Transmission power instruction and determination method, device, terminal, equipment, and medium

Abstract

To provide a method, a device, an apparatus, and a medium for instructing and determining transmission power.SOLUTION: In a communication system including a network apparatus on a network side and a terminal that wirelessly communicates with the network apparatus, the network apparatus includes a step of obtaining second instruction information instructing a maximum permissible emission amount (MPE) value of the terminal and determining a maximum permissible transmission power of at least one uplink beam that satisfies the maximum permissible emission amount (MPE) limit, and a step of transmitting first instruction information including an identifier of the uplink beam and power correlation information of the uplink beam to the terminal to instruct the determined maximum permissible power of the beam.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to the field of communication technology, and in particular to a method, apparatus, terminal, device and medium for indicating and determining transmission power. [Background technology]

[0002] In 5G New Radio (NR) technology, especially when the communication frequency band is Frequency Range 2 (FR2), high-frequency channels decay quickly, so beam-based transmission and reception must be used to ensure coverage.

[0003] In related technology, when a terminal transmits a beam through an antenna panel, there is a Maximum Permissible Exposure (MPE) limit to prevent harm to the human body. If the radiation amount due to the transmission power used in the transmission beam exceeds the MPE limit, the transmission power of the beam needs to be limited, for example, the backoff of the transmission power of the beam needs to be controlled, which affects the uplink transmission performance of the terminal. Summary of the Invention

[0004] The embodiments of the present disclosure provide a method, device, terminal, equipment and medium for indicating and determining transmission power.

[0005] One aspect according to an embodiment of the present disclosure provides a method for indicating transmission power, comprising: determining a maximum allowed transmission power of at least one uplink beam of a terminal, the maximum allowed transmission power being the maximum transmission power that satisfies an MPE constraint of the terminal; and transmitting first instruction information for instructing the maximum allowable transmission power of at least one of the uplink beams.

[0006] In a possible embodiment, the step of transmitting first indication information for indicating the maximum permitted transmission power of the at least one uplink beam comprises: transmitting the first indication information by uplink control information (UCI); or The method includes sending the first indication information by message 3 in a four-step random access process or message A in a two-step random access process.

[0007] Optionally, the UCI further includes beam measurement results or channel state information measurement results.

[0008] In a possible embodiment, the step of transmitting first indication information for indicating the maximum permitted transmission power of the at least one uplink beam comprises: transmitting the first indication information by an upstream remaining power report; or The method includes transmitting the first indication information by an uplink power limit report, the uplink power limit report being used to indicate a power limit due to an MPE limit.

[0009] Optionally, the step of transmitting first instruction information for instructing the maximum allowable transmission power of the at least one uplink beam includes: The method includes transmitting the first indication information via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0010] Optionally, the step of transmitting first instruction information for instructing the maximum allowable transmission power of the at least one uplink beam includes: a step of transmitting first instruction information for instructing a maximum allowable transmission power of a first uplink beam, wherein the first uplink beam is an uplink beam whose maximum allowable transmission power is smaller than the maximum transmission power of a terminal, or the first uplink beam is any of the uplink beams, or the first uplink beam is an uplink beam whose maximum allowable transmission power is equal to or smaller than the maximum transmission power of a terminal; The maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam that the terminal's capabilities can support.

[0011] Optionally, the first instruction information includes an identifier of an uplink beam and power correlation information of the uplink beam, and the power correlation information includes one or more of the maximum allowable transmission power, or the power interval to which the maximum allowable transmission power belongs, or the level corresponding to the maximum allowable transmission power, or the difference between the maximum allowable transmission power and the maximum transmission power of the terminal, and the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam that the terminal's capabilities can support.

[0012] Optionally, the identifier of the uplink beam includes a reference signal identifier, and the reference signal identifier includes at least one of a synchronization signal block (SSB) ID, a channel state information reference signal (CSI-RS) ID, a positioning reference signal (PRS) ID, a tracking reference signal (TRS) ID, and a detection reference signal (SRS) ID.

[0013] Optionally, the step of determining a maximum allowed transmission power of at least one uplink beam of the terminal comprises: obtaining second indication information for indicating a maximum permissible emission (MPE) value of the terminal; and determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value.

[0014] Optionally, the step of obtaining second indication information for indicating a maximum permissible emission (MPE) value of the terminal includes: obtaining second instruction information stored in the terminal; or The method includes receiving second indication information transmitted by the network device.

[0015] Optionally, the step of determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value includes: determining a first amount of radiation due to a first transmit power; determining a power difference between the first transmission power and the maximum allowable transmission power based on a difference between the first radiation amount and the MPE value; determining a maximum allowable transmit power based on the power difference and a first transmit power; The first transmission power is a set value, or the first transmission power is determined based on configuration information transmitted by a network device.

[0016] Optionally, the step of determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value includes: The method includes a step of setting the transmission power to the maximum allowable transmission power of the uplink beam when the amount of radiation due to the transmission power of the uplink beam reaches the MPE value.

[0017] One aspect according to an embodiment of the present disclosure provides a method for determining a transmission power, the method comprising: receiving first indication information for indicating a maximum permitted transmission power of at least one uplink beam of a terminal, the maximum permitted transmission power being a maximum transmission power that satisfies a maximum permissible emission (MPE) limit of the terminal; and determining the maximum allowable transmission power of the uplink beam based on the first instruction information.

[0018] In a possible embodiment, the step of receiving first indication information for indicating a maximum allowed transmission power of at least one uplink beam of the terminal comprises: receiving the first indication information transmitted by uplink control information (UCI); or The method includes receiving the first indication information sent by message 3 in a four-step random access process or message A in a two-step random access process.

[0019] Optionally, the UCI further includes beam measurement results or channel state information measurement results.

[0020] In a possible embodiment, the step of receiving first indication information for indicating a maximum allowed transmission power of at least one uplink beam of the terminal comprises: receiving the first indication information transmitted by an upstream power headroom report (PHR); or The method includes receiving the first indication information transmitted by an uplink power limit report, the uplink power limit report being used to indicate a power limit due to an MPE limit.

[0021] Optionally, the first indication information is received via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0022] Optionally, the step of receiving first indication information for indicating a maximum allowable transmission power of at least one uplink beam of the terminal includes: receiving first instruction information for instructing a maximum allowable transmission power of a first uplink beam; the first uplink beam is an uplink beam whose maximum allowable transmission power is smaller than the maximum transmission power of a terminal, or the first uplink beam is any uplink beam, or the first uplink beam is an uplink beam whose maximum allowable transmission power is equal to or smaller than the maximum transmission power of a terminal, The maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam that the terminal's capabilities can support.

[0023] Optionally, the first instruction information includes an identifier of an uplink beam and power correlation information of the uplink beam, and the power correlation information includes one or more of the maximum allowable transmission power, or the power interval to which the maximum allowable transmission power belongs, or the level corresponding to the maximum allowable transmission power, or the difference between the maximum allowable transmission power and the maximum transmission power of the terminal, and the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam that the terminal's capabilities can support.

[0024] Optionally, the identifier of the uplink beam includes a reference signal identifier, and the reference signal identifier includes at least one of a synchronization signal block (SSB) identifier, a channel state information - reference signal (CSI-RS) identifier, a tracking reference signal (TRS) identifier, and a positioning reference signal (PRS) identifier.

[0025] One aspect according to an embodiment of the present disclosure provides a transmission power indication device, the device comprising: a determination module for determining a maximum allowed transmission power of at least one uplink beam of the terminal, the maximum allowed transmission power being a maximum transmission power that satisfies a maximum permissible emission (MPE) limit of the terminal; and a transmitting module that transmits first instruction information for instructing the maximum allowable transmission power of at least one of the uplink beams.

[0026] One aspect according to an embodiment of the present disclosure provides an apparatus for determining a transmission power, the apparatus comprising: a receiving module for receiving first indication information for indicating a maximum permitted transmission power of at least one uplink beam of a terminal, the maximum permitted transmission power being a maximum transmission power that satisfies a maximum permissible emission (MPE) limit of the terminal; and a determination module that determines the maximum allowable transmission power of the uplink beam based on the first instruction information.

[0027] One aspect according to an embodiment of the present disclosure provides a terminal, the terminal comprising: a processor; a memory for storing processor-executable instructions; The processor is configured to load and execute the executable instructions to implement any of the methods for indicating transmit power described above.

[0028] One aspect according to an embodiment of the present disclosure provides a network device, the network device comprising: a processor; a memory for storing processor-executable instructions; The processor is configured to load and execute the executable instructions to implement any of the methods for determining transmit power described above.

[0029] In one aspect according to an embodiment of the present disclosure, when instructions of a computer-readable storage medium are executed by a processor, the instructions perform the method for indicating transmission power described in any of the first aspects above or the method for determining transmission power described in any of the second aspects above.

[0030] In an embodiment of the present disclosure, the maximum allowable transmission power of an uplink beam of a terminal is the maximum transmission power that satisfies the maximum permissible emission (MPE) limit of the terminal, and by sending first instruction information to a network equipment for instructing the maximum transmission power of at least one uplink beam, the network equipment can determine the maximum transmission power that the corresponding uplink beam of the terminal can reach based on the first instruction information, and perform resource scheduling based on the maximum transmission power, thereby improving the uplink transmission performance of the terminal.

[0031] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. [Brief explanation of the drawings]

[0032] The drawings described herein are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure, and together with the description serve to explain the principles of the present disclosure. [Figure 1] 1 is a block diagram of a communication system provided by one exemplary embodiment of the present disclosure. [Figure 2] 4 is a flowchart of a method for indicating transmit power according to an exemplary embodiment. [Figure 3] 4 is a flowchart of a method for determining transmit power according to an exemplary embodiment. [Figure 4] 4 is a flowchart of a method for indicating and determining transmit power according to one exemplary embodiment. [Figure 5] 4 is a flowchart of a method for indicating and determining transmit power according to one exemplary embodiment. [Figure 6] 4 is a flowchart of a method for indicating and determining transmit power according to one exemplary embodiment. [Figure 7] 4 is a flowchart of a method for indicating and determining transmit power according to one exemplary embodiment. [Figure 8] 4 is a flowchart of a method for indicating and determining transmit power according to one exemplary embodiment. [Figure 9] 4 is a flowchart of a method for indicating and determining transmit power according to one exemplary embodiment. [Figure 10] 1 is a schematic block diagram of a transmission power indication device according to an exemplary embodiment; [Figure 11] 1 is a schematic block diagram of a transmission power determination device according to an exemplary embodiment; [Figure 12] FIG. 2 is a block diagram of a terminal according to an exemplary embodiment. [Figure 13] FIG. 1 is a block diagram of a network device according to an example embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0033] Reference will now be made in detail to the illustrative examples shown in the drawings. When the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the illustrative examples below do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure, as detailed in the appended claims.

[0034] The terms used in the embodiments of the present disclosure are intended to describe particular embodiments only and are not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and in the appended claims, the singular forms "a," "an," and "the" are also intended to include the plural form unless the context clearly indicates otherwise. The term "and / or," as used herein, should also be understood to mean and include any and all possible combinations of one or more of the associated listed items.

[0035] Although various types of information may be described using the terms first, second, and third in the embodiments of the present disclosure, the information is not limited to these terms. These terms are used only to distinguish between information of the same type. For example, first information may be referred to as second information, and similarly, second information may be referred to as first information, without departing from the scope of the embodiments of the present disclosure. Depending on the context, the terms "if" and "if" as used herein may be interpreted as "in the case of," "when," or "depending on," respectively.

[0036] In the embodiments of the present disclosure, steps are numbered for ease of understanding, but these numbers do not indicate the order in which the steps are performed, nor do they indicate that the numbered steps must be performed together. It should be understood that one or more of the steps numbered sequentially may be performed separately to solve respective technical problems and achieve predetermined technical solutions. Some steps illustrated in the accompanying drawings do not mean that these steps must be performed together. The drawings summarize these steps as an example for ease of understanding.

[0037] FIG. 1 is a block diagram of a communication system provided by one exemplary embodiment of the present disclosure. As shown in FIG. 1, the communication system includes a network side 12 and a terminal 13 .

[0038] The network side 12 includes several network devices 120. The network devices 120 may be base stations, which are devices deployed in an access network to provide wireless communication functions to terminals. The base station may be a base station of a serving cell of the terminal 13 or a base station of a cell adjacent to the serving cell of the terminal 13. Base stations include various types of macro base stations, micro base stations, relay stations, access points, transmission / reception points (TRPs), etc. In systems adopting different radio access technologies, equipment with base station functions may be called by different names. In a 5G NR system, it is called a gNodeB or gNB. As communication technologies develop, the term "base station" may change. The network device 120 may also be a location management function (LMF). In a vehicular network or device-to-device (d2d) communication, the network device may be an in-vehicle device terminal or the terminal 13.

[0039] The terminal 13 may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, each having wireless communication capabilities, as well as various forms of user equipment, mobile stations (MS), terminals, Internet of Things (IoT) network devices, and Industry Internet of Things (IIoT) network devices. For ease of explanation, the above-mentioned devices are collectively referred to as terminals. The network device 120 and the terminal 13 communicate with each other via some air interface technology, such as the Uu interface.

[0040] In the embodiment of the present disclosure, the network device 12 includes one or more Transmission Reception Points (TRPs), also referred to as transmission points, each of which has one or more antenna panels. Multiple TRPs can simultaneously transmit data to one terminal 13.

[0041] The terminal 13 has at least one antenna panel, and can change the direction of the transmit beam and / or receive beam of the antenna panel by adjusting the parameters of the antenna panel. If the terminal 13 has at least two antenna panels, the terminal can simultaneously transmit or receive beams via different antenna panels.

[0042] The communication systems and service scenarios described in the embodiments of the present disclosure are intended to more clearly explain the technical solutions of the embodiments of the present disclosure, and are not intended to limit the technical solutions provided by the embodiments of the present disclosure. Those skilled in the art will understand that the technical solutions provided by the embodiments of the present disclosure can be similarly applied to similar technical challenges associated with the evolution of communication systems and the emergence of new service scenarios.

[0043] To facilitate understanding of the embodiments of the present disclosure, the following describes some nouns related to the embodiments of the present disclosure.

[0044] MPE: Established by regulatory agencies (such as the Federal Communications Commission (FCC)) and the International Commission on Non-Ionizing Radiation Protection (ICNIRP)) and used to limit radio frequency emissions from wireless devices. MPE limits typically apply to wireless devices operating at frequencies above 6 GHz, and because frequencies above 6 GHz interact with the surface of human skin, MPE limits are a regulatory measure of exposure based on area. For example, for millimeter wave systems, MPE is 1 mW / cm 2 The power density received by the human body is limited to 1mW / cm 2 For millimeter wave systems, the MPE must not exceed 20 mW / cm 2 is limited to.

[0045] Maximum Allowable Transmit Power: The maximum transmit power of the terminal that satisfies the MPE limit.

[0046] In some embodiments, the terminal may determine the maximum allowable transmit power based on the distance between the terminal's antenna panel and a user's body part (e.g., a hand). For example, for the same MPE limit, the closer the distance, the lower the maximum allowable transmit power. In other embodiments, for the same MPE limit, the maximum allowable transmit power is a constant value.

[0047] Maximum transmission power of terminal: The maximum transmission power of the terminal without considering the MPE limit.

[0048] In some embodiments, the maximum transmit power of the terminal is the maximum transmit power configured by the network equipment, while in other embodiments, the maximum transmit power of the terminal is the maximum transmit power that the capabilities of the terminal can support.

[0049] Uplink beam: The beam transmitted by the terminal's antenna panel is also called the transmit beam. At the same time, one antenna panel can only transmit one uplink beam.

[0050] In some embodiments, one antenna panel of a terminal transmits only one uplink beam, i.e., the directionality of the transmitted uplink beam is fixed and unchanging. In this case, the maximum allowable transmission power of the uplink beam of the antenna panel is determined, i.e., the maximum allowable transmission power of the antenna panel is determined. The maximum allowable transmission power can be considered to be determined on an antenna panel basis.

[0051] In some embodiments, one antenna panel of a terminal can transmit multiple upstream beams with different directivities, in which case the maximum allowable transmission powers of the multiple upstream beams corresponding to the antenna panel are determined respectively, and the maximum allowable transmission powers of the different upstream beams may be the same or different.

[0052] 2 is a flowchart of a method for indicating transmission power according to an exemplary embodiment. The method is performed by a terminal, and refers to FIG. 2, and includes the following steps:

[0053] In step 201, the maximum allowed transmission power of at least one uplink beam of the terminal is determined.

[0054] The maximum allowed transmission power is the maximum transmission power that satisfies the MPE constraint of the terminal.

[0055] In step 202, first indication information is transmitted to indicate the maximum allowable transmission power of at least one of the uplink beams.

[0056] In a possible embodiment, the step of transmitting first indication information for indicating the maximum permitted transmission power of the at least one uplink beam comprises: transmitting the first indication information by uplink control information (UCI); or The method includes sending the first indication information by message 3 in a four-step random access process or message A in a two-step random access process.

[0057] Optionally, the UCI further includes beam measurement results or channel state information measurement results.

[0058] In a possible embodiment, the step of transmitting first indication information for indicating the maximum permitted transmission power of the at least one uplink beam comprises: transmitting the first indication information via an uplink Power Headroom Report (PHR); or The method includes transmitting the first indication information by an uplink power limit report, the uplink power limit report being used to indicate a power limit due to an MPE limit.

[0059] Optionally, the step of transmitting first instruction information for instructing the maximum allowable transmission power of the at least one uplink beam includes: The method includes transmitting the first indication information via a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH).

[0060] Optionally, the step of transmitting first instruction information for instructing the maximum allowable transmission power of the at least one uplink beam includes: a step of transmitting first instruction information for instructing a maximum allowable transmission power of a first uplink beam, wherein the first uplink beam is an uplink beam whose maximum allowable transmission power is smaller than the maximum transmission power of a terminal, or the first uplink beam is any of the uplink beams, or the first uplink beam is an uplink beam whose maximum allowable transmission power is equal to or smaller than the maximum transmission power of a terminal; The maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam that the terminal's capabilities can support.

[0061] Optionally, the first instruction information includes an identifier of an uplink beam and power correlation information of the uplink beam, and the power correlation information includes one or more of the maximum allowable transmission power, or the power interval to which the maximum allowable transmission power belongs, or the level corresponding to the maximum allowable transmission power, or the difference between the maximum allowable transmission power and the maximum transmission power of the terminal, and the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam that the terminal's capabilities can support.

[0062] Optionally, the identifier of the uplink beam includes a reference signal identifier, and the reference signal identifier includes at least one of a synchronization signal block (SSB) identifier, a channel state information - reference signal (CSI-RS) identifier, a tracking reference signal (TRS) identifier, and a positioning reference signal (PRS) identifier.

[0063] Optionally, the step of determining a maximum allowed transmission power of at least one uplink beam of the terminal comprises: obtaining second indication information for indicating a maximum permissible emission (MPE) value of the terminal; and determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value.

[0064] Optionally, the step of obtaining second indication information for indicating a maximum permissible emission (MPE) value of the terminal includes: obtaining second instruction information stored in the terminal; or The method includes receiving second indication information transmitted by the network device.

[0065] Optionally, the step of determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value includes: determining a first amount of radiation due to a first transmit power; determining a power difference between the first transmission power and the maximum allowable transmission power based on a difference between the first radiation amount and the MPE value; determining a maximum allowable transmit power based on the power difference and a first transmit power; The first transmission power is a set value, or the first transmission power is determined based on configuration information transmitted by a network device.

[0066] Optionally, the step of determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value includes: The method includes a step of setting the transmission power to the maximum allowable transmission power of the uplink beam when the amount of radiation due to the transmission power of the uplink beam reaches the MPE value.

[0067] The steps 201 and 202 and the optional steps may be combined in any manner.

[0068] 3 is a flowchart of a method for determining transmission power according to an exemplary embodiment, which is performed by a network device, and refers to FIG. 3, and includes the following steps:

[0069] In step 301, first indication information for indicating the maximum allowable transmission power of at least one uplink beam of the terminal is received.

[0070] The maximum permitted transmission power is the maximum transmission power that satisfies the maximum permissible emission (MPE) limit of the terminal.

[0071] In step 302, the maximum allowable transmission power of the uplink beam is determined based on the first instruction information.

[0072] In a possible embodiment, the step of receiving first indication information for indicating a maximum allowed transmission power of at least one uplink beam of the terminal comprises: receiving the first indication information transmitted by uplink control information (UCI); or The method includes receiving the first indication information sent by message 3 in a four-step random access process or message A in a two-step random access process.

[0073] Optionally, the UCI further includes beam measurement results or channel state information measurement results.

[0074] In a possible embodiment, the step of receiving first indication information for indicating a maximum allowed transmission power of at least one uplink beam of the terminal comprises: receiving the first indication information transmitted by an upstream power headroom report (PHR); or The method includes receiving the first indication information transmitted by an uplink power limit report, the uplink power limit report being used to indicate a power limit due to an MPE limit.

[0075] Optionally, the first indication information is received via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0076] Optionally, the step of receiving first indication information for indicating a maximum allowable transmission power of at least one uplink beam of the terminal includes: receiving first instruction information for instructing a maximum allowable transmission power of a first uplink beam; the first uplink beam is an uplink beam whose maximum allowable transmission power is smaller than the maximum transmission power of a terminal, or the first uplink beam is any uplink beam, or the first uplink beam is an uplink beam whose maximum allowable transmission power is equal to or smaller than the maximum transmission power of a terminal, The maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam that the terminal's capabilities can support.

[0077] Optionally, the first instruction information includes an identifier of an uplink beam and power correlation information of the uplink beam, and the power correlation information includes one or more of the maximum allowable transmission power, or the power interval to which the maximum allowable transmission power belongs, or the level corresponding to the maximum allowable transmission power, or the difference between the maximum allowable transmission power and the maximum transmission power of the terminal, and the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam that the terminal's capabilities can support.

[0078] Optionally, the identifier of the uplink beam includes a reference signal identifier, and the reference signal identifier includes at least one of a synchronization signal block (SSB) ID, a channel state information reference signal (CSI-RS) ID, a positioning reference signal (PRS) ID, a tracking reference signal (TRS) ID, and a detection reference signal (SRS) ID.

[0079] The steps 301 and 302 may be combined with the optional steps in any way.

[0080] 4 is a flowchart of a method for indicating and determining transmission power according to an exemplary embodiment. The method can be jointly performed by a network device and a terminal. In the embodiment shown in FIG. 4, the terminal transmits a random access message via an uplink beam, and in response, the terminal transmits first indication information to the network device via a PUSCH during the random access process, for indicating the maximum allowed transmission power of at least one of the uplink beams. Referring to FIG. 4, the method includes the following steps:

[0081] In step 401, a terminal receives random access resource configuration information.

[0082] The random access resource configuration information includes location information of the random access resource and uplink transmission power information, the random access resource including at least one of a time domain resource, a frequency domain resource, and a random access preamble resource, and the uplink transmission power information includes an initial transmission power and a power increase granularity.

[0083] The terminal receives the SSB and obtains random access resource allocation information based on the received SSB.

[0084] Each SSB can correspond to an optimal receiving beam.

[0085] In step 402, the terminal transmits a random access message using a first uplink beam based on the random access resource allocation.

[0086] The first uplink beam may be an uplink beam corresponding to a receiving beam having a Reference Signal Receiving Power (RSRP) higher than a threshold, where the RSRP of the receiving beam is obtained by SSB measurement.

[0087] In step 403, if the terminal does not receive a random access response message within the feedback time window, it calculates a new transmission power.

[0088] In some embodiments, the new transmit power is equal to the sum of the previous transmit power and the power increase granularity. For example, if no random response message is received within a time window after the first transmission of a random access message, the new transmit power is equal to the sum of the initial transmit power and the power increase granularity. If no random response message is received within a time window after the third transmission of a random access message, the new transmit power is equal to the sum of the transmit power and the power increase granularity used for the second transmission, i.e., the sum of the initial transmit power and twice the power increase granularity. This can be considered analogously.

[0089] If the calculated new transmission power exceeds the terminal maximum transmission power, the terminal maximum transmission power is set as the new transmission power. The terminal's maximum transmission power is the maximum transmission power corresponding to the first uplink beam configured by the network device, or the terminal's maximum transmission power is the maximum transmission power corresponding to the first uplink beam that the terminal capability can support.

[0090] In step 404, the terminal determines a maximum allowed transmit power of the first uplink beam of the terminal, where the maximum allowed transmit power is the maximum transmit power that satisfies the MPE constraint of the terminal.

[0091] In step 405, if the new transmission power is not greater than the maximum allowed transmission power, the random access message is retransmitted at the new transmission power using the first uplink beam.

[0092] In step 406, if the new transmission power is greater than the maximum allowed transmission power, the random access message is retransmitted at the maximum allowed transmission power using the first uplink beam.

[0093] In another embodiment, step 406 may instead reselect the second uplink beam to transmit the random access message based on the random access resource allocation, i.e., the transmission of the random access message using the first uplink beam is no longer continued.

[0094] In step 407, the terminal transmits first instruction information for instructing the maximum allowable transmission power of the first uplink beam.

[0095] For example, the first instruction information includes an identifier of an uplink beam and power correlation information of the uplink beam, and the power correlation information includes one or more of the maximum allowed transmission power, a power interval to which the maximum allowed transmission power belongs, a level corresponding to the maximum allowed transmission power, or a difference between the maximum allowed transmission power and the maximum transmission power of the terminal. The maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by a network device, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam that the terminal's capability can support.

[0096] Optionally, the identifier of the uplink beam includes a reference signal identifier, and the identifier of the reference signal includes at least one of an SSB ID, a CSI-RS ID, a PRS ID, a TRS ID, and an SRS ID. Further, the reference signal identifier further includes a TRP ID and / or a physical cell ID corresponding to the reference signal.

[0097] In a possible embodiment, when the terminal performs random access using a four-step random access process, the random access message is message 1 (msg.1) in the four-step random access process. In this case, if the terminal determines that the maximum allowable transmission power of the first uplink beam is smaller than the maximum transmission power of the terminal, i.e., the maximum allowable transmission power limits the maximum transmission power of the terminal's uplink beam, after receiving message 2 (msg.2), which is a random access response message, it transmits first indication information by message 3 (msg.3).

[0098] In another possible embodiment, when the terminal performs random access using a two-step random process, the random access message is message A (msg.A) in the two-step random access process, and the terminal transmits the first indication information via a PUSCH in msg.A.

[0099] In step 408, the first instruction information of the network device is received.

[0100] In step 409, the network device determines the maximum allowable transmission power of the first uplink beam of the terminal based on the first indication information.

[0101] In the subsequent communication process, the network device can perform resource scheduling based on the maximum permitted transmission power of the first uplink beam, for example, by instructing the terminal to preferentially use a beam with a larger maximum permitted transmission power for uplink transmission.

[0102] 4, if the determined transmission power is greater than the maximum permitted transmission power, the terminal executes step 407, i.e., transmits only the first indication information corresponding to the uplink beams whose maximum permitted transmission power is less than the maximum transmission power of the terminal. In another embodiment, regardless of whether the transmission power determined by the terminal is greater than the maximum permitted transmission power, the terminal executes step 407, i.e., transmits the first indication information corresponding to all uplink beams.

[0103] In an embodiment of the present disclosure, the maximum allowable transmission power of an uplink beam of a terminal is the maximum transmission power that satisfies the maximum permissible emission (MPE) limit of the terminal, and by sending first instruction information to a network equipment for instructing the maximum transmission power of at least one uplink beam, the network equipment can determine the maximum transmission power that the corresponding uplink beam of the terminal can reach based on the first instruction information, and perform resource scheduling based on the maximum transmission power, thereby improving the uplink transmission performance of the terminal.

[0104] 5 is a flowchart of a method for indicating and determining transmission power according to an exemplary embodiment. The method can be performed jointly by a terminal and a network device. The method is performed jointly by the terminal and the network device. The difference between the method shown in FIG. 4 and the method shown in FIG. 4 is that in the embodiment shown in FIG. 4, the maximum allowed transmission power is transmitted in the random access message when the transmission power of the first uplink beam of the terminal is likely to exceed the corresponding maximum allowed transmission power, and in the embodiment shown in FIG. 5, the maximum allowed transmission power is transmitted in the random access message when it is determined that the maximum allowed transmission power of the first uplink beam of the terminal is lower than the maximum transmission power of the terminal.

[0105] As shown in FIG. 5, the method includes the following steps:

[0106] In step 501, a terminal receives random access resource allocation information.

[0107] For related content, please refer to step 401, and detailed description will be omitted here.

[0108] In step 502, the terminal determines the maximum allowed transmit power of the terminal's first uplink beam.

[0109] The maximum allowed transmission power is the maximum transmission power that satisfies the MPE constraint of the terminal.

[0110] The first uplink beam is an uplink beam for transmitting a random access message, and may be an uplink beam corresponding to a receiving beam having an RSRP higher than a threshold, where the RSRP of the receiving beam is obtained by SSB measurement.

[0111] In step 503, the terminal transmits a random access message using a first uplink beam based on the random access resource allocation.

[0112] If the maximum allowable transmission power of the first uplink beam of the terminal is smaller than the maximum transmission power of the terminal, the random access message includes first indication information.

[0113] For example, the terminal uses a two-step random access process, and transmits the first indication information via PUSCH in message A (msg.A) in the two-step random access process.

[0114] In step 504, the network device receives the random access message.

[0115] When the network device receives the random access message, it obtains the first indication information in the random access message.

[0116] In step 505, the network device determines the maximum allowable transmission power of the first uplink beam of the terminal based on the first indication information.

[0117] In an embodiment such as that shown in Figure 5, the terminal transmits the first instruction information only when the maximum allowable transmission power of the first uplink beam is smaller than the maximum transmission power of the terminal, and in other embodiments, the terminal transmits the first instruction information regardless of whether the maximum allowable transmission power of the first uplink beam of the terminal is smaller than the maximum transmission power of the terminal, i.e., the terminal transmits the first instruction information for any uplink beam.

[0118] 6 is a flowchart of a method for indicating and determining transmit power according to an exemplary embodiment. The method can be performed jointly by a terminal and a network device. The difference between the method and the embodiment shown in FIG. 5 is that the embodiment shown in FIG. 5 is for a two-step random access process, while the embodiment shown in FIG. 6 is for a four-step random access process.

[0119] As shown in FIG. 6, the method includes the following steps:

[0120] In step 601, a terminal receives random access resource allocation information.

[0121] For related content, please refer to step 401, and detailed description will be omitted here.

[0122] In step 602, the terminal transmits a random access message using a first uplink beam based on the random access resource allocation.

[0123] The first uplink beam may be an uplink beam corresponding to a receive beam having an RSRP higher than a threshold, the RSRP of which is obtained by SSB measurements.

[0124] As an example, the random access message is message 1 (msg.1) in the four-step random access process.

[0125] In step 603, the network device receives the random access message.

[0126] In step 604, the network device transmits a random access response.

[0127] The random access response is msg.2 in the four-step random access process.

[0128] In step 605, the terminal receives a random access response.

[0129] In step 606, the terminal determines the maximum allowed transmit power of the terminal's first uplink beam.

[0130] The maximum allowed transmission power is the maximum transmission power that satisfies the MPE constraint of the terminal.

[0131] It should be noted that step 606 can be executed simultaneously with any of steps 602 to 605, or can be executed between any two adjacent steps among steps 602 to 605.

[0132] In step 607, the terminal sends msg.3.

[0133] If the maximum allowable transmission power of the first uplink beam of the terminal is smaller than the maximum transmission power of the terminal, msg.3 includes first indication information.

[0134] In step 608, the network device receives msg.3.

[0135] After receiving msg.3, the network device acquires the first indication information of msg.3.

[0136] In step 609, the network device determines the maximum allowable transmission power of the first uplink beam of the terminal based on the first indication information.

[0137] In the embodiment shown in Figure 6, the terminal transmits the first instruction information only when the maximum allowable transmission power of the first uplink beam is smaller than the maximum transmission power of the terminal, and in other embodiments, the terminal transmits the first instruction information regardless of whether the maximum allowable transmission power of the first uplink beam of the terminal is smaller than the maximum transmission power of the terminal, i.e., the terminal transmits the first instruction information for any uplink beam.

[0138] In some embodiments, the network device transmits a downlink reference signal for beam measurement, and the terminal receives the downlink reference signal, performs beam measurement, and transmits the beam measurement result. In this case, the terminal can transmit the first indication information and the beam measurement result via a beam measurement report.

[0139] 7 is a flowchart of a method for indicating and determining transmission power according to an exemplary embodiment. The method can be performed jointly by a terminal and a network device. As shown in FIG. 7, the method includes the following steps:

[0140] In step 701, the network device transmits a downlink reference signal for beam measurement.

[0141] Downlink reference signals for beam measurement include, but are not limited to, SSB, CSI-RS, and PRS.

[0142] In step 702, the terminal receives a downlink reference signal for beam measurement.

[0143] In step 703, the terminal performs beam measurement based on the received downlink reference signal.

[0144] For downlink reference signals, beam measurements are performed to obtain measurement values ​​corresponding to each downlink reference signal, such as at least one of Reference Signal Received Power (L1-RSRP) and Signal to Interference plus Noise Ratio (L1-SINR).

[0145] In step 704, the terminal determines a maximum allowed transmit power of a first uplink beam, where the maximum allowed transmit power is the maximum transmit power that satisfies the MPE constraint of the terminal.

[0146] In step 705, the terminal transmits a beam measurement report.

[0147] The beam measurement report includes the beam measurement results obtained in step 703 and a first indication.

[0148] Optionally, the method for transmitting the beam measurement report by the terminal includes, but is not limited to, a periodic report, a semi-static report, or an aperiodic report. Optionally, the beam measurement report can be transmitted on a UCI, and the UCI can be reported on a PUCCH or a PUSCH.

[0149] Optionally, the method of transmitting the beam measurement report is indicated by the network equipment, for example, by one or more combinations of RRC signaling, Medium Access Control (MAC) signaling, and Downlink Control Information (DCI) signaling.

[0150] For the relevant content of the first instruction information, please refer to step 407 above, and detailed description thereof will be omitted here.

[0151] In step 706, the network device receives the beam measurement report.

[0152] In step 707, the network device determines the maximum allowable transmission power of the first uplink beam based on the first indication information.

[0153] In some embodiments, the network device transmits a downlink reference signal for measuring the channel state information, and the terminal receives the downlink reference signal, measures the channel state information, and transmits the measurement result of the channel state information. In this case, the terminal can transmit the first indication information and the measurement result of the channel state information through a channel state information report.

[0154] 8 is a flowchart of a method for indicating and determining transmit power according to an exemplary embodiment. The method can be performed jointly by a terminal and a network device. As shown in FIG. 8, the method includes the following steps:

[0155] In step 801, a network device transmits a downlink reference signal for measuring channel state information.

[0156] By way of example, downlink reference signals for measuring channel state information include, but are not limited to, SSB, CSI-RS, and PRS.

[0157] In step 802, the terminal receives a downlink reference signal for measuring channel state information.

[0158] In step 803, the terminal measures the channel state information based on the received downlink reference signal.

[0159] A measurement value corresponding to each downlink reference signal is obtained by performing a channel state information measurement on the downlink reference signal, for example, the measurement value includes a channel quality indicator (CQI).

[0160] In step 804, the terminal determines a maximum allowed transmit power of a first uplink beam, where the maximum allowed transmit power is the maximum transmit power that satisfies the MPE constraint of the terminal.

[0161] In step 805, the terminal sends a measurement report of the channel state information.

[0162] The channel state information measurement report includes the channel state information measurement result obtained in step 803 and first indication information.

[0163] For the relevant content of the first instruction information, please refer to step 407 above, and detailed description thereof will be omitted here.

[0164] Optionally, the channel state information measurement report also includes information such as a rank indication (RI), a precoding matrix indicator (PMI), and so on.

[0165] Optionally, the method for transmitting the channel state information measurement report by the terminal includes, but is not limited to, a periodic report, a semi-static report, or an aperiodic report. Optionally, the channel state information measurement report may be transmitted on UCI, and the UCI may be reported on PUCCH or PUSCH.

[0166] Optionally, the manner of transmitting the channel state information measurement report is indicated by the network equipment, for example, by one or more combinations of RRC signaling, MAC signaling, and DCI signaling.

[0167] In step 806, the network device receives the channel state information measurement report.

[0168] In step 807, the network device determines the maximum allowable transmission power of the first uplink beam based on the first instruction information.

[0169] In some embodiments, the terminal transmits an uplink reference signal via a first uplink beam, and the network device receives the uplink reference signal and performs beam measurement and / or channel state information measurement and / or positioning measurement based on the uplink reference signal. In this case, the terminal may transmit the first indication information via a beam measurement report (i.e., the first indication information may be transmitted together with the beam measurement result), or may transmit the first indication information via a channel state information measurement report (i.e., the first indication information may be transmitted together with the channel state information measurement result), or may transmit the first indication information together with the channel state information measurement result, or may transmit the first indication information via dedicated signaling.

[0170] 9 is a flowchart of a method for indicating and determining transmission power according to an exemplary embodiment. The method can be performed jointly by a terminal and a network device. As shown in FIG. 9, the method includes the following steps:

[0171] In step 901, a network device transmits uplink reference signal resource allocation information.

[0172] The reference signal configuration information is used to indicate resources for carrying uplink reference signals. For example, the uplink reference signals are SRSs. Optionally, the SRSs are SRSs for uplink beam management, SRSs for channel state information measurement, or SRSs for position measurement.

[0173] Optionally, the uplink reference signal resource allocation information includes uplink resource location information and uplink transmission power correlation information. The uplink resource location information includes at least one of time domain resource location information and frequency domain resource location information. For example, the uplink transmission power information includes an initial transmission power and a power increase granularity.

[0174] In step 902, the terminal receives uplink reference signal resource allocation information.

[0175] In step 903, the terminal determines the transmission power based on the uplink reference signal resource allocation information.

[0176] The terminal determines the transmission power based on the uplink transmission power correlation information. The determination method can refer to the above-mentioned step 403, and detailed description thereof will be omitted here.

[0177] In step 904, the terminal determines the maximum allowable transmit power of the first uplink beam.

[0178] The maximum allowable transmission power is the maximum transmission power that satisfies the MPE limit of the terminal. The first uplink beam is an uplink beam for transmitting the uplink reference signal.

[0179] In step 905, if the determined transmission power is greater than the maximum allowable transmission power, the uplink reference signal is transmitted using the first beam at the maximum allowable transmission power.

[0180] In step 906, if the determined transmission power is not greater than the maximum allowable transmission power, the uplink reference signal is transmitted at the determined transmission power using the first beam.

[0181] In step 907, the terminal transmits first instruction information for instructing the maximum allowable transmission power of the first uplink beam.

[0182] For the relevant content of the first instruction information, please refer to step 407 above, and detailed description thereof will be omitted here.

[0183] In step 907, the terminal determines a receiving beam corresponding to the first uplink beam, determines an identifier of a downlink reference signal corresponding to the receiving beam, and sets the determined identifier of the downlink reference signal as the identifier of the first uplink beam. Alternatively, the terminal determines an identifier of an uplink reference signal corresponding to the first uplink beam, and sets the determined identifier of the uplink reference signal as the identifier of the uplink beam.

[0184] Optionally, the downlink reference signal identifier includes at least one of an SSB ID, a CSI-RS ID, a PRS ID, and a TRS ID, and the uplink reference signal identifier includes an SRS ID.

[0185] In some embodiments, the first indication may be sent together with the next measurement result of the channel state information. For related content, refer to step 705 above, and detailed description thereof will be omitted here.

[0186] In some embodiments, the first indication may be sent together with the next measurement result of the channel state information. For related content, refer to step 705 above, and detailed description thereof will be omitted here.

[0187] In another embodiment, the first indication information may be transmitted by special signaling, which may be carried on a PUCCH or a PUSCH.

[0188] In some embodiments, the terminal performs step 907 if the determined transmit power is greater than the maximum allowed transmit power. In other embodiments, step 907 is performed regardless of whether the transmit power determined by the terminal is greater than the maximum allowed transmit power.

[0189] In step 908, the network device receives the first indication.

[0190] In step 909, the network device determines the maximum allowable transmission power of the first uplink beam of the terminal based on the first indication information.

[0191] Alternatively, the first indication information may be transmitted by an uplink power remaining report in addition to the beam measurement report and the channel state information measurement report. That is, the uplink power remaining report includes the first indication information in addition to the remaining power between the current transmission power used by the terminal for PUSCH transmission and the maximum transmission power of the terminal. A positive value of the remaining power indicates that the terminal can transmit more information at a higher power than the current transmission power, and a negative value of the remaining power indicates that the terminal has exceeded the allowable limit. The network device may allocate uplink resources for the terminal based on the remaining power. For example, the larger the remaining power, the more uplink resources, e.g., the number of RBs, allocated to the terminal. The uplink power remaining report may be transmitted by the PUCCH or the PUSCH.

[0192] Alternatively, the first indication may be transmitted by an uplink power limitation report indicating the power limitation due to the MPE limitation other than the beam measurement report and the channel state information measurement report. The uplink power limitation report may be a newly defined report, and may be transmitted by a MAC Control Element (MAC CE) or UCI, and may be carried by a PUCCH or a PUSCH.

[0193] In any of the above embodiments, the terminal may adopt the following scheme to determine the maximum allowable transmission power of the first uplink beam: Second indication information for indicating a maximum permissible emission (MPE) value of the terminal is obtained, and a maximum permissible transmission power of at least one uplink beam of the terminal is determined based on the MPE value.

[0194] Optionally, the step of obtaining second instruction information for instructing a maximum permissible emission (MPE) value of the terminal includes the step of obtaining second instruction information stored in the terminal or the step of receiving second instruction information transmitted by a network device.

[0195] For example, the second instruction information may be an MPE value, an index corresponding to the MPE value, or an interval to which the MPE value belongs, as long as the MPE value can be determined based on the second instruction information.

[0196] Optionally, the step of determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value includes: a first step of determining a first amount of radiation due to a first transmission power; a second step of determining a power difference between the first transmission power and the maximum allowable transmission power based on the difference between the first radiation amount and the MPE value; and a third step of determining a maximum allowable transmission power based on the power difference and the first transmission power.

[0197] The first transmission power is a set value, or the first transmission power is determined based on configuration information transmitted by a network device.

[0198] For example, the sum of the power difference and the first transmission power is set as the maximum allowable transmission power.

[0199] Optionally, the step of determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value includes: The method includes a step of setting the transmission power to the maximum allowable transmission power of the uplink beam when the amount of radiation due to the transmission power of the uplink beam reaches the MPE value.

[0200] For the radiation amount due to the transmission power of the uplink beam to reach the MPE value, the difference between the radiation amount due to the transmission power of the uplink beam and the MPE value is sufficiently small, for example, approximately zero.

[0201] In a possible embodiment, the second indication may be a transmission power threshold corresponding to the MPE value, which may remain the maximum permitted transmission power.

[0202] 10 is a schematic block diagram of a device for indicating transmission power according to an exemplary embodiment. The device has a function of implementing the terminal in the above-mentioned method embodiment, and the function may be implemented by hardware or by hardware executing corresponding software. As shown in FIG. 10, the device 10 includes a determining module 1001 and a transmitting module 1002.

[0203] The determining module 1001 determines a maximum allowable transmission power of at least one uplink beam of a terminal, the maximum allowable transmission power being the maximum transmission power that satisfies a maximum permissible emission (MPE) limit of the terminal. The transmitting module 1002 transmits first indication information for indicating the maximum allowable transmission power of the at least one uplink beam.

[0204] In a possible embodiment, the transmitting module 1002 includes: Sending the first indication information by uplink control information (UCI), or The first indication information is sent by message 3 in a four-step random access process or message A in a two-step random access process.

[0205] Optionally, the UCI further includes beam measurement results or channel state information measurement results.

[0206] In a possible embodiment, the transmitting module 1002 includes: Sending the first indication information by an upstream remaining power report; or The first indication information is transmitted by an uplink power limit report, and the uplink power limit report is used to indicate a power limit due to an MPE limit.

[0207] Optionally, the sending module 1002 sends the first indication information via a PUCCH or a PUSCH.

[0208] Optionally, the transmitting module 1002 transmits first instruction information for instructing a maximum allowable transmission power of a first uplink beam, wherein the first uplink beam is an uplink beam whose maximum allowable transmission power is smaller than a maximum transmission power of a terminal, or the first uplink beam is any of the uplink beams, or the first uplink beam is an uplink beam whose maximum allowable transmission power is equal to or smaller than a maximum transmission power of a terminal; The maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam that the terminal's capabilities can support.

[0209] Optionally, the determination module 1001 includes an acquisition sub-module 10011 and a determination sub-module 10012; The acquisition sub-module 10011 acquires second indication information for indicating a maximum permissible emission (MPE) value of the terminal; The determination sub-module 10012 determines the maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value.

[0210] Optionally, the acquiring sub-module 10011 acquires second indication information stored in the terminal, or receives second indication information sent by a network device.

[0211] Optionally, the determination submodule 10012 determines a first radiation amount due to a first transmission power, determines a power difference between the first transmission power and the maximum allowable transmission power based on the difference between the first radiation amount and the MPE value, and determines the maximum allowable transmission power based on the power difference and the first transmission power, wherein the first transmission power is a set value, or the first transmission power is determined based on configuration information transmitted by the network equipment.

[0212] Optionally, the determination submodule 10012 sets the transmission power to the maximum allowable transmission power of the uplink beam when the radiation amount due to the transmission power of the uplink beam reaches the MPE value.

[0213] 11 is a schematic block diagram of a device for indicating transmission power according to an exemplary embodiment. The device has a function of implementing the terminal in the above-mentioned method embodiment, and the function may be implemented by hardware or by hardware executing corresponding software. As shown in FIG. 10, the device 1100 includes a receiving module 1101 and a determining module 1102.

[0214] The receiving module 1101 receives first instruction information for instructing a maximum allowable transmission power of at least one uplink beam of the terminal, the maximum allowable transmission power being the maximum transmission power that satisfies a maximum permissible emission (MPE) limit of the terminal. The determining module 1102 determines the maximum allowable transmission power of the uplink beam based on the first instruction information.

[0215] In a possible embodiment, the receiving module 1101 comprises: receiving the first indication information transmitted by uplink control information (UCI); or Receive the first indication information sent by message 3 in the four-step random access process or message A in the two-step random access process.

[0216] Optionally, the UCI further includes beam measurement results or channel state information measurement results.

[0217] In a possible embodiment, the receiving module 1101 comprises: receiving the first indication information transmitted by a upstream power headroom report (PHR); or The first indication information transmitted by an uplink power limit report is received, and the uplink power limit report is used to indicate a power limit due to an MPE limit.

[0218] Optionally, the receiving module 1101 receives the first indication information via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0219] Optionally, the receiving module 1101: receiving first instruction information for instructing a maximum allowable transmission power of a first uplink beam; the first uplink beam is an uplink beam whose maximum allowable transmission power is smaller than the maximum transmission power of a terminal, or the first uplink beam is any uplink beam, or the first uplink beam is an uplink beam whose maximum allowable transmission power is equal to or smaller than the maximum transmission power of a terminal, The maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, or the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam that the terminal's capabilities can support.

[0220] FIG. 12 is a block diagram of a terminal 1200 according to an exemplary embodiment. As shown in FIG. 12, the terminal 1200 includes a processor 1201, a receiver 1202, a transmitter 1203, a memory 1204, and a bus 1205.

[0221] The processor 1201 includes one or more processing cores, and the processor 1201 executes various functional applications and information processing by executing software programs and modules.

[0222] The receiver 1202 and the transmitter 1203 can be implemented as a communication component, which may be a communication chip.

[0223] The memory 1204 is connected to the processor 1201 via a bus 1205 .

[0224] The memory 1204 is used to store at least one instruction executed by the processor 1201 to perform a method executed by the terminal in a method provided in one embodiment of the present disclosure.

[0225] Furthermore, memory 1204 may be implemented by any type of volatile or non-volatile storage device, or combination thereof, including, but not limited to, a magnetic or 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, or a programmable read-only memory (PROM).

[0226] In an exemplary embodiment, a computer-readable storage medium is also provided that stores at least one instruction, at least one program, code set, or instruction set that is loaded and executed by a processor to implement the transmit power provided by the various method embodiments described above.

[0227] 13 is a block diagram illustrating a network device 1300 according to an exemplary embodiment, and as shown in FIG. 13, the network device 1300 may include a processor 1301, a receiver 1302, a transmitter 1303, and a memory 1304. The receiver 1302, the transmitter 1303, and the memory 1304 are each connected to the processor 1301 via a bus.

[0228] The processor 1301 includes one or more processing cores, and executes software programs and modules to perform the method performed by the network device in the method provided in one embodiment of the present disclosure. The memory 1304 can be used to store the software programs and modules. Specifically, the memory 1304 can store an operating system 13041 and an application module 13042 required for at least one function. The receiver 1302 is for receiving communication data transmitted from other devices, and the transmitter 1303 is for transmitting communication data to other devices.

[0229] In an exemplary embodiment, a computer-readable storage medium storing at least one instruction, at least one program, code set, or instruction set that is loaded and executed by a processor to implement the transmit power determination method provided by each of the method embodiments described above is also provided.

[0230] An embodiment of the present disclosure also provides a communication system including a terminal and a network device, wherein the terminal is the terminal provided by the embodiment shown in Figure 12. The network device is the network device provided by the embodiment shown in Figure 13.

[0231] Those skilled in the art will readily contemplate other embodiments of the present disclosure in practice from a consideration of the specification and the invention disclosed herein. This application is intended to cover any modifications, uses, or adaptations of the present disclosure that conform to the general principles of the present disclosure, including common sense or customary technical means known in the art. The specification and embodiments are considered to be exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0232] It should be understood that the present disclosure is not limited to the exact construction described above and shown in the drawings, and that various modifications and variations are possible without departing from the scope of the present disclosure, which is limited only by the appended claims.

Claims

1. A method for indicating transmission power, comprising: determining a maximum allowed transmit power of at least one uplink beam of the terminal, the maximum allowed transmit power being the maximum transmit power that satisfies a maximum permissible emission (MPE) limit of the terminal; transmitting first indication information for indicating a maximum allowable transmission power of at least one of the uplink beams; The step of transmitting first instruction information for instructing a maximum allowable transmission power of the at least one uplink beam includes: a step of transmitting first instruction information for instructing a maximum allowable transmission power of a first uplink beam, wherein the first uplink beam is an uplink beam whose maximum allowable transmission power is smaller than a maximum transmission power of a terminal, or the first uplink beam is an uplink beam whose maximum allowable transmission power is equal to or smaller than the maximum transmission power of a terminal; the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, the first instruction information includes an identifier of the uplink beam and power correlation information of the uplink beam, the power correlation information includes a difference between the maximum allowable transmission power and the maximum transmission power of the terminal, and the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam configured by network equipment; The step of determining a maximum allowed transmission power of at least one uplink beam of the terminal includes: receiving second indication information sent by a network device, the second indication information being used to indicate a maximum permissible emission (MPE) value of the terminal; and determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value. A method for indicating transmission power, comprising:

2. The step of transmitting first instruction information for instructing a maximum allowable transmission power of the at least one uplink beam includes: transmitting the first indication information by uplink control information (UCI); or sending the first indication information by a message 3 in a four-step random access process or a message A in a two-step random access process; 2. The method of claim 1 .

3. The UCI further includes beam measurement results or channel state information measurement results.

3. The method of claim 2.

4. The step of transmitting first instruction information for instructing a maximum allowable transmission power of the at least one uplink beam includes: transmitting the first indication information by an upstream power headroom report (PHR); or transmitting the first indication information by an uplink power limit report, the uplink power limit report being used to indicate power limitation due to MPE limitation; 2. The method of claim 1 .

5. The step of transmitting first instruction information for instructing a maximum allowable transmission power of the at least one uplink beam includes: transmitting the first indication information via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH); 2. The method of claim 1 .

6. the power correlation information includes one or more of the maximum allowable transmission power, a power interval to which the maximum allowable transmission power belongs, or a level corresponding to the maximum allowable transmission power; 2. The method of claim 1 .

7. The identifier of the uplink beam includes a reference signal identifier, and the reference signal identifier includes at least one of a synchronization signal block (SSB) ID, a channel state information reference signal (CSI-RS) ID, a positioning reference signal (PRS) ID, a tracking reference signal (TRS) ID, and a detection reference signal (SRS) ID; 7. The method of claim 6.

8. The step of determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value includes: determining a first amount of radiation due to a first transmit power; determining a power difference between the first transmission power and the maximum allowable transmission power based on the difference between the first radiation amount and the MPE value; determining a maximum allowable transmit power based on the power difference and a first transmit power; The first transmission power is a set value, or the first transmission power is determined based on configuration information transmitted by a network device.

2. The method of claim 1 .

9. The step of determining a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value includes: a step of setting the transmission power of the uplink beam to the maximum allowable transmission power when the amount of radiation due to the transmission power of the uplink beam reaches the MPE value; 2. The method of claim 1 .

10. A method for determining transmission power, comprising: receiving first indication information for indicating a maximum permitted transmission power of at least one uplink beam of a terminal, the maximum permitted transmission power being a maximum transmission power that satisfies a maximum permitted emission (MPE) limit of the terminal; determining a maximum allowable transmission power of the uplink beam based on the first instruction information; The step of receiving first indication information for indicating a maximum allowable transmission power of at least one uplink beam of the terminal includes: receiving first instruction information for instructing a maximum allowable transmission power of a first uplink beam; Sending second indication information to the terminal, the second indication information being used to indicate a maximum permissible emission (MPE) value of the terminal; the first uplink beam is an uplink beam whose maximum allowable transmission power is smaller than the maximum transmission power of a terminal, or the first uplink beam is an uplink beam whose maximum allowable transmission power is equal to or smaller than the maximum transmission power of a terminal, the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, the first instruction information includes an identifier of the uplink beam and power correlation information of the uplink beam, the power correlation information includes a difference between the maximum allowable transmission power and the maximum transmission power of the terminal, and the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam configured by network equipment; The maximum allowable transmission power of at least one uplink beam of the terminal is determined by the terminal based on the MPE value. A method for determining transmission power, comprising:

11. The step of receiving first indication information for indicating a maximum allowable transmission power of at least one uplink beam of the terminal includes: receiving the first indication information transmitted by uplink control information (UCI); or receiving the first indication information sent by a message 3 in a four-step random access process or a message A in a two-step random access process; 11. The method of claim 10.

12. The UCI further includes beam measurement results or channel state information measurement results.

12. The method of claim 11 .

13. The step of receiving first indication information for indicating a maximum allowable transmission power of at least one uplink beam of the terminal includes: receiving the first indication transmitted by an upstream power headroom report (PHR); or receiving the first indication information transmitted by an uplink power limit report, the uplink power limit report being used to indicate a power limit due to an MPE limit; 11. The method of claim 10.

14. receiving the first indication information via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH); 11. The method of claim 10.

15. the power correlation information includes one or more of the maximum allowable transmission power, a power interval to which the maximum allowable transmission power belongs, or a level corresponding to the maximum allowable transmission power; 11. The method of claim 10.

16. The identifier of the uplink beam includes a reference signal identifier, and the reference signal identifier includes at least one of a synchronization signal block (SSB) ID, a channel state information reference signal (CSI-RS) ID, a positioning reference signal (PRS) ID, a tracking reference signal (TRS) ID, and a detection reference signal (SRS) ID; 16. The method of claim 15.

17. A transmission power indicator, comprising: a processing module for determining a maximum allowed transmit power of at least one uplink beam of a terminal, the maximum allowed transmit power being a maximum transmit power that satisfies a maximum permissible emission (MPE) limit of the terminal; a transmitting module for transmitting first indication information for indicating a maximum allowable transmission power of at least one of the uplink beams; the transmitting module transmits first instruction information for instructing a maximum allowable transmission power of a first uplink beam, the first uplink beam being an uplink beam whose maximum allowable transmission power is smaller than a maximum transmission power of a terminal, or the first uplink beam being an uplink beam whose maximum allowable transmission power is equal to or smaller than a maximum transmission power of a terminal; the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, the first instruction information includes an identifier of the uplink beam and power correlation information of the uplink beam, the power correlation information includes a difference between the maximum allowable transmission power and the maximum transmission power of the terminal, and the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam configured by network equipment; The processing module is configured to receive second indication information sent by a network device, the second indication information being used to indicate a maximum permissible emission (MPE) value of the terminal; the processing module is further configured to determine a maximum allowed transmission power of at least one uplink beam of the terminal based on the MPE value. A transmission power indicating device characterized by:

18. A transmission power determination device, comprising: a receiving module for receiving first indication information for indicating a maximum permitted transmission power of at least one uplink beam of a terminal, the maximum permitted transmission power being a maximum transmission power that satisfies a maximum permitted emission (MPE) limit of the terminal; a processing module that determines a maximum allowable transmission power of the uplink beam based on the first instruction information; a transmitting module for transmitting second instruction information to the terminal, the second instruction information being used to indicate a maximum permissible emission (MPE) value of the terminal; the receiving module receives first instruction information for instructing a maximum allowable transmission power of a first uplink beam, the first uplink beam being an uplink beam whose maximum allowable transmission power is smaller than a maximum transmission power of a terminal, or the first uplink beam being an uplink beam whose maximum allowable transmission power is equal to or smaller than a maximum transmission power of a terminal; the maximum transmission power of the terminal is the maximum transmission power corresponding to the first uplink beam configured by network equipment, the first instruction information includes an identifier of the uplink beam and power correlation information of the uplink beam, the power correlation information includes a difference between the maximum allowable transmission power and the maximum transmission power of the terminal, and the maximum transmission power of the terminal is the maximum transmission power corresponding to the uplink beam configured by network equipment; The maximum allowable transmission power of at least one uplink beam of the terminal is determined by the terminal based on the MPE value. A transmission power determination device characterized by:

19. A terminal, a processor; a memory for storing processor-executable instructions; The processor is configured to load and execute the executable instructions to implement the method for indicating transmission power according to any one of claims 1 to 9. A terminal characterized by:

20. A network device, a processor; a memory for storing processor-executable instructions; The processor is configured to load and execute the executable instructions to implement the method for determining transmission power according to any one of claims 10 to 16. A network device characterized by:

21. A computer-readable storage medium, comprising: The instructions of the computer-readable storage medium, when executed by a processor, perform the method for indicating transmission power according to any one of claims 1 to 9. A computer-readable storage medium comprising:

22. A computer-readable storage medium, comprising: The instructions of the computer-readable storage medium, when executed by a processor, perform the method for determining transmission power according to any one of claims 10 to 16. A computer-readable storage medium comprising:

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