Downlink power distribution method and device

Abstract

The embodiment of the invention provides a downlink power distribution method and device. The method comprises: determining power offset value information of a target beam, and sending the power offset value information and / or beam indication information of the target beam, so that a terminal device determines an EPRE value of the target beam according to the received power offset value information and / or beam indication information of the target beam. According to the method, the EPRE of the target beam is dynamically adjusted through the power offset value information, the EPRE is a fixed value relative to the target beam, the total power of the satellite is dynamically shared through different beams, and the resource utilization rate of the satellite is improved, so that the number of beams working normally at the same time is increased, the coverage area of a downlink is increased, and the user experience is improved. The communication performance of the communication system is improved.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a downlink power allocation method and apparatus. Background Art

[0002] Since the network coverage range of ground network devices such as base stations in a communication system is limited, in places where it is impossible to deploy base stations or the cost of deploying base stations is relatively high, such as the ocean, desert, and remote areas, etc., the base station can use a satellite as a relay to communicate with the terminal device, extending the coverage range of the ground network such as the base station.

[0003] The 3rd Generation Partnership Project (3GPP) launched the standardization work on non-terrestrial networks (NTN) in Release 17. And in Release 18, the NTN technology was enhanced. The base station can communicate with the terminal device through the satellite on the downlink or uplink. Among them, the uplink refers to the link where the terminal device sends data to the base station through the satellite. The downlink refers to the link where the base station sends data to the terminal device through the satellite.

[0004] Limited by the satellite EPRE and feeder lines, currently, the satellite cannot activate all the beams emitted by the satellite with the nominal equivalent isotropically radiated power (EIRP) at a given time, resulting in a limited coverage area of the downlink at the same time, which affects the communication performance of the communication system. How to enhance the downlink coverage area and improve the communication performance of the communication system has become a key concern in the industry. Summary of the Invention

[0005] Embodiments of this application provide a downlink power allocation method and apparatus, which are used to enhance the downlink coverage area and improve the communication performance of a communication system including a satellite.

[0006] In a first aspect, an embodiment of the present application provides a downlink power allocation method, which is applied to a network device and specifically includes: determining power offset value information of a target beam, where the power offset value information of the target beam is the offset value information between the energy per resource element (EPRE) value sent by the target beam and the EPRE value of a reference signal, and the EPRE value of the target beam represents the EPRE value allocated by the network device for the target beam; sending the power offset value information and / or beam indication information of the target beam, so that the terminal device determines the EPRE value of the target beam according to the received power offset value information and / or beam indication information of the target beam. By dynamically adjusting the EPRE of the target beam through the power offset value information, as opposed to a fixed EPRE value for the target beam, this method dynamically shares the total transmission power of the satellite among different beams, improving the resource utilization rate of the satellite, thereby increasing the number of beams operating normally at the same time, further increasing the coverage area of the downlink, and enhancing the communication performance of the communication system.

[0007] In a possible implementation, the network device sends the power offset value information and / or beam indication information of the target beam through a first signaling. Optionally, the first signaling is a system information block (SIB) signaling or a radio resource control (RRC) signaling. The SIB signaling includes the power offset value information and / or beam indication information of the target beam, and the RRC signaling includes the power offset value information and / or beam indication information of the target beam.

[0008] In another possible implementation, non-zero power channel state information reference signal (NZP-CSI-RS) additional power offset value information and / or beam indication information of the target beam is sent, so that the terminal device determines the NZP-CSI-RS transmission power of the target beam. The NZP-CSI-RS additional power offset value information is the additional offset value of the beam power offset value relative to a reference power offset value, and the reference power offset value is the offset value powerControlOffsetSS of the EPRE of the NZP-CSI-RS relative to the EPRE of the synchronization signal block (SSB). Thus, this method dynamically adjusts the offset value of the transmission power of the target beam sent by the network device through the NZP-CSI-RS additional power offset value information. Different from a fixed value of the NZP-CSI-RS transmission power of the target beam, this method can further adjust the EPRE of the target beam.

[0009] In yet another possible implementation, the NZP-CSI-RS additional power offset value information and / or beam indication information of the target beam is sent through a second signaling; the second signaling includes the NZP-CSI-RS additional power offset value information and / or beam indication information of the target beam.

[0010] Optionally, when the second signaling is a downlink control signal DCI signaling, if the DCI signaling is the first DCI signaling, the NZP-CSI-RS additional power offset value information and / or beam indication information of N beams are sent through the first DCI signaling; the N beams include the target beam, N is a positive integer, and the first DCI signaling includes the NZP-CSI-RS additional power offset value information and / or beam indication information of the N beams. In this way, the NZP-CSI-RS additional power offset values of multiple beams are transmitted by one signaling, improving the adjustment efficiency.

[0011] Optionally, the beam indication information includes one or more of the following: beam identifier, resource identifier of the reference signal corresponding to the beam, beam position indication information, and beam transmission time information.

[0012] In a second aspect, an embodiment of the present application provides a downlink power allocation method applied to a terminal device. The method includes: receiving the power offset value information and / or beam indication information of the target beam sent by a network device; the power offset value information of the target beam is the offset value information between the energy per resource element (EPRE) value of the target beam and the EPRE value of the reference signal, and the EPRE value of the target beam represents the EPRE value allocated by the network device for the target beam; determining the EPRE value of the target beam according to the power offset value information and / or beam indication information of the target beam.

[0013] In a possible implementation manner, the power offset value information and / or beam indication information of the target beam sent by the network device are received through the first signaling. Optionally, the first signaling is an SIB signaling or an RRC signaling. The SIB signaling includes the power offset value information and / or beam indication information of the target beam, and the RRC signaling includes the power offset value information and / or beam indication information of the target beam.

[0014] In another possible implementation manner, the NZP-CSI-RS additional power offset value information and / or beam indication information of the target beam sent by the network device are received; the NZP-CSI-RS additional power offset value information is the additional offset value of the beam power offset value relative to the reference power offset value, and the reference power offset value is the offset value powerControlOffsetSS of the EPRE of the NZP-CSI-RS relative to the EPRE of the SSB; the NZP-CSI-RS transmission power of the target beam is determined according to the NZP-CSI-RS additional power offset value information and / or beam indication information of the target beam.

[0015] In yet another possible implementation, the NZP-CSI-RS additional power offset value information and / or beam indication information of the target beam sent by the network device is received through a second signaling; the second signaling includes the NZP-CSI-RS additional power offset value information and / or beam indication information of the target beam.

[0016] Optionally, if the DCI signaling is the first DCI signaling, the NZP-CSI-RS additional power offset value information and / or beam indication information of N beams sent by the network device is received through the first DCI signaling; the N beams include the target beam, N is a positive integer, and the first DCI signaling includes the NZP-CSI-RS additional power offset value information and / or beam indication information of the N beams.

[0017] Optionally, the beam indication information includes one or more of the following: beam identifier, resource identifier of the reference signal corresponding to the beam, beam position indication information, and beam transmission time information.

[0018] In a third aspect, an embodiment of the present application provides a communication device, which includes:

[0019] A memory for storing computer instructions;

[0020] A processor for executing the computer program or computer instructions stored in the memory, so that the communication device executes the method according to any one of the first aspect or the second aspect.

[0021] In a fourth aspect, an embodiment of the present application provides a computer storage medium for storing a computer program, which when executed is used to implement the method according to any one of the first aspect or the second aspect.

[0022] Any of the above-provided downlink power allocation methods, communication devices, computer-readable storage media, computer program products, etc. are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a communication system provided by an embodiment of the present application;

[0024] Figure 2 It is an interaction diagram of a downlink power allocation method disclosed by an embodiment of the present application;

[0025] Figure 3 It is a schematic structural diagram of an SIB signaling provided by an embodiment of the present application;

[0026] Figure 4Schematic diagram of a base station sending information to a terminal device provided by an embodiment of the present application;

[0027] Figure 5 Interaction diagram of a downlink power allocation method provided by an embodiment of the present application;

[0028] Figure 6 Flowchart of a method for transmitting information using DCI signaling provided by an embodiment of the present application;

[0029] Figure 7 Interaction diagram of a method for a base station to send beam power indication information provided by an embodiment of the present application;

[0030] Figure 8 Structure example diagram of another communication device disclosed by an embodiment of the present application;

[0031] Figure 9 Structure example diagram of another communication device disclosed by an embodiment of the present application. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the specification and claims of the present application, the singular forms "a", "an", "the", "above", "said", "this" are also intended to include the forms such as "one or more", unless there is a clear opposite indication in the context. It should also be understood that in the embodiments of the present application, "one or more" means one, two or more than two; "and / or" describes the association relationship of associated objects, indicating that three relationships can exist; for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0033] Describing with reference to "one embodiment" or "some embodiments" etc. in this specification means including specific features, structures or characteristics described in conjunction with this embodiment in one or more embodiments of the present application. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments" etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "include", "comprise", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0034] The multiple involved in the embodiments of the present application means greater than or equal to two. It should be noted that in the description of the embodiments of the present application, terms such as "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0035] The embodiments of the present application are applied to a communication system, which may be a second-generation (2G) communication system, a third-generation (3G) communication system, an LTE system, a fifth-generation (5G) communication system, an LTE and 5G hybrid architecture, a 5G New Radio (5G NR) system, and new communication systems emerging in the future development of communications, etc.

[0036] The communication system includes a network device and a terminal device. The network device is a device used to provide network communication functions, and is also called a network element in some cases. The network device can usually be a base station, a ground network device such as a functional unit of the base station. In the embodiments of the present application, the network device refers to a combined device of a ground network device such as a base station and a satellite. An example of a communication system is Figure 1 as shown Figure 1 including a network device and a terminal device 3. Specifically, the network device includes a base station 1 and a satellite 2.

[0037] In the embodiments provided by this application, the base station may be any device with wireless transceiver functions, including but not limited to: the evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in Long Term Evolution (LTE), the base station (gNodeB or gNB) or transmission receiving point (TRP) in New Radio (NR), the base station evolved by 3GPP in the future, the access node in the Wi-Fi system, the wireless relay node, the wireless backhaul node, etc. The base station may be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station, etc. The base station may include one or more co-located or non-co-located transmission reception points (TRPs). The base station may also be a radio controller, a centralized unit (CU), and / or a distributed unit (DU) in the cloud radio access network (CRAN) scenario. The base station may communicate with the terminal device, or communicate with the terminal device through a relay station. The terminal device may communicate with multiple base stations of different technologies. For example, the terminal device may communicate with the base station supporting the LTE network, may also communicate with the base station supporting the 5G network, and may also perform dual connection with the base station supporting the LTE network and the 5G network.

[0038] In the embodiments provided in this application, the terminal device can be in various forms. For example, a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a vehicle-mounted terminal device, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, a wearable terminal device, and so on. The terminal device can sometimes also be referred to as a terminal device, a user equipment (UE), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a mobile device, a remote station, a remote terminal device, a mobile device, a UE terminal device, a terminal device, a wireless communication device, a UE agent, or a UE device, etc. The terminal device can also be a fixed terminal device or a mobile terminal device.

[0039] In the embodiments of this application, the satellite can be in various forms. For example, a geostationary orbit satellite, a polar orbit satellite, a sun-synchronous orbit satellite, etc., which are communication satellites used to provide services such as telephone, data transmission, and television broadcasting. The satellite can also be a navigation satellite used to provide global positioning and navigation services.

[0040] The terminal device 3 establishes satellite communication with the base station 1. To perform data interaction operations through satellite communication, the satellite 2 needs to emit beams, and the satellite 2 needs to activate all beams with a nominal EIRP within a given time duration. The nominal EIRP refers to the minimum EIRP required for the base station to send information to the beam of the terminal device. The nominal EIRPs of different beams may be different, and the nominal EIRP of the same beam at different times may also be different. The EIRP refers to the energy per resource element (EPRE) emitted by the satellite's radio resource unit in a specific direction, which is the product of the satellite's total EPRE and the antenna gain.

[0041] Currently, the EPRE for beam allocation by satellite 2 is a fixed EPRE. For example, the fixed EPRE is the power of the synchronization signal primary broadcast channel block (SS-PBCH-Block). The ss-PBCH-BlockPower refers to the average EPRE value of the resource elements (REs) carrying the second synchronization signal. The unit is dBm. For ease of description hereinafter, the SS-PBCH-Block is abbreviated as SSB.

[0042] Limited by the satellite's transmit power and transmission bandwidth, the satellite can only serve some areas within the coverage range within a certain period of time. Due to the limitations of the transmit power and feeder link, the satellite cannot activate all beams with the nominal EIRP within a given time. If the beams of the satellite are activated with a fixed EPRE value, some beams cannot be activated, thus affecting the satellite's downlink coverage area or coverage quality.

[0043] In view of the above problems, the embodiments of the present application provide a downlink power allocation method, which dynamically adjusts the EPRE allocated by the satellite for the beam during downlink data transmission. Thus, by dynamically sharing the total EPRE of the satellite by different beams, the resource utilization rate of the satellite is improved, and further the number of beams operating normally at the same time is increased, the downlink coverage area is increased, and the communication performance of the communication system is enhanced.

[0044] Figure 2 An interaction diagram of a downlink power allocation method disclosed in the embodiments of the present application. In Figure 2 the process shown, the network device includes a base station and a satellite as an example for illustration. Figure 2 It includes the following steps:

[0045] S201: The network device obtains the power offset value information of the target beam.

[0046] The power offset value information of the target beam refers to the offset value information between the EPRE of the target beam and the EPRE of the reference signal. In the embodiments of the present application, the power offset value information of the target beam can be the power offset value α between the EPRE of the target beam and the EPRE of the reference signal, or the indication information indicating the power offset value α of the target beam, such as indicating the offset value level, etc. The present application does not specifically limit.

[0047] Among them, the EPRE of the reference signal is the EPRE allocated by the network device for each beam in the cell, that is, the EPRE of the reference signal is ss-PBCH-BlockPower. The EPRE of the target beam refers to the EPRE allocated by the network device for the target beam when the target beam transmits the SSB signal. The EPRE of the target beam can be the SSB transmission power. The SSB transmission power is the EPRE value allocated by the network device for the target beam. Specifically, when transmitting the SSB signal, the EPRE value allocated by the satellite determined by the base station for the target beam. In the embodiments of the present application, the SSB transmission power is dynamically changed, that is, the EPRE value allocated by the satellite for the target beam is also dynamically changed. In this way, through the base station, the EPRE value allocated by the satellite for the target beam is dynamically adjusted, so as to ensure the normal operation of the beam, reduce the resource amount occupied by the beam, and enable the satellite to activate more beams within a given time, improving the number of beams served by the satellite at the same time.

[0048] In the embodiments of the present application, the network device first determines the SSB transmission power and ss-PBCH-BlockPower, and then uses the difference between the SSB transmission power and ss-PBCH-BlockPower as the power offset value α of the target beam, that is, α = SSB transmission power - ss-PBCH-BlockPower. The network device will determine the power offset value information corresponding to the power offset value α of the target beam, and send the power offset value information, or the power offset value information and the beam indication information to the terminal device. Among them, α can be positive, negative, or 0, and the embodiments of the present application do not specifically limit the sign of α.

[0049] The terminal device determines the EPRE value of the target beam as the SSB transmission power based on the power offset value α of the target beam and ss-PBCH-BlockPower, based on the EPRE value of the target beam = ss-PBCH-BlockPower + α. In this way, the terminal device can perform measurement and use according to the EPRE value of the target beam.

[0050] S202: The network device sends the power offset value information of the target beam to the terminal device.

[0051] After obtaining the power offset value information of the target beam, the network device sends the power offset value information of the target beam to the terminal device.

[0052] In the embodiments of the present application, the network device can send the power offset value information of the target beam through the first signaling. Specifically, the network device fills the power offset value information of the target beam into the power offset value information filling field of the first signaling, and sends the filled first signaling.

[0053] Exemplarily, the first signaling is a System Information Block (SIB) signaling or a radio resource control (RRC) signaling.

[0054] In addition, to improve the transmission efficiency and enable the terminal device to receive the power offset value information of multiple beams simultaneously, when the network device sends the power offset value information of the target beam, it also sends beam indication information to the terminal device at the same time. The terminal device can match the target beam from multiple beams according to the beam indication information, so as to determine the EPRE value of the received target beam.

[0055] The beam indication information is used to send the power offset value information of the target beam to the terminal device, so that the terminal device can determine the target beam from the beams for transmitting the SSB signal and obtain the EPRE value allocated by the network device for the target beam. In the embodiments of the present application, the beam indication information includes one or more of the following: beam identifier, or resource identifier of the reference signal corresponding to the beam, wave position indication information, and beam transmission time information.

[0056] Among them, the beam identifier is a parameter or identifier for describing the beam propagation direction. According to the beam identifier, the network device can quickly match the target beam from multiple transmitted beams. In addition, if the beams transmitted by the network device are added with beam identifiers, the network device can accurately control the propagation direction and propagation path of the beams, thereby reducing interference between beams and improving the data transmission rate. The beam identifier can be the identity identifier of the beam, pointing angle, scanning angle, etc., which are not specifically limited in the embodiments of the present application.

[0057] The resource identifier of the reference signal (RS) corresponding to the beam is used to uniquely identify the RS corresponding to a beam. The network device can identify the RS according to the resource identifier of the RS and determine the target beam from multiple transmitted beams according to the RS. The type of the resource identifier of the RS is not specifically limited in the present application. For example, it can be a signal name, identifier code, etc.

[0058] The wave position indication information is used to indicate the transmission position of the beam transmission signal. For example, the wave position indication information includes signal arrival direction, departure direction, signal strength, multipath information, etc. In the embodiments of the present application, the network device can select the target beam based on the wave position indication information. The beam transmission time refers to the time when the satellite transmits the beam.

[0059] In an embodiment of the present application, the network device may send the power offset value and beam indication information of the target beam to the terminal device through the first signaling. Specifically, the first signaling includes a field for filling the power offset value and a field for filling the beam indication information. The network device first fills the power offset value information and the beam indication information of the target beam into the corresponding fields, and sends the filled first signaling to the terminal device.

[0060] In one example, the first signaling may be SIB signaling.

[0061] Figure 3 A structural diagram of SIB signaling provided in an embodiment of the present application.

[0062] Figure 3 (a) shows that the SIB signaling includes multiple fields, such as a transmission power offset value field, a beam identification field and a beam position indication information field, and a beam transmission time field.

[0063] The power offset value α of the target beam obtained by the network device is filled into the transmission power offset value field, and the beam identifier is filled into the beam identifier field, the beam position indication information is filled into the beam position indication information field, and the beam transmission time is filled into the beam transmission time field. Figure 3 The SIB signaling shown in (b) in the figure. The adding method may be that the base station fills the corresponding field based on a preset mechanism, which is not specifically limited in the embodiment of the present application.

[0064] The network device sends the filled SIB signaling to the terminal device.

[0065] In another example, the network device can send the power offset value information of the beam to the terminal through radio resource control (RRC) signaling. Specifically, the RRC signaling includes a power offset value field, a beam identification field, a beam position indication information field, and a beam transmission time field. The network device fills the acquired power offset value α information of the target beam, the beam identification, the beam position indication information, and the beam transmission time into the corresponding fields, and sends the added RRC signaling to the terminal device.

[0066] The embodiment of the present application may also send power offset value information through other signaling methods, which is not specifically limited in the present application.

[0067] In addition, the network device may send the power offset value information of one beam at a time. If multiple beams need to be adjusted, the network device sends the power offset value information of the beams multiple times, for example, sending the power offset value information of the first beam, the power offset value information of the second beam, and the power offset value information of the third beam in sequence.

[0068] Furthermore, the network device can simultaneously transmit the power offset value information of multiple beams, and the terminal device corresponding to each beam can separately obtain the EPRE value allocated by the network device for the beam. In this way, the number of beams of the network device server at the same time is realized, and the coverage area of the network device is increased.

[0069] In one example, one beam corresponds to one signaling, and the network device simultaneously sends the signals corresponding to multiple beams to the terminal device.

[0070] Figure 4 It is a schematic diagram of a network device provided by an embodiment of the present application for sending information to a terminal device. Specifically, the network device simultaneously sends the signals corresponding to multiple beams to the terminal devices corresponding to different beams. Figure 4 Taking the example of sending four signals corresponding to four beams for illustration.

[0071] The network device end 1 simultaneously sends four first signals to the terminal device end 2, namely signal 1, signal 2, signal 3, and signal 4. Embodiments of the present application use signal 1, signal 2, signal 3, and signal 4 to represent different signals. Among them, signal 1 is the signal corresponding to the first beam, signal 2 is the signal corresponding to the second beam, signal 3 is the signal corresponding to the third beam, and signal 4 is the signal corresponding to the fourth beam.

[0072] To ensure the reliability of signal transmission, the base station needs to perform anti-interference processing on the simultaneously transmitted signals 1, 2, 3, and 4. Embodiments of the present application do not specifically limit the anti-interference processing method. For example, the anti-interference processing method can be to control the power of signals 1, 2, 3, and 4, or by frequency planning, stagger the use frequencies of different signals to avoid spectrum overlap and other methods.

[0073] In another example, the power offset value information corresponding to multiple beams can be filled into the same signal and the signal is sent to the terminal device. For example, the beams include beam 1, beam 2, and beam 3. The power offset value information corresponding to beam 1 is filled into the x field in the signal, the power offset value information corresponding to beam 2 is filled into the y field in the signal, and the power offset value information corresponding to beam 3 is filled into the z field in the signal. The filled signal is sent to the satellite. Among them, the x field, the y field, and the z field represent different fields. Beam 1, beam 2, and beam 3 are used to represent different beams.

[0074] Embodiments of the present application can also implement simultaneously sending the power offset value information corresponding to multiple beams in other ways, and embodiments of the present application do not specifically limit.

[0075] S203: The terminal device determines the EPRE of the target beam according to the power offset value information of the target beam.

[0076] In one example, after the terminal device receives the power offset value information of the target beam sent by the satellite, it determines the EPRE value of the target beam according to the power offset value information of the target beam. In this way, the terminal device can perform measurements and reception based on the determined EPRE value of the target beam. For example, if the power offset value corresponding to the power offset value information of the target beam received by the terminal device is α, the EPRE value of the reference signal of the target beam is adjusted by α to obtain the EPRE value of the target beam = ss - PBCH - BlockPower + α.

[0077] In another example, considering that the terminal device can accurately match the target beam from multiple beams, in addition to sending the power offset value information of the target beam, the base station can also send beam indication information. The terminal device indicates to obtain the EPRE value of the target beam according to the beam indication information of the target beam. For example, the beams transmitted by the network device include Beam 1, Beam 2, and Beam 3. The specific beam information is shown in Table 1.

[0078] Table 1 Beam Information

[0079] Beam identifier Wave position indication information Beam transmission time EPRE of the reference signal Beam 1 1 (A1, B1, Q1) T1 P Beam 2 2 (A2, B2, Q2) T1 P Beam 3 3 (A3, B3, Q3) T1 P

[0080] In Table 1, A1, A2, and A3 represent different signal arrival directions, B1, B2, and B3 represent different signal departure directions, and Q1, Q2, and Q3 represent different signal strengths. T1 is the beam transmission time, and P is the EPRE of the reference signal allocated by the network device for Beam 1. When the target beam indication information received by the network device is the same as that of Beam 1, then Beam 1 is the target beam, and the EPRE of Beam 1 is determined to be P + α1.

[0081] In one example, if the terminal device receives the power offset value information and beam indication information of the target beam through the first signaling, it parses the first signaling to obtain the power offset value information and beam indication information of the target beam. The terminal device obtains the target beam according to the beam indication information and determines the EPRE value of the target beam according to the power offset value of the target beam.

[0082] In another example, when the terminal device receives multiple signaling at the same time, or receives one signaling, but one signaling includes the power offset value information of multiple beams, the satellite parses the signaling at the same time to obtain the power offset value information of multiple beams, and then obtains the corresponding beam according to the beam indication information in each power offset value information, and adjusts the EPRE corresponding to the beam.

[0083] As shown in Table 1, after the terminal device parses the signaling, it obtains the power offset value information of multiple beams, specifically, the power offset value information corresponding to Beam 1, the power offset value information corresponding to Beam 2, and the power offset value information corresponding to Beam 3. The satellite respectively matches the beams according to the beam indication information in the power offset value information, and adjusts the EPRE allocated by the satellite for the beam by using the power offset value corresponding to the power offset value information of the corresponding beam. Exemplarily, if the power offset value corresponding to Beam 1 is α1, the power offset value corresponding to Beam 2 is α2, and the power offset value corresponding to Beam 3 is α3, then the EPRE of Beam 1 is P + α1, the EPRE of Beam 2 is P + α2, and the EPRE of Beam 3 is P + α3.

[0084] Exemplarily, if the network device allocates 10 beams to the cell and the total EPRE transmitted by the satellite is 400 dBm. Before the adjustment, the EPRE allocated by the network device for each beam is 40 dBm. The nominal EIPR of Beams 1 to 5 is 50 dBm, and the nominal EIRP of Beams 6 to 10 is 30 dBm. Before the adjustment, the network device can only activate Beams 6 to 10. After the adjustment, 50 dBm is allocated to Beams 1 to 5, and 30 dBm is allocated to Beams 6 to 10. Thus, Beams 1 to 10 can all communicate normally.

[0085] Thus, in the downlink data transmission of the embodiments of the present application, the EPRE allocated by the satellite for the beam is dynamically adjusted through the beam power indication information. Thus, by sharing the total EPRE of the satellite by different beams, the resource utilization rate of the satellite is improved, thereby increasing the number of beams that can work properly at the same time and enhancing the communication performance of the communication system.

[0086] In addition, the embodiments of the present application provide a non-zero power channel state information reference signal (NZP-CSI-RS) additional power offset value for determining the beam power offset value allocated by the network device for the target beam.

[0087] Figure 5 It is an interaction diagram of a downlink power allocation method provided by the embodiments of the present application. This method further performs the following operations on the basis of Figure 2 implementation:

[0088] S401: The network device obtains the NZP-CSI-RS attachment power offset value information of the target beam.

[0089] The NZP-CSI-RS additional power offset value information refers to the additional offset value information of the beam power offset value relative to the reference power offset value. Specifically, the NZP-CSI-RS additional power offset value information can be the additional offset value of the beam power offset value relative to the reference power offset value, or the indication information corresponding to the additional offset value of the beam power offset value relative to the reference power offset value. The embodiments of this application do not specifically limit it.

[0090] Among them, the beam power offset value refers to the power offset value allocated by the base station to the satellite for the target beam. The beam power offset value sent by the base station is a known quantity. The reference power offset value is the power offset value of the EPRE of NZP-CSI-RS relative to the EPRE of SSB. Specifically, the reference power offset value is powerControlOffsetSS. In one example, the NZP-CSI-RS additional power offset value is β, and β = beam power offset value - powerControlOffsetSS.

[0091] The ERPE of NZP-CSI-RS is a reference signal sent by the network device for measuring channel state information. The ERPE of NZP-CSI-RS is a known quantity. The ERPE of SSB refers to the ERPE of SSB sent by the network device, which is used to enable the network device and other terminal devices to communicate normally. The ERPE of SSB is known. Therefore, the network device can directly obtain the power offset value of NZP-CSI-RS relative to SSB. For example, the EPRE of NZP-CSI-RS is P CSI-RS , and the EPRE of SSB is P SS , then powerControlOffsetSS = P CSI-RS -P SS .

[0092] Thus, the network device allocates the NZP-CSI-RS additional power offset value for the target beam, and the terminal device can determine the current power offset value of the target beam based on the NZP-CSI-RS additional power offset value allocated for the target beam. Specifically, the terminal device first determines that the power offset value allocated for the target beam is a fixed value powerControlOffsetSS, and adjusts powerControlOffsetSS through the NZP-CSI-RS additional power offset value to determine that the power offset value of the target beam is powerControlOffsetSS + NZP-CSI-RS additional power offset value. Thus, by dynamically adjusting the power offset value of the target beam, the transmission power allocated by the satellite for the beam can be minimized while improving the communication quality.

[0093] S402: The network device sends the NZP-CSI-RS attachment power offset value information and / or beam indication information of the target beam.

[0094] In one example, the network device may send the NZP-CSI-RS attachment power offset value information of the target beam to the terminal device. Specifically, the network device may send the NZP-CSI-RS attachment power offset value information of the target beam to the terminal device through a second signaling.

[0095] Wherein, the second signaling carries an NZP-CSI-RS attachment power offset value information filling field, and the base station fills the obtained NZP-CSI-RS attachment power offset value information into the corresponding field and sends the filled second signaling to the terminal.

[0096] Optionally, the second signaling may be an RRC signaling, or a medium access control element (MAC-CE) signaling, or a downlink control information (DCI) signaling. The embodiments of the present application do not specifically limit the form of the second signaling.

[0097] In another example, the network device may send the NZP-CSI-RS attachment power offset value information and the beam indication information of the target beam to the terminal device. Specifically, the network device may send the NZP-CSI-RS attachment power offset value information and the beam indication information of the target beam to the terminal device through a second signaling.

[0098] Exemplary 1: The base station may send the NZP-CSI-RS attachment power offset value information and the beam indication information through an RRC signaling. The RRC signaling includes an NZP-CSI-RS additional power offset value field, a beam identification field, a wave position indication information field, and a beam transmission time field. The base station adds the obtained NZP-CSI-RS additional power offset value to the additional power offset value field, fills the beam identification, the wave position indication information, and the beam transmission time into the corresponding fields, and sends the added RRC signaling to the satellite.

[0099] Exemplary 2: The network device can send the NZP-CSI-RS attachment power offset value information and beam indication information to the satellite through MAC-CE signaling. Specifically, the MAC-CE signaling includes an NZP-CSI-RS additional power offset value field, a beam identification field, a wave position indication information field, and a beam transmission time field. The network device adds the obtained additional power offset value of the NZP-CSI-RS to the additional power offset value field, fills the beam identification, wave position indication information, and beam transmission time into the corresponding fields, and sends the filled MAC-CE signaling to the satellite.

[0100] Exemplary 3: The base station can send the NZP-CSI-RS attachment power offset value information and beam indication information to the terminal device through the satellite via DCI signaling. In the embodiments of the present application, the DCI signaling includes a first DCI signaling and a second DCI signaling. The first DCI signaling is also called a group DCI signaling and includes the NZP-CSI-RS additional power offset value information carried by one or more beams.

[0101] When the first DCI signaling carries an NZP-CSI-RS attachment power offset value information and beam indication information, the NZP-CSI-RS attachment power offset value and beam indication information of the beam can be directly filled into the corresponding fields, and the filled DCI signaling is sent to the satellite.

[0102] When the first DCI carries the NZP-CSI-RS attachment power offset value information and beam indication information of multiple beams, the NZP-CSI-RS attachment power offset values and beam indication information of the multiple beams can be combined in a preset manner first, the combined information is filled into the corresponding fields of the DCI signaling, and the filled DCI signaling is sent to the satellite.

[0103] The preset manner can be to arrange the NZP-CSI-RS attachment power offset value and beam indication information according to the preset rule of the beam identification value, such as in ascending order. The information of multiple beams is combined as {NZP-CSI-RS attachment power offset value 1, NZP-CSI-RS attachment power offset value 2,...}, and {NZP-CSI-RS attachment power offset value 1, NZP-CSI-RS attachment power offset value 2,...} is filled into the corresponding fields of the DCI signaling, and the filled DCI signaling is sent to the satellite.

[0104] The preset manner can also be {beam indication information 1, NZP-CSI-RS attachment power offset value 1, beam indication information 2, NZP-CSI-RS attachment power offset value 2,...}, where the odd positions are beam indication information, and the odd + 1 positions are the NZP-CSI-RS attachment power offset values corresponding to the beam indication information.

[0105] The embodiments of the present application do not specifically limit the preset manner.

[0106] The second DCI signaling is UE specific DCI signaling, which is used to indicate the additional power offset value of the NZP-CSI-RS carried by the current beam and the beam indication information.

[0107] In the embodiments of the present application, different DCIs use different Radio Network Temporary Identifiers (RNTIs). An RNTI is a 32-bit binary number, and different RNTIs can use different 32-bit binary numbers. Exemplarily, group DCI uses group RNTI, and UE specific DCI uses UE specific RNTI.

[0108] The following combines Figure 6 to illustrate the sending manner based on DCI signaling. Figure 6 FIG. is a flowchart of a method for transmitting information using DCI signaling provided by an embodiment of the present application. The execution entity is a network device. Figure 6 The method shown includes:

[0109] S4021: The network device obtains an RNTI.

[0110] S4022: Determine whether the RNTI is a group RNTI. If so, execute S4023; otherwise, execute S4024.

[0111] S4023: Use the group DCI signaling method to send the additional power offset value information of the NZP-CSI-RS of multiple beams and / or the beam indication information to the terminal device.

[0112] S4024: Use UE specific DCI to send the additional power offset value information of the NZP-CSI-RS of the current beam and / or the beam indication information to the terminal device.

[0113] In addition, the embodiments of the present application can also send the additional power offset value information of the NZP-CSI-RS to the terminal device through other signaling. The embodiments of the present application do not specifically limit.

[0114] S403: The terminal device determines the transmission power of the NZP-CSI-RS of the target beam according to the additional power offset value information of the NZP-CSI-RS.

[0115] After receiving the NZP-CSI-RS additional power offset value information, the terminal device determines the NZP-CSI-RS transmission power of the target beam according to the NZP-CSI-RS additional power offset value information. Among them, the NZP-CSI-RS transmission power of the target beam is used to ensure that the SSB signal can be correctly received and processed by the terminal device.

[0116] In a possible implementation, after receiving the NZP-CSI-RS additional power offset value information, the terminal device obtains the NZP-CSI-RS additional power offset value β corresponding to the NZP-CSI-RS additional power offset value information, and uses β + powerControlOffsetSS to obtain the NZP-CSI-RS transmission power of the target beam. At this time, by dynamically adjusting the NZP-CSI-RS transmission power of the target beam, the communication performance of the communication system is improved.

[0117] In another possible implementation, after receiving the NZP-CSI-RS additional power offset value information and the beam indication information, the terminal device first determines the target beam, and then adjusts the NZP-CSI-RS transmission power of the target beam by using the NZP-CSI-RS additional power offset value β corresponding to the NZP-CSI-RS additional power offset value information.

[0118] In an example, if the satellite receives the NZP-CSI-RS additional power offset value information according to the second signaling, it parses the second signaling, and reads the NZP-CSI-RS additional power offset value information from the fields filled with the NZP-CSI-RS additional power offset value and the beam indication information in the second signaling. Then, the target beam is obtained according to the beam indication information of the target beam in the NZP-CSI-RS additional power offset value information, and the power offset value allocated by the satellite for the target beam is adjusted according to the NZP-CSI-RS additional power offset value.

[0119] Exemplarily, if the signaling is an RRC signaling or a MAC-CE signaling. Parse the signaling, and match the target beam corresponding to the signaling from the beams 1, 2, 3, and 4 transmitted by the satellite, assumed to be beam 1. Then, the satellite uses the NZP-CSI-RS additional power offset value β corresponding to the signaling to adjust the power offset value powerControlOffsetSS allocated by the satellite for the beam. The specific adjustment method can be β + powerControlOffsetSS.

[0120] Exemplarily, if the signaling is DCI signaling, first determine whether the DCI signaling carries a group RNTI. If it carries a group RNTI, it means that the DCI signaling is the first DCI signaling, and then parse the DCI signaling to obtain multiple NZP-CSI-RS additional power offset value information based on a preset combination. For example, according to the preset rule of the beam identification value, such as arranging in ascending order, the NZP-CSI-RS additional power offset value information of multiple beams is combined to obtain {NZP-CSI-RS additional power offset value information 1, NZP-CSI-RS additional power offset value information 2,...}, or {beam indication information 1, NZP-CSI-RS additional power offset value information 1, beam indication information 2, NZP-CSI-RS additional power offset value information 2,...}, where the odd-numbered bits are beam indication information and the (odd + 1)-th bits are the NZP-CSI-RS additional power offset value information corresponding to the beam indication information.

[0121] If the multiple NZP-CSI-RS additional power offset value information is the information combined according to the preset rule of the beam identification value, send this information to the terminal device, and the terminal device can adjust the power offset value of the corresponding beam according to the NZP-CSI-RS additional power offset value information of each beam. If the multiple NZP-CSI-RS additional power offset value information is combined in such a way that the odd-numbered bits are beam indication information and the (odd + 1)-th bits are the NZP-CSI-RS additional power offset value information corresponding to the beam indication information, first obtain the corresponding beam according to the beam indication information, then obtain the NZP-CSI-RS additional power offset value information of the corresponding beam, and finally use the NZP-CSI-RS additional power offset value in the NZP-CSI-RS additional power offset value information to adjust the power offset value of the corresponding beam.

[0122] If the DCI signaling is the second DCI signaling, directly parse the DCI signaling, and determine the NZP-CSI-RS transmission power of the target beam according to the NZP-CSI-RS additional power offset value information obtained after parsing.

[0123] Furthermore, the terminal device measures the reference signal received power (RSRP), reference signal received quality (RSRQ), and path loss based on the NZP-CSI-RS.

[0124] The embodiments of the present application also provide various implementation manners for sending the power offset value information of the target beam and the NZP-CSI-RS additional power offset value information.

[0125] In one example, such asFigure 7 This is an interaction diagram of a method for a base station to send beam power indication information provided by an embodiment of the present application. In this method, the network device simultaneously sends power offset value information and NZP-CSI-RS additional power offset value information to the terminal device through the same signaling. The method includes:

[0126] S601: The network device obtains the power offset value information and NZP-CSI-RS additional power offset value information of the target beam.

[0127] S602: The network device fills the beam indication information, power offset value information, and NZP-CSI-RS additional power offset value information of the target beam into the same signaling.

[0128] Exemplarily, the base station fills the beam indication information of the target beam into the corresponding field of the signaling, fills the power offset value information into the first power offset value information field of the signaling, fills the attachment power offset value information into the NZP-CSI-RS additional power offset value information field of the signaling, and sends the filled signaling to the satellite.

[0129] The present application does not specifically limit the signaling. For example, it can be an RRC signaling.

[0130] S603: The network device sends the filled signaling to the terminal device.

[0131] S604: The terminal device parses the filled signaling to determine the EPRE and NZP-CSI-RS transmission power allocated to the target beam.

[0132] Specifically, after parsing the signaling, the terminal device obtains the beam indication information, as well as the power offset value information and NZP-CSI-RS additional power offset value information corresponding to the beam indication information. The terminal device uses the power offset value information and NZP-CSI-RS additional power offset value information to determine the EPRE and NZP-CSI-RS transmission power allocated by the satellite for the target beam.

[0133] That is, the EPRE of the target beam is ss-PBCH-BlockPower + α, and the NZP-CSI-RS transmission power of the target beam is powerControlOffsetSS + NZP-CSI-RS additional power offset value.

[0134] In another example, in this method, the power offset value information and the attachment power offset value information are sent through different signaling. For example, the power offset value information is sent through RRC signaling, and the attachment power offset value information is sent through DCI signaling. Another example is that the power offset value information is sent through SIB signaling, and the attachment power offset value information is sent through RRC signaling, etc. The embodiments of the present application do not specifically limit.

[0135] Figure 8 This is an example of the composition of a communication device provided by an embodiment of this application. The communication device may be a terminal device, including but not limited to electronic devices such as mobile phones and smart wearable devices (such as smart watches). Taking a mobile phone as an example, the communication device may include a processor 310, an external memory interface 320, an internal memory 321, a display screen 330, a camera 340, antenna 1, antenna 2, a mobile communication module 350, a wireless communication module 360, etc.

[0136] It can be understood that the structure illustrated in this embodiment does not constitute a specific limitation on the communication device. In other embodiments, the communication device may include more or fewer components than shown, or combine certain components, or split certain components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0137] The processor 310 may include one or more processing units. For example, the processor 310 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Among them, different processing units may be independent devices or integrated in one or more processors.

[0138] It can be understood that the interface connection relationship between the modules illustrated in this embodiment is only illustrative and does not constitute a structural limitation on the electronic device. In other embodiments of this application, the electronic device may also adopt different interface connection methods or a combination of multiple interface connection methods as described in the above embodiments.

[0139] The external memory interface 320 may be used to connect to an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device. The external memory card communicates with the processor 310 through the external memory interface 320 to implement the data storage function. For example, files such as music and videos are saved in the external memory card.

[0140] The internal memory 321 can be used to store computer-executable program codes, and the executable program codes include instructions. The processor 310 executes various functional applications and data processing of the electronic device by running the instructions stored in the internal memory 321. The internal memory 321 can include a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.). The data storage area can store data created during the use of the electronic device (such as audio data, a phone book, etc.). In addition, the internal memory 321 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc. The processor 310 executes various functional applications and data processing of the electronic device by running the instructions stored in the internal memory 321, and / or the instructions stored in the memory provided in the processor.

[0141] The wireless communication function of the electronic device can be implemented by the antenna 1, the antenna 2, the mobile communication module 350, the wireless communication module 360, the modulation and demodulation processor, and the baseband processor, etc.

[0142] The antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the electronic device can be used to cover a single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization rate of the antennas. For example: the antenna 1 can be multiplexed as a diversity antenna for a wireless local area network. In some other embodiments, the antenna can be used in combination with a tuning switch.

[0143] The mobile communication module 350 can provide solutions for wireless communications including 2G / 3G / 4G / 5G, etc. applied to the electronic device. The mobile communication module 350 can include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 350 can receive electromagnetic waves through the antenna 1, filter, amplify, etc. the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 350 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves through the antenna 1 and radiate it out. In some embodiments, at least some functional modules of the mobile communication module 350 can be provided in the processor 310. In some embodiments, at least some functional modules of the mobile communication module 350 and at least some modules of the processor 310 can be provided in the same device.

[0144] In some embodiments, the electronic device initiates or receives a call request through the mobile communication module 350 and the antenna 1.

[0145] In addition, an operating system runs on the above components. For example, iOS operating system, Android operating system, Windows operating system, etc. Application programs can be installed and run on the operating system.

[0146] Figure 9 This is a composition example of another communication device provided by an embodiment of the present application. The communication device may be a network device, such as a base station. Figure 9 A simplified schematic diagram of the base station structure is shown. The base station includes a 910 part, a 920 part, and a 930 part. The 910 part is mainly used for baseband processing and controlling the base station, etc.; the 910 part is usually the control center of the base station and can usually be called a processor, which is used to control the base station to execute the processing operations on the network device side in the above method embodiments. The 920 part is mainly used for storing computer program codes and data. The 930 part is mainly used for the transceiver of radio frequency signals and the conversion between radio frequency signals and baseband signals; the 930 part can usually be called a transceiver module, a transceiver, a transceiver circuit, or a transceiver, etc. The transceiver module of the 930 part can also be called a transceiver or a transceiver, etc., and it includes an antenna 933 and a radio frequency circuit (not shown in the figure), where the radio frequency circuit is mainly used for radio frequency processing. Optionally, the devices used to implement the receiving function in the 930 part can be regarded as a receiver, and the devices used to implement the transmitting function can be regarded as a transmitter, that is, the 930 part includes a receiver 932 and a transmitter 931. The receiver can also be called a receiving module, a receiver, or a receiving circuit, etc., and the transmitter can be called a transmitting module, a transmitter, or a transmitting circuit, etc.

[0147] The 910 part and the 920 part may include one or more single boards, and each single board may include one or more processors and one or more memories. The processor is used to read and execute the programs in the memory to implement the baseband processing function and the control of the base station. If there are multiple single boards, the single boards can be interconnected to enhance the processing ability. As an optional implementation manner, it may also be that multiple single boards share one or more processors, or multiple single boards share one or more memories, or multiple single boards share one or more processors at the same time.

[0148] For example, in one implementation, the transceiver module of the 930 part is used to execute Figure 4 the transceiver-related processes executed by the base station in the shown embodiment. The processor of the 910 part is used to execute Figure 4 the processing-related processes executed by the base station in the shown embodiment.

[0149] It should be understood that Figure 9 only for example and not limitation, the above network device including a processor, a memory, and a transceiver may not depend on Figure 9 the shown structure.

[0150] Those skilled in the art can clearly understand that for the sake of convenience and conciseness of description, the explanations and beneficial effects of the relevant content in any of the above-mentioned communication devices can be referred to the corresponding method embodiments provided above, and will not be elaborated here.

[0151] In this application, the terminal device or network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. Among them, the hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system in the operating system layer may be any one or more computer operating systems that implement service processing through processes. For example, the Linux operating system, the Unix operating system, the Android operating system, the iOS operating system, or the Windows operating system, etc. The application layer may include applications such as a browser, an address book, a word processing software, and an instant messaging software.

[0152] Those skilled in the art can clearly understand that for the sake of convenience and conciseness of description, the specific working processes of the systems, devices, and modules described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be elaborated here.

[0153] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical, mechanical, or other forms.

[0154] The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or may be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0155] In addition, the functional modules in the various embodiments of the present application may be integrated into one processing module, or each module may exist physically alone, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0156] If the above-mentioned integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on such an understanding, the part that essentially contributes to the technical solution of the present application, or all or part of the technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the processes of the methods described in the various embodiments of the present application. The foregoing storage medium includes: various media that can store program codes such as USB flash drives, mobile hard disks, read-only memories, random access memories, magnetic disks, or optical discs.

[0157] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application.

Claims

1. A downlink power allocation method, characterized in that, Applied to a network device, the method includes: Determine power offset value information of a target beam, where the power offset value information of the target beam is the offset value information between the energy per resource element (EPRE) value transmitted by the target beam and the EPRE value of a reference signal, and the EPRE value of the target beam represents the EPRE value allocated by the network device for the target beam; Transmit the power offset value information and / or beam indication information of the target beam, so that the terminal device determines the EPRE value of the target beam according to the received power offset value information and / or beam indication information of the target beam.

2. The method according to claim 1, wherein Transmit the power offset value information and / or beam indication information of the target beam through a first signaling.

3. The method according to claim 2, wherein The first signaling is a system information block (SIB) signaling or a radio resource control (RRC) signaling. The SIB signaling includes the power offset value information and / or beam indication information of the target beam, and the RRC signaling includes the power offset value information and / or beam indication information of the target beam.

4. The method according to any one of claims 1 to 3, characterized in that, The method further includes: Transmit the non-zero power channel state information reference signal (NZP-CSI-RS) additional power offset value information and / or the beam indication information of the target beam, so that the terminal device determines the transmission power of the NZP-CSI-RS of the target beam; The NZP-CSI-RS additional power offset value information is the additional offset value information of the beam power offset value relative to the reference power offset value, and the reference power offset value is the offset value powerControlOffsetSS of the EPRE of the NZP-CSI-RS relative to the EPRE of the synchronization signal block (SSB).

5. The method according to claim 4, characterized in that, The transmitting the non-zero power channel state information reference signal (NZP-CSI-RS) additional power offset value information and / or the beam indication information of the target beam includes: Transmit the NZP-CSI-RS additional power offset value information and / or beam indication information of the target beam through a second signaling; the second signaling includes the NZP-CSI-RS additional power offset value information and / or beam indication information of the target beam.

6. The method according to claim 5, characterized in that, When the second signaling is a downlink control signal (DCI) signaling, the method further includes: When the DCI signaling is a first DCI signaling, transmit the NZP-CSI-RS additional power offset value information and / or beam indication information of N beams through the first DCI signaling; the N beams include the target beam, N is a positive integer, and the first DCI signaling includes the NZP-CSI-RS additional power offset value information and / or beam indication information of the N beams.

7. The method according to any one of claims 1-6, characterized in that, The beam indication information includes one or more of the following: beam identifier, resource identifier of the reference signal corresponding to the beam, beam position indication information, and beam transmission time information.

8. A downlink power allocation method, characterized in that, Applied to a terminal device, the method includes: Receive the power offset value information and / or beam indication information of the target beam sent by the network device; the power offset value information of the target beam is the offset value information between the energy per resource element (EPRE) value of the target beam and the EPRE value of the reference signal, and the EPRE value of the target beam represents the EPRE value allocated by the network device for the target beam. Determine the EPRE value of the target beam according to the power offset value information and / or beam indication information of the target beam.

9. The method according to claim 8, wherein Receive the power offset value information and / or beam indication information of the target beam sent by the network device through the first signaling.

10. The method according to claim 9, wherein The first signaling is the SIB signaling or the RRC signaling. The SIB signaling includes the power offset value information and / or beam indication information of the target beam, and the RRC signaling includes the power offset value information and / or beam indication information of the target beam.

11. According to the method described in any one of claims 8 - 10, characterized in that, The method further includes: Receive the additional power offset value information of the NZP-CSI-RS of the target beam and / or the beam indication information sent by the network device; the additional power offset value information of the NZP-CSI-RS is the additional offset value of the beam power offset value relative to the reference power offset value, and the reference power offset value is the offset value powerControlOffsetSS of the EPRE of the NZP-CSI-RS relative to the EPRE of the SSB. Determine the transmission power of the NZP-CSI-RS of the target beam according to the additional power offset value information of the NZP-CSI-RS of the target beam and / or the beam indication information.

12. The method according to claim 11, wherein The receiving the additional power offset value information of the NZP-CSI-RS of the target beam and / or the beam indication information sent by the network device includes: Receive the additional power offset value information of the NZP-CSI-RS of the target beam and / or the beam indication information sent by the network device through the second signaling; the second signaling includes the additional power offset value information of the NZP-CSI-RS of the target beam and / or the beam indication information.

13. The method according to claim 12, wherein When the second signaling is the downlink control signal DCI signaling, the method further includes: When the DCI signaling is the first DCI signaling, receive the additional power offset value information of the NZP-CSI-RS of N beams and / or the beam indication information sent by the network device through the first DCI signaling; the N beams include the target beam, N is a positive integer, and the first DCI signaling includes the additional power offset value information of the NZP-CSI-RS of the N beams and / or the beam indication information.

14. According to the method described in any one of claims 8 - 13, wherein The beam indication information includes one or more of the following: beam identifier, resource identifier of the reference signal corresponding to the beam, beam position indication information, and beam transmission time information.

15. A communication device, characterized in that, The communication device includes: A memory for storing computer instructions; A processor for executing the computer program or computer instructions stored in the memory, so that the communication device executes the method according to any one of claims 1 to 14.

16. A computer storage medium for storing a computer program, which when executed is used to implement the communication method according to any one of claims 1 to 14.

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