WO2019029562A1 - Procédé de récupération suite à une défaillance de faisceau et terminal utilisateur - Google Patents

Procédé de récupération suite à une défaillance de faisceau et terminal utilisateur Download PDF

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Publication number
WO2019029562A1
WO2019029562A1 PCT/CN2018/099369 CN2018099369W WO2019029562A1 WO 2019029562 A1 WO2019029562 A1 WO 2019029562A1 CN 2018099369 W CN2018099369 W CN 2018099369W WO 2019029562 A1 WO2019029562 A1 WO 2019029562A1
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Prior art keywords
reference signal
indicated
signal types
beam failure
measurement
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PCT/CN2018/099369
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English (en)
Chinese (zh)
Inventor
马玥
陈力
孙晓东
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维沃移动通信有限公司
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Publication of WO2019029562A1 publication Critical patent/WO2019029562A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present disclosure relate to the field of communications technologies, and in particular, to a beam failure recovery method and a user terminal.
  • Radio access technology standards such as Long Term Evolution (LTE)/Long Term Evolution System-Enhanced (LTE-A) are based on Multiple-Input Multiple-Output (MIMO) + Orthogonal Based on the Orthogonal Frequency Division Multiplexing (OFDM) technology.
  • MIMO technology utilizes the spatial freedom that multi-antenna systems can achieve to improve peak rate and system spectrum utilization.
  • MIMO Multiple-user MIMO
  • MU-MIMO Multi-User MIMO
  • TM-8 Transmission Mode 8
  • SU-MIMO single-user MIMO
  • 3GPP 3rd Generation Partnership Project
  • eFD-MIMO enhanced Full Dimension-Multiple Input Multiple Output
  • NR New Radio
  • Massive MIMO Massive MIMO
  • uses a large-scale antenna array which can greatly improve system frequency band utilization efficiency and support a larger number of access users. Therefore, major research organizations regard massive MIMO technology as one of the most promising physical layer technologies in the next generation of mobile communication systems.
  • digital-analog hybrid beamforming technology emerges, which is based on the traditional digital domain beamforming, adding a first-order beam assignment to the RF signal near the front end of the antenna system. shape.
  • Analog shaping enables a relatively coarse match between the transmitted signal and the channel in a relatively simple manner.
  • the dimension of the equivalent channel formed after the analog shaping is smaller than the actual number of antennas, so the required AD/DA conversion device, the number of digital channels, and the corresponding baseband processing complexity can be greatly reduced.
  • the residual interference of the analog shaped portion can be processed again in the digital domain to ensure the quality of the MU-MIMO transmission.
  • digital-analog hybrid beamforming is a compromise between performance and complexity. It has a high practical prospect in systems with high bandwidth and large number of antennas.
  • the system is upgraded to support the operating frequency bands above 6GHz, up to approximately 100GHz.
  • the high frequency band has a relatively rich idle frequency resource, which can provide greater throughput for data transmission.
  • 3GPP has completed the modeling of high-frequency channels.
  • the wavelength of high-frequency signals is short.
  • more antenna elements can be arranged on the same size panel, and beamforming technology is used to form more directivity.
  • the analog beamforming is transmitted at full bandwidth, and each polarization direction array element on the panel of each high frequency antenna array can only transmit analog beams in a time division multiplexed manner.
  • the shaping weight of the analog beam is achieved by adjusting the parameters of the device such as the RF front-end phase shifter.
  • the training of the simulated beamforming vector is usually performed by means of polling, that is, the array elements of each polarization direction of each antenna panel sequentially transmit the training signals in the time-division multiplexing manner at the appointed time. (ie, the candidate shape vector), the terminal reports the feedback beam after the measurement, and the network side uses the training signal to implement the analog beam transmission in the next transmission service.
  • the network side configures the beam reporting setting information for the user equipment (User Equipment, UE) through the high-level signaling, that is, the reporting setting, including the content information of the beam report and the time domain related message of the beam report (period, aperiodic , semi-continuous), frequency granularity information reported by the beam, and the like.
  • the content information in the beam reporting may include: at least one optimal transmit beam identification information selected by the UE, physical layer measurement results of the selected beam of the UE (eg, L1-RSRP), group information of the selected beam of the UE, and the like. .
  • Beam management is divided into downlink beam management and uplink beam management.
  • the mechanism of the downlink beam management is mainly determined by the channel state information reference signal (CSI-RS) configured by the base station, and the reference symbol received power (L1-RSRP) of the corresponding beam is measured by the user terminal.
  • the value is reported to the network, and the network maintains a dynamic beam set for use by obtaining measurements, adding or deleting corresponding beams.
  • the uplink performs a similar function by detecting a Channel Sounding Reference Signal (SRS) or a CSI-RS through a base station.
  • SRS Channel Sounding Reference Signal
  • the beam failure recovery mechanism is introduced, that is, the beam failure detection reference signal is monitored at the physical layer, and the quality of the reference signal is evaluated. Meet the beam failure trigger condition. This trigger condition is currently pending in 3GPP discussions.
  • the UE may send a beam failure recovery request to the base station, where the beam failure recovery request may include a new candidate beam recommended to the base station, and after receiving the beam failure recovery request, the base station may The UE sends response signaling, which may include switching to a new candidate beam, or restarting the beam search, or other indication.
  • the beam failure recovery mechanism can quickly switch to the beam pair link (BPL) to continue to transmit control messages and data to achieve fast beam recovery.
  • BPL beam pair link
  • the embodiment of the present disclosure provides a beam failure recovery method and a user terminal, which solves the problem of how to determine a beam failure and initiate a beam failure recovery request when a beam with at least two reference signal type indications configured in a beam set is lacking in the related art.
  • a beam failure recovery method including:
  • a user terminal including:
  • a determining module configured to determine one or at least two beam failures from a set of beams indicated by at least two reference signal types
  • a determining module configured to determine, according to the determined one or at least two beam failures, whether the beam failure recovery condition is met
  • a sending module configured to send a failure recovery request if the beam failure recovery condition is met.
  • a user terminal including: a processor, a memory, and a beam failure recovery program stored on the memory and operable on the processor, the beam failure recovery procedure being processed
  • the steps of the beam failure recovery method as described above are implemented when the device is executed.
  • a fourth aspect further provides a computer readable storage medium having a beam failure recovery program stored thereon, the beam failure recovery program being implemented by a processor to implement a beam failure recovery method as described above A step of.
  • FIG. 1 is a flowchart of a beam failure recovery method according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a beam failure recovery method according to another embodiment of the present disclosure.
  • FIG. 3 is a flowchart of a beam failure recovery method according to still another embodiment of the present disclosure.
  • FIG. 4 is a structural block diagram of a user terminal according to an embodiment of the present disclosure.
  • FIG. 5 is a structural block diagram of a user terminal according to another embodiment of the present disclosure.
  • the network side may refer to a base station, which may be a base station in a Global System of Mobile communication (GSM) or Code Division Multiple Access (CDMA) (Base Transceiver).
  • BTS may also be a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or may be an evolved Node B (eNB or eNodeB) in LTE.
  • NodeB Node B
  • WCDMA Wideband Code Division Multiple Access
  • eNB or eNodeB evolved Node B
  • It can also be a base station in a new radio access technical (New RAT or NR), or a relay station or an access point, or a base station in a 5th generation (5th generation, 5G) mobile communication network, etc. Not limited.
  • New RAT or NR new radio access technical
  • 5G 5th generation
  • the user terminal may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or other service data connectivity to the user, and a handheld device with wireless connection function. Or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network.
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal.
  • the access terminal, the user terminal, the user agent, and the user device are not limited herein.
  • FIG. 1 a flowchart of a beam failure recovery method according to an embodiment is shown.
  • the execution body of the method is a user terminal, and the specific steps are as follows:
  • Step 101 Determine one or at least two beam failures from the set of beams indicated by the at least two reference signal types.
  • the at least two types of reference signals may include: SS Block and CSI-RS, wherein the SSB signal may indicate a wider beam, and the CSI-RS may indicate a narrower beam, and is of course not limited thereto.
  • CSI-RS is a concept already existing in Long Term Evolution (LTE).
  • LTE Long Term Evolution
  • NR New Radio
  • the SS Block signal is a newly introduced sync signal in NR, which is transmitted periodically and its period is configurable.
  • the SS Block can also indicate the beam.
  • the SS Block can indicate a wider beam, while the CSI-RS can indicate a narrower beam.
  • both wide and narrow beams can be indicated by a reasonable configuration.
  • the user equipment may first determine beam measurement values of one or more beams in the beam set, where the beam set includes at least two types of reference signal type indication beams; and then according to one or more beams.
  • the beam measurement determines that one or at least two beams fail.
  • the number of beams in the beam set can be configured by the network side.
  • the number of beams indicated by different reference signal types in the beam set is configured by the network side to be different values, or the number of beams indicated by different reference signal types in the beam set is configured by the network side to be the same value.
  • beam failure can be determined in the following ways:
  • Manner 1 In the second time window, detecting a beam measurement value indicated by one of the reference signal types (for example, SS Block or CSI-RS) preset in at least two types of reference signals; if the beam measurement value is lower than the pre-measurement Setting a preset measurement threshold value indicated by a reference signal type, determining that a predetermined one of the reference signal type indicates a beam failure;
  • the reference signal types for example, SS Block or CSI-RS
  • the beam measurement value indicated by any reference signal type is detected in the second time window; if the beam measurement value is lower than the preset measurement threshold, determining the beam failure corresponding to the beam measurement value ;
  • Manner 3 A beam measurement value indicated by at least two types of reference signal types is detected in a second time window; if the beam measurement values are lower than a preset measurement threshold value, determining a beam corresponding to the beam measurement value failure;
  • Manner 4 detecting, in a second time window, a beam measurement value indicated by one of at least two reference signal types or at least two reference signal type indications; if the one or at least two reference signal types indicate beam measurement If the number of statistics whose value is lower than the preset measurement threshold is greater than the preset threshold, the beam failure corresponding to the beam measurement is determined.
  • the beam failure count may be performed to obtain a beam failure count value, and then the beam failure recovery condition may be determined according to the beam failure count value.
  • the preset measurement threshold is an absolute threshold or a relative threshold.
  • the preset measurement threshold value includes at least one or more of the following: a SINR (Signal to Interference plus Noise Ratio) threshold, an RSRP (Reference Signal Received Power) threshold, and an RSRQ (Reference Signal Receiver) Quality) threshold, of course, is not limited to this.
  • SINR Signal to Interference plus Noise Ratio
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Receiver Quality
  • the preset measurement thresholds indicated by different reference signal types are different, or the preset measurement thresholds indicated by different reference signal types are the same.
  • Step 102 Determine, according to the determined one or at least two beam failures, whether the beam failure recovery condition is met. If yes, go to step 103; otherwise, end the process.
  • whether the beam failure recovery condition is met may be determined by: if the number of the beam measurement values indicated by all reference signal types in the beam set is lower than or equal to the preset measurement threshold. When the number of thresholds is exceeded, or if the beam measurements indicated by all reference signal types in the beam set are lower than the preset measurement threshold, it is determined that the beam failure recovery condition is satisfied.
  • the beam failure recovery condition is not specifically limited in the embodiment of the present disclosure.
  • Step 103 Send a failure recovery request.
  • the failure recovery request may include: a new candidate beam recommended to the base station, and after receiving the failure recovery request, the base station sends a response signaling to the terminal, which may include switching to a new candidate beam, or Restart beam search, or other indications.
  • the beam failure recovery request may be triggered according to the beam failure condition indicated by the different reference signal types in the beam set indicated by the different reference signal types, and the beam is satisfied in the 5G and subsequent evolved communication systems.
  • Various needs for failure recovery may be triggered according to the beam failure condition indicated by the different reference signal types in the beam set indicated by the different reference signal types, and the beam is satisfied in the 5G and subsequent evolved communication systems.
  • FIG. 2 a flowchart of a beam failure recovery method of another embodiment is shown.
  • the execution body of the method is a user terminal.
  • the reference signal indication type of the beam failure needs to be explicitly determined. as follows:
  • Step 201 Determine a reference signal indication type used to determine a beam failure.
  • the reference signal indication type comprises: indicating that a reference signal type for determining beam failure is used, and/or indicating that at least two reference signal types for determining beam failure are used.
  • the at least two types of reference signals may include: SS Block and CSI-RS, wherein the SS Block signal may indicate a wider beam, and the CSI-RS may indicate a narrower beam, and is of course not limited thereto.
  • Step 202 Determine beam measurement values of one or more beams in the beam set according to the reference signal indication type
  • the number of beams indicated by different reference signal types in the beam set is indicated by the network side as different values, or the number of beams indicated by different reference signal types in the beam set is indicated by the network side as one same value.
  • Step 203 Determine, according to beam measurement values of one or more beams, that one or at least two beams fail.
  • the beam failure may be determined in step 203 by:
  • Manner 1 detecting, in a second time window, a beam measurement value of a reference signal type (for example, SS Block or CSI-RS) of the at least two reference signal types; if the beam measurement value is lower than Determining a preset measurement threshold value indicated by a reference signal type, determining that a predetermined one of the reference signal type indicates a beam failure;
  • a reference signal type for example, SS Block or CSI-RS
  • the beam measurement value indicated by any reference signal type is detected in the second time window; if the beam measurement value is lower than the preset measurement threshold, determining the beam failure corresponding to the beam measurement value ;
  • Manner 3 The beam measurement value indicated by the at least two reference signal types is detected in the second time window; if the beam measurement value is lower than the preset measurement threshold, determining a beam failure corresponding to the beam measurement value ;
  • Manner 4 detecting, in a second time window, a beam measurement value indicated by one of at least two reference signal types or at least two reference signal type indications; if the one or at least two reference signal types indicate beam measurement If the number of statistics whose value is lower than the preset measurement threshold is greater than the preset threshold (for example, the preset threshold is greater than or equal to 1), the beam failure corresponding to the beam measurement is determined.
  • the beam failure count may be performed to obtain a beam failure count value, and then the beam failure recovery condition may be determined according to the beam failure count value.
  • the preset measurement threshold value in the foregoing manners 1 to 4 may be an absolute threshold value or a relative threshold value.
  • the preset measurement threshold in the foregoing manners 1 to 4 includes at least one or more of the following: an SINR threshold, an RSRP threshold, and an RSRQ threshold.
  • the preset measurement threshold values indicated by different reference signal types are different, or the preset measurement threshold values indicated by different reference signal types are the same.
  • Step 204 Determine, according to the determined one or at least two beam failures, whether the beam failure recovery condition is met. If yes, go to step 205; otherwise, end the process.
  • the beam failure count is performed according to the determined one or at least two beam failures. If the beam failure count value is greater than or equal to the preset beam failure count threshold, it may be determined that the beam failure recovery condition is met, and the beam failure recovery condition includes a preset. Beam failure count threshold.
  • step 204 whether the beam failure recovery condition is met may be determined according to the following manner:
  • Manner 1 Perform a unified beam failure count on the beam failure indicated by the different reference signal types to obtain a beam failure count value. If the beam failure count value is greater than or equal to the first preset count threshold, determine that the beam failure is satisfied. Recovery condition
  • Manner 2 The beam failures indicated by different reference signal types are respectively counted, and the beam failure count value indicated by one or at least two reference signal types is obtained; if the beam failure count value indicated by one or at least two reference signal types is greater than Or equal to the second preset count threshold, it is determined that the beam failure recovery condition is satisfied.
  • Step 205 Send a failure recovery request.
  • the failure recovery request may include: a new candidate beam recommended to the base station, and after receiving the failure recovery request, the base station sends a response signaling to the terminal, which may include switching to a new candidate beam, or restarting the beam. Search, or other instructions, etc.
  • the beam failure recovery request may be triggered according to the beam failure condition indicated by the different reference signal types in the beam set indicated by the different reference signal types, and the beam is satisfied in the 5G and subsequent evolved communication systems.
  • Various needs for failure recovery may be triggered according to the beam failure condition indicated by the different reference signal types in the beam set indicated by the different reference signal types, and the beam is satisfied in the 5G and subsequent evolved communication systems.
  • another embodiment of the beam failure recovery method is further provided.
  • the present embodiment may be based on the foregoing embodiment shown in FIG. 2, and only the at least two references in the present embodiment are described below.
  • the process of adjusting the beam failure count may be referred to the embodiment shown in FIG. 2 and will not be repeated herein.
  • At least two types of reference signals indicate the same beam.
  • the network side may indicate at least two types of reference signal indications by using a Quasi-Co Located (QCL) indication.
  • the beams are the same beam.
  • the embodiment shown in FIG. 2 is independent of the embodiment of the embodiment, and the embodiment of the embodiment may not be implemented on the basis of the embodiment shown in FIG. 2, that is, the embodiment may also be implemented.
  • the beam failure is determined in other ways and a beam failure recovery request is initiated.
  • Case 1 If the beams indicated by at least two reference signal types have not failed, the user terminal continues to perform beam measurement;
  • the beam failure count value is not increased, that is, the beam is considered to have failed
  • the beam failure count value indicated by the at least two reference signal types that increase the uncertainty includes:
  • Method 1 Increasing a beam failure count value indicated by at least two reference signal types of uncertainty according to a predetermined ratio, for example, a beam failure indicated by a first one of the at least two reference signal types of M times occurs, And the case where the beam indicated by the second reference signal type of the at least two reference signal types fails, and the beam failure count value indicated by the at least two reference signal types is increased by one;
  • Mode 2 a beam failure count value indicated by at least two reference signal types according to a pre-configured random rule
  • the beam failure count value indicated by the selective at least two reference signal types is increased, and optionally, the weighted average value of the historical beam measurement result is calculated; if the weighted average value of the historical beam measurement result is less than the pre- Set the measurement threshold (that is, the preset measurement threshold is not reached), and increase the beam failure count value indicated by at least two reference signal types, such as the beam failure count value plus one; if the weighted average of the historical beam measurement results is greater than or It is equal to the preset measurement threshold (that is, the preset measurement threshold is reached), and the beam failure count value is not increased.
  • the reference signal types indicating the same beam include: SS Block and CSI-RS, and if the beams indicated by the SS Block and the CSI-RS fail, the beam failure count value is increased by 2.
  • the beam failure recovery request may be triggered according to the beam failure condition in the beam set indicated by the different reference signal types, and the various requirements for beam failure recovery in the 5G and subsequent evolved communication systems are satisfied.
  • FIG. 3 a flowchart of a beam failure recovery method according to still another embodiment is shown.
  • the execution body of the method is a user terminal.
  • the reference signal indication type for determining the beam failure is not explicitly indicated. Proceed as follows:
  • Step 301 Determine beam measurement values indicated by all reference signal types in the beam set.
  • Step 302 Determine, according to beam measurement values indicated by all reference signal types, one or at least two beam failures;
  • the beam failure may be determined in step 302 by:
  • Manner 1 detecting, in a second time window, a beam measurement value of a reference signal type (for example, SS Block or CSI-RS) of the at least two reference signal types; if the beam measurement value is lower than Determining a preset measurement threshold value indicated by a reference signal type, determining that a predetermined one of the reference signal type indicates a beam failure;
  • a reference signal type for example, SS Block or CSI-RS
  • the beam measurement value indicated by any reference signal type is detected in the second time window; if the beam measurement value is lower than the preset measurement threshold, determining the beam failure corresponding to the beam measurement value ;
  • Manner 3 The beam measurement value indicated by the at least two reference signal types is detected in the second time window; if the beam measurement value is lower than the preset measurement threshold, determining a beam failure corresponding to the beam measurement value ;
  • Manner 4 detecting, in a second time window, a beam measurement value indicated by one of at least two reference signal types or at least two reference signal type indications; if the one or at least two reference signal types indicate beam measurement If the number of statistics whose value is lower than the preset measurement threshold is greater than the preset threshold (the preset threshold is greater than or equal to 1), the beam failure corresponding to the beam measurement is determined.
  • the beam failure count can be performed to obtain a count value, and subsequently, it can be determined whether the beam failure recovery condition is satisfied according to the count value.
  • the preset measurement threshold value in the foregoing manners 1 to 4 may be an absolute threshold value or a relative threshold value.
  • the preset measurement threshold in the foregoing manners 1 to 4 includes at least one or more of the following: an SINR threshold, an RSRP threshold, and an RSRQ threshold.
  • the preset measurement threshold values indicated by different reference signal types are different, or the preset measurement threshold values indicated by different reference signal types are the same.
  • Step 303 Determine, according to the determined failure of one or at least two beams, whether the beam failure recovery condition is met, and if yes, perform step 304; otherwise, end the process;
  • the beam failure recovery condition is satisfied if the number of beam measurement values indicated by all reference signal types in the beam set is lower than or equal to a preset number of thresholds, or if the beam set is When the beam measurement values indicated by all the reference signal types are lower than the preset measurement threshold, it is determined that the beam failure recovery condition is satisfied.
  • Step 304 Send a failure recovery request.
  • the failure recovery request may include: a new candidate beam recommended to the base station, and after receiving the failure recovery request, the base station sends a response signaling to the terminal, which may include switching to a new candidate beam, or Restart beam search, or other indications.
  • the beam failure recovery request may be triggered according to the beam failure condition indicated by the different reference signal types in the beam set indicated by the different reference signal types, and the beam is satisfied in the 5G and subsequent evolved communication systems.
  • Various needs for failure recovery may be triggered according to the beam failure condition indicated by the different reference signal types in the beam set indicated by the different reference signal types, and the beam is satisfied in the 5G and subsequent evolved communication systems.
  • a user terminal is also provided in the embodiment of the present disclosure.
  • the principle of the user terminal is similar to the measurement method in the embodiment of the present disclosure. Therefore, the implementation of the user terminal can refer to the implementation of the method, and the repeated description is not repeated.
  • the user terminal 400 comprising:
  • a determining module 401 configured to determine, from the set of beams indicated by the at least two reference signal types, that one or at least two beams fail;
  • the determining module 402 is configured to determine, according to the determined one or at least two beam failures, whether the beam failure recovery condition is met;
  • the sending module 403 is configured to send a failure recovery request if the beam failure recovery condition is met.
  • the determining module 401 includes:
  • a first determining unit 4011 configured to determine beam measurement values of one or more beams in the beam set, where the beam set includes a beam indicated by at least two reference signal types;
  • the second determining unit 4012 is configured to determine, according to the beam measurement values of the one or more beams, one or at least two beam failures.
  • the number of beams in the beam set is configured by the network side.
  • the number of beams indicated by different reference signal types in the beam set is configured by the network side to be different values, or the number of beams indicated by different reference signal types in the beam set is configured to be the same by the network side. The value.
  • the first determining unit 4011 is further configured to: determine beam measurement values indicated by all reference signal types in the beam set.
  • the determining module 402 is further configured to: if the number of the beam measurement values indicated by all the reference signal types in the beam set is lower than or equal to the preset number of thresholds, Or if the beam measurement value indicated by all reference signal types in the beam set is lower than the preset measurement threshold, it is determined that the beam failure recovery condition is satisfied.
  • the first determining unit 4011 is further configured to: determine a reference signal indication type for determining a beam failure; and determine beam measurement values of one or more beams in the beam set according to the reference signal indication type.
  • the reference signal indication type includes: indicating that a reference signal type for determining beam failure is used, and/or indicating that at least two reference signal types for determining beam failure are used.
  • the reference signal indication type is configured by a network side.
  • the reference signal indication type is to use at least two types of reference signals for determining beam failure
  • the determining module 402 is further configured to: perform a unified beam failure count on the beam failure indicated by the different reference signal types to obtain a beam failure count value; if the beam failure count value is greater than or equal to the first preset count threshold , determining that the beam failure recovery condition is satisfied;
  • Beam failures indicated by different reference signal types are respectively counted, and a beam failure count value indicated by one or at least two reference signal types is obtained; if one or at least two reference signal types indicate a beam failure count value greater than or equal to the first If the preset count threshold is two, it is determined that the beam failure recovery condition is satisfied.
  • the user terminal 400 further includes: an obtaining module 404, configured to acquire a first time window for performing average filtering of beam measurement by the user terminal configured by the network side.
  • the second determining unit 4012 is further configured to:
  • the preset measurement threshold is an absolute threshold or a relative threshold.
  • the preset measurement threshold value includes at least one or more of the following: a signal to interference plus noise ratio SINR threshold value, a reference signal received power RSRP threshold value, and a reference signal received quality RSRQ threshold value.
  • the preset measurement thresholds indicated by different reference signal types are different, or the preset measurement thresholds indicated by different reference signal types are the same.
  • the user terminal 400 further includes: a measurement control module 405, configured to continue beam measurement if none of the beams indicated by the at least two reference signal types fail.
  • the user terminal 400 further includes: a first counting module 406, configured to fail if a beam indicated by a first one of the at least two reference signal types fails, and at least two references The beam indicated by the second reference signal type in the signal type does not fail, and it is determined that the beam indicated by the at least two reference signal types does not fail, and the accumulation of the beam failure count is not performed;
  • the beam indicated by the first reference signal type of the at least two reference signal types fails, and the beam indicated by the second reference signal type of the at least two reference signal types does not fail, determining the indication of the at least two reference signal types The beam fails, increasing the beam failure count value indicated by at least two reference signal types.
  • the user terminal 400 further includes: a second counting module 407, configured to fail if a beam indicated by a first one of the at least two reference signal types fails, and at least two references The beam indicated by the second reference signal type in the signal type does not fail, and the beam failure count value indicated by at least two reference signal types is increased.
  • a second counting module 407 configured to fail if a beam indicated by a first one of the at least two reference signal types fails, and at least two references The beam indicated by the second reference signal type in the signal type does not fail, and the beam failure count value indicated by at least two reference signal types is increased.
  • the second counting module 407 is further configured to: increase a beam failure count value indicated by at least two reference signal types according to a predetermined ratio; or increase at least two reference signal type indications according to a pre-configured random rule.
  • the second counting module 407 is further configured to: calculate a weighted average of the historical beam measurement results; if the weighted average of the historical beam measurement results is less than the preset measurement threshold, add at least two reference signal type indications Beam failure count value.
  • the user terminal 400 further includes:
  • the third counting module 408 is configured to: if the beams indicated by all the reference signal types in the at least two reference signal types fail, increase a beam failure count value indicated by the at least two reference signal types, for example, a beam failure count value plus 1; or If the beams indicated by all of the at least two reference signal types fail, the beam failure count value indicated by the at least two reference signal types is increased according to the number of reference signal types indicating the same beam.
  • the user terminal provided in this embodiment can perform the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 5 is a schematic structural diagram of a user terminal according to another embodiment of the present disclosure.
  • the user terminal 500 shown in FIG. 5 includes at least one processor 501, a memory 502, at least one network interface 504, and a user interface 503.
  • the various components in terminal 500 are coupled together by a bus system 505.
  • bus system 505 is used to implement connection communication between these components.
  • the bus system 505 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as bus system 505 in FIG.
  • the user interface 503 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen, etc.).
  • a pointing device eg, a mouse, a trackball, a touchpad, or a touch screen, etc.
  • the memory 502 in an embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • DRRAM direct memory bus random access memory
  • memory 502 holds the following elements, executable modules or data structures, or a subset thereof, or their extended set: operating system 5021 and application 5022.
  • the operating system 5021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
  • the application 5022 includes various applications, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services.
  • a program implementing the method of the embodiments of the present disclosure may be included in the application 5022.
  • the program or instruction saved by calling the memory 502 may be, in particular, a program or an instruction saved in the application 5022.
  • the following steps are implemented: from the beam set indicated by the at least two reference signal types. Determining one or at least two beam failures; determining whether a beam failure recovery condition is satisfied according to the determined one or at least two beam failures; if the beam failure recovery condition is met, transmitting a failure recovery request.
  • Processor 501 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 501 or an instruction in a form of software.
  • the processor 501 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502 and completes the steps of the above method in combination with its hardware.
  • the embodiments described in the embodiments of the present disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or at least two Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSPDevice, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described in this disclosure In an electronic unit or a combination thereof.
  • ASICs Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSPDevice Digital Signal Processing Equipment
  • PLD programmable Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the techniques described in the embodiments of the present disclosure may be implemented by modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software code can be stored in memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the following steps may be implemented: determining beam measurement values of one or more beams in the beam set, where the beam set includes at least two beams indicated by reference signal types; Determining one or at least two beam failures based on beam measurements of the one or more beams.
  • the following steps may be implemented: determining beam measurement values indicated by all reference signal types in the beam set.
  • the following steps may also be implemented:
  • the following steps may also be implemented:
  • Determining a reference signal indication type for determining a beam failure Determining a reference signal indication type for determining a beam failure; determining beam measurements of one or more beams in the beam set according to the reference signal indication type.
  • the following steps may be implemented: performing a unified beam failure count on the beam failure indicated by the different reference signal types to obtain a beam failure count value; if the beam failure count value If the threshold is greater than or equal to the first preset count, the beam failure recovery condition is determined; or the beam failures indicated by the different reference signal types are respectively counted, and the beam failure counts indicated by one or at least two reference signal types are obtained. a value; if the beam failure count value indicated by one or at least two reference signal types is greater than or equal to a second preset count threshold, it is determined that the beam failure recovery condition is satisfied.
  • the following steps may be implemented: detecting, in the second time window, a beam measurement value indicated by one of the at least two reference signal types; If the beam measurement value is lower than a preset measurement threshold value indicated by a preset reference signal type, determining that a preset one of the reference signal type indicates a beam failure; or detecting an arbitrary time in the second time window a beam measurement value indicated by the reference signal type; if the beam measurement value is lower than a preset measurement threshold, determining a beam failure corresponding to the beam measurement value;
  • the following steps may be further implemented: if the beams indicated by the at least two reference signal types are not failed, the beam measurement is continued.
  • the beam indicated by the first reference signal type of the at least two reference signal types fails, and the beam indicated by the second reference signal type of the at least two reference signal types does not fail, determining the indication of the at least two reference signal types The beam does not fail, and the accumulation of beam failure counts is not performed;
  • the beam indicated by the first reference signal type of the at least two reference signal types fails, and the beam indicated by the second reference signal type of the at least two reference signal types does not fail, determining the indication of the at least two reference signal types The beam fails, increasing the beam failure count value indicated by at least two reference signal types.
  • the following steps may be further implemented: if the beam indicated by the first reference signal type of the at least two reference signal types fails, and the first of the at least two reference signal types The beams indicated by the two reference signal types do not fail, and the beam failure count value indicated by at least two reference signal types is increased.
  • the following steps may be further implemented: increasing the beam failure count value indicated by the at least two reference signal types according to a predetermined ratio; or adding at least two according to the pre-configured random rules.
  • the beam failure count value indicated by the reference signal type or, based on the historical beam measurement result, selectively increasing the beam failure count value beam failure count value indicated by the at least two reference signal types.
  • the following steps may also be implemented:
  • the following steps may be further implemented: if the beams indicated by all the reference signal types in the at least two reference signal types fail, the beam failure count indicated by the at least two reference signal types is increased. Value, such as the beam failure count value plus one; or,
  • the beam failure count value indicated by the at least two reference signal types is increased according to the number of reference signal types indicating the same beam.
  • the embodiment of the present disclosure further provides a computer readable storage medium, where the beam failure recovery program is stored, and the beam failure recovery program is implemented by the processor to implement the beam failure recovery method as described above. A step of.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, at least two units or components may be combined. Or it can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to at least two network units. . Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present disclosure.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such an understanding, a portion of the technical solution of the present disclosure that contributes in essence or to the related art or a part of the technical solution may be embodied in the form of a software product, which is stored in a storage medium, including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store the program code.

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

Abstract

L'invention concerne un procédé de récupération suite à une défaillance de faisceau, ainsi qu'un terminal utilisateur. Le procédé consiste : à déterminer une ou plusieurs défaillances de faisceau parmi un ensemble de faisceaux, indiquées par au moins deux types de signaux de référence ; à déterminer, en fonction de la ou des défaillances de faisceau déterminées, si une condition de récupération suite à une défaillance de faisceau est satisfaite ; si tel est le cas, à transmettre une requête de récupération de défaillance.
PCT/CN2018/099369 2017-08-10 2018-08-08 Procédé de récupération suite à une défaillance de faisceau et terminal utilisateur WO2019029562A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11363603B2 (en) * 2019-10-29 2022-06-14 Nokia Technologies Oy Delta beam comparison for UL/DL beam misalignment detection

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020191751A1 (fr) * 2019-03-28 2020-10-01 富士通株式会社 Procédé et appareil de rétablissement après défaillance de faisceau et système de communication
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
CN111918416B (zh) * 2019-05-10 2023-10-10 华为技术有限公司 通信方法和通信装置
WO2022027254A1 (fr) * 2020-08-04 2022-02-10 Apple Inc. Reprise après défaillance d'un faisceau intercellulaire
CN115315974A (zh) * 2021-03-04 2022-11-08 北京小米移动软件有限公司 波束恢复的方法、装置、通信设备及存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160183233A1 (en) * 2014-12-19 2016-06-23 Electronics And Telecommunications Research Institute Method and apparatus for operating system in cellular mobile communication system
CN107005858A (zh) * 2015-02-13 2017-08-01 联发科技（新加坡）私人有限公司 MmW系统中间歇性断开的处理

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101800221B1 (ko) * 2011-08-11 2017-11-22 삼성전자주식회사 무선통신 시스템에서 빔 추적 방법 및 장치
US9843465B2 (en) * 2014-11-26 2017-12-12 Avago Technologies General Ip (Singapore) Pte. Ltd. Distributed dynamic configuration of a scalable radio frequency communication system
CN105790886A (zh) * 2014-12-24 2016-07-20 中兴通讯股份有限公司 数据包发送、接收方法、装置、基站及终端
CN107079459A (zh) * 2015-08-11 2017-08-18 瑞典爱立信有限公司 从波束故障中恢复

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160183233A1 (en) * 2014-12-19 2016-06-23 Electronics And Telecommunications Research Institute Method and apparatus for operating system in cellular mobile communication system
CN107005858A (zh) * 2015-02-13 2017-08-01 联发科技（新加坡）私人有限公司 MmW系统中间歇性断开的处理

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZTE ET AL.: "Discussion on beam recovery mechanism", 3GPP TSG RAN WG1 MEETING #88BIS, R1-1704400, 25 March 2017 (2017-03-25), XP051251202 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11363603B2 (en) * 2019-10-29 2022-06-14 Nokia Technologies Oy Delta beam comparison for UL/DL beam misalignment detection

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