WO2019029562A1 - 波束失败恢复方法和用户终端 - Google Patents

波束失败恢复方法和用户终端 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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English (en)
French (fr)
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马玥
陈力
孙晓东
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0621Feedback content
    • H04B7/0632Channel quality parameters, e.g. channel quality indicator [CQI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/28Cell structures using beam steering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless 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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Abstract

本公开涉及一种波束失败恢复方法和用户终端,该方法包括:从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败;根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件;如果满足所述波束失败恢复条件,则发送失败恢复请求。

Description

波束失败恢复方法和用户终端
相关申请的交叉引用
本申请主张在2017年8月10日在中国提交的中国专利申请号No.201710682605.7的优先权,其全部内容通过引用包含于此。
技术领域
本公开实施例涉及通信技术领域,尤其涉及一种波束失败恢复方法和用户终端。
背景技术
1)关于多天线:
长期演进(Long Term Evolution,LTE)/长期演进系统-增强(LTE-Advanced,LTE-A)等无线接入技术标准都是以多输入多输出(Multiple-Input Multiple-Output,MIMO)+正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)技术为基础构建起来的。其中,MIMO技术利用多天线系统所能获得的空间自由度,来提高峰值速率与系统频谱利用率。
在标准化发展过程中MIMO技术的维度不断扩展。在LTE Rel-8中,最多可以支持4层的MIMO传输。在Rel-9中增强多用户MIMO(Multi-User MIMO,MU-MIMO)技术,传输模式8(Transmission Mode 8,TM-8)的MU-MIMO传输中最多可以支持4个下行数据层。在Rel-10中将单用户MIMO(Single-User MIMO,SU-MIMO)的传输能力扩展至最多8个数据层。
产业界正在进一步地将MIMO技术向着三维化和大规模化的方向推进。目前,3GPP(第三代合作伙伴计划)已经完成了3D信道建模的研究项目,并且正在开展增强型全维度多入多出系统(enhanced Full Dimension-Multiple Input Multiple Output,eFD-MIMO)和新无线(New Radio,NR)MIMO的研究和标准化工作。可以预见,在未来的5G(第五代通信技术)中,更大规模、更多天线端口的MIMO技术将被引入。
大规模MIMO(MassiveMIMO)技术使用大规模天线阵列,能够极大地提升系统频带利用效率,支持更大数量的接入用户。因此各大研究组织均将massive MIMO技术视为下一代移动通信系统中最有潜力的物理层技术之一。
在Massive MIMO技术中如果采用全数字阵列,可以实现最大化的空间分辨率以及最优MU-MIMO性能,但是这种结构需要大量的模数(Analog to Digital AD)/数模(Digital to Analog,DA)转换器件以及大量完整的射频-基带处理通道,无论是设备成本还是基带处理复杂度都将是巨大的负担。
为了避免上述的实现成本与设备复杂度,数模混合波束赋形技术应运而生,即在传统的数字域波束赋形基础上,在靠近天线系统的前端,在射频信号上增加一级波束赋形。模拟赋形能够通过较为简单的方式,使发送信号与信道实现较为粗略的匹配。模拟赋形后形成的等效信道的维度小于实际的天线数量,因此其后所需的AD/DA转换器件、数字通道数以及相应的基带处理复杂度都可以大为降低。模拟赋形部分残余的干扰可以在数字域再进行一次处理,从而保证MU-MIMO传输的质量。相对于全数字赋形而言,数模混合波束赋形是性能与复杂度的一种折中方案,在高频段大带宽或天线数量很大的系统中具有较高的实用前景。
2)关于高频段:
在对第四代(4 th Generation,4G)移动通信技术以后的下一代通信系统研究中,将系统支持的工作频段提升至6GHz以上,最高约达100GHz。高频段具有较为丰富的空闲频率资源,可以为数据传输提供更大的吞吐量。目前3GPP已经完成了高频信道建模工作,高频信号的波长短,同低频段相比,能够在同样大小的面板上布置更多的天线阵元,利用波束赋形技术形成指向性更强、波瓣更窄的波束。因此,将大规模天线和高频通信相结合,也是未来的趋势之一。
3)关于波束测量和报告(beam measurement and beam reporting):
模拟波束赋形是全带宽发射的,并且每个高频天线阵列的面板上每个极化方向阵元仅能以时分复用的方式发送模拟波束。模拟波束的赋形权值是通过调整射频前端移相器等设备的参数来实现。
目前在学术界和工业界,通常是使用轮询的方式进行模拟波束赋形向量 的训练,即每个天线面板每个极化方向的阵元以时分复用方式依次在约定时间依次发送训练信号(即候选的赋形向量),终端经过测量后反馈波束报告,供网络侧在下一次传输业务时采用该训练信号来实现模拟波束发射。
网络侧通过高层信令为用户终端(User Equipment,UE)配置波束报告(beam reporting)的设置信息,即reporting setting,其中包括波束报告的内容信息、波束报告的时域相关消息(周期、非周期、半持续)、波束报告的频域粒度(frequency granularity)信息等。波束报告(beam reporting)中的内容信息可以包括:UE所选的至少一个最优发射波束标识信息、UE所选波束的物理层测量结果(如L1-RSRP)、UE所选波束的分组信息等。
4)关于波束管理:
波束管理分为下行波束管理和上行波束管理。下行波束管理的机制主要由基站配置的信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS),由用户终端测得相应波束的参考符号接收强度(Reference Symbol Received Power,L1-RSRP)测量值,并将该值上报给网络,网络通过获得测量值,添加或者删除相应的波束,从而维护一个动态的波束集合供使用。上行通过基站检测信道探测参考信号(Sounding Reference Signal,SRS)或者CSI-RS完成类似的功能。
5)关于波束失败恢复(beam failure recovery)机制:
在高频段通信系统中,由于无线信号的波长较短,较容易发生信号传播被阻挡等情况,导致信号传播中断。如果采用相关技术中的无线链路重建,则耗时较长,因此引入了波束失败恢复机制,即在物理层监听波束失败检测参考信号(beam failure detection reference signal),并评估该参考信号质量是否满足波束失败触发条件。该触发条件目前3GPP讨论未定。一旦满足该条件,则UE可以向基站发送波束失败恢复请求(beam failure recovery request),该波束失败恢复请求中可能包括向基站推荐的新候选波束,基站接收到该波束失败恢复请求后,会向UE发送响应(response)信令,其中可能包括切换至新候选波束、或重新启动波束搜索、或其它指示。这种波束失败恢复机制能够快速切换到备用波束对链路(beam pair link,BPL)上继续传输控制消息和数据,实现波束快速恢复。
然而,当在NR系统中,如果同步信号块(Synchronous Signal Block,SS Block)和CSI-RS两种参考信号同时配置进行波束管理时,亟需一种触发波束失败恢复的技术方案。
发明内容
本公开实施例提供一种波束失败恢复方法和用户终端,解决相关技术中缺少当波束集合中配置有至少两种参考信号类型指示的波束时,如何判断波束失败并发起波束失败恢复请求的问题。
第一方面,提供了一种波束失败恢复方法,包括:
从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败;
根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件;
如果满足所述波束失败恢复条件,则发送失败恢复请求。
第二方面,还提供了一种用户终端,包括:
确定模块,用于从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败;
判断模块,用于根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件;
发送模块,用于如果满足所述波束失败恢复条件,则发送失败恢复请求。
第三方面,还提供了一种用户终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的波束失败恢复程序,所述波束失败恢复程序被所述处理器执行时实现如上所述的波束失败恢复方法的步骤。
第四方面,还提供了一种计算机可读存储介质,所述计算机可读存储介质上存储有波束失败恢复程序,所述波束失败恢复程序被处理器执行时实现如上所述的波束失败恢复方法的步骤。
附图说明
通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本 领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并不认为是对本公开的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1为本公开一个实施例的波束失败恢复方法的流程图;
图2为本公开另一个实施例的波束失败恢复方法的流程图;
图3为本公开又一个实施例的波束失败恢复方法的流程图;
图4为本公开一个实施例的用户终端的结构框图;
图5为本公开另一个实施例的用户终端的结构框图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚,下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
本公开的说明书和权利要求书中的术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本公开实施例中,网络侧可以指的是基站,该基站可以是全球移动通讯(Global System of Mobile communication,GSM)或码分多址(Code Division Multiple Access,CDMA)中的基站(Base Transceiver Station,BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),还可以是新无线接入(New radio access technical,New RAT或NR)中的基站,或者中继站或接入点,或者未来第五代(5th Generation,5G)移动通信网络中的基站等,在此并不限定。
在本公开实施例中,用户终端(UE)可以是无线终端也可以是有线终端,该无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备,具有 无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,无线终端可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station),移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment),在此不作限定。
参见图1,图中示出了一个实施例的波束失败恢复方法的流程图,该方法的执行主体为用户终端,具体步骤如下:
步骤101、从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败;
上述至少两种类型的参考信号可以包括:SS Block和CSI-RS,其中,SSB信号可以指示较宽的波束,CSI-RS可以指示较窄的波束,当然也并不限于此。
CSI-RS是长期演进(Long Term Evolution,LTE)中已有的概念,在新无线(New Radio,NR)中由于引入了波束(beam)的理念,CSI-RS由于其灵活的配置可以用于指示波束。SS Block信号是NR中新引入的同步信号,周期性发送且其周期可配置。SS Block同样也可以指示波束。一般说来,SS Block可以指示较宽的波束,而CSI-RS可以指示较窄的波束。但是通过合理配置两者均可指示宽/窄波束。
可选地,作为一个例子,用户终端可以先确定波束集合中一个或多个波束的波束测量值,该波束集合中包括至少两种参考信号类型指示的波束;然后再根据一个或多个波束的波束测量值,确定一个或至少两个波束失败。
其中,波束集合中波束个数可以由网络侧配置。例如,波束集合中不同参考信号类型指示的波束个数由网络侧配置为不同的数值,或者,所述波束 集合中不同参考信号类型指示的波束个数由网络侧配置为一个相同的数值。
作为一个例子,可通过以下方式确定波束失败:
方式一、在第二时间窗口内检测到至少两种参考信号类型中预设的一种参考信号类型(例如SS Block或者CSI-RS)指示的波束测量值;如果所述波束测量值低于预设的一种参考信号类型指示的预设测量门限值,则确定预设的一种参考信号类型指示的波束失败;
方式二、在第二时间窗口内检测到任意一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
方式三、在第二时间窗口内检测到至少两种参考信号类型指示的波束测量值;如果所述波束测量值均低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
方式四、在第二时间窗口内检测到至少两种参考信号类型中的一种或至少两种参考信号类型指示的波束测量值;如果所述一种或至少两种参考信号类型指示的波束测量值低于预设测量门限值的统计次数大于预设次数门限值,则确定与所述波束测量值对应的波束失败。
在上述方式一至方式四中,如果确定波束失败,则可以进行波束失败计数,得到波束失败计数值,后续可以根据该波束失败计数值判断是否满足波束失败恢复条件。
可选地,所述预设测量门限值是绝对门限值或者相对门限值。
可选地,所述预设测量门限值至少包括以下一种或多种:SINR(信号与干扰加噪声比)门限值、RSRP(参考信号接收功率)门限值和RSRQ(参考信号接收质量)门限值,当然也并不限于此。
可选地,不同的参考信号类型指示的预设测量门限值不同,或者不同的参考信号类型指示的预设测量门限值相同。
步骤102、根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件,若是,执行步骤103;否则,结束流程。
可选地,作为一个例子,可以通过以下方式判断是否满足波束失败恢复条件:如果波束集合中所有参考信号类型指示的波束测量值中低于预设测量 门限值的个数大于或等于预设个数门限值时,或者如果波束集合中所有参考信号类型指示的波束测量值均低于预设测量门限值时,判定满足波束失败恢复条件。
需要说明的是,在本公开实施例中并不具体限定波束失败恢复条件。
步骤103、发送失败恢复请求。
作为一个例子,该失败恢复请求中可能包括:向基站推荐的新候选波束,基站接收到该失败恢复请求后,会向终端发送响应(response)信令,其中可能包括切换至新候选波束、或重新启动波束搜索、或其它指示等。
这样,在本公开实施例中,可以在不同的参考信号类型指示的波束集合中,根据不同的参考信号类型指示的波束失败的情况触发波束失败恢复请求,满足5G以及后续演进通信系统中对于波束失败恢复的各种需求。
参见图2,图中示出了另一个实施例的波束失败恢复方法的流程图,该方法的执行主体为用户终端,在本公开实施例中需要明确判断波束失败的参考信号指示类型,具体步骤如下:
步骤201、确定用于判断波束失败的参考信号指示类型;
可选地,参考信号指示类型包括:指示使用一种用于判断波束失败的参考信号类型,和/或,指示使用至少两种用于判断波束失败的参考信号类型。
上述至少两种类型的参考信号可以包括:SS Block和CSI-RS,其中,SS Block信号可以指示较宽的波束,CSI-RS可以指示较窄的波束,当然也并不限于此。
步骤202、根据所述参考信号指示类型确定波束集合中一个或多个波束的波束测量值;
可选地,波束集合中不同参考信号类型指示的波束个数由网络侧指示为不同的数值,或者,波束集合中不同参考信号类型指示的波束个数由网络侧指示为一个相同的数值。
步骤203、根据一个或多个波束的波束测量值,确定一个或至少两个波束失败;
可选地,作为一个例子,步骤203中可通过以下方式确定波束失败:
方式一、在第二时间窗口内检测到至少两种参考信号类型中预设的一种 参考信号类型(例如SS Block或者CSI-RS)指示波束的波束测量值;如果所述波束测量值低于预设的一种参考信号类型指示的预设测量门限值,则确定预设的一种参考信号类型指示的波束失败;
方式二、在第二时间窗口内检测到任意一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
方式三、在第二时间窗口内检测到至少两种参考信号类型指示的波束测量值;如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
方式四、在第二时间窗口内检测到至少两种参考信号类型中的一种或至少两种参考信号类型指示的波束测量值;如果所述一种或至少两种参考信号类型指示的波束测量值低于预设测量门限值的统计次数大于预设次数门限值(例如预设次数门限值大于等于1),则确定与所述波束测量值对应的波束失败。
在上述方式一至方式四中,如果确定波束失败,则可以进行波束失败计数,得到波束失败计数值,后续可以根据该波束失败计数值判断是否满足波束失败恢复条件。
可选地,上述方式一至方式四中预设测量门限值可以是绝对门限值或者相对门限值。
可选地,上述方式一至方式四中预设测量门限值至少包括以下一种或多种:SINR门限值、RSRP门限值和RSRQ门限值。
可选地,上述方式一至方式四中,不同的参考信号类型指示的预设测量门限值不同,或者不同的参考信号类型指示的预设测量门限值相同。
步骤204、根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件,若是,执行步骤205;否则,结束流程。
例如,根据确定的一个或至少两个波束失败进行波束失败计数,如果波束失败计数值大于或等于预设波束失败计数门限值,可判定满足波束失败恢复条件,该波束失败恢复条件包括预设波束失败计数门限值。
可选地,作为一个例子,如果所述参考信号指示类型为使用至少两种用 于判断波束失败的参考信号类型,则在步骤204中可根据如下方式判断是否满足波束失败恢复条件:
方式一、对不同的参考信号类型指示的波束失败进行统一的波束失败计数,得到波束失败计数值;如果所述波束失败计数值大于或等于第一预设计数门限值,则判定满足波束失败恢复条件;
方式二、对不同的参考信号类型指示的波束失败分别计数,得到一种或至少两种参考信号类型指示的波束失败计数值;如果一种或至少两种参考信号类型指示的波束失败计数值大于或等于第二预设计数门限值,则判定满足波束失败恢复条件。
步骤205、发送失败恢复请求。
作为一个例子,该失败恢复请求中可能包括:向基站推荐的新候选波束,基站接收到该失败恢复请求后,会向终端发送响应信令,其中可能包括切换至新候选波束、或重新启动波束搜索、或其它指示等。
这样,在本公开实施例中,可以在不同的参考信号类型指示的波束集合中,根据不同的参考信号类型指示的波束失败的情况触发波束失败恢复请求,满足5G以及后续演进通信系统中对于波束失败恢复的各种需求。
在本公开的又一个实施例中还提供了另一种的波束失败恢复方法的实施方式,本实施方式可以基于上述图2所示的实施方式,下面仅介绍本实施方式中当至少两种参考信号类型中的一种或至少两种指示的波束失败,对波束失败计数进行调整的过程,本实施方式的其他流程可参照图2所示的实施方式,在此不再复述。
需要说明的是,在本实施例中至少两种参考信号类型指示同一个波束,例如,网络侧可以通过伪共站指示(Quasi-Co Located,QCL)指示来表明至少两种参考信号类型指示的波束是同一个波束。
当然需要说明的是,图2所示的实施方式独立于本实施例的实施方式,本实施例的实施方式也可以不在图2所示的实施方式的基础上实施,即本实施方式中也可以采用其他的方式确定波束失败以及发起波束失败恢复请求。
作为一个例子,若至少两种参考信号类型指示同一个波束,在一定时间窗口内可能出现以下情况:
情况1:如果至少两种参考信号类型指示的波束都未失败,用户终端继续进行波束测量;
情况2:如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败:
对应用户终端的行为:
(1)不增加波束失败计数值,即认为该波束未失败;
(2)增加至少两种参考信号类型指示的波束失败计数值,例如该波束失败计数值加1;
(3)增加不确定性的至少两种参考信号类型指示的波束失败计数值。
可选地,增加不确定性的至少两种参考信号类型指示的波束失败计数值,包括:
方式1、按照预定的比例增加不确定性的至少两种参考信号类型指示的波束失败计数值,例如,出现M次的至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败的情况,则至少两种参考信号类型指示的波束失败计数值加1;
方式2、根据预先配置的随机规则至少两种参考信号类型指示的波束失败计数值;
方式3、根据历史波束测量结果,选择性至少两种参考信号类型指示的波束失败计数值增加,可选地,计算历史波束测量结果的加权平均值;如果历史波束测量结果的加权平均值小于预设测量门限值(即未达到预设测量门限值),增加至少两种参考信号类型指示的波束失败计数值,例如波束失败计数值加1;如果历史波束测量结果的加权平均值大于或等于预设测量门限值(即达到预设测量门限值),不增加波束失败计数值。
情况3:如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,用户终端的行为:
(1)增加至少两种参考信号类型指示的波束失败计数值,例如波束失败计数值加1;
(2)根据指示同一波束的参考信号类型的数量增加至少两种参考信号类型指示的波束失败计数值。
例如,指示同一波束的参考信号类型包括:SS Block和CSI-RS,如果SS Block和CSI-RS指示的波束均失败,则波束失败计数值加2。
这样,在本公开实施例中,可以在不同的参考信号类型指示的波束集合中,根据波束失败的情况触发波束失败恢复请求,满足5G以及后续演进通信系统中对于波束失败恢复的各种需求。
参见图3,图中示出了又一个实施例的波束失败恢复方法的流程图,该方法的执行主体为用户终端,在本公开实施例中不明确指示判断波束失败的参考信号指示类型,具体步骤如下:
步骤301、确定波束集合中所有参考信号类型指示的波束测量值;
步骤302、根据所有参考信号类型指示的波束测量值,确定一个或至少两个波束失败;
可选地,作为一个例子,步骤302中可通过以下方式确定波束失败:
方式一、在第二时间窗口内检测到至少两种参考信号类型中预设的一种参考信号类型(例如SS Block或者CSI-RS)指示波束的波束测量值;如果所述波束测量值低于预设的一种参考信号类型指示的预设测量门限值,则确定预设的一种参考信号类型指示的波束失败;
方式二、在第二时间窗口内检测到任意一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
方式三、在第二时间窗口内检测到至少两种参考信号类型指示的波束测量值;如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
方式四、在第二时间窗口内检测到至少两种参考信号类型中的一种或至少两种参考信号类型指示的波束测量值;如果所述一种或至少两种参考信号类型指示的波束测量值低于预设测量门限值的统计次数大于预设次数门限值(预设次数门限值大于等于1),则确定与所述波束测量值对应的波束失败。
在上述方式一至方式四中,如果确定波束失败,则可以进行波束失败计 数,得到计数值,后续可以根据该计数值判断是否满足波束失败恢复条件。
可选地,上述方式一至方式四中预设测量门限值可以是绝对门限值或者相对门限值。
可选地,上述方式一至方式四中预设测量门限值至少包括以下一种或多种:SINR门限值、RSRP门限值和RSRQ门限值。
可选地,上述方式一至方式四中,不同的参考信号类型指示的预设测量门限值不同,或者不同的参考信号类型指示的预设测量门限值相同。
步骤303、根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件,若是,执行步骤304;否则,结束流程;
可选地,作为一个例子,如果波束集合中所有参考信号类型指示的波束测量值中低于预设测量门限值的个数大于或等于预设个数门限值时,或者如果波束集合中所有参考信号类型指示的波束测量值均低于预设测量门限值时,判定满足波束失败恢复条件。
步骤304、发送失败恢复请求。
作为一个例子,该失败恢复请求中可能包括:向基站推荐的新候选波束,基站接收到该失败恢复请求后,会向终端发送响应(response)信令,其中可能包括切换至新候选波束、或重新启动波束搜索、或其它指示等。
这样,在本公开实施例中,可以在不同的参考信号类型指示的波束集合中,根据不同的参考信号类型指示的波束失败的情况触发波束失败恢复请求,满足5G以及后续演进通信系统中对于波束失败恢复的各种需求。
本公开实施例中还提供了一种用户终端,由于用户终端解决问题的原理与本公开实施例中测量方法相似,因此该用户终端的实施可以参见方法的实施,重复之处不再敷述。
参见图4,图中示出了一个实施例的用户终端的结构,该用户终端400包括:
确定模块401,用于从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败;
判断模块402,用于根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件;
发送模块403,用于如果满足所述波束失败恢复条件,则发送失败恢复请求。
可选地,继续参见图4,确定模块401包括:
第一确定单元4011,用于确定波束集合中一个或多个波束的波束测量值,所述波束集合中包括至少两种参考信号类型指示的波束;
第二确定单元4012,用于根据所述一个或多个波束的波束测量值,确定一个或至少两个波束失败。
可选地,所述波束集合中波束个数由网络侧配置。
可选地,所述波束集合中不同参考信号类型指示的波束个数由网络侧配置为不同的数值,或者,所述波束集合中不同参考信号类型指示的波束个数由网络侧配置为一个相同的数值。
可选地,所述第一确定单元4011进一步用于:确定波束集合中所有参考信号类型指示的波束测量值。
可选地,所述判断模块402进一步用于:如果波束集合中所有参考信号类型指示的波束测量值中低于预设测量门限值的个数大于或等于预设个数门限值时,或者如果波束集合中所有参考信号类型指示的波束测量值均低于预设测量门限值时,判定满足波束失败恢复条件。
可选地,所述第一确定单元4011进一步用于:确定用于判断波束失败的参考信号指示类型;根据所述参考信号指示类型确定波束集合中一个或多个波束的波束测量值。
可选地,所述参考信号指示类型包括:指示使用一种用于判断波束失败的参考信号类型,和/或,指示使用至少两种用于判断波束失败的参考信号类型。
可选地,所述参考信号指示类型由网络侧配置。
可选地,如果所述参考信号指示类型为使用至少两种用于判断波束失败的参考信号类型;
所述判断模块402进一步用于:对不同的参考信号类型指示的波束失败进行统一的波束失败计数,得到波束失败计数值;如果所述波束失败计数值大于或等于第一预设计数门限值,则判定满足波束失败恢复条件;
或者,
对不同的参考信号类型指示的波束失败分别计数,得到一种或至少两种参考信号类型指示的波束失败计数值;如果一种或至少两种参考信号类型指示的波束失败计数值大于或等于第二预设计数门限值,则判定满足波束失败恢复条件。
可选地,继续参见图4,所述用户终端400还包括:获取模块404,用于获取网络侧配置的所述用户终端进行波束测量的平均滤波的第一时间窗口。
可选地,所述第二确定单元4012进一步用于:
在第二时间窗口内检测到预设的一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设的一种参考信号类型指示的预设测量门限值,则确定预设的一种参考信号类型指示的波束失败;
或者,
在第二时间窗口内检测到任意一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
或者,
在第二时间窗口内检测到至少两种参考信号类型指示的波束测量值;如果所述波束测量值均低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
或者,
在第二时间窗口内检测到至少两种参考信号类型中的一种或至少两种参考信号类型指示的波束测量值;如果所述一种或至少两种参考信号类型指示的波束测量值低于预设测量门限值的统计次数大于预设次数门限值,则确定与所述波束测量值对应的波束失败。
可选地,所述预设测量门限值是绝对门限值或者相对门限值。
可选地,所述预设测量门限值至少包括以下一种或多种:信号与干扰加噪声比SINR门限值、参考信号接收功率RSRP门限值和参考信号接收质量RSRQ门限值。
可选地,不同的参考信号类型指示的预设测量门限值不同,或者不同的 参考信号类型指示的预设测量门限值相同。
可选地,继续参见图4,所述用户终端400还包括:测量控制模块405,用于如果至少两种参考信号类型指示的波束都未失败,继续进行波束测量。
可选地,继续参见图4,所述用户终端400还包括:第一计数模块406,用于如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,判定至少两种参考信号类型指示的波束未失败,不进行波束失败计数的累加;
或者,
如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,判定至少两种参考信号类型指示的波束失败,增加至少两种参考信号类型指示的波束失败计数值。
可选地,继续参见图4,所述用户终端400还包括:第二计数模块407,用于如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,增加至少两种参考信号类型指示的波束失败计数值。
可选地,所述第二计数模块407进一步用于:按照预定的比例增加至少两种参考信号类型指示的波束失败计数值;或者,根据预先配置的随机规则增加至少两种参考信号类型指示的波束失败计数值;或者,根据历史波束测量结果,选择性增加至少两种参考信号类型指示的波束失败计数值波束失败计数值。
可选地,所述第二计数模块407进一步用于:计算历史波束测量结果的加权平均值;如果历史波束测量结果的加权平均值小于预设测量门限值,增加至少两种参考信号类型指示的波束失败计数值。
可选地,继续参见图4,所述用户终端400还包括:
第三计数模块408,用于如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,增加至少两种参考信号类型指示的波束失败计数值,例如波束失败计数值加1;或者,如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,根据指示同一波束的参考信号类型的数量增加至 少两种参考信号类型指示的波束失败计数值。
本实施例提供的用户终端,可以执行上述方法实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
图5为本公开另一实施例提供的用户终端的结构示意图。如图5所示,图5所示的用户终端500包括:至少一个处理器501、存储器502、至少一个网络接口504和用户接口503。终端500中的各个组件通过总线系统505耦合在一起。可理解,总线系统505用于实现这些组件之间的连接通信。总线系统505除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图5中将各种总线都标为总线系统505。
其中,用户接口503可以包括显示器、键盘或者点击设备(例如,鼠标、轨迹球(trackball)、触感板或者触摸屏等)。
可以理解,本公开实施例中的存储器502可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本公开实施例描述的系统和方法的存储器502旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中,存储器502保存了如下的元素,可执行模块或者数据结构,或者他们的子集,或者他们的扩展集:操作系统5021和应用程序5022。
其中,操作系统5021,包含各种系统程序,例如框架层、核心库层、驱动层等,用于实现各种基础业务以及处理基于硬件的任务。应用程序5022, 包含各种应用程序,例如媒体播放器(Media Player)、浏览器(Browser)等,用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序5022中。
在本公开实施例中,通过调用存储器502保存的程序或指令,具体的,可以是应用程序5022中保存的程序或指令,执行时实现以下步骤:从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败;根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件;如果满足所述波束失败恢复条件,则发送失败恢复请求。
上述本公开实施例揭示的方法可以应用于处理器501中,或者由处理器501实现。处理器501可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器501中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器501可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的保存介质中。该保存介质位于存储器502,处理器501读取存储器502中的信息,结合其硬件完成上述方法的步骤。
可以理解的是,本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或至少两个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSPDevice,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或 其组合中。
对于软件实现,可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可保存在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:确定波束集合中一个或多个波束的波束测量值,所述波束集合中包括至少两种参考信号类型指示的波束;根据所述一个或多个波束的波束测量值,确定一个或至少两个波束失败。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:确定波束集合中所有参考信号类型指示的波束测量值。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:
如果波束集合中所有参考信号类型指示的波束测量值中低于预设测量门限值的个数大于或等于预设个数门限值时,或者如果波束集合中所有参考信号类型指示的波束测量值均低于预设测量门限值时,判定满足波束失败恢复条件。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:
确定用于判断波束失败的参考信号指示类型;根据所述参考信号指示类型确定波束集合中一个或多个波束的波束测量值。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:对不同的参考信号类型指示的波束失败进行统一的波束失败计数,得到波束失败计数值;如果所述波束失败计数值大于或等于第一预设计数门限值,则判定满足波束失败恢复条件;或者,对不同的参考信号类型指示的波束失败分别计数,得到一种或至少两种参考信号类型指示的波束失败计数值;如果一种或至少两种参考信号类型指示的波束失败计数值大于或等于第二预设计数门限值,则判定满足波束失败恢复条件。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:在第二时间窗口内检测到至少两种参考信号类型中预设的一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设的一种参考信号类型指示的预设测量门限值,则确定预设的一种参考信号类型指示的波束失败;或者, 在第二时间窗口内检测到任意一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
或者,
在第二时间窗口内检测到至少两种参考信号类型指示的波束测量值;如果所述波束测量值均低于预设测量门限值,则确定与所述波束测量值对应的波束失败;或者,在第二时间窗口内检测到至少两种参考信号类型中的一种或至少两种参考信号类型指示的波束测量值;如果所述一种或至少两种参考信号类型指示的波束测量值低于预设测量门限值的统计次数大于预设次数门限值,则确定与所述波束测量值对应的波束失败。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:如果至少两种参考信号类型指示的波束都未失败,继续进行波束测量。
如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,判定至少两种参考信号类型指示的波束未失败,不进行波束失败计数的累加;
或者,
如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,判定至少两种参考信号类型指示的波束失败,增加至少两种参考信号类型指示的波束失败计数值。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,增加至少两种参考信号类型指示的波束失败计数值。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:按照预定的比例增加至少两种参考信号类型指示的波束失败计数值;或者,根据预先配置的随机规则增加至少两种参考信号类型指示的波束失败计数值;或者,根据历史波束测量结果,选择性增加至少两种参考信号类型指示的波束失败计数值波束失败计数值。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:
计算历史波束测量结果的加权平均值;如果历史波束测量结果的加权平均值小于预设测量门限值,增加至少两种参考信号类型指示的波束失败计数值。
可选的,波束失败恢复程序被处理器501执行时还可实现如下步骤:如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,增加至少两种参考信号类型指示的波束失败计数值,例如波束失败计数值加1;或者,
如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,根据指示同一波束的参考信号类型的数量增加至少两种参考信号类型指示的波束失败计数值。
本公开实施例还提供了一种计算机可读存储介质,所述计算机可读存储介质上存储有波束失败恢复程序,所述波束失败恢复程序被处理器执行时实现如上所述的波束失败恢复方法的步骤。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如至少两个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到至少两个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本公开实施例方案的目的。
另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以保存在一个计算机可读取保存介质中。基于这样的理解,本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品保存在一个保存介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的保存介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以保存程序代码的介质。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以权利要求的保护范围为准。

Claims (44)

  1. 一种波束失败恢复方法,包括:
    从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败;
    根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件;
    如果满足所述波束失败恢复条件,则发送失败恢复请求。
  2. 根据权利要求1所述的方法,其中,所述从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败,包括:
    确定波束集合中一个或多个波束的波束测量值,所述波束集合中包括至少两种参考信号类型指示的波束;
    根据所述一个或多个波束的波束测量值,确定一个或至少两个波束失败。
  3. 根据权利要求2所述的方法,其中,所述波束集合中波束个数由网络侧配置。
  4. 根据权利要求2所述的方法,其中,所述波束集合中不同参考信号类型指示的波束个数由网络侧配置为不同的数值,或者,所述波束集合中不同参考信号类型指示的波束个数由网络侧配置为一个相同的数值。
  5. 根据权利要求2所述的方法,其中,所述确定波束集合中一个或多个波束的波束测量值,包括:
    确定波束集合中所有参考信号类型指示的波束测量值。
  6. 根据权利要求5所述的方法,其中,所述根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件,包括:
    如果波束集合中所有参考信号类型指示的波束测量值中低于预设测量门限值的个数大于或等于预设个数门限值时,或者如果波束集合中所有参考信号类型指示的波束测量值均低于预设测量门限值时,判定满足波束失败恢复条件。
  7. 根据权利要求2所述的方法,其中,所述确定波束集合中一个或多个波束的波束测量值,包括:
    确定用于判断波束失败的参考信号指示类型;
    根据所述参考信号指示类型确定波束集合中一个或多个波束的波束测量值。
  8. 根据权利要求7所述的方法,其中,所述参考信号指示类型包括:指示使用一种用于判断波束失败的参考信号类型,和/或,指示使用至少两种用于判断波束失败的参考信号类型。
  9. 根据权利要求7所述的方法,其中,所述参考信号指示类型由网络侧配置。
  10. 根据权利要求8所述的方法,其中,所述参考信号指示类型为使用至少两种用于判断波束失败的参考信号类型;
    所述根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件,包括:
    对不同的参考信号类型指示的波束失败进行统一的波束失败计数,得到波束失败计数值;
    如果所述波束失败计数值大于或等于第一预设计数门限值,则判定满足波束失败恢复条件;
    或者,
    对不同的参考信号类型指示的波束失败分别计数,得到一种或至少两种参考信号类型指示的波束失败计数值;
    如果一种或至少两种参考信号类型指示的波束失败计数值大于或等于第二预设计数门限值,则判定满足波束失败恢复条件。
  11. 根据权利要求7所述的方法,还包括:
    获取网络侧配置的用户终端进行波束测量的平均滤波的第一时间窗口。
  12. 根据权利要求2所述的方法,其中,所述根据所述一个或多个波束的波束测量值,确定一个或至少两个波束失败,包括:
    在第二时间窗口内检测到预设的一种参考信号类型指示的波束测量值;
    如果所述波束测量值低于预设的一种参考信号类型指示的预设测量门限值,则确定预设的一种参考信号类型指示的波束失败;
    或者,
    在第二时间窗口内检测到任意一种参考信号类型指示的波束测量值;
    如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
    或者,
    在第二时间窗口内检测到至少两种参考信号类型指示的波束测量值;
    如果所述波束测量值均低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
    或者,
    在第二时间窗口内检测到至少两种参考信号类型中的一种或至少两种参考信号类型指示的波束测量值;
    如果所述一种或至少两种参考信号类型指示的波束测量值低于预设测量门限值的统计次数大于预设次数门限值,则确定与所述波束测量值对应的波束失败。
  13. 根据权利要求12所述的方法,其中,所述预设测量门限值是绝对门限值或者相对门限值。
  14. 根据权利要求12所述的方法,其中,所述预设测量门限值至少包括以下一种或多种:信号与干扰加噪声比SINR门限值、参考信号接收功率RSRP门限值和参考信号接收质量RSRQ门限值。
  15. 根据权利要求12所述的方法,其中,不同的参考信号类型指示的预设测量门限值不同,或者不同的参考信号类型指示的预设测量门限值相同。
  16. 根据权利要求10所述的方法,其中,至少两种参考信号类型指示同一个波束,所述方法还包括:
    如果至少两种参考信号类型指示的波束都未失败,继续进行波束测量。
  17. 根据权利要求10所述的方法,其中,至少两种参考信号类型指示同一个波束,所述方法还包括:
    如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,判定至少两种参考信号类型指示的波束未失败,不进行波束失败计数的累加;
    或者,
    如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败, 且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,判定至少两种参考信号类型指示的波束失败,增加至少两种参考信号类型指示的波束失败计数值。
  18. 根据权利要求10所述的方法,其中,至少两种参考信号类型指示同一个波束,所述方法还包括:
    如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,增加至少两种参考信号类型指示的波束失败计数值。
  19. 根据权利要求18所述的方法,其中,所述增加至少两种参考信号类型指示的波束失败计数值,包括:
    按照预定的比例增加至少两种参考信号类型指示的波束失败计数值;
    或者,
    根据预先配置的随机规则增加至少两种参考信号类型指示的波束失败计数值;
    或者,
    根据历史波束测量结果,选择性增加至少两种参考信号类型指示的波束失败计数值波束失败计数值。
  20. 根据权利要求19所述的方法,其中,所述根据历史波束测量结果,选择性增加至少两种参考信号类型指示的波束失败计数值,包括:
    计算历史波束测量结果的加权平均值;
    如果历史波束测量结果的加权平均值小于预设测量门限值,增加至少两种参考信号类型指示的波束失败计数值。
  21. 根据权利要求10所述的方法,其中,至少两种参考信号类型指示同一个波束,所述方法还包括:
    如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,增加至少两种参考信号类型指示的波束失败计数值;
    或者,
    如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,根据指示同一波束的参考信号类型的数量增加至少两种参考信号类型指示的波 束失败计数值。
  22. 一种用户终端,包括:
    确定模块,用于从至少两种参考信号类型指示的波束集合中确定一个或至少两个波束失败;
    判断模块,用于根据确定的一个或至少两个波束失败,判断是否满足波束失败恢复条件;
    发送模块,用于如果满足所述波束失败恢复条件,则发送失败恢复请求。
  23. 根据权利要求22所述的用户终端,其中,所述确定模块包括:
    第一确定单元,用于确定波束集合中一个或多个波束的波束测量值,所述波束集合中包括至少两种参考信号类型指示的波束;
    第二确定单元,用于根据所述一个或多个波束的波束测量值,确定一个或至少两个波束失败。
  24. 根据权利要求23所述的用户终端,其中,所述波束集合中波束个数由网络侧配置。
  25. 根据权利要求23所述的用户终端,其中,所述波束集合中不同参考信号类型指示的波束个数由网络侧配置为不同的数值,或者,所述波束集合中不同参考信号类型指示的波束个数由网络侧配置为一个相同的数值。
  26. 根据权利要求23所述的用户终端,其中,所述第一确定单元进一步用于:确定波束集合中所有参考信号类型指示的波束测量值。
  27. 根据权利要求26所述的用户终端,其中,所述判断模块进一步用于:如果波束集合中所有参考信号类型指示的波束测量值中低于预设测量门限值的个数大于或等于预设个数门限值时,或者如果波束集合中所有参考信号类型指示的波束测量值均低于预设测量门限值时,判定满足波束失败恢复条件。
  28. 根据权利要求23所述的用户终端,其中,所述第一确定单元进一步用于:确定用于判断波束失败的参考信号指示类型;根据所述参考信号指示类型确定波束集合中一个或多个波束的波束测量值。
  29. 根据权利要求28所述的用户终端,其中,所述参考信号指示类型包括:指示使用一种用于判断波束失败的参考信号类型,和/或,指示使用至少两种用于判断波束失败的参考信号类型。
  30. 根据权利要求28所述的用户终端,其中,所述参考信号指示类型由网络侧配置。
  31. 根据权利要求29所述的用户终端,其中,如果所述参考信号指示类型为使用至少两种用于判断波束失败的参考信号类型;
    所述判断模块进一步用于:对不同的参考信号类型指示的波束失败进行统一的波束失败计数,得到波束失败计数值;如果波束失败计数值大于或等于第一预设计数门限值,则判定满足波束失败恢复条件;
    或者,
    对不同的参考信号类型指示的波束失败分别计数,得到一种或至少两种参考信号类型指示的波束失败计数值;如果一种或至少两种参考信号类型指示的波束失败的计数值大于或等于第二预设计数门限值,则判定满足波束失败恢复条件。
  32. 根据权利要求28所述的用户终端,还包括:
    获取模块,用于获取网络侧配置的所述用户终端进行波束测量的平均滤波的第一时间窗口。
  33. 根据权利要求23所述的用户终端,其中,所述第二确定单元进一步用于:
    在第二时间窗口内检测到预设的一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设的一种参考信号类型指示的预设测量门限值,则确定预设的一种参考信号类型指示的波束失败;
    或者,
    在第二时间窗口内检测到任意一种参考信号类型指示的波束测量值;如果所述波束测量值低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
    或者,
    在第二时间窗口内检测到至少两种参考信号类型指示的波束测量值;如果所述波束测量值均低于预设测量门限值,则确定与所述波束测量值对应的波束失败;
    或者,
    在第二时间窗口内检测到至少两种参考信号类型中的一种或至少两种参考信号类型指示的波束测量值;如果所述一种或至少两种参考信号类型指示的波束测量值低于预设测量门限值的统计次数大于预设次数门限值,则确定与所述波束测量值对应的波束失败。
  34. 根据权利要求33所述的用户终端,其中,所述预设测量门限值是绝对门限值或者相对门限值。
  35. 根据权利要求33所述的用户终端,其中,所述预设测量门限值至少包括以下一种或多种:信号与干扰加噪声比SINR门限值、参考信号接收功率RSRP门限值和参考信号接收质量RSRQ门限值。
  36. 根据权利要求33所述的用户终端,其中,不同的参考信号类型指示的预设测量门限值不同,或者不同的参考信号类型指示的预设测量门限值相同。
  37. 根据权利要求31所述的用户终端,还包括:
    测量控制模块,用于如果至少两种参考信号类型指示的波束都未失败,继续进行波束测量。
  38. 根据权利要求31所述的用户终端,还包括:
    第一计数模块,用于如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,判定至少两种参考信号类型指示的波束未失败,不进行波束失败计数的累加;
    或者,
    如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,判定至少两种参考信号类型指示的波束失败,增加至少两种参考信号类型指示的波束失败计数值。
  39. 根据权利要求31所述的用户终端,还包括:
    第二计数模块,用于如果至少两种参考信号类型中的第一种参考信号类型指示的波束失败,且至少两种参考信号类型中的第二种参考信号类型指示的波束未失败,增加至少两种参考信号类型指示的波束失败计数值。
  40. 根据权利要求39所述的用户终端,其中,所述第二计数模块进一步用于:按照预定的比例增加至少两种参考信号类型指示的波束失败计数值;或者,根据预先配置的随机规则增加至少两种参考信号类型指示的波束失败计数值;或者,根据历史波束测量结果,选择性增加至少两种参考信号类型指示的波束失败计数值波束失败计数值。
  41. 根据权利要求40所述的用户终端,其中,所述第二计数模块进一步用于:计算历史波束测量结果的加权平均值;如果历史波束测量结果的加权平均值小于预设测量门限值,增加至少两种参考信号类型指示的波束失败计数值。
  42. 根据权利要求31所述的用户终端,还包括:
    第三计数模块,用于如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,增加至少两种参考信号类型指示的波束失败计数值;或者,如果至少两种参考信号类型中所有参考信号类型指示的波束均失败,根据指示同一波束的参考信号类型的数量增加至少两种参考信号类型指示的波束失败计数值。
  43. 一种用户终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的波束失败恢复程序,所述波束失败恢复程序被所述处理器执行时实现如权利要求1至21中任一项所述的波束失败恢复方法的步骤。
  44. 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有波束失败恢复程序,所述波束失败恢复程序被处理器执行时实现如权利要求1至21中任一项所述的波束失败恢复方法的步骤。
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