameter value is associated with a second preset index value.

[0385] When the terminal device determines the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value associated with the transmission status indicator, the specific implementation method is as follows:

[0386] In one implementation, a 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, while 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 aforementioned power control offset parameter value when determining the transmission power of the uplink channel such as PUSCH or PUCCH, or the uplink reference signal, scheduled by the DCI.

[0387] Accordingly, the second transmission status indicator is associated with the power control offset parameter value, and the second transmission status indicator is associated with the first preset index value, while the power control offset parameter value is associated with the second preset index value. When the first preset index value and the second preset index value are the same, the terminal device applies the aforementioned power control offset parameter value when determining the transmission power of the uplink channel such as PUSCH or PUCCH, or the uplink reference signal, scheduled by the DCI.

[0388] 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 aforementioned power control offset parameter when determining the transmission power of the uplink channel such as PUSCH or PUCCH, or the uplink reference signal, scheduled by the DCI.

[0389] Accordingly, 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 such as PUSCH or PUCCH or the uplink reference signal scheduled by the DCI.

[0390] For example, the first preset index value, the second preset index value, and the preset index value can be 1 or 0, etc.

[0391] When the terminal device determines the transmission power of the uplink channel such as PUSCH or PUCCH, or the uplink reference signal scheduled by the DCI, it applies the power control offset parameter. The specific implementation method is similar to step S302 above, and will not be repeated here.

[0392] In this embodiment of the application, by obtaining the sixth information used to indicate the transmission status indicator, and further determining the transmission power of the uplink signal based on the power control offset parameter associated with the transmission status indicator, the transmission power of the uplink signal for the secondary network device is determined.

[0393] It should be noted that the power control method provided in this application embodiment is also applicable to scenarios where no RRC connection is established between the terminal device and the network device. The following is a detailed description in conjunction with specific embodiments.

[0394] Figure 9 This is a schematic flowchart illustrating a power control method provided in another embodiment of this application. Figure 9 As shown, the power control method includes the following steps:

[0395] S901, Receive first information from the primary network device, the first information being used to indicate the power control offset parameter value for the uplink signal of the secondary network device.

[0396] Accordingly, the main network device sends the first message.

[0397] For example, sending the first information can also be described as instructing the first information, or as transmitting the first information.

[0398] For example, receiving the first information can also be described as obtaining the first information.

[0399] Optionally, the main network device, in sending the first information, also includes generating the first information. Specifically, the network device generates the first information based on the behavior of the terminal devices it detects.

[0400] For example, generating first information can also be described as determining first information.

[0401] Optionally, the first information is carried in a System Information Block (SIB).

[0402] It is understandable that when a terminal device is not in the connected state, the power control offset parameter value cannot be sent to the terminal device via dedicated signaling such as RRC signaling. Therefore, the network device can send the power control offset parameter value to the terminal device via broadcast.

[0403] 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: the physical random access channel (PRACH) or the PUSCH transmitted during random access, such as Msg3 or MsgA.

[0404] Optionally, the primary network device supports both downlink signal transmission and uplink signal reception, while the secondary network device supports uplink signal reception.

[0405] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, while the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0406] Optionally, the uplink signal of the terminal device may include the signal corresponding to the uplink channel and / or the uplink reference signal.

[0407] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH, and PRACH.

[0408] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for non-codebook use, an uplink reference signal for codebook use, or an uplink reference signal for beam management.

[0409] Optionally, the power control offset parameter value includes an offset value for the path loss of the uplink signal, and / or an offset value for the path loss compensation factor of the uplink signal.

[0410] S902 determines the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value.

[0411] The specific implementation method is similar to step S302 above, and will not be repeated here.

[0412] In this embodiment, the SIB carries the power control offset parameter value for the uplink signal, and further determines the transmission power of the uplink signal for the secondary network device based on the power control offset parameter value, thereby enabling the determination of the transmission power of the uplink signal for the secondary network device when the terminal device and the network device have not established an RRC connection.

[0413] It should be noted that in uplink signal transmit power control, the uplink signal is typically associated with a closed-loop index used to determine the application scope of the power control command. One approach is that the power control command is associated with a closed-loop index to determine the adjustment of the uplink signal transmit power; in this case, the closed-loop index associated with the uplink signal is the same as the closed-loop index associated with the power control command.

[0414] The power control method provided in this application is applicable to the scenario described above where a closed-loop index is associated with a power control command to determine the adjustment of the uplink signal transmission power. The power control method provided in this application will be described in detail below with reference to specific embodiments.

[0415] Figure 10 This is a schematic flowchart illustrating a power control method provided in another embodiment of this application. Figure 10 As shown, the power control method includes the following steps:

[0416] S110, receive first information from the primary network device, the first information being used to indicate the power control offset parameter value for the uplink signal of the secondary network device.

[0417] Accordingly, the main network device sends the first message.

[0418] For example, sending the first information can also be described as instructing the first information, or as transmitting the first information.

[0419] Optionally, the main network device, in sending the first information, also includes generating the first information. Specifically, the network device generates the first information based on the behavior of the terminal devices it detects.

[0420] For example, generating first information can also be described as determining first information.

[0421] For example, receiving the first information can also be described as obtaining the first information.

[0422] Optionally, the power control offset parameter value is associated with a preset closed-loop index.

[0423] For example, the preset closed-loop index can be 1 or 0, etc.

[0424] Understandably, this preset closed-loop index is specifically used for controlling the transmission power of uplink signals transmitted to secondary network devices.

[0425] Optionally, the primary network device supports both downlink signal transmission and uplink signal reception, while the secondary network device supports uplink signal reception.

[0426] Specifically, the primary network device supports receiving uplink signals from the terminal device and sending downlink signals to the terminal device, while the secondary network device supports receiving uplink signals from the terminal device but does not support sending downlink signals to the terminal device.

[0427] Optionally, the uplink signal of the terminal device may include the signal corresponding to the uplink channel and / or the uplink reference signal.

[0428] Optionally, the uplink channel includes at least one of the following: PUSCH, PUCCH, and PRACH.

[0429] Optionally, the uplink reference signal includes at least one of the following: an uplink reference signal for non-codebook use, an uplink reference signal for codebook use, or an uplink reference signal for beam management.

[0430] Optionally, the power control offset parameter value includes an offset value for the path loss of the uplink signal, and / or an offset value for the path loss compensation factor of the uplink signal.

[0431] S111, Receive power control commands from the main network device.

[0432] Accordingly, the main network device sends a power control command.

[0433] For example, sending a power control command can also be described as sending a power control command, or as indicating a power control command.

[0434] For example, receiving a power control command can also be described as obtaining a power control command.

[0435] Optionally, a power control command is used to determine and adjust the transmission power of the uplink signal.

[0436] Optionally, the terminal device may acquire multiple power control commands.

[0437] S112, if the power control command is associated with a preset closed-loop index, determine the transmission power of the uplink signal for the auxiliary network device based on the power control offset parameter value.

[0438] It is understandable 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 secondary network device is determined based on the power control offset parameter value.

[0439] Specifically, the transmission power of the uplink signal for the auxiliary network device is determined based on the power control offset parameter value. The specific implementation method is similar to step S302 above, and will not be repeated here.

[0440] Optionally, this power control offset parameter value is associated with cumulative power control.

[0441] It should be noted that when the terminal device obtains the reconfigured power control offset parameter value from the main network device, the cumulative power control associated with this power control offset parameter needs to be reset. That is, the cumulative power control portion needs to be accumulated again from zero.

[0442] It should be noted that the reconfiguration of the power control offset parameter may be due to the terminal device sending a move, which makes the original cumulative power control part no longer valid, and further clears the cumulative power control part associated with the power control offset parameter to 0.

[0443] In one possible implementation, the primary network device sends a reconfigured power control offset parameter value, and the terminal device accordingly obtains the reconfigured power control offset parameter value; further, the terminal device determines the transmission power of the uplink signal for the secondary network device based on the reconfigured power control offset parameter value, and resets the cumulative power adjustment associated with the power control offset parameter value.

[0444] In this embodiment of the application, by obtaining first information and a power control command for indicating the power control offset parameter value for the secondary network device, and 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 secondary network device is determined according to the power control offset parameter value, so as to realize the determination of the transmission power of the uplink signal for the secondary network device.

[0445] The communication method of the embodiments of this application has been described above. The apparatus for executing the above method provided in the embodiments of this application is described below. Those skilled in the art will understand that the methods and apparatus can be combined and referenced with each other, and the related apparatus provided in the embodiments of this application can execute the steps in the above list sorting method.

[0446] Figure 11 This is a schematic diagram of a terminal device provided in an embodiment of this application. Figure 11 As shown, the terminal device 11 includes a transceiver unit 141 and a processing unit 142.

[0447] 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 effect are similar, and will not be repeated here.

[0448] Figure 12 This is a schematic diagram of the network device provided in an embodiment of this application. Figure 12 As shown, the network device 12 includes a transceiver unit 121.

[0449] The network device provided in this embodiment can be a core network device or an access network device, used to implement the technical solutions in the aforementioned method embodiments. Its implementation principle and technical effect are similar, and will not be repeated here.

[0450] It should be noted that the module names involved in the embodiments of this application can all be defined as other names, as long as they can achieve the function of each module, and no specific restrictions are placed on the module names.

[0451] Figure 13 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 13 As shown, 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 stores instructions, the communication interface 133 communicates with other devices, and the processor 131 calls the instructions in the memory to execute the method steps provided in the above method embodiments. The specific implementation and technical effects are similar and will not be described again here.

[0452] Should Figure 13 The system bus 134 mentioned can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. This system bus 134 can be divided into address bus, data bus, control bus, etc. For ease of representation, it is represented by only one thick line in the diagram, but this does not indicate that there is only one bus or one type of bus.

[0453] Communication interface 133 is used to enable communication between the database access device and other devices (such as clients, read-write databases, and read-only databases).

[0454] The memory 132 may include random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage.

[0455] 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, or discrete hardware components.

[0456] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method steps as described in the above method embodiments. The methods described in the above embodiments can be implemented wholly or partially by software, hardware, firmware, or any combination thereof. If implemented in software, the functionality can be stored as one or more instructions or code on or transmitted over the computer-readable medium. The computer-readable medium can include computer storage media and communication media, and can also include any medium capable of transferring a computer program from one place to another. The storage medium can be any target medium accessible by a computer.

[0457] In one possible implementation, a computer-readable medium may include RAM, ROM, compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage or other magnetic storage devices, or any other medium targeted to carry or to store the required 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 coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. As used herein, disks and optical discs include optical discs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs optically reproduce data using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0458] This application also provides a computer program product, which includes a computer program. When the computer program is run, it causes the computer to perform the method steps as described in the above method embodiments.

[0459] This 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 via a line. The at least one processor is used to run computer programs or instructions to perform the method steps in the above method embodiments.

[0460] 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, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0461] This application describes embodiments of methods, apparatus (systems), and computer program products according to embodiments of this application with reference to flowchart illustrations and / or block diagrams. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processing unit of a general-purpose computer, special-purpose computer, embedded processor, or other programmable device to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing device, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0462] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of the present invention should be included within the scope of protection of the present invention.

Claims

1. A communication method, executed by a terminal, characterized in that, The method includes: Receive first information from the base station, wherein the first information is used to indicate whether to transmit the application path loss offset value for the physical random access channel PRACH. If the first information indicates that a path loss offset value is applied for a PRACH transmission, the path loss offset value is applied for the PRACH transmission to determine the transmit power for the PRACH transmission.

2. The method according to claim 1, characterized in that, The method further includes: If the first information indicates that a path loss offset value is not applied for a PRACH transmission, the transmit power for the PRACH transmission is determined if the path loss offset value is not applied for the PRACH transmission.

3. The method according to claim 1 or claim 2, characterized in that, The first information occupies 1 bit. When the value of the bit is 1, the first information indicates that a path loss offset value is applied for PRACH transmission. When the value of the bit is 0, the first information indicates that a path loss offset value is not applied for PRACH transmission.

4. The method according to any one of claims 1 to 3, characterized in that, The path loss offset value is associated with a transmission status indicator.

5. The method according to any one of claims 1 to 4, characterized in that, Applying the path loss offset value to the PRACH transmission to determine the transmit power for the PRACH transmission includes: A second path loss is determined based on the path loss offset value and the first path loss, wherein the first path loss is determined by the terminal based on the downlink reference signal from the base station, and the second path loss is used to determine the transmit power for the PRACH transmission.

6. The method according to any one of claims 1 to 5, characterized in that, The first information is carried in the downlink control information (DCI).

7. A communication method, executed by a base station, characterized in that, The method includes: Send first information to the terminal, wherein the first information is used to indicate whether the terminal transmits the application path loss offset value for the physical random access channel PRACH. If the first information indicates that a path loss offset value is applied for a PRACH transmission, the terminal applies the path loss offset value for the PRACH transmission to determine the transmit power for the PRACH transmission.

8. A communication method, executed by a terminal, characterized in that, The method includes: Receive first information from the base station, wherein the first information is used to indicate a first path loss offset value for uplink transmission; A second path loss is determined based on the difference between the first path loss and the offset value of the first path loss, wherein the first path loss is determined by the terminal based on the downlink reference signal from the base station. The transmit power for the uplink transmission is determined based on the second path loss.

9. The method according to claim 8, characterized in that, The first information is carried in Radio Resource Control (RRC) signaling.

10. The method according to any one of claims 8 to 9, characterized in that, The method further includes: Receive second information from the base station, wherein the second information is used to indicate a second path loss offset value for uplink transmission; The third path loss is determined based on the first path loss and the offset value of the second path loss. Based on the third path loss, determine the transmission power for the uplink transmission; The second information is carried in the Multimedia Access Control Unit (MAC CE) signaling.

11. The method according to any one of claims 8 to 10, characterized in that, The first information used to indicate the first path loss offset value for uplink transmission includes: The first information is used to indicate a transmission status indicator, which is associated with the offset value of the path loss.

12. The method according to any one of claims 8 to 11, characterized in that, The uplink transmission includes at least one of the following: Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), or Uplink Reference Signal.

13. A communication method, executed by a base station, characterized in that, The method includes: Send first information to the terminal, wherein the first information is used to indicate a first path loss offset value for uplink transmission, so that the terminal determines a second path loss value based on the difference between the first path loss value and the first path loss offset value, and determines a transmission power for the uplink transmission based on the second path loss value, wherein the first path loss value is determined by the terminal based on a downlink reference signal from the base station.

14. An electronic device, characterized in that, include: Processor and memory; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to perform the method as described in any one of claims 1 to 6, or to perform the method as described in claim 7, or to perform the method as described in any one of claims 8 to 12, or to perform the method as described in claim 13.

15. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions that, when executed by a computer, implement the method as described in any one of claims 1 to 6, or perform the method as described in claim 7, or perform the method as described in any one of claims 8 to 12, or perform the method as described in claim 13.

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