WO2020200116A1 - Procédé et dispositif d'évaluation de qualité de liaison radio ou de qualité de faisceau - Google Patents

Procédé et dispositif d'évaluation de qualité de liaison radio ou de qualité de faisceau Download PDF

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Publication number
WO2020200116A1
WO2020200116A1 PCT/CN2020/081782 CN2020081782W WO2020200116A1 WO 2020200116 A1 WO2020200116 A1 WO 2020200116A1 CN 2020081782 W CN2020081782 W CN 2020081782W WO 2020200116 A1 WO2020200116 A1 WO 2020200116A1
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terminal device
rlm
bfd
quality
drx
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PCT/CN2020/081782
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English (en)
Chinese (zh)
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王雪松
李铁
类春阳
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华为技术有限公司
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Publication of WO2020200116A1 publication Critical patent/WO2020200116A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • This application relates to the field of communication technology, and in particular to a method and device for evaluating wireless link quality or beam quality.
  • a terminal device when a terminal device evaluates the quality of a wireless link or beam, it can perform periodic evaluation.
  • the determination of the period generally needs to make the period as short as possible on the premise that a new metric value can be obtained in each period, so as to reflect changes in the quality of the wireless link or beam more timely.
  • the period is based on a preset value, one of the minimum period of a reference signal (RS) used for radio link or beam quality assessment, or a discontinuous reception (DRX) period of a terminal device. Or multiple determinations, the specific determination method depends on the specific scenario.
  • the current cycle may cause frequent wireless link failures or beam failures.
  • This application provides a method and device for evaluating wireless link quality or beam quality, so as to avoid frequent wireless link failures or beam failures.
  • a wireless link quality evaluation method which includes: a terminal device receives configuration information for configuring at least one RLM-RS for the terminal device from a network device, and periodically checks the terminal device according to the RLM-RS. The quality of the wireless link is evaluated.
  • RLM-RS is used for terminal equipment to monitor the quality of the wireless link
  • the above period is T milliseconds
  • T is determined according to the values of B1 and B2
  • B1 is a preset or preconfigured value
  • B2 is based on N and P
  • N is the received beam weighting factor
  • N is a positive integer
  • P is the collision weighting factor
  • P is the same frequency as the MG and the MG in the time domain according to the at least one RLM-RS
  • the overlap of at least one of the measured SMTCs is determined.
  • the DRX cycle is related to N and P, and the current cycle determination method does not consider the influence of N and/or P.
  • the value of N and/or P is taken as a consideration factor when determining the evaluation period of the wireless link quality, so that under the influence of N and/or P, the evaluation period of the wireless link quality of the terminal device is It is more reasonable and improves the probability that the terminal device obtains a valid metric value in the evaluation period, and avoids frequent wireless link failures.
  • N i is the i th RLM-RS receive beam corresponding weighting factor
  • P i is the i th RLM-RS weighting factor corresponding to the collision. It is understandable that the terminal equipment uses multiple receiving beams for beam scanning to receive RLM-RS, and/or collisions between RLM-RS and MG or SMTC measured on the same frequency, resulting in the existing wireless link quality assessment It may not be possible to obtain a valid measurement value within the period.
  • the evaluation period of the terminal device when performing the wireless link quality evaluation becomes longer, for example, it becomes N times, P times or N*P times, thereby increasing the probability that the terminal device obtains at least one valid metric value in the evaluation period of the wireless link quality, and avoiding frequent wireless link failures.
  • the P 320.
  • the B 1 10.
  • a wireless link quality assessment device including: a communication unit and a processing unit; the communication unit is used to receive configuration information from a network device, and the configuration information is used to configure at least one RLM-RS, RLM-RS for the device.
  • RS is used for the device to monitor the quality of the wireless link; the processing unit is used to periodically evaluate the quality of the wireless link of the device according to RLM-RS; where the period is T milliseconds, and T is based on the values of B1 and B2 Determined, B1 is a preset or pre-configured value, B2 is determined according to at least one of N and P and the period of at least one RLM-RS, N is the received beam weighting factor, N is a positive integer, and P is collision The weighting factor, P, is determined according to the overlap of at least one RLM-RS with at least one of the MG and the SMTC measured on the same frequency in the time domain.
  • the P 320.
  • the B 1 10.
  • a beam quality assessment method which includes: a terminal device receives configuration information for configuring at least one BFD-RS for the terminal device from a network device, and periodically performs a beam measurement on the terminal device according to the BFD-RS. Quality is evaluated.
  • BFD-RS is used for terminal equipment to detect the quality of the beam
  • the above period is T milliseconds
  • T is determined according to the values of B1 and B2
  • B1 is a preset or preconfigured value
  • B2 is based on at least one of N and P
  • N is the received beam weighting factor
  • N is a positive integer
  • P is the collision weighting factor
  • P is measured based on at least one BFD-RS in the time domain with the MG and the same frequency
  • the overlap of at least one of the SMTCs is determined.
  • Whether a new metric value can be obtained in the evaluation period (ie T) of the beam quality of the terminal device and whether the new metric value is a valid metric value is not only related to the minimum period of BFD-RS and the DRX cycle of the terminal device It is related to N and P, and the current cycle determination method does not consider the influence of N and/or P.
  • the value of N and/or P is taken into consideration when determining the evaluation period of beam quality, so that under the influence of N and/or P, the evaluation period of the beam quality of the terminal equipment is more reasonable, thereby The probability that the terminal device obtains a valid metric value in the evaluation period is improved, and frequent beam failures are avoided.
  • N i is the received beam weighting factor corresponding to the i-th BFD-RS
  • P i is the collision weighting factor corresponding to the i-th BFD-RS. It is understandable that the terminal equipment uses multiple receiving beams for beam scanning to receive BFD-RS, and/or collisions between BFD-RS and MG or SMTC measured at the same frequency, resulting in the existing beam quality assessment period It may not be possible to obtain a valid measurement value.
  • the evaluation period when the terminal device performs beam quality evaluation becomes longer, for example, it becomes N times, P times or N times the original *P times, so as to improve the probability that the terminal device obtains at least one effective metric value in the evaluation period of the beam quality, and avoid frequent beam failures.
  • the P 320.
  • the B 1 2.
  • a beam quality assessment device including: a communication unit and a processing unit; the communication unit is configured to receive configuration information from a network device, and the configuration information is used to configure at least one BFD-RS for the device.
  • the device detects the quality of the beam; the processing unit is used to periodically evaluate the quality of the beam of the device according to the BFD-RS; wherein the period is T milliseconds, and T is determined according to the values of B1 and B2, and B1 is preset Set or pre-configured value, B2 is determined according to at least one of N and P and the period of at least one BFD-RS, N is the received beam weighting factor, N is a positive integer, P is the collision weighting factor, and P is based on at least The overlap of a BFD-RS with at least one of the MG and the SMTC measured on the same frequency in the time domain is determined.
  • the P 320.
  • the B 1 2.
  • a method for evaluating radio link quality or beam quality including: a terminal device receives configuration information for configuring a first RS for the terminal device and a QCL relationship between the first RS and other RSs from a network device , And evaluate the quality of the wireless link or beam of the terminal device according to the first RS and the QCL relationship between the first RS and other RSs.
  • the first RS is used for the terminal equipment to monitor the quality of the wireless link or beam.
  • the first RS is located at a low frequency in frequency, the first RS does not overlap with the MG in the time domain.
  • the first RS does not overlap with the MG and the SMTC measured at the same frequency in the time domain.
  • N 1.
  • P 1.
  • some wireless link quality or beam assessment cycles when wireless link quality or beam quality assessment is performed, there will be no wireless link failure or frequent occurrence of beam failure.
  • a wireless link quality or beam quality evaluation device including: a communication unit and a processing unit; the communication unit is configured to receive a first RS for configuring the device and the first RS and other RSs from a network device The first RS is used for the device to monitor the quality of the wireless link or beam.
  • the first RS is used for the device to monitor the quality of the wireless link or beam.
  • the first RS is located at a low frequency in frequency, the first RS does not overlap with the MG in the time domain.
  • the processing unit is used to determine the QCL between the first RS and other RSs The relationship evaluates the quality of the wireless link or beam of the device.
  • a method for evaluating radio link quality or beam quality including: a network device sends configuration information for configuring a first RS for the terminal device and a QCL relationship between the first RS and other RSs to the terminal device , And send the first RS to the terminal device based on the configuration information.
  • the first RS is used for the terminal equipment to monitor the quality of the wireless link or beam.
  • the first RS is located at a low frequency in frequency, the first RS does not overlap with the MG in the time domain.
  • the first RS does not overlap with the MG and the SMTC measured at the same frequency in the time domain.
  • N 1.
  • P 1.
  • some wireless link quality or beam assessment cycles when wireless link quality or beam quality assessment is performed, there will be no wireless link failure or frequent occurrence of beam failure.
  • a wireless link quality or beam quality assessment device including: a communication unit and a processing unit; the processing unit is configured to send to the terminal device through the communication unit a first RS and a first RS configured for the terminal device.
  • the first RS is used by the terminal device to monitor the quality of the wireless link or beam. When the first RS is located at a low frequency in frequency, the first RS is compared with The MG does not overlap.
  • the processing unit is also used to communicate to the terminal device through the communication unit based on the configuration information. Send the first RS.
  • a wireless link quality evaluation method including: a terminal device receives configuration information from a network device, the configuration information is used to configure the terminal device with a first threshold and a second threshold of a first counter The first threshold value of the counter and the first threshold value of the timer, the first counter is used to count the evaluation results that are out of step, and the second counter is used to evaluate that the evaluation results are synchronized The results are counted.
  • the evaluation result being out of synchronization means that the BLER corresponding to the wireless link estimated by the terminal device on all RLM-RSs configured by the network device is higher than the first threshold, and the evaluation result is Synchronization means that the BLER corresponding to the radio link estimated by the terminal device on at least one of all RLM-RSs configured by the network device is lower than a second threshold, and the second threshold is smaller than the first threshold.
  • the RLM-RS is used by the terminal device to monitor the quality of the wireless link
  • the first threshold of the timer is a waiting period for confirming that the quality of the wireless link cannot be improved
  • the terminal device determines the second threshold value of the first counter according to the first threshold value of the first counter, T, and at least one of N and P, and according to the first threshold value of the second counter , T, and at least one of N and P determine the second threshold value of the second counter, and determine the timing according to at least one of the first threshold value of the timer, T, and N and P
  • T is the evaluation period of the wireless link quality of the terminal device
  • the N is the received beam weighting factor
  • the N is a positive integer
  • the P is the collision weighting factor
  • the P is determined according to the overlap of all RLM-RSs in the time domain with at least one of the MG and
  • the terminal device increases the first counter, second counter, and The upper limit of the timer avoids unreasonable wireless link failure.
  • the second threshold value of the first counter is k times the first threshold value of the first counter
  • the second threshold value of the second counter is the K times the first threshold value of the second counter
  • the TRLM-RS,i is the transmission period of the i-th RLM-RS configured by the network device for the terminal device
  • the N i is the receiving beam corresponding to the i-th RLM-RS weighting factor
  • said P i is the i-th RLM-RS weighting factor corresponding to the collision.
  • a wireless link quality evaluation device including: a communication unit and a processing unit; the communication unit is configured to receive configuration information from a network device, and the configuration information is used to configure the first The first threshold value of the counter, the first threshold value of the second counter, and the first threshold value of the timer, the first counter is used to count the evaluation result of out-of-synchronization, the second The counter is used to count the evaluation results for which the evaluation result is synchronized.
  • the evaluation result being out of synchronization means that the BLER corresponding to the wireless link estimated by the device on all RLM-RSs configured by the network device is higher than The first threshold, the evaluation result being synchronized means that the BLER corresponding to the radio link estimated by the device on at least one of all RLM-RSs configured by the network device is lower than the second threshold, so The second threshold is less than the first threshold, the RLM-RS is used by the device to monitor the quality of the wireless link, and the first threshold of the timer is to confirm that the quality of the wireless link cannot be Improved waiting period; the processing unit is configured to determine the second threshold of the first counter according to the first threshold of the first counter, T, and at least one of N and P, according to the At least one of the first threshold value, T, and N and P of the second counter determines the second threshold value of the second counter, according to the first threshold value, T, and N of the timer At least one of and P determines the second threshold of the timer, the second threshold of the first counter, the second threshold of
  • the second threshold value of the first counter is k times the first threshold value of the first counter
  • the second threshold value of the second counter is the K times the first threshold value of the second counter
  • the TRLM-RS,i is the transmission period of the i-th RLM-RS configured by the network equipment for the device
  • the N i is the received beam weight corresponding to the i-th RLM-RS
  • the P i is the collision weighting factor corresponding to the i-th RLM-RS.
  • a beam quality evaluation method including: a terminal device receives configuration information from a network device, the configuration information is used to configure a first threshold value of a counter and a first threshold value of a timer for the terminal device Threshold value, the counter is used to count the evaluation result that the evaluation result is out of synchronization, and the evaluation result is out of synchronization refers to the beam estimated by the terminal device on all BFD-RS configured by the network device
  • the corresponding BLERs are all higher than the first threshold
  • the BFD-RS is used by the terminal device to detect the quality of the beam
  • the first threshold of the timer is required to confirm the improvement of the beam quality
  • the waiting period the terminal device determines the second threshold of the counter according to the first threshold of the counter, T, and at least one of N and P, and according to the first threshold of the timer At least one of the value, T, and N and P determines the second threshold value of the timer, and the second threshold value of the counter and the second threshold value of the time
  • the terminal device increases the first counter, second counter, and timer.
  • the upper limit to avoid unreasonable wireless link failure.
  • the second threshold of the counter is k times the first threshold of the counter
  • a beam quality evaluation device including: a communication unit and a processing unit; the communication unit is configured to receive configuration information from a network device, and the configuration information is used to configure the device with a second counter of the device. A threshold value and a first threshold value of a timer. The counter is used to count the evaluation results for which the evaluation result is out-of-synchronization.
  • the evaluation result is out-of-synchronization refers to all BFDs configured by the device in the network equipment -The BLERs corresponding to the beams estimated on the RS are all higher than the first threshold, the BFD-RS is used by the device to detect the quality of the beam, and the first threshold of the timer is confirmation The waiting period required for the quality improvement of the beam; the processing unit is configured to determine the second threshold value of the counter according to at least one of the first threshold value, T, and N and P of the counter , Determining the second threshold value of the timer according to the first threshold value of the timer, T, and at least one of N and P, the second threshold value of the counter and the timer value
  • the second threshold value is the threshold value used when the device performs beam quality detection
  • T is the evaluation period of the device for beam quality
  • the N is the received beam weighting factor
  • the N is a positive integer
  • the P is a collision weighting factor
  • the P is determined based on the overlap of all BFD-RS with at least
  • the second threshold of the counter is k times the first threshold of the counter
  • a wireless link quality evaluation method which includes: a network device determines threshold values of a first counter, a second counter, and a timer according to at least one of N and P, where N is the receive beam The weighting factor, the N is a positive integer, the P is the collision weighting factor, and the P is determined based on the overlap of all RLM-RSs in the time domain with at least one of the MG and the SMTC measured at the same frequency.
  • a counter is used to count the evaluation results whose evaluation results are out-of-synchronization
  • the second counter is used to count the evaluation results whose evaluation results are out-of-synchronization.
  • the evaluation result being out-of-synchronization refers to the configuration of the terminal device in the network device
  • the BLERs corresponding to the radio links estimated on all RLM-RSs are higher than the first threshold, and the evaluation result is that synchronization means that at least one RLM-RS of all RLM-RSs configured by the terminal device in the network device
  • the BLER corresponding to the radio link estimated on the RS is lower than a second threshold, and the second threshold is less than the first threshold, and the RLM-RS is used for the terminal device's quality of the radio link
  • the threshold of the timer is a waiting period for confirming that the quality of the wireless link cannot be improved; the network device sends configuration information to the terminal device, and the configuration information is used for the terminal device Configure the threshold values of the first counter, the second counter, and the timer.
  • the effect of not being able to collect a valid metric value in a radio link quality evaluation period is offset.
  • the threshold of the first counter is less than or equal to 960
  • the threshold of the second counter is less than or equal to 480
  • the threshold of the timer is less than or equal to 288 seconds.
  • a wireless link quality evaluation device including: a communication unit and a processing unit; the processing unit is configured to determine a first counter, a second counter, and a timer according to at least one of N and P
  • the N is the received beam weighting factor
  • the N is a positive integer
  • the P is the collision weighting factor
  • the P is based on all RLM-RS in the time domain with the MG and the SMTC measured at the same frequency
  • the overlap of at least one of the two is determined, the first counter is used to count the evaluation results whose evaluation results are out of step, and the second counter is used to count the evaluation results whose evaluation results are synchronized, and the evaluation result is Out-of-synchronization means that the BLER corresponding to the wireless link estimated by the terminal device on all RLM-RSs configured by the network device is higher than the first threshold, and the evaluation result is synchronous means that the terminal device is configured on the network device The BLER corresponding to the radio link estimated on at least one RLM-RS in all RLM
  • the threshold of the first counter is less than or equal to 960
  • the threshold of the second counter is less than or equal to 480
  • the threshold of the timer is less than or equal to 288 seconds.
  • a wireless link quality evaluation method which includes: a terminal device receives configuration information from a network device, and the configuration information is used to configure a first counter, a second counter, and a timer for the terminal device. Threshold value, the threshold value of the first counter, the second counter and the timer is determined according to at least one of N and P, where N is a receive beam weighting factor, and N is a positive integer, The P is determined based on the overlap of all RLM-RSs in the time domain with at least one of the MG and the SMTC measured at the same frequency.
  • the first counter is used to count the evaluation results of out-of-synchronization.
  • the second counter is used to count the evaluation results for which the evaluation result is synchronized.
  • the evaluation result being out of synchronization refers to the BLER corresponding to the radio link estimated by the terminal device on all RLM-RSs configured by the network device Are higher than the first threshold, and the evaluation result is synchronous means that the BLER corresponding to the radio link estimated by the terminal device on at least one of all RLM-RSs configured by the network device is lower than the first Two thresholds, the second threshold is less than the first threshold, the RLM-RS is used by the terminal device to monitor the quality of the wireless link, and the threshold of the timer is to confirm the wireless A waiting period for which the quality of the link cannot be improved; the terminal device monitors the quality of the wireless link according to the threshold values of the first counter, the second counter, and the timer.
  • the effect of not being able to collect a valid metric value in a radio link quality evaluation period is offset.
  • the threshold of the first counter is less than or equal to 960
  • the threshold of the second counter is less than or equal to 480
  • the threshold of the timer is less than or equal to 288 seconds.
  • a wireless link quality assessment device including: a communication unit and a processing unit; the communication unit is configured to receive configuration information from a network device, and the configuration information is used to configure the device Thresholds of a counter, a second counter, and a timer, the thresholds of the first counter, the second counter, and the timer are determined according to at least one of N and P, where N is the receive beam
  • the weighting factor the N is a positive integer
  • the P is determined according to the overlap of all RLM-RSs in the time domain with at least one of the MG and the SMTC measured at the same frequency
  • the first counter is used to evaluate the result of Out-of-synchronization evaluation results are counted
  • the second counter is used to count the evaluation results that are synchronized.
  • the evaluation result being out-of-synchronization means that the device estimates the results on all RLM-RSs configured by the network device
  • the BLER corresponding to the wireless link is higher than the first threshold
  • the evaluation result is that the synchronization means that the device estimates the wireless link on at least one of all RLM-RSs configured by the network device.
  • the BLER corresponding to the link is lower than a second threshold, the second threshold is less than the first threshold, the RLM-RS is used by the device to monitor the quality of the wireless link, and the timer gate
  • the limit is a waiting period for confirming that the quality of the wireless link cannot be improved;
  • the processing unit is configured to check the wireless link according to the thresholds of the first counter, the second counter, and the timer. The quality of the road is monitored.
  • the threshold of the first counter is less than or equal to 960
  • the threshold of the second counter is less than or equal to 480
  • the threshold of the timer is less than or equal to 288 seconds.
  • a beam quality evaluation method including: a network device determines thresholds of counters and timers according to N and P, where N is a received beam weighting factor, and N is a positive integer, and P is the collision weighting factor.
  • the P is determined based on the overlap of all BFD-RSs in the time domain with at least one of the MG and the SMTC measured at the same frequency.
  • the counter is used to perform the evaluation result of out-of-synchronization.
  • the evaluation result being out of synchronization means that the BLER corresponding to the beam estimated by the terminal device on all BFD-RS configured by the network device is higher than the first threshold, and the BFD-RS is used for the terminal device
  • the quality of the beam is detected, and the threshold of the timer is the waiting period required to confirm that the quality of the beam is improved; the network device sends configuration information to the terminal device, and the configuration information is used for Configure the threshold value of the timer of the counter for the terminal device.
  • the effect of not being able to collect a valid metric value in a beam quality evaluation period is offset.
  • the threshold value of the counter is less than or equal to 480
  • the threshold value of the timer is less than or equal to 480 T, where T is the evaluation period of the beam quality of the terminal device.
  • a beam quality assessment device including: a communication unit and a processing unit; the processing unit is configured to determine the thresholds of the counter and the timer according to N and P, where N is the received beam weight The N is a positive integer, the P is the collision weighting factor, and the P is determined based on the overlap of all BFD-RSs in the time domain with at least one of the MG and the SMTC measured at the same frequency.
  • the counter uses To perform statistics on the evaluation result that the evaluation result is out-of-synchronization, the evaluation result being out-of-synchronization means that the BLER corresponding to the beam estimated by the terminal device on all BFD-RS configured by the network device is higher than the first threshold,
  • the BFD-RS is used for the terminal device to detect the quality of the beam, and the threshold of the timer is the waiting period required to confirm the quality improvement of the beam;
  • the communication unit is used for The terminal device sends configuration information, where the configuration information is used to configure the terminal device with the threshold value of the counter and the timer.
  • the threshold value of the counter is less than or equal to 480
  • the threshold value of the timer is less than or equal to 480 T, where T is the evaluation period of the beam quality of the terminal device.
  • a beam quality evaluation method including: a terminal device receives configuration information from a network device, the configuration information is used to configure a counter and a timer threshold for the terminal device, the counter and The threshold value of the timer is determined according to N and P, where N is a received beam weighting factor, N is a positive integer, and P is a collision weighting factor, and P is based on all BFD-RS in the time domain
  • N is a received beam weighting factor
  • N is a positive integer
  • P is a collision weighting factor
  • P is based on all BFD-RS in the time domain
  • the evaluation result is out of synchronization means that the terminal device is configured on the network device
  • the BLERs corresponding to the beams estimated on all BFD-RSs are higher than the first threshold.
  • the BFD-RS is used by the terminal device to detect the quality of the beams.
  • the threshold of the timer is Confirm the waiting period required for the quality improvement of the beam; the terminal device detects the quality of the beam according to the threshold value of the counter and the timer.
  • the effect of not being able to collect a valid metric value in a beam quality evaluation period is offset.
  • the threshold value of the counter is less than or equal to 480
  • the threshold value of the timer is less than or equal to 480 T, where T is the evaluation period of the beam quality of the terminal device.
  • a beam quality evaluation device including: a communication unit and a processing unit; the communication unit is configured to receive configuration information from a network device, and the configuration information is used to configure a counter and timing for the device
  • the threshold value of the counter and the timer is determined according to N and P, where N is the receiving beam weighting factor, the N is a positive integer, the P is the collision weighting factor, and the P is determined based on the overlap of all BFD-RSs in the time domain with at least one of the MG and the SMTC measured at the same frequency.
  • the counter is used to count the evaluation results for which the evaluation result is out of step, and the evaluation result is out of step.
  • Step means that the BLER corresponding to the beam estimated by the device on all BFD-RS configured by the network equipment is higher than the first threshold, and the BFD-RS is used by the device to detect the quality of the beam, so
  • the threshold value of the timer is a waiting period required to confirm the improvement of the quality of the beam; the processing unit is configured to detect the quality of the beam according to the threshold value of the counter and the timer.
  • the threshold value of the counter is less than or equal to 480
  • the threshold value of the timer is less than or equal to 480 T
  • T is the evaluation period of the beam quality of the device.
  • a wireless link quality evaluation method including: a terminal device obtains indication information or an evaluation result, where the indication information is used to indicate that the terminal device is in an evaluation interval for evaluating the quality of the wireless link
  • the effective metric value is not obtained within the network, and the effective metric value refers to the metric value obtained by the terminal device using the receiving beam of the best receiving direction to measure the RLM-RS, and the RLM-RS is used for the terminal device to wirelessly
  • the quality of the link is monitored, and the evaluation result is the result of evaluating the quality of the wireless link by the terminal device according to the metric value obtained in the evaluation interval for evaluating the quality of the wireless link;
  • the terminal device receives the indication information, the terminal device suspends the timing of a timer, the timer corresponds to a threshold, and the threshold of the timer is to confirm that the quality of the wireless link cannot be improved If the terminal device receives the evaluation result, if the timer is suspended, the terminal device starts the timing of the timer.
  • the indication information or the evaluation result can be understood to include but not limited to being obtained from the bottom layer (such as the physical layer, etc.) of the terminal device.
  • the terminal device excludes the radio link quality evaluation period for which no valid metric value is collected, so that only the reported result containing the valid metric value is considered in the RLM process, thereby avoiding inconsistency. A reasonable wireless link failed.
  • a wireless link quality evaluation device including: a communication unit and a processing unit; the communication unit is configured to receive indication information or an evaluation result, and the indication information is used to indicate that the device is The effective metric value is not obtained in the evaluation interval for evaluating the quality of the wireless link, and the effective metric value refers to the metric value obtained by measuring the RLM-RS by the device using the receiving beam of the best receiving direction.
  • RS is used by the device to monitor the quality of the wireless link
  • the evaluation result is the performance of the device on the quality of the wireless link according to the metric value obtained in the evaluation interval for evaluating the quality of the wireless link.
  • the processing unit is configured to suspend the timing of a timer, the timer corresponds to a threshold, and the threshold of the timer is The waiting period for confirming that the quality of the wireless link cannot be improved; if the communication unit receives the evaluation result, in the case that the timer is suspended, the processing unit is configured to count the timer start up.
  • the indication information or the evaluation result received by the communication unit can be understood to include, but is not limited to, obtained from a unit of a lower layer (such as a physical layer, etc.) relative to the communication unit.
  • a beam quality evaluation method including: a terminal device obtains indication information or an evaluation result, where the indication information is used to indicate that the terminal device does not obtain the information in the evaluation interval for evaluating the beam quality
  • Effective metric value refers to the metric value obtained by the terminal device using the receiving beam in the best receiving direction to measure the BFD-RS, and the BFD-RS is used by the terminal device to monitor the quality of the beam
  • the evaluation result is the result obtained by the terminal device evaluating the beam quality according to the metric value obtained in the evaluation interval for evaluating the beam quality; if the terminal device receives the indication information, The terminal device suspends the timing of a timer, the timer corresponds to a threshold value, and the threshold value corresponding to the timer is the waiting period required to confirm the quality improvement of the beam; if the terminal device receives When the evaluation result is reached, when the timer is suspended, the terminal device starts the timing of the timer.
  • the indication information or the evaluation result can be understood to include but not limited to being obtained from the bottom layer (such as the physical layer) of the terminal device.
  • the terminal device excludes the beam quality evaluation period for which no valid metric value is collected, so that only the reported result containing the valid metric value is considered in the BFD process, thereby avoiding unreasonable The beam failed.
  • a beam quality evaluation device including: a communication unit and a processing unit; the communication unit is configured to receive instruction information or an evaluation result, and the instruction information is used to indicate that the device is evaluating
  • the effective metric value is not obtained in the evaluation interval of the beam quality, and the effective metric value refers to the metric value obtained by measuring the BFD-RS by the receiving beam of the best receiving direction by the device, and the BFD-RS is used for all
  • the device monitors the quality of the beam, and the evaluation result is the result of evaluating the beam quality by the device according to the metric value obtained in the evaluation interval for evaluating the beam quality; if the communication unit Upon receiving the instruction information, the processing unit is configured to suspend the timing of a timer, the timer corresponds to a threshold value, and the threshold value corresponding to the timer is required to confirm the quality improvement of the beam If the communication unit receives the evaluation result, if the timer is suspended, the processing unit is used to start the timing of the timer.
  • the indication information or the evaluation result received by the communication unit can be understood to include, but is not limited to, being obtained from a unit of a lower layer (such as a physical layer, etc.) relative to the communication unit.
  • a wireless link quality assessment device which includes a processor.
  • the processor is connected to the memory, and the memory is used to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, so as to implement the first, ninth, thirteenth, fifteenth, or twenty-first aspect Any one of the methods provided.
  • the memory and the processor can be integrated together or can be independent devices. In the latter case, the memory may be located in the wireless link quality assessment device or outside the wireless link quality assessment device.
  • the processor includes a logic circuit and an input interface and/or an output interface.
  • the output interface is used to execute the sending action in the corresponding method
  • the input interface is used to execute the receiving action in the corresponding method.
  • the wireless link quality assessment device further includes a communication interface and a communication bus, and the processor, the memory and the communication interface are connected through the communication bus.
  • the communication interface is used to perform the sending and receiving actions in the corresponding method.
  • the communication interface may also be called a transceiver.
  • the communication interface includes a transmitter and a receiver. In this case, the transmitter is used to perform the sending action in the corresponding method, and the receiver is used to perform the receiving action in the corresponding method.
  • the wireless link quality assessment device exists in the form of a chip product.
  • a beam quality assessment device which includes a processor.
  • the processor is connected to the memory, and the memory is used to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, so as to realize the third aspect, the eleventh aspect, the seventeenth aspect, the nineteenth aspect or the twenty-third aspect Any one of the methods provided in.
  • the memory and the processor can be integrated together or can be independent devices. In the latter case, the memory may be located in the beam quality assessment device or outside the beam quality assessment device.
  • the processor includes a logic circuit and an input interface and/or an output interface.
  • the output interface is used to execute the sending action in the corresponding method
  • the input interface is used to execute the receiving action in the corresponding method.
  • the beam quality evaluation device further includes a communication interface and a communication bus, and the processor, the memory and the communication interface are connected through the communication bus.
  • the communication interface is used to perform the sending and receiving actions in the corresponding method.
  • the communication interface may also be called a transceiver.
  • the communication interface includes a transmitter and a receiver. In this case, the transmitter is used to perform the sending action in the corresponding method, and the receiver is used to perform the receiving action in the corresponding method.
  • the beam quality assessment device exists in the form of a chip product.
  • a wireless link and beam quality evaluation device which includes a processor.
  • the processor is connected to the memory, the memory is used to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, so as to implement any one of the methods provided in the fifth aspect or the seventh aspect.
  • the memory and the processor can be integrated together or can be independent devices. In the latter case, the memory may be located in the wireless link and the beam quality assessment device, or outside the wireless link and the beam quality assessment device.
  • the processor includes a logic circuit and an input interface and/or an output interface.
  • the output interface is used to execute the sending action in the corresponding method
  • the input interface is used to execute the receiving action in the corresponding method.
  • the wireless link and beam quality assessment device further includes a communication interface and a communication bus, and the processor, the memory and the communication interface are connected through the communication bus.
  • the communication interface is used to perform the sending and receiving actions in the corresponding method.
  • the communication interface may also be called a transceiver.
  • the communication interface includes a transmitter and a receiver. In this case, the transmitter is used to perform the sending action in the corresponding method, and the receiver is used to perform the receiving action in the corresponding method.
  • the wireless link and beam quality assessment device exist in the form of a chip product.
  • a communication system including: the devices provided in the sixth and eighth aspects; or, the devices provided in the fourteenth and sixteenth aspects; or, the eighteenth and second aspects The device provided by ten aspects.
  • a computer-readable storage medium including instructions, which when run on a computer, cause the computer to execute the first, third, fifth, seventh, and ninth aspects .
  • the eleventh aspect, the thirteenth aspect, the fifteenth aspect, the seventeenth aspect, the nineteenth aspect, the twenty-first aspect, and the twenty-third aspect provide any method.
  • the thirtieth aspect provides a computer program product containing instructions, when the instructions are run on a computer, the computer executes the first, third, fifth, seventh, ninth, and tenth aspects. Any method provided by any one of the first aspect, the thirteenth aspect, the fifteenth aspect, the seventeenth aspect, the nineteenth aspect, the twenty-first aspect, and the twenty-third aspect.
  • the second, fourth, sixth, eighth, tenth, twelfth, fourteenth, sixteenth, eighteenth, twentieth, twenty-second aspects can be found in the first aspect, third aspect, fifth aspect, seventh aspect, ninth aspect, eleventh aspect, and thirteenth aspect. , Fifteenth, Seventeenth, Nineteenth, Twenty-first, and Twenty-third aspects of the technical effects brought about by the corresponding implementation methods, which will not be repeated here.
  • FIG. 1 is a schematic diagram of the composition of a network architecture provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of a DRX cycle provided by an embodiment of this application.
  • FIG. 3 and 4 are schematic diagrams of an evaluation interval provided by an embodiment of this application.
  • 5 to 8 are schematic diagrams of resource collisions between different signals provided by embodiments of this application.
  • FIG. 9 is a schematic diagram of a transmitting beam and a receiving beam according to an embodiment of the application.
  • FIG. 10 and FIG. 11 are respectively schematic diagrams for obtaining the indication period and metric value of layer 1 according to an embodiment of the application;
  • FIG. 12, FIG. 15, FIG. 17, and FIG. 19 are respectively flowcharts of a method for evaluating wireless link quality according to an embodiment of the application;
  • FIG. 13, FIG. 16, FIG. 18, and FIG. 20 are respectively flowcharts of a beam quality evaluation method provided by an embodiment of this application;
  • FIG. 14 is a flowchart of a method for evaluating radio link quality or beam quality according to an embodiment of this application.
  • 21 is a schematic diagram of the composition of a communication device provided by an embodiment of the application.
  • FIG. 22 and FIG. 23 are respectively schematic diagrams of the hardware structure of a communication device according to an embodiment of the application.
  • 24 is a schematic diagram of the hardware structure of a terminal device provided by an embodiment of the application.
  • FIG. 25 is a schematic diagram of the hardware structure of a network device provided by an embodiment of the application.
  • words such as “first” and “second” are used to distinguish the same items or similar items with substantially the same function and effect. Those skilled in the art can understand that words such as “first” and “second” do not limit the quantity and order of execution, and words such as “first” and “second” do not limit the difference.
  • orthogonal frequency-division multiple access OFDMA for short
  • SC-FDMA single carrier frequency-division multiple access
  • system can be replaced with "network”.
  • the OFDMA system can implement wireless technologies such as evolved universal terrestrial radio access (E-UTRA) and ultra mobile broadband (UMB).
  • E-UTRA is an evolved version of the Universal Mobile Telecommunications System (UMTS).
  • the 3rd generation partnership project (3GPP) uses the new version of E-UTRA in long term evolution (LTE) and various versions based on LTE evolution.
  • the fifth-generation (5th-generation, 5G) communication system and the new radio (NR) communication system are next-generation communication systems under study.
  • the communication system may also be applicable to future-oriented communication technologies, all of which apply the technical solutions provided in the embodiments of the present application.
  • the method provided in the embodiments of this application can be applied to various business scenarios, for example, enhanced mobile broadband (eMBB) business scenarios, ultra-reliable and low latency communication (URLLC) business scenarios , Internet of Things (IoT) business scenarios, etc.
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliable and low latency communication
  • IoT Internet of Things
  • the method provided in the embodiments of the present application involves network equipment and terminal equipment.
  • FIG. 1 shows a schematic diagram of a communication system to which the technical solution provided in this application is applicable.
  • the communication system may include at least one network device (only one is shown in FIG. 1) and at least one terminal device (5 are shown in FIG. 1, which are terminal device 1 to terminal device 5).
  • One or more of the terminal device 1 to the terminal device 5 can communicate with the network device to transmit data.
  • the terminal device in the embodiment of the present application may be any terminal device that communicates with a network device.
  • the network device may be a device deployed in a radio access network (radio access network, RAN for short) to provide a wireless communication function for terminal devices, for example, it may be a base station.
  • the network equipment may be various forms of macro base stations, micro base stations (also called small stations), relay stations, access points (AP for short), etc., and may also include various forms of control nodes, such as network controllers.
  • the control node may be connected to multiple base stations and configure resources for multiple terminal devices covered by the multiple base stations.
  • the names of devices with base station functions may be different.
  • the global system for mobile communication (GSM) or code division multiple access (CDMA) network can be called base transceiver station (BTS), and broadband code It can be called a base station (NodeB) in wideband code division multiple access (WCDMA for short), and it can be called an evolved NodeB (evolved NodeB, eNB or eNodeB) in a 5G communication system or an NR communication system. It is called the next generation node base station (gNB for short), and this application does not limit the specific name of the base station.
  • the network equipment can also be the wireless controller in the cloud radio access network (CRAN) scenario, the network equipment in the future evolved public land mobile network (PLMN) network, transmission and reception Node (transmission and reception point, TRP for short), etc.
  • CRAN cloud radio access network
  • PLMN future evolved public land mobile network
  • TRP transmission and reception point
  • the gNB may include a centralized unit (centralized unit, CU for short) and a distributed unit (distributed unit, DU for short).
  • the gNB may also include an active antenna unit (AAU for short).
  • CU implements part of the functions of gNB, and DU implements part of the functions of gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (PDCP).
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of radio link control (radio link control, RLC), media access control (MAC), and physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or converted from the information of the PHY layer, in this architecture, high-level signaling, such as RRC layer signaling or PDCP layer signaling, can also be It is considered to be sent by DU, or sent by DU+AAU.
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in the RAN, or the CU can be divided into network devices in a core network (core network, CN for short), which is not limited here.
  • the terminal device is used to provide one or more of voice services and data connectivity services to users, and the terminal device is an entity on the user side that is used to receive signals, or send signals, or receive signals and send signals.
  • Terminal equipment can also be called user equipment (UE), terminal, access terminal, user unit, user station, mobile station, remote station, remote terminal, mobile equipment, user terminal, wireless communication equipment, user agent or User device.
  • UE user equipment
  • the terminal device can be a mobile station (MS), subscriber unit (subscriber unit), drone, IoT device, wireless local area networks (WLAN) station (ST), cellular Telephone (cellular phone), smart phone (smart phone), cordless phone, wireless data card, tablet computer, session initiation protocol (SIP) phone, wireless local loop (wireless local loop, WLL) station , Personal digital assistant (PDA) devices, laptop computers, machine type communication (MTC) terminal devices, handheld devices with wireless communication functions, computing devices or connected to Other processing equipment of wireless modem, vehicle-mounted equipment, wearable equipment (also called wearable smart equipment).
  • the terminal device may also be a terminal device in a next-generation communication system, for example, a terminal device in a 5G communication system or a terminal device in a future evolved PLMN, a terminal device in an NR communication system, and so on.
  • the wireless link refers to the air interface communication link between the terminal device and the network device.
  • high-frequency communication adopts analog beam technology, and performs weighting processing through a large-scale antenna array to concentrate the signal energy in a small range to form a beam-like signal (called analog beam, or beam for short). ) To increase the transmission distance.
  • the beam is a communication resource.
  • the beam can be a wide beam, or a narrow beam, or other types of beams.
  • the beam forming technology may be beamforming technology or other technical means.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, and a hybrid beamforming technology. Different beams can be considered as different resources.
  • the same information or different information can be sent through different beams.
  • multiple beams with the same or similar communication characteristics may be regarded as one beam.
  • the beam includes a transmitting beam and a receiving beam.
  • the transmit beam may refer to the distribution of signal strength formed in different directions in space after a signal is transmitted through the antenna
  • the receive beam may refer to the distribution of the antenna array to strengthen or weaken the reception of wireless signals in different directions in space.
  • the beam information can be indicated by the antenna port quasi colocation (quasi colocation, QCL for short) relationship.
  • the indication information (for example, downlink control information (DCI)) may indicate that one resource (or antenna port) has a QCL relationship with another resource (or antenna port) to indicate the two resources
  • DCI downlink control information
  • the corresponding beams (or antenna ports) have the same spatial characteristics and can be received by the same receiving beam.
  • the beam can be specifically represented by various signal identifiers in the protocol, such as the resource index of the channel state information reference signal (CSI-RS), and the synchronous signal broadcast channel block (synchronous signal/physical broadcast channel).
  • a block may be referred to as SS/PBCH block or SSB for short) index, sounding reference signal (SRS) resource index, and tracking reference signal (tracking reference signal, TRS) resource index.
  • the DRX mode is a mode in which the terminal device receives signals. The purpose is to reduce the power consumption of the terminal device.
  • the terminal device can decide whether to use the DRX mode to receive signals according to the configuration of the network.
  • a terminal device receives a signal in DRX mode, within a DRX cycle, the terminal device can receive data within the active time, and outside the active time, the terminal device will enter the sleep time. During the sleep time, the terminal device No data will be received.
  • the DRX cycle refers to the interval between the start times of two adjacent activation times, and can also be referred to as the length of the DRX cycle. Exemplarily, referring to Fig. 2, in both DRX cycle 1 and DRX cycle 2, the terminal device can only receive data within the active time.
  • Radio link monitoring radio link monitoring
  • the quality of the radio link between the terminal device and the network device may change from time to time due to the movement of the terminal device and the change of the environment.
  • terminal equipment needs to continuously monitor the quality of the wireless link. More precisely, it continuously monitors the block error ratio (BLER) of the physical downlink control channel (physical downlink control channel, PDCCH) that carries the downlink control information (DCI). This monitoring process is RLM.
  • BLER block error ratio
  • the terminal equipment does not really need to detect the PDCCH and count the BLER to monitor the BLER of the PDCCH, but to perform the radio link on the RS used for RLM indicated by some networks.
  • the quality metric obtains multiple metric values (also called quality metric values), and then estimates the BLER of the PDCCH based on the multiple metric values.
  • the metric value may be a metric value of the signal to interference plus noise ratio (SINR for short) of the wireless link.
  • SINR signal to interference plus noise ratio
  • the RS used for RLM may be called RLM-RS.
  • the RLM mechanism in NR specifically includes steps (1) to (4):
  • Step (1) The network device configures one or more RLM-RS for the terminal device.
  • the network device can configure one or more RLM-RSs for the terminal device through radio resource control (radio resource control, RRC for short) reconfiguration signaling.
  • the RLM-RS may be a synchronization signal block (synchronization signal block, referred to as SSB) or a channel state information reference signal (channel state information reference signal, referred to as CSI-RS).
  • Step (2) The physical layer (PHY layer for short) of the terminal device evaluates the current wireless link quality.
  • the PHY layer of the terminal device periodically evaluates the quality of the current wireless link.
  • the period is T.
  • the PHY layer may also be referred to as layer 1 (referred to as L1 for short). Therefore, this period may also be referred to as the L1 indication period of the RLM, and may also be referred to as the evaluation period of the radio link quality.
  • the specific implementation process of step (2) may include: an RLM-RS configured for the terminal device by the network, the network device will periodically send the RLM-RS, and the terminal device can receive one RLM-RS every time it receives one RLM-RS.
  • the one RLM-RS determines a metric value.
  • the PHY layer can obtain multiple metric values within a period of time (referred to as an evaluation interval) from the time of the evaluation.
  • the PHY layer combines the multiple metric values to obtain a single metric value (referred to as a combined value), and determines the evaluation result of the RLM-RS configured for the terminal device by the network according to the combined value.
  • the length of the evaluation interval used to determine whether the evaluation result is in sync (IS) is different from the evaluation interval used to determine whether the evaluation result is out-of-sync (OOS).
  • IS in sync
  • OOS out-of-sync
  • the evaluation result obtained from evaluation based on two evaluation intervals cannot be both IS and OOS. Therefore, for an RLM-RS, the final evaluation result is either IS or OOS.
  • a description of the evaluation interval can be found below. It is understandable that when the network configures multiple RLM-RSs for the terminal device, the terminal device can obtain an evaluation result for each RLM-RS.
  • the network configures RLM-RS1 and RLM-RS2 for the terminal device, and both RLM-RS1 and RLM-RS2 are SSB.
  • the terminal device can determine 10 metric values based on the RLM-RS1 received from the 1st to 10th times at the evaluation moment, determine whether the evaluation result is OOS according to the combined value obtained by combining the 10 metric values, and according to the 6th to 10th times received
  • the RLM-RS1 determines 5 metric values, and the combined value obtained by combining the 5 metric values determines whether the evaluation result is IS, and finally determines the evaluation result for RLM-RS1.
  • the terminal device can determine 10 metric values according to the RLM-RS2 received from the 5th to 14th times at the evaluation moment, and determine whether the evaluation result is OOS according to the combined value obtained by combining the 10 metric values, and according to the 10th to 14th times received
  • the RLM-RS2 determines 5 metric values, and the combined value obtained by combining the 5 metric values determines whether the evaluation result is IS, and finally determines the evaluation result for RLM-RS2.
  • the method by which the PHY layer combines the determined metric values in the evaluation interval depends on the specific implementation of the terminal device.
  • the process of determining the evaluation result according to the combined value of one RLM-RS may include: comparing the combined value with threshold values called Q in and Q out respectively. If the combined value is higher than Q in , the evaluation result of the RLM-RS is considered IS, and if the combined value is lower than Q out , the evaluation result of the RLM-RS is considered OOS. It should be noted that when the evaluation result of RLM-RS is IS, it indicates that the quality of the wireless link is good, and when the evaluation result of RLM-RS is OOS, it indicates that the quality of the wireless link is not good.
  • Q in and Q out each correspond to a PDCCH BLER value.
  • the PDCCH BLER values corresponding to Q in and Q out are defined as 2% and 10%, respectively. Since the larger the metric value, the smaller the BLER. Therefore, if the metric value is lower than Q out , it means that the PDCCH BLER is higher than 10%, and if the metric value is higher than Q in , the PDCCH BLER is lower than 2%.
  • the specific values of Q in and Q out are determined by the terminal equipment manufacturer according to its own device, algorithm level, and hypothetical PDCCH transmission parameters (hypothetical PDCCH transmission parameters) defined in the 3GPP protocol.
  • Step (3) The PHY layer of the terminal device reports the evaluation result to the RRC layer of the terminal device.
  • step (3) in an evaluation, if all RLM-RSs are judged to be out of synchronization, the PHY layer reports OOS to the RRC layer. If at least one RLM-RS is determined to be synchronous, the PHY layer reports the IS to the RRC layer.
  • the RRC layer may also be referred to as layer 3, and layer 3 may be referred to as L3 for short.
  • both RLM-RS1 and RLM-RS2 are determined to be OOS
  • the PHY layer reports OOS to the RRC layer at the evaluation time. If any one or more of RLM-RS1 and RLM-RS2 is determined to be IS, the PHY layer reports the IS to the RRC layer at the evaluation moment.
  • Step (4) the RRC layer statistical evaluation result of the terminal equipment.
  • step (4) the behavior of the RRC layer of the terminal device is divided into two stages (denoted as the first stage and the second stage), which will be introduced separately below.
  • the terminal device uses a counter called N310 to count the OOS reported by the PHY layer, and a counter called N311 to count the IS reported by the PHY layer.
  • the RRC layer counts the number of consecutive OOS or IS reported by the PHY layer.
  • the specific implementation can be as follows: Whenever the PHY layer reports an OOS, the RRC layer clears the N311 counter and increments the N310 counter; and whenever the PHY layer reports an IS, the RRC layer clears the N310 counter to zero and sets N311 The counter is incremented by 1. During this period, if the count of N310 exceeds the preset threshold, the RRC layer enters the second stage.
  • the terminal device After entering the second stage, the terminal device must start a timer called T310, and then still use the same method as the first stage to count OOS and IS. If the N311 count exceeds the preset threshold before the T310 timer expires, the terminal device considers that the wireless link quality has improved. At this time, the terminal device stops T310 and returns to the first stage to continue monitoring. If the N311 count does not exceed the preset threshold before the T310 timer expires, the terminal device considers that the wireless link quality is no longer possible to improve, and the terminal device reports to the network device that a radio link failure (radio link failure) has occurred. link failure, RLF for short), and then the terminal device performs radio link re-establishment (radio link re-establishment).
  • a radio link failure radio link failure
  • RLF radio link failure
  • the preset thresholds of N310 and N311 and the maximum timing of T310 may be configured by the network device to the terminal device through RRC reconfiguration signaling.
  • BFD The mechanism of BFD is similar to RLM. The only difference is that the purpose of BFD is to reflect changes in beam quality, not the overall link quality. Therefore, BFD monitors the BLER of the PDCCH carried on a certain beam. In addition, only OOS is counted in BFD, not IS. In addition, BFD does not involve the interaction between the PHY layer and the RRC layer, but the interaction between the PHY layer and the media access control (media access control, MAC for short) layer.
  • the MAC layer can also be referred to as layer 2, and layer 2 can be referred to as L2 for short.
  • the BFD mechanism specifically includes steps 1 to 4:
  • Step 1 The network device configures one or more RSs used for BFD for the terminal device.
  • the RSs used for BFD may be called BFD-RS.
  • the network device can configure one or more BFD-RSs for the terminal device through RRC reconfiguration signaling.
  • the BFD-RS can be SSB or CSI-RS.
  • Step 2 The PHY layer of the terminal device evaluates the quality of the current beam.
  • the PHY layer of the terminal device periodically evaluates the quality of the current beam.
  • the period is T.
  • This period may also be referred to as the layer 1 indication period of the BFD, and may also be referred to as the beam quality assessment period.
  • the specific implementation process of step 2 may include: for a BFD-RS configured for the terminal device by the network, the network device will periodically send the BFD-RS, and the terminal device can be based on the received BFD-RS every time the terminal device receives a BFD-RS.
  • a BFD-RS determines a metric value.
  • the PHY layer can obtain multiple metric values in a period of time (called the evaluation interval) from the time of evaluation.
  • the PHY layer combines the multiple metric values to obtain a single metric value (referred to as a combined value), and determines the evaluation result of the BFD-RS configured for the terminal device by the network according to the combined value.
  • a description of the evaluation interval can be found below. It is understandable that when the network configures multiple BFD-RS for the terminal device, the terminal device can obtain an evaluation result for each BFD-RS.
  • the network configures BFD-RS1 and BFD-RS2 for the terminal device, and both BFD-RS1 and BFD-RS2 are SSB.
  • the terminal device may determine 5 metric values according to the BFD-RS1 received from the 6th to 10th times at the evaluation moment, and determine whether the evaluation result is OOS according to the combined value obtained by combining the 5 metric values.
  • the terminal device may determine 5 metric values according to the BFD-RS2 received from the 10th to 14th times at the evaluation moment, and the combined value obtained by combining the 5 metric values determines whether the evaluation result is OOS.
  • the method by which the PHY layer combines the determined metric values in the evaluation interval depends on the specific implementation of the terminal device.
  • the process of determining the evaluation result according to the combined value of a BFD-RS may include: comparing the combined value with a threshold called Q out . If the combined value is lower than Q out , the evaluation result of the BFD-RS is considered to be OOS.
  • Q out a threshold
  • Step 3 The PHY layer of the terminal device reports the evaluation result to the MAC layer of the terminal device.
  • step 3 in an evaluation, if all BFD-RS are judged to be out of synchronization, the PHY layer reports OOS to the MAC layer.
  • Step 4 The MAC layer statistical evaluation result of the terminal device.
  • the terminal device uses a counter called a beam failure indication counter (BFI_counter) to count the OOS reported by the PHY layer. Specifically, when BFI_counter is 0, if the PHY layer reports OOS, the MAC layer increments BFI_counter by 1 and starts a BFD timer (called BFD_timer).
  • BFI_counter a beam failure indication counter
  • the terminal device If the PHY layer does not report a new OOS before the BFD_timer expires, the terminal device considers that the beam quality has improved, and should stop BFD_timer and clear BFI_counter.
  • the MAC layer If the MAC layer reports a new OOS before the BFD_timer times out, the MAC layer adds 1 to the BFI_counter and restarts the BFD_timer. If the BFI_counter exceeds the maximum threshold, the terminal device considers that the beam quality cannot be improved. At this time, the terminal device reports a beam failure to the network device and enters the candidate beam detection (candidate beam detection) beam reconstruction process.
  • the maximum threshold of BFI_counter and the maximum timing of BFD_timer may be configured by the network device to the terminal device through RRC reconfiguration signaling.
  • T DRX refers to the length of the DRX cycle
  • T RLM-RS refers to the transmission period of RLM-RS
  • T BFD-RS refers to the transmission period of BFD-RS
  • N is the receive beam weighting factor
  • P is the collision weighting factor. It is a weight to compensate the loss of measurement opportunity caused by the collision of the RLM-RS/BFD-RS with the measurement gap (MG) or the synchronization signal measurement timing configuration (SMTC) window of the same frequency measurement factor.
  • MG measurement gap
  • SMTC synchronization signal measurement timing configuration
  • FR frequency range
  • FR2 high frequency
  • the SMTC measured in the same frequency refers to the SMTC measured at the frequency point where the serving cell of the terminal device is located.
  • MG and SMTC are essentially time windows that appear periodically, and a time window can be referred to as a time range of MG and SMTC. See Figure 5 for details.
  • the collision between the RLM-RS/BFD-RS and the MG means that the time range of the MG includes the time occupied by at least one transmission of the RLM-RS/BFD-RS.
  • the complete collision of the RLM-RS/BFD-RS with the MG means that the time range of the MG includes the time occupied by each transmission of the RLM-RS/BFD-RS.
  • the situation of complete collision between RLM-RS/BFD-RS and MG can be seen in FIG. 5. Refer to Figure 6 for the collision between RLM-RS/BFD-RS and MG.
  • the collision between the RLM-RS/BFD-RS and the SMTC means that the time range of the SMTC includes the time occupied by at least one transmission of the RLM-RS/BFD-RS.
  • the complete collision of the RLM-RS/BFD-RS with the SMTC means that the time range of the MG includes the time occupied by each transmission of the RLM-RS/BFD-RS.
  • the collision situation between RLM-RS/BFD-RS and SMTC can be seen in FIG. 7 and FIG. 8.
  • RLM-RS/BFD-RS completely collide with MG means that the time range of MG completely includes the time domain range of RLM-RS/BFD-RS.
  • the terminal device only performs RLM/BFD measurement outside the MG.
  • the terminal equipment will perform the two time divisions according to the ratio of RLM/BFD and the same frequency measurement 1:2, that is, one of the three measurement opportunities is used for RLM/BFD, and the other measurement opportunities are used for the same frequency measurement, as shown in Figure 7. .
  • the terminal device only performs RLM/BFD outside the MG and SMTC, as shown in Figure 8.
  • the length of the evaluation interval depends on the time required to obtain a certain number of metric values.
  • the number of corresponding metric values can be seen in Table 2.
  • A1 is a fixed value, which is determined by the network configuration. For specific values, see Table 1.
  • A2 is the number of measurement values corresponding to the monitoring type and the RS type, which can be determined according to Table 2.
  • RS is used for RLM
  • RS is RLM-RS
  • T RS is T RLM-RS
  • RS is BFD-RS
  • T RS is T BFD-RS .
  • the evaluation interval is set to take The larger value between A1 and A1.
  • the terminal device should measure the RS within the DRX activation time.
  • the terminal device should measure the RS during the DRX activation time. In order to reduce the power consumption of the terminal device, assuming that the terminal device only obtains the measurement value once within an activation time, then The time to obtain a single metric is And T DRX is greater than T RS , therefore, Then the time required for the terminal device to obtain A2 measurement values is due to Not too small, so the evaluation interval is directly
  • the layer 1 indication period of RLM and BFD is shown in Table 4.
  • DRX configuration RLM layer 1 indication period (ms) BFD layer 1 indication period (ms) DRX is not configured max(10,T RLM-RS,min ) max(2,T BFD-RS,min ) T DRX ⁇ 320ms 1.5max(T DRX ,T RLM-RS,min ) 1.5max(T DRX ,T BFD-RS,min ) T DRX >320ms T DRX T DRX
  • T RLM-RS,min and T BFD-RS,min are respectively the minimum value of the RLM-RS period and the minimum value of the BFD-RS period configured to the terminal device.
  • the purpose of 3GPP’s formulation of the layer 1 indicator period is to ensure that the terminal device can obtain at least one new metric value in each layer 1 indicator period to make the layer 1 indicator period as short as possible, so as to reflect the wireless link more timely. Changes in the quality of the road or beam.
  • the principle of determining the value in the layer 1 indicator period is the same as the principle of determining the value in the evaluation interval, and will not be repeated here.
  • the RLM-RS/BFD-RS is located in FR2 in frequency in scenario 1, and the network does not configure the QCL relationship when configuring the RLM-RS/BFD-RS. Therefore, the terminal device cannot know the best receiving beam direction when performing RLM/BFD measurement, and multiple receiving beams must be used for beam scanning to receive RLM-RS/BFD-RS. Exemplarily, referring to FIG. 9, assuming that the terminal device performs beam scanning clockwise from the receiving beam 5, it takes 8 beam scanning to determine the best receiving beam direction (ie, the receiving direction of the receiving beam 4).
  • the OOS evaluation result will definitely be obtained in the next 7 indication cycles.
  • the terminal device reports OOS, it must report 8 OOS continuously. Only wait until the 8th indicator cycle evaluation result may change.
  • the problem is that the maximum value of BFI_counter configured by the network device is only 10, which leads to the fact that as long as the metric value obtained by the terminal device using the best receiving direction twice in a row is lower than Q out , beam failure/wireless link failure will definitely occur .
  • RLM Similar situation for RLM.
  • the terminal equipment uses multiple receiving beams for beam scanning to receive RLM-RS/BFD-RS and avoids collisions between RLM/BFD and mobility measurement.
  • the device cannot obtain at least one new effective metric value in each indicator period as the original design intention of the indicator period. Therefore, as long as it is ensured that the terminal device obtains at least one new effective metric value in each indication period, the problem can be avoided.
  • the embodiment of the present application proposes a method that can ensure that the terminal device obtains at least one new effective metric value in each indication period, thereby avoiding frequent occurrence of radio link failure/beam failure. Specifically, exemplified descriptions are given through the following embodiments.
  • Example 1 includes Example 1-1 and Example 1-2.
  • Embodiment 1-1 provides a wireless link quality evaluation method
  • embodiment 1-2 provides a beam quality evaluation method.
  • This embodiment provides a wireless link quality evaluation method, as shown in FIG. 12, including:
  • a terminal device receives configuration information from a network device, where the configuration information is used to configure at least one RLM-RS for the terminal device, and the RLM-RS is used for the terminal device to monitor the quality of a wireless link.
  • the network device may configure at least one RLM-RS for the terminal device through RRC signaling (for example, RRC reconfiguration signaling).
  • RRC signaling for example, RRC reconfiguration signaling.
  • Any one of the at least one RLM-RS may be SSB or CSI-RS.
  • the terminal device periodically evaluates the quality of the wireless link of the terminal device according to the RLM-RS.
  • step 1202 For the specific implementation of step 1202, refer to the description of step (2) of the RLM mechanism part above, and details are not repeated here. Step 1202 may also be implemented in other ways during specific implementation, and the above example does not constitute a limitation to the application.
  • the period (that is, the above-mentioned RLM layer 1 indication period, that is, the evaluation period of wireless link quality) is T milliseconds, T is determined according to the values of B1 and B2, B1 is a preset or preconfigured value, and B2 is based on N At least one of and P and the period of at least one RLM-RS are determined, N is the received beam weighting factor, N is a positive integer, P is the collision weighting factor, and P is the same as MG and MG in the time domain according to at least one RLM-RS.
  • the overlap of at least one of the SMTCs measured frequently is determined.
  • the value of N here is only an example. As application scenarios change or the network evolves, N may also be other values, which is not specifically limited in the embodiment of the present application.
  • the terminal device can obtain a new metric value in the layer 1 indication period and whether the new metric value is a valid metric value is not only related to the minimum period of RLM-RS and the DRX period of the terminal device, but also to N It is related to P, and the current cycle determination method does not consider the influence of N and/or P.
  • the value of N and/or P is taken into consideration when determining the layer 1 indication period, so that under the influence of N and/or P, the layer 1 indication period of the terminal device is more reasonable, thereby The probability that the terminal device obtains a valid metric value in the layer 1 indication period is improved, and frequent wireless link failures are avoided.
  • T max(B 1 , B 2 ).
  • B 1 10.
  • the value of B 1 here is only an example. As application scenarios change or the network evolves, B 1 may also be other values (for example, 12, 15, etc.), which is not specifically limited in the embodiment of the present application.
  • B 1 C 1 T DRX
  • the value of B 1 can be pre-configured (for example, DRX is configured
  • P 320.
  • the value of P here is only an example. As application scenarios change or the network evolves, P may also be other values (for example, 160ms, 240ms, etc.), which is not specifically limited in the embodiment of the present application.
  • B 1 T DRX
  • the value of B 1 can be pre-configured at this time (for example, if the length of the DRX cycle is configured, it means It is configured with B 1 ).
  • T DRX is the length of the DRX cycle of the terminal device
  • T RLM-RS,i is the transmission period of the i-th RLM-RS configured by the network device for the terminal device
  • N i is the reception corresponding to the i-th RLM-RS beam weighting factor
  • P i is the i th RLM-RS weighting factor corresponding to the collision.
  • max(B 1 , B 2 ) refers to the maximum value of B 1 and B 2 .
  • the meaning is: take The minimum value in. I is the number of RLM-RS configured by the network device for the terminal device.
  • the meanings of other similar formulas in the various embodiments are similar and will not be repeated.
  • the network device configures three RLM-RSs for the terminal device, namely RLM-RS1, RLM-RS2, and RLM-RS3.
  • the transmission period of RLM-RS1 is 2ms
  • N 1 corresponding to RLM-RS1 is 8, and P 1 is 3.
  • the transmission period of RLM-RS2 is 4ms
  • the corresponding N 2 is 1, and P 2 is 3.
  • T DRX 4ms.
  • T max(B 1 , B 2 ).
  • T max(B 1 , B 2 ).
  • T max(B 1 , B 2 ).
  • the terminal equipment uses multiple receiving beams for beam scanning to receive RLM-RS, and/or collisions between RLM-RS and MG or SMTC measured on the same frequency, resulting in the existing wireless link quality assessment It may not be possible to obtain a valid measurement value within the period.
  • the evaluation period of the terminal device when performing the wireless link quality evaluation becomes longer, for example, it becomes N times, P times or N*P times, thereby increasing the probability that the terminal device obtains at least one valid metric value in the evaluation period of the wireless link quality, and avoiding frequent wireless link failures.
  • the method further includes: for the i-th RLM-RS, the terminal device determines the weighting factors N i and P i corresponding to the RLM-RS according to its time-frequency position and the configuration of the MG and the SMTC measured in the same frequency.
  • the method for determining N and P can be found in section 8.1.2.2 of 3GPP TS38.133v15.5.0. It will not be repeated in other embodiments.
  • This embodiment provides a beam quality evaluation method, as shown in FIG. 13, including:
  • a terminal device receives configuration information from a network device, where the configuration information is used to configure at least one BFD-RS for the terminal device, and the BFD-RS is used for the terminal device to detect the quality of the beam.
  • the network device may configure at least one BFD-RS for the terminal device through RRC signaling (for example, RRC reconfiguration signaling).
  • RRC signaling for example, RRC reconfiguration signaling.
  • Any one of the at least one BFD-RS may be SSB or CSI-RS.
  • the terminal device periodically evaluates the beam quality of the terminal device according to the BFD-RS.
  • step 1302 For the specific implementation of step 1302, please refer to the description of step 2 of the BFD mechanism part above, which will not be repeated here. Step 1302 can also be implemented in other ways during specific implementation, and the above example does not constitute a limitation to the application.
  • the period (that is, the above-mentioned BFD layer 1 indication period, that is, the beam quality evaluation period) is T milliseconds, T is determined according to the values of B1 and B2, B1 is a preset or preconfigured value, and B2 is based on N and P At least one item in and the period of at least one BFD-RS are determined, N is the received beam weighting factor, N is a positive integer, P is the collision weighting factor, and P is measured in the time domain with the MG and the same frequency according to at least one BFD-RS The overlap of at least one of the SMTCs is determined.
  • the value of N here is only an example. As application scenarios change or the network evolves, N may also be other values, which are not specifically limited in the embodiment of the present application.
  • the terminal device can obtain a new metric value in the layer 1 indication period and whether the new metric value is a valid metric value is not only related to the minimum period of BFD-RS and the DRX period of the terminal device, but also to N It is related to P, and the current cycle determination method does not consider the influence of N and/or P.
  • the value of N and/or P is taken into consideration when determining the layer 1 indication period, so that under the influence of N and/or P, the layer 1 indication period of the terminal device is more reasonable, thereby The probability that the terminal device obtains a valid metric value within the layer 1 indication period is improved, and frequent beam failures are avoided, thereby avoiding frequent beam failures.
  • T max(B 1 , B 2 ).
  • B 1 2.
  • the value of B 1 here is only an example. As application scenarios change or the network evolves, B 1 may also be other values (for example, 4, 6, etc.), which is not specifically limited in the embodiment of the present application.
  • B 1 C 1 T DRX
  • P 320.
  • the value of P here is only an example. As application scenarios change or the network evolves, P may also be other values (for example, 160ms, 240ms, etc.), which is not specifically limited in the embodiment of the present application.
  • B 1 T DRX
  • the value of B 1 can be pre-configured at this time (for example, if the length of the DRX cycle is configured, it means It is configured with B 1 ).
  • T DRX is the length of the DRX cycle of the terminal device
  • T BFD-RS i is the transmission period of the i-th BFD-RS configured by the network device for the terminal device
  • N i is the reception corresponding to the i-th BFD-RS beam weighting factor
  • P i is the i th BFD-RS weighting factor corresponding to the collision.
  • the terminal equipment uses multiple receiving beams for beam scanning to receive BFD-RS, and/or collisions between BFD-RS and MG or SMTC measured at the same frequency, resulting in the existing beam quality assessment period It may not be possible to obtain a valid measurement value.
  • This optional method by considering N and P, makes the evaluation cycle of the terminal device's beam quality evaluation longer, for example, it becomes N times, P times or N*P times the original, thereby improving the beam quality of the terminal equipment The probability of obtaining at least one valid metric value within the evaluation period of the, avoiding frequent beam failures.
  • the method further includes: for the i-th BFD-RS, the terminal device determines the weighting factors N i and P i corresponding to the BFD-RS according to its time-frequency position and the configuration of the MG and the SMTC measured in the same frequency.
  • the method for determining N and P can be found in section 8.1.3.2 of 3GPP TS38.133 v15.5.0. It will not be repeated in other embodiments.
  • This embodiment provides a wireless link quality or beam quality evaluation method, as shown in FIG. 14, including:
  • a network device sends configuration information to a terminal device.
  • the terminal device receives configuration information from the network device.
  • the configuration information is used to configure the first RS and the QCL relationship between the first RS and other RSs for the terminal device.
  • the first RS is used for the terminal equipment to monitor the quality of the radio link or beam.
  • the first RS is located at a low frequency (ie FR1) in frequency
  • the first RS does not overlap with the MG in the time domain.
  • the RS is located at a high frequency (ie FR2) in frequency
  • the first RS does not overlap with the MG and the SMTC measured at the same frequency in the time domain.
  • N 1 when the first RS does not overlap with the MG in the time domain.
  • P 1 when the first RS does not overlap with the MG and the SMTC measured at the same frequency in the time domain.
  • the terminal device evaluates the quality of the wireless link or beam of the terminal device according to the first RS and the QCL relationship between the first RS and other RSs.
  • the terminal device can determine the best receiving beam direction according to the QCL relationship between the first RS and other RSs. After that, the method for the terminal device to evaluate the quality of the wireless link or beam can refer to the description of the RLM mechanism or the BFD mechanism part above, which will not be repeated here.
  • the method further includes: the network device sends the first RS to the terminal device based on the configuration information.
  • the terminal device receives the first RS from the network device.
  • the third embodiment includes the embodiment 3-1 and the embodiment 3-2.
  • Embodiment 3-1 provides a wireless link quality evaluation method.
  • Embodiment 3-2 provides a beam quality evaluation method.
  • This embodiment provides a wireless link quality assessment method, as shown in FIG. 15, including:
  • a terminal device receives configuration information from a network device, where the configuration information is used to configure the terminal device with a first threshold value of a first counter, a first threshold value of a second counter, and a first threshold value of a timer.
  • the first counter is used to count the evaluation results that are out of step.
  • the evaluation result being out of synchronization means that the BLERs corresponding to the wireless links estimated by the terminal device on all RLM-RSs configured by the network device are higher than the first threshold.
  • the evaluation result being out of synchronization means that the combined value determined by the terminal device on all RLM-RSs configured by the network device (see above for specific meaning) is lower than Q out (see above for specific meaning).
  • the first counter may be the above-mentioned N310 counter.
  • the first threshold may be preset or configured by a network device. For example, the first threshold may be 10%.
  • the second counter is used to count the evaluation results whose evaluation results are synchronized.
  • the evaluation result of synchronization means that the BLER corresponding to the radio link estimated by the terminal device on at least one of all RLM-RSs configured by the network device is lower than the second threshold, and the second threshold is smaller than the first threshold.
  • the evaluation result is synchronization means that the combined value determined by the terminal device on at least one RLM-RS of all RLM-RSs configured by the network device (see above for specific meaning) is higher than Q in (see above for specific meaning) .
  • the second counter may be the aforementioned N311 counter.
  • the second threshold may be preset or configured by the network device. For example, the second threshold may be 2%.
  • the first threshold of the timer is the waiting period for confirming that the quality of the wireless link cannot be improved.
  • the first threshold value of the timer is the deadline for the terminal device to determine whether a wireless link failure occurs.
  • RLM-RS is used for terminal equipment to monitor the quality of wireless links.
  • the terminal device determines the second threshold of the first counter according to the first threshold of the first counter, T, and at least one of N and P, and according to the first threshold of the second counter, T, and At least one of N and P determines the second threshold of the second counter, and determines the second threshold of the timer according to the first threshold of the timer, T, and at least one of N and P.
  • the first The second threshold of the counter, the second threshold of the second counter, and the second threshold of the timer are the thresholds used by the terminal device (specifically, the RRC layer of the terminal device) to monitor the quality of the radio link. Limit value (that is, the first threshold value is configured by the network device, and the second threshold value is the actually used threshold value).
  • T is the evaluation period for the terminal equipment to perform the radio link quality (that is, the above-mentioned RLM layer 1 indication period)
  • N is the received beam weighting factor
  • N is a positive integer
  • P is the collision weighting factor
  • P is based on all RLM-RS
  • the value of N here is only an example. As application scenarios change or the network evolves, N may also be other values, which are not specifically limited in the embodiment of the present application.
  • the second threshold of the first counter is k times the first threshold of the first counter
  • the second threshold of the second counter is k times the first threshold of the second counter
  • the second threshold of the timer is k times the first threshold of the timer
  • T RLM-RS,i is the transmission period of the i-th RLM-RS configured by the network device for the terminal device
  • N i is the receive beam weighting factor corresponding to the i-th RLM-RS
  • P i is the i-th RLM -Collision weighting factor corresponding to RS.
  • the k corresponding to any two of the first counter, the second counter and the timer may be the same or different.
  • the method further includes: for the i-th RLM-RS, the terminal device determines the weighting factors N i and P i corresponding to the RLM-RS according to its time-frequency position and the configuration of the MG and the SMTC measured in the same frequency.
  • the method for determining N and P can be found in section 8.1.2.2 of 3GPP TS38.133 v15.5.0. It will not be repeated in other embodiments.
  • the terminal device improves the first The upper limit of the counter, the second counter and the timer avoids unreasonable wireless link failure.
  • This embodiment provides a beam quality evaluation method, as shown in FIG. 16, including:
  • a terminal device receives configuration information from a network device, where the configuration information is used to configure a first threshold value of a counter and a first threshold value of a timer for the terminal device.
  • the counter is used to count the evaluation results for which the evaluation result is out of synchronization.
  • the evaluation result of out of synchronization means that the BLERs corresponding to the beams estimated by the terminal device on all BFD-RS configured by the network device are higher than the first threshold.
  • the evaluation result being out of synchronization means that the combined value determined by the terminal device on all BFD-RSs configured by the network device (see above for specific meaning) is lower than Q out (see above for specific meaning).
  • the counter can be the aforementioned BFI_counter.
  • the first threshold may be preset or configured by a network device. For example, the first threshold may be 10%.
  • the first threshold value of the timer is the waiting period required to confirm the quality improvement of the beam.
  • the timer can be BFD_timer.
  • BFD-RS is used for terminal equipment to detect the quality of the beam.
  • the terminal device determines the second threshold value of the counter according to the first threshold value of the counter, T, and at least one of N and P, and determines the second threshold value of the counter according to the first threshold value of the timer, T, and N and P. At least one determines the second threshold value of the timer, the second threshold value of the counter and the second threshold value of the timer are the gates used by the terminal device (specifically, the MAC layer of the terminal device) for beam quality detection Limit value (that is, the first threshold value is configured by the network device, and the second threshold value is the actually used threshold value).
  • T is the evaluation period of the beam quality of the terminal equipment (that is, the above-mentioned BFD layer 1 indication period)
  • N is the received beam weighting factor
  • N is a positive integer
  • P is the collision weighting factor
  • P is based on all BFD-RS in the time domain
  • the value of N here is only an example. As application scenarios change or the network evolves, N may also be other values, which are not specifically limited in the embodiment of the present application.
  • the second threshold value of the counter is k times the first threshold value of the counter
  • the second threshold value of the timer is k times the first threshold value of the timer
  • T BFD-RS,i is the transmission period of the i-th BFD-RS configured by the network device for the terminal device
  • N i is the receive beam weighting factor corresponding to the i-th BFD-RS
  • P i is the i-th BFD -Collision weighting factor corresponding to RS.
  • the k corresponding to the counter and the timer may be the same or different.
  • the method further includes: for the i-th BFD-RS, the terminal device determines the weighting factors N i and P i corresponding to the BFD-RS according to its time-frequency position and the configuration of the MG and the SMTC measured in the same frequency.
  • the method for determining N and P can be found in section 8.1.3.2 of 3GPP TS38.133 v15.5.0. It will not be repeated in other embodiments.
  • Embodiment 3-2 offsets the effect of not being able to collect a valid metric value within a layer 1 indicator period by increasing the upper limit of the counter and timer. Without modifying the definition and configuration of the existing layer 1 indication period in the protocol, and the configuration of the existing counter and timer, through the technical solution of this embodiment, the terminal device increases the upper limit of the counter and timer to avoid Unreasonable beam failure.
  • the fourth embodiment includes the embodiment 4-1 and the embodiment 4-2.
  • Embodiment 4-1 provides a wireless link quality evaluation method
  • Embodiment 4-2 provides a beam quality evaluation method.
  • This embodiment provides a wireless link quality evaluation method, as shown in FIG. 17, including:
  • the network device determines the threshold values of the first counter, the second counter, and the timer according to at least one of N and P.
  • the network device may determine N (or P or N*P) times the thresholds of the existing first counter, second counter, and timer, respectively, as the first counter, The threshold of the second counter and timer.
  • the network device may also use other methods to determine the threshold values of the first counter, the second counter, and the timer according to at least one of N and P.
  • N is the received beam weighting factor
  • N is a positive integer
  • P is the collision weighting factor
  • P is determined based on the overlap of all RLM-RSs in the time domain with at least one of the MG and the SMTC measured on the same frequency.
  • the value of N here is only an example. As application scenarios change or the network evolves, N may also be other values, which are not specifically limited in the embodiment of the present application.
  • the first counter is used to count the evaluation results of out-of-synchronization.
  • the evaluation result is out-of-synchronization. It means that the BLER of the wireless link estimated by the terminal device on all RLM-RSs configured by the network device is higher than the first Threshold. Or, the evaluation result being out of synchronization means that the combined value determined by the terminal device on all RLM-RSs configured by the network device (see above for specific meaning) is lower than Q out (see above for specific meaning).
  • the first counter may be the above-mentioned N310 counter.
  • the first threshold may be preset or configured by a network device. For example, the first threshold may be 10%.
  • the second counter is used to count the evaluation results for which the evaluation result is synchronized.
  • the evaluation result of synchronization refers to the BLER corresponding to the radio link estimated by the terminal device on at least one of all RLM-RSs configured by the network device. Below the second threshold, the second threshold is less than the first threshold. Or, the evaluation result is synchronization means that the combined value determined by the terminal device on at least one RLM-RS of all RLM-RS configured by the network device (see above for specific meaning) is higher than Q in (see above for specific meaning) .
  • the second counter may be the aforementioned N311 counter.
  • the second threshold may be preset or configured by the network device. For example, the second threshold may be 2%.
  • RLM-RS is used for terminal equipment to monitor the quality of wireless links.
  • the threshold of the timer is a waiting period for confirming that the quality of the wireless link cannot be improved.
  • the threshold of the timer is the deadline for the terminal device to determine whether a wireless link failure occurs.
  • the network device sends configuration information to the terminal device, where the configuration information is used to configure the terminal device with thresholds of the first counter, the second counter, and the timer.
  • the terminal device receives configuration information from the network device.
  • the terminal device may determine the threshold values of the first counter, the second counter, and the timer according to the configuration information.
  • the terminal device determines according to the configuration information that the threshold values of the first counter, the second counter, and the timer are 480, 240, and 144 seconds, respectively.
  • the terminal device (specifically, the RRC layer of the terminal device) monitors the quality of the wireless link according to the threshold values of the first counter, the second counter, and the timer.
  • step 1703 For the specific implementation of step 1703, reference may be made to the relevant description of step (4) in the RLM mechanism section above, and details are not repeated here.
  • the threshold of the first counter is less than or equal to 960
  • the threshold of the second counter is less than or equal to 480
  • the threshold of the timer is less than or equal to 288 seconds.
  • the upper limit of the first counter, the second counter, and the timer is increased, and the effect of not being able to collect a valid metric value in a layer 1 indicator period is offset.
  • This embodiment provides a beam quality evaluation method, as shown in FIG. 18, including:
  • the network device determines the thresholds of counters and timers according to N and P.
  • the network device may determine the threshold values of the counters and timers in this application by N (or P or N*P) times the thresholds of the existing counters and timers, respectively.
  • the network device may also adopt other methods to determine the threshold value of the counter and the timer according to at least one of N and P.
  • N is the received beam weighting factor
  • N is a positive integer
  • P is the collision weighting factor
  • P is determined based on the overlap of all BFD-RSs in the time domain with at least one of the MG and the SMTC measured on the same frequency.
  • the value of N here is only an example. As application scenarios change or the network evolves, N may also be other values, which are not specifically limited in the embodiment of the present application.
  • the counter is used to count the evaluation results for which the evaluation result is out of synchronization.
  • the evaluation result of out of synchronization means that the BLER corresponding to the beams estimated by the terminal device on all BFD-RS configured by the network device is higher than the first threshold.
  • the evaluation result being out of synchronization means that the combined value determined by the terminal device on all BFD-RSs configured by the network device (see above for specific meaning) is lower than Q out (see above for specific meaning).
  • the counter can be the aforementioned BFI_counter.
  • the first threshold may be preset or configured by a network device. For example, the first threshold may be 10%.
  • BFD-RS is used for terminal equipment to detect the quality of the beam.
  • the threshold of the timer is the waiting period required to confirm the quality improvement of the beam.
  • the timer can be BFD_timer.
  • the network device sends configuration information to the terminal device, where the configuration information is used to configure the threshold of the counter timer for the terminal device.
  • the terminal device receives configuration information from the network device.
  • the terminal device can determine the threshold of the counter timer according to the configuration information.
  • T is the evaluation period of the beam quality of the terminal device (that is, the above-mentioned BFD layer 1 indication cycle). Then the terminal device determines the threshold value of the counter and the timer to be 240 and 240 T respectively according to the configuration information.
  • the terminal device (specifically, the MAC layer of the terminal device) detects the quality of the beam according to the threshold value of the counter and the timer.
  • step 1803 For the specific implementation of step 1803, reference may be made to the related description of step 4 in the BFD mechanism section above, and details are not described herein again.
  • the threshold of the counter is less than or equal to 480, and the threshold of the timer is less than or equal to 480 T.
  • Embodiment 4-2 by increasing the upper limit of the counter and timer, offsets the effect of not being able to collect a valid metric value in a layer 1 indication period.
  • the fifth embodiment includes the embodiment 5-1 and the embodiment 5-2.
  • Embodiment 5-1 provides a method for evaluating radio link quality
  • embodiment 5-2 provides a method for evaluating beam quality.
  • This embodiment provides a wireless link quality evaluation method, as shown in FIG. 19, including:
  • the terminal device obtains the instruction information or the evaluation result.
  • the indication information or the evaluation result is obtained by the higher layer of the terminal device (for example, the RRC layer) receiving the indication information from the physical layer of the terminal device.
  • the higher layer of the terminal device for example, the RRC layer
  • the indication information is used to indicate that the terminal device does not obtain a valid metric value in the evaluation interval for evaluating the quality of the wireless link.
  • the valid metric value refers to the metric value obtained by the terminal device using the receiving beam with the best receiving direction to measure the RLM-RS , RLM-RS is used for terminal equipment to monitor the quality of the wireless link, and the evaluation result is the result of the terminal equipment evaluating the quality of the wireless link according to the metric value obtained in the evaluation interval for evaluating the quality of the wireless link.
  • the terminal device evaluates the metric value of each RLM-RS collected in an evaluation interval from the time of evaluation onwards in each layer 1 indication period. If the terminal device collects a valid metric value in the evaluation interval, it reports the corresponding evaluation result according to the agreement, and if no valid metric value is collected in the evaluation interval, the terminal device reports instruction information.
  • the indication information can be carried in a new report type (for example, NNS (no new sample)).
  • step 1902 If the terminal device receives the instruction information, step 1902 is executed. If the terminal device receives the evaluation result or does not receive any information, step 1903 is executed.
  • the terminal device suspends the timing of the timer, the timer corresponds to a threshold, and the threshold of the timer is a waiting period for confirming that the quality of the wireless link cannot be improved. At this time, the terminal device does not perform any operations on the N310 and N311 counters.
  • the terminal device starts the timing of the timer.
  • the terminal device subsequently performs corresponding operations on the N310, N311, and T310 timers according to the existing RLM process of the agreement.
  • the terminal device when the terminal device receives the indication information, it pauses the timer and waits until the evaluation result is received and then starts again, which can exclude the layer 1 indication period for which no valid metric value has been collected. This allows only the reported results containing valid metric values to be considered in the RLM process, thereby avoiding unreasonable wireless link failures.
  • This embodiment provides a beam quality assessment method, as shown in FIG. 20, including:
  • the terminal equipment obtained the instruction information or the evaluation result.
  • the indication information or evaluation result is obtained by the higher layer (for example, MAC layer) of the terminal device receiving the indication information from the physical layer of the terminal device.
  • the higher layer for example, MAC layer
  • the indication information is used to indicate that the terminal device does not obtain a valid metric value in the evaluation interval for evaluating the beam quality.
  • the valid metric value refers to the metric value obtained by the terminal device using the receiving beam with the best receiving direction to measure the BFD-RS, BFD -RS is used for the terminal equipment to monitor the beam quality, and the evaluation result is the result of the terminal equipment evaluating the beam quality according to the metric value obtained in the evaluation interval for evaluating the beam quality.
  • the terminal device evaluates the metric value of each BFD-RS collected in an evaluation interval from the time of evaluation onwards in each layer 1 indication period. If the terminal device collects a valid metric value in the evaluation interval, it reports the corresponding evaluation result according to the agreement, and if no valid metric value is collected in the evaluation interval, the terminal device reports instruction information.
  • the indication information can be carried in a new report type (for example, NNS).
  • step 2002 If the terminal device receives the instruction information, step 2002 is executed. If the terminal device receives the evaluation result or does not receive any information, step 2003 is executed.
  • the terminal equipment suspends the timing of the timer, the timer corresponds to a threshold, and the threshold corresponding to the timer is the waiting period required to confirm the quality improvement of the beam.
  • the terminal device does not do any operation on the BFI_counter.
  • the terminal device When the timer is suspended, the terminal device starts the timer. The terminal device subsequently performs corresponding operations on BFI_counter and BFD timer according to the existing BFD procedure of the agreement.
  • the terminal device when the terminal device receives the indication information, it pauses the timer and waits to start when the evaluation result is received, which can exclude the layer 1 indication period for which no valid metric value has been collected. This allows only the reported results containing valid metric values to be considered in the BFD process, thereby avoiding unreasonable beam failures.
  • each network element for example, a network device and a terminal device, includes hardware structures and/or software modules corresponding to each function in order to implement the above-mentioned functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the network device and the terminal device into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 21 shows a possible structural schematic diagram of the communication device (denoted as the communication device 210) involved in the above embodiment.
  • the communication device 210 includes a processing unit 2101 and a communication unit 2102. , May also include a storage unit 2103.
  • the schematic structural diagram shown in FIG. 21 can be used to illustrate the above wireless link quality assessment device, beam quality assessment device, and wireless link quality or beam quality assessment device, and can be specifically used to illustrate the network equipment involved in the above embodiment And the structure of the terminal equipment.
  • the processing unit 2101 is used to control and manage the actions of the network device.
  • the processing unit 2101 is used to support the network device to execute the diagram. 1201 in 12, 1301 in Figure 13, 1401 in Figure 14, 1501 in Figure 15, 1601 in Figure 16, 1701 and 1702 in Figure 17, 1801 and 1802 in Figure 18, and/or this application Actions performed by the network device in other processes described in the embodiment.
  • the processing unit 2101 may communicate with other network entities through the communication unit 2102, for example, communication with the terminal device shown in FIG. 12.
  • the storage unit 2103 is used to store the program code and data of the network device.
  • the communication apparatus 210 may be a network device or a chip in the network device.
  • the processing unit 2101 is used to control and manage the actions of the terminal device.
  • the processing unit 2101 is used to support the terminal device to execute the diagram. 1201 and 1202 in 12, 1301 and 1302 in Figure 13, 1401 and 1402 in Figure 14, 1501 and 1502 in Figure 15, 1601 and 1602 in Figure 16, 1702 and 1703 in Figure 17, in Figure 18 1802 and 1803, 1901 to 1903 in FIG. 19, 2001 to 2003 in FIG. 20, and/or actions performed by the terminal device in other processes described in the embodiments of this application.
  • the processing unit 2101 may communicate with other network entities through the communication unit 2102, for example, communication with the network device shown in FIG. 12.
  • the storage unit 2103 is used to store the program code and data of the terminal device.
  • the communication device 210 may be a terminal device or a chip in the terminal device.
  • the processing unit 2101 may be a processor or a controller, and the communication unit 2102 may be a communication interface, a transceiver, a transceiver, a transceiver circuit, a transceiver, and the like.
  • the communication interface is a general term and may include one or more interfaces.
  • the storage unit 2103 may be a memory.
  • the processing unit 2101 may be a processor or a controller, and the communication unit 2102 may be an input/output interface, a pin, or a circuit.
  • the storage unit 2103 may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in a terminal device or a network device. .
  • the communication unit may also be referred to as a transceiver unit.
  • the antenna and control circuit with the transceiver function in the communication device 210 can be regarded as the communication unit 2102 of the communication device 210, and the processor with the processing function can be regarded as the processing unit 2101 of the communication device 210.
  • the device for implementing the receiving function in the communication unit 2102 may be regarded as a receiving unit, which is used to perform the receiving steps in the embodiment of the present application, and the receiving unit may be a receiver, a receiver, a receiving circuit, and the like.
  • the device for implementing the sending function in the communication unit 2102 can be regarded as a sending unit, the sending unit is used to perform the sending steps in the embodiment of the present application, and the sending unit can be a transmitter, a transmitter, a sending circuit, and the like.
  • the integrated unit in FIG. 21 is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the medium includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • Storage media for storing computer software products include: U disk, mobile hard disk, read-only memory (read-only memory, ROM for short), random access memory (RAM for short), magnetic disks or optical disks, etc.
  • the medium of the program code include: U disk, mobile hard disk, read-only memory (read-only memory, ROM for short), random access memory (RAM for short), magnetic disks or optical disks, etc.
  • the unit in FIG. 21 may also be called a module, for example, the processing unit may be called a processing module.
  • the embodiment of the present application also provides a schematic diagram of the hardware structure of a communication device (denoted as the communication device 220). See FIG. 22 or FIG. 23.
  • the communication device 220 includes a processor 2201, and optionally, also includes a connection with the processor 2201. ⁇ Memory 2202.
  • the processor 2201 may be a general-purpose central processing unit (central processing unit, CPU for short), a microprocessor, an application-specific integrated circuit (ASIC for short), or one or more programs used to control this application Implementation of integrated circuits.
  • the processor 2201 may also include multiple CPUs, and the processor 2201 may be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, or processing cores for processing data (for example, computer program instructions).
  • the memory 2202 can be ROM or other types of static storage devices that can store static information and instructions, RAM, or other types of dynamic storage devices that can store information and instructions, or it can be an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory).
  • read-only memory EEPROM for short
  • compact disc read-only memory CD-ROM for short
  • optical disc storage including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.
  • the embodiments of this application do not impose any limitation on this.
  • the memory 2202 may exist independently or may be integrated with the processor 2201. Wherein, the memory 2202 may contain computer program code.
  • the processor 2201 is configured to execute the computer program code stored in the memory 2202, so as to implement the method provided in the embodiment of the present application.
  • the communication device 220 further includes a transceiver 2203.
  • the processor 2201, the memory 2202, and the transceiver 2203 are connected by a bus.
  • the transceiver 2203 is used to communicate with other devices or a communication network.
  • the transceiver 2203 may include a transmitter and a receiver.
  • the device used to implement the receiving function in the transceiver 2203 can be regarded as a receiver, and the receiver is used to perform the receiving steps in the embodiment of the present application.
  • the device used for implementing the sending function in the transceiver 2203 can be regarded as a transmitter, and the transmitter is used to perform the sending steps in the embodiment of the present application.
  • the schematic structural diagram shown in FIG. 22 may be used to illustrate the structure of the network device or terminal device involved in the foregoing embodiment.
  • the processor 2201 is used to control and manage the actions of the network device.
  • the processor 2201 is used to support the network device to execute the diagram. 1201 in 12, 1301 in Figure 13, 1401 in Figure 14, 1501 in Figure 15, 1601 in Figure 16, 1701 and 1702 in Figure 17, 1801 and 1802 in Figure 18, and/or this application Actions performed by the network device in other processes described in the embodiment.
  • the processor 2201 may communicate with other network entities through the transceiver 2203, for example, with the terminal device shown in FIG. 12.
  • the memory 2202 is used to store program codes and data of the network device.
  • the processor 2201 is used to control and manage the actions of the terminal device.
  • the processor 2201 is used to support the terminal device to execute the diagram. 1201 and 1202 in 12, 1301 and 1302 in Figure 13, 1401 and 1402 in Figure 14, 1501 and 1502 in Figure 15, 1601 and 1602 in Figure 16, 1702 and 1703 in Figure 17, in Figure 18 1802 and 1803, 1901 to 1903 in FIG. 19, 2001 to 2003 in FIG.
  • the processor 2201 may communicate with other network entities through the transceiver 2203, for example, the communication with the network device shown in FIG. 12.
  • the memory 2202 is used to store program codes and data of the terminal device.
  • the processor 2201 includes a logic circuit and an input interface and/or an output interface. Among them, the output interface is used to execute the sending action in the corresponding method, and the input interface is used to execute the receiving action in the corresponding method.
  • FIG. 23 The schematic structural diagram shown in FIG. 23 may be used to illustrate the structure of the network device or the terminal device involved in the foregoing embodiment.
  • the processor 2201 is used to control and manage the actions of the network device.
  • the processor 2201 is used to support the network device to execute the diagram. 1201 in 12, 1301 in Figure 13, 1401 in Figure 14, 1501 in Figure 15, 1601 in Figure 16, 1701 and 1702 in Figure 17, 1801 and 1802 in Figure 18, and/or this application Actions performed by the network device in other processes described in the embodiment.
  • the processor 2201 may communicate with other network entities through an input interface and/or an output interface, for example, communication with the terminal device shown in FIG. 12.
  • the memory 2202 is used to store program codes and data of the network device.
  • the processor 2201 is used to control and manage the actions of the terminal device.
  • the processor 2201 is used to support the terminal device to execute the diagram. 1201 and 1202 in 12, 1301 and 1302 in Figure 13, 1401 and 1402 in Figure 14, 1501 and 1502 in Figure 15, 1601 and 1602 in Figure 16, 1702 and 1703 in Figure 17, in Figure 18 1802 and 1803, 1901 to 1903 in FIG. 19, 2001 to 2003 in FIG.
  • the processor 2201 may communicate with other network entities through an input interface and/or an output interface, for example, communication with the network device shown in FIG. 12.
  • the memory 2202 is used to store program codes and data of the terminal device.
  • the embodiment of the present application also provides a schematic diagram of the hardware structure of a terminal device (denoted as a terminal device 240) and a network device (denoted as a network device 250). For details, refer to FIG. 24 and FIG. 25, respectively.
  • FIG. 24 is a schematic diagram of the hardware structure of the terminal device 240. For ease of description, FIG. 24 only shows the main components of the terminal device. As shown in FIG. 24, the terminal device 240 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the entire terminal device, execute the software program, and process the data of the software program, for example, to control the terminal device to execute 1201 and 1202 in Figure 12, Figure 13 1301 and 1302 in Figure 14, 1401 and 1402 in Figure 14, 1501 and 1502 in Figure 15, 1601 and 1602 in Figure 16, 1702 and 1703 in Figure 17, 1802 and 1803 in Figure 18, and in Figure 19 1901 to 1903, 2001 to 2003 in FIG. 20, and/or actions performed by the terminal device in other processes described in the embodiments of this application.
  • the memory is mainly used to store software programs and data.
  • the control circuit also called a radio frequency circuit
  • the control circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the control circuit in the control circuit.
  • the control circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. send.
  • the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 24 only shows a memory and a processor. In actual terminal devices, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processing unit is mainly used to control the entire terminal device and execute Software program, processing the data of the software program.
  • the processor in FIG. 24 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors and are interconnected by technologies such as buses.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data can be built in the processor, or can be stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • FIG. 25 is a schematic diagram of the hardware structure of the network device 250.
  • the network device 250 may include one or more radio frequency units, such as a remote radio unit (RRU) 2501 and one or more baseband units (BBU) (also known as digital units). , Referred to as DU)) 2502.
  • RRU remote radio unit
  • BBU baseband units
  • DU digital units
  • the RRU 2501 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 2511 and a radio frequency unit 2512.
  • the RRU2501 part is mainly used for the transceiver of radio frequency signals and the conversion of radio frequency signals and baseband signals.
  • the RRU 2501 and the BBU 2502 may be physically set together or separately, for example, a distributed base station.
  • the BBU2502 is the control center of the network equipment, which can also be called the processing unit, which is mainly used to complete the baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum and so on.
  • the BBU 2502 may be composed of one or more single boards, and multiple single boards may jointly support a single access indication wireless access network (such as an LTE network), or may respectively support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other networks).
  • the BBU 2502 also includes a memory 2521 and a processor 2522, and the memory 2521 is used to store necessary instructions and data.
  • the processor 2522 is used to control the network device to perform necessary actions.
  • the memory 2521 and the processor 2522 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the network device 250 shown in Figure 25 can execute 1201 in Figure 12, 1301 in Figure 13, 1401 in Figure 14, 1501 in Figure 15, 1601 in Figure 16, 1701 and 1702 in Figure 17 , 1801 and 1802 in FIG. 18, and/or actions performed by the network device in other processes described in the embodiments of this application.
  • the operation and/or function of each module in the network device 250 are respectively set to implement the corresponding process in the foregoing method embodiment.
  • each step in the method provided in this embodiment can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • FIG. 24 and FIG. 25 refer to the description about the processor in FIG. 22 and FIG. 23, and details are not repeated here.
  • the embodiments of the present application also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute any of the above-mentioned methods.
  • the embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to execute any of the above methods.
  • the embodiment of the present application also provides a communication system, including: the above-mentioned network device and terminal device.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • a software program it may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • Computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions may be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (digital subscriber line, referred to as DSL)) or wireless (such as infrared, wireless, microwave, etc.) transmission to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or may include one or more data storage devices such as a server or a data center that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

La présente invention concerne un procédé et un dispositif d'évaluation de qualité de liaison radio ou de qualité de faisceau ; dans le procédé, un dispositif terminal détermine, en fonction d'informations de configuration reçues en provenance d'un dispositif de réseau, un signal de référence pour la surveillance de la qualité d'une liaison radio ou d'un faisceau, et évalue périodiquement la qualité de la liaison radio ou du faisceau du dispositif terminal en fonction du signal de référence. La période décrite est déterminée en fonction des valeurs de B1 et de B2, B1 représentant une valeur prédéfinie ou préconfigurée, et B2 étant associée à un facteur de pondération de faisceau reçu (N) et à un facteur de pondération de collision (P). Comme l'obtention d'une valeur de mesure effective par le dispositif terminal au cours d'une période est associée à N et à P, la présente invention utilise la ou les valeurs de N et/ou P en tant que facteur de prise en compte dans la détermination de la période de sorte que la période au cours de laquelle le dispositif terminal évalue la qualité de la liaison radio ou du faisceau est plus raisonnable sous l'influence de N et/ou de P, ce qui permet d'améliorer la probabilité que le dispositif terminal obtienne une valeur de mesure effective au cours de la période et d'éviter l'apparition fréquente d'une défaillance de liaison radio ou d'une défaillance de faisceau.
PCT/CN2020/081782 2019-03-29 2020-03-27 Procédé et dispositif d'évaluation de qualité de liaison radio ou de qualité de faisceau WO2020200116A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN114938712A (zh) * 2022-04-13 2022-08-23 北京小米移动软件有限公司 波束选择方法和装置
WO2023207331A1 (fr) * 2022-04-29 2023-11-02 大唐移动通信设备有限公司 Procédé et appareil de configuration de gestion de liaison radio, et support de stockage

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