Power Control Method, Apparatus, Device, and Storage Medium

Abstract

The present application provides a power control method, apparatus, device and storage medium, and relates to the field of communication technologies. The method includes: receiving indication information for indicating output power corresponding to at least two antenna panels at a terminal during uplink transmission; and determining, based on the output power, the output power of each of the at least two antenna panels during simultaneous uplink transmission. By using the indication information for indicating the output power corresponding to a plurality of antenna panels during uplink transmission to determine the output power corresponding to each antenna panel during uplink transmission, and realizing the control of the transmission power when a plurality of antenna panels perform simultaneous uplink transmission, the arrangement in which a plurality of antenna panels perform simultaneous uplink transmission is promoted, and the throughput of uplink transmission is improved.

Description

Technical Field

[0001] This application Wireless relates to the field of communication technologies, and in particular, to a power control method, apparatus, device, and storage medium.

Background Art

[0002] In Rel17, in the case of a plurality of Transmission-Reception Point (TRP) scenarios, the transmission mode used by a User Equipment (UE) for uplink transmission is a time-division transmission mode, that is, at a first time, the UE transmits uplink data to the TRP1 of an access network device, and at a second time, the UE transmits uplink data to the TRP2 of the access network device.

[0003] In line with the above uplink data transmission, in Rel17, a power control method for a specific TRP (TRP-specific) was also discussed. The process is to instruct the UE with two power control parameter sets to determine the transmission power in two transmission processes respectively.

[0004] On the other hand, the existing power control method is not suitable for the scenario in Rel18 where uplink data is simultaneously transmitted to a plurality of TRPs using a plurality of antenna panels by a space division method.

Summary of the Invention

Problems to be Solved by the Invention

[0005] Embodiments of this application provide a power control method, apparatus, device, and storage medium for allocating the transmission power of antenna panels when performing uplink transmission simultaneously via a plurality of antenna panels. Such technical solutions are as follows.

Means for Solving the Problems

[0006] According to one aspect of the present application, a power control method executed by a terminal, comprising: receiving instruction information for instructing output power corresponding to at least two antenna panels in the terminal during uplink transmission; determining the respective output powers of the at least two antenna panels during simultaneous uplink transmission based on the output power, a power control method is provided.

[0007] According to one aspect of the present application, a power control method executed by a network device, comprising: transmitting instruction information for instructing output power corresponding to at least two antenna panels in a terminal during uplink transmission; receiving uplink data, wherein the uplink data is data when the at least two antenna panels perform simultaneous uplink transmission after the terminal determines the respective output powers of the at least two antenna panels based on the output power instructed by the instruction information, a power control method is provided.

[0008] According to one aspect of the present application, a power control device, comprising: a transmission module that transmits instruction information for instructing output power corresponding to at least two antenna panels in a terminal during uplink transmission; a reception module that receives uplink data, wherein the uplink data is data when the at least two antenna panels perform simultaneous uplink transmission after the terminal determines the respective output powers of the at least two antenna panels based on the output power instructed by the instruction information, a power control device is provided.

[0009] According to one aspect of the present application, a power control device, comprising: a reception module that receives instruction information for instructing output power corresponding to at least two antenna panels in a terminal during uplink transmission; A power control device is provided, including a determination module configured to determine the output power of each of the at least two antenna panels during simultaneous uplink transmission based on the output power.

[0010] According to one aspect of the present application, a terminal is provided, including a processor and a transceiver connected to the processor. The processor is configured to realize the above power control method by loading and executing executable instructions.

[0011] According to one aspect of the present application, a network device includes a processor, a transceiver connected to the processor, and a memory for storing instructions executable by the processor. The processor is configured to realize the power control method described in the embodiments of the present disclosure by loading and executing executable instructions.

[0012] According to one aspect of the present application, a computer-readable storage medium stores at least one instruction, at least one program, a code set, or an instruction set. The at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to realize the above power control method.

[0013] The beneficial effects brought by the technical solution provided by the embodiments of the present application at least include the following. When the terminal performs uplink transmission simultaneously via a plurality of antenna panels, the output power corresponding to each antenna panel during uplink transmission is determined by the instruction information indicating the output power corresponding to the plurality of antenna panels during uplink transmission, thereby realizing the control of the transmission power when the plurality of antenna panels perform uplink transmission simultaneously, promoting the arrangement in which the plurality of antenna panels perform uplink transmission simultaneously, and improving the throughput of the uplink transmission.

Brief Description of the Drawings

[0014] To more clearly explain the technical solution in the embodiments of the present application, the drawings necessary for explaining the embodiments are briefly described below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

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Embodiments for Carrying Out the Invention

[0015] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in more detail below with reference to the drawings.

[0016] In this specification, exemplary embodiments are described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings refer to the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application detailed in the appended claims.

[0017] The terms used in this application are for the sole purpose of describing specific embodiments and are not intended to limit this application. The singular forms "a", "the", and "said" used in this application and the appended claims shall include the plural forms as well, unless the context clearly dictates otherwise. Also, the term "and / or" used in this specification is to be understood to include any and all possible combinations of one or more of the associated listed items.

[0018] In this application, terms such as first, second, third, etc. may be used to describe various information, but it should be understood that this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may be referred to as the second information. Similarly, the second information may be referred to as the first information. Depending on the context, for example, the word "when" used in this specification may be interpreted as "if" or "when" or "depending on the decision".

[0019] Referring to FIG. 1, FIG. 1 shows a schematic diagram of a communication system provided by an embodiment of this application. The communication system can include a terminal 10 and an access network device 20.

[0020] The number of terminals 10 is usually plural, and one or more terminals 10 can be arranged within a cell managed by each access network device 20. The terminal 10 can include various handheld devices with wireless communication functions, in-vehicle devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of UEs, mobile stations (MS), etc. For the sake of convenience of description, in the embodiments of this application, the above devices are collectively referred to as terminals.

[0021] The access network device 20 is a device installed in the access network to provide a wireless communication function to the terminal 10. The network device 20 can include various forms of macro base stations, micro base stations, relay stations, and access points. The access network device 20 may be a location management function network element. Optionally, the location management function network element includes a location server, and the location server can be implemented as any one of LMF ( 1732523898063_0 , location management network element), E-SMLC (Enhanced Serving Mobile Location Centre), SUPL (Secure User Plane Location), and SUPL SLP (SUPL Location Platform). In systems adopting different radio access technologies, the names of devices with the functions of access network devices may be different. For example, in a 5G NR system, it is called gNodeB or gNB. With the evolution of communication technologies, the name of the "access network device" may also change. For the convenience of description, in the embodiments of the present application, the above-mentioned device that provides a wireless communication function to the terminal 10 is collectively referred to as the access network device. A connection can be established between the access network device 20 and the terminal 10 via an air interface. As a result, communication including signaling and data interaction can be executed through this connection. The number of access network devices 20 may be plural, and the communication between two adjacent access network devices 20 may be wired or wireless. The terminal 10 can switch between different access network devices 20, that is, establish connections with different access network devices 20.

[0022] The "5G NR system" in the embodiments of this application may be referred to as a 5G system or an NR system, and those skilled in the art can understand its meaning. The technical solutions described in the embodiments of this application may be applicable to a 5G NR system or to subsequent evolved systems of the 5G NR system.

[0023] Before the UE transmits uplink data to multiple TRPs, the UE needs to determine the transmission power used during uplink data transmission.

[0024] The uplink transmission power of a channel or signal is determined by Equation 1. Equation 1: P = min[P CMAX , {open-loop part} + {closed-loop part} + {other adjustment amount}] Here, P CMAX is the maximum allowable uplink transmission power. The open-loop part is calculated by the open-loop power parameters P0, alpha, and PL. P0 is the open-loop receiving-side power target value, alpha is the partial path loss compensation coefficient, and PL is the estimated downlink path loss value determined based on the reference signal. The closed-loop part is determined by the closed-loop power parameter, that is, the value of the Power Control Adjustment State for dynamically adjusting the uplink transmission power of the terminal once. The other adjustment amount is associated with information such as resource allocation and link adaptation. The open-loop part and the closed-loop part need to be indicated via indication information.

[0025] In the related art, the UE can determine the transmission power of the uplink channel or signal based on the above power control parameters instructed by the base station. Then, the UE evenly allocates the above transmission power to each port of the uplink channel or signal.

[0026] However, in the uplink transmission in the space division scenario, as shown in FIG. 2 showing the uplink transmission in the space division scenario, assuming that the number of data layers of the PUSCH is 2, the data of layer 1 is transmitted from the first antenna panel 211 in the user terminal 210 to the first transceiver point 221 corresponding to the access network device 220 via the first antenna panel 211, and the data of layer 2 is transmitted to the second transceiver point 222 via the second antenna panel 212. Since the channels used from the first antenna panel 211 to the first transceiver point 221 and from the second antenna panel 212 to the second transceiver point 222 are different, it is necessary to determine different output powers for each antenna panel.

[0027] Also, as shown in FIG. 3 showing the uplink transmission in another space division scenario, the data of layer 1 is transmitted from the first antenna panel 311 in the user terminal 310 to the second transceiver point 322 corresponding to the access network device 330 via the first antenna panel 311, and at the same time, the data of layer 1 is transmitted to the first transceiver point 321 via the second antenna panel 312. Here, since the channels used from the first antenna panel 311 to the second transceiver point 322 and from the second antenna panel 312 to the first transceiver point 321 are different, it is necessary to determine different output powers for each panel.

[0028] Also, as shown in FIG. 4 showing the uplink transmission in another space division scenario, the data of layer 1 is transmitted from the first antenna panel 411 in the user terminal 410 to the first transceiver point 421 corresponding to the access network device 430 via the first antenna panel 411, and at the same time, the data of layer 2 is transmitted to the first transceiver point 421 via the second antenna panel 412. From the first antenna panel 411 to the first transceiver point 421, and the second antenna panel 412Since the channels used from to the first transceiver point 421 are different, it is necessary to determine different output powers for each panel.

[0029] However, the power control of the above scenarios cannot be realized by the existing protocol such that each panel in the above scenarios determines its respective output power. This is because the existing power control is based on channels / signals, and the channel output power determined based on the instructed power control parameters is evenly allocated among the ports of the channels / signals.

[0030] Based on this, the present application provides a power control method and a technical solution for allocating power to different antenna panels in a UE in a space division transmission scenario. Hereinafter, the technical solution provided by the present application will be introduced and described using embodiments.

[0031] Referring to FIG. 5, FIG. 5 discloses a flowchart of a power control method provided by an embodiment of the present application. The method is applicable to a terminal in the communication system shown in FIG. 1. The method includes the following steps 510 and 520.

[0032] In step 510, receive indication information for indicating the output power corresponding to at least two antenna panels in the terminal during uplink transmission.

[0033] Optionally, the indication information is information transmitted from a network device to a terminal device, and the network device includes at least one of devices such as an access network device and a core network device.

[0034] Optionally, when the indication information indicates the output power corresponding to at least two antenna panels during uplink transmission, the determination method of the above output power may be indicated. In one example, when the indication information is used to indicate the determination method of the above output power, the indication information can indicate to the terminal to determine the above output power based on the received power control parameter set.

[0035] In step 520, based on the output power, the output power of each of at least two antenna panels during simultaneous uplink transmission is determined.

[0036] In the embodiments of the present application, the terminal is provided with at least two antenna panels for uplink transmission, and the at least two antenna panels are capable of performing uplink transmission simultaneously.

[0037] In some embodiments, the at least two antenna panels can perform uplink transmission using different uplink channels or uplink signals. Optionally, the uplink channel may be a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH). The uplink signal may be an uplink reference signal such as a Sounding References Signal (SRS).

[0038] Exemplarily, the terminal determines the output power corresponding to each of the at least two antenna panels when they perform uplink transmission simultaneously based on the output power indicated by the indication information. In one embodiment, when the at least two antenna panels include a first antenna panel and a second antenna panel, the terminal determines a first output power corresponding to the first antenna panel and a second output power corresponding to the second antenna panel based on the output power indicated by the indication information.

[0039] In summary, in the technical solution provided by the embodiments of the present application, when the terminal performs uplink transmission simultaneously via a plurality of antenna panels, the output power corresponding to each antenna panel during uplink transmission is determined by the indication information indicating the output power corresponding to the plurality of antenna panels during uplink transmission, so as to realize the control of the transmission power when the plurality of antenna panels perform uplink transmission simultaneously, facilitate the arrangement where the plurality of antenna panels perform uplink transmission simultaneously, and improve the throughput of the uplink transmission.

[0040] Referring to FIG. 6, FIG. 6 discloses a flowchart of a power control method provided by an embodiment of the present application. In the embodiment of the present application, the output power indicated by the indication information is the total output power corresponding to at least two antenna panels. The method includes the following steps 610 to 630.

[0041] In step 610, receive indication information for indicating the total output power corresponding to at least two antenna panels in the terminal during uplink transmission.

[0042] Optionally, the indication information is information transmitted from a network device to a terminal device. The network device includes at least one of devices such as an access network device and a core network device.

[0043] In step 620, determine the minimum value of the first output power upper limit and the total output power as the target output power.

[0044] In some embodiments, the terminal has a first output power upper limit P CMAX1 corresponding thereto. Exemplarily, the terminal determines the first output power upper limit P CMAX1 based on a protocol, and the first output power upper limit P CMAX1represents the maximum transmission power that can be achieved during uplink transmission by the terminal, that is, it represents the maximum output power (Maximum Output Power).

[0045] In an embodiment of the present application, based on the first output power upper limit P CMAX1 and the total output power P total , the target transmission power P allocated to at least two antenna panels is determined. Exemplarily, when the total output power P total indicated by the indication information does not exceed the first output power upper limit P CMAX1 of the terminal, it means that the terminal can allocate power based on the total output power P total indicated by the indication information. When the total output power P total indicated by the indication information exceeds the first output power upper limit P CMAX1 of the terminal, in order to indicate that the terminal cannot support the total output power P total indicated by the indication information, power is allocated based on the first output power upper limit P CMAX1 . That is, P = min{P total , P CMAX1}.

[0046] In step 630, the target output power is allocated to at least two antenna panels to serve as the output power corresponding to each antenna panel during uplink transmission.

[0047] Exemplarily, the terminal allocates the target output power P based on a specified method. Optionally, the above specified method may be at least one of the following methods.

[0048] The first Allocate power evenly based on the ports. Exemplarily, based on the ratio of the number of ports corresponding to the antenna panel to the total number of ports of the terminal, the target output power P is allocated to at least two antenna panels, and the output power corresponding to each antenna panel during uplink transmission is set. That is, the target output power is evenly allocated to each port, and different output powers are allocated to different antenna panels based on the number of ports.

[0049] Exemplarily, the total number of ports of the terminal is N, and the number of ports corresponding to the i-th antenna panel among at least two antenna panels is N i In this case, the output power allocated to the i-th antenna panel is (N i / N)P, and the above N ports are ports for uplink transmission, where i and N are positive integers.

[0050] In one example, the case where the terminal has two antenna panels is taken as an example for explanation. That is, the at least two antenna panels include a first antenna panel and a second antenna panel. Exemplarily, the first antenna panel includes N 1 ports, the second antenna panel includes N 2 ports, and N 1 , N 2 are both positive integers. The first output power P panel1 allocated to the first antenna panel is (N 1 / N)P, that is, as shown in Equation 2. The second output power P panel2 allocated to the second antenna panel is (N 2 / N)P, that is, as shown in Equation 3. P total is the above total output power, and P CMAX1 is the above first output power upper limit. Equation 2: P panel1 =(N 1 / N)P = min{P total , P CMAX1}(N 1 / N) Equation 3: P panel2 =(N 2 / N)P = min{Ptotal ,P CMAX1}(N 2 / N)

[0051] The second Allocate based on the ratio of the expected power corresponding to the antenna panel to the total expected power corresponding to all antenna panels. Exemplarily, allocate the target output power P to at least two antenna panels based on the ratio of the expected power corresponding to the antenna panel to the total expected power of at least two antenna panels, and use it as the output power corresponding to each antenna panel during uplink transmission.

[0052] Exemplarily, the total expected power corresponding to the at least two antenna panels is Σn i=1P i where P i is the expected power corresponding to the i-th antenna panel, the number of the at least two antenna panels is n, and when i and n are positive integers, the output power allocated to the i-th antenna panel is (P i / Σn i=1P i )P.

[0053] In one example, the case where the terminal has two antenna panels is taken as an example for explanation, that is, the at least two antenna panels include a first antenna panel and a second antenna panel. Exemplarily, the first expected power corresponding to the first antenna panel is P 1 and the second expected power corresponding to the second antenna panel is P 2 . The first output power P panel1 allocated to the first antenna panel is (P 1 / (P 1 +P 2 ))P, that is, as shown in Equation 4. The second output power P panel2 allocated to the second antenna panel is (P 2 / (P 1 +P 2 ))P, that is, as shown in Equation 5. P total is the total output power, and P CMAX1is the above-mentioned first output power upper limit. Equation 4: P panel1 = (P 1 / (P 1 + P 2 )) P = min{P total , P CMAX1} (P 1 / (P 1 + P 2 )) Equation 5: P panel2 = (P 2 / (P 1 + P 2 )) P = min{P total , P CMAX1} (P 2 / (P 1 + P 2 ))

[0054] In some embodiments, the expected power corresponding to the antenna panel may be determined based on the power control parameter set indicated by the access network device. Exemplarily, when the access network device indicates a power control parameter set corresponding to the TRP, the expected power corresponding to the antenna panel is determined based on the power control parameter set corresponding to the TRP to which the antenna panel is directed during uplink transmission.

[0055] The third Allocate while simultaneously considering the expected power corresponding to the port and the antenna panel. Exemplarily, based on the ratio of the number of ports corresponding to the antenna panel to the total number of ports of the terminal and the ratio of the expected power corresponding to the antenna panel to the total expected power of at least two antenna panels, allocate the target output power P to at least two antenna panels to obtain the output power corresponding to each antenna panel during uplink transmission.

[0056] Exemplarily, the number of ports corresponds to the first weight a, the expected power corresponds to the second weight b, 0 < a < 1, 0 < b < 1, and a + b = 1. The total number of ports of the terminal is N, the number of at least two antenna panels is n, and the number of ports corresponding to the i-th antenna panel among the at least two antenna panels is N i and the expected power corresponding to the i-th antenna panel is P i and the output power allocated to the i-th antenna panel is (a(P i / Σn i=1P i ) + b(N i / N))P, where i, n, and N are all positive integers.

[0057] In one example, the case where the terminal has two antenna panels is taken as an example for explanation, that is, the at least two antenna panels include the first antenna panel and the second antenna panel. The first antenna panel has N 1 ports, the second antenna panel has N 2 ports, the total number of ports of the terminal is N, N 1 , N 2 and N are all positive integers, the first expected power corresponding to the first antenna panel is P 1 and the second expected power corresponding to the second antenna panel is P 2 . When the number of ports and the expected power correspond to different weights respectively, the first output power P panel1 allocated to the first antenna panel is (aP 1 / (P 1 +P 2 ) + bN 1 / N)P, that is, as shown in Equation 6, and the second output power P panel2 allocated to the second antenna panel is (aP 2 / (P 1 +P 2 ) + bN 2 / N)P, that is, as shown in Equation 7. P total is the above total output power, and P CMAX1 is the above first output power upper limit. Equation 6: Ppanel1 = [a(P 1 / (P 1 + P 2 )) + b(N 1 / N)]P = min{P total , P CMAX1}[a(P 1 / (P 1 + P 2 )) + b(N 1 / N)] Equation 7: P panel2 = [a(P 2 / (P 1 + P 2 )) + b(N 2 / N)]P = min{P total , P CMAX1}[a(P 2 / (P 1 + P 2 )) + b(N 2 / N)]

[0058] Optionally, the first weight a and the second weight b may be indicated by indication information. Alternatively, the first weight a and the second weight b may be indicated by an access network device via signaling. Alternatively, the first weight a and the second weight b may be set by the terminal itself. Alternatively, the first weight a and the second weight b may be defined by a protocol.

[0059] Optionally, the specified method may be set by the terminal, or may be indicated by indication information or an access network device via another signal, or may be defined by a protocol, and is not limited herein.

[0060] In summary, in the technical solution provided by the embodiments of the present application, when the terminal performs uplink transmission simultaneously via a plurality of antenna panels, the output power corresponding to each antenna panel during uplink transmission is determined by the indication information indicating the output power corresponding to the plurality of antenna panels during uplink transmission, and the control of the transmission power when the plurality of antenna panels perform uplink transmission simultaneously is realized, thereby promoting the arrangement in which the plurality of antenna panels perform uplink transmission simultaneously and improving the throughput of the uplink transmission.

[0061] In the embodiments of the present application, the indication information is used to indicate the total output power to the terminal, and the terminal allocates the transmission power to a plurality of antenna panels that perform uplink transmission simultaneously based on the total output power, thereby realizing the power control when the plurality of antenna panels perform uplink transmission simultaneously in a space division scenario.

[0062] Referring to FIG. 7, FIG. 7 discloses a flowchart of a power control method provided by an embodiment of the present application. In the embodiments of the present application, the indication information is used to indicate to determine the total output power based on at least two power control parameter sets. The method includes the following steps 710 to 730.

[0063] In step 710, receive indication information for instructing to determine the total output power corresponding to at least two antenna panels during uplink transmission based on at least two power control parameter sets.

[0064] Optionally, each power control parameter set includes at least one of the following parameters. a. Open-loop receive-side power target value P O b. Path loss compensation coefficient α Here, 0 < α ≤ 1. When α = 1, full path loss compensation is indicated, and when 0 < α < 1, partial path loss compensation is indicated. c. Downlink path loss estimated value (PL-RS) d. Initial Power Control Adjustment State value

[0065] Optionally, the terminal receives radio resource control (RRC) signaling sent from an access network device, and the RRC signaling instructs at least two sets of power control parameters.

[0066] Optionally, the terminal receives media access control (MAC) control element (CE) signaling sent from an access network device, and the MAC CE signaling instructs at least two sets of power control parameters.

[0067] Optionally, the terminal receives DCI signaling sent from an access network device, and the DCI signaling instructs at least two sets of power control parameters.

[0068] In step 720, determine the total output power based on at least two sets of power control parameters.

[0069] Exemplarily, each set of power control parameters can calculate a corresponding expected transmission power.

[0070] In some embodiments, the terminal determines candidate output powers corresponding to at least two sets of power control parameters respectively, determines the maximum value among at least two candidate output powers as the total output power, or determines the minimum value among at least two candidate output powers as the total output power, or determines the average value of at least two candidate output powers as the total output power, or determines the sum of at least two candidate output powers as the total output power.

[0071] In one example, taking the case where at least two power control parameter sets transmitted from an access network device received by a terminal include a first power control parameter set and a second power control parameter set as an example, a first candidate output power P 1 is determined based on the first power control parameter set, and a second candidate output power P 2 is determined based on the second power control parameter set. Then, the total output power P total may be at least one of max{P 1 ,P 2}, min{P 1 ,P 2}, aver{P 1 ,P 2}, sum{P 1 ,P 2}.

[0072] In some other possible embodiments, the indication information instructs to determine the total output power corresponding to at least two antenna panels during uplink transmission based on one power control parameter set.

[0073] In step 730, determine the output power of each of at least two antenna panels during simultaneous uplink transmission based on the total output power.

[0074] Exemplarily, step 730 may be implemented as step 620, and detailed description here is omitted.

[0075] In summary, in the technical solution provided by the embodiments of the present application, when a terminal performs simultaneous uplink transmission via a plurality of antenna panels, based on indication information indicating the output power corresponding to the plurality of antenna panels during uplink transmission, the output power corresponding to each antenna panel during uplink transmission is determined, and by realizing the control of the transmission power when the plurality of antenna panels perform simultaneous uplink transmission, the arrangement where the plurality of antenna panels perform simultaneous uplink transmission is promoted, and the throughput of the uplink transmission is improved.

[0076] In the embodiments of the present application, the total output power is indicated to the terminal by indication information, and the terminal allocates the transmission power to a plurality of antenna panels that perform uplink transmission simultaneously based on the total output power, thereby realizing power control when the plurality of antenna panels perform uplink transmission simultaneously in a spatial division scenario.

[0077] In the embodiments of the present application, the total output power is determined based on at least two power control parameter sets indicated by an access network device, thereby realizing power control when a plurality of antenna panels perform uplink transmission simultaneously based on the total output power.

[0078] Referring to FIG. 8, FIG. 8 discloses a flowchart of a power control method provided by an embodiment of the present application. In the embodiments of the present application, the output power indicated by the indication information is at least two output powers respectively corresponding to at least two antenna panels, where the i-th output power corresponds to the i-th antenna panel. The method includes the following steps 810, 821, and 822.

[0079] In step 810, receive indication information for indicating at least two output powers respectively corresponding to at least two antenna panels.

[0080] In the embodiments of the present application, the indication information indicates at least two output powers, where the at least two output powers correspond to at least two antenna panels, that is, the i-th output power corresponds to the i-th antenna panel, and i is a positive integer.

[0081] In step 821, when the sum of the at least two output powers is less than or equal to a second output power upper limit, determine the i-th output power among the at least two output powers as the output power corresponding to the i-th antenna panel during uplink transmission.

[0082] In some embodiments, the terminal The second output power upper limit PCMAX2 corresponds. Exemplarily, the terminal corresponds based on the protocol. The above The second output power upper limit P CMAX2 is determined, and the second output power upper limit P CMAX2 limits the sum of the output powers of at least two antenna panels, that is, limits the maximum output power that can be achieved when the at least two antenna panels perform uplink transmission jointly.

[0083] Exemplarily, when the sum of at least two output powers indicated by the indication information does not exceed the second output power upper limit P CMAX2 it is determined that at least two output powers can be set as the output powers corresponding to each antenna panel respectively, that is, the i-th output power is determined as the output power corresponding to the i-th antenna panel during uplink transmission.

[0084] In step 822, when the sum of at least two output powers is greater than the second output power upper limit, based on the ratio of the number of ports corresponding to the antenna panels in the total number of ports of the terminal and the ratio of the expected power corresponding to the antenna panels in the total expected power of at least two antenna panels, the second output power upper limit is allocated to at least two antenna panels to be the output power corresponding to each antenna panel during uplink transmission.

[0085] Exemplarily, when the sum of the powers of at least two output powers indicated by the indication information exceeds the second output power upper limit P CMAX2 it indicates that the terminal cannot perform power control of the antenna panel using the output power indicated by the indication information. Therefore, the second output power upper limit P CMAX2 is allocated to at least two antenna panels to be the output power corresponding to each antenna panel during uplink transmission.

[0086] Exemplarily, the second output power upper limit P CMAX2When allocating, the allocation is performed while considering the expected power corresponding to the port and the antenna panel at the same time. Exemplarily, the number of ports corresponds to the first weight a, the expected power corresponds to the second weight b, 0 ≤ a ≤ 1, 0 ≤ b ≤ 1, and a + b = 1. The total number of ports of the terminal is N, the number of at least two antenna panels is n, and the number of ports corresponding to the i-th antenna panel among the at least two antenna panels is N i and the expected power corresponding to the i-th antenna panel is P i and the output power allocated to the i-th antenna panel is (a(P i / Σn i=1P i ) + b / (N i / N))P CMAX2 where i, n, and N are all positive integers. In particular, when a = 0 and b = 1, the output power allocated to the i-th antenna panel is (N i / N))P CMAX2 and when a = 1 and b = 0, the output power allocated to the i-th antenna panel is (P i / Σn i=1P i )P CMAX2 .

[0087] In one example, the case where the terminal has two antenna panels is taken as an example for explanation, that is, the at least two antenna panels include the first antenna panel and the second antenna panel. The first antenna panel includes N 1 ports, the second antenna panel includes N 2 ports, the total number of ports of the terminal is N, N 1 , N 2 and N are all positive integers, the first expected power corresponding to the first antenna panel is P 1 and the second expected power corresponding to the second antenna panel is P 2 . The number of ports and the expected power correspond to different weights respectively, whereby the first output power P panel1 allocated to the first antenna panel is (aP 1 / (P 1 +P 2 ) + bN 1 / N)P CMAX2 and the second output power P assigned to the second antenna panel panel2 is (aP 2 / (P 1 +P 2 ) + bN 2 / N)P CMAX2 is as follows.

[0088] Optionally, the first weight a and the second weight b may be those indicated by the indication information. Or, the first weight a and the second weight b may be those indicated by the access network device through signaling. Or, the first weight a and the second weight b may be those set by the terminal itself. Or, the first weight a and the second weight b may be those defined by the protocol.

[0089] In some other embodiments, the power may be evenly allocated based on the ports only. That is, when the sum of at least two output powers is greater than the second output power upper limit, based on the ratio of the number of ports corresponding to the antenna panel in the total number of ports of the terminal, the second output power upper limit is allocated to at least two antenna panels, and the output power corresponding to each antenna panel during uplink transmission is used. Note that in the above process, the terminal directly performs power allocation based on the number of ports, and is the same as the allocation result when a = 0 and b = 1 regardless of the first weight and the second weight, but the meaning of the solution is different.

[0090] Exemplarily, when the total number of ports of the terminal is N and the number of ports corresponding to the i-th antenna panel among at least two antenna panels is N i the output power allocated to the i-th antenna panel is (N i / N)P CMAX2 where the above N ports are the ports used for uplink transmission, and i and N are positive integers.

[0091] In one example, the case where the terminal has two antenna panels is described as an example, that is, at least two antenna panels include a first antenna panel and a second antenna panel. Exemplarily, the first antenna panel has N 1 ports, the second antenna panel has N 2 ports, and N 1 , N 2 are both positive integers. The first output power P panel1 assigned to the first antenna panel is (N 1 / N)P CMAX2 , and the second output power P panel2 assigned to the second antenna panel is (N 2 / N)P.

[0092] In some other embodiments, it may also be assigned based only on the ratio of the expected power corresponding to the antenna panel to the total expected power corresponding to all antenna panels. That is, when the sum of at least two output powers is greater than the second output power upper limit, based on the ratio of the expected power corresponding to the antenna panel to the total expected power of at least two antenna panels, the second output power upper limit is assigned to at least two antenna panels, and the output power corresponding to each antenna panel during uplink transmission is used. In the above process, the terminal directly performs power allocation based on the expected power, regardless of the first weight and the second weight, and is the same as the allocation result when a = 1 and b = 0, but the meaning of the solution is different.

[0093] Exemplarily, the total expected power corresponding to the at least two antenna panels is Σn i=1P i , where P i is the expected power corresponding to the i-th antenna panel, the number of the at least two antenna panels is n, i and n are positive integers, and the output power assigned to the i-th antenna panel is (P i / Σn i=1P i )P CMAX2 .

[0094] In one example, a case where the terminal has two antenna panels is described as an example, that is, at least two antenna panels include a first antenna panel and a second antenna panel. Exemplarily, a first expected power corresponding to the first antenna panel is P 1 and a second expected power corresponding to the second antenna panel is P 2 . A first output power P panel1 assigned to the first antenna panel is (P 1 / (P 1 +P 2 )P CMAX2 and a second output power P panel2 assigned to the second antenna panel is (P 2 / (P 1 +P 2 )P CMAX2 .

[0095] In some embodiments, the expected power corresponding to the antenna panel may be determined based on a power control parameter set indicated by the access network device. Exemplarily, the access network device indicates a power control parameter set corresponding to the TRP, whereby the expected power corresponding to the antenna panel is determined by the power control parameter set corresponding to the TRP that the antenna panel points to when performing uplink transmission.

[0096] In summary, in the technical solution provided by the embodiments of the present application, when the terminal performs uplink transmission simultaneously via a plurality of antenna panels, according to the indication information indicating the output power corresponding to the plurality of antenna panels during uplink transmission, the output power corresponding to each antenna panel during uplink transmission is determined, and by realizing the control of the transmission power when the plurality of antenna panels perform uplink transmission simultaneously, the arrangement where the plurality of antenna panels perform uplink transmission simultaneously is promoted, and the throughput of the uplink transmission is improved.

[0097] In the embodiments of the present application, the indication information instructs the terminal to output at least two output powers, and based on the relationship between the sum of the output powers and the second output power upper limit, the output power when at least two antenna panels perform uplink transmission simultaneously is set.

[0098] Referring to FIG. 9, FIG. 9 discloses a flowchart of a power control method provided by an embodiment of the present application. In the embodiments of the present application, the output powers indicated by the indication information are at least two output powers corresponding to at least two antenna panels respectively, where the i-th output power corresponds to the i-th antenna panel. The method includes the following steps 910 to 920.

[0099] In step 910, indication information for instructing at least two output powers corresponding to at least two antenna panels respectively is received.

[0100] In the embodiments of the present application, the indication information instructs at least two output powers, where the at least two output powers correspond to at least two antenna panels, that is, the i-th output power corresponds to the i-th antenna panel, and i is a positive integer.

[0101] Optionally, the correspondence between the output power and the antenna panel may be set by the base station or may be the default correspondence.

[0102] In step 920, the minimum power among the j-th output power and the j-th third output power upper limit is determined as the output power corresponding to the j-th antenna panel during uplink transmission.

[0103] In some embodiments, the terminal corresponds to a third output power upper limit P CMAX3 Exemplarily, the terminal determines the third output power upper limit P based on the protocol, that is, at least two antenna panels each have a third output power upper limit P CMAX3 CMAX3 ​corresponds, where the j-th antenna panel corresponds to the j-th third output power upper limit P CMAX3 and j is a positive integer.

[0104] In an embodiment of the present application, the output power of the j-th antenna panel is determined by both the j-th output power indicated by the indication information and the j-th third output power upper limit P CMAX3 corresponding to the j-th antenna panel. Exemplarily, when the j-th output power indicated by the indication information does not exceed the j-th third output power upper limit P CMAX3 , the output power of the j-th antenna panel is determined as the j-th output power, and when the j-th output power indicated by the indication information exceeds the j-th third output power upper limit P CMAX3 , the output power of the j-th antenna panel is determined as the j-th third output power upper limit P CMAX3 . That is, the output power P panelj of the j-th antenna panel = min{P j , P CMAX3}, where P j is the j-th output power.

[0105] In summary, in the technical solution provided by the embodiment of the present application, when the terminal performs uplink transmission simultaneously through a plurality of antenna panels, according to the indication information indicating the output power corresponding to the plurality of antenna panels during uplink transmission, the output power corresponding to each antenna panel during uplink transmission is determined, and by realizing the control of the transmission power when the plurality of antenna panels perform uplink transmission simultaneously, the arrangement in which the plurality of antenna panels perform uplink transmission simultaneously is promoted, and the throughput of the uplink transmission is improved.

[0106] In an embodiment of the present application, the indication information instructs at least two output powers to the terminal, and based on the relationship between the output power corresponding to the antenna panel and the third output power upper limit, the output power when at least two antenna panels perform uplink transmission simultaneously is set.

[0107] Referring to FIG. 10, FIG. 10 discloses a flowchart of a power control method provided by an embodiment of the present application. In the embodiment of the present application, the indication information instructs to determine at least two output powers based on at least two power control parameter sets. The method includes the following steps 1010 to 1030.

[0108] In step 1010, receive indication information for instructing at least two output powers corresponding to at least two antenna panels respectively and for instructing to determine each output power based on at least two power control parameter sets.

[0109] In the embodiment of the present application, the indication information instructs at least two output powers, where the at least two output powers correspond to at least two antenna panels, that is, the i-th output power corresponds to the i-th antenna panel, and i is a positive integer.

[0110] Optionally, each power control parameter set includes at least one of the following parameters. a. Open-loop received power target value P 0 b. Path loss compensation coefficient α c. Downlink path loss estimation value (PL-RS) d. First power control adjustment state value

[0111] In step 1020, determine the k-th output power among the at least two output powers based on the k-th power control parameter set among the at least two power control parameter sets.

[0112] Exemplarily, the at least two power control parameter sets received by the terminal respectively instruct different transmission powers indicated by the indication information, that is, one power control parameter set is used to determine one transmission power indicated by the indication information, and the transmission power in the indication information corresponds to the antenna panel of the terminal.

[0113] In step 1030, based on at least two output powers, determine the output power of each of at least two antenna panels during simultaneous uplink transmission.

[0114] Exemplarily, step 1030 can be implemented as steps 821 and 822, or can be implemented as step 920, and detailed descriptions thereof are omitted here.

[0115] In summary, in the technical solution provided by the embodiments of the present application, when a terminal performs simultaneous uplink transmission via a plurality of antenna panels, based on the indication information indicating the output power corresponding to the plurality of antenna panels during uplink transmission, determine the output power corresponding to each antenna panel during uplink transmission, and by realizing the control of the transmission power when the plurality of antenna panels perform simultaneous uplink transmission, promote the arrangement where the plurality of antenna panels perform simultaneous uplink transmission, and improve the throughput of uplink transmission.

[0116] In the embodiments of the present application, based on at least two power control parameter sets indicated by an access network device, determine at least two transmission powers indicated by the indication information, and thereby realize power control when a plurality of antenna panels perform simultaneous uplink transmission based on the at least two transmission powers.

[0117] Referring to FIG. 11, FIG. 11 discloses a flowchart of a power control method provided by an embodiment of the present application. In the embodiments of the present application, taking the case where the method is executed by a network device as an example, the method includes the following steps 1110 to 1120.

[0118] In step 1110, transmit indication information for indicating the output power corresponding to at least two antenna panels at a terminal during uplink transmission.

[0119] Optionally, the indication information is information transmitted from a network device to a terminal device, where the network device includes at least one of devices such as an access network device, a core network device, etc.

[0120] Optionally, the output power indicated by the indication information is the total output power corresponding to at least two antenna panels of the terminal.

[0121] Optionally, the indication information instructs to determine the total output power based on at least two sets of power control parameters, and the network device transmits at least two sets of power control parameters to the terminal.

[0122] Optionally, the output power indicated by the indication information is at least two output powers respectively corresponding to at least two antenna panels, where the i-th output power corresponds to the i-th antenna panel.

[0123] Optionally, the indication information instructs to determine at least two output powers based on at least two sets of power control parameters, and transmits at least two sets of power control parameters.

[0124] Optionally, perform radio resource control (RRC) signaling including at least two sets of power control parameters Transmission or perform medium access control control element (MAC CE) signaling Transmission where the MAC CE signaling includes at least two sets of power control parameters, or perform downlink control information (DCI) signaling including at least two sets of power control parameters Transmission to do.

[0125] In step 1120, uplink data is received. The uplink data is data when at least two antenna panels simultaneously perform uplink transmission after determining the output power of each of the at least two antenna panels based on the output power indicated by the terminal according to the indication information.

[0126] In an embodiment of the present application, the uplink data is uplink data transmitted by at least two antenna panels in the terminal through different uplink channels / signals. Optionally, the uplink channel may be a PUSCH or a PUCCH, and the uplink signal may be an uplink reference signal such as an SRS.

[0127] Optionally, the uplink data may be received by a plurality of TRPs, or may be received by one TRP.

[0128] In summary, in the technical solution provided by the embodiment of the present application, the network device transmits indication information to the terminal to indicate the output power corresponding to a plurality of antenna panels during uplink transmission, determines the output power corresponding to each antenna panel during uplink transmission, realizes the control of the transmission power when a plurality of antenna panels simultaneously perform uplink transmission, promotes the arrangement where a plurality of antenna panels simultaneously perform uplink transmission, and improves the throughput of uplink transmission.

[0129] FIG. 12 is a block diagram of a power control device provided by an exemplary embodiment of the present application. As shown in FIG. 12, taking the case where the device is applied to a terminal as an example, the device 1200 includes a receiving module 1210 and a determining module 1220.

[0130] The receiving module 1210 is used to receive indication information for indicating the output power corresponding to at least two antenna panels in the terminal during uplink transmission.

[0131] The determination module 1220 is used to determine the output power of each of the at least two antenna panels during simultaneous uplink transmission based on the output power.

[0132] In some selectable embodiments, the output power indicated by the indication information is the total output power corresponding to the at least two antenna panels.

[0133] In some selectable embodiments, as shown in FIG. 13, the determination module 1210 further includes a determination unit 1211 and an allocation unit 1212.

[0134] The terminal corresponds to a first output power upper limit. The determination unit 1211 determines the minimum value of the first output power upper limit and the total output power as the target output power P. The allocation unit 1212 allocates the target output power P to the at least two antenna panels to obtain the output power corresponding to each antenna panel during uplink transmission.

[0135] In some selectable embodiments, the allocation unit 1212 further allocates the target output power P to the at least two antenna panels based on the ratio of the number of ports corresponding to the antenna panel to the total number of ports of the terminal, to obtain the output power corresponding to each antenna panel during uplink transmission.

[0136] In some selectable embodiments, the at least two antenna panels include a first antenna panel and a second antenna panel, the first antenna panel includes N 1 ports, the second antenna panel includes N 2 ports, the total number of ports of the terminal is N, and N 1 、N 2 and N are all positive integers. The first output power allocated to the first antenna panel is (N 1 / N)P. The second output power assigned to the second antenna panel is (N 2 / N)P.

[0137] In some alternative embodiments, the allocation unit 1012 further allocates the target output power P to the at least two antenna panels based on the ratio of the expected power corresponding to the antenna panel to the total expected power of the at least two antenna panels, and sets the output power corresponding to each antenna panel during uplink transmission.

[0138] In some alternative embodiments, the at least two antenna panels include a first antenna panel and a second antenna panel, the first expected power corresponding to the first antenna panel is P 1 and the second expected power corresponding to the second antenna panel is P 2 . The first output power assigned to the first antenna panel is (P 1 / (P 1 +P 2 ))P, and the second output power assigned to the second antenna panel is (P 2 / (P 1 +P 2 ))P.

[0139] In some alternative embodiments, the allocation unit 1012 further allocates the target output power P to the at least two antenna panels based on the ratio of the number of ports corresponding to the antenna panel to the total number of ports of the terminal and the ratio of the expected power corresponding to the antenna panel to the total expected power of the at least two antenna panels, and sets the output power corresponding to each antenna panel during uplink transmission.

[0140] In some alternative embodiments, the at least two antenna panels include a first antenna panel and a second antenna panel, and the first antenna panel has N 1including a port, and the second antenna panel having N 2 including ports, the total number of ports of the terminal being N, and N 1 , N 2 and N all being positive integers, the first expected power corresponding to the first antenna panel being P 1 and the second expected power corresponding to the second antenna panel being P 2 and the number of ports corresponding to a first weight a, the expected power corresponding to a second weight b, 0 < a < 1, 0 < b < 1, and a + b = 1, the first output power assigned to the first antenna panel being [a(P 1 / (P 1 +P 2 ))+b(N 1 / N)]P, the second output power assigned to the second antenna panel being [a(P 2 / (P 1 +P 2 ))+b(N 2 / N)]P.

[0141] In some alternative embodiments, the indication information instructs to determine the total output power based on at least two power control parameter sets, the receiving module 1210 further receives at least two power control parameter sets, and the determining module 1220 determines the total output power based on the at least two power control parameter sets.

[0142] In some alternative embodiments, the determining unit 1211 further determines candidate output powers respectively corresponding to the at least two power control parameter sets, The determination unit 1211 further determines the maximum value of at least two candidate output powers as the total output power, or determines the minimum value of the at least two candidate output powers as the total output power, or determines the average value of the at least two candidate output powers as the total output power, or determines the sum of the at least two candidate output powers as the total output power.

[0143] In some alternative embodiments, the output power indicated by the indication information is at least two output powers respectively corresponding to the at least two antenna panels, where the i-th output power corresponds to the i-th antenna panel.

[0144] In some alternative embodiments, the terminal corresponds to a second output power upper limit P CMAX2 and the second output power upper limit P CMAX2 limits the sum of the output powers of the at least two antenna panels.

[0145] In some alternative embodiments, when the sum of the at least two output powers is less than or equal to the second output power upper limit P CMAX2 the determination unit 1211 further determines the i-th output power among the at least two output powers as the output power corresponding to the i-th antenna panel during uplink transmission.

[0146] In some alternative embodiments, when the sum of the at least two output powers is greater than the second output power upper limit P CMAX2 the allocation unit 1212 further allocates the second output power upper limit P CMAX2を to the at least two antenna panels based on the ratio of the number of ports corresponding to the antenna panel in the total number of ports of the terminal and the ratio of the expected power corresponding to the antenna panel in the total expected power of the at least two antenna panels, and uses it as the output power corresponding to each antenna panel during uplink transmission.

[0147] In some selectable embodiments, the at least two antenna panels include a first antenna panel and a second antenna panel, the first antenna panel including N 1 ports, the second antenna panel including N 2 ports, the total number of ports of the terminal being N, where N 1 , N 2 and N are all positive integers, the first expected power corresponding to the first antenna panel being P 1 and the second expected power corresponding to the second antenna panel being P 2 .

[0148] The number of ports corresponds to a first weight a, the expected power corresponds to a second weight b, where 0 ≤ a ≤ 1, 0 ≤ b ≤ 1, and a + b = 1, and the first output power allocated to the first antenna panel is [a(P 1 / (P 1 +P 2 ))+b(N 1 / N)]P CMAX2 . The second output power allocated to the second antenna panel is [a(P 2 / (P 1 +P 2 ))+b(N 2 / N)]P CMAX2 .

[0149] In some selectable embodiments, the at least two antenna panels each correspond to a third output power upper limit, where the j-th antenna panel corresponds to the j-th third output power upper limit.

[0150] In some selectable embodiments, the determining unit 1211 further determines the minimum power of the j-th output power and the j-th third output power upper limit as the transmission power corresponding to the j-th antenna panel during uplink transmission.

[0151] In some selectable embodiments, the indication information instructs to determine the at least two output powers based on at least two power control parameter sets.

[0152] The receiving module 1210 further receives at least two power control parameter sets. The determining module 1220 further determines the k-th output power among the at least two output powers based on the k-th power control parameter set among the at least two power control parameter sets.

[0153] In some selectable embodiments, the receiving module 1210 further receives radio resource control (RRC) signaling including the at least two power control parameter sets. Or receives medium access control control element (MAC CE) signaling including the at least two power control parameter sets. Or receives downlink control information (DCI) signaling including the at least two power control parameter sets.

[0154] In summary, in the apparatus provided by the embodiments of the present application, when the terminal performs uplink transmission simultaneously via a plurality of antenna panels, the output power corresponding to each antenna panel during uplink transmission is determined by the indication information instructing the output power corresponding to the plurality of antenna panels during uplink transmission, and the control of the transmission power when the plurality of antenna panels perform uplink transmission simultaneously is realized, thereby promoting the arrangement in which the plurality of antenna panels perform uplink transmission simultaneously and improving the throughput of uplink transmission.

[0155] FIG. 14 is a block diagram of the configuration of a power control apparatus provided by an exemplary embodiment of the present application. As shown in the figure 14 Taking the case where the apparatus is used in a network device as an example, the apparatus 1400 includes a transmitting module 1410 and a receiving module 1420.

[0156] The transmission module 1410 is used to transmit instruction information for instructing the output power corresponding to at least two antenna panels in the terminal during uplink transmission. The reception module 1420 receives uplink data, and the uplink data is data when the at least two antenna panels simultaneously perform uplink transmission after the terminal determines the output power of each of the at least two antenna panels based on the output power indicated by the instruction information.

[0157] In some selectable embodiments, the output power indicated by the instruction information is the total output power corresponding to the at least two antenna panels.

[0158] In some selectable embodiments, the instruction information instructs to determine the total output power based on at least two power control parameter sets.

[0159] The transmission module 1410 further transmits the at least two power control parameter sets.

[0160] In some selectable embodiments, the output power indicated by the instruction information is at least two output powers respectively corresponding to the at least two antenna panels, where the i-th output power corresponds to the i-th antenna panel. In some selectable embodiments, the instruction information instructs to determine the at least two output powers based on at least two power control parameter sets.

[0161] The transmission module 1410 further transmits the at least two power control parameter sets.

[0162] In some selectable embodiments, the transmission module 1410 further transmits radio resource control (RRC) signaling including the at least two power control parameter sets, or transmits media access control control element (MAC CE) signaling including the at least two power control parameter sets, or transmits downlink control information (DCI) signaling including the at least two power control parameter sets.

[0163] In summary, in the device provided by the embodiments of the present application, the network device transmits instruction information to the terminal to instruct the output power corresponding to a plurality of antenna panels during uplink transmission, determines the output power corresponding to each antenna panel during uplink transmission, realizes the control of the transmission power when the plurality of antenna panels perform uplink transmission simultaneously, promotes the arrangement in which the plurality of antenna panels perform uplink transmission simultaneously, and improves the throughput of the uplink transmission.

[0164] FIG. 15 shows a schematic configuration diagram of a communication device 1500 (which can be realized as the above terminal or network device), and the communication device 1500 includes a processor 1510, a receiver 1520, a transmitter 1530, a memory 1540, and a bus 1550.

[0165] The processor 1510 includes one or more processing cores, and the processor 1510 executes various functional applications and information processing by executing software programs and modules.

[0166] The receiver 1520 and the transmitter 1530 can be realized as one communication component, and the communication component may be a single communication chip.

[0167] The memory 1540 is connected to the processor 1510 via the bus 1550.

[0168] The memory 1540 may be used to store at least one instruction, and the processor 1510 executes the at least one instruction to implement each step executed by the terminal in the above method embodiment, or to implement each step executed by the access network device in the above method embodiment.

[0169] Also, the memory 1540 can be implemented by any type of volatile or non-volatile memory device or a combination thereof. The volatile or non-volatile memory device includes, but is not limited to, a magnetic disk or an optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, and a programmable read-only memory (PROM).

[0170] An exemplary embodiment of the present application further provides a power control system. The system includes a terminal and a network device. The terminal includes a power control device provided by the embodiment as shown in FIGS. 12 and 13. The network device includes a power control device provided by the embodiment as shown in FIG. 14.

[0171] An exemplary embodiment of the present application further provides a computer-readable storage medium, in which at least one instruction, at least one program, a code set or an instruction set is stored, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the steps executed by the terminal of the power control method provided by each of the above method embodiments and the steps executed by the network device of the power control method.

[0172] After considering the specification and practicing the invention disclosed herein, those skilled in the art can easily conceive of other embodiments of the present invention. The present disclosure aims to cover any variations, uses or adaptive changes of the present invention, and these variations, uses or adaptive changes follow the general principles of the present disclosure and include common general knowledge in the technical field not disclosed in the present disclosure or commonly used technical means. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0173] It should be noted that the present disclosure is not limited to the exact structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A power control method executed by a terminal, comprising: receiving instruction information for instructing output power corresponding to at least two antenna panels in the terminal during uplink transmission; determining, based on the output power, the output power of each of the at least two antenna panels during simultaneous uplink transmission. A power control method characterized by the above.

2. The output power indicated by the instruction information is the total output power corresponding to the at least two antenna panels. The power control method according to Claim 1, characterized by the above.

3. The terminal corresponds to a first output power upper limit, and the step of determining the output power of each of the at least two antenna panels during simultaneous uplink transmission based on the output power includes: determining the minimum value of the first output power upper limit and the total output power as a target output power P; allocating the target output power P to the at least two antenna panels to obtain the output power corresponding to each antenna panel during uplink transmission. The power control method according to Claim 2, characterized by the above.

4. The step of allocating the target output power P to the at least two antenna panels to obtain the output power corresponding to each during uplink transmission includes: allocating the target output power P to the at least two antenna panels based on the ratio of the number of ports corresponding to the antenna panels to the total number of ports of the terminal, to obtain the output power corresponding to each antenna panel during uplink transmission. The power control method according to Claim 3, characterized by the above.

5. The at least two antenna panels include a first antenna panel and a second antenna panel, and the first antenna panel has N １ ports, the second antenna panel has N ２ ports, the total number of ports of the terminal is N, and N １ , N ２ and N are all positive integers, The first output power assigned to the first antenna panel is (N １ / N)P, The second output power assigned to the second antenna panel is (N ２ / N)P, The power control method according to Claim 4, characterized by the above.

6. The step of allocating the target output power P to the at least two antenna panels to obtain the output power corresponding to each during uplink transmission includes: allocating the target output power P to the at least two antenna panels based on the ratio of the expected power corresponding to the antenna panels to the total expected power of the at least two antenna panels, to obtain the output power corresponding to each antenna panel during uplink transmission. The power control method according to Claim 3, characterized by the above.

7. The at least two antenna panels include a first antenna panel and a second antenna panel, and a first expected power corresponding to the first antenna panel is P １ and a second expected power corresponding to the second antenna panel is P ２ and The first output power assigned to the first antenna panel is (P １ / (P １ + P ２ ))P, The second output power assigned to the second antenna panel is (P ２ / (P １ + P ２ ))P, The power control method according to Claim 6, characterized by the above.

8. The step of allocating the target output power P to the at least two antenna panels and setting the output power corresponding to each during uplink transmission includes: allocating the target output power P to the at least two antenna panels based on the ratio of the number of ports corresponding to the antenna panel to the total number of ports of the terminal and the ratio of the expected power corresponding to the antenna panel to the total expected power of the at least two antenna panels, and setting the output power corresponding to each antenna panel during uplink transmission. The power control method according to claim 3, characterized in that.

9. The at least two antenna panels include a first antenna panel and a second antenna panel, and the first antenna panel includes N １ ports, the second antenna panel includes N ２ ports, the total number of ports of the terminal is N, and N １ , N ２ and N are all positive integers, the first expected power corresponding to the first antenna panel is P １ , and the second expected power corresponding to the second antenna panel is P ２ . The number of ports corresponds to a first weight a, the expected power corresponds to a second weight b, 0 < a < 1, 0 < b < 1, and a + b = 1. The first output power assigned to the first antenna panel is [a(P １ / (P １ +P ２ )) + b(N １ / N)]P, The second output power assigned to the second antenna panel is [a(P ２ / (P １ +P ２ )) + b(N ２ / N)]P, The power control method according to claim 8, characterized in that.

10. The indication information instructs to determine the total output power based on at least two power control parameter sets. The method includes: receiving the at least two power control parameter sets; and determining the total output power based on the at least two power control parameter sets. The power control method according to any one of claims 2 to 9, characterized in that.

11. The step of determining the total output power based on the at least two power control parameter sets includes: determining candidate output powers corresponding to the at least two power control parameter sets respectively; and determining the maximum value of the at least two candidate output powers as the total output power, or determining the minimum value of the at least two candidate output powers as the total output power, or determining the average value of the at least two candidate output powers as the total output power, or determining the sum of the at least two candidate output powers as the total output power. The power control method according to claim 10, characterized in that.

12. The output power indicated by the indication information is at least two output powers corresponding to the at least two antenna panels respectively, and the i-th output power corresponds to the i-th antenna panel. The power control method according to claim 1, characterized in that.

13. The terminal corresponds to a second output power upper limit P ＣＭＡＸ２ and the second output power upper limit P ＣＭＡＸ２ is used to limit the sum of the output powers of the at least two antenna panels The power control method according to claim 12, characterized in that.

14. The step of determining the output power corresponding to each of the at least two antenna panels during uplink transmission based on the expected output power is where the sum of the at least two output powers is less than or equal to the second output power upper limit P ＣＭＡＸ２ including a step of determining, as the output power of the i-th one among the at least two output powers, the output power corresponding to the i-th antenna panel during uplink transmission when the sum is less than or equal to the second output power upper limit P The power control method according to claim 13, characterized in that

15. The step of determining the output power corresponding to each of the at least two antenna panels during uplink transmission based on the expected output power is When the sum of the at least two output powers is greater than the second output power upper limit P ＣＭＡＸ２ Based on the ratio of the number of ports corresponding to the antenna panel to the total number of ports of the terminal and the ratio of the expected power corresponding to the antenna panel to the total expected power of the at least two antenna panels, the second output power upper limit P ＣＭＡＸ２ is allocated to the at least two antenna panels to serve as the output power corresponding to each antenna panel during uplink transmission. The power control method according to claim 13, characterized in that

16. The at least two antenna panels include a first antenna panel and a second antenna panel, the first antenna panel including N １ ports, the second antenna panel including N ２ ports, the total number of ports of the terminal being N, N １ , N ２ and N all being positive integers, a first expected power corresponding to the first antenna panel being P １ , a second expected power corresponding to the second antenna panel being P ２ , The number of ports corresponds to a first weight a, the expected power corresponds to a second weight b, 0 ≤ a ≤ 1, 0 ≤ b ≤ 1, and a + b = 1, The first output power assigned to the first antenna panel is [a(P １ / (P １ +P ２ )) + b(N １ / N)]P ＣＭＡＸ２ whereas, The second output power assigned to the second antenna panel is [a(P ２ / (P １ +P ２ )) + b(N ２ / N)]P ＣＭＡＸ２ where The power control method according to claim 15, characterized in that

17. Each of the at least two antenna panels corresponds to a third output power upper limit, and the j-th antenna panel corresponds to the j-th third output power upper limit, The power control method according to claim 12, characterized in that

18. The step of determining the output power corresponding to each of the at least two antenna panels during uplink transmission based on the expected output power is Determining the minimum power of the j-th output power and the j-th third output power upper limit as the transmission power corresponding to the j-th antenna panel during uplink transmission, The power control method according to claim 17, characterized in that

19. The indication information instructs to determine the at least two output powers based on at least two power control parameter sets, The method is Receiving the at least two power control parameter sets, and Determining the k-th output power of the at least two output powers based on the k-th power control parameter set of the at least two power control parameter sets, further comprising The power control method according to any one of claims 12 to 18, characterized in that

20. The step of receiving at least two power control parameter sets transmitted from an access network device is Receiving radio resource control (RRC) signaling including the at least two power control parameter sets, Or Receiving medium access control control element (MAC CE) signaling including the at least two power control parameter sets, Or Receiving downlink control information (DCI) signaling including the at least two power control parameter sets The power control method according to claim 10 or 19, characterized in that

21. A power control method executed by a network device, comprising: Transmitting indication information for instructing output power corresponding to at least two antenna panels at a terminal during uplink transmission; Receiving uplink data, wherein the uplink data is data when the at least two antenna panels simultaneously perform uplink transmission after the terminal determines the output power of each of the at least two antenna panels based on the output power indicated by the indication information A power control method characterized by the above

22. The output power indicated by the indication information is the total output power corresponding to the at least two antenna panels The power control method according to claim 21, characterized in that

23. The indication information instructs to determine the total output power based on at least two power control parameter sets The method further includes: Transmitting the at least two power control parameter sets The power control method according to claim 22, characterized in that

24. The output power indicated by the indication information is at least two output powers respectively corresponding to the at least two antenna panels, and the i-th output power corresponds to the i-th antenna panel The power control method according to claim 21, characterized in that

25. The indication information instructs to determine the at least two output powers based on at least two power control parameter sets The method further includes: Transmitting the at least two power control parameter sets The power control method according to claim 24, characterized in that

26. The step of transmitting the at least two power control parameter sets includes: Transmitting radio resource control (RRC) signaling including the at least two power control parameter sets Or Transmitting medium access control control element (MAC CE) signaling including the at least two power control parameter sets Or The step of transmitting downlink control information (DCI) signaling including the at least two power control parameter sets, The power control method according to claim 23 or 25, characterized in that.

27. A power control device, A receiving module that receives instruction information for instructing the output power corresponding to at least two antenna panels in a terminal during uplink transmission, A determination module that determines the output power of each of the at least two antenna panels during simultaneous uplink transmission based on the output power, A power control device, characterized in that.

28. A power control device, A transmission module that transmits instruction information for instructing the output power corresponding to at least two antenna panels in a terminal during uplink transmission, A receiving module that receives uplink data, wherein the uplink data is data when the at least two antenna panels perform simultaneous uplink transmission after determining the output power of each of the at least two antenna panels based on the output power instructed by the instruction information, A power control device, characterized in that.

29. A terminal, A processor and A transceiver connected to the processor, The processor realizes the power control method according to any one of claims 1 to 20 by loading and executing executable instructions, A terminal, characterized in that.

30. A network device, A processor and A transceiver connected to the processor, The processor realizes the power control method according to any one of claims 21 to 26 by loading and executing executable instructions, A network device, characterized in that.

31. A computer-readable storage medium, wherein at least one program is stored in the computer-readable storage medium, and the at least one program is loaded and executed by a processor to realize the power control method according to any one of claims 1 to 26, A computer-readable storage medium, characterized in that.

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