WO2019011248A1 - Procédé et appareil de rapport d'information de faisceau, et procédé et appareil de détermination d'information de faisceau - Google Patents

Procédé et appareil de rapport d'information de faisceau, et procédé et appareil de détermination d'information de faisceau Download PDF

Info

Publication number
WO2019011248A1
WO2019011248A1 PCT/CN2018/095189 CN2018095189W WO2019011248A1 WO 2019011248 A1 WO2019011248 A1 WO 2019011248A1 CN 2018095189 W CN2018095189 W CN 2018095189W WO 2019011248 A1 WO2019011248 A1 WO 2019011248A1
Authority
WO
WIPO (PCT)
Prior art keywords
time
terminal
frequency resource
indication information
resource index
Prior art date
Application number
PCT/CN2018/095189
Other languages
English (en)
Chinese (zh)
Inventor
周恩治
向高
黄煌
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
Publication of WO2019011248A1 publication Critical patent/WO2019011248A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and apparatus for reporting and determining beam information.
  • Beamforming techniques are used to limit the energy of the transmitted signal to a certain beam direction, thereby increasing signal and reception efficiency. Beamforming technology can effectively expand the transmission range of wireless signals and reduce signal interference, thereby achieving higher communication efficiency and higher network capacity.
  • the transmit beam and the receive beam need to be matched (ie, beam aligned), so that the receive beam obtains better signal quality from the transmit beam, otherwise high communication efficiency cannot be achieved or even communication is impossible.
  • the matching of the transmit beam and the receive beam can be achieved by beam scanning.
  • the network device sends a reference signal to the terminal by using multiple transmit beams, where the reference signal is sent on a specific time-frequency resource by using each transmit beam.
  • the terminal may determine the signal strength of different transmit beams by detecting the signal strength of the reference signals received on different time-frequency resources, and report the time-frequency resource index corresponding to one or more transmit beams with good signal strength.
  • the network device determines, according to the correspondence between the time-frequency resource index and the transmit beam, the transmit beam used when the signal is sent to the terminal.
  • the network device may reconfigure the time-frequency resources of the beam scanning for the terminal. In this case, how to continue the beam alignment process has not yet provided an effective solution.
  • the present application provides a method and apparatus for reporting and determining beam information, so that the terminal can report the beam information, and the network device determines the beam information reported by the terminal, thereby further facilitating the beam alignment process.
  • a method and apparatus for reporting beam information is provided.
  • the method may include: determining, by the terminal, the network device to reconfigure the time-frequency resource of the beam scanning for the terminal; and then sending the indication information to the network device, where the indication information is used to indicate that the preset is met before the reconfiguration
  • the time-frequency resource index corresponding to the transmit beam of the condition, or the time-frequency resource index corresponding to the transmit beam that satisfies the preset condition after the reconfiguration It can be understood that before the implementation of the technical solution, the network device has configured the time-frequency resource of the beam scanning for the terminal.
  • the present application does not limit the triggering condition of the network device for reconfiguring the time-frequency resource of the beam scanning of the terminal.
  • the network device may reconfigure the time-frequency resource of the beam scanning for the terminal before the beam alignment is determined, or may be The time-frequency resource of beam scanning is reconfigured for the terminal after one or more beam alignments have been determined.
  • the terminal may determine that the network device reconfigures the time-frequency resource of the beam scanning for the terminal.
  • the terminal may report the indication information under the direction of the network device or spontaneously.
  • the terminal may report to the network device a time-frequency resource index corresponding to the transmit beam that meets the preset condition before or after reconfiguration; and, because the network After the device is reconfigured, the terminal re-executes the beam detection process and records the detection result.
  • the time-frequency resource index reported by the terminal is the detection result obtained before the reconfiguration, or the detection result obtained after the re-configuration is measured long enough. Therefore, the probability that the transmission beam used by the network device to transmit signals to the terminal is a transmission beam with a higher signal strength is improved.
  • a device for reporting beam information which can implement the method for reporting beam information in the first aspect.
  • the device may be a terminal, which may implement the above method by software, hardware, or by executing corresponding software by hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the first aspect method described above.
  • the memory is for coupling to a processor that holds the programs (instructions) and data necessary for the device.
  • the apparatus can also include a communication interface for supporting communication between the apparatus and other network elements.
  • the communication interface can be a transceiver.
  • the apparatus can include a processing unit and a transceiver unit.
  • the processing unit is configured to determine that the network device reconfigures the time-frequency resource of the beam scanning for the terminal.
  • the transceiver unit is configured to send the indication information to the network device, where the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition before the reconfiguration, or to indicate a corresponding transmit beam that meets the preset condition after the reconfiguration Time-frequency resource index.
  • the present application provides a method and apparatus for determining beam information.
  • the method may include: the network device reconfiguring the time-frequency resource of the beam scanning for the terminal; and then receiving the indication information sent by the terminal, where the indication information is used to indicate the transmission that meets the preset condition before the reconfiguration
  • the time-frequency resource index corresponding to the beam, or the time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration is performed; and then, the transmit beam corresponding to the time-frequency resource index indicated by the indication information is determined.
  • the network device may select one or more transmit beams from the transmit beams corresponding to the time-frequency resource index indicated by the indication information to send a signal to the terminal.
  • the device may be a network device such as a base station, which may implement the above method by software, hardware, or by executing corresponding software by hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the second aspect method described above.
  • the memory is for coupling to a processor that holds the programs (instructions) and data necessary for the device.
  • the apparatus can also include a communication interface for supporting communication between the apparatus and other network elements.
  • the communication interface can be a transceiver.
  • the apparatus can include a processing unit and a transceiver unit.
  • the processing unit is configured to reconfigure the time-frequency resource of the beam scanning for the terminal.
  • the transceiver unit is configured to receive the indication information that is sent by the terminal, where the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition before the re-configuration, or is used to indicate the time corresponding to the transmit beam that meets the preset condition after the reconfiguration. Frequency resource index.
  • the processing unit is further configured to determine a transmit beam corresponding to the time-frequency resource index indicated by the indication information.
  • t3-t1 is less than or equal to T1
  • t3-t2 is less than or equal to T2
  • t4-t1 is less than or equal to T3
  • t4-t2 is less than or equal to T4.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition before reconfiguration.
  • t3-t1 is greater than T1
  • t3-t2 is greater than T2
  • t4-t1 is greater than T3
  • t4 -t2 is greater than T4.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after reconfiguration.
  • T4 is the time when the terminal sends the indication information
  • T1 is the time when the terminal determines the reconfiguration
  • t2 is the time when the terminal determines the reconfiguration
  • t3 is the time when the terminal receives the instruction to send the indication information
  • t4 is the time when the terminal sends the indication information
  • T1, T2, T3 Both T4 and T4 are preset time periods.
  • the time-frequency resource index reported by the terminal is obtained after the re-configuration, or after the re-configuration, the time-frequency resource index is obtained after the re-configuration. The detection result, thereby increasing the probability that the transmission beam used by the network device to transmit a signal to the terminal is a transmission beam with a higher signal strength.
  • the method provided by the first aspect may further include: before the terminal sends the indication information to the network device, the terminal receives the configuration information sent by the network device, where the configuration information is used to indicate the preset time period.
  • the transceiver unit in the terminal provided by the first aspect is further configured to: receive configuration information sent by the network device, where the configuration information is used to indicate a preset time period.
  • the method provided by the second aspect may include: before the network device receives the indication information sent by the terminal, sending configuration information to the terminal, where the configuration information is used to indicate the preset time period.
  • the transceiver unit in the network device provided by the second aspect may be further configured to: before receiving the indication information sent by the terminal, send configuration information to the terminal, where the configuration information is used to indicate the preset time period.
  • the configuration information may be, for example but not limited to, at least one of the following signaling: radio resource control (RRC) signaling, medium access control (MAC) signaling, and downlink control information ( Downstream control information, DCI).
  • RRC radio resource control
  • MAC medium access control
  • DCI downlink control information
  • the network device configures the preset time period to the terminal by using the signaling manner.
  • the application is not limited thereto.
  • the preset time period may also be pre-agreed, for example, by a protocol.
  • the preset time period may be any one or more of the foregoing T1, T2, T3, and T4.
  • the terminal may determine the content indicated by the reported indication information according to the difference between the partial time points of t1, t2, t3, and t4 and the preset time period.
  • the network device may also according to the corresponding time. The difference between the points and the size of the corresponding preset time period determines the content indicated by the received indication information.
  • the indication information includes an indication field, where the indication field is used to indicate that the time-frequency resource index indicated by the indication information is pre-configured before reconfiguration.
  • the terminal may determine the content indicated by the indication information according to the difference between the partial time points of t1, t2, t3, and t4 and the preset time period, and directly carry an indication in the indication information.
  • the network device may determine, according to the indication field in the indication information, that the time-frequency resource used before the re-configuration of the transmit beam and the beam scan is used. Corresponding relationship, or according to the correspondence between the reconfigured transmit beam and the time-frequency resource of the beam scan, the transmit beam corresponding to the time-frequency resource index reported by the terminal is determined.
  • a method and apparatus for reporting beam information is provided.
  • the method may include: determining, by the terminal, the network device to reconfigure the time-frequency resource of the beam scanning for the terminal.
  • the terminal transmits the indication information at time t1/+Tr1/after or at t2+Tr2 time/after.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • T1 is the time at which the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • both Tr1 and Tr2 are preset time periods. In other words, the terminal does not transmit the indication information in the time window Tr1 starting at time t1 or in the time window Tr2 starting at time t2.
  • the beam scanning time is long enough after the reconfiguration takes effect, so that the transmitting beam that is sent by the network device to the terminal according to the time-frequency resource index reported by the terminal is a signal.
  • the probability of a higher intensity transmit beam is higher, which improves system performance.
  • a device for reporting beam information which can implement the method for reporting beam information in the third aspect.
  • the device may be a terminal, which may implement the above method by software, hardware, or by executing corresponding software by hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the third aspect described above.
  • the memory is for coupling to a processor that holds the programs (instructions) and data necessary for the device.
  • the apparatus can also include a communication interface for supporting communication between the apparatus and other network elements.
  • the communication interface can be a transceiver.
  • the apparatus can include a processing unit and a transceiver unit.
  • the processing unit is configured to determine that the network device reconfigures the time-frequency resource of the beam scanning for the terminal.
  • the transceiver unit is configured to transmit the indication information at time t1/+Tr1/after or at t2+Tr2 time/after.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • T1 is the time at which the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • both Tr1 and Tr2 are preset time periods.
  • an indication method and apparatus are provided.
  • the method may include: the network device reconfigures the time-frequency resource of the beam scanning for the terminal, and then sends a reporting instruction to the terminal at the time after/after the time t1+Tr1 or after/after the time t2+Tr2, where The reporting instruction is used to instruct the terminal to send the indication information, where the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • T1 is the time at which the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • both Tr1 and Tr2 are preset time periods.
  • the network device does not transmit a report command in the time window Tr1 starting at time t1 or in the time window Tr2 starting at time t2.
  • the beam scanning time is long enough after the reconfiguration takes effect, so that the transmission beam that the network device sends to the terminal according to the time-frequency resource index reported by the terminal is The probability of a transmitted beam with a higher signal strength is higher, which improves system performance.
  • a pointing device which can implement the indicating method of the fourth aspect.
  • the device may be a network device, which may implement the above method by software, hardware, or by executing corresponding software through hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the fourth aspect described above.
  • the memory is for coupling to a processor that holds the programs (instructions) and data necessary for the device.
  • the apparatus can also include a communication interface for supporting communication between the apparatus and other network elements.
  • the communication interface can be a transceiver.
  • the apparatus can include a processing unit and a transceiver unit.
  • the processing unit is configured to reconfigure the time-frequency resource of the beam scanning for the terminal.
  • the transceiver unit is configured to send a reporting instruction to the terminal at the time t1/+Tr1 time/after or t2+Tr2 time/after, the reporting instruction is used to instruct the terminal to send the indication information, where the indication information is used to indicate the transmission beam that meets the preset condition after the reconfiguration Corresponding time-frequency resource index.
  • T1 is the time when the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • both Tr1 and Tr2 are preset time periods.
  • a method and apparatus for reporting beam information are provided.
  • the method may include: determining, by the terminal, the network device to reconfigure the time-frequency resource of the beam scanning for the terminal. If t5-t1 is less than or equal to Tu1, the terminal transmits an indication message at time t1+Tu1. Alternatively, if t5-t2 is less than or equal to Tu2, the terminal transmits the indication information at time t2+Tu2.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • T1 is the time when the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • t5 is the time when the network device notifies the terminal to send the indication information.
  • Both Tu1 and Tu2 are preset time periods.
  • the terminal transmits the indication information at the time of max ⁇ t5, (t1+Tu1) ⁇ .
  • the indication information is transmitted at time max ⁇ t5, (t2+Tu2) ⁇ .
  • the beam scanning time is long enough after the reconfiguration takes effect, so that the transmission beam that the network device sends to the terminal according to the time-frequency resource index reported by the terminal is a signal.
  • the probability of a higher intensity transmit beam is higher, which improves system performance.
  • a device for reporting beam information which can implement the indication method of the fifth aspect.
  • the device may be a terminal, which may implement the above method by software, hardware, or by executing corresponding software by hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the fifth aspect described above.
  • the memory is for coupling to a processor that holds the programs (instructions) and data necessary for the device.
  • the apparatus can also include a communication interface for supporting communication between the apparatus and other network elements.
  • the communication interface can be a transceiver.
  • the apparatus can include a processing unit and a transceiver unit.
  • the processing unit is configured to determine that the network device reconfigures the time-frequency resource of the beam scanning for the terminal.
  • the transceiver unit is configured to transmit the indication information at time t1+Tu1 if t5-t1 is less than or equal to Tu1; or send the indication information at time t2+Tu2 if t5-t2 is less than or equal to Tu2.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • T1 is the time when the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • t5 is the time when the network device notifies the terminal to send the indication information.
  • Both Tu1 and Tu2 are preset time periods.
  • a method and apparatus for determining an available beam i.e., a transmit beam that satisfies a predetermined condition as referred to above.
  • the method may include: combining, by the terminal, the signal strength of the reference signal from a transmit beam obtained in each beam measurement period in a measurement time window before the current time from the current time ( Or filtering) to determine if the transmit beam is an available beam.
  • the method may include: the terminal combines the signal strengths of the reference signals from one transmit beam in a measurement time window before the current time from the current time interval every measurement time interval x ( Or filtering). If the block error rate (BLER) of the physical control channel (PDCCH) measured according to the transmit beam is continuously less than or equal to a threshold, the transmit beam is determined to be an available beam. The terminal assumes that the transmit beam is used to transmit the PDCCH, and then obtains a BLER of the hypothesized PDCCH according to the filtered signal strength.
  • BLER block error rate
  • an apparatus for determining available beams can implement the method of determining the available beam of the sixth aspect.
  • the device may be a terminal, which may implement the above method by software, hardware, or by executing corresponding software by hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the sixth aspect method described above.
  • the memory is for coupling to a processor that holds the programs (instructions) and data necessary for the device.
  • the apparatus can also include a communication interface for supporting communication between the apparatus and other network elements.
  • the communication interface can be a transceiver.
  • the device can include a processing unit.
  • the processing unit is configured to combine (or filter) the signal strength of the reference signal from a transmit beam obtained in each beam measurement period in a measurement time window before the current time from the current time to determine the transmit beam. Whether it is an available beam.
  • the device can include a processing unit.
  • the processing unit is configured to combine (or filter) the signal strength of the reference signal from one transmit beam in a measurement time window before the current time from the current time interval every measurement time interval x. If the BLER measured according to the transmit beam is consecutively less than or equal to a threshold, it is determined that the transmit beam is an available beam.
  • the application also provides a computer storage medium having stored thereon a computer program (instructions) that, when executed on a computer, cause the computer to perform the method of any of the above aspects.
  • the application also provides a computer program product, when run on a computer, causing the computer to perform the method of any of the above aspects.
  • the present application also provides a communication chip in which instructions are stored that, when run on a network device or terminal, cause the network device or terminal to perform the methods described in the various aspects above.
  • any of the devices or computer storage media or computer program products provided above are used to perform the corresponding methods provided above, and therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods. , will not repeat them here.
  • FIG. 1 is a schematic diagram of a communication system to which the technical solution provided by the present application is applied;
  • FIG. 2 is a schematic diagram of a beam alignment process provided by the present application.
  • FIG. 3 is a schematic diagram of a method for reporting and determining beam information according to the present application.
  • 4a is a schematic diagram showing the timing relationship of t1, t2, and t4 provided by the present application;
  • FIG. 4b is a schematic diagram showing the timing relationship of another t1, t2, and t4 provided by the present application;
  • FIG. 5a is a schematic diagram showing the timing relationship of t1, t2, t3, and t4 provided by the present application;
  • FIG. 5b is a schematic diagram showing the timing relationship of another t1, t2, t3, and t4 provided by the present application;
  • FIG. 5c is a schematic diagram showing the timing relationship of another t1, t2, t3, and t4 provided by the present application;
  • FIG. 6 is a schematic diagram showing the timing relationship of another t1, t2, t3, and t4 provided by the present application;
  • FIG. 7 is a schematic diagram of another method for reporting and determining beam information according to the present application.
  • FIG. 8 is a schematic diagram of another method for reporting and determining beam information according to the present application.
  • FIG. 9 is a schematic diagram of another method for reporting and determining beam information according to the present application.
  • FIG. 10 is a timing diagram of determining an available beam according to the present application.
  • FIG. 11 is a schematic diagram of another timing for determining available beams according to the present application.
  • FIG. 12 is a schematic structural diagram of a terminal provided by the present application.
  • FIG. 13 is a schematic structural diagram of a network device according to the present application.
  • t1 is the time when the terminal determines the reconfiguration
  • t2 is the time when the terminal determines the reconfiguration
  • t3 is the time when the terminal receives the instruction to instruct the terminal to send the indication information
  • t4 is the time when the terminal sends the indication information.
  • plural in the present application means two or more.
  • the term “and/or” in the present application is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist at the same time. There are three cases of B alone.
  • the character "/" in this article generally indicates that the contextual object is an "or” relationship.
  • the terms “first”, “second”, and the like in this application are used to distinguish different objects, and do not limit the order of the different objects.
  • the technical solution provided by the present application can be applied to various communication systems using beam scanning technologies, for example, beam scanning technology, 5G communication system, future evolution system or multiple communication fusion systems are adopted on the basis of the existing communication system. Wait. Can include a variety of application scenarios, such as machine to machine (M2M), D2M, macro communication, enhanced mobile broadband (eMBB), ultra high reliability and ultra low latency communication (ultra Reliable & low latency communication (uRLLC) and massive machine type communication (mMTC) scenarios. These scenarios may include, but are not limited to, a communication scenario between the terminal and the terminal, a communication scenario between the network device and the network device, a communication scenario between the network device and the terminal, and the like.
  • the technical solution provided by the present application can also be applied to a communication between a terminal and a terminal in a 5G communication system, or a communication between a network device and a network device.
  • FIG. 1 is a schematic diagram of a communication system to which the technical solution provided by the present application is applied, which may include one or more network devices 100 (only one is shown) and one or more connected to the network device 100. Terminal 200.
  • Network device 100 can be a device that can communicate with terminal 200.
  • Network device 100 may be a transmission reference point (TRP), a base station, a relay station or an access point, and the like.
  • the network device 100 may be a base transceiver station (BTS) in a global system for mobile communication (GSM) or a code division multiple access (CDMA) network, or may be a broadband
  • the NB (NodeB) in the code division multiple access (WCDMA) may also be an eNB or an eNodeB (evolutional NodeB) in LTE.
  • the network device 100 may also be a wireless controller in a cloud radio access network (CRAN) scenario.
  • the network device 100 may also be a network device in a 5G communication system or a network device in a future evolved network; it may also be a wearable device or an in-vehicle device or the like.
  • the terminal 200 may be a user equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a terminal, a wireless communication device, a UE proxy, or UE device, etc.
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
  • a beam and a beam pair link are introduced into the communication system.
  • a beam is a communication resource.
  • the beam can be divided into a transmit beam and a receive beam.
  • the beamforming technique can be beamforming techniques or other techniques. Beamforming includes transmit beamforming and receive beamforming.
  • the transmitting device transmits a signal with a certain beamforming weight to make a spatially directional beam formed by the transmitted signal.
  • the uplink device may be a terminal in the uplink direction, and may be a network device in the downlink direction.
  • Receive beam The receiving end device transmits a signal with a certain beamforming weight to form a spatially directional beam formed by the received signal.
  • the receiving end device may be a network device in the uplink direction, and the receiving end device may be a terminal in the downlink direction.
  • Transmit beamforming When a transmitting device with an antenna array transmits a signal, a specific amplitude and phase are set on each antenna element of the antenna array, so that the transmitted signal has a certain spatial directivity, that is, a signal in some directions The power is high, the signal power is low in some directions, and the direction in which the signal power is highest is the direction of the transmitting beam.
  • the antenna array includes a plurality of antenna elements, and the specific amplitude and phase added are beamforming weights.
  • Receive beamforming When a receiving device with an antenna array receives a signal, a specific amplitude and phase are set on each antenna element of the antenna array, so that the power gain of the received signal is directional, that is, receiving in certain directions. When the signal is high, the power gain is high. When receiving signals in some directions, the power gain is low. The direction with the highest power gain when receiving the signal is the direction of the receiving beam.
  • the antenna array includes a plurality of antenna elements, and the specific amplitude and phase added are beamforming weights.
  • Signals are transmitted using a transmit beam: the signal is sent using a beamforming weight.
  • Receive signals using receive beams receive signals using a certain beamforming weight.
  • Different beams can be considered as different resources.
  • the same information or different information can be sent using (or through) different beams.
  • the beam pair is built on the concept of the beam.
  • a beam pair typically includes one transmit beam of the transmitting device and one receive beam of the receiving device. It should be noted that, unless otherwise stated, the transmit beams in the following refer to the transmit beams of the network devices, and the receive beams refer to the receive beams of the terminals.
  • both the network device and the terminal can generate one or more transmit beams and one or more receive beams. Beam alignment is required before data is transmitted.
  • NR 5G new radio
  • Figure 2 shows a beam alignment process. Specifically, the method may include the following steps:
  • the network device configures a time-frequency resource of the beam scanning for the terminal, and performs a beam scanning process. Specifically, the network device sends a configuration message to the terminal, where the configuration message is used to indicate the time-frequency resource of the beam scanning configured by the base station.
  • the configuration message may include information about a time-frequency resource of the configured beam scan, for example, a correspondence between a time-frequency resource of the configured beam scan and a transmit beam.
  • the network device sends the reference signal to the terminal on the multiple time-frequency resources through multiple transmit beams, where the reference signal is sent to the terminal on one time-frequency resource by using one or more transmit beams. In other words, for a network device, one or more transmit beams correspond to one time-frequency resource.
  • the reference signals transmitted through different transmit beams may be the same or different.
  • Resource multiplexing can be performed between reference signals transmitted by different transmit beams, such as time-domain and/or frequency-domain resource multiplexing by time division, frequency division, code division, or a combination thereof.
  • multiple transmit beams corresponding to the same time-frequency resource can be regarded as one transmit beam. Therefore, for the terminal, one transmit beam corresponds to one time-frequency resource.
  • the reference signal may be, for example but not limited to, at least one of the following reference signals: a reference signal in a synchronization signal block (SS block), or a channel state information reference signal (CSI-) RS).
  • the reference signal in the SS block may be, for example but not limited to, at least one of the following reference signals: a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel demodulation.
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • Reference signal physical broadcast channel demodulation reference signal, PBCH-DMRS
  • the network device performs beam scanning using special time-frequency resources, which are called time-frequency resources of beam scanning.
  • the time-frequency resources corresponding to one transmitting beam may be different in size.
  • the time-frequency resource corresponding to one transmit beam may be an SS block or a partial time-frequency resource in an SS block. Therefore, one transmit beam may correspond to one SS block, or multiple transmit beams may correspond to one SS block.
  • the network device may use the CSI-RS resource to perform beam scanning.
  • the time-frequency resource corresponding to one transmitting beam is a CSI-RS resource.
  • the network device can use the CSI-RS port to perform beam scanning.
  • the time-frequency resource corresponding to one transmit beam can be one CSI-RS port, and multiple ports can form one CSI-RS resource.
  • the time-frequency resource corresponding to one transmit beam is a set of resource elements (REs).
  • One CSI-RS resource contains one or more CSI-RS ports, and one CSI-RS port is a collection of some REs.
  • the network device can periodically perform a beam scanning procedure.
  • the beam scanning period can be different.
  • the beam scanning period may be, for example but not limited to, one or more SS burst sets, and one SS burst set may include one or more SS block.
  • the beam scanning period may be, for example but not limited to, one or more CSI-RS bursts, and one CSI-RS burst may include one or more.
  • CSI-RS resources for example but not limited to, one or more CSI-RS bursts, and one CSI-RS burst may include one or more.
  • the time-frequency resource corresponding to each transmit beam has an index, and the index is called a time-frequency resource index.
  • the time-frequency resource index may be, for example but not limited to, one or a combination of at least two of the following: a frame number, a subframe number, a slot number, and an orthogonal frequency division multiplexing (OFDM) symbol index number. , SS burst set index number, SS block index number, CSI-RS burst index number, CSI-RS resource index number, CSI-RS port number, and the like.
  • the time-frequency resource index may also be a logical index number of a time-frequency resource in a beam scanning period.
  • a logical index number can be set for each SS block in the SS burst set, ranging from 1 to L. If the beam scanning period is one CSI-RS burst, a logical index number can be set for each CSI-RS resource/port in the CSI-RS burst.
  • the terminal performs a beam detection process. Specifically, the terminal receives a plurality of reference signals transmitted by the network device, for example, each transmit beam, and then estimates, for example, the signal strength of the plurality of transmit beams of the network device according to the received reference signals.
  • the terminal may perform a joint according to the signal strength of the reference signal sent by the same transmit beam in multiple beam scanning periods to obtain a signal strength of the reference signal sent by the transmit beam (ie, The signal strength of the transmit beam), the application does not limit the specific implementation of the joint.
  • the terminal performs a beam reporting process. Specifically, the terminal reports the time-frequency resource index corresponding to the transmit beam with the higher signal strength, that is, the time-frequency resource index corresponding to the one or more transmit beams to the network device. Subsequently, the network device may select one or more transmit beams from the one or more transmit beams corresponding to the time-frequency resource index to transmit a control channel, a data channel, a sounding signal, and the like.
  • the network device may use multiple transmit beams to transmit reference signals on one time-frequency resource, and the terminal does not distinguish multiple transmit beams on the time-frequency resource, that is, the terminal may The transmit beam is treated as a transmit beam. If the terminal reports the index of the time-frequency resource to the network device, the network device confirms that the transmit beam corresponding to the index of the time-frequency resource reported by the terminal is the multiple transmit beams, and then uses all or part of the transmit beams for subsequent communication. .
  • the terminal may record a corresponding time-frequency resource index of one or more transmit beams with a higher signal strength, a signal strength of the one or more transmit beams, and receive a reference signal from the one or more transmit beams.
  • the information reported by the terminal may include: a time-frequency resource index, and a signal strength of the transmit beam corresponding to the time-frequency resource index.
  • the signal of the transmit beam is characterized by at least one of reference signal received power (RSRP) and reference signal received quality (RSRQ) of the reference signal transmitted on the transmit beam. strength.
  • the terminal may perform a beam reporting process when receiving a report command sent by the network device.
  • the network device may send a report to the terminal.
  • the network device may also send some configuration information of the information reported by the terminal to the terminal, such as, but not limited to, the number of reported beams, the resources used for reporting, and the reporting time.
  • the terminal can perform the beam reporting process autonomously.
  • the reported content can be transmitted in uplink control information (UCI).
  • UCI uplink control information
  • the terminal may trigger a beam reporting process. For example, if the signal strength of the currently detected transmit beam is higher than a certain threshold or higher than the signal strength of the currently used transmit beam, the beam reporting process is triggered. For example, if a beam failure occurs, a beam recovery request is initiated and new beam information is reported (ie, the trigger beam reporting process).
  • the network device can generate 3 transmit beams, labeled as transmit beams 1, 2, 3, respectively. Then, the network device transmits a reference signal in the SS block1 of each SS block set through the transmit beam 1, and transmits a reference signal in the SS block 2 of each SS block set through the transmit beam 2, and transmits the beam 3 in the SS of each SS block set through the transmit beam 3.
  • Block3 sends a reference signal. After determining the signal strength of the transmit beam 2 and the transmit beam 3 by using the beam detection process, the terminal feeds back the index of the SS block 2 and the signal strength of the corresponding transmit beam to the network device, and the index of the SS block 3 and its corresponding transmit beam Signal strength.
  • the network device may determine, for example, according to the signal strength of the transmit beam corresponding to the index of the SS block 2 and the index of the SS block 3, to subsequently transmit the control channel, the data channel, the sounding signal, and the like by using the transmit beam 2.
  • the network device may reconfigure the time-frequency resources of the beam scan during the beam alignment process.
  • how the terminal performs the reporting process and how the network device performs the beam determining process is a technical problem to be solved by the present application.
  • the present application provides a method and apparatus for reporting beam information, and a method and apparatus for determining beam information.
  • FIG. 3 is a schematic diagram of a method for reporting and determining beam information provided by the present application. specific:
  • S201 to S202 Reference may be made to S101 to S102 in the above, but the present application is not limited thereto.
  • the network device reconfigures the time-frequency resource of the beam scanning for the terminal. That is, the network device sends a reconfiguration message to the terminal, where the reconfiguration message is used to indicate the time-frequency resource of the beam scanning reconfigured by the base station.
  • the reconfiguration message may include information about time-frequency resources of the re-configured beam scan, such as a correspondence between time-frequency resources and transmit beams of the re-configured beam scan.
  • the present application does not limit the time-frequency resources of the network device for reconfiguring the beam scanning of the terminal.
  • the time-frequency resource for the network device to reconfigure the beam scanning for the terminal may be, for example, but not limited to, reconfiguring the period of the SS burst set, reconfiguring the number and/or location of the SS block in an SS burst set, etc.; reconfiguring the time-frequency resource of the beam scanning Corresponding relationship with the transmit beam, for example, before reconfiguration, time-frequency resource 1 corresponds to transmit beam 1, time-frequency resource 2 corresponds to transmit beam 2, time-frequency resource 3 corresponds to transmit beam 3, and after reconfiguration, time-frequency resource 1 Corresponding to the transmit beam 3, the time-frequency resource 2 corresponds to the transmit beam 2, and the time-frequency resource 3 corresponds to the transmit beam 1.
  • the terminal determines that the network device reconfigures the time-frequency resource of the beam scanning for the terminal.
  • the terminal receives the reconfiguration message, that is, the terminal determines that the network device reconfigures the time-frequency resource of the beam scanning for the terminal.
  • the terminal Before the reconfiguration effective time starts, the terminal may perform beam detection according to, for example, but not limited to, the beam detection procedure provided above, and record the detection result to determine a time-frequency resource index corresponding to the transmit beam that meets the preset condition before reconfiguration.
  • the terminal may perform beam detection according to the beam detection procedure provided above, for example, but not limited to, and re-record the detection result to determine a time-frequency resource index corresponding to the transmit beam that meets the preset condition after reconfiguration. .
  • the terminal sends the indication information to the network device, where the indication information is used to indicate the time-frequency resource index corresponding to the transmit beam that meets the preset condition before the reconfiguration, or is used to indicate the time corresponding to the transmit beam that meets the preset condition after the reconfiguration. Frequency resource index.
  • the terminal may send the indication information to the network device when receiving the report command sent by the network device, or may send the indication information to the network device autonomously, and the related description may refer to the above, and details are not described herein again.
  • the transmit beam that meets the preset condition may be a transmit beam with a higher signal strength.
  • the specific implementation is not limited in this application. For example, reference may be made to Embodiment 5 below.
  • the network device receives the indication information sent by the terminal, and determines a transmit beam corresponding to the time-frequency resource index indicated by the indication information.
  • the network device may select one or more transmit beams from the transmit beams corresponding to one or more time-frequency resource indexes indicated by the indication information to transmit a control channel, a data channel, a sounding signal, and the like.
  • the network device determines the correspondence between the transmit beam and the time-frequency resource index according to the reconfiguration.
  • the transmit beam corresponding to the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmit beam that meets the preset condition before the re-configuration.
  • the network device determines the correspondence between the transmit beam and the time-frequency resource index according to the reconfiguration.
  • the transmit beam corresponding to the time-frequency resource index indicated by the indication information.
  • the embodiment provides a method for reporting and determining beam information, and specifically provides a technical solution for reporting a time-frequency resource index by a terminal after the network device reconfigures the time-frequency resource of the beam scanning in the beam scanning process, and the network The device determines a technical solution for the subsequent use of the transmit beam used to transmit signals to the terminal.
  • T1 is the moment when the terminal determines the reconfiguration, that is, the moment when the terminal receives the reconfiguration message sent by the network device. It can be understood that, when the transmission time of the reconfiguration information is not considered, the moment when the terminal receives the reconfiguration message is the moment when the network device sends the reconfiguration message.
  • T2 is the effective time at which the terminal determines the reconfiguration.
  • the effective time of the reconfiguration message may be, for example but not limited to, defined as a time period from the receipt of the reconfiguration message by the terminal.
  • T2 is greater than t1.
  • T3 is a time at which the terminal receives an instruction to instruct the terminal to transmit the indication information. It can be understood that, in a case where the transmission time of the instruction indicating the terminal to send the indication information is not considered, the moment when the terminal receives the signaling is the time when the network device sends the signaling.
  • the instruction instructing the terminal to send the indication information is the reporting instruction described above.
  • T4 is the time at which the terminal sends the indication information. Specifically, it may be a time when the terminal sends the indication information to the network device after receiving the report command sent by the network device, or may be a time when the terminal sends the indication information to the network device spontaneously. It can be understood that, in the scenario that the terminal sends the indication information to the network device after receiving the report command sent by the network device, t4 may be the time when the network device notifies the terminal to report the indication information, and t4 may be, for example, but not limited to, carried in the report instruction. Sent to the terminal. In a scenario in which the terminal sends the indication information to the network device spontaneously, t4 may be the time when the terminal itself determines the report indication information.
  • the parameter t1 may be involved. , t2 and t4.
  • the parameter t3 is involved.
  • the parameter t3 may not be involved, and t4 is greater than t3.
  • Mode 1 When t3-t1 is less than or equal to T1, the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition before reconfiguration. When t3-t1 is greater than T1, the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after reconfiguration.
  • Mode 2 When t3-t2 is less than or equal to T2, the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition before reconfiguration. When t3-t2 is greater than T2, the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after reconfiguration.
  • Manner 3 When t4-t1 is less than or equal to T3, the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition before reconfiguration. When t4-t1 is greater than T3, the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after reconfiguration.
  • Mode 4 When t4-t2 is less than or equal to T4, the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition before reconfiguration. When t4-t2 is greater than T4, the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after reconfiguration.
  • T1, T2, T3, and T4 are each a preset time period. T1, T2, T3 and T4 are all greater than zero.
  • the specific values of T1, T2, T3 and T4 are not limited in this application. The longer the beam scanning time is, the higher the probability that the transmitting beam sent by the network device to the terminal according to the time-frequency resource index reported by the terminal is a transmitting beam with a higher signal strength. Therefore, the specific values of T1, T2, T3, and T4 may be determined according to the probability, for example, but not limited to, that is, T1, T2, T3, and T4 may ensure that the beam scanning time is long enough to ensure that after the reconfiguration takes effect. A time period set by the probability.
  • each of T1, T2, T3, and T4 may be greater than or equal to N beam measurement periods, and N is an integer greater than or equal to 1.
  • T1, T2, T3 and T4 may not be integer multiples of the beam measurement period.
  • T1, T2, T3, and T4 may be, for example but not limited to, any of the following: number of frames, number of subframes, number of slots, number of OFDM symbols, seconds, milliseconds, and the like.
  • the time-frequency resource index indicated by the indication information is a time-frequency resource index corresponding to a transmit beam that satisfies a preset condition before reconfiguration, or a transmit beam that satisfies a preset condition after reconfiguration.
  • the corresponding time-frequency resource index may be determined by, for example, but not limited to, mode 3 or mode 4 described above.
  • the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmit beam that meets the preset condition before re-configuration, or the time-frequency resource index corresponding to the transmit beam that meets the preset condition after re-configuration. For example, but not limited to, it is determined by any of the above modes 1 to 4.
  • the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmit beam that meets the preset condition before re-configuration, or the time-frequency resource index corresponding to the transmit beam that meets the preset condition after re-configuration. For example, but not limited to, it is determined by any of the above modes 1 to 4.
  • the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmit beam that meets the preset condition before re-configuration, or the time-frequency resource index corresponding to the transmit beam that meets the preset condition after re-configuration. For example, but not limited to, determined by the above mode 1, mode 3 or mode 4.
  • t3 can also be less than or equal to t1.
  • the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmit beam that meets the preset condition before re-configuration, or is it satisfied after re-configuration.
  • the time-frequency resource index corresponding to the conditional transmit beam may be determined by, for example, but not limited to, by the above manner 1, the mode 3, or the mode 4.
  • FIG. 4a to FIG. 4b, FIG. 5a to FIG. 5c, and FIG. 6 are only examples of the applicable scenarios of the technical solutions provided by the present application, and do not constitute a limitation of the applicable scenarios of the technical solutions provided by the present application.
  • the network device can obtain the signal transmission time between the terminal and the network device in the manner of the prior art, the above-mentioned t1, t2, t3, and t4 can be known for both the terminal and the network device.
  • the time-frequency resource index indicated by the indication information is the time-frequency resource index before reconfiguration or the time-frequency resource index after reconfiguration, which may be a network device and Pre-agreed between the terminals, for example, agreed in advance by agreement.
  • the network device may also be notified to the terminal by signaling, which may be, for example but not limited to, at least one of RRC signaling, MAC signaling, and DCI.
  • the value of one or more of the foregoing T1, T2, T3, and T4 may be pre-agreed between the network device and the terminal, for example, pre-agreed by the protocol.
  • the network device may also be notified to the terminal by signaling, which may be, for example but not limited to, at least one of RRC signaling, MAC signaling, and DCI.
  • the terminal determines the time-frequency resource index before re-configuration, or the time after re-configuration, by comparing the difference between the difference between the partial time points in t1, t2, t3, and t4 and the preset time period.
  • Frequency resource index The time-frequency resource index indicated by the received indication information is the time-frequency resource index before the re-configuration, and the time-frequency resource index indicated by the received indication information may be determined according to the relationship between the difference between the corresponding time points and the corresponding preset time period. Or reconfigured time-frequency resource index. In this way, by appropriately setting the size of the corresponding preset time segment, it is helpful to improve the probability that the transmit beam corresponding to the time-frequency resource index reported by the terminal is a transmit beam with a higher signal strength.
  • the indication information may include an indication field, where the indication field is used to indicate that the time-frequency resource index indicated by the indication information is a time-frequency resource index corresponding to the transmit beam that meets the preset condition before re-configuration, or the transmission that meets the preset condition after reconfiguration The time-frequency resource index corresponding to the beam.
  • the indication field occupies 1 bit.
  • the binary number "0" is used to indicate that the time-frequency resource index indicated by the indication information is a time-frequency resource index corresponding to the transmit beam that satisfies the preset condition before reconfiguration.
  • the binary number "1" indicates that the time-frequency resource index indicated by the indication information is a time-frequency resource index corresponding to the transmit beam that meets the preset condition after reconfiguration. For example, if the indication information includes the index of SS block1, and the indication field is “0”, it indicates that the indication information indicates SS block1 before reconfiguration. If the indication information includes the index of SS block1, and the indication field is "1", it indicates that the indication information indicates the reconfigured SS block1.
  • the terminal indicates, by using the indication field in the indication information, that the reported time-frequency resource index is a time-frequency resource index corresponding to the transmit beam that meets the preset condition before re-configuration or after re-configuration.
  • the network device may determine, according to the indication field, a correspondence between a transmit beam and a time-frequency resource index before or after reconfiguration, and determine a transmit beam corresponding to the time-frequency resource index reported by the terminal. .
  • the time-frequency resource index corresponding to the transmit beam that meets the preset condition before the re-configuration of the terminal is re-configured, and the time-frequency resource index corresponding to the time-frequency resource index reported by the terminal is improved by setting a reasonable trigger condition.
  • the transmit beam is the probability of a transmitted beam with a higher signal strength.
  • the method may further include: the network device sending, to the terminal, information indicating a time-frequency resource index corresponding to the transmit beam that meets the preset condition before the terminal reports the reconfiguration.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition before reconfiguration.
  • the method may further include: the network device sending, to the terminal, information indicating a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the terminal reports the reconfiguration.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • This embodiment may be applied to a scenario in which the terminal sends the indication information to the network device after the network device sends the report command.
  • the network device determines, for example, but not limited to, transmitting, to the terminal, the information indicating the time-frequency resource index corresponding to the transmit beam that meets the preset condition before the terminal reports the reconfiguration, or the indication, according to any one of the embodiments.
  • the terminal reports the information of the time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • the network device instructs the terminal to report the time-frequency resource index corresponding to the transmit beam that meets the preset condition before the re-configuration, or the time-frequency resource index corresponding to the transmit beam that meets the preset condition after the terminal reports the reconfiguration. In this way, terminal computational complexity can be saved.
  • FIG. 7 is a schematic diagram of a method for reporting and determining beam information provided by the present application. specific:
  • S301 to S304 Reference may be made to S201 to S204 in the above, but the present application is not limited thereto.
  • the terminal sends the indication information at time t1/+Tr1/after or t2+Tr2 time/after.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • T1 is the time at which the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • both Tr1 and Tr2 are preset time periods.
  • the terminal does not transmit the indication information in the time window Tr1 starting at time t1, and transmits the indication information at or after the time window Tr1 starting at time t1.
  • the terminal does not transmit the indication information in the time window Tr2 starting at time t2, and transmits the indication information at time or after the time window Tr2 started at time t2.
  • Both Tr1 and Tr2 are preset time periods. Both Tr1 and Tr2 are greater than zero.
  • the specific values of Tr1 and Tr2 are not limited in the present application. The longer the beam scanning time is, the higher the probability that the transmitting beam sent by the network device to the terminal according to the time-frequency resource index reported by the terminal is a transmitting beam with a higher signal strength. Therefore, the specific values of Tr1 and Tr2 may be determined, for example, but not limited to, according to the probability, that is, Tr1 and Tr2 may be a time that can ensure that the beam scanning time is long enough to ensure the probability after the reconfiguration takes effect. segment.
  • both Tr1 and Tr2 may be greater than or equal to N beam measurement periods, and N is an integer greater than or equal to 1.
  • Tr1 and Tr2 may not be integer multiples of the beam measurement period.
  • Tr1 and Tr2 may be, for example but not limited to, any of the following: number of frames, number of subframes, number of slots, number of OFDM symbols, seconds, milliseconds, and the like.
  • Which of the above methods is used to send the indication information between the terminal and the network device may be pre-agreed between the network device and the terminal, for example, pre-agreed by the protocol.
  • the network device may also be notified to the terminal by signaling, which may be, for example but not limited to, at least one of RRC signaling, MAC signaling, and DCI.
  • Tr1 and Tr2 may be pre-agreed between the network device and the terminal, for example, agreed in advance by a protocol.
  • the network device may also be notified to the terminal by signaling, which may be, for example but not limited to, at least one of RRC signaling, MAC signaling, and DCI.
  • the terminal after determining a time period of the reconfiguration time, or determining a time period of the reconfiguration effective time, the terminal reports the time-frequency resource corresponding to the transmit beam that meets the preset condition after the reconfiguration. index.
  • the beam scanning time is long enough after the reconfiguration takes effect, so that the transmitting beam that is sent by the network device to the terminal according to the time-frequency resource index reported by the terminal is a signal.
  • the probability of a higher intensity transmit beam is higher, which improves system performance.
  • FIG. 8 is a schematic diagram of a method for reporting and determining beam information provided by the present application. specific:
  • S401 to S404 Reference may be made to S201 to S204 in the above, but the present application is not limited thereto.
  • the network device sends a report command to the terminal at the time t1/+Tr1 time/after or t2+Tr2 time/after, wherein the report command is used to instruct the terminal to send the indication information, where the indication information is used to indicate that the preset condition is met after reconfiguration
  • T1 is the time at which the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • both Tr1 and Tr2 are preset time periods. In other words, the network device does not transmit a report command in the time window Tr1 starting at time t1 or in the time window Tr2 starting at time t2.
  • the reporting instruction may carry the time when the network device notifies the terminal to report the indication information, that is, the time t4 described above.
  • the terminal receives the reporting instruction, and sends the indication information to the network device at the reporting time indicated by the reporting instruction, that is, the time t4 described in the foregoing, where the indication information is used to indicate the time corresponding to the transmission beam that meets the preset condition after the reconfiguration. Frequency resource index.
  • the network device sends a reporting instruction after a period of time when the terminal determines the reconfiguration, or after the terminal determines a time period of the reconfiguration effective time, to indicate that the terminal meets the preset condition after sending the reconfiguration.
  • the time-frequency resource index corresponding to the transmit beam is a signal.
  • FIG. 9 is a schematic diagram of a method for reporting and determining beam information provided by the present application. specific:
  • S501 to S504 Reference may be made to S201 to S204 in the above, but the present application is not limited thereto.
  • t5-t1 is less than or equal to Tu1
  • the terminal sends the indication information at time t1+Tu1.
  • the terminal transmits the indication information at time t2+Tu2.
  • the indication information is used to indicate a time-frequency resource index corresponding to the transmit beam that meets the preset condition after the reconfiguration.
  • T1 is the time when the terminal determines the reconfiguration
  • t2 is the effective time at which the terminal determines the reconfiguration
  • t5 is the time when the network device notifies the terminal to send the indication information.
  • Both Tu1 and Tu2 are preset time periods.
  • Both Tu1 and Tu2 are preset time periods. Both Tu1 and Tu2 are greater than zero.
  • the specific values of Tu1 and Tu2 are not limited in this application. The longer the beam scanning time is, the higher the probability that the transmitting beam sent by the network device to the terminal according to the time-frequency resource index reported by the terminal is a transmitting beam with a higher signal strength. Therefore, the specific values of Tu1 and Tu2 may be determined according to the probability, for example, but not limited to, that is, Tu1 and Tu2 may be a time that can ensure that the beam scanning time is long enough to ensure the probability after the reconfiguration takes effect. segment.
  • both Tu1 and Tu2 may be greater than or equal to N beam measurement periods, and N is an integer greater than or equal to 1.
  • Tu1 and Tu2 may not be integer multiples of the beam measurement period.
  • Tu1 and Tu2 may be, for example but not limited to, any of the following: number of frames, number of subframes, number of slots, number of OFDM symbols, seconds, milliseconds, and the like.
  • T5 is the time when the network device notifies the terminal to send the indication information. This embodiment may be applied to a scenario in which the terminal sends the indication information to the network device after the network device sends the report command. If t5-t1 is greater than Tu1, the terminal transmits an indication message at time t5. Alternatively, if t5-t2 is greater than Tu2, the terminal transmits an indication message at time t5. In both cases, the concept of t4 is the same as t5.
  • the terminal transmits the indication information at time max ⁇ t5, (t1+Tu1) ⁇ .
  • the indication information is transmitted at time max ⁇ t5, (t2+Tu2) ⁇ .
  • the beam can be used.
  • a measurement time window can include multiple beam measurement periods.
  • the number of beam measurement periods included in the measurement time window may be specified in the protocol, or may be configured by the network device to the terminal through signaling.
  • the measurement time window may be, for example but not limited to, any of the following: number of frames, number of subframes, number of slots, number of OFDM symbols, seconds, milliseconds, number of SS burst sets, number of CSI-RS bursts, and the like.
  • the time difference between the start times of two adjacent measurement time windows is the measurement time interval.
  • Method 1 Determine the available beam by a measurement time window. Specifically, the terminal combines (or filters) the signal strength of the reference signal from a transmit beam obtained in each beam measurement period in a measurement time window before the current time from the current time to determine whether the transmit beam is Available beam. As shown in Figure 10. Specifically, whether one of the transmit beams is an available beam can be determined by one of the following methods:
  • the terminal determines that the signal strength of the reference signal from a transmit beam obtained in a measurement time window before the current time starts from the current time, and continuously exceeds a certain threshold value for N consecutive times, the transmission beam is determined. Is available beam.
  • the threshold value corresponding to the SS reference reference signal and the threshold corresponding to the CSI-RS reference signal may be different, and the value of the N and the threshold may be specified by a protocol, or may be configured by a network device. .
  • the reference value may be, for example but not limited to, any one of the following: an average of signal strength, a minimum of signal strength, a maximum of signal strength, a variance of signal strength, and a weighted average of signal strength.
  • the reference value of the reference signal is the variance of the signal strength, the reference value of the reference signal satisfies the preset criterion, and the reference value of the reference signal may be less than or equal to a threshold value; if the reference value of the reference signal is other types, the reference signal is The reference value satisfies the preset criterion, which may be that the reference value of the reference signal is greater than or equal to a threshold value.
  • One or more of the type of reference value, the preset criterion, and the threshold may be specified by the protocol or configured by the network device to the terminal.
  • Method 2 Determine the available beams by multiple measurements. Specifically, the terminal combines (or filters) the signal strength of the reference signal from one transmit beam in a measurement time window before the current time from the current time interval every measurement time interval x. The terminal assumes that the transmit beam is used to transmit the PDCCH, and then obtains a BLER of the hypothesized PDCCH according to the filtered signal strength. If the BLER measured according to the transmit beam is consecutively less than or equal to a threshold, the transmit beam is determined to be available. Beam. As shown in Figure 11.
  • the terminal in a measurement time window, if the BLER is less than the threshold Qin, the terminal, for example, the physical layer of the terminal generates an in-sync indication; if the BLER is greater than the threshold Qout, the terminal, for example, the physical layer of the terminal generates an out-of-sync. Instructions. If the terminal continuously generates BR-N 311 in-sync indications, it is determined that the transmit beam is an available beam.
  • the Qin, Qout, BR-N311, and measurement time interval x are values specified by the network device configuration or protocol.
  • the measurement time interval x may be a frame number, a number of slots, an OFDM symbol number, a second, a millisecond, an SS burst set number, a CSI-RS burst number, and the like.
  • the physical layer of the terminal may report the generated in-sync indication or out-sync indication to a higher layer of the terminal, such as layer 2 or layer 3.
  • the physical layer of the terminal may report the same result as the last measurement, or the terminal reports a special other than in-sync and out-of-sync. Status indication.
  • the technical solution provided in this embodiment can be applied to a scenario in which an available beam is determined before reconfiguration.
  • the signal strength used for the joint is the signal strength measured before the reconfiguration. It can also be applied to scenarios where the available beams are determined after reconfiguration, in which case the signal strength for the joint is the signal strength measured after reconfiguration.
  • the steps performed by the terminal in the technical solution provided above may be performed by a network device, in which case the steps performed by the network device in the technical solution provided above may be performed. Executed by the terminal.
  • the transmitting beam described above refers to the transmitting beam of the terminal, and other examples are not. One by one.
  • each network element such as a network device or a terminal.
  • each network element such as a network device or a terminal.
  • it includes hardware structures and/or software modules corresponding to the execution of the respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiment of the present application may divide a function module into a network device or a terminal according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner. The following is an example of dividing each functional module by using corresponding functions.
  • the embodiment of the present application further provides a terminal.
  • the terminal can be used to perform the steps performed by the terminal in any of the figures in FIG. 3 and FIGS. 7-9.
  • Figure 12 shows a simplified schematic diagram of the terminal structure. It is convenient for understanding and illustration.
  • the terminal uses a mobile phone as an example.
  • the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing communication protocols and communication data, and controlling terminals, executing software programs, processing data of software programs, and the like.
  • Memory is primarily used to store software programs and data.
  • the RF circuit is mainly used for the conversion of the baseband signal and the RF signal and the processing of the RF signal.
  • the antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user. It should be noted that some types of terminals may not have input and output devices.
  • the memory and the processor may be integrated or independently.
  • the processor When the data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be independent of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit having the transceiving function can be regarded as the transceiving unit of the terminal, and the processor having the processing function can be regarded as the processing unit of the terminal.
  • the terminal includes a transceiver unit 1201 and a processing unit 1202.
  • the transceiver unit may also be referred to as a transceiver (including a transmitter and/or receiver), a transceiver, a transceiver, and the like.
  • the processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the transceiver unit 1201 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 1201 is regarded as a sending unit, that is, the transceiver unit 1201 includes a receiving unit and a sending unit.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit or the like.
  • the transmitting unit may also be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like.
  • the transceiving unit 1201 and the processing unit 1202 may be integrated or independently.
  • all the functions in the processing unit 1202 may be implemented in one chip, or may be partially integrated into one chip to implement another part of the function integration in another one or more chips, which is not limited in this application.
  • the transceiving unit 1201 is configured to perform the steps performed by the terminal in S201, S203, and/or S205 of FIG. 3, and/or other steps in the present application.
  • Processing unit 1202 is operative to perform S202 and/or S204 of FIG. 3, and/or other steps in the application.
  • the transceiving unit 1201 is configured to perform the steps performed by the terminal in S301, S303, and/or S305 of FIG. 7, and/or other steps in the present application.
  • Processing unit 1202 is operative to perform S302 and/or S304 of FIG. 7, and/or other steps in the application.
  • the transceiving unit 1201 is configured to perform the steps performed by the terminal in S401, S403, S405, and/or S406 of FIG. 8, and/or other steps in the present application.
  • Processing unit 1202 is operative to perform S402 and/or S404 of FIG. 8, and/or other steps in the application.
  • the transceiving unit 1201 is configured to perform the steps performed by the terminal in S501, S503, and/or S505 in FIG. 9, and/or other steps in the present application.
  • Processing unit 1202 is operative to perform S502 and/or S504 of FIG. 9, and/or other steps in the application.
  • the embodiment of the present application further provides a network device, such as a base station.
  • Figure 13 shows a schematic diagram of a simplified base station structure.
  • the base station includes a 1301 part and a 1302 part.
  • the 1301 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals; the 1302 part is mainly used for baseband processing and control of base stations.
  • the 1301 portion may be generally referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver.
  • the portion 1302 is typically the control center of the base station and may be generally referred to as a processing unit for controlling the base station to perform the steps performed by the base station (i.e., the serving base station) of FIG. 13 above.
  • a processing unit for controlling the base station to perform the steps performed by the base station (i.e., the serving base station) of FIG. 13 above.
  • the transceiver unit of the 1301 part which may also be called a transceiver, or a transceiver, etc., includes an antenna and a radio frequency unit, wherein the radio frequency unit is mainly used for radio frequency processing.
  • the device for implementing the receiving function in the 1301 portion may be regarded as a receiving unit
  • the device for implementing the transmitting function may be regarded as a transmitting unit, that is, the 1301 portion includes a receiving unit and a transmitting unit.
  • the receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
  • the 1302 portion may include one or more boards, each of which may include one or more processors and one or more memories for reading and executing programs in the memory to implement baseband processing functions and for base stations control. If multiple boards exist, the boards can be interconnected to increase processing power. As an optional implementation manner, multiple boards share one or more processors, or multiple boards share one or more memories, or multiple boards share one or more processes at the same time.
  • the memory and the processor may be integrated or independently.
  • the 1301 portion and the 1302 portion may be integrated or may be independently arranged.
  • all the functions in the 1302 part may be integrated in one chip, or some functions may be integrated in one chip to realize another part of function integration in one or more other chips, which is not limited in this application.
  • the processing unit is operative to perform S206 of FIG. 3, and/or other steps in the application.
  • the transceiver unit is operative to perform the steps performed by the network device in S201, S203, and/or S205 of FIG. 3, and/or other steps in the application.
  • the processing unit is operative to perform S306 of Figure 7, and/or other steps in the application.
  • the transceiver unit is operative to perform the steps performed by the network device in S301, S303, and/or S305 of FIG. 7, and/or other steps in the application.
  • the processing unit is operative to perform S407 of Figure 8, and/or other steps in the application.
  • the transceiver unit is operative to perform the steps performed by the network device in S401, S403, S405, and/or S406 of FIG. 8, and/or other steps in the present application.
  • the processing unit is operative to perform S506 of FIG. 9, and/or other steps in the application.
  • the transceiver unit is operative to perform the steps performed by the network device in S501, S503, and/or S505 of FIG. 9, and/or other steps in the application.
  • the application also provides a computer program product that, when run on a computer, causes the computer to perform any of the methods provided above.
  • the present application also provides a communication chip in which instructions are stored that, when run on a network device or terminal, cause the network device or terminal to perform the methods provided above.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)

Landscapes

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

Abstract

Des modes de réalisation de la présente invention concernent le domaine technique des communications, et concernent un procédé et un appareil pour rapporter des informations de faisceau, et un procédé et un appareil pour déterminer des informations de faisceau. Le procédé de rapport d'informations de faisceau peut comprendre les opérations suivantes : un terminal détermine qu'un dispositif réseau reconfigure une ressource temps-fréquence pour un balayage de faisceau pour le terminal; le terminal envoie des informations d'indication au dispositif de réseau, les informations d'indication étant utilisées pour indiquer un indice de ressource temps-fréquence correspondant à un faisceau d'émission satisfaisant une condition prédéfinie avant la reconfiguration, ou utilisé pour indiquer un indice de ressource temps-fréquence correspondant à un faisceau d'émission satisfaisant la condition prédéfinie après la reconfiguration. La solution technique peut être appliquée dans un scénario après qu'un dispositif de réseau, tel qu'une station de base, reconfigure une ressource temps-fréquence pour un balayage de faisceau pour un terminal.
PCT/CN2018/095189 2017-07-14 2018-07-10 Procédé et appareil de rapport d'information de faisceau, et procédé et appareil de détermination d'information de faisceau WO2019011248A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710579088.0A CN109257754B (zh) 2017-07-14 2017-07-14 一种上报及确定波束信息的方法和装置
CN201710579088.0 2017-07-14

Publications (1)

Publication Number Publication Date
WO2019011248A1 true WO2019011248A1 (fr) 2019-01-17

Family

ID=65001847

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/095189 WO2019011248A1 (fr) 2017-07-14 2018-07-10 Procédé et appareil de rapport d'information de faisceau, et procédé et appareil de détermination d'information de faisceau

Country Status (2)

Country Link
CN (1) CN109257754B (fr)
WO (1) WO2019011248A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114557014A (zh) * 2022-01-13 2022-05-27 北京小米移动软件有限公司 信息上报、信息接收方法、装置、设备及存储介质

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111586862A (zh) * 2019-02-15 2020-08-25 华为技术有限公司 信息指示的方法及装置
US20220182995A1 (en) * 2019-03-29 2022-06-09 Apple Inc. Reception (rx) beam sweep scale factor
CN111615190B (zh) * 2019-04-23 2023-01-10 维沃移动通信有限公司 处理方法及设备
CN111866919B (zh) * 2019-04-30 2022-02-25 中国信息通信研究院 一种基于数据调度的波束失败上报信息指示方法
CN117560103A (zh) * 2022-08-01 2024-02-13 维沃移动通信有限公司 感知处理方法、装置、终端及网络侧设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104184561A (zh) * 2014-01-13 2014-12-03 中兴通讯股份有限公司 预编码导频处理方法、装置、基站及终端
CN105210315A (zh) * 2013-05-07 2015-12-30 Lg电子株式会社 在无线通信系统中执行测量的方法及其设备
EP3174348A1 (fr) * 2014-07-24 2017-05-31 LG Electronics Inc. Procédé et appareil pour réguler la puissance de transmission
CN106797300A (zh) * 2014-10-10 2017-05-31 瑞典爱立信有限公司 用于动态csi反馈的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070127475A1 (en) * 2005-12-05 2007-06-07 Ravi Kuchibhotla Method and apparatus for switching nodes to a new packet data connection point
CN104955070B (zh) * 2014-03-26 2018-08-10 中国移动通信集团公司 一种载波重配方法及装置
RU2666267C2 (ru) * 2014-06-24 2018-09-06 Телефонактиеболагет Лм Эрикссон (Пабл) Беспроводное устройство, сетевой узел и способы для предоставления информации о состоянии канала (csi) в сети радиопередачи данных
CN106301669B (zh) * 2015-05-11 2019-05-03 工业和信息化部电信传输研究所 一种信道状态信息测量反馈方法
CN106937325B (zh) * 2015-12-31 2020-11-27 华为技术有限公司 信道测量信息的反馈方法、用户设备及基站

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105210315A (zh) * 2013-05-07 2015-12-30 Lg电子株式会社 在无线通信系统中执行测量的方法及其设备
CN104184561A (zh) * 2014-01-13 2014-12-03 中兴通讯股份有限公司 预编码导频处理方法、装置、基站及终端
EP3174348A1 (fr) * 2014-07-24 2017-05-31 LG Electronics Inc. Procédé et appareil pour réguler la puissance de transmission
CN106797300A (zh) * 2014-10-10 2017-05-31 瑞典爱立信有限公司 用于动态csi反馈的方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114557014A (zh) * 2022-01-13 2022-05-27 北京小米移动软件有限公司 信息上报、信息接收方法、装置、设备及存储介质

Also Published As

Publication number Publication date
CN109257754B (zh) 2021-06-22
CN109257754A (zh) 2019-01-22

Similar Documents

Publication Publication Date Title
CN111972004B (zh) Scell bfr期间的用户设备接收机空间滤波器配置的方法和装置
US11856516B2 (en) Operation with power saving in connected mode discontinuous reception (C-DRX)
US11855740B2 (en) Link failure recovery method and related device
WO2019011248A1 (fr) Procédé et appareil de rapport d'information de faisceau, et procédé et appareil de détermination d'information de faisceau
WO2019029360A1 (fr) Procédé et dispositif de communication
WO2020228589A1 (fr) Procédé de communication et appareil de communication
WO2020038331A1 (fr) Procédé et appareil de détermination d'une ressource de liaison montante
WO2018228468A1 (fr) Procédé et dispositif de surveillance de liaison sans fil
WO2019137346A1 (fr) Procédé et dispositif terminal utilisés pour surveiller la qualité d'un canal
WO2018228532A1 (fr) Procédé de communication, terminal, et dispositif réseau
WO2019214382A1 (fr) Procédé de communication et dispositif de communication
CN112470415B (zh) 在不连续传输操作中节能的系统和方法
WO2019149072A1 (fr) Procédé et appareil de configuration de signal synchrone
WO2018210243A1 (fr) Procédé et dispositif de communication
WO2019157911A1 (fr) Procédé de gestion de faisceau, terminal, dispositif de réseau et support de stockage
EP3735039A1 (fr) Procédé et dispositif de transmission de relais
CN112368954B (zh) 用于不连续接收的链路恢复的系统和方法
WO2019157967A1 (fr) Procédé, appareil et système de détection de défaillance de faisceau
EP3542586A1 (fr) Utilisation opportuniste d'instances de drs dans des systèmes autonomes lte-u
CN116209044A (zh) 用于在功率节省模式下控制信道接收的系统和方法
WO2018202017A1 (fr) Procédé et dispositif de transmission d'informations
US11638319B2 (en) Handling radio link failure in cellular mesh networks
US20200170000A1 (en) Indication method and apparatus, and information determining method and apparatus
EP4002912A1 (fr) Procédé et dispositif de reprise après de défaillance de faisceau
JP7372951B2 (ja) 免許不要帯域において参照信号を取り扱うためのデバイスおよび方法

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: 18831574

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18831574

Country of ref document: EP

Kind code of ref document: A1