Communication method and communication device

Abstract

The invention provides a communication method and a communication device. The method comprises the following steps: receiving a configuration message related to reporting of a power back-off amount; first report information is sent, the first report information comprises at least one first resource and at least one second resource, and the first report information is used for indicating the power backoff amount of each first resource in the at least one first resource, the power back-off amount of the first resource is the power back-off amount adopted when a beam corresponding to the first resource is transmitted independently, and / or the power back-off amount adopted when the beam corresponding to the first resource and a beam corresponding to a second resource are transmitted at the same time. The terminal device can report the power back-off amount of each beam to the network device when the plurality of beams carry out multi-beam transmission at the same time.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular, to a communication method and a communication device. Background Art

[0002] When the transmission signal strength of the terminal is too high, it will generate excessive electromagnetic radiation to the user, even exceeding the maximum electromagnetic radiation allowed by the regulations. In this case, the terminal device needs to reduce its transmission power, that is, perform power backoff to reduce electromagnetic radiation to the human body.

[0003] In order to meet the maximum permissible exposure (MPE) regulatory requirements, after the terminal device performs power backoff, it needs to report the power backoff amount to the network device. Different beams have different power backoff amounts. Some beams need to be backed off, some do not. Some beams have a larger backoff amount, and some beams have a smaller backoff amount.

[0004] In the above method, the power backoff amount of different beams is the MPE power backoff amount of each beam when performing single-beam transmission. However, when there are multiple beams performing multi-beam transmission at the same time, the energy of multiple beams may be superimposed in a certain direction, causing the radiation to the human body in that direction to exceed the radiation during single-beam transmission. In other words, the MPE power backoff amount corresponding to a beam transmitted alone is different from the MPE power backoff amount when the beam is transmitted simultaneously with another beam.

[0005] How the terminal device determines the power backoff amount of each beam when multiple beams are simultaneously transmitting multi-beams and reports it to the network device is an urgent problem to be solved. Summary of the invention

[0006] The present application provides a communication method and a communication device, and a terminal device can report the power backoff amount of each beam when multiple beams are simultaneously performing multi-beam transmission to a network device.

[0007] In a first aspect, a communication method is provided, which can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, without limitation. For ease of description, the following description is based on an example of execution by a terminal device.

[0008] The method may include: receiving a configuration message related to power backoff reporting; sending first reporting information, the first reporting information including at least one first resource and at least one second resource, the first reporting information being used to indicate the power backoff amount of each first resource in the at least one first resource, the power backoff amount of the first resource being the power backoff amount used when the beam corresponding to the first resource is transmitted alone, and / or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0009] Based on the above technical solution, the terminal device sends reporting information to the network device, thereby reporting the power backoff amount of each beam when multiple beams perform multi-beam transmission simultaneously to the network device.

[0010] In one possible implementation, the first reporting information also includes at least one of the following information: the number of first resources; the number of second resources; at least one power backoff amount, wherein each power backoff amount is a power backoff amount adopted by a beam corresponding to a first resource; the number of power backoff amounts; at least one power backoff amount group, wherein each power backoff amount group includes multiple power backoff amounts; the number of power backoff amount groups.

[0011] In one possible implementation, multiple power backoff amounts in the power backoff amount group correspond to multiple third resources, wherein each third resource corresponds to a power backoff amount, and the multiple third resources correspond to multiple beams, and the power backoff amount corresponding to the third resources is: when multiple beams are transmitted simultaneously, the power backoff amount adopted by the beam corresponding to the third resource.

[0012] In a possible implementation manner, the first reporting information further includes: first information used to indicate whether the first reporting information includes a power backoff amount group.

[0013] In a possible implementation manner, the first reporting information further includes: second information, used to indicate whether the first reporting information includes a power backoff amount or a power backoff amount group.

[0014] In a possible implementation, the first reporting information also includes third information, and the third information is used to indicate: each power backoff amount of at least one power backoff amount is the power backoff amount used by a beam corresponding to a first resource when the beam corresponding to a first resource is transmitted alone, or the power backoff amount used by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0015] In one possible implementation, the first reporting information also includes at least one fourth information, wherein each fourth information corresponds to a power backoff amount, and the fourth information is used to indicate: the power backoff amount corresponding to the fourth information is the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource is transmitted alone, or the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0016] In a second aspect, a communication method is provided, which can be executed by a network device, or can also be executed by a component (such as a chip or circuit) of the network device, without limitation. For ease of description, the following description is based on an example of execution by a network device.

[0017] The method may include: sending a configuration message related to reporting power backoff; receiving first reporting information, the first reporting information including at least one first resource and at least one second resource, the first reporting information being used to indicate the power backoff amount of each first resource in the at least one first resource, the power backoff amount of the first resource being the power backoff amount used when the beam corresponding to the first resource is transmitted alone, and / or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0018] Based on the above technical solution, the terminal device sends reporting information to the network device, thereby reporting the power backoff amount of each beam when multiple beams perform multi-beam transmission simultaneously to the network device.

[0019] In one possible implementation, the first reporting information also includes at least one of the following information: the number of first resources; the number of second resources; at least one power backoff amount, wherein each power backoff amount is a power backoff amount adopted by a beam corresponding to a first resource; the number of power backoff amounts; at least one power backoff amount group, wherein each power backoff amount group includes multiple power backoff amounts; the number of power backoff amount groups.

[0020] In one possible implementation, multiple power backoff amounts in the power backoff amount group correspond to multiple third resources, wherein each third resource corresponds to a power backoff amount, and the multiple third resources correspond to multiple beams, and the power backoff amount corresponding to the third resources is: when multiple beams are transmitted simultaneously, the power backoff amount adopted by the beam corresponding to the third resource.

[0021] In a possible implementation manner, the first reporting information further includes: first information used to indicate whether the first reporting information includes a power backoff amount group.

[0022] In a possible implementation manner, the first reporting information further includes: second information, used to indicate whether the first reporting information includes a power backoff amount or a power backoff amount group.

[0023] In a possible implementation, the first reporting information also includes third information, and the third information is used to indicate: each power backoff amount of at least one power backoff amount is the power backoff amount used by a beam corresponding to a first resource when the beam corresponding to a first resource is transmitted alone, or the power backoff amount used by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0024] In one possible implementation, the first reporting information also includes at least one fourth information, wherein each fourth information corresponds to a power backoff amount, and the fourth information is used to indicate: the power backoff amount corresponding to the fourth information is the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource is transmitted alone, or the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0025] According to a third aspect, a communication device is provided, including: a receiving unit, used to receive a configuration message related to power backoff reporting; a sending unit, used to send first reporting information, the first reporting information including at least one first resource and at least one second resource, the first reporting information being used to indicate the power backoff amount of each first resource in the at least one first resource, the power backoff amount of the first resource being the power backoff amount used when the beam corresponding to the first resource is transmitted alone, and / or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0026] In one possible implementation, the first reporting information also includes at least one of the following information: the number of first resources; the number of second resources; at least one power backoff amount, wherein each power backoff amount is a power backoff amount adopted by a beam corresponding to a first resource; the number of power backoff amounts; at least one power backoff amount group, wherein each power backoff amount group includes multiple power backoff amounts; the number of power backoff amount groups.

[0027] In one possible implementation, multiple power backoff amounts in the power backoff amount group correspond to multiple third resources, wherein each third resource corresponds to a power backoff amount, and the multiple third resources correspond to multiple beams, and the power backoff amount corresponding to the third resources is: when multiple beams are transmitted simultaneously, the power backoff amount adopted by the beam corresponding to the third resource.

[0028] In a possible implementation manner, the first reporting information further includes: first information used to indicate whether the first reporting information includes a power backoff amount group.

[0029] In a possible implementation manner, the first reporting information further includes: second information, used to indicate whether the first reporting information includes a power backoff amount or a power backoff amount group.

[0030] In a possible implementation, the first reporting information also includes third information, and the third information is used to indicate: each power backoff amount of at least one power backoff amount is the power backoff amount used by a beam corresponding to a first resource when the beam corresponding to a first resource is transmitted alone, or the power backoff amount used by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0031] In one possible implementation, the first reporting information also includes at least one fourth information, wherein each fourth information corresponds to a power backoff amount, and the fourth information is used to indicate: the power backoff amount corresponding to the fourth information is the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource is transmitted alone, or the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0032] In a fourth aspect, a communication device is provided, including: a sending unit, used to send a configuration message related to power backoff reporting; a receiving unit, used to receive first reporting information, the first reporting information including at least one first resource and at least one second resource, the first reporting information being used to indicate the power backoff amount of each first resource in the at least one first resource, the power backoff amount of the first resource being the power backoff amount used when the beam corresponding to the first resource is transmitted alone, and / or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0033] In one possible implementation, the first reporting information also includes at least one of the following information: the number of first resources; the number of second resources; at least one power backoff amount, wherein each power backoff amount is a power backoff amount adopted by a beam corresponding to a first resource; the number of power backoff amounts; at least one power backoff amount group, wherein each power backoff amount group includes multiple power backoff amounts; the number of power backoff amount groups.

[0034] In one possible implementation, multiple power backoff amounts in the power backoff amount group correspond to multiple third resources, wherein each third resource corresponds to a power backoff amount, and the multiple third resources correspond to multiple beams, and the power backoff amount corresponding to the third resources is: when multiple beams are transmitted simultaneously, the power backoff amount adopted by the beam corresponding to the third resource.

[0035] In a possible implementation manner, the first reporting information further includes: first information used to indicate whether the first reporting information includes a power backoff amount group.

[0036] In a possible implementation manner, the first reporting information further includes: second information, used to indicate whether the first reporting information includes a power backoff amount or a power backoff amount group.

[0037] In a possible implementation, the first reporting information also includes third information, and the third information is used to indicate: each power backoff amount of at least one power backoff amount is the power backoff amount used by a beam corresponding to a first resource when the beam corresponding to a first resource is transmitted alone, or the power backoff amount used by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0038] In one possible implementation, the first reporting information also includes at least one fourth information, wherein each fourth information corresponds to a power backoff amount, and the fourth information is used to indicate: the power backoff amount corresponding to the fourth information is the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource is transmitted alone, or the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0039] In a fifth aspect, a wireless communication device is provided, comprising modules or units for executing the method in the first aspect or any possible implementation manner of the first aspect.

[0040] In a sixth aspect, a wireless communication device is provided, comprising modules or units for executing the method in the second aspect or any possible implementation manner of the second aspect.

[0041] In a seventh aspect, a communication device is provided, including a processor, the processor is coupled to a memory, and can be used to perform any of the first aspect or the second aspect, and the method in any possible implementation of the above aspects. In a possible implementation, the communication device also includes a memory. In a possible implementation, the communication device also includes a communication interface, the processor is coupled to the communication interface. In a possible implementation, the communication device also includes a communication interface, the processor is coupled to the communication interface.

[0042] In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input / output interface. In one possible implementation, the transceiver may be a transceiver circuit. In one possible implementation, the input / output interface may be an input / output circuit.

[0043] In another implementation, the communication device is a network device. When the communication device is a network device, the communication interface may be a transceiver, or an input / output interface. In a possible implementation, the transceiver may be a transceiver circuit. In a possible implementation, the input / output interface may be an input / output circuit.

[0044] In another implementation, the communication device is a chip or a chip system. When the communication device is a chip or a chip system, the communication interface may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system. The processor may also be embodied as a processing circuit or a logic circuit.

[0045] In an eighth aspect, a communication device is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is used to receive a signal through the input circuit and transmit a signal through the output circuit, so that any aspect of the first aspect or the second aspect, and any possible implementation of the above aspects are implemented.

[0046] In the specific implementation process, the above-mentioned communication device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a trigger, and various logic circuits. The input signal received by the input circuit can be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to a transmitter and transmitted by the transmitter, and the input circuit and the output circuit can be different circuits or the same circuit. In this case, the circuit is used as an input circuit and an output circuit at different times. The embodiment of the present application does not limit the specific implementation method of the processor and various circuits.

[0047] In a ninth aspect, a processing device is provided, comprising a processor and a memory. The processor is used to read instructions stored in the memory, and can receive signals through a receiver and transmit signals through a transmitter to execute any of the first aspect or the second aspect, and any possible implementation of the above aspects.

[0048] In a possible implementation, there are one or more processors and one or more memories.

[0049] In a possible implementation, the memory may be integrated with the processor, or the memory may be separately provided with the processor.

[0050] In the specific implementation process, the memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated with the processor on the same chip or can be set on different chips respectively. The embodiments of the present application do not limit the type of memory and the setting method of the memory and the processor.

[0051] It should be understood that the relevant data interaction process, such as sending indication information, can be a process of outputting indication information from a processor, and receiving capability information can be a process of receiving input capability information from a processor. Specifically, the processed output data can be output to a transmitter, and the input data received by the processor can come from a receiver. Among them, the transmitter and the receiver can be collectively referred to as a transceiver.

[0052] The processor in the above aspects can be a chip, which can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading software codes stored in a memory. The memory can be integrated in the processor or can be located outside the processor and exist independently.

[0053] In the tenth aspect, a computer program product is provided, which includes: a computer program (also referred to as code, or instruction), which, when executed, enables a computer to execute any aspect of the first aspect or the second aspect, as well as a method in any possible implementation of the above aspects.

[0054] In the eleventh aspect, a computer-readable medium is provided, which stores a computer program (also referred to as code, or instructions). When the computer-readable medium is run on a computer, the computer executes any one of the first aspect or the second aspect, as well as any possible implementation of the above aspects.

[0055] In the twelfth aspect, a chip system is provided, including a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a communication device equipped with the chip system executes any aspect of the above-mentioned first aspect or second aspect and the methods in possible implementation methods thereof.

[0056] Among them, the chip system may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

[0057] In a thirteenth aspect, a communication system is provided, comprising at least one of the aforementioned terminal devices and network devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 This is a schematic diagram of an example of a communication system to which the present application is applicable.

[0059] Figure 2 It is a schematic diagram of a communication method provided in an embodiment of the present application.

[0060] Figure 3 It is a schematic diagram of a communication method provided in an embodiment of the present application.

[0061] Figure 4 It is a schematic flow chart of a communication method provided in an embodiment of the present application.

[0062] Figure 5 This is a schematic diagram of reporting information provided in an embodiment of the present application.

[0063] Figure 6 A schematic block diagram of a communication device provided in an embodiment of the present application.

[0064] Figure 7 A schematic block diagram of another communication device provided in an embodiment of the present application.

[0065] Figure 8 A schematic block diagram of a terminal device provided in an embodiment of the present application.

[0066] Fig. 9 A schematic block diagram of a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0067] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0068] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Wireless Fidelity (WIFI), Device to Device (D2D) communication system, Vehicle-to-Everything (V2X) communication system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Machine to Machine (M2M) system, Machine Type Communication (MTC) system, Internet of Things (IoT) system. things, IoT) communication system, non-terrestrial network (NTN) system, the 5th Generation (5G) system, the 6th generation (6G) system or new wireless (NR) system or future wireless communication system.

[0069] First combine Figure 1 A communication system applicable to an embodiment of the present application is briefly introduced as follows.

[0070] like Figure 1 As shown, the communication system may include at least one network device, such as Figure 1 The communication system may also include at least one terminal device, such as Figure 1The terminal device shown. The network device and the terminal device can communicate via a wireless link. In the communication system, the network device and the terminal device can use air interface resources for wireless communication, and the air interface resources may include at least one of time domain resources, frequency domain resources, code resources and space resources.

[0071] It should be understood that Figure 1 This is a simplified schematic diagram for ease of understanding only. The communication system may also include other network devices or other terminal devices. Figure 1 Not drawn in.

[0072] The terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future Public Land Mobile Network (PLMN), etc., and the embodiments of the present application are not limited to this.

[0073] Among them, wearable devices can also be called wearable smart devices, which are a general term for the intelligent design and development of wearable devices for daily wear using wearable technology, such as glasses, gloves, watches, clothing and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also realize powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0074] In addition, the terminal device can also be a terminal device in the Internet of Things (IoT) system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network that interconnects people and machines and things.

[0075] It should be understood that the present application does not limit the specific form of the terminal device.

[0076] The network device in the embodiment of the present application may also be a device for communicating with a terminal device. The network device may be a base station (Base Transceiver Station, BTS) in a Global System of Mobile communication (GSM) system or a Code Division Multiple Access (CDMA), or a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station (Evolved NodeB, eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the communication device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a communication device in a 5G network, or a communication device in a future evolved PLMN network, etc., and the embodiments of the present application are not limited.

[0077] It should be understood that the network device in the wireless communication system can be any device with wireless transceiver function. The device includes, but is not limited to: an evolved Node B (eNB), a radio network controller (RNC), a road side unit (RSU), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved node B, or home node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It can also be a gNB or a transmission point (TRP or TP) in a 5G (such as NR) system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DBU). The network device can also be a network-side device that provides communication services or communication control for terminal devices in the Internet of Vehicles.

[0078] The network device provides communication services for the terminal devices in the cell. The terminal devices in the cell communicate with the network device through the transmission resources allocated by the network device (for example, frequency domain resources, time domain resources, etc.). The cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.).

[0079] To facilitate understanding of the embodiments of the present application, the terms involved in the present application are first briefly explained.

[0080] 1. Beam

[0081] The embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter, or a spatial domain parameter, a spatial parameter, a spatial domain setting, a spatial setting, or QCL (quasi-colocation) information, QCL assumption, QCL indication, etc. The beam can be indicated by a transmission configuration indication state (TCI-state) parameter, or by a spatial relation parameter. Therefore, in this application, the beam can be replaced by a spatial domain filter, a spatial filter, a spatial domain parameter, a spatial parameter, a spatial setting, a spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (DL TCI-state, UL TCI-state), spatial relationship, etc. The above terms are also equivalent to each other. The beam can also be replaced by other terms representing the beam, which is not limited in this application.

[0082] A beam used to transmit a signal may be referred to as a transmission beam (Tx beam), and may also be referred to as a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, or a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. A downlink transmission beam may be indicated by a TCI-state.

[0083] The beam used to receive the signal may be referred to as a reception beam (Rx beam), and may also be referred to as a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, or a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting. The uplink transmit beam may be indicated by a spatial relation, or an uplink TCI-state, or an SRS resource (indicating a transmit beam using the SRS). Therefore, the uplink beam may also be replaced by an SRS resource.

[0084] The transmit beam may refer to the distribution of signal strength in different directions of space after the signal is transmitted by the antenna, and the receive beam may refer to the distribution of signal strength in different directions of space of the wireless signal received from the antenna.

[0085] In addition, the beam may be a wide beam, a narrow beam, or other types of beams. The technology for forming the beam may be a beamforming technology or other technologies. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital / analog beamforming technology.

[0086] Beams generally correspond to resources. For example, when performing beam measurement, the network device measures different beams through different resources. The terminal device feeds back the measured resource quality, and the network device knows the quality of the corresponding beam. During data transmission, beam information is also indicated through its corresponding resources. For example, the network device indicates the terminal device's physical downlink shared channel (PDSCH) beam information through the transmission configuration indicator (TCI) resource in the downlink control information (DCI).

[0087] Optionally, multiple beams with the same or similar communication characteristics are regarded as one beam. One beam may include one or more antenna ports for transmitting data channels, control channels, and sounding signals. One or more antenna ports forming a beam may also be regarded as an antenna port set.

[0088] In the embodiments of the present application, unless otherwise specified, a beam refers to a transmission beam. In beam measurement, each beam of a network device corresponds to a resource, so the beam corresponding to the resource can be uniquely identified by the index of the resource.

[0089] 2. Resources

[0090] In beam measurement, the beam corresponding to the resource can be uniquely identified by the resource index.

[0091] The resource may be an uplink signal resource or a downlink signal resource.

[0092] The uplink signal includes, but is not limited to, a sounding reference signal (SRS) and a demodulation reference signal (DMRS).

[0093] Downlink signals include, but are not limited to, channel state information reference signal (CSI-RS), cell specific reference signal (CS-RS), user equipment specific reference signal (US-RS), demodulation reference signal (DMRS) and synchronization signal / physical broadcast channel block (SS / PBCH block). SS / PBCH block can be referred to as synchronization signal block (SSB).

[0094] Resources can be configured through radio resource control (RRC) signaling.

[0095] In the configuration structure, a resource is a data structure, including relevant parameters of the corresponding uplink / downlink signal, such as the type of uplink / downlink signal, the resource element carrying the uplink / downlink signal, the sending time and period of the uplink / downlink signal, the number of ports used to send the uplink / downlink signal, etc.

[0096] Each uplink / downlink signal resource has a unique index to identify the uplink / downlink signal resource. It is understandable that the resource index may also be referred to as the resource identifier, and the present application embodiment does not impose any limitation on this.

[0097] 3. Antenna panel

[0098] The antenna panel can be an antenna panel of a network device or an antenna panel of a terminal device. An antenna panel generally has one or more antenna array elements, which are arranged into an antenna array to perform beamforming to form a simulated beam. The antenna array can generate simulated beams pointing in different directions. That is to say, a simulated beam can be formed on each antenna panel, and beam measurement can be used to determine which simulated beam the antenna panel should use. The terminal device can be equipped with multiple antenna panels, which can be distributed in different positions and facing different directions. This can ensure that no matter which direction the terminal device faces, at least one antenna panel is facing the network device and can transmit data with the network device. The terminal device can turn on all antenna panels at the same time for transmission. Alternatively, in order to reduce the power consumption of the terminal device, the terminal device can also use only a single antenna panel for transmission at a time, and other unused antenna panels can be turned off. Whether the antenna panel of the terminal device is in an open or closed state generally needs to be notified to the network device, that is, the terminal device and the network device generally need to exchange antenna panel status information.

[0099] In the embodiments of the present application, unless otherwise specified, the antenna panel refers to the antenna panel of the terminal device. In the protocol, the antenna panel can be represented by panel, panel index, etc. In addition, the antenna panel can also be implicitly represented by other means, for example, the antenna panel can also be represented by antenna ports (such as CSI-RS ports, SRS ports, DMRS ports, PTRS ports, CRS ports, TRS ports, SSB ports, etc.) or antenna port groups, or by resources (such as CSI-RS resources, SRS resources, DMRS resources, PTRS resources, CRS resources, TRS resources, SSB resources, etc.) or resource groups, or by a certain channel representation (such as PUCCH, PUSCH, PRACH, PDSCH, PDCCH, PBCH, etc.) or channel groups (such as control channel groups), or by a terminal transmission capability parameter group, QCL, TCI-state, spatial relation, or a certain index configured in QCL, TCI-state, spatial relation. In other words, the antenna panel / panel described in the present application can replace the above content.

[0100] 4. Effective Isotropic Radiated Power (EIRP)

[0101] EIRP is the product of the transmitter's transmit power and the antenna gain in a given direction (if both the transmit power and the antenna gain are expressed in dB, it is the sum of the two). The following is explained in dB. EIRP is defined as: EIRP = P + G. P represents the transmit power of the transmitter, and G represents the antenna gain of the transmitting antenna. For example, when an array antenna is used for beamforming, the antenna gain is the beam gain corresponding to the beam. For example, assuming that the transmitter's transmit power is 23dBm, and when a certain beam is used for transmission, the beam gain is 6dB, so the EIRP of the transmitter is 23+6=29dBm. The beam gains in different beam directions may be different, so the EIRPs corresponding to different beam directions may also be different. The beam with the largest beam gain has the largest ERIP, which can be called the peak EIRP. For example, if the maximum beam gain is 9dB, then the peak EIRP of the above transmitter is equal to 23+9=32dBm.

[0102] 5. Maximum permissible exposure (MPE)

[0103] MPE is the maximum amount of electromagnetic radiation that the human body can receive as stipulated by the regulations. When the terminal device is used, the user will be subjected to the electromagnetic radiation of the terminal device, which mainly comes from the terminal's transmission signal. When the transmission signal strength of the terminal is too high, it will generate excessive electromagnetic radiation to the user, even exceeding the maximum amount of electromagnetic radiation allowed by the regulations. In this case, the terminal device needs to reduce its transmission power, that is, perform power backoff to reduce electromagnetic radiation to the human body, so as to meet the MPE regulatory requirements. The 3GPP standard stipulates that after the terminal device performs power backoff to meet the MPE regulatory requirements, it needs to report the power backoff amount to the network device. In the high-frequency system, the terminal device uses different beams to transmit signals in different directions. The radiation effects of different beams on the human body are different. Some beams will radiate the human body, while some beams will not. Some beams generate strong radiation, while some beams generate weak radiation. Therefore, the power backoff amounts corresponding to different beams are also different. Some beams need to be backed off, while some beams do not need to be backed off. Some beams have a large backoff amount, while some beams have a small backoff amount. Therefore, in order to let the terminal device know the specific power backoff situation of each beam accurately, it is necessary to report the power backoff amount of each beam. In the 3GPP standard, for reporting overhead considerations, the terminal device can report the power backoff amount of up to 4 beams.

[0104] Power backoff will cause the uplink transmission signal strength of the beam to decrease, affecting the uplink transmission quality. Therefore, if a beam is power backoff, the terminal device needs to report this information to the network device so that the network device can refer to it when selecting the uplink transmission beam of the terminal device. For example, through the beam management process, the terminal device reports that the RSRP of RS#1 and RS#3 are -81dBm and -80dBm respectively. Since the RSRP of RS#3 is greater than RS#1, under normal circumstances, the network device will instruct the terminal device to use the terminal device beam B2 corresponding to RS#3 for uplink transmission. However, if the terminal device reports that the terminal device beam B2 corresponding to RS#3 has a 3dB power backoff (backed off to -83dBm), when B2 is transmitted uplink, the signal quality is worse than that of the terminal device beam B1 corresponding to RS#1. Therefore, the network device should instruct the terminal device to use the terminal device beam B1 corresponding to RS#1 for uplink transmission.

[0105] The terminal device reports the power backoff in the following format, that is, it needs to report the index of the measurement resource and the corresponding power backoff xdB, indicating that the terminal device beam (best receiving beam) corresponding to the measurement resource has a power backoff of xdB. For example, Figure 1 If beam B2 generates 3dB power backoff due to human body radiation, since B2 is the best receiving beam corresponding to RS#3, the terminal device needs to report RS#3 and the corresponding power backoff amount of 3dB to the network device.

[0106] 6. Beam management

[0107] Both network devices and terminal devices use beams for transmission. In downlink transmission, the beam used by network devices is called a downlink transmit beam, and the beam used by terminal devices is called a downlink receive beam. In uplink transmission, the beam used by terminal devices is called an uplink transmit beam, and the beam used by network devices is called an uplink receive beam. In downlink and uplink transmission, the specific beams used by network devices and terminal devices are determined by the beam management process.

[0108] Assuming that the network device has M beams and the terminal device has N beams, the typical downlink beam management process is performed as follows:

[0109] Beam management configuration: The network device sends a configuration message to the terminal device to configure the downlink beam management-related parameters for the terminal device, including M measurement resources, measurement period, etc. The M measurement resources correspond to the M network device beams one by one. The network device uses each beam to send the corresponding measurement resource. The terminal device measures the measurement resource to determine the quality of the beam. Note that the network device beam is invisible to the terminal device. The terminal device can only determine the quality of each resource, but the terminal device does not know which beam the resource corresponds to.

[0110] Beam measurement: The channel quality corresponding to each network device beam and each terminal device beam is different. The terminal device needs to measure the channel quality between each network device beam and each terminal device beam, so as to determine which beam the network device uses to send and which beam the terminal device uses to receive is the best. The specific measurement method is: in each measurement cycle, the network device uses the above-mentioned M beams to send the corresponding measurement resources in turn, and the terminal device uses one of the N beams to receive and measure, and determines the channel quality between the terminal device beam and the above-mentioned M beams, such as RSRP (Reference signal receiving power). In each measurement cycle, the terminal device uses different beams to receive and measure in turn. Through N measurement cycles, the channel quality between N terminal device beams and M network device beams can be determined.

[0111] Measurement result reporting: The terminal device needs to report the measurement result to the network device so that the network device knows which beam the network device uses for transmission and which beam the terminal device uses for reception. Specifically, the terminal device can report the measurement resource index and RSRP corresponding to up to 4 best beams. The network device knows the correspondence between M beams and M measurement resources, so the corresponding beam can be determined by the reported measurement resource index.

[0112] Terminal receiving beam maintenance: Through the above measurements, the terminal device can determine the best terminal device beam corresponding to each measurement resource. If the network device uses the beam corresponding to a certain measurement resource for downlink transmission, the terminal device will use the corresponding best beam for reception. Figure 2 As shown, it is assumed that the terminal device determines through measurement that the two measurement resources with the best quality are RS#1 and RS#3, and their corresponding best receiving beams are beams B1 and B2 respectively. After the terminal device reports the above two measurement resources to the network device, the best receiving beams corresponding to these two measurement resources can be maintained all the time. If the network device subsequently uses the beam corresponding to a certain measurement resource (such as RS#3) for downlink transmission, the terminal device uses the corresponding best receiving beam (such as B2) for reception.

[0113] 7. Beam indication

[0114] In downlink transmission, the transmission beam used by the network device needs to be informed to the terminal, so that the terminal device knows which receiving beam to use for reception. Specifically, the network device will indicate a measurement resource index to the terminal device to inform the network device that it uses the beam corresponding to the measurement resource for downlink transmission, so that the terminal device will use the best receiving beam corresponding to the measurement resource for reception. For example, Figure 2 As shown, the network device informs it that it uses the beam corresponding to RS#3 for downlink transmission, so the terminal device will use beam B2 for reception.

[0115] In uplink transmission, the transmission beam used by the terminal device is also indicated by the network device. Specifically, the network device indicates a measurement resource to the terminal device, indicating that the terminal device is required to use the best receiving beam corresponding to the measurement resource for uplink transmission. Figure 2 As shown, the network device indicates RS#3 to the terminal device, so that the terminal device will use beam B2 for uplink transmission.

[0116] 8. Multiple upstream panels send messages simultaneously

[0117] In the existing protocol, uplink transmission can only use a single transmission beam. The disadvantages of single-beam transmission are low number of supported transmission streams, low transmission reliability (transmission will fail when the beam is blocked), and limited transmission power (a single beam is sent through a single antenna panel. Due to constraints during power amplification, the transmission power of a single antenna panel may be limited). In order to overcome the above problems, the R18 standard is discussing how to achieve simultaneous uplink multi-beam transmission, referred to as multi-beam simultaneous transmission. Since each beam is generated by a panel, multi-beam simultaneous transmission can also be called multi-panel simultaneous transmission. In the case of multi-beam transmission, the capabilities of multiple beams may overlap in a certain direction, causing the radiation to the human body in that direction to exceed the scenario of single-beam transmission.

[0118] The terminal device determines the best receiving beam corresponding to each measurement resource through the beam management process. Then, the terminal device uses its sensor device to sense whether there is a human body in the direction of each beam, and calculates whether the radiation of each beam to the human body exceeds the standard, and how many dB needs to be backed off. For beams that have generated power backoff, the terminal device reports the measurement resource corresponding to the beam and the power backoff amount of the beam to the network device. In other words, the power backoff amount corresponding to a resource is equal to the power backoff amount of the best receiving beam corresponding to the resource. Figure 2 As shown in the figure, if there is a human body in the direction of beam B2, the signal of beam B2 will cause excessive radiation to the human body, and the terminal device will determine through calculation that the transmit power needs to be backed off by 3dB. Since beam B2 is the receiving beam of RS#3, the terminal device needs to report the back-off amount of 3dB corresponding to RS#3.

[0119] In the uplink multi-beam transmission scenario, the energy of multiple beams may overlap in a certain direction, causing the radiation to the human body in that direction to exceed the radiation of single-beam transmission. Figure 3As shown, beam B4 also has signal energy in the direction of beam B2, resulting in additional energy radiation to the human body in the direction of B2. In order to ensure that the radiation energy to the human body does not exceed the regulations, beam B2 needs to use a larger power backoff, such as 4dB (B2 backs off 3dB when transmitting alone).

[0120] In other words, the MPE power backoff amount corresponding to a beam transmitted alone is different from the MPE power backoff amount when the beam is transmitted simultaneously with another beam.

[0121] The present application provides a variety of communication methods, which can be used in an uplink multi-beam simultaneous transmission scenario, when there is a one-to-many situation between measurement resources and terminal beams, and the terminal device determines the power backoff amount of the measurement resource.

[0122] It should be understood that the description of the specific scenarios in the embodiments of the present application is only an example. In addition to being applicable to the application scenarios described above, the methods provided in the embodiments of the present application are also applicable to application scenarios with similar problems.

[0123] In the description of the embodiments of the present application, unless otherwise specified, "multiple" or "multiple" means two or more. In addition, "at least one" can be replaced by "one or more".

[0124] The ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority or importance of multiple objects. For example, the first indication information and the second indication information can be the same information or different information, and such a name does not indicate the difference in the content, size, application scenario, sender / receiver, priority or importance of the two messages. In addition, the numbering of the steps in the various embodiments introduced in the present application is only for distinguishing different steps, and is not used to limit the order of the steps.

[0125] The technical solution provided in the embodiment of the present application can be applied to wireless communication between communication devices. Wireless communication between communication devices may include: wireless communication between network devices and terminals, wireless communication between network devices and network devices, and wireless communication between terminals. In the embodiment of the present application, the term "wireless communication" may also be referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission" or "transmission".

[0126] It should be understood that the names of all nodes and messages in this application are merely names set for the convenience of description in this application. The names in the actual network may be different. This application should not be understood to limit the names of various nodes and messages. On the contrary, any name that has the same or similar function as the node or message used in this application is regarded as the method of this application or an equivalent replacement, and is within the scope of protection of this application, and will not be repeated below.

[0127] The various communication methods provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0128] It should be understood that the step numbers in the embodiments of the present application are only used for illustration and do not limit the order in which the steps occur.

[0129] Figure 4 A communication method 200 provided by the present application is shown. Figure 4 The method includes at least part of the following contents.

[0130] S210, the network device sends configuration information related to the power backoff amount to the terminal device.

[0131] S220, the terminal device determines a power backoff amount.

[0132] S230, the terminal device sends first reporting information to the network device.

[0133] The following is a detailed introduction to S210 to S230.

[0134] S210, the network device sends configuration information related to the power backoff amount to the terminal device.

[0135] The network device sends radio resource control (RRC) configuration information to the terminal device, including configuration parameters related to MPE power backoff amount reporting.

[0136] The configuration parameters for reporting power backoff include a set of measurement resources, a power backoff quantization step, and the number of measurement resources to be reported. The above set of measurement resources is used to limit a resource range. The terminal device only needs to consider whether the terminal device beam corresponding to the set of measurement resources has power backoff. If the transmission power backoff occurs, the index of the measurement resource and the corresponding MPE power backoff amount are reported to the network device.

[0137] S220, the terminal device determines a power backoff amount.

[0138] The terminal device calculates the power fallback of the terminal device beam corresponding to each resource. The terminal device needs to calculate the corresponding power fallback when the terminal device beam corresponding to each resource is sent uplink separately. The terminal device also needs to calculate the power fallback of each resource when the terminal device beam corresponding to each resource and other resources perform multi-beam transmission.

[0139] like Figure 3 As shown, the terminal device determines through calculation that when the terminal device beam corresponding to RS#3 (i.e., B2) performs single-beam transmission, the corresponding power backoff is 3dB. When the terminal device beams corresponding to RS#3 and RS#4 (i.e., B2 and B4) perform multi-beam transmission, the power backoff corresponding to RS#3 is 4dB.

[0140] S203: The terminal device sends first reporting information to the network device.

[0141] The terminal device sends a first reporting information to the network device, and reports the information of the resource where power backoff occurs and the power backoff amount corresponding to the resource to the network device through the first reporting information. The first reporting information is used to indicate the power backoff amount of each first resource in the at least one first resource, wherein the power backoff amount of the first resource is the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource is transmitted alone, and / or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and the beam corresponding to the second resource are transmitted simultaneously.

[0142] Specifically, the first reporting information may be MAC-CE (media access control-control element) signaling or UCI (uplink control information) signaling.

[0143] The first reported information includes one or more of the following information:

[0144] 1) The quantity of the first resource.

[0145] 2) The number of the second resource.

[0146] 3) At least one power backoff amount, where the power backoff amount is the power backoff amount adopted by a beam corresponding to a first resource, and is used to indicate a specific power backoff value.

[0147] 4) The number of power backoff amounts, used to indicate how many power backoff amounts are included in the first reporting information.

[0148] Specifically, the quantity may be directly indicated by a field, or may be implicitly indicated by other means.

[0149] For example, through a bitmap, each bitmap corresponds to a possible power backoff amount. A bit value of 1 indicates that the corresponding power backoff amount exists, and a bit value of 0 indicates that the corresponding power backoff amount does not exist. A bit value of 0 indicates that the corresponding power backoff amount exists, and a bit value of 1 indicates that the corresponding power backoff amount does not exist.

[0150] 5) at least one power backoff group, each power backoff group including multiple power backoff amounts, wherein each power backoff amount corresponds to a third resource, i.e., one power backoff group corresponds to multiple third resources, and the multiple third resources correspond to multiple beams, and the multiple third resources corresponding to each power backoff group are used for multi-beam transmission, i.e., the beams corresponding to the multiple third resources are transmitted simultaneously.

[0151] Each power backoff amount in the power backoff amount group corresponds to a third resource. The multiple power backoff amounts in the power backoff amount group are the power backoff amounts that occur in each terminal device beam when the terminal device beams corresponding to the multiple third resources perform multi-beam transmission. For example, a power backoff amount group includes {power backoff amount 1, power backoff amount 2}, which correspond to resources {RS#1, RS#2} respectively. Power backoff amount 1 and power backoff amount 2 are the power backoff amounts used by the terminal device beams corresponding to RS#1 and RS#2 respectively when the terminal device beams corresponding to RS#1 and RS#2 perform multi-beam transmission.

[0152] 6) The number of power backoff groups, used to indicate how many power backoff groups the first reporting information includes.

[0153] Each power backoff group includes multiple (such as 2) power backoff amounts, which indicate the power backoff amounts corresponding to each of the multiple resources when the terminal device beams corresponding to the multiple resources perform multi-beam transmission. The quantity can be directly indicated by a field. The quantity can also be implicitly indicated in other ways. For example, through a bit map, each bit map corresponds to a possible power backoff group. A bit value of 1 indicates that the corresponding power backoff group exists, and a bit value of 0 indicates that the corresponding power backoff group does not exist. A bit value of 0 indicates that the corresponding power backoff group exists, and a bit value of 1 indicates that the corresponding power backoff group does not exist.

[0154] 7) At least one first resource.

[0155] Optionally, the at least one first resource may be indicated by an index.

[0156] The first resource is the resource corresponding to the power backoff amount in the first reporting information, that is, the resource corresponding to the terminal device beam using the power backoff amount. In other words, the power backoff amount used by the terminal device beam corresponding to the first resource is the power backoff amount. Optionally, each power backoff amount corresponds to a first resource.

[0157] 8) At least one second resource.

[0158] Optionally, the at least one second resource may be indicated by an index.

[0159] The second resource is a resource for multi-beam transmission of the terminal device beam corresponding to the first resource. The power fallback amount corresponding to the first resource is the power fallback amount used by the terminal device beam corresponding to the first resource when the terminal device beam corresponding to the first resource transmits alone or performs multi-beam transmission with the terminal device beam corresponding to the second resource.

[0160] For a separate power backoff amount in the first reporting information (i.e., not the power backoff amount in the power backoff amount group), the power backoff amount may correspond to a first resource and a second resource, i.e., the power backoff amount is the power backoff amount adopted by the terminal device beam corresponding to the first resource when the terminal device beams corresponding to the first resource and the second resource perform multi-beam transmission.

[0161] Alternatively, for a separate power backoff amount in the first reporting information (i.e., not the power backoff amount in the power backoff amount group), the power backoff amount may correspond to only one first resource, i.e., the power backoff amount is the power backoff amount adopted by the terminal device beam corresponding to the first resource when the first resource performs single-beam transmission.

[0162] 9) First information, used to indicate whether the first reporting information includes a power backoff amount group.

[0163] 10) Second information, where the second information is used to indicate whether the first reporting information includes a power backoff amount or a power backoff amount group.

[0164] 11) Third information, the third information is used to indicate whether all power backoff amounts in the first reporting information correspond to only the first resource, or to the first resource and the second resource.

[0165] Specifically, the third information is used to indicate that each first resource corresponding to the at least one power backoff amount is used for single-beam transmission, or that each first resource corresponding to the at least one power backoff amount is used for multi-beam transmission with one of the at least one second resource.

[0166] In other words, the third information is used to indicate whether all power backoff amounts in the first reported information are power backoff amounts adopted when the terminal device beam corresponding to the first resource performs single-beam transmission, or power backoff amounts adopted by the terminal device beam corresponding to the first resource when the terminal device beam corresponding to the first resource and the second resource performs multi-beam transmission.

[0167] In other words, the third information is used to indicate that each power backoff amount of at least one power backoff amount is the power backoff amount used by a beam corresponding to a first resource when the beam corresponding to a first resource is transmitted alone, or the power backoff amount used by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0168] 12) at least one fourth information, each fourth information corresponding to a power backoff amount, and used to indicate whether the power backoff amount corresponds only to the first resource, or to the first resource and the second resource.

[0169] Specifically, the fourth information is used to indicate that the first resource corresponding to the power backoff amount corresponding to the fourth information is used for single-beam transmission, or the first resource corresponding to the power backoff amount corresponding to the fourth information is used for multi-beam transmission with one of the at least one second resource.

[0170] In other words, the fourth information is used to indicate whether the power backoff amount corresponding to the fourth information is the power backoff amount used when the terminal device beam corresponding to the first resource performs single-beam transmission, or the power backoff amount used when the terminal device beam corresponding to the first resource and the second resource performs multi-beam transmission.

[0171] In other words, the fourth information is used to indicate that the power backoff amount corresponding to the fourth information is the power backoff amount adopted by a beam corresponding to a first resource when the beam corresponding to the first resource is transmitted alone, or the power backoff amount adopted by a beam corresponding to a first resource when a beam corresponding to a first resource and a beam corresponding to a second resource are transmitted simultaneously.

[0172] The following takes the example that the first reported information includes N first resources and M second resources to specifically introduce a type of first reported information.

[0173] In this case, the first reported information includes:

[0174] The number of first resources is used to indicate that the first reporting information includes N first resources;

[0175] The number of second resources is used to indicate that the first reporting information includes M second resources;

[0176] X power backoff amounts, used to indicate power backoff amounts of X first resources, the X power backoff amounts include P first power backoff amounts and Q second power backoff amounts, the first resource corresponding to the first power backoff amount is used for single-beam transmission, and the first resource corresponding to the second power backoff amount is used for multi-beam transmission with at least one second resource of the M second resources, 0≤X≤N, 0≤P, Q≤X;

[0177] Y power backoff groups, each power backoff group including at least two power backoff amounts, the at least two power backoff amounts included in the power backoff group are used to indicate the power backoff amounts of at least two third resources, and the at least two are used for jointly performing multi-beam transmission, 0≤Y≤N / 2.

[0178] The number of power backoff amounts is used to indicate that the number of power backoff amounts is X.

[0179] The number of power backoff groups is used to indicate that the number of power backoff groups is Y.

[0180] It should be understood that the first reported information may also include one or more of the first information, the second information, the third information and the fourth information.

[0181] Optionally, the first reporting information includes a third information, and the third information is used to indicate that when each of the X power backoff amounts is a beam corresponding to a first resource and is transmitted separately, the power backoff amount used by the beam corresponding to the first resource; in other words, the third information is used to indicate that the X power backoff amounts are all first power backoff amounts.

[0182] Optionally, the first reporting information includes X fourth information, wherein the ith fourth information is used to indicate that the ith power backoff amount is the first power backoff amount or the second power backoff amount.

[0183] The following takes the first reporting information being MAC-CE as an example to provide a specific example of the first reporting information.

[0184] like Figure 5 As shown, the MAC-CE includes the following fields. It should be understood that this example does not require the following fields to exist at the same time, that is, the following fields are designed to be independent.

[0185] R: Indicates a reserved bit and has no specific meaning.

[0186] N: used to indicate the number of power backoff amounts in the MAC-CE.

[0187] Ei (i=1, 2, 3, 4): used to indicate whether the i-th power backoff amount corresponds only to the first resource, or to the first resource and the second resource.

[0188] MPE or R: used to indicate the power backoff amount or reserved bits.

[0189] Resource ID indicates the index of a resource, which can be the first resource or the second resource.

[0190] Through each Ei field, the terminal device can determine whether each power backoff amount corresponds only to the first resource or to the first resource and the second resource. If it corresponds only to the first resource, then the power backoff amount corresponds to only one byte (for example, a row in the figure below), which is used to indicate the power backoff amount and / or the first resource. If it corresponds only to the first resource and the second resource, then the power backoff amount corresponds to only two bytes (for example Figure 5 ), the two bytes are used to indicate the power backoff amount and / or the first resource and the second resource. Optionally, the power backoff amount is located in the byte where the first resource is located. For example, the MPE or R field in the byte where the first resource is located in the figure below indicates the power backoff amount, and the MPE or R field in the byte where the second resource is located is reserved. The terminal device determines the number of bytes corresponding to each power backoff amount based on the value of each Ei field (in order of i from small to large), and takes the corresponding number of bytes from top to bottom, thereby determining the power backoff amount, the first resource, and / or the second resource corresponding to each Ei field.

[0191] Figure 6 4 is a schematic block diagram of a communication device 400 provided in an embodiment of the present application. The device 400 includes a transceiver unit 410 and a processing unit 420. The transceiver unit 410 can communicate with the outside, and the processing unit 420 is used for data processing. The transceiver unit 410 can also be called a communication interface or a communication unit.

[0192] In a possible implementation, the device 400 may further include a storage unit, which may be used to store instructions and / or data, and the processing unit 420 may read the instructions and / or data in the storage unit.

[0193] The device 400 can be used to execute the actions performed by the base station in the above method embodiment. In this case, the device 400 can be a base station or a component that can be configured in a base station. The transceiver unit 410 is used to execute the transceiver-related operations on the base station side in the above method embodiment, and the processing unit 420 is used to execute the processing-related operations on the base station side in the above method embodiment.

[0194] Alternatively, the device 400 can be used to execute the actions performed by the terminal device in the above method embodiment. In this case, the device 400 can be a terminal device or a component that can be configured in the terminal device, the transceiver unit 410 is used to execute the transceiver related operations on the terminal device side in the above method embodiment, and the processing unit 420 is used to execute the processing related operations on the terminal device side in the above method embodiment.

[0195] like Figure 7 As shown, the embodiment of the present application further provides a communication device 500. The communication device 500 includes a processor 510, the processor 510 is coupled to a memory 520, the memory 520 is used to store computer programs or instructions or and / or data, and the processor 510 is used to execute the computer programs or instructions and / or data stored in the memory 520, so that the method in the above method embodiment is executed.

[0196] In a possible implementation, the communication device 500 includes one or more processors 510.

[0197] In one possible implementation, Figure 7 As shown, the communication device 500 may further include a memory 7520 .

[0198] In a possible implementation, the communication device 500 may include one or more memories 520 .

[0199] In a possible implementation, the memory 520 may be integrated with the processor 510 or provided separately.

[0200] In one possible implementation, Figure 7 As shown, the wireless communication device 500 may further include a transceiver 530, which is used to receive and / or send signals. For example, the processor 510 is used to control the transceiver 530 to receive and / or send signals.

[0201] As a solution, the communication device 500 is used to implement the operations performed by the base station in the above method embodiment.

[0202] For example, the processor 510 is used to implement the processing-related operations performed by the base station in the above method embodiment, and the transceiver 530 is used to implement the transceiver-related operations performed by the base station in the above method embodiment.

[0203] As another solution, the communication device 500 is used to implement the operations performed by the terminal device in the above method embodiment.

[0204] For example, the processor 510 is used to implement the processing-related operations performed by the terminal device in the above method embodiment, and the transceiver 530 is used to implement the sending and receiving-related operations performed by the terminal device in the above method embodiment.

[0205] The present application also provides a communication device 600, which can be a terminal device or a chip. The communication device 600 can be used to perform the operations performed by the terminal device in the above method embodiment. When the communication device 600 is a terminal device, Figure 8 A simplified schematic diagram of the structure of a terminal device is shown. For ease of understanding and illustration, Figure 8 In the example, a mobile phone is used as the terminal device. Figure 8 As shown, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used to process communication protocols and communication data, as well as to control the terminal device, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input-output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input-output devices.

[0206] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, Figure 8 Only one memory and processor are shown in the figure. In an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device. The memory may be set independently of the processor or integrated with the processor, and the embodiments of the present application do not limit this.

[0207] In the embodiment of the present application, the antenna and the radio frequency circuit with transceiver functions can be regarded as the transceiver unit of the terminal device, and the processor with processing function can be regarded as the processing unit of the terminal device.

[0208] like Figure 8As shown, the terminal device includes a transceiver unit 610 and a processing unit 620. The transceiver unit 610 may also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit 620 may also be referred to as a processor, a processing board, a processing module, a processing device, etc.

[0209] In a possible implementation, the device for implementing the receiving function in the transceiver unit 610 may be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 610 may be regarded as a sending unit, that is, the transceiver unit 610 includes a receiving unit and a sending unit. The transceiver unit may also be sometimes referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also be sometimes referred to as a receiver, a receiver, or a receiving circuit. The sending unit may also be sometimes referred to as a transmitter, a transmitter, or a transmitting circuit.

[0210] For example, in one implementation, the transceiver unit 610 is used to perform a receiving operation of the terminal device. The processing unit 620 is used to perform a processing action on the terminal device side.

[0211] It should be understood that Figure 8 This is only an example and not a limitation. The terminal device including the transceiver unit and the processing unit may not rely on Figure 8 The structure shown.

[0212] When the communication device 600 is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit may be an input / output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. The input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, and various logic circuits. The input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit may be output to a transmitter and transmitted by the transmitter, for example, but not limited to, and the input circuit and the output circuit may be different circuits or the same circuit. In this case, the circuit is used as an input circuit and an output circuit at different times.

[0213] The embodiment of the present application further provides a communication device 700, which can be a base station or a chip. The communication device 700 can be used to perform the operations performed by the base station in the above method embodiment.

[0214] When the communication device 700 is a base station. Fig. 9A simplified schematic diagram of the base station structure is shown. The base station includes a part 710 and a part 720. The part 710 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals; the part 720 is mainly used for baseband processing, controlling the base station, etc. The part 710 can generally be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc. The part 720 is generally the control center of the base station, which can generally be referred to as a processing unit, and is used to control the base station to perform the processing operations on the network device side in the above method embodiment.

[0215] The transceiver unit of part 710 may also be referred to as a transceiver or a transceiver, etc., and includes an antenna and a radio frequency circuit, wherein the radio frequency circuit is mainly used for radio frequency processing. In a possible implementation, the device used to implement the receiving function in part 710 may be regarded as a receiving unit, and the device used to implement the sending function may be regarded as a sending unit, that is, part 710 includes a receiving unit and a sending unit. The receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0216] Part 720 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and control of the base station. If there are multiple boards, each board can be interconnected to enhance processing capabilities. As an optional implementation, multiple boards may share one or more processors, or multiple boards may share one or more memories, or multiple boards may share one or more processors at the same time.

[0217] For example, in one implementation, the transceiver unit of part 710 is used to execute the transceiver-related steps executed by the base station in the embodiment; and part 720 is used to execute the processing-related steps executed by the base station.

[0218] It should be understood that Fig. 9 This is only an example and not a limitation. The network device including the transceiver unit and the processing unit may not rely on Fig. 9 The structure shown.

[0219] When the communication device 700 is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit may be an input / output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. The input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, and various logic circuits. The input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit may be output to a transmitter and transmitted by the transmitter, for example, but not limited to, and the input circuit and the output circuit may be different circuits or the same circuit. In this case, the circuit is used as an input circuit and an output circuit at different times.

[0220] An embodiment of the present application also provides a computer-readable storage medium on which computer instructions for implementing the method executed by a terminal device or a base station in the above method embodiment are stored.

[0221] For example, when the computer program is executed by a computer, the computer can implement the method executed by the terminal device or the method executed by the base station in the above method embodiment.

[0222] An embodiment of the present application also provides a computer program product comprising instructions, which, when executed by a computer, enables the computer to implement the method executed by a terminal device or a method executed by a network device in the above method embodiment.

[0223] An embodiment of the present application also provides a communication system, which includes the base station and terminal equipment in the above embodiment.

[0224] The explanation of the relevant contents and beneficial effects in any of the wireless communication devices provided above can refer to the corresponding method embodiments provided above, and will not be repeated here.

[0225] In an embodiment of the present application, a terminal device or a 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 called main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

[0226] The embodiments of the present application do not specifically limit the specific structure of the execution subject of the method provided in the embodiments of the present application, as long as it is possible to communicate according to the method provided in the embodiments of the present application by running a program that records the code of the method provided in the embodiments of the present application. For example, the execution subject of the method provided in the embodiments of the present application may be a terminal device or a base station, or a functional module in the terminal device or the base station that can call and execute a program.

[0227] Various aspects or features of the embodiments of the present application may be implemented as methods, devices, or products using standard programming and / or engineering techniques. The term "product" as used herein may cover a computer program accessible from any computer-readable device, carrier, or medium. For example, a computer-readable medium may include, but is not limited to: a magnetic storage device (e.g., a hard disk, a floppy disk, or a magnetic tape, etc.), an optical disk (e.g., a compact disc (CD), a digital versatile disc (DVD), etc.), a smart card, and a flash memory device (e.g., an erasable programmable read-only memory (EPROM), a card, a stick, or a key drive, etc.).

[0228] The various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0229] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0230] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM may include the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0231] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0232] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0233] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present application.

[0234] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0235] In the several embodiments provided in the embodiments of the present 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 only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0236] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0237] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0238] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program code.

[0239] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the embodiments of the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: include: Receive power backoff amount reporting related configuration messages; Send first reporting information, the first reporting information including at least one first resource and at least one second resource, the first reporting information being used to indicate the power backoff amount of each first resource in the at least one first resource, the power backoff amount of the first resource being the power backoff amount adopted when the beam corresponding to the first resource is transmitted alone, and / or the power backoff amount adopted by the beam corresponding to the first resource when the beam corresponding to the first resource and a beam corresponding to a second resource are transmitted simultaneously.

2. The method according to claim 1, characterized in that The first reporting information also includes at least one of the following information: The quantity of the first resource; The amount of the second resource; At least one power backoff amount, where each power backoff amount is a power backoff amount used by a beam corresponding to a first resource; The amount of power back-off; at least one power backoff amount group, wherein each power backoff amount group includes a plurality of power backoff amounts; The number of power backoff groups.

3. The method according to claim 2, characterized in that The multiple power backoff amounts in the power backoff amount group correspond to multiple third resources, wherein each third resource corresponds to a power backoff amount, and the multiple third resources correspond to multiple beams, The power backoff amount corresponding to the third resource is: the power backoff amount used by the beam corresponding to the third resource when the multiple beams are transmitted simultaneously.

4. The method according to any one of claims 1 to 3, characterized in that The first reporting information also includes: The first information is used to indicate whether the first reporting information includes a power backoff amount group.

5. The method according to any one of claims 1 to 4, characterized in that The first reporting information also includes: The second information is used to indicate whether the first reporting information includes a power backoff amount or a power backoff amount group.

6. The method according to any one of claims 1 to 5, characterized in that The first reporting information further includes third information, where the third information is used to indicate: Each power backoff amount of the at least one power backoff amount is the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource is transmitted alone, or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and the beam corresponding to the second resource are transmitted simultaneously.

7. The method according to any one of claims 1 to 5, characterized in that The first reporting information further includes at least one fourth information, wherein each fourth information corresponds to a power backoff amount, and the fourth information is used to indicate: The power backoff amount corresponding to the fourth information is the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource is transmitted alone, or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and the beam corresponding to the second resource are transmitted simultaneously.

8. A communication method, characterized in that: include: Send power backoff amount reporting related configuration messages; Receive first reporting information, the first reporting information including at least one first resource and at least one second resource, the first reporting information being used to indicate a power backoff amount of each first resource in the at least one first resource, the power backoff amount of the first resource being a power backoff amount used when the beam corresponding to the first resource is transmitted alone, and / or a power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and a beam corresponding to a second resource are transmitted simultaneously.

9. The method according to claim 8, characterized in that The first reporting information also includes at least one of the following information: The quantity of the first resource; The amount of the second resource; At least one power backoff amount, where each power backoff amount is a power backoff amount used by a beam corresponding to a first resource; The amount of power back-off; at least one power backoff amount group, wherein each power backoff amount group includes a plurality of power backoff amounts; The number of power backoff groups.

10. The method according to claim 9, characterized in that The multiple power backoff amounts in the power backoff amount group correspond to multiple third resources, wherein each third resource corresponds to a power backoff amount, and the multiple third resources correspond to multiple beams, The power backoff amount corresponding to the third resource is: the power backoff amount used by the beam corresponding to the third resource when the multiple beams are transmitted simultaneously.

11. The method according to any one of claims 8 to 10, characterized in that The first reporting information also includes: The first information is used to indicate whether the first reporting information includes a power backoff amount group.

12. The method according to any one of claims 8 to 11, characterized in that The first reporting information also includes: The second information is used to indicate whether the first reporting information includes a power backoff amount or a power backoff amount group.

13. The method according to any one of claims 8 to 12, characterized in that The first reporting information further includes third information, where the third information is used to indicate: Each power backoff amount of the at least one power backoff amount is the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource is transmitted alone, or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and the beam corresponding to the second resource are transmitted simultaneously.

14. The method according to any one of claims 8 to 12, characterized in that The first reporting information further includes at least one fourth information, wherein each fourth information corresponds to a power backoff amount, and the fourth information is used to indicate: The power backoff amount corresponding to the fourth information is the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource is transmitted alone, or the power backoff amount used by the beam corresponding to the first resource when the beam corresponding to the first resource and the beam corresponding to the second resource are transmitted simultaneously.

15. A communication device, characterized in that: include: A unit for implementing the method of any one of claims 1 to 7; or a unit for implementing the method of any one of claims 8 to 14.

16. A computer program product, characterized in that The computer program product comprises: a computer program code, when the computer program code is executed, Execute the method according to any one of claims 1 to 7, or Execute the method of any one of claims 8 to 14.

17. A computer-readable storage medium, characterized in that: The computer readable storage medium stores a computer program. When the computer program is executed, Execute the method according to any one of claims 1 to 7, or Execute the method as claimed in any one of claims 8 to 14.

18. A chip system, characterized in that: comprising: a processor for calling and running a computer program from a memory, Execute the method according to any one of claims 1 to 7; or Execute the method as claimed in any one of claims 8 to 14.

19. A communication system, characterized in that: The method comprises a terminal device and a network device, wherein the terminal device is used to execute the method according to any one of claims 1 to 7, and the network device is used to execute the method according to any one of claims 8 to 14.

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