WO2023082258A1 - 一种确定发波束的方法及装置 - Google Patents

一种确定发波束的方法及装置 Download PDF

Info

Publication number
WO2023082258A1
WO2023082258A1 PCT/CN2021/130673 CN2021130673W WO2023082258A1 WO 2023082258 A1 WO2023082258 A1 WO 2023082258A1 CN 2021130673 W CN2021130673 W CN 2021130673W WO 2023082258 A1 WO2023082258 A1 WO 2023082258A1
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
target
measurement information
transmission
information
Prior art date
Application number
PCT/CN2021/130673
Other languages
English (en)
French (fr)
Inventor
张剑坤
汪浩
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2021/130673 priority Critical patent/WO2023082258A1/zh
Publication of WO2023082258A1 publication Critical patent/WO2023082258A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technologies, and in particular to a method and device for determining beam transmission.
  • Millimeter wave has the characteristics of short wavelength and high frequency, which can be applied in the fifth generation (5th generation, 5G) communication system. Compared with low frequencies, the attenuation of millimeter-wave signals in the atmosphere increases sharply, and large-scale antenna arrays are needed to form high-gain directional narrow beams (beams) to compensate for path loss, thereby ensuring communication reliability. Due to the high hardware complexity, the traditional digital beamforming structure cannot be directly applied to the millimeter wave system. Therefore, the millimeter wave introduces the analog beamforming technology and realizes it in the radio frequency front end.
  • the receiver can determine the service beam pair link (BPL) through the beam management strategy.
  • the service beam pair link can correspond to the service beam pair, and the service beam pair can include the service transmit beam and
  • the service receiving beam of the receiving end, the sending end can send the target signal to the service receiving beam of the receiving end through the service transmitting beam.
  • the receiving end includes M receiving beams, and the transmitting end includes N transmitting beams. Both M and N are positive integers.
  • the receiving end can fix one of the M receiving beams, and the receiving beam A beam pair is established with the N transmitting beams in turn, and the receiving beam in the beam pair measures the reference signal of the transmitting beam to obtain the measurement result.
  • the receiving end fixes another receiving beam among the M receiving beams, and establishes a beam pair with the N sending beams sequentially with the other receiving beam.
  • the receiving end can obtain the signal qualities respectively corresponding to the M ⁇ N beam pairs.
  • the receiving end may use the beam pair corresponding to the best signal quality among the M ⁇ N beam pairs as the serving beam pair, and indicate the serving beam pair to the sending end.
  • the receiving end needs to obtain the signal quality corresponding to the M ⁇ N beam pairs respectively before determining the serving beam pair, and the duration of this is about several hundred milliseconds. In this way, when the receiving end indicates the serving beam pair to the sending end, the serving beam pair is no longer the beam pair corresponding to the best signal quality, and the receiving end cannot better implement beam tracking.
  • the present application provides a method and device for determining a transmission beam, which is used for a receiving end to determine a beam pair with better signal quality as a serving beam pair, which helps the receiving end to achieve better beam tracking.
  • the present application provides a method for determining beam transmission, which can be performed by the receiving end, where the receiving end can be a terminal or a wireless access network device, or it can also be a module in the terminal such as a chip, or it can also be It is a module such as a chip in a wireless access network device.
  • the first measurement information is acquired, and the first measurement information is obtained by measuring reference signals from N transmit beams through the first receive beam in the first measurement period, and the first measurement information is obtained by using To determine the target measurement information corresponding to the first receiving beam at the target time, the target time is after the first measurement period, and N is a positive integer; according to the target measurement information, send indication information, wherein the indication information can be used to indicate K target transmission Beams, the K target transmission beams are determined according to the ordering of signal quality corresponding to the N transmission beams at the target time, K is a positive integer and less than or equal to N.
  • the receiving end can obtain the first measurement information, which is the measurement information corresponding to the optimal receiving beam of the receiving end, and the receiving end can predict the measurement information corresponding to the future time (ie, the target time) according to the first measurement information , that is, the measurement information corresponding to the target time is predicted by the measurement information corresponding to the optimal receiving beam.
  • the receiving end can better determine the beam pair with the best signal quality corresponding to the target time as the serving beam pair. It helps the receiving end to achieve better beam tracking, which in turn helps to reduce the risk of link disconnection.
  • the first measurement information is used to determine the target measurement information corresponding to the first receiving beam at the target moment, including: determining the first launch angle according to the first measurement information; wherein, in the first measurement period Among them, the signal quality corresponding to the first emission angle is the highest; according to the first measurement information and the first emission angle, the target measurement information is determined.
  • the receiving end determines the first emission angle corresponding to the optimal receiving beam according to the first measurement information, wherein the first emission angle can be understood as the optimal emission angle that can be measured by the optimal receiving beam, so that the receiving end can A measurement information and an optimal launch angle to predict target measurement information.
  • the receiving end can predict the target measurement information through the optimal launch angle, which helps to improve the accuracy of the target measurement information.
  • determining the first launch angle according to the first measurement information includes: determining the first launch angle according to the first measurement information and a beam information set; wherein, the beam information set includes N transmit beams One or more of the corresponding N emission angles and the relative positional relationship between any two emission beams among the N emission beams.
  • the method further includes: receiving beam information of the first beam transmission, where the beam information of the first transmission beam includes the transmission angle of the first transmission beam, the distance between the first transmission beam and the second transmission beam One or more items in the relative position relationship, the first transmission beam is one of the N transmission beams, and the second transmission beam is one or more transmission beams adjacent to the first transmission beam among the N transmission beams; or , receiving beam information set.
  • the receiving end is based on the first measurement information, and one of the N transmission angles corresponding to the N transmission beams included in the beam information set, and the relative positional relationship between any two transmission beams in the N transmission beams
  • One or more items are used to determine the first launch angle, thus providing at least three implementations for the receiving end to determine the first launch angle.
  • the receiving end determines the first emission angle by using the first measurement information and the N emission angles corresponding to the N emission beams, which helps to determine the first emission angle more accurately.
  • acquiring the first measurement information includes: in the second measurement period, measuring the reference signal through the second receiving beam to obtain the second measurement information; acquiring the M-1 measurement information before the second measurement period
  • the second measurement information and the measurement information corresponding to the M-1 measurement cycles are composed of M measurement information
  • the measurement information corresponding to any one of the M-1 measurement cycles is the measurement information corresponding to the measurement cycle
  • the receiving beam is obtained by measuring the reference signal; the first measurement information is selected from M pieces of measurement information, wherein, among the M signal qualities corresponding to the M receiving beams indicated by the M pieces of measurement information, the first receiving beam measures The corresponding signal quality is the highest.
  • the receiving end after the receiving end measures the reference signal in the second measurement period (that is, the current measurement period) to obtain the second measurement information, the receiving end can form M according to the second measurement information and the measurement information corresponding to M-1 measurement periods measurement information, wherein the M measurement information corresponds to the M receiving beams of the receiving end, and then the receiving end can determine the first measurement information with the best signal quality from the M measuring information, that is, the measurement corresponding to the optimal receiving beam information.
  • determining the target measurement information according to the first measurement information and the first launch angle includes: predicting the target launch angle at the target time according to the first launch angle, and the target time and the end of the first measurement period The time difference is the first time delay; according to the target launch angle and the first measurement information, the target measurement information is determined; wherein, the first time delay includes one or more of cycle time delay and processing time delay, and the cycle time delay includes L measurement periods, L is determined according to the first measurement period and the second measurement period, and L is a positive integer.
  • the receiving end can fully consider the time delay between the target moment and the end moment of the first measurement period, so that the target measurement information can be accurately predicted, and the service beam pair can be obtained more accurately, which helps to achieve a better beam tracking, thereby helping to reduce the risk of broken links.
  • the target measurement information includes the measurement information of n transmission beams, and the n transmission beams are determined according to the relative positional relationship between the historical optimal transmission beam and other transmission beams among the N transmission beams
  • the best transmission beam in history is the transmission beam corresponding to the highest signal quality among the N transmission beams before the first measurement period, where n is a positive integer and less than or equal to N.
  • the transmitting end includes N transmission beams
  • the receiving end determines n transmission beams according to the relative positional relationship between the historical optimal transmission beam and other transmission beams among the N transmission beams of the transmission end, and then predicts n transmission beams.
  • the target measurement information is reference signal received power (reference signal received power, RSRP); according to the target measurement information, sending indication information, including: selecting the target measurement information, RSRP sorting from large to small
  • the first K RSRPs, the first K RSRPs correspond to the K target transmission beams; the indication information of the K target transmission beams is sent, and the indication information of the target transmission beams includes the RSRP corresponding to the target transmission beams and the identification of the transmission beams.
  • the target measurement information can be RSRP
  • the receiving end and the sending end can be a terminal and an access network device respectively.
  • the terminal can determine a serving beam pair through this solution, and obtain a larger gain.
  • the embodiment of the present application provides a communication device, which has the function of realizing the above-mentioned first aspect or any possible implementation of the first aspect.
  • the device may be a receiving end, and the receiving end may be a terminal , or a chip included in the terminal, and the receiving end may also be a radio access network device, or a chip included in the radio access network device.
  • the above-mentioned functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware, and the hardware or software includes one or more modules or units or means (means) corresponding to the above-mentioned functions.
  • the structure of the device includes a processing module and a transceiver module, where the processing module is configured to support the device to execute the functions in the first aspect or any implementation manner of the first aspect.
  • the transceiver module is used to support the communication between the device and other communication devices, for example, when the device is a terminal, it can receive the beam information set from the wireless access network device.
  • the communication device may also include a storage module, which is coupled to the processing module and stores necessary program instructions and data of the device.
  • the processing module may be a processor
  • the transceiving module may be a transceiver
  • the storage module may be a memory
  • the memory may be integrated with the processor, or may be configured separately from the processor.
  • the structure of the apparatus includes a processor, and may further include a memory.
  • the processor is coupled with the memory, and can be used to execute the computer program instructions stored in the memory, so that the device executes the method in the above first aspect or any possible implementation manner of the first aspect.
  • the device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver or an input/output interface; when the device is a chip included in the terminal, the communication interface may be an input/output interface of the chip.
  • the transceiver may be a transceiver circuit, and the input/output interface may be an input/output circuit.
  • the embodiment of the present application provides a chip system, including: a processor and a memory, the processor and the memory are coupled, the memory is used to store programs or instructions, and when the programs or instructions are executed by the processor, the chip system realizes The above first aspect or the method in any possible implementation manner of the first aspect.
  • the chip system further includes an interface circuit for exchanging code instructions to the processor.
  • processors in the chip system, and the processors may be implemented by hardware or by software.
  • the processor may be a logic circuit, an integrated circuit, or the like.
  • the processor may be a general-purpose processor implemented by reading software codes stored in a memory.
  • the memory can be integrated with the processor, or can be set separately from the processor.
  • the memory may be a non-transitory processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip, or may be respectively disposed on different chips.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, the computer executes any one of the above-mentioned first aspect or the first aspect. method in one possible implementation.
  • the embodiment of the present application provides a computer program product, which enables the computer to execute the method in the above first aspect or any possible implementation manner of the first aspect when the computer reads and executes the computer program product.
  • the embodiment of the present application provides a communication system, and the communication system may include a sending end and a receiving end.
  • the receiving end may be configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by the present application.
  • FIG. 2 is a schematic diagram of a transmitting and receiving beam provided by the present application
  • FIG. 3 is a schematic flow diagram of determining a serving beam pair provided by the present application.
  • FIG. 4 is a schematic flow diagram of a method for determining beam transmission provided by the present application.
  • FIG. 5 is a timing diagram provided by the present application.
  • FIG. 6 is a schematic flowchart of a terminal prediction target measurement information provided by the present application.
  • FIG. 7 is a schematic flow diagram of a terminal determining a launch angle provided by the present application.
  • FIG. 8 is a schematic diagram of a beam neighborhood relationship provided by the present application.
  • FIG. 9 is a schematic diagram of the format of a TCI state provided by the present application.
  • FIG. 10 is a schematic diagram of the format of another TCI state provided by the present application.
  • FIG. 11 is a schematic diagram of a predicted launch angle of a target provided by the present application.
  • FIG. 12 is a schematic structural diagram of a communication device provided by the present application.
  • FIG. 13 is a schematic structural diagram of another communication device provided by the present application.
  • FIG. 1 is a schematic structural diagram of a communication system 1000 applied in an embodiment of the present application.
  • the communication system includes a radio access network 100 and a core network 200 , and optionally, the communication system 1000 may also include the Internet 300 .
  • the radio access network 100 may include at least one radio access network device (such as 110a and 110b in FIG. 1 ), and may also include at least one terminal (such as 120a-120j in FIG. 1 ).
  • the terminal is connected to the wireless access network device in a wireless manner, and the wireless access network device is connected to the core network in a wireless or wired manner.
  • the core network equipment and the wireless access network equipment can be independent and different physical equipment, or the functions of the core network equipment and the logical functions of the wireless access network equipment can be integrated on the same physical equipment, or it can be a physical equipment It integrates some functions of core network equipment and some functions of wireless access network equipment. Terminals and wireless access network devices may be connected to each other in a wired or wireless manner.
  • FIG. 1 is only a schematic diagram.
  • the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 .
  • the wireless access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), and a next-generation mobile communication system in the fifth generation (5th generation, 5G) Base station (next generation NodeB, gNB), the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the wireless fidelity (wireless fidelity, WiFi) system etc.; it can also be a module or unit that completes some functions of the base station, for example, it can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • base station base station
  • evolved NodeB, eNodeB evolved NodeB
  • TRP transmission reception point
  • TRP transmission reception point
  • the CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and also completes the function of the service data adaptation protocol (SDAP); the DU completes the functions of the base station
  • the functions of the radio link control layer and the medium access control (medium access control, MAC) layer can also complete the functions of part of the physical layer or all of the physical layer.
  • 3rd generation partnership project, 3GPP third generation partnership project
  • the radio access network device may be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), or a relay node or a donor node.
  • the embodiment of the present application does not limit the specific technology and specific equipment form adopted by the radio access network equipment.
  • a base station is used as an example of a radio access network device for description below.
  • a terminal may also be called terminal equipment, user equipment (user equipment, UE), mobile station, mobile terminal, and so on.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things ( internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc.
  • Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal.
  • Base stations and terminals can be fixed or mobile. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the base station and the terminal.
  • the communication between the base station and the terminal, between the base station and the base station, and between the terminal and the terminal can be carried out through the licensed spectrum, the communication can also be carried out through the unlicensed spectrum, and the communication can also be carried out through the licensed spectrum and the unlicensed spectrum at the same time; Communications may be performed on frequency spectrums below megahertz (gigahertz, GHz), or communications may be performed on frequency spectrums above 6 GHz, or communications may be performed using both frequency spectrums below 6 GHz and frequency spectrums above 6 GHz.
  • the embodiments of the present application do not limit the frequency spectrum resources used for wireless communication.
  • the functions of the base station may also be performed by modules (such as chips) in the base station, or may be performed by a control subsystem including the functions of the base station.
  • the control subsystem including base station functions here may be the control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city.
  • the functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or may be performed by a device including the terminal function.
  • the communication system shown in FIG. 1 includes a sending end and a receiving end, where the sending end can send signals/information to the receiving end.
  • the transmitting end may include one or more transmitting beams
  • the receiving end may include one or more receiving beams.
  • the transmitting end and the receiving end are base stations and terminals respectively, wherein the transmitting end (i.e. base station) may include 64 transmission beams (which may be represented as transmission beam 0 to transmission beam 63), 64 transmission beams Each of the transmit beams may correspond to its own transmit angle.
  • the receiving end (that is, the terminal) may include 4 receiving beams (represented as receiving beam 0 to receiving beam 3), and each of the 4 receiving beams may correspond to its own receiving angle.
  • the 5G NR system introduces a higher frequency FR2 band.
  • the frequency range of the FR2 band is 24.25GHz-52.6GHz.
  • the FR2 band can also be called millimeter wave (mmWave). Combining mmWave with analog beamforming can better realize the signal transmission between the transmitter and receiver.
  • the receiving end can determine the service beam pair through the beam management strategy.
  • the service beam pair includes the service sending beam of the sending end and the service receiving beam of the receiving end.
  • the sending end can send target signals to the service receiving beam of the receiving end through the service sending beam.
  • the receiving end such as mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle, drone, helicopter, plane, ship, robot, mechanical arm, smart home equipment, etc.
  • the receiving end needs to determine the serving beam pair as accurately as possible according to the beam management strategy, so as to improve the signal quality of the target signal received by the receiving end from the sending end.
  • the sending end and the receiving end may be the base station and the terminal in FIG. 2 respectively, and the base station may include sending beams 0 to Transmitting beam 63, the terminal may include receiving beam 0 to receiving beam 3.
  • any one of receiving beams 0 to 3 can form a beam pair with transmitting beam 0 to transmitting beam 63 respectively, that is, the receiving beam in the terminal and the transmitting beam in the base station can form 256 beam pairs ( may be referred to as a set of beam pairs).
  • the base station sends a reference signal to the terminal, wherein the reference signal may specifically be a downlink reference signal, such as a synchronization signal block (synchronization signal block, SSB), a channel state information reference signal (channel state information-reference signal, CSI-RS) .
  • a synchronization signal block synchronization signal block, SSB
  • a channel state information reference signal channel state information-reference signal, CSI-RS
  • Step 302 the terminal measures the reference signal from the base station, and determines measurement information according to the reference signal.
  • the terminal can first fix the receiving beam 0, and form the receiving beam 0 and the transmitting beam 0 into a beam pair, measure the reference signal sent by the transmitting beam 0 through the receiving beam 0, and obtain the corresponding measurement value of (receiving beam 0, transmitting beam 0), and the measured value It can be used to indicate the channel quality between receiving beam 0 and transmitting beam 0. Further, the terminal may form the receiving beam 0 and the transmitting beam 1 into a beam pair to obtain the measurement value corresponding to (receiving beam 0, transmitting beam 1).
  • the terminal can obtain the measured values corresponding to (receiving beam 0, transmitting beam 0), (receiving beam 0, transmitting beam 1), ..., (receiving beam 0, transmitting beam 63) respectively (a total of 64 measured values),
  • the 64 measured values may form the measurement information corresponding to receiving beam 0.
  • the period in which the receiving end sequentially measures the reference signals sent by all transmitting beams through a receiving beam may be referred to as a measurement period, or a transmitting period, or a scanning period of transmitting beams, etc.
  • the terminal sequentially measures the period of the reference signal sent by the transmitting beam 0 to the transmitting beam 63 through the receiving beam 0, which is a measurement cycle.
  • the terminal can continue to measure the reference signals in the order of receiving beam 0, receiving beam 1, receiving beam 2, and receiving beam 3 (receiving beam 3 and then returning to receiving beam 0), and so on.
  • the beam measures the reference signal sent by the base station through the transmit beam to obtain measurement information corresponding to the receive beam.
  • the measurement information corresponding to multiple receiving beams of the terminal can form a measurement information set.
  • the receiving beams Measurement information respectively corresponding to receiving beam 0, receiving beam 1, receiving beam 2, and receiving beam 3 constitutes a measurement information set.
  • Step 303 the terminal determines a candidate beam pair according to the measurement information.
  • the terminal after the terminal determines the measurement information based on the current measurement period, it can obtain the receiving beam corresponding to the current measurement period according to the measurement sequence of multiple receiving beams in the terminal and the receiving beam corresponding to the current measurement period The measurement information corresponding to the other previous received beams, and form the measurement information into a measurement information set.
  • the terminal obtains the measurement information corresponding to the receiving beam 0 by measuring the reference signal of the receiving beam 0, and the terminal can continue to obtain the measurement information corresponding to the receiving beam 0, that is, the receiving beam 3, the receiving beam 2, and the receiving beam 1 respectively. , compose these measurement information into a measurement information set.
  • the terminal can select a beam pair whose signal quality meets the requirements from the beam pair set according to the measurement information set as a candidate beam pair.
  • the candidate beam pair may be the beam pair with the best signal quality in the measurement information set.
  • Step 304 the terminal sends the identification and measurement value of the candidate beam pair to the base station.
  • the identification of the candidate beam pair may be used to indicate the transmitting beam and the receiving beam in the candidate beam pair, where the identification of the candidate beam pair may include the identification of the transmitting beam and the identification of the receiving beam in the candidate beam pair.
  • the candidate beam pair is (receiving beam 1, transmitting beam 1), then the identification of the candidate beam pair may include the identification of receiving beam 1 and the identification of transmitting beam 1.
  • Step 305 the base station determines the serving beam pair according to the identifier and the measurement value of the candidate beam pair.
  • the serving beam pair is a beam pair used for transmitting target signals between the base station and the terminal.
  • the base station may determine the serving beam pair corresponding to the current measurement period and used to transmit the target signal according to the identification and measurement value of the candidate beam pair, combined with the serving beam pair corresponding to the previous measurement period.
  • the serving beam pair may be the same as or different from the candidate beam pair; when there are multiple candidate beam pairs, the serving beam pair may be one of multiple candidate beam pairs, or It may also not be included in the plurality of candidate beam pairs.
  • the base station may switch the serving transmission beam used for transmitting the target signal based on the determined serving beam pair.
  • Step 306 the base station sends the identification of the serving beam pair to the terminal.
  • the base station may send a medium access control layer control element (medium access control-control element, MAC-CE) to the terminal, the MAC-CE includes the identifier of the serving beam pair, and the MAC-CE may be used to instruct the terminal to switch the receiving
  • the received beam after switching ie, the serving receiving beam
  • the serving receiving beam can be used by the terminal to receive the target signal sent by the serving sending beam from the base station.
  • Step 307 the base station sends the target signal to the terminal.
  • the terminal selects the candidate beam pair according to the measurement information set, there may be a problem of inaccurate selection.
  • the terminal composes the measurement information corresponding to receiving beam 0 and the measurement information corresponding to receiving beam 0 before receiving beam 0, that is, corresponding to receiving beam 3, receiving beam 2, and receiving beam 1 respectively, into a measurement information set, and selects in the measurement information set
  • the selected candidate beam pair is (receiving beam 1, transmitting beam 1).
  • the beam pair whose signal quality meets the requirements may be (receiving beam 1, transmitting beam 2).
  • the terminal cannot measure the signal quality corresponding to (receiving beam 1, transmitting beam 2), that is, it cannot determine the candidate beam pair (receiving beam 1, transmitting beam 2). Beam 1, Beam 2). Only after polling the (receiving beam 1, transmitting beam 2) again, the terminal can select the candidate beam pair (receiving beam 1, transmitting beam 2) from the corresponding measurement information set.
  • the present application provides a method for determining the transmission beam, which can be executed by the sending end and the receiving end.
  • the sending end and the receiving end may be the base station and the terminal in Figure 1 or Figure 2 respectively, and correspondingly, the base station may send a downlink signal to the terminal, wherein the downlink signal may be a physical downlink control channel (PDCCH) ), one or more of downlink shared physical channel (physical downlink shared channel, PDSCH) or downlink reference signal (such as SSB, CSI-RS).
  • the downlink signal may be a physical downlink control channel (PDCCH)
  • PDCCH physical downlink control channel
  • PDSCH physical downlink shared physical channel
  • CSI-RS downlink reference signal
  • the transmitting end and the receiving end can also be the terminal and the base station in FIG. 1 respectively.
  • the terminal can send an uplink signal to the base station, wherein the uplink signal can be a physical uplink control channel (physical uplink control channel, PUCCH), a physical uplink shared channel One or more of (physical uplink shared channel, PUSCH) or uplink reference signal (such as listening reference signal (sounding reference signal, SRS)).
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • uplink reference signal such as listening reference signal (sounding reference signal, SRS)
  • the sending end and the receiving end may also be the two terminals in FIG. 1 (which may be referred to as terminal 1 and terminal 2), and terminal 1 may send a sidelink signal to terminal 2, wherein the sidelink signal may be a physical sidelink control Channel (physical sidelink control channel, PSCCH), physical sidelink shared channel (physical sidelink shared channel, PSSCH) or sidelink reference signal (such as CSI-RS, phase tracking reference signal (phase tracking reference signal, PT-RS) , demodulation reference signal (demodulation reference signal, DM-RS), etc.) in one or more.
  • the sidelink signal may be a physical sidelink control Channel (physical sidelink control channel, PSCCH), physical sidelink shared channel (physical sidelink shared channel, PSSCH) or sidelink reference signal (such as CSI-RS, phase tracking reference signal (phase tracking reference signal, PT-RS) , demodulation reference signal (demodulation reference signal, DM-RS), etc.) in one or more.
  • the sidelink signal may be a physical sidelink control Channel (physical
  • the sending end and the receiving end are respectively referred to as the base station and the terminal for illustration.
  • the transmitting beam of the base station can be referred to as the transmitting beam for short
  • the receiving beam of the terminal can be referred to as the receiving beam for short. beam.
  • Step 401 the terminal acquires first measurement information.
  • the first measurement information is obtained by the terminal in the first measurement period by measuring the reference signals from the N transmission beams through the first reception beam, and the first measurement information is used to indicate the target corresponding to the first reception beam at the target moment
  • the target time is after the first measurement period.
  • the base station may send a reference signal, such as SSB or CSI-RS, to the terminal.
  • a reference signal such as SSB or CSI-RS
  • the base station may include N transmission beams, where N is a positive integer, and the base station may sequentially transmit reference signals to the terminal through the N transmission beams in a preset order, and the N transmission beams may correspond to a measurement cycle.
  • the terminal may include M receiving beams, where the M receiving beams correspond to M measurement periods, and M is a positive integer.
  • the terminal may respectively measure the reference signals sent by the N transmission beams through the reception beam corresponding to the measurement period, and obtain the measurement information corresponding to the measurement period.
  • the terminal can obtain M pieces of measurement information respectively corresponding to M measurement periods, and the M pieces of measurement information can form a measurement information set, and the measurement information set can correspond to a measurement period set, that is, a measurement period set includes M a measurement cycle.
  • Table 1 is an example of a correspondence between terminal measurement reference signals provided in this application.
  • the terminal measures the reference signals of 64 transmit beams through receive beam 0, and obtains the measurement information 0 corresponding to receive beam 0; in T1, the terminal measures the reference signals of 64 transmit beams through receive beam 1 , to obtain the measurement information 1 corresponding to the receiving beam 1; in T2, the terminal measures the reference signals of 64 transmitting beams through the receiving beam 2, and obtains the measurement information 2 corresponding to the receiving beam 2; in T3, the terminal measures 64 through the receiving beam 3
  • the reference signal of each transmit beam is used to obtain the measurement information 3 corresponding to the receive beam 3.
  • the terminal can obtain the measurement information of the 4 receiving beams in the 4 measurement periods respectively, where the measurement periods T0 to T3 can together form a set of measurement periods, measurement information 0, measurement information 1, measurement information 2 and measurement information 3 can together form a measurement information set.
  • Measurement cycle receiving beam 64 beams measurement information T0 Receiving beam 0 Transmit beam 0 to transmit beam 63 Measurement information 0 T1 Receiving beam 1 Transmit beam 0 to transmit beam 63 Measurement information 1 T2 Receiving Beam 2 Transmit beam 0 to transmit beam 63 Measurement information 2 T3 Receiving Beam 3 Transmit beam 0 to transmit beam 63 Measurement information 3
  • the terminal can measure the reference signal cyclically, that is, after T3, the terminal can also measure the reference signals of 64 transmit beams through the receive beam 0 in T4, and obtain the measurement information 4 corresponding to the receive beam 0; and in T5, The reference signals of 64 transmit beams are measured by the receive beam 1 to obtain the measurement information 5 corresponding to the receive beam 1, and so on.
  • Table 2 is another kind of correspondence relationship of terminal measurement reference signals provided in the present application as an example.
  • T0 to T3 can be considered as a set of measurement periods, but also T1 to T4, or T2 to T5 can be considered as a set of measurement periods. It can be understood that 4 consecutive measurement periods can form a set of measurement periods , and the 4 pieces of measurement information corresponding to the 4 consecutive measurement periods form a set of measurement information.
  • Measurement cycle receiving beam 64 beams measurement information T0 Receiving beam 0 Transmit beam 0 to transmit beam 63 Measurement information 0 T1 Receiving beam 1 Transmit beam 0 to transmit beam 63 Measurement Information 1 T2 Receiving Beam 2 Transmit beam 0 to transmit beam 63 Measurement information 2 T3 Receiving Beam 3 Transmit beam 0 to transmit beam 63 Measurement information 3 T4 Receiving beam 0 Transmit beam 0 to transmit beam 63 Measurement Information 4 T5 Receiving beam 1 Transmit beam 0 to transmit beam 63 Measurement information 5 T6 Receiving Beam 2 Transmit beam 0 to transmit beam 63 Measurement Information 6 T7 Receiving Beam 3 Transmit beam 0 to transmit beam 63 Measurement Information 7 ... ... ... ... ...
  • the terminal can measure the reference signals of the N transmitting beams through the receiving beam, and obtain the measurement values corresponding to the N transmitting beams respectively, where the measured values are, for example, the reference signal received power (reference signal received power, RSRP) or signal-to-noise ratio (signal noise ratio, SNR), etc.
  • the terminal may determine the measurement information of the receiving beam according to the measurement values respectively corresponding to the N transmitting beams.
  • the terminal may use the measurement values corresponding to the N transmission beams as the measurement information of the reception beam, that is, the measurement information of the reception beam may include the measurement values corresponding to the N transmission beams.
  • the terminal may determine one or more of the average value, maximum value, minimum value, and median value of the measurement values respectively corresponding to the N transmitting beams, as the measurement information of the receiving beam.
  • the terminal may acquire the first measurement information according to M pieces of measurement information (that is, a set of measurement information).
  • M pieces of measurement information may be used to characterize the signal quality of the reference signal received by the receiving beam, or to characterize the channel quality between the corresponding receiving beam and the base station.
  • the terminal may determine, according to the M pieces of measurement information, the measurement information indicating the best signal quality as the first measurement information.
  • the receiving beam corresponding to the first measurement information may be referred to as the first receiving beam
  • the measurement period corresponding to the first measurement information may be referred to as the first measurement period.
  • the terminal may determine one or more of the average value, maximum value, minimum value, and median value of the N measurement values according to the N measurement values, as the evaluation index corresponding to the measurement information. Furthermore, the terminal may determine the first measurement information according to the evaluation indicators respectively corresponding to the M pieces of measurement information. With reference to the example in Table 1, the terminal acquires measurement information 0, measurement information 1, measurement information 2, and measurement information 3, where each measurement information may include 64 measurement values, and the terminal may determine the measurement information for each measurement information The average value of the 64 measured values is used as the evaluation index of the measurement information.
  • the terminal determines the first measurement information according to the average values corresponding to the four measurement information, for example, the average value corresponding to the measurement information 1 is the largest among the average values corresponding to the four measurement information, then the measurement information 1 is the first measurement information. measurement information.
  • the terminal may predict the target measurement information at the target moment according to the first measurement information.
  • the target time may specifically be the time when the base station sends the target signal to the terminal.
  • the target time may be a first time delay difference from the end time of the first measurement period.
  • the first latency may include one or more of processing latency and cycle latency.
  • the processing delay may specifically include one or more of the terminal processing delay and the base station processing delay, where the terminal processing delay may be that in the method embodiment in FIG. 3 above, the terminal determines the candidate beam pair according to the measurement information set, and The delay caused by reporting the identification of the candidate beam pair to the base station, and the terminal processing delay may be related to terminal capabilities and protocol regulations.
  • the processing delay of the base station may be that in the above-mentioned embodiment of the method in FIG.
  • the time delay caused by notifying the identification to the terminal, and the processing time delay of the base station may be related to the base station capability and protocol regulations.
  • the period delay may include L measurement periods, the value of L may be determined by the terminal according to the first measurement period and the second measurement period, and L is a positive integer.
  • the terminal determines the first measurement information from the M pieces of measurement information
  • the M pieces of measurement information, the M pieces of measurement periods, and the M pieces of receiving beams all have a one-to-one correspondence.
  • the measurement period T0, received beam 0, and measurement information 0 correspond to each other
  • the measurement period T1, received beam 1, and measurement information 1 correspond to each other.
  • the terminal measures the reference signal of the base station through the second receiving beam in the second measurement period.
  • the second measurement period can be understood as the measurement period in which the terminal currently measures the reference signal.
  • the second measurement period can also be called the current measurement period.
  • the second receiving beam is the receiving beam corresponding to the measurement period in which the terminal currently measures the reference signal.
  • the terminal may acquire the measurement information respectively corresponding to the M-1 measurement periods before the second measurement period, so as to form M measurement information (that is, a set of measurement information), Then the terminal selects first measurement information from the M pieces of measurement information.
  • the first measurement period may be the same as or different from the second measurement period, and correspondingly, the first receiving beam may be the same as or different from the second receiving beam.
  • the terminal obtains measurement information 4 in T4, and then the terminal obtains the measurement information corresponding to the three measurement cycles (ie, T1, T2, T3) before T4, respectively.
  • the terminal can determine the first measurement information according to the measurement information 1, measurement information 2, measurement information 3, and measurement information 4. For example, if the first measurement information is measurement information 4, then the first measurement period is T4, and the first measurement period and the second measurement period The measurement period is the same, and the first receiving beam is the same as the second receiving beam.
  • the first time delay may not include the cycle time delay, that is, the first time delay includes the processing time delay, and the difference between the target time and the end time of the first measurement period is the processing time delay .
  • the second measurement cycle is T4, and the terminal obtains measurement information 4 in T4, and then the terminal can determine the first measurement information according to measurement information 1, measurement information 2, measurement information 3, and measurement information 4, such as the first measurement information If the measurement information is measurement information 1, then the first measurement period is T1.
  • the first measurement period is different from the second measurement period, and the first receiving beam is different from the second receiving beam.
  • the period delay difference between the first measurement period and the second measurement period includes 3 measurement periods ( T2 , T3 and T4 ). That is, there is a first time delay between the target moment and the end time of the first measurement period, and the first time delay may specifically include a processing time delay and three measurement periods.
  • the period delay is determined by the terminal according to the second measurement period and the first measurement period.
  • the terminal determines the period delay according to the end moment of the second measurement period and the end moment of the first measurement period, for example, the terminal uses the difference between the end moment of the second measurement period and the end moment of the first measurement period as the period time delay.
  • the terminal determines the period delay according to the start time of the second measurement period and the start time of the first measurement period, for example, the terminal uses the difference between the start time of the second measurement period and the start time of the first measurement period as the period delay.
  • the present application can also use other implementation manners to enable the terminal to determine the period delay according to the first measurement period and the second measurement period, and no more examples are given here.
  • the terminal can predict the measurement information at the target time according to the first measurement information and the first delay, which can be specifically described in conjunction with the schematic flow chart of the terminal predicting target measurement information shown in FIG. 6 .
  • Step 601 the terminal determines a first launch angle according to the first measurement information and the first time delay.
  • the N transmission beams of the base station may respectively have respective transmission angles
  • the transmission angle of the transmission beam is the angle of departure (angle of departure, AoD) at which the base station transmits a signal to the terminal through the transmission beam, that is, the N transmission beams of the base station
  • the transmit beams correspond to N transmit angles.
  • the identification of the N transmission beams can be expressed as #0, #1, ..., #N-1 respectively
  • the N emission angles corresponding to the N transmission beams can be expressed as ⁇ 0 , ⁇ 1 , ... , ⁇ N-1 .
  • #0 corresponds to the emission angle ⁇ 0 , that is, the emission angle of the transmission beam 0 is ⁇ 0
  • #1 corresponds to the emission angle ⁇ 1 , that is, the emission angle of the transmission beam 1 is ⁇ 1 , and so on.
  • the launch angle can further include elevation and azimuth, where the elevation is the angle between the launch direction line and the horizontal plane, and the azimuth is the direction from the north direction line of a certain point, clockwise to Horizontal angle between emission directions.
  • the emission angle ⁇ 0 includes the altitude angle 0° and the azimuth angle 7°
  • the ⁇ 1 includes the altitude angle -7° and the azimuth angle 7°. It can also be understood that each transmitting beam may have its own elevation angle and azimuth angle.
  • the signal quality corresponding to the first emission angle is the highest.
  • the first emission angle is the optimal emission angle for the base station to transmit signals determined by the terminal according to the first measurement information, and the first emission angle may be N One of the emission angles, or in the interval of two adjacent emission angles.
  • the first launch angle can be equal to a certain value in the N launch angles, such as the first launch angle is equal to ⁇ 31 ; the first launch angle can also be located in the interval between certain two adjacent launch angles, such as The first emission angle is between ⁇ 31 and ⁇ 32 .
  • the highest signal quality may also be referred to as the best signal quality.
  • the terminal may preset a first model, where the first model is obtained through training based on historical data, and the historical data includes a plurality of measurement information and an optimal launch angle corresponding to each measurement information.
  • the signal quality corresponding to the optimal emission angle is better than or equal to the signal quality corresponding to the N emission angles of the base station.
  • the terminal may input the first measurement information into the first model, so that the first model outputs an optimal launch angle corresponding to the first measurement information (ie, the first launch angle).
  • the terminal may determine the first launch angle according to the first measurement information and the beam information set.
  • FIG. 7 exemplarily showing a schematic flow diagram of a terminal determining a launch angle:
  • Step 701 the terminal acquires a beam information set.
  • the beam information set is first explained as follows:
  • the beam information set may include beam information of N transmission beams, and the beam information of the transmission beam may include one or more of the transmission angle of the transmission beam and the relative positional relationship between the transmission beam and other transmission beams.
  • the beam information set may include one or more items of the N transmission angles corresponding to the N transmission beams and the beam neighborhood relationship, where the beam neighborhood relationship can be used to indicate any of the N transmission beams The relative positional relationship between the two transmission beams, or may be used to indicate the adjacent transmission beams of any one of the N transmission beams.
  • the adjacent transmission beams of the transmission beam may include a transmission beam on the left of the transmission beam, a transmission beam on the right, an upper transmission beam, and a lower transmission beam.
  • Sending beams (a total of 4 sending beams).
  • Figure 8 is a schematic diagram of a beam neighborhood relationship provided by the present application. According to the order of left, right, up and down, the adjacent beams of beam 17 are respectively beam 16, beam 18, beam 18, and beam 17. 1.
  • Send beam 33 Alternatively, a beam located at the upper left of the beam, a beam at the upper right, a beam at the lower left, and a beam at the lower right (a total of 8 beams) can be added as the beam adjacent beams.
  • the adjacent beams of transmitting beam 17 are respectively transmitting beam 16, transmitting beam 18, transmitting beam 1, transmitting beam 33. Sending beam 0, sending beam 2, sending beam 32, and sending beam 34.
  • the adjacent transmission beams of the transmission beams may also be determined according to other forms.
  • the beam information set may be indicated to the terminal by the base station.
  • the following example provides two ways for the base station to indicate the beam information set to the terminal, wherein the first way may be that the terminal receives the beam information set; the second way may be that the terminal receives the beam information for the first transmitted beam. The two methods are explained in detail as follows:
  • Mode 1 The terminal receives the beam information set.
  • the beam information set includes N emission angles.
  • the beam information set includes an identifier of each transmission beam among the N transmission beams and a corresponding transmission angle.
  • the beam information set includes the identifier #0 and the emission angle ⁇ 0 , the identifier #1 and the emission angle ⁇ 1 and so on.
  • each emission angle may include an elevation angle and an azimuth angle, and it can also be understood that the beam information set includes an identification of each emission beam among the N emission beams and a corresponding elevation angle and azimuth angle.
  • the beam information set includes identification #0, elevation angle 0° and azimuth angle 7°, identification #1, elevation angle -7° and azimuth angle 7°, etc.
  • the beam information set includes the emission angles of each of the N transmission beams, the N transmission angles are arranged in the order of the identifications of the N transmission beams, and the terminal can N launch angles, determine the corresponding relationship between launch angles and transmit beams.
  • the N emission angles arranged in order in the beam information set are specifically ⁇ 0 , ⁇ 1 , ⁇ 2 , ..., ⁇ N-1 , then the terminal can determine the first emission angle in the beam information set (ie ⁇ 0 ) is the emission angle corresponding to the transmission beam 0, and the second emission angle (ie ⁇ 1 ) is the emission angle corresponding to the transmission beam 1, etc.
  • the beam information set includes beam neighborhood relations.
  • the beam information set includes an identifier of each transmission beam and identifiers of adjacent transmission beams of the transmission beam.
  • the beam information set provided by this application can refer to Table 5.
  • the identification of transmission beam 1 is #1
  • the identification of adjacent transmission beams corresponding to transmission beam 1 follows the left
  • the order of right, up, down, upper left, upper right, lower left, and lower right is #0, #2, -, #17, -, -, #16, #18, where "-" can be expressed as being in the corresponding position There are no adjacent transmit beams.
  • the beam information set includes N emission angles and beam neighborhood relationships.
  • N emission angles and beam neighborhood relationships may be carried in the same message, or carried in different messages.
  • the terminal may receive the beam information set from the base station before or after measuring the reference signals of the N transmission beams (that is, all transmission beams) of the base station through the first reception beam.
  • the terminal may also receive the beam information set from the base station while the first receiving beam is measuring the reference signal of any one of the N transmitting beams of the base station.
  • the terminal may receive the beam information set from the base station when accessing the cell.
  • the base station may broadcast the beam information set, and correspondingly, when the terminal accesses the cell, the terminal may receive the beam information set broadcast by the base station.
  • the terminal sends an acquisition request of the beam information set to the base station, and then the terminal may receive the beam information set sent by the base station in response to the acquisition request.
  • the beam information set may be carried in radio resource control (radio resource control, RRC) signaling, or carried in downlink control information (downlink control information, DCI).
  • RRC radio resource control
  • DCI downlink control information
  • Manner 2 The terminal receives beam information of the first transmitted beam.
  • the beam information of the first beam includes one or more items of a radiation angle of the first beam and a neighborhood relationship of the first beam.
  • the neighborhood relationship of the first transmission beam may specifically be the relative positional relationship between the first transmission beam and the second transmission beam, and the second transmission beam is one or more transmission beams adjacent to the first transmission beam among the N transmission beams. beam.
  • the beam information of the first beam includes the emission angle of the first beam.
  • the beam information of the first beam includes an identifier and a launch angle of the first beam.
  • the beam information of the first transmission beam may include the identifier #0 and the transmission angle ⁇ 0 .
  • the beam information of the first beam includes the beam neighborhood relationship of the first beam.
  • the beam information of the first transmitting beam includes an identifier of the first transmitting beam and an identifier of the second transmitting beam.
  • the first beam is beam 1
  • the beam information of the first beam can be referred to in Table 6.
  • the identifier of the first beam is #1
  • the second beam can have 8, the signs of the second beam are #0, #2, -, #17, -, -, #16, #18 in the order of left, right, up, down, left up, right up, left down, right down , where "-" may indicate that there is no second beam at the corresponding position.
  • the first transmission beam is transmission beam 17
  • the beam information of the first transmission beam can refer to Table 7
  • the identification of the first transmission beam is #17
  • the identification of the second transmission beam is according to left, right, up and down , upper left, upper right, lower left, and lower right are respectively #16, #18, #1, #33, #0, #2, #32, #34.
  • the beam information of the first beam includes the launch angle of the first beam and the beam neighborhood relationship of the first beam.
  • the emission angle of the first beam and the beam neighborhood relationship of the first beam may be carried in the same message or carried in different messages.
  • the terminal may receive beam information of the first transmitting beam from the base station before measuring the reference signal of the first transmitting beam through the first receiving beam. Further, the base station may indicate to the base station the reference signal of the first transmission beam and the beam information of the first transmission beam through a piece of indication information. Based on the above-mentioned cases 1 and 2, examples are as follows:
  • the beam information of the first transmitted beam can be included in the transmission configuration indicator (transmission configuration indicator, TCI) state (state), specifically, the format of the TCI state is shown in Figure 9, and the TCI state includes the AoD field, AoD field may be used to indicate the launch angle of the first beam. Further, the TCI state may also include one or more of the CSI-RS field and the SSB field, where the CSI-RS field is used to indicate the identity of the first beam and the CSI-RS resource index, or the SSB field is used to indicate The identifier and SSB resource index of the first transmitted beam.
  • TCI transmission configuration indicator
  • state transmission configuration indicator
  • the TCI state includes the AoD field, AoD field may be used to indicate the launch angle of the first beam.
  • the TCI state may also include one or more of the CSI-RS field and the SSB field, where the CSI-RS field is used to indicate the identity of the first beam and the CSI-RS resource index, or the SSB field is used to
  • the terminal may receive the TCI state from the base station, where the TCI state includes a CSI-RS field (for example, CSI-RS-ResourceId1, where CSI-RS-ResourceId1 can be used to indicate that the identifier of the first beam is #1) and In the AoD field (for example, ⁇ 1 ), the terminal can determine that the identifier of the first transmission beam is #1 according to the CSI-RS-ResourceId1, and determine that the transmission angle of the first transmission beam is ⁇ 1 according to the AoD field.
  • CSI-RS field for example, CSI-RS-ResourceId1, where CSI-RS-ResourceId1 can be used to indicate that the identifier of the first beam is #1
  • the AoD field for example, ⁇ 1
  • the beam information of the first transmitted beam can be included in the TCI state, the format of the TCI state is shown in Figure 10, for example, the TCI state includes a neighborhood relationship field (represented as neighborb-beam in Figure 10), the neighborhood relationship field Can be used to indicate the identity of the second beam. Further, the TCI state may also include one or more of the CSI-RS field and the SSB field, where the CSI-RS field is used to indicate the identity of the first beam and the CSI-RS resource index, or the SSB field is used to indicate the first beam The identifier and SSB resource index of a beam.
  • the TCI state includes a neighborhood relationship field (represented as neighborb-beam in Figure 10), the neighborhood relationship field Can be used to indicate the identity of the second beam.
  • the TCI state may also include one or more of the CSI-RS field and the SSB field, where the CSI-RS field is used to indicate the identity of the first beam and the CSI-RS resource index, or the SSB field is used to indicate the first
  • the terminal may receive the TCI state from the base station, where the TCI state includes a CSI-RS field (for example, CSI-RS-ResourceId1, where CSI-RS-ResourceId1 can be used to indicate that the identifier of the first beam is #1) and Neighborhood relationship fields (such as #0, #2, -, #17, -, -, #16, #18).
  • CSI-RS field for example, CSI-RS-ResourceId1, where CSI-RS-ResourceId1 can be used to indicate that the identifier of the first beam is #1
  • Neighborhood relationship fields such as #0, #2, -, #17, -, -, #16, #18.
  • the terminal can determine the identity of the first beam to be #1 according to the CSI-RS-ResourceId1, and determine the identity of the second beam to be #0, #2, -, #17, -, -, #16 according to the neighborhood relationship field , #18, wherein, these signs are arranged in order from left, right, top, bottom, left top, right top, left bottom, right bottom, and "-" can indicate that there is no second beam at the corresponding position.
  • the terminal receives the beam information for the first transmission beam before measuring the reference signal of the first transmission beam of the base station through the first reception beam, after one measurement period, the terminal uses the first reception beam After the beam measurement is completed, the reference signals of the N transmission beams of the base station can also be obtained to obtain the beam information set.
  • the terminal can not only receive the beam information for the first transmission beam before measuring the reference signal of the first transmission beam through the first reception beam, the terminal can also measure the reference signal of the first transmission beam through the first reception beam After that, or while measuring the reference signal of the first transmitting beam through the first receiving beam, the beam information of the first transmitting beam from the base station is received, which is not specifically limited in this application.
  • the base station indicates the beam information set to the terminal
  • the terminal can determine the N number of beams in the base station according to the identity information of the base station. One or more items of the N launch angles corresponding to the transmit beams and beam neighborhood relationships.
  • the terminal can also automatically learn the beam neighborhood relationship of the base station through machine learning.
  • the terminal includes M receiving beams, and the terminal can measure the reference signals of the N transmitting beams from the base station according to each of the M receiving beams, so as to obtain the measurement information corresponding to the M receiving beams respectively , the measurement information respectively corresponding to the M receiving beams may form a measurement information set.
  • the terminal can obtain multiple measurement information sets, and each measurement information set includes measurement information corresponding to M receiving beams respectively, and the terminal can obtain the beam neighborhood of the base station through machine learning according to the multiple measurement information sets relation.
  • Step 702 the terminal determines a first launch angle according to the first measurement information and the beam information set.
  • the first measurement information may include N measurement values respectively corresponding to the N transmission beams, and the terminal may determine the first transmission angle according to the N measurement values and the beam information set.
  • Beam Neighborhood Relationship is included in the Beam Information Set:
  • the terminal may determine the first emission angle according to the beam neighborhood relationship and N measurement values.
  • the terminal can solve the following relational expression 1 according to the beam neighborhood relationship and N measured values to obtain the first emission angle.
  • the uniform linear array can be understood as that the antennas at the transmitting end are linearly arranged at equal intervals.
  • relational expression 1 can be expressed as:
  • ⁇ is the intermediate variable to be eliminated, is the first launch angle
  • P max is the maximum measured value among the N measured values
  • the transmitting beam max is the transmitting beam corresponding to the maximum measured value P max ;
  • the transmission beam (max-1) and the transmission beam (max+1) are the transmission beams on the left and right sides of the transmission beam max, respectively, and P max-1 and P max+1 are the transmission beam (max-1) and transmission beam (max+ 1)
  • P max-1 and P max+1 are the transmission beam (max-1) and transmission beam (max+ 1)
  • the terminal may determine N transmission angles respectively corresponding to the N transmission beams according to the beam neighborhood relationship, and then the terminal determines the first transmission angle according to the N transmission angles and N measurement values.
  • the terminal can obtain the emission angle of each transmitting beam according to the neighborhood relationship of the beams. Then the terminal determines the first launch angle based on the following relational expression 2.
  • relational expression 2 can be expressed as:
  • ⁇ is the intermediate variable to be eliminated, is the first launch angle
  • the transmission beam max is the transmission beam corresponding to the maximum measurement value P max
  • ⁇ max is the transmission angle corresponding to the transmission beam max
  • the transmission beam (max-1) and the transmission beam (max+1) are the transmission beams on the left and right sides of the transmission beam max, respectively, and P max-1 and P max+1 are the transmission beam (max-1) and transmission beam (max+ 1)
  • P m is the larger value among P max-1 and P max+1
  • the transmission beam m is the transmission beam corresponding to P m
  • ⁇ m is the transmission angle corresponding to the transmission beam m.
  • the terminal can determine the first emission angle according to the N emission angles and the first measurement information.
  • the specific determination method please refer to the relational expression 2 in the above example 2, and will not repeat it here .
  • the terminal may determine the first emission angle according to the beam neighborhood relationship, the N emission angles, and the first measurement information.
  • the terminal can first verify the N emission angles according to the beam neighborhood relationship.
  • the beam neighborhood relationship can indicate the size relationship between the N emission angles, and the terminal can verify the N emission angles according to the beam neighborhood relationship.
  • the size relationship between the angles is used to verify whether the N launch angles are correct.
  • the transmission beam 0 is located above the transmission beam 16
  • the terminal can obtain N transmission angles.
  • the altitude angle corresponding to the transmitting beam 0 and the altitude angle corresponding to the transmitting beam 16 are determined whether the altitude angle corresponding to the transmitting beam 0 is greater than the altitude angle corresponding to the transmitting beam 16 . If the terminal verifies that the N emission angles are correct according to the size relationship between the N emission angles indicated by the beam neighborhood relationship, then the terminal can obtain the first emission angle based on the N emission angles included in the beam information set based on the second relation , so that the terminal can improve the accuracy of determining the first launch angle.
  • the terminal can first obtain the first emission angle (which may be referred to as the first emission angle 1) based on the beam neighborhood relationship included in the beam information set and based on relational expression 1; and according to the N included in the beam information set emission angles, the first emission angle (may be referred to as the first emission angle 2) is obtained based on the second relation. Then the terminal can perform verification according to the first launch angle 1 and the first launch angle 2. For example, if the terminal determines that the difference between the first launch angle 1 and the first launch angle 2 is less than the launch angle threshold, the terminal can determine the first launch angle Angle 1 and first launch Angle 2 pass validation.
  • the terminal may further determine the final first launch angle according to the first launch angle 1 and the first launch angle 2, for example, the terminal determines that the average value of the first launch angle 1 and the first launch angle 2 is the final first launch angle, so The accuracy of determining the first launch angle by the terminal can be improved.
  • Step 602 the terminal predicts the target launch angle at the target moment according to the first launch angle and the first time delay.
  • the terminal can be in the process of continuous movement, and it can be assumed that the direction and speed of the terminal remain unchanged in a short period of time, so that the terminal can predict the target launch at the target time according to the first launch angle and the first time delay horn.
  • the terminal may further predict the target launch angle according to the first launch angle and optimal launch angles corresponding to multiple measurement periods before the first measurement period.
  • the target launch angle can be obtained based on the following relational formula three.
  • relational expression 3 can be specifically expressed as:
  • the terminal may also predict the target launch angle at the target moment according to the first launch angle and the first time delay, in combination with the terminal's moving direction and moving speed.
  • the terminal can predict the location information of the terminal at the target time according to the historical location information and the first time delay of the terminal, in combination with the moving direction and moving speed of the terminal, where the historical location information can be the terminal at the end of the first measurement period Time (may be referred to as historical time) location information. Then the terminal predicts the target launch angle based on the first launch angle, historical position information, and position information of the terminal at the target moment.
  • the historical position information of the terminal is S1, and the terminal moves in a fixed direction according to the speed v, and the terminal can determine the position of the terminal at the target time according to S1, the first delay and the speed v.
  • Step 603 the terminal determines target measurement information according to the target emission angle and the first measurement information.
  • the target measurement information may also include N target measurement values respectively corresponding to the N transmitting beams, wherein the N target measurement values may be determined by the target emission angle and the N A measured value is determined. It can be understood that the N target measurement values can be obtained based on the following relation 4.
  • P 0 ′, P 1 ′, ..., P N-1 ′ are the N target measurement values in the target measurement information
  • P 0 , P 1 , ..., P N-1 are the N target measurement values included in the first measurement information. measured value, is the target launch angle.
  • the terminal can be launched according to the target launch angle and P i in the first measurement information, predict P i ′ in the target measurement information through a specific way of the following relational formula 4 shown exemplarily:
  • M T is the number of transmitting antennas included in the base station, is the target launch angle, is the first launch angle.
  • the terminal may also select n transmission beams from the N transmission beams, and predict the n transmission beams corresponding to the n measurement values corresponding to the n transmission beams in the first measurement information.
  • the target measurement value is used as the target measurement information
  • n is a positive integer and less than or equal to N.
  • the terminal can use the transmission beam corresponding to the highest signal quality among the N transmission beams before the first measurement period as the historical optimal transmission beam, and then according to the historical optimal transmission beam and the beam neighborhood relationship, start from N Select n transmission beams from the transmission beams.
  • the n transmitting beams may be one or more adjacent transmitting beams of the historical optimal transmitting beam, or one or more transmitting beams close to the historical optimal transmitting beam.
  • the historical optimal transmission beam is transmission beam 17, and the terminal can predict 8 adjacent transmission beams of transmission beam 17, that is, transmission beam 16, transmission beam 18, transmission beam 1, transmission beam 33, transmission beam Target measurement values corresponding to beam 0, transmit beam 2, transmit beam 32, and transmit beam 34, respectively.
  • the terminal may further determine target measurement values corresponding to multiple transmission beams such as transmission beam 3, transmission beam 19, transmission beam 35, transmission beam 48, transmission beam 49, transmission beam 50, and transmission beam 51. The terminal combines these determined target measurement values into target measurement information.
  • the optimal transmission beams corresponding to two adjacent measurement periods can be the same or close in position, that is, there is no need to predict the target measurement corresponding to the transmission beam that is far away from the historical optimal transmission beam value, which can reduce the calculation amount of the terminal.
  • Step 402 the terminal sends indication information to the base station according to the target measurement information, wherein the indication information is used to indicate K target transmission beams, and the K target transmission beams are determined according to the signal quality ranking corresponding to the N transmission beams at the target time , K is a positive integer and less than or equal to N.
  • the target measurement information may include N target measurement values corresponding to the N transmit beams respectively, and the terminal may sort the N target measurement values from large to small, so as to obtain the first K target measurement values in the sorting, K is a positive integer less than or equal to N.
  • the target measurement information may include n target measurement values, and the terminal may sort the n target measurement values from large to small, so as to obtain the first K target measurement values in the sorting, where n is a positive integer and less than Or equal to N, K is a positive integer and less than or equal to n.
  • the first K target measurement values may correspond to K target transmission beams.
  • the target transmission beam may also be referred to as the current optimal transmission beam, or an alternative transmission beam.
  • the indication information sent by the terminal to the base station may include the indication information of the K target beams, where the indication information of the target beam may include the identification of the target beam, or the indication information of the target beam may include the target Transmit beam identification and target measurements.
  • the terminal can send the indication information of K target beams to the base station at the sending time, the sending time can be before the target time, or after the target time, and the sending time can be located at a specific position of the measurement period, such as at Within a preset time period after the second measurement cycle.
  • the indication information of the target transmitting beam may also include the identification of the target receiving beam, that is, the indication information of the target transmitting beam may also include the identification of the target beam pair and the target measurement value, wherein the identification of the target beam pair may be It includes the identification of the target sending beam and the identification of the target receiving beam, and further, the target receiving beam is the first receiving beam.
  • Step 403 the base station determines the serving beam pair corresponding to the target time according to the indication information.
  • the base station can select the service beam corresponding to the target time from the K target beams according to the identifiers of the K target beams.
  • the base station may randomly select one of the K target transmission beams as the service transmission beam corresponding to the target moment.
  • the base station may select the service beam corresponding to the target time from the K target beams according to the identifiers of the K target beams and the service beams corresponding to multiple measurement periods before the target time, where the target time corresponds to
  • the service transmission beam may be one of the service transmission beams corresponding to the multiple measurement periods before the target time, or the service transmission beam close to the target time and corresponding to the multiple measurement periods.
  • the base station may use the target transmit beam as the service transmit beam corresponding to the target moment.
  • the base station can select the target time corresponding to the target time from the K target beams according to the identification of the K target beams and the target measurement value.
  • Service beam In an example, the base station selects the target transmission beam corresponding to the largest target measurement value among the K target measurement values as the service transmission beam corresponding to the target time.
  • the base station can also obtain the measurement values of N transmission beams corresponding to each of the multiple historical measurement periods before the target time, and according to the indication information of the K target transmission beams and the multiple historical For the measurement values of the N transmission beams corresponding to each historical measurement period in the measurement period, a filtering algorithm is executed to select the service transmission beam corresponding to the target time from the N transmission beams.
  • the implementation method for the base station to obtain the measurement values of the N transmission beams corresponding to each historical measurement period is described in advance as follows: Taking the previous historical measurement period at the target time as an example, the terminal can also determine the indication information of the K transmission beams, and the K transmission beams The indication information of the transmission beams is sent to the base station, and correspondingly, the base station can obtain the identifiers and measurement values of the K transmission beams in the previous historical measurement period.
  • the base station can set the measurement values of other (N-K) transmission beams not reported by the terminal in the previous historical measurement cycle as preset values.
  • the preset value is smaller than the K measurement values reported by the terminal.
  • the minimum value for example, the preset value is equal to 1/2 of the minimum value. In this way, the base station can acquire the measurement values of the N transmission beams respectively corresponding to each historical measurement period among the multiple historical measurement periods.
  • the base station may also set the measurement values of other (N-K) beams other than the K target beams as preset values, Therefore, the base station can acquire the measurement values of the N transmission beams in the current measurement period.
  • the base station may combine the measurement values of the N transmission beams in the current measurement period and the measurement values of the N transmission beams corresponding to multiple historical measurement periods to determine the weighted average of the measurement values corresponding to the N transmission beams respectively, where The weighted values corresponding to each measured value may be the same or different.
  • the base station After the base station obtains N weighted averages corresponding to the N transmission beams, it can select the largest weighted average from the N weighted averages, and use the transmission beam corresponding to the largest weighted average as the service transmission beam corresponding to the target time .
  • the base station can obtain the identifier of the target receiving beam (ie, the identifier of the first receiving beam), and combine the identifier of the target receiving beam corresponding to the target time and the identifier of the serving transmitting beam to form a service beam pair corresponding to the target time.
  • the base station may acquire the identifier of the target receiving beam from the indication information of the target transmitting beam.
  • step 404 the base station sends the identity of the serving beam pair corresponding to the target time to the terminal.
  • the base station can determine whether the serving beam pair corresponding to the target moment is the same as the currently used serving beam pair, and if so, it indicates that the serving beam pair currently used by the base station and the terminal is optimal and does not need to be updated.
  • the base station may send an identifier of the serving beam pair corresponding to the target time to the terminal.
  • the base station can send a MAC-CE to the terminal, and the MAC-CE includes the identification of the service beam pair corresponding to the target time, and the MAC-CE can be used to instruct the terminal to switch the service receiving beam, and the service receiving beam after the switching can be used
  • the terminal receives the target signal sent by the serving beam from the base station.
  • Step 405 the base station sends the target signal to the terminal.
  • the base station and the terminal in FIG. 1 as an example for the sending end and the receiving end respectively.
  • This application is also applicable to implementations in which the transmitting end and the receiving end are the terminal and the base station in FIG. 1 respectively.
  • the signal can be SRS.
  • this application can also be applied to the realization of the two terminals in Figure 1 as the sending end and the receiving end, for example, the receiving end is represented by terminal 1, and the sending end is represented by terminal 2, then the realization of Figure 4 to Figure 11 In the manner, the terminal is replaced by terminal 1, and correspondingly, the base station is replaced by terminal 2, and the reference signal may be a DM-RS.
  • the terminal as the sending end may rotate, and the receiving end can determine the emission angle after the rotation of the sending end, and then determine the service beam pair according to the emission angle after the rotation of the sending end, in combination with the implementation methods in Figure 4 to Figure 11 above.
  • the receiving end selects the first measurement information from the measurement information set.
  • the first measurement information is the measurement information corresponding to the optimal receiving beam
  • the receiving end can predict the future time (that is, the target time) corresponding to the first measurement information based on the first measurement information.
  • Measurement information that is, the measurement information corresponding to the target time is predicted by the measurement information corresponding to the optimal receiving beam. In this way, the beam pair with the best signal quality corresponding to the target time can be better determined as the service beam pair, which is helpful Better beam tracking at the receiver.
  • the SNR obtained by measuring the reference signal at the receiving end is greater than the first preset threshold value
  • RSRP1 is the RSRP obtained by the receiving end by measuring the reference signal of the current optimal beam transmission
  • RSRP2 is the RSRP obtained by the receiving end by measuring the reference signal of the historical optimal beam transmission.
  • the receiving end and the transmitting end are the terminal and the base station respectively
  • LOS line of sight
  • the terminal moves at high speed or is close to the base station
  • the base station received by the terminal
  • the signal can obtain a large gain. For example, if the terminal's moving speed is 60km/h and the distance between the terminal and the base station is 40m, the terminal can obtain a gain of more than 4dB when receiving the signal from the base station; If the distance is 40m, the terminal can obtain a gain of more than 10dB when receiving the signal of the base station, which helps to reduce the risk of link disconnection.
  • FIG. 12 and FIG. 13 are schematic structural diagrams of possible communication devices provided by the present application. These communication apparatuses can be used to realize the function of the receiving end (such as a terminal or a wireless access network device) in the above method embodiments, and thus can also realize the beneficial effects of the above method embodiments.
  • the receiving end such as a terminal or a wireless access network device
  • the communication device may be a terminal as shown in Figure 1, or a module (such as a chip) applied to a terminal, the communication device may be a wireless access network device as shown in Figure 1, or It is a module (such as a chip) applied to radio access network equipment.
  • the communication device 1200 includes a processing module 1201 and a transceiver module 1202 .
  • the communication device 1200 is configured to realize the functions of the receiving end in the above-mentioned related embodiments in FIG. 4 to FIG. 11 .
  • the processing module 1201 is configured to acquire first measurement information, where the first measurement information is obtained by measuring reference signals from N transmit beams through the first receive beam in the first measurement period , the first measurement information is used to determine the target measurement information corresponding to the first receiving beam at the target time, the target time is after the first measurement period, and N is a positive integer; the processing module 1201 is also used to calculate from N K target transmission beams are determined in the transmission beams, wherein the K target transmission beams are determined according to the signal quality ranking corresponding to the N transmission beams at the target time, K is a positive integer and is less than or equal to N; the transceiver module 1202 is used for Send indication information, where the indication information is used to instruct K targets to transmit beams.
  • the processing module 1201 is specifically configured to: determine the first emission angle according to the first measurement information; wherein, in the first measurement period, the signal quality corresponding to the first emission angle is the highest; The measurement information and the first launch angle are used to determine the target measurement information.
  • the processing module 1201 is specifically configured to: determine the first emission angle according to the first measurement information and the beam information set; where the beam information set includes N emission angles corresponding to N emission beams, One or more items in the relative positional relationship between any two beams in the N beams.
  • the processing module 1201 is further configured to: control the transceiver module 1202 to receive the beam information of the first beam, the beam information of the first beam includes the launch angle of the first beam, the first beam One or more items in the relative position relationship with the second beam, the first beam is one of the N beams, and the second beam is adjacent to the first beam among the N beams One or more transmitting beams; or, controlling the transceiving module 1202 to receive a beam information set.
  • the processing module 1201 is specifically configured to: in the second measurement period, measure the reference signal through the second receiving beam to obtain the second measurement information; obtain M-1 measurement information before the second measurement period
  • the measurement information corresponding to the period, the second measurement information, and the measurement information corresponding to M-1 measurement periods form M measurement information; the measurement information corresponding to any one of the M-1 measurement periods is the received measurement information corresponding to the measurement period
  • the beam measurement reference signal is obtained; the first measurement information is selected from the M measurement information, wherein, among the M signal qualities corresponding to the M receiving beams indicated by the M measurement information, the signal quality corresponding to the first receiving beam measurement is the highest .
  • the processing module 1201 is specifically configured to: predict the target launch angle at the target moment according to the first launch angle, and the target moment is different from the end moment of the first measurement period by a first time delay; and the first measurement information to determine the target measurement information; wherein, the first time delay includes one or more of cycle time delay and processing time delay, and the cycle time delay includes L measurement cycles, and L is based on the first measurement cycle Determined with the second measurement period, L is a positive integer.
  • the target measurement information includes the measurement information of n transmission beams, and the n transmission beams are determined according to the relative positional relationship between the historical optimal transmission beam and other transmission beams among the N transmission beams
  • the best transmission beam in history is the transmission beam corresponding to the highest signal quality among the N transmission beams before the first measurement period, where n is a positive integer and less than or equal to N.
  • the target measurement information is RSRP
  • the processing module 1201 is specifically configured to: select the first K RSRPs in the target measurement information and RSRP sorted from large to small, and the first K RSRPs correspond to K target Transmitting beams: sending indication information of K target transmission beams, where the indication information of target transmission beams includes the RSRP corresponding to the target transmission beams and the identification of the transmission beams.
  • FIG. 13 shows an apparatus 1300 provided in the embodiment of the present application.
  • the apparatus shown in FIG. 13 may be a hardware circuit implementation manner of the apparatus shown in FIG. 12 .
  • the apparatus may be applicable to the flow chart shown above to perform the functions of the receiving end in the above method embodiments.
  • FIG. 13 For ease of illustration, only the main components of the device are shown in FIG. 13 .
  • the device 1300 shown in FIG. 13 includes a communication interface 1310, a processor 1320 and a memory 1330, wherein the memory 1330 is used for storing program instructions and/or data.
  • Processor 1320 may cooperate with memory 1330 .
  • Processor 1320 may execute program instructions stored in memory 1330 . When the instructions or programs stored in the memory 1330 are executed, the processor 1320 is used to perform the operations performed by the processing module 1201 in the above embodiments, and the communication interface 1310 is used to perform the operations performed by the transceiver module 1202 in the above embodiments.
  • the memory 1330 is coupled to the processor 1320 .
  • the coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • At least one of the memories 1330 may be included in the processor 1320 .
  • the communication interface may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.
  • the transceiver when the communication interface is a transceiver, the transceiver may include an independent receiver and an independent transmitter; it may also be a transceiver integrated with a transceiver function, or a communication interface.
  • Apparatus 1300 may also include a communication link 1340 .
  • the communication interface 1310, the processor 1320 and the memory 1330 can be connected to each other through the communication line 1340;
  • the communication line 1340 can be a peripheral component interconnect standard (peripheral component interconnect, referred to as PCI) bus or an extended industry standard architecture (extended industry standard architecture , referred to as EISA) bus and so on.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the communication line 1340 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 13 , but it does not mean that there is only one bus or one type of bus.
  • the embodiment of the present application provides a communication device, including a processor, the processor is connected to the memory, the memory is used to store the computer program, and the processor is used to execute the computer program stored in the memory, so that the communication device performs Functions of the receiving end in the related embodiments in FIG. 4 to FIG. 11 .
  • an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed by a computer, the related information shown in Figure 4 to Figure 11 is realized.
  • the function of the receiving end in the embodiment is realized.
  • the embodiment of the present application provides a computer program product
  • the computer program product includes computer programs or instructions, when the computer programs or instructions are executed by the computer, the functions of the receiving end in the related embodiments in Figure 4 to Figure 11 are realized .
  • the embodiment of the present application provides a communication system, the communication system includes a receiving end and a sending end, wherein the receiving end can be used to perform the functions of the receiving end in the related embodiments in FIG. 4 to FIG. 11 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种确定发波束的方法及装置，用于解决现有技术中接收端不能较好的实现波束跟踪的问题。在本申请中，接收端获取第一测量信息，第一测量信息是接收端在第一测量周期中、通过第一收波束测量来自于N个发波束的参考信号得到的，其中第一测量信息可用于确定目标时刻的第一收波束对应的目标测量信息，目标时刻在第一测量周期之后，N为正整数；接收端根据目标测量信息，发送指示信息，其中该指示信息可用于指示K个目标发波束，该K个目标发波束是根据在目标时刻、N个发波束对应的信号质量排序确定的，K为正整数且小于或等于N。

Description

一种确定发波束的方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种确定发波束的方法及装置。
背景技术
毫米波具有波长短、频率高等特点，其可应用于第五代(5th generation，5G)通信***中。与低频相比，毫米波信号在大气传播中的衰减急剧增加，需利用大规模天线阵列形成高增益的定向窄波束(beam)来弥补路径损耗，从而保证通信的可靠性。传统数字波束成形结构由于超高的硬件复杂度，无法直接应用于毫米波***中，因此毫米波引入了模拟波束赋形技术，并在射频前端实现。在毫米波***中，接收端可以通过波束管理策略，确定服务波束对连接(beam pair link，BPL)，服务波束对连接可对应于服务波束对，服务波束对中可包括发送端的服务发波束和接收端的服务收波束，发送端可通过服务发波束向接收端的服务收波束发送目标信号。
现有波束管理策略中，比如接收端包括M个收波束，发送端包括N个发波束，M、N均为正整数，接收端可固定M个收波束中的一个收波束，将该收波束依次与N个发波束建立波束对，波束对中的收波束测量发波束的参考信号得到测量结果。随后接收端再固定M个收波束中的另一个收波束，将该另一个收波束依次与N个发波束建立波束对。如此，接收端可获取到M×N个波束对分别对应的信号质量。接收端可将M×N个波束对中对应信号质量最好的波束对作为服务波束对，并向发送端指示该服务波束对。
接收端需要获取M×N个波束对分别对应的信号质量之后，才能确定出服务波束对，该持续时长大概需要几百毫秒。如此，可能在接收端向发送端指示该服务波束对时，该服务波束对已不再是对应于信号质量最好的波束对，接收端不能较好的实现波束跟踪。
发明内容
本申请提供一种确定发波束的方法及装置，用于接收端确定出信号质量较好的波束对，作为服务波束对，有助于接收端实现较好的波束跟踪。
第一方面，本申请提供一种确定发波束的方法，该方法可由接收端执行，其中，接收端可以是终端或无线接入网设备，或者还可以是终端中的模块例如芯片，或者还可以是无线接入网设备中的模块例如芯片。
在一种可能的实现方式中，获取第一测量信息，第一测量信息是在第一测量周期中、通过第一收波束测量来自于N个发波束的参考信号得到的，第一测量信息用于确定目标时刻的第一收波束对应的目标测量信息，目标时刻在第一测量周期之后，N为正整数；根据目标测量信息，发送指示信息，其中，该指示信息可用于指示K个目标发波束，该K个目标发波束是根据在目标时刻、N个发波束对应的信号质量排序确定，K为正整数且小于或等于N。
上述技术方案中，接收端可获取第一测量信息，第一测量信息即接收端的最优收波束对应的测量信息，接收端可根据第一测量信息预测未来时刻(即目标时刻)对应的测量信息，即通过最优收波束对应的测量信息预测目标时刻对应的测量信息，通过该方式，接收 端可较好的确定出目标时刻对应的信号质量最好的波束对，以作为服务波束对，有助于接收端实现较好的波束跟踪，进而有助于降低断链风险。
在一种可能的实现方式中，第一测量信息用于确定目标时刻的第一收波束对应的目标测量信息，包括：根据第一测量信息，确定第一发射角；其中，在第一测量周期中，第一发射角对应的信号质量最高；根据第一测量信息和第一发射角，确定目标测量信息。
上述技术方案中，接收端根据第一测量信息确定最优收波束对应第一发射角，其中第一发射角可以理解为最优收波束可测量到的最优发射角，从而接收端可以根据第一测量信息和最优发射角，预测目标测量信息。本方案中，接收端可通过最优发射角预测目标测量信息，有助于提高目标测量信息的准确性。
在一种可能的实现方式中，根据第一测量信息，确定第一发射角，包括：根据第一测量信息和波束信息集合，确定第一发射角；其中，波束信息集合中包括N个发波束对应的N个发射角、N个发波束中任两个发波束之间的相对位置关系中的一项或多项。
在一种可能的实现方式中，还包括：接收第一发波束的波束信息，第一发波束的波束信息中包括第一发波束的发射角、第一发波束与第二发波束之间的相对位置关系中的一项或多项，第一发波束是N个发波束中的一个，第二发波束是N个发波束中与第一发波束相邻的一个或多个发波束；或，接收波束信息集合。
上述技术方案中，接收端根据第一测量信息，以及波束信息集合中包括的N个发波束对应的N个发射角、N个发波束中任两个发波束之间的相对位置关系中的一项或多项，确定第一发射角，如此提供至少三种接收端确定第一发射角的实现方式。
其中，接收端通过第一测量信息和N个发波束对应的N个发射角，确定第一发射角，有助于更准确的确定出第一发射角。
在一种可能的实现方式中，获取第一测量信息，包括：在第二测量周期中，通过第二收波束测量参考信号，得到第二测量信息；获取第二测量周期之前的M-1个测量周期对应的测量信息，将第二测量信息，以及M-1个测量周期对应的测量信息组成M个测量信息；M-1个测量周期中任一个测量周期对应的测量信息是测量周期对应的收波束测量参考信号得到的；从M个测量信息中选择第一测量信息，其中，在所述M个测量信息指示的M个收波束对应的M个信号质量中，所述第一收波束测量对应的信号质量最高。
上述技术方案中，接收端在第二测量周期(即当前测量周期)测量参考信号得到第二测量信息之后，接收端可根据第二测量信息，以及M-1个测量周期对应的测量信息组成M个测量信息，其中该M个测量信息分别与接收端的M个收波束对应，进而接收端可从M个测量信息中确定出信号质量最好的第一测量信息，即最优收波束对应的测量信息。
在一种可能的实现方式中，根据第一测量信息和第一发射角，确定目标测量信息，包括：根据第一发射角，预测目标时刻的目标发射角，目标时刻与第一测量周期的结束时刻相差第一时延；根据目标发射角和第一测量信息，确定目标测量信息；其中，第一时延中包括周期时延、处理时延中的一项或多项，周期时延中包括L个测量周期，L根据第一测量周期和第二测量周期确定，L为正整数。
上述技术方案中，接收端可充分考虑目标时刻与第一测量周期的结束时刻之间的时延，从而可准确预测出目标测量信息，进一步准确得到服务波束对，有助于实现较好的波束跟踪，从而有助于降低断链风险。
在一种可能的实现方式中，目标测量信息中包括n个发波束的测量信息，n个发波束 是根据N个发波束中、历史最优发波束与其他发波束之间的相对位置关系确定的；历史最优发波束是第一测量周期之前的、N个发波束中对应于最高信号质量的发波束，n为正整数且小于或等于N。
上述技术方案中，发送端中包括N个发波束，接收端根据发送端的N个发波束中、历史最优发波束与其他发波束之间的相对位置关系确定n个发波束，进而预测n个发波束的测量信息，其中n为正整数且小于或等于N，而无需预测发送端中全部发波束的测量信息，如此可在准确得到服务波束对的前提下，降低接收端的计算量。
在一种可能的实现方式中，目标测量信息是参考信号接收功率(reference signal received power，RSRP)；根据目标测量信息，发送指示信息，包括：选择目标测量信息中、RSRP从大到小排序中的前K个RSRP，前K个RSRP对应于K个目标发波束；发送K个目标发波束的指示信息，目标发波束的指示信息中包括目标发波束对应的RSRP和发波束的标识。
上述技术方案中，目标测量信息可以是RSRP，接收端和发送端可分别是终端和接入网设备，终端可通过本方案确定服务波束对，并通过该确定出的服务波束对获取到较大的增益。
第二方面，本申请实施例提供一种通信装置，该装置具有实现上述第一方面或第一方面的任一种可能的实现方式中的功能，该装置可以是接收端，接收端可以为终端，或者终端中包括的芯片，该接收端还可以为无线接入网设备，或者无线接入网设备中包括的芯片。
上述通信装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现，硬件或软件包括一个或多个与上述功能相对应的模块或单元或手段(means)。
在一种可能的实现方式中，该装置的结构中包括处理模块和收发模块，其中，处理模块被配置为支持该装置执行上述第一方面或第一方面的任一种实现方式中的功能。收发模块用于支持该装置与其他通信设备之间的通信，例如该装置为终端时，可接收来自无线接入网设备的波束信息集合。该通信装置还可以包括存储模块，存储模块与处理模块耦合，其保存有装置必要的程序指令和数据。作为一种示例，处理模块可以为处理器，收发模块可以为收发器，存储模块可以为存储器，存储器可以和处理器集成在一起，也可以和处理器分离设置。
在另一种可能的实现方式中，该装置的结构中包括处理器，还可以包括存储器。处理器与存储器耦合，可用于执行存储器中存储的计算机程序指令，以使装置执行上述第一方面或第一方面的任一种可能的实现方式中的方法。可选地，该装置还包括通信接口，处理器与通信接口耦合。当装置为终端时，该通信接口可以是收发器或输入/输出接口；当该装置为终端中包含的芯片时，该通信接口可以是芯片的输入/输出接口。可选地，收发器可以为收发电路，输入/输出接口可以是输入/输出电路。
第三方面，本申请实施例提供一种芯片***，包括：处理器和存储器，处理器与存储器耦合，存储器用于存储程序或指令，当程序或指令被处理器执行时，使得该芯片***实现上述第一方面或第一方面的任一种可能的实现方式中的方法。
可选地，该芯片***还包括接口电路，该接口电路用于交互代码指令至处理器。
可选地，该芯片***中的处理器可以为一个或多个，该处理器可以通过硬件实现也可以通过软件实现。当通过硬件实现时，该处理器可以是逻辑电路、集成电路等。当通过软件实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现。
可选地，该芯片***中的存储器也可以为一个或多个。该存储器可以与处理器集成在一起，也可以和处理器分离设置。示例性的，存储器可以是非瞬时性处理器，例如只读存储器ROM，其可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上。
第四方面，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序或指令，当该计算机程序或指令被执行时，使得计算机执行上述第一方面或第一方面的任一种可能的实现方式中的方法。
第五方面，本申请实施例提供一种计算机程序产品，当计算机读取并执行计算机程序产品时，使得计算机执行上述第一方面或第一方面的任一种可能的实现方式中的方法。
第六方面，本申请实施例提供一种通信***，该通信***中可包括发送端和接收端。接收端可用于执行上述第一方面或第一方面的任一种可能的实现方式中的方法。
上述第二方面至第六方面中任一方面可以达到的技术效果均可以参照上述第一方面中有益效果的描述，此处不再重复赘述。
附图说明
图1为本申请提供的一种通信***架构示意图；
图2为本申请提供的一种收发波束的示意图；
图3为本申请提供的一种确定服务波束对的流程示意图；
图4为本申请提供的一种确定发波束的方法的流程示意图；
图5为本申请提供的一种时序示意图；
图6为本申请提供的一种终端预测目标测量信息的流程示意图；
图7为本申请提供的一种终端确定发射角的流程示意图；
图8为本申请提供的一种波束邻域关系的示意图；
图9为本申请提供的一种TCI状态的格式示意图；
图10为本申请提供的再一种TCI状态的格式示意图；
图11为本申请提供的一种预测目标发射角的示意图；
图12为本申请提供的一种通信装置的结构示意图；
图13为本申请提供的另一种通信装置的结构示意图。
具体实施方式
图1是本申请的实施例应用的通信***1000的架构示意图。如图1所示，该通信***包括无线接入网100和核心网200，可选的，通信***1000还可以包括互联网300。其中，无线接入网100可以包括至少一个无线接入网设备(如图1中的110a和110b)，还可以包括至少一个终端(如图1中的120a-120j)。终端通过无线的方式与无线接入网设备相连，无线接入网设备通过无线或有线方式与核心网连接。核心网设备与无线接入网设备可以是独立的不同的物理设备，也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端和终端之间以及无线接入网设备和无线接入网设备之间可以通过有线或无线的方式相互连接。图1只是示意图，该通信***中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图1中未画出。
无线接入网设备可以是基站(base station)、演进型基站(evolved NodeB，eNodeB)、 发送接收点(transmission reception point，TRP)、第五代(5th generation，5G)移动通信***中的下一代基站(next generation NodeB，gNB)、第六代(6th generation，6G)移动通信***中的下一代基站、未来移动通信***中的基站或无线保真(wireless fidelity，WiFi)***中的接入节点等；也可以是完成基站部分功能的模块或单元，例如，可以是集中式单元(central unit，CU)，也可以是分布式单元(distributed unit，DU)。这里的CU完成基站的无线资源控制协议和分组数据汇聚层协议(packet data convergence protocol，PDCP)的功能，还可以完成业务数据适配协议(service data adaptation protocol，SDAP)的功能；DU完成基站的无线链路控制层和介质访问控制(medium access control，MAC)层的功能，还可以完成部分物理层或全部物理层的功能，有关上述各个协议层的具体描述，可以参考第三代合作伙伴计划(3rd generation partnership project，3GPP)的相关技术规范。无线接入网设备可以是宏基站(如图1中的110a)，也可以是微基站或室内站(如图1中的110b)，还可以是中继节点或施主节点等。本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。为了便于描述，下文以基站作为无线接入网设备的例子进行描述。
终端也可以称为终端设备、用户设备(user equipment，UE)、移动台、移动终端等。终端可以广泛应用于各种场景，例如，设备到设备(device-to-device，D2D)、车物(vehicle to everything，V2X)通信、机器类通信(machine-type communication，MTC)、物联网(internet of things，IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端可以是手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、无人机、直升机、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的实施例对终端所采用的具体技术和具体设备形态不做限定。
基站和终端可以是固定位置的，也可以是可移动的。基站和终端可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对基站和终端的应用场景不做限定。
基站和终端之间、基站和基站之间、终端和终端之间可以通过授权频谱进行通信，也可以通过免授权频谱进行通信，也可以同时通过授权频谱和免授权频谱进行通信；可以通过6千兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过6GHz以上的频谱进行通信，还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对无线通信所使用的频谱资源不做限定。
在本申请的实施例中，基站的功能也可以由基站中的模块(如芯片)来执行，也可以由包含有基站功能的控制子***来执行。这里的包含有基站功能的控制子***可以是智能电网、工业控制、智能交通、智慧城市等上述应用场景中的控制中心。终端的功能也可以由终端中的模块(如芯片或调制解调器)来执行，也可以由包含有终端功能的装置来执行。
又可以理解，图1所示的通信***中包括发送端和接收端，其中发送端可向接收端发送信号/信息。通常情况下，发送端可包括一个或多个发波束，接收端中可包括一个或多个收波束。参照图2示例性示出的波束示意图，发送端和接收端分别是基站和终端，其中发送端(即基站)可包括64个发波束(可表示为发波束0至发波束63)，64个发波束中每个发波束可对应于自己的发射角。接收端(即终端)可包括4个收波束(可表示为收波束0至收波束3)，4个收波束中的每个收波束可对应于自己的接收角。
5G NR***中引入更高频率的FR2波段，FR2频段的频率范围为24.25GHz-52.6GHz，FR2频段又可被称为是毫米波(mmWave)。将毫米波与模拟波束赋形结合起来，可以更好 的实现发送端和接收端之间的信号传输。接收端可以通过波束管理策略，确定服务波束对，服务波束对中包括发送端的服务发波束和接收端的服务收波束，发送端可通过服务发波束向接收端的服务收波束发送目标信号。
而由于接收端比如手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、无人机、直升机、飞机、轮船、机器人、机械臂、智能家居设备等，可能具有较强的移动性，接收端需要按照波束管理策略尽可能准确地确定出服务波束对，以提高接收端从发送端处接收目标信号的信号质量。
结合图2示例性示出的波束示意图，如下提供一种接收端确定服务波束对的流程，该流程中发送端和接收端可分别是图2中的基站和终端，基站可包括发波束0至发波束63，终端可包括收波束0至收波束3。其中，收波束0至收波束3中的任一个收波束均可以分别与发波束0至发波束63组成波束对，即该终端中的收波束和基站中的发波束可组成256个波束对(可称为波束对集合)。
可具体参见图3示例性示出的终端确定服务波束对的流程示意图：
步骤301，基站向终端发送参考信号，其中该参考信号具体可以是下行参考信号，比如同步信号块(synchronization signal block，SSB)、信道状态信息参考信号(channel state information-reference signal，CSI-RS)。
步骤302，终端测量来自基站的参考信号，根据参考信号确定测量信息。
终端可先固定收波束0，将收波束0与发波束0组成波束对，通过收波束0测量发波束0发送的参考信号，得到(收波束0、发波束0)对应的测量值，测量值可用于指示收波束0与发波束0之间的信道质量。进一步的，终端可将收波束0与发波束1组成波束对，得到(收波束0、发波束1)对应的测量值。如此，终端可得到(收波束0、发波束0)，(收波束0、发波束1)，……，(收波束0、发波束63)分别对应的测量值(共计64个测量值)，该64个测量值可组成收波束0对应的测量信息。
在本申请中，可以将接收端通过一个收波束依次测量全部发波束发送的参考信号的时段，称为是一个测量周期，或发射周期，或发波束的扫描周期等。比如上述例子中，终端通过收波束0依次测量发波束0至发波束63发送的参考信号的时段，即为一个测量周期。
随后终端可继续通过收波束0、收波束1、收波束2、收波束3的顺序依次测量参考信号(其中收波束3之后轮回至收波束0)，以此类推，即可实现终端通过各收波束测量基站通过发波束发送的参考信号，以得到收波束对应的测量信息。
在本申请中，终端通过其包含的所有收波束测量参考信号的一个测量循环中，终端的多个收波束分别对应的测量信息可组成测量信息集合，比如上述例子的一个测量循环中，收波束0、收波束1、收波束2、收波束3分别对应的测量信息即组成测量信息集合。
步骤303，终端根据测量信息，确定备选波束对。
在一种可能的实现方式中，终端在基于当前测量周期确定出测量信息之后，可根据终端中多个收波束的测量顺序和当前测量周期对应的收波束，来获取当前测量周期对应的收波束之前的其他收波束对应的测量信息，并将这些测量信息组成测量信息集合。
比如在步骤302中，终端通过收波束0测量参考信号得到收波束0对应的测量信息，终端可继续获取收波束0之前的，即收波束3、收波束2和收波束1分别对应的测量信息，将这些测量信息组成测量信息集合。
进一步的，终端可以根据测量信息集合，从波束对集合中选择出信号质量符合要求的 波束对作为备选波束对。示例性的，当备选波束对为一个波束对时，该备选波束对可以是测量信息集合中信号质量最好的波束对。
步骤304，终端向基站发送备选波束对的标识和测量值。
备选波束对的标识可用于指示备选波束对中的发波束和收波束，其中备选波束对的标识可包括备选波束对中发波束的标识和收波束的标识。示例性的，备选波束对为(收波束1、发波束1)，那么备选波束对的标识中可包括收波束1的标识和发波束1的标识。
步骤305，基站根据备选波束对的标识和测量值，确定服务波束对。
其中，该服务波束对是用于基站和终端之间传输目标信号的波束对。可选的，基站可根据备选波束对的标识和测量值，结合之前测量周期对应的服务波束对，确定当前测量周期对应的、用于传输目标信号的服务波束对。
其中，备选波束对可以是一个或多个。在备选波束对是一个时，该服务波束对可以与备选波束对相同或不同；在备选波束对是多个时，该服务波束对可以是多个备选波束对中的一个，或者也可以不包含于该多个备选波束对中。
基站可基于确定出的服务波束对切换用于发送目标信号的服务发波束。
步骤306，基站向终端发送服务波束对的标识。
示例性的，基站可向终端发送介质访问控制层控制单元(medium access control-control element，MAC-CE)，该MAC-CE中包括服务波束对的标识，该MAC-CE可用于指示终端切换收波束，该切换之后的收波束(即服务收波束)可用于终端接收来自基站的服务发波束发送的目标信号。
步骤307，基站向终端发送目标信号。
上述终端根据测量信息集合选择备选波束对的技术方案中，可能存在选择不准确的问题。举例来说，终端将收波束0对应的测量信息，以及收波束0之前的，即收波束3、收波束2和收波束1分别对应的测量信息组成测量信息集合，在该测量信息集合中选择出的备选波束对为(收波束1、发波束1)。而在当前测量周期中、信号质量符合要求的波束对可能是(收波束1、发波束2)。而由于当前测量周期的收波束为收波束0(而非收波束1)，所以终端无法测量到(收波束1、发波束2)对应的信号质量，即无法确定出该备选波束对(收波束1、发波束2)。终端只有再次轮询到该(收波束1、发波束2)之后，才能从对应的测量信息集合中选择出备选波束对(收波束1、发波束2)。
如此，为了实现终端快速且准确的确定出备选波束对，本申请提供一种确定发波束的方法，该方法可通过发送端和接收端执行。
本申请中，发送端和接收端可分别是图1或图2中的基站和终端，相应的，基站可以向终端发送下行信号，其中下行信号可以是物理下行控制信道(physical downlink control channel，PDCCH)、下行共享物理信道(physical downlink shared channel，PDSCH)或下行参考信号(比如SSB、CSI-RS)中的一个或多个。
发送端和接收端还可分别是图1中的终端和基站，相应的，终端可以向基站发送上行信号，其中上行信号可以是物理上行控制信道(physical uplink control channel，PUCCH)、物理上行共享信道(physical uplink shared channel，PUSCH)或上行参考信号(比如侦听参考信号(sounding reference signal，SRS))中的一个或多个。
发送端和接收端还可分别是图1中的两个终端(可称为终端1和终端2)，终端1可以向终端2发送侧行信号，其中侧行信号可以是物理侧行链路控制信道(physical sidelink  control channel，PSCCH)、物理侧行链路共享信道(physical sidelink shared channel，PSSCH)或侧行参考信号(比如CSI-RS、相位跟踪参考信号(phase tracking reference signal，PT-RS)、解调参考信号(demodulation reference signal，DM-RS)等)中的一个或多个。
为方便描述，本申请中以发送端和接收端分别为基站和终端来举例说明，进一步的，下面描述中基站的发波束均可简称为是发波束，终端的收波束均可简称为是收波束。
结合图4示例性示出的终端确定发波束的方法的流程示意图解释：
步骤401，终端获取第一测量信息。其中，第一测量信息是终端在第一测量周期中、通过第一收波束测量来自于N个发波束的参考信号得到的，第一测量信息用于指示目标时刻的第一收波束对应的目标测量信息，目标时刻在第一测量周期之后。
本申请中，基站可以向终端发送参考信号，参考信号比如SSB或CSI-RS。进一步的，基站中可包括N个发波束，N为正整数，基站可按照预设顺序依次通过N个发波束向终端发送参考信号，N个发波束可对应于一个测量周期。
结合图2示出的例子，基站中包括64个发波束(即N＝64)，基站可以依次通过发波束0至发波束63向终端发送参考信号。可以理解，基站在通过发波束0向终端发送参考信号之后，可继续通过发波束2向终端发送参考信号；基站在通过发波束63向终端发送参考信号之后，可继续通过发波束0向终端发送参考信号。
终端可包括M个收波束，该M个收波束与M个测量周期相对应，M为正整数。在任一个测量周期中，终端可通过该测量周期对应的收波束分别测量N个发波束发送的参考信号，得到该测量周期对应的测量信息。终端可以获取到M个测量周期分别对应的M个测量信息，该M个测量信息可组成一个测量信息集合，该一个测量信息集合可对应于一个测量周期集合，也即一个测量周期集合中包括M个测量周期。
结合图2示出的例子，终端中包括4个收波束(即M＝4)，终端可以按照收波束0、收波束1、收波束2、收波束3的顺序，分别测量64个发波束(即发波束0至发波束63)发送的参考信号。表1为本申请示例性提供的一种终端测量参考信号的对应关系。
如表1中：在T0中，终端通过收波束0测量64个发波束的参考信号，得到收波束0对应的测量信息0；在T1中，终端通过收波束1测量64个发波束的参考信号，得到收波束1对应的测量信息1；在T2中，终端通过收波束2测量64个发波束的参考信号，得到收波束2对应的测量信息2；在T3中，终端通过收波束3测量64个发波束的参考信号，得到收波束3对应的测量信息3。
如此，终端可获取到4个收波束分别在4个测量周期中的测量信息，其中，测量周期T0至T3可共同组成一个测量周期集合，测量信息0、测量信息1、测量信息2和测量信息3可共同组成一个测量信息集合。
表1
测量周期 收波束 64个发波束 测量信息
T0 收波束0 发波束0至发波束63 测量信息0
T1 收波束1 发波束0至发波束63 测量信息1
T2 收波束2 发波束0至发波束63 测量信息2
T3 收波束3 发波束0至发波束63 测量信息3
进一步的，终端可以循环测量参考信号，即在T3之后，终端还可以在T4中，通过收 波束0测量64个发波束的参考信号，得到收波束0对应的测量信息4；以及在T5中，通过收波束1测量64个发波束的参考信号，得到收波束1对应的测量信息5，以此类推。
表2为本申请示例性提供的再一种终端测量参考信号的对应关系。表2中，不仅可以把T0至T3认为是一个测量周期集合，还可以把T1至T4、或T2至T5等认为是一个测量周期集合，可以理解，4个连续测量周期可组成一个测量周期集合，且该4个连续测量周期对应的4个测量信息即组成一个测量信息集合。
表2
测量周期 收波束 64个发波束 测量信息
T0 收波束0 发波束0至发波束63 测量信息0
T1 收波束1 发波束0至发波束63 测量信息1
T2 收波束2 发波束0至发波束63 测量信息2
T3 收波束3 发波束0至发波束63 测量信息3
T4 收波束0 发波束0至发波束63 测量信息4
T5 收波束1 发波束0至发波束63 测量信息5
T6 收波束2 发波束0至发波束63 测量信息6
T7 收波束3 发波束0至发波束63 测量信息7
…… …… …… ……
本申请中，针对于任一个收波束，终端可通过收波束测量N个发波束的参考信号，得到N个发波束分别对应的测量值，其中该测量值比如是参考信号接收功率(reference signal received power，RSRP)或信噪比(signal noise ratio，SNR)等。终端可根据N个发波束分别对应的测量值，确定该收波束的测量信息。示例性的，终端可以将该N个发波束分别对应的测量值作为该收波束的测量信息，即该收波束的测量信息中可包括N个发波束分别对应的测量值。再示例性的，终端可确定N个发波束分别对应的测量值的平均值、最大值、最小值、中位值中的一个或多个，以作为该收波束的测量信息。
终端可根据M个测量信息(即一个测量信息集合)，获取第一测量信息。示例性的，M个测量信息中的每个测量信息可用于表征对应收波束接收参考信号的信号质量，或者用于表征对应收波束与基站之间的信道质量。终端可根据M个测量信息，确定出用于指示信号质量最好的测量信息，以作为第一测量信息。本申请中，可以将第一测量信息对应的收波束称为是第一收波束，第一测量信息对应的测量周期称为是第一测量周期。
示例性的，在测量信息中包括N个测量值的情况下，终端可根据N个测量值，确定N个测量值的平均值、最大值、最小值、中位值中的一个或多个，以作为该测量信息对应的评价指标。进而终端可根据M个测量信息分别对应的评价指标，确定出第一测量信息。结合表1的例子，终端获取测量信息0、测量信息1、测量信息2、测量信息3，其中每个测量信息中可包括64个测量值，终端可针对于每个测量信息，确定该测量信息中64个测量值的平均值，然后将该平均值作为测量信息的评价指标。进而终端根据4个测量信息分别对应的平均值，确定出第一测量信息，比如测量信息1对应的平均值在4个测量信息分别对应的平均值中最大，则该测量信息1即为第一测量信息。
终端在获取到第一测量信息之后，可以根据第一测量信息，预测目标时刻的目标测量信息。本申请中，目标时刻具体可以是基站向终端发送目标信号的时刻，示例性的，目标 时刻可以是与第一测量周期的结束时刻相差第一时延。第一时延中可包括处理时延和周期时延中的一个或多个。
处理时延具体可包括终端处理时延和基站处理时延中的一个或多个，其中，终端处理时延可以是上述图3方法实施例中，终端根据测量信息集合确定备选波束对，并将备选波束对的标识上报给基站所导致的时延，终端处理时延可以与终端能力和协议规定相关。基站处理时延可以是上述图3方法实施例中，基站接收到备选波束对的标识之后，经滤波、计算、MAC控制单元(MAC control element，MAC CE)通知等流程，将服务波束对的标识通知给终端所导致的时延，基站处理时延可以与基站能力和协议规定相关。
周期时延可包括L个测量周期，L的取值可以是终端根据第一测量周期和第二测量周期确定的，L为正整数。如下先解释说明终端如何确定周期时延：
预先指出的是，终端在从M个测量信息中确定第一测量信息的实现方式中，M个测量信息、M个测量周期以及M个收波束均为一一对应关系。结合表2中例子，测量周期T0、收波束0、测量信息0三者对应，测量周期T1、收波束1、测量信息1三者对应等。
终端在第二测量周期中通过第二收波束测量基站的参考信号，该第二测量周期可理解为，终端当前测量参考信号所在的测量周期，第二测量周期又可称为当前测量周期，第二收波束即为终端当前测量参考信号所在的测量周期对应的收波束。终端在获取到第二测量周期对应的第二测量信息之后，可以获取到第二测量周期之前的M-1个测量周期分别对应的测量信息，从而组成M个测量信息(即测量信息集合)，然后终端从该M个测量信息中选择第一测量信息。如此，第一测量周期可以与第二测量周期相同或不同，相应的，第一收波束可以与第二收波束相同或不同。
结合表2举例，比如第二测量周期为T4，终端在T4中获取到测量信息4，随后终端获取T4之前的三个测量周期(即T1、T2、T3)分别对应的测量信息，分别为测量信息1、测量信息2和测量信息3。终端可以根据测量信息1、测量信息2、测量信息3和测量信息4，确定第一测量信息，比如第一测量信息是测量信息4，那么第一测量周期为T4，第一测量周期与第二测量周期相同，第一收波束与第二收波束相同。
在第一测量周期与第二测量周期相同的情况下，第一时延可不包括周期时延，即第一时延中包括处理时延，目标时刻与第一测量周期的结束时刻相差处理时延。
在另外一个例子中，第二测量周期为T4，终端在T4中得到测量信息4，随后终端可根据测量信息1、测量信息2、测量信息3、测量信息4，确定第一测量信息，比如第一测量信息是测量信息1，那么第一测量周期为T1。第一测量周期与第二测量周期不同，第一收波束与第二收波束不同。具体可参见图5示例性示出的一种时延时序图，第一测量周期与第二测量周期相差的周期时延中包括3个测量周期(T2、T3和T4)。即目标时刻与第一测量周期的结束时刻之间相差第一时延，第一时延具体可包括处理时延和3个测量周期。
也可以理解，周期时延是终端根据第二测量周期与第一测量周期确定的。示例性的，终端根据第二测量周期的结束时刻与第一测量周期的结束时刻确定周期时延，比如终端将第二测量周期的结束时刻与第一测量周期的结束时刻的差值作为周期时延。
又示例性的，终端根据第二测量周期的开始时刻与第一测量周期的开始时刻确定周期时延，比如终端将第二测量周期的开始时刻与第一测量周期的开始时刻的差值作为周期时延。当然，本申请还可以通过其他实现方式，实现终端根据第一测量周期和第二测量周期确定周期时延，此处不再一一举例。
如此，终端可根据第一测量信息和第一时延，预测目标时刻的测量信息，具体可结合图6示例性示出的终端预测目标测量信息的流程示意图说明。
步骤601，终端根据第一测量信息和第一时延，确定第一发射角。
其中，基站的N个发波束可分别对应有各自的发射角，发波束的发射角即基站通过该发波束向终端发射信号的离开角(angle of departure，AoD)，也即，基站的N个发波束对应于N个发射角。结合表3中对应关系解释说明发射角，N个发波束的标识可分别表示为#0、#1、……、#N-1，N个发波束对应的N个发射角可分别表示为θ 0、θ 1、……、θ N-1。其中，#0对应于发射角θ 0，即发波束0的发射角为θ 0，#1对应于发射角θ 1，即发波束1的发射角为θ 1，等等。
表3
发波束的标识 发波束的发射角
#0 θ 0
#1 θ 1
…… ……
#N-1 θ N-1
发射角可进一步包括有高度角(elevation)和方位角(azimuth)，其中高度角为发射方向线与水平面之间的夹角，方位角为从某点的指北方向线起，依顺时针方向到发射方向之间的水平夹角。比如表4中，发射角θ 0中包括高度角0°和方位角7°，θ 1包括高度角-7°和方位角7°等。也可以理解，每个发波束可对应有自己的高度角和方位角。
表4
发射角 高度角 方位角
θ 0 0° 7°
θ 1 -7° 7°
…… …… ……
在第一测量周期中，第一发射角对应的信号质量最高，可以理解，第一发射角为终端根据第一测量信息确定的基站发射信号的最优发射角，该第一发射角可以是N个发射角中的一个，或者位于某两个相邻发射角的区间中。结合表3中例子，第一发射角可以等于N个发射角中的某个值，比如第一发射角等于θ 31；第一发射角还可位于某两个相邻发射角的区间中，比如第一发射角位于θ 31和θ 32之间。其中，信号质量最高又可称为信号质量最优。
一种实现方式中，终端可预设第一模型，该第一模型是基于历史数据训练得到的，历史数据中包括多个测量信息以及每个测量信息对应的最优发射角。每个测量信息中、最优发射角对应的信号质量优于或等同于基站的N个发射角对应的信号质量。终端在确定第一发射角时，可将第一测量信息输入至第一模型中，从而第一模型输出第一测量信息对应的最优发射角(即第一发射角)。
在另一种实现方式中，终端可根据第一测量信息和波束信息集合，确定第一发射角。具体可参见图7示例性示出终端确定发射角的流程示意图：
步骤701，终端获取波束信息集合。
如下先对波束信息集合解释说明：
波束信息集合中可包括N个发波束的波束信息，发波束的波束信息可包括该发波束的发射角、该发波束与其他发波束之间的相对位置关系中的一个或多个。
或者也可以理解，波束信息集合中可包括N个发波束分别对应的N个发射角、波束邻域关系中的一项或多项，其中，波束邻域关系可用于指示N个发波束中任两个发波束之间的相对位置关系，或者可用于指示N个发波束中任一个发波束的相邻发波束。
对于N个发波束中的任一个发波束，该发波束的相邻发波束可包括位于该发波束的左方的一个发波束，右方的一个发波束，上方的一个发波束，下方的一个发波束(共计4个发波束)。如图8为本申请示例性提供的一种波束邻域关系的示意图，按照左、右、上、下的顺序，发波束17的相邻发波束分别为发波束16、发波束18、发波束1、发波束33。又或者，可以进一步增加位于该发波束的左上方的一个发波束，右上方的一个发波束，左下方的一个发波束，右下方的一个发波束(共计8个发波束)，作为该发波束的相邻发波束。如图8中例子，按照左、右、上、下、左上、右上、左下、右下的顺序，发波束17的相邻发波束分别为发波束16、发波束18、发波束1、发波束33、发波束0、发波束2、发波束32、发波束34。当然，本申请中还可以根据其他形式确定发波束的相邻发波束。
本申请中，波束信息集合可以是由基站指示给终端的。如下示例性提供基站向终端指示波束信息集合的两种方式，其中方式一可以是终端接收波束信息集合；方式二可以是终端接收针对于该第一发波束的波束信息。该两种方式具体解释如下：
方式一、终端接收波束信息集合。
情况1，波束信息集合中包括N个发射角。
在一个实现方式中，波束信息集合包括N个发波束中、每个发波束的标识和对应的发射角。结合表3中例子，波束信息集合中包括标识#0和发射角θ 0，标识#1和发射角θ 1等。进一步的，每个发射角可包括高度角和方位角，也可以理解，波束信息集合中包括N个发波束中、每个发波束的标识和对应的高度角和方位角。结合表4中例子，波束信息集合中包括标识#0、高度角0°和方位角7°，标识#1、高度角-7°和方位角7°等。
在另一个实现方式中，波束信息集合包括N个发波束中、每个发波束的发射角，该N个发射角是按照N个发波束的标识顺序排列的，终端可以根据该按顺序排列的N个发射角，确定发射角与发波束的对应关系。比如，波束信息集合中按顺序排列的N个发射角具体为θ 0，θ 1，θ 2，……，θ N-1，则终端可以确定波束信息集合中的第1个发射角(即θ 0)是发波束0对应的发射角，第2个发射角(即θ 1)是发波束1对应的发射角等。
情况2，波束信息集合中包括波束邻域关系。
在一个实现方式中，波束信息集合中包括每个发波束的标识，以及该发波束的相邻发波束的标识。结合图8中的波束邻域关系，本申请示例性提供的波束信息集合可参照表5所示，比如发波束1的标识为#1，发波束1对应的相邻发波束的标识按照左、右、上、下、左上、右上、左下、右下的顺序分别为#0、#2、-、#17、-、-、#16、#18，其中“-”可表示为在对应的位置上没有相邻发波束。
表5
发波束的标识 相邻发波束的标识
#1 #0、#2、-、#17、-、-、#16、#18
#17 #16、#18、#1、#33、#0、#2、#32、#34
…… ……
情况3，波束信息集合中包括N个发射角和波束邻域关系。
该方式具体可参见情况1和情况2中的描述。进一步的，N个发射角和波束邻域关系可以是承载于同一条消息中，或者承载于不同消息中。
该实现方式中，终端可在通过第一收波束测量基站的N个发波束(即全部发波束)的参考信号之前或之后，接收来自基站的该波束信息集合。当然，终端还可以在第一收波束测量基站的N个发波束中的任一个发波束的参考信号的同时，接收来自基站的该波束信息集合。在一个具体实现中，终端可在接入至小区时，接收来自基站的该波束信息集合。示例性的，基站可广播波束信息集合，相应的，当终端接入至小区时，终端可接收到基站广播的波束信息集合。或者，终端在接入至小区时，终端向基站发送波束信息集合的获取请求，进而终端可接收到基站响应于该获取请求而发送的波束信息集合。
波束信息集合可以承载于无线资源控制(radio resource control，RRC)信令中，或承载于下行控制信息(downlink control information，DCI)中。
方式二、终端接收第一发波束的波束信息。
其中第一发波束的波束信息中包括第一发波束的发射角、第一发波束的邻域关系中的一项或多项。第一发波束的邻域关系具体可以是第一发波束与第二发波束之间的相对位置关系，第二发波束是N个发波束中与第一发波束相邻的一个或多个发波束。
情况1，第一发波束的波束信息中包括第一发波束的发射角。
第一发波束的波束信息中包括第一发波束的标识和发射角。结合表3中的对应关系举例，第一发波束比如是发波束0，那么第一发波束的波束信息中可包括标识#0和发射角θ 0。
情况2，第一发波束的波束信息中包括第一发波束的波束邻域关系。
第一发波束的波束信息中包括第一发波束的标识和第二发波束的标识。结合图8中的波束邻域关系，比如第一发波束为发波束1，第一发波束的波束信息可参照表6所示，第一发波束的标识为#1，第二发波束可以有8个，第二发波束的标识按照左、右、上、下、左上、右上、左下、右下的顺序分别为#0、#2、-、#17、-、-、#16、#18，其中“-”可表示为在对应的位置上没有第二发波束。
表6
第一发波束的标识 第二发波束的标识
#1 #0、#2、-、#17、-、-、#16、#18
再比如，第一发波束为发波束17，第一发波束的波束信息可参照表7所示，第一发波束的标识为#17，第二发波束的标识按照左、右、上、下、左上、右上、左下、右下的顺序分别为#16、#18、#1、#33、#0、#2、#32、#34。
表7
第一发波束的标识 第二发波束的标识
#17 #16、#18、#1、#33、#0、#2、#32、#34
情况3，第一发波束的波束信息中包括第一发波束的发射角和第一发波束的波束邻域关系。该方式具体可参见情况1和情况2中的描述。进一步的，第一发波束的发射角和第一发波束的波束邻域关系可以是承载于同一条消息中，或者承载于不同消息中。
该实现方式中，终端可在通过第一收波束测量第一发波束的参考信号之前，接收来自基站的该第一发波束的波束信息。进一步的，基站可通过一条指示信息向基站指示第一发波束的参考信号和第一发波束的波束信息，基于上述情况1和情况2分别举例如下：
举例1，第一发波束的波束信息可包含于传输配置指示(transmission configuration indicator，TCI)状态(state)中，具体的，TCI状态的格式比如图9所示，TCI状态中包括AoD字段，AoD字段可用于指示第一发波束的发射角。进一步的，TCI状态中还可包括CSI-RS字段、SSB字段中的一个或多个，其中CSI-RS字段用于指示第一发波束的标识和CSI-RS资源索引，或者SSB字段用于指示第一发波束的标识和SSB资源索引。
示例性的，终端可接收来自基站的TCI状态，其中TCI状态中包括CSI-RS字段(比如是CSI-RS-ResourceId1，CSI-RS-ResourceId1可用于指示第一发波束的标识是#1)和AoD字段(比如是θ 1)，终端可根据CSI-RS-ResourceId1确定第一发波束的标识是#1，以及根据AoD字段确定第一发波束的发射角为θ 1。
举例2，第一发波束的波束信息可包含于TCI状态中，TCI状态的格式比如图10所示，TCI状态中包括邻域关系字段(图10中表示为neighb-beam)，邻域关系字段可用于指示第二发波束的标识。进一步的，TCI状态中还可包括CSI-RS字段、SSB字段的一个或多个，其中CSI-RS字段用于指示第一发波束的标识和CSI-RS资源索引，或者SSB字段用于指示第一发波束的标识和SSB资源索引。
示例性的，终端可接收来自基站的TCI状态，其中TCI状态中包括CSI-RS字段(比如是CSI-RS-ResourceId1，CSI-RS-ResourceId1可用于指示第一发波束的标识是#1)和邻域关系字段(比如#0、#2、-、#17、-、-、#16、#18)。终端可根据CSI-RS-ResourceId1确定第一发波束的标识是#1，以及根据邻域关系字段确定第二发波束的标识为#0、#2、-、#17、-、-、#16、#18，其中，这些标识是按照从左、右、上、下、左上、右上、左下、右下的顺序依次排列，“-”可表示为在对应的位置上没有第二发波束。
需要补充的是，虽然终端在通过第一收波束测量基站的第一发波束的参考信号之前，接收针对于该第一发波束的波束信息，但是在一个测量周期之后，终端即通过第一收波束测量完成基站的N个发波束的参考信号，也可获取到波束信息集合。
此外，终端不仅可以在通过第一收波束测量第一发波束的参考信号之前，接收针对于该第一发波束的波束信息，终端还可以在通过第一收波束测量第一发波束的参考信号之后，或者通过第一收波束测量第一发波束的参考信号的同时，接收来自基站的该第一发波束的波束信息，本申请不做具体限制。
此外，在基站向终端指示波束信息集合的情况中，还可包括：基站向终端指示基站的身份信息，比如基站的产品型号等，相应的，终端可根据基站的身份信息，确定基站中N个发波束分别对应的N个发射角、波束邻域关系中的一项或多项。
另外，终端还可以通过机器学习方式，自动学习到基站的波束邻域关系。示例性的，终端中包括M个收波束，则终端可根据M个收波束中的每个收波束，测量来自基站的N个发波束的参考信号，从而得到M个收波束分别对应的测量信息，该M个收波束分别对应的测量信息可组成一个测量信息集合。进一步的，终端可获取到多个测量信息集合，每个测量信息集合中包括有M个收波束分别对应的测量信息，终端可根据该多个测量信息集合，经机器学习得到基站的波束邻域关系。
步骤702，终端根据第一测量信息和波束信息集合，确定第一发射角。
本申请中，第一测量信息中可包括N个发波束分别对应的N个测量值，终端可根据该N个测量值和波束信息集合，确定第一发射角。
在波束信息集合中包括波束邻域关系的情况下：
示例1，终端可根据波束邻域关系和N个测量值，确定第一发射角。
以发送端(即基站)的各天线按照均匀线性阵列的方式排列为例，终端可根据波束邻域关系和N个测量值，求解如下关系式一，以得到第一发射角。其中均匀线性阵列可理解为，发送端的各天线呈等间距线性排布。
关系式一：
Figure PCTCN2021130673-appb-000001
其中，
Figure PCTCN2021130673-appb-000002
为第一发射角(下述关系式中第一发射角还可表示为
Figure PCTCN2021130673-appb-000003
)，P t0,…,P tN分别为N个发波束对应N个测量值。
一个具体实现中，关系式一可表示为：
Figure PCTCN2021130673-appb-000004
Figure PCTCN2021130673-appb-000005
其中，δ为待消去的中间变量，
Figure PCTCN2021130673-appb-000006
为第一发射角；
P max是N个测量值中的最大测量值，发波束max是最大测量值P max对应的发波束；
发波束(max-1)和发波束(max+1)分别为发波束max左右两边的发波束，P max-1和P max+1分别为发波束(max-1)和发波束(max+1)对应的测量值，若发波束(max-1)和发波束(max+1)有一个不存在，则取发波束max的其他相邻发波束以使得发波束(max-1)和发波束(max+1)存在。
示例2，终端可根据波束邻域关系确定N个发波束分别对应的N个发射角，进而终端根据N个发射角和N个测量值，确定第一发射角。
以发送端(即基站)的各天线按照均匀线性阵列的方式排列为例，终端可根据波束邻域关系得到各发波束的发射角。然后终端基于如下关系式二，确定第一发射角。
关系式二：
Figure PCTCN2021130673-appb-000007
其中，
Figure PCTCN2021130673-appb-000008
为第一发射角，P t0,…,P tN分别为N个发波束对应的N个测量值，θ t0,…,θ tn分别为N个发波束对应N个发射角。
一个具体实现中，关系式二可表示为：
Figure PCTCN2021130673-appb-000009
其中，
Figure PCTCN2021130673-appb-000010
Figure PCTCN2021130673-appb-000011
Figure PCTCN2021130673-appb-000012
其中，δ为待消去的中间变量，
Figure PCTCN2021130673-appb-000013
为第一发射角；
P max是N个测量值中的最大测量值，发波束max是最大测量值P max对应的发波束，θ max是发波束max对应的发射角；
发波束(max-1)和发波束(max+1)分别为发波束max左右两边的发波束，P max-1和P max+1分别为发波束(max-1)和发波束(max+1)对应的测量值，P m为P max-1和P max+1中的较大值，发波束m是P m对应的发波束，θ m是发波束m对应的发射角。
在波束信息集合中包括N个发射角的情况下，终端可根据N个发射角和第一测量信息，确定第一发射角，具体确定方式可参见上述示例2中的关系式二，不再赘述。
在波束信息集合中包括波束邻域关系和N个发射角的情况下，终端可根据波束邻域关系和N个发射角，以及第一测量信息，确定第一发射角。可有如下两种具体实现方式：
一个具体实现中，终端可先根据波束邻域关系验证N个发射角，具体的，波束邻域关系可指示N个发射角之间的大小关系，终端可根据波束邻域关系指示的N个发射角之间的大小关系来验证N个发射角是否正确。结合图8中例子解释，比如波束邻域关系中，发波束0位于发波束16的上方，则指示发波束0对应的高度角大于发波束16对应的高度角，终端可获取N个发射角中发波束0对应的高度角和发波束16对应的高度角，判断发波束0对应的高度角是否大于发波束16对应的高度角。若终端根据波束邻域关系指示的N个发射角之间的大小关系，验证N个发射角正确，则终端可根据波束信息集合中包括的N个发射角，基于关系式二得到第一发射角，如此可提高终端确定出第一发射角的准确性。
再一个具体实现中，终端可先根据波束信息集合中包括的波束邻域关系，基于关系式一得到第一发射角(可称为第一发射角1)；以及根据波束信息集合中包括的N个发射角，基于关系式二得到第一发射角(可称为第一发射角2)。然后终端可根据第一发射角1和第一发射角2进行验证，比如终端若确定第一发射角1和第一发射角2之间的差值小于发射角阈值，则终端可确定第一发射角1和第一发射角2通过验证。终端可进一步根据第一发射角1和第一发射角2确定出最终的第一发射角，比如终端确定第一发射角1和第一发射角2的平均值为最终的第一发射角，如此可提高终端确定出第一发射角的准确性。
步骤602，终端根据第一发射角和第一时延，预测目标时刻的目标发射角。
本申请中，终端可处于持续移动过程中，可假设终端在短时间内的运动方向和运动速度均保持不变，从而终端可根据第一发射角和第一时延，预测目标时刻的目标发射角。
在一个可能实现方式中，终端还可根据第一发射角，以及第一测量周期之前的、多个测量周期分别对应的最优发射角，来预测目标发射角。
示例性的，目标发射角可基于如下关系式三得到。
关系式三：
Figure PCTCN2021130673-appb-000014
其中，
Figure PCTCN2021130673-appb-000015
为目标发射角，
Figure PCTCN2021130673-appb-000016
为第一发射角，
Figure PCTCN2021130673-appb-000017
分别为第一测量周期之前的、k个测量周期分别对应的最优发射角，t k与t k+1之间相差第一时延。
特殊的，在第一时延中包括1个测量周期的情况下，关系式三可具体表示为：
Figure PCTCN2021130673-appb-000018
其中，
Figure PCTCN2021130673-appb-000019
为目标发射角，
Figure PCTCN2021130673-appb-000020
为第一发射角，
Figure PCTCN2021130673-appb-000021
分别为第一测量周期之前的、k个测量周期分别对应的最优发射角。
比如k＝2，
Figure PCTCN2021130673-appb-000022
可具体表示为：
Figure PCTCN2021130673-appb-000023
其中，
Figure PCTCN2021130673-appb-000024
Figure PCTCN2021130673-appb-000025
在又一个可能实现方式中，终端还可根据第一发射角和第一时延，并结合终端的运动方向和运动速度，预测目标时刻的目标发射角。示例性的，终端可根据终端的历史位置信息和第一时延，结合终端的运动方向和运动速度，预测终端在目标时刻的位置信息，其中历史位置信息可以是终端在第一测量周期的结束时刻(可称为历史时刻)的位置信息。随后终端再基于第一发射角、历史位置信息、终端在目标时刻的位置信息，预测目标发射角。结合图11示例性示出的预测目标发射角的例子，终端的历史位置信息为S1，终端向固定方向按照速度v移动，终端可根据S1、第一时延和速度v确定终端在目标时刻的位置信息S2。进一步的，终端可根据S1、S2和第一发射角，确定目标发射角。
步骤603，终端根据目标发射角和第一测量信息，确定目标测量信息。
在一个可能的实现方式中，目标测量信息中可同样包括有N个发波束分别对应的N个目标测量值，其中该N个目标测量值可由目标发射角，以及第一测量信息中包括的N个测量值确定。可以理解，N个目标测量值可基于如下关系式四得到。
关系式四：
Figure PCTCN2021130673-appb-000026
其中，P 0′，P 1′，…，P N-1′为目标测量信息中的N个目标测量值，P 0，P 1，…，P N-1为第一测量信息中包括的N个测量值，
Figure PCTCN2021130673-appb-000027
为目标发射角。
终端可根据目标发射角
Figure PCTCN2021130673-appb-000028
和第一测量信息中的P i，通过如下示例性示出的关系式四的一种具体方式，预测目标测量信息中的P i′：
Figure PCTCN2021130673-appb-000029
其中，M T为基站中包括的发天线数量，
Figure PCTCN2021130673-appb-000030
为目标发射角，
Figure PCTCN2021130673-appb-000031
为第一发射角。
此外，在另外的实现方式中，终端也可从N个发波束中选择n个发波束，根据第一测量信息中该n个发波束对应的n个测量值，预测该n个发波束对应的目标测量值，以作为目标测量信息，n为正整数且小于或等于N。一个具体实现中，终端可将第一测量周期之前的、N个发波束中对应于最高信号质量的发波束作为历史最优发波束，然后根据历史最优发波束和波束邻域关系，从N个发波束中选择n个发波束。该n个发波束可以是历史最 优发波束的一个或多个相邻发波束，或者是靠近于历史最优发波束的一个或多个发波束。
结合图8中的例子，比如历史最优发波束是发波束17，终端可预测发波束17的8个相邻发波束，即发波束16、发波束18、发波束1、发波束33、发波束0、发波束2、发波束32、发波束34分别对应的目标测量值。或者，终端还可以进一步确定比如发波束3、发波束19、发波束35、发波束48、发波束49、发波束50、发波束51等多个发波束分别对应的目标测量值。终端将这些确定出的目标测量值共同组成目标测量信息。
在该实现方式中，由于测量周期较短，两个相邻测量周期分别对应的最优发波束可以相同或者位置上接近，即无需预测距离历史最优发波束较远的发波束对应的目标测量值，从而可以降低终端的计算量。
步骤402，终端根据目标测量信息，向基站发送指示信息，其中该指示信息用于指示K个目标发波束，该K个目标发波束是根据在目标时刻、N个发波束对应的信号质量排序确定的，K为正整数且小于或等于N。
一个示例中，目标测量信息中可包括N个发波束分别对应的N个目标测量值，终端可将N个目标测量值进行从大到小排序，从而得到排序中的前K个目标测量值，K为正整数且小于或等于N。
另一个示例中，目标测量信息中可包括n个目标测量值，终端可将n个目标测量值进行从大到小排序，从而得到排序中的前K个目标测量值，n为正整数且小于或等于N，K为正整数且小于或等于n。
该前K个目标测量值可对应于K个目标发波束，本申请中，也可以将目标发波束称为是当前最优发波束，或者备选发波束。
具体的，终端向基站发送的指示信息中可包括该K个目标发波束的指示信息，其中目标发波束的指示信息中可包括目标发波束的标识，或者目标发波束的指示信息中可包括目标发波束的标识和目标测量值。本申请中，终端可在发送时刻向基站发送K个目标发波束的指示信息，该发送时刻可以在目标时刻之前，或在目标时刻之后，该发送时刻可以位于测量周期的特定位置，比如在第二测量周期之后的预设时长内。
可选的，目标发波束的指示信息中还可包括目标收波束的标识，也即目标发波束的指示信息中还可包括目标波束对的标识和目标测量值，其中目标波束对的标识中可包括目标发波束的标识和目标收波束的标识，进一步的，目标收波束即第一收波束。
步骤403，基站根据指示信息，确定目标时刻对应的服务波束对。
在目标发波束的指示信息中包括目标发波束的标识的情况下，基站可根据K个目标发波束的标识，从K个目标发波束中选择出目标时刻对应的服务发波束。可选的，基站可从K个目标发波束中随机选择一个，作为目标时刻对应的服务发波束。
或者，基站可根据K个目标发波束的标识，结合目标时刻之前的、多个测量周期对应的服务发波束，从K个目标发波束中选择出目标时刻对应的服务发波束，其中目标时刻对应的服务发波束可以是目标时刻之前的、多个测量周期对应的服务发波束中的一个，或者是靠近于目标时刻之前的、多个测量周期对应的服务发波束。
可选的，在K＝1时，基站可将该一个目标发射波束作为目标时刻对应的服务发波束。
在目标发波束的指示信息中包括目标发波束的标识和目标测量值的情况下，基站可根 据K个目标发波束的标识和目标测量值，从K个目标发波束中选择出目标时刻对应的服务发波束。一个示例中，基站选择K个目标测量值中的最大目标测量值对应的目标发波束，作为目标时刻对应的服务发波束。
再一个示例中，基站还可获取目标时刻之前的、多个历史测量周期中每个历史测量周期对应的N个发波束的测量值，根据该K个目标发波束的指示信息和该多个历史测量周期中每个历史测量周期对应的N个发波束的测量值，执行滤波算法，以从N个发波束中选择出目标时刻对应的服务发波束。
如下预先说明基站获取每个历史测量周期对应的N个发波束的测量值的实现方式：以目标时刻的前一个历史测量周期为例，终端也可确定K个发波束的指示信息，将K个发波束的指示信息发送给基站，相应的，基站可获取到前一个历史测量周期中K个发波束的标识和测量值。基站可将前一个历史测量周期中、终端未上报的其他(N－K)个发波束的测量值设置为预设值，可选的，该预设值小于终端上报的该K个测量值中的最小值，比如该预设值等于该最小值的1/2。如此，基站可获取到多个历史测量周期中、每个历史测量周期分别对应的N个发波束的测量值。
进一步的，基站在接收到终端发送的该K个目标发波束的指示信息之后，也可将除K个目标发波束以外的其他(N－K)个发波束的测量值设置为预设值，从而基站可获取到当前测量周期的N个发波束的测量值。
随后，基站可结合当前测量周期的N个发波束的测量值，以及多个历史测量周期分别对应的N个发波束的测量值，确定N个发波束分别对应的测量值的加权平均值，其中每个测量值对应的加权值可以相同或不同。
基站得到N个发波束分别对应的N个加权平均值之后，可从N个加权平均值中选择最大的加权平均值，将该最大的加权平均值对应的发波束作为目标时刻对应的服务发波束。
进一步的，基站可获取目标收波束的标识(即第一收波束的标识)，将目标时刻对应的目标收波束的标识和服务发波束的标识，组成目标时刻对应的服务波束对。其中，基站可从目标发波束的指示信息中获取目标收波束的标识。
步骤404，基站向终端发送目标时刻对应的服务波束对的标识。
基站可确定目标时刻对应的服务波束对是否与当前使用的服务波束对相同，若是，则表明基站与终端当前使用的服务波束对即为最优的，无需进行更新。
若目标时刻对应的服务波束对与当前使用的服务波束对不同，则基站可向终端发送目标时刻对应的服务波束对的标识。示例性的，基站可向终端发送MAC-CE，该MAC-CE中包括目标时刻对应的服务波束对的标识，该MAC-CE可用于指示终端切换服务收波束，该切换之后的服务收波束可用于终端接收来自基站的服务发波束发送的目标信号。
步骤405，基站向终端发送目标信号。
还需要补充的是，上述仅仅是以发送端和接收端分别是图1的基站和终端为例说明。本申请还可适用于发送端和接收端分别是图1的终端和基站的实现方式中，可将图4至图11实现方式中的终端替换为基站，相应的，将基站替换为终端，参考信号可以是SRS。
当然，本申请还可适用于发送端和接收端为图1的两个终端的实现方式中，比如该接收端用终端1表示，发送端用终端2表示，则可将图4至图11实现方式中的终端替换为终端1，相应的，将基站替换为终端2，参考信号可以是DM-RS。
此外，终端作为发送端可能会旋转，接收端可确定发送端旋转之后的发射角，进而根据发送端旋转之后的发射角，结合上述图4至图11中的实现方式，确定出服务波束对。
上述技术方案中，接收端在测量信息集合中选择第一测量信息，第一测量信息即最优收波束对应的测量信息，接收端可根据第一测量信息预测未来时刻(即目标时刻)对应的测量信息，即通过最优收波束对应的测量信息预测目标时刻对应的测量信息，通过该方式可较好的确定出目标时刻对应的信号质量最好的波束对，以作为服务波束对，有助于接收端实现较好的波束跟踪。
进一步的，当满足如下条件时，本技术方案可获取到较大的增益：
(1)接收端测量参考信号得到的SNR，大于第一预设门限值；
(2)接收端测量当前最优发波束的参考信号得到的RSRP，与接收端测量历史最优发波束的参考信号得到的RSRP之间满足如下关系式：
RSRP1＜RSRP2-第二预设门限值
其中，RSRP1为接收端测量当前最优发波束的参考信号得到的RSRP，RSRP2接收端测量历史最优发波束的参考信号得到的RSRP。
特别地，在接收端和发送端分别是终端和基站的场景中，终端和基站之间存在视距(line of sight，LOS)径，在终端高速移动或距离基站较近时，终端接收的基站信号可获取到较大增益，比如终端运动速度为60km/h且终端与基站距离为40m，终端接收基站的信号可获取到4dB以上的增益；比如终端运动速度为90km/h且终端与基站距离为40m，终端接收基站的信号可获取到10dB以上的增益，从而有助于降低断链风险。
基于上述内容和相同构思，图12和图13为本申请提供的可能的通信装置的结构示意图。这些通信装置可以用于实现上述方法实施例中接收端(比如终端或无线接入网设备)的功能，因此也能实现上述方法实施例所具备的有益效果。
在本申请中，该通信装置可以是如图1所示的终端，还可以是应用于终端的模块(如芯片)，该通信装置可以是如图1所示的无线接入网设备，还可以是应用于无线接入网设备的模块(如芯片)。
如图12所示，该通信装置1200包括处理模块1201和收发模块1202。通信装置1200用于实现上述图4至图11相关实施例中接收端的功能。
在一种可能的实现方式中，处理模块1201，用于获取第一测量信息，第一测量信息是在第一测量周期中、通过第一收波束测量来自于N个发波束的参考信号得到的，第一测量信息用于确定目标时刻的第一收波束对应的目标测量信息，目标时刻在第一测量周期之后，N为正整数；处理模块1201，还用于根据目标测量信息，从N个发波束中确定出K个目标发波束，其中，K个目标发波束根据在目标时刻、N个发波束对应的信号质量排序确定，K为正整数且小于或等于N；收发模块1202，用于发送指示信息，指示信息用于指示K个目标发波束。
在一种可能的实现方式中，处理模块1201具体用于：根据第一测量信息，确定第一发射角；其中，在第一测量周期中，第一发射角对应的信号质量最高；根据第一测量信息和第一发射角，确定目标测量信息。
在一种可能的实现方式中，处理模块1201具体用于：根据第一测量信息和波束信息集合，确定第一发射角；其中，波束信息集合中包括N个发波束对应的N个发射角、N个 发波束中任两个发波束之间的相对位置关系中的一项或多项。
在一种可能的实现方式中，处理模块1201还用于：控制收发模块1202接收第一发波束的波束信息，第一发波束的波束信息中包括第一发波束的发射角、第一发波束与第二发波束之间的相对位置关系中的一项或多项，第一发波束是N个发波束中的一个，第二发波束是N个发波束中与第一发波束相邻的一个或多个发波束；或，控制收发模块1202接收波束信息集合。
在一种可能的实现方式中，处理模块1201具体用于：在第二测量周期中，通过第二收波束测量参考信号，得到第二测量信息；获取第二测量周期之前的M-1个测量周期对应的测量信息，将第二测量信息，以及M-1个测量周期对应的测量信息组成M个测量信息；M-1个测量周期中任一个测量周期对应的测量信息是测量周期对应的收波束测量参考信号得到的；从M个测量信息中选择第一测量信息，其中，在M个测量信息指示的M个收波束对应的M个信号质量中，第一收波束测量对应的信号质量最高。
在一种可能的实现方式中，处理模块1201具体用于：根据第一发射角，预测目标时刻的目标发射角，目标时刻与第一测量周期的结束时刻相差第一时延；根据目标发射角和第一测量信息，确定目标测量信息；其中，第一时延中包括周期时延、处理时延中的一项或多项，周期时延中包括L个测量周期，L根据第一测量周期和第二测量周期确定，L为正整数。
在一种可能的实现方式中，目标测量信息中包括n个发波束的测量信息，n个发波束是根据N个发波束中、历史最优发波束与其他发波束之间的相对位置关系确定的；历史最优发波束是第一测量周期之前的、N个发波束中对应于最高信号质量的发波束，n为正整数且小于或等于N。
在一种可能的实现方式中，目标测量信息是RSRP，处理模块1201具体用于：选择目标测量信息中、RSRP从大到小排序中的前K个RSRP，前K个RSRP对应于K个目标发波束；发送K个目标发波束的指示信息，目标发波束的指示信息中包括目标发波束对应的RSRP和发波束的标识。
如图13所示为本申请实施例提供的装置1300，图13所示的装置可以为图12所示的装置的一种硬件电路的实现方式。该装置可适用于前面所示出的流程图中，执行上述方法实施例中接收端的功能。
为了便于说明，图13仅示出了该装置的主要部件。
图13所示的装置1300包括通信接口1310、处理器1320和存储器1330，其中存储器1330用于存储程序指令和/或数据。处理器1320可能和存储器1330协同操作。处理器1320可能执行存储器1330中存储的程序指令。存储器1330中存储的指令或程序被执行时，该处理器1320用于执行上述实施例中处理模块1201执行的操作，通信接口1310用于执行上述实施例中收发模块1202执行的操作。
存储器1330和处理器1320耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。存储器1330中的至少一个可以包括于处理器1320中。
在本申请实施例中，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口。在本申请实施例中，通信接口为收发器时，收发器可以包括独立的接收器、独立的发 射器；也可以集成收发功能的收发器、或者是通信接口。
装置1300还可以包括通信线路1340。其中，通信接口1310、处理器1320以及存储器1330可以通过通信线路1340相互连接；通信线路1340可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。通信线路1340可以分为地址总线、数据总线、控制总线等。为便于表示，图13中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
基于上述内容和相同构思，本申请实施例提供一种通信装置，包括处理器，处理器与存储器相连，存储器用于存储计算机程序，处理器用于执行存储器中存储的计算机程序，以使得通信装置执行图4至图11相关实施例中接收端的功能。
基于上述内容和相同构思，本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序或指令，当计算机程序或指令被计算机执行时，实现图4至图11相关实施例中接收端的功能。
基于上述内容和相同构思，本申请实施例提供一种计算机程序产品，计算机程序产品包括计算机程序或指令，当计算机程序或指令被计算机执行时，实现图4至图11相关实施例中接收端的功能。
基于上述内容和相同构思，本申请实施例提供一种通信***，该通信***包括接收端和发送端，其中，接收端可用于执行图4至图11相关实施例中接收端的功能。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的保护范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (20)

  1. 一种确定发波束的方法，其特征在于，包括：
    获取第一测量信息，所述第一测量信息是在第一测量周期中、通过第一收波束测量来自于N个发波束的参考信号得到的，所述第一测量信息用于确定目标时刻的所述第一收波束对应的目标测量信息，所述目标时刻在所述第一测量周期之后，N为正整数；
    根据所述目标测量信息，发送指示信息，所述指示信息用于指示K个目标发波束，所述K个目标发波束根据在所述目标时刻、所述N个发波束对应的信号质量排序确定，K为正整数且小于或等于N。
  2. 如权利要求1所述的方法，其特征在于，所述第一测量信息用于确定目标时刻的所述第一收波束对应的目标测量信息，包括：
    根据所述第一测量信息，确定第一发射角；其中，在所述第一测量周期中，所述第一发射角对应的信号质量最高；
    根据所述第一测量信息和所述第一发射角，确定所述目标测量信息。
  3. 如权利要求2所述的方法，其特征在于，所述根据第一测量信息，确定第一发射角，包括：
    根据所述第一测量信息和波束信息集合，确定所述第一发射角；
    其中，所述波束信息集合中包括所述N个发波束对应的N个发射角、所述N个发波束中任两个发波束之间的相对位置关系中的一项或多项。
  4. 如权利要求3所述的方法，其特征在于，还包括：
    接收第一发波束的波束信息，所述第一发波束的波束信息中包括所述第一发波束的发射角、所述第一发波束与第二发波束之间的相对位置关系中的一项或多项，所述第一发波束是所述N个发波束中的一个，所述第二发波束是所述N个发波束中与所述第一发波束相邻的一个或多个发波束；
    或，接收所述波束信息集合。
  5. 如权利要求1至4任一项所述的方法，其特征在于，所述获取第一测量信息，包括：
    在第二测量周期中，通过第二收波束测量所述参考信号，得到第二测量信息；
    获取所述第二测量周期之前的M-1个测量周期对应的测量信息，将所述第二测量信息，以及所述M-1个测量周期对应的测量信息组成M个测量信息；所述M-1个测量周期中任一个测量周期对应的测量信息是所述测量周期对应的收波束测量所述参考信号得到的；
    从所述M个测量信息中选择所述第一测量信息，其中，在所述M个测量信息指示的M个收波束对应的M个信号质量中，所述第一收波束测量对应的信号质量最高。
  6. 如权利要求2至5任一项所述的方法，其特征在于，所述根据所述第一测量信息和所述第一发射角，确定所述目标测量信息，包括：
    根据所述第一发射角，预测所述目标时刻的目标发射角，所述目标时刻与所述第一测量周期的结束时刻相差第一时延；
    根据所述目标发射角和所述第一测量信息，确定所述目标测量信息；
    其中，所述第一时延中包括周期时延、处理时延中的一项或多项，所述周期时延中包括L个测量周期，所述L根据所述第一测量周期和第二测量周期确定，L为正整数。
  7. 如权利要求1至6任一项所述的方法，其特征在于，所述目标测量信息中包括n个 发波束的测量信息，所述n个发波束是根据所述N个发波束中、历史最优发波束与其他发波束之间的相对位置关系确定的；所述历史最优发波束是所述第一测量周期之前的、所述N个发波束中对应于最高信号质量的发波束，n为正整数且小于或等于N。
  8. 如权利要求1至7任一项所述的方法，其特征在于，所述目标测量信息是参考信号接收功率RSRP；所述根据所述目标测量信息，发送指示信息，包括：
    选择所述目标测量信息中、RSRP从大到小排序中的前K个RSRP，所述前K个RSRP对应于所述K个目标发波束；
    发送所述K个目标发波束的指示信息，所述指示信息包括RSRP和波束标识(beam ID)。
  9. 一种通信装置，其特征在于，包括处理模块和收发模块；
    所述处理模块，用于获取第一测量信息，所述第一测量信息是在第一测量周期中、通过第一收波束测量来自于N个发波束的参考信号得到的，所述第一测量信息用于确定目标时刻的所述第一收波束对应的目标测量信息，所述目标时刻在所述第一测量周期之后，N为正整数；
    所述处理模块，还用于根据所述目标测量信息，从所述N个发波束中确定出K个目标发波束，其中，所述K个目标发波束根据在所述目标时刻、所述N个发波束对应的信号质量排序确定，K为正整数且小于或等于N；
    所述收发模块，用于发送指示信息，所述指示信息用于指示所述K个目标发波束。
  10. 如权利要求9所述的装置，其特征在于，所述处理模块具体用于：
    根据所述第一测量信息，确定第一发射角；其中，在所述第一测量周期中，所述第一发射角对应的信号质量最高；
    根据所述第一测量信息和所述第一发射角，确定所述目标测量信息。
  11. 如权利要求10所述的装置，其特征在于，所述处理模块具体用于：
    根据所述第一测量信息和波束信息集合，确定所述第一发射角；
    其中，所述波束信息集合中包括所述N个发波束对应的N个发射角、所述N个发波束中任两个发波束之间的相对位置关系中的一项或多项。
  12. 如权利要求11所述的装置，其特征在于，所述处理模块还用于：
    控制所述收发模块接收第一发波束的波束信息，所述第一发波束的波束信息中包括所述第一发波束的发射角、所述第一发波束与第二发波束之间的相对位置关系中的一项或多项，所述第一发波束是所述N个发波束中的一个，所述第二发波束是所述N个发波束中与所述第一发波束相邻的一个或多个发波束；
    或，控制所述收发模块接收所述波束信息集合。
  13. 如权利要求9至12任一项所述的装置，其特征在于，所述处理模块具体用于：
    在第二测量周期中，通过第二收波束测量所述参考信号，得到第二测量信息；
    获取所述第二测量周期之前的M-1个测量周期对应的测量信息，将所述第二测量信息，以及所述M-1个测量周期对应的测量信息组成M个测量信息；所述M-1个测量周期中任一个测量周期对应的测量信息是所述测量周期对应的收波束测量所述参考信号得到的；
    从所述M个测量信息中选择所述第一测量信息，其中，在所述M个测量信息指示的M个收波束对应的M个信号质量中，所述第一收波束测量对应的信号质量最高。
  14. 如权利要求10至13任一项所述的装置，其特征在于，所述处理模块具体用于：
    根据所述第一发射角，预测所述目标时刻的目标发射角，所述目标时刻与所述第一测量周期的结束时刻相差第一时延；
    根据所述目标发射角和所述第一测量信息，确定所述目标测量信息；
    其中，所述第一时延中包括周期时延、处理时延中的一项或多项，所述周期时延中包括L个测量周期，所述L根据所述第一测量周期和第二测量周期确定，L为正整数。
  15. 如权利要求9至14任一项所述的装置，其特征在于，所述目标测量信息中包括n个发波束的测量信息，所述n个发波束是根据所述N个发波束中、历史最优发波束与其他发波束之间的相对位置关系确定的；所述历史最优发波束是所述第一测量周期之前的、所述N个发波束中对应于最高信号质量的发波束，n为正整数且小于或等于N。
  16. 如权利要求9至15任一项所述的装置，其特征在于，所述目标测量信息是参考信号接收功率RSRP，所述处理模块具体用于：
    选择所述目标测量信息中、RSRP从大到小排序中的前K个RSRP，所述前K个RSRP对应于所述K个目标发波束；
    发送所述K个目标发波束的指示信息，所述目标发波束的指示信息中包括所述目标发波束对应的RSRP和发波束的标识(beam ID)。
  17. 一种通信装置，其特征在于，包括处理器，所述处理器与存储器相连，所述存储器用于存储计算机程序，所述处理器用于执行所述存储器中存储的计算机程序，以使得所述通信装置执行如权利要求1至8中任一项所述的方法。
  18. 一种通信装置，其特征在于，包括：处理电路和接口电路；其中，
    所述接口电路用于与所述无线通信装置外部的存储器耦合，并为所述处理电路访问所述存储器提供通信接口；
    所述处理电路用于执行所述存储器中的程序指令，以实现如权利要求1至8中的任一所述方法。
  19. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序或指令，当所述计算机程序或指令被计算机执行时，实现如权利要求1至8中任一项所述的方法。
  20. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序或指令，当所述计算机程序或指令被计算机执行时，实现如权利要求1至8中任一项所述的方法。
PCT/CN2021/130673 2021-11-15 2021-11-15 一种确定发波束的方法及装置 WO2023082258A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/130673 WO2023082258A1 (zh) 2021-11-15 2021-11-15 一种确定发波束的方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/130673 WO2023082258A1 (zh) 2021-11-15 2021-11-15 一种确定发波束的方法及装置

Publications (1)

Publication Number Publication Date
WO2023082258A1 true WO2023082258A1 (zh) 2023-05-19

Family

ID=86334900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/130673 WO2023082258A1 (zh) 2021-11-15 2021-11-15 一种确定发波束的方法及装置

Country Status (1)

Country Link
WO (1) WO2023082258A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160373180A1 (en) * 2013-12-20 2016-12-22 Zte Corporation Downlink beam determining method, device and system, and computer storage medium
CN108243430A (zh) * 2016-12-23 2018-07-03 维沃移动通信有限公司 一种波束管理信息的配置、处理方法、终端及基站
CN108631830A (zh) * 2017-03-24 2018-10-09 电信科学技术研究院 一种发送波束确定方法、发送端和接收端
WO2020164027A1 (en) * 2019-02-13 2020-08-20 Nokia Shanghai Bell Co., Ltd. Beam selection of multi-trp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160373180A1 (en) * 2013-12-20 2016-12-22 Zte Corporation Downlink beam determining method, device and system, and computer storage medium
CN108243430A (zh) * 2016-12-23 2018-07-03 维沃移动通信有限公司 一种波束管理信息的配置、处理方法、终端及基站
CN108631830A (zh) * 2017-03-24 2018-10-09 电信科学技术研究院 一种发送波束确定方法、发送端和接收端
WO2020164027A1 (en) * 2019-02-13 2020-08-20 Nokia Shanghai Bell Co., Ltd. Beam selection of multi-trp

Similar Documents

Publication Publication Date Title
JP7131873B2 (ja) 通信方法及び通信装置
WO2020088350A1 (zh) 一种定位方法及设备
CN110035441B (zh) 确定波束的方法及通信装置
WO2020103793A1 (zh) 波束上报的方法和通信装置
WO2021052179A1 (zh) 一种上行数据传输方法及装置
WO2022077387A1 (zh) 一种通信方法及通信装置
JP2022539974A (ja) ビーム構成方法および装置
US20210013952A1 (en) Communication Devices for Efficient Beam Management
CN109842890B (zh) 信号测量方法、相关装置及***
WO2019101051A1 (zh) 用于无线通信***的电子设备、方法和存储介质
WO2022090315A1 (en) Dual asset tracking based on different radio access technologies
WO2023082258A1 (zh) 一种确定发波束的方法及装置
US20230042138A1 (en) Method and apparatus for sidelink positioning in wireless communication system
CN116711228A (zh) 一种传输参数确定方法及装置
CN111818552A (zh) 一种基于cu-du架构的定位方法及装置
WO2023232040A1 (zh) 通信方法及通信装置
WO2023241457A1 (zh) 通信方法及装置
WO2023208166A1 (zh) 一种定时指示的方法及通信装置
WO2023207822A1 (zh) 通信方法、设备和存储介质
WO2023207526A1 (zh) 波束度量参数反馈方法和接收方法及装置
CN118282443A (zh) 一种无人机的天线切换方法、装置及***
EP4287523A1 (en) Phase correction method and communication apparatus
WO2024087028A1 (zh) 一种信道测量方法及装置
WO2023165460A1 (zh) 一种通信方法、装置及***
WO2023088114A1 (zh) 波束恢复方法、波束失败检测方法以及相关装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21963704

Country of ref document: EP

Kind code of ref document: A1