WO2019218936A1 - 用于无线通信的电子设备和方法、计算机可读存储介质 - Google Patents

用于无线通信的电子设备和方法、计算机可读存储介质 Download PDF

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Publication number
WO2019218936A1
WO2019218936A1 PCT/CN2019/086354 CN2019086354W WO2019218936A1 WO 2019218936 A1 WO2019218936 A1 WO 2019218936A1 CN 2019086354 W CN2019086354 W CN 2019086354W WO 2019218936 A1 WO2019218936 A1 WO 2019218936A1
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WIPO (PCT)
Prior art keywords
quality
wireless communication
candidate
electronic device
window
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Ceased
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PCT/CN2019/086354
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English (en)
French (fr)
Inventor
徐瑨
任文静
李东儒
杨航
陶小峰
曹建飞
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Sony Corp
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Sony Corp
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Application filed by Sony Corp filed Critical Sony Corp
Priority to EP19802773.2A priority Critical patent/EP3783809B1/en
Priority to US17/054,783 priority patent/US11456795B2/en
Priority to CN201980023157.7A priority patent/CN111919399B/zh
Publication of WO2019218936A1 publication Critical patent/WO2019218936A1/zh
Anticipated expiration legal-status Critical
Priority to US17/890,266 priority patent/US12250051B2/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/06964—Re-selection of one or more beams after beam failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular to beam management techniques in New Radio (NR) communications. More particularly, it relates to an electronic device and method for wireless communication and a computer readable storage medium.
  • NR New Radio
  • New Radio is a next-generation wireless access method for Long Term Evolution (LTE), and is a Radio Access Technology (RAT) different from LTE.
  • NR is capable of coping with various use cases including Enhanced Mobile Broadband (eMBB), Massive Machine Type Communications (mMTC), and Ultra reliable and low latency communications (URLLC). (use case) access technology.
  • eMBB Enhanced Mobile Broadband
  • mMTC Massive Machine Type Communications
  • URLLC Ultra reliable and low latency communications
  • MIMO Multiple Input Multiple Output
  • NR MIMO beam management is very important to ensure communication quality. For example, when the beam quality of the beam that is serving the user equipment drops to a certain extent, the beam becomes unavailable, and a beam failure is considered to occur, and a beam failure recovery mechanism is needed to reallocate the beam failure. A new beam of data transmission for the user equipment.
  • an electronic device for wireless communication comprising: processing circuitry configured to: perform beam failure detection on a current serving beam using a first quality indicator of a beam; and first use a beam The quality indicator and the second quality indicator different from the first quality indicator select candidate beams from other beams, and the candidate beams are used for beam recovery after beam failure.
  • a method for wireless communication comprising: performing beam failure detection on a current serving beam using a first quality indicator of a beam; and using a first quality indicator of the beam and being different from the first quality
  • the second quality indicator of the indicator selects a candidate beam from other beams, and the candidate beam is used for beam recovery after beam failure.
  • the electronic device and method according to this aspect of the present application performs candidate beam selection based on two quality indicators including quality indicators used in beam failure detection, which can effectively avoid the occurrence of ping-pong effect and reduce the delay caused by beam failure recovery. .
  • an electronic device for wireless communication comprising: processing circuitry configured to: detect a beam quality of a current serving beam and when the beam quality is lower than the first quality Determining that a beam failure occurs; and detecting a beam quality of other beams in the event of a beam failure, and selecting the beam as a candidate beam if the beam quality is higher than the second quality, wherein the second quality is high For the first quality.
  • a method for wireless communication comprising: detecting a beam quality of a current serving beam, and determining that a beam failure occurs if the beam quality is lower than the first quality; In the case of a beam failure, the beam quality of the other beams is detected, and the beam is selected as a candidate beam if the beam quality is higher than the second quality, wherein the second quality is higher than the first quality.
  • the electronic device and method according to this aspect of the present application can effectively reduce the delay and avoidance caused by beam failure recovery by selecting candidate beams with higher beam quality requirements than beam quality requirements for beam failure detection. Ping-pong effect.
  • an electronic device for wireless communication comprising: processing circuitry configured to: detect a beam quality of a current serving beam; and when the detected beam quality is within a specific range, A prediction window is initiated in which the beam quality of the current serving beam is evaluated.
  • a method for wireless communication comprising: detecting a beam quality of a current serving beam; and initiating a prediction window when the detected beam quality is within a specific range, in the prediction window The beam quality of the current service beam is evaluated internally.
  • the electronic device and method according to this aspect of the present application can estimate the beam quality of the current serving beam by setting a prediction window, so that the switching or recovery operation to be performed can be quickly determined, and the delay can be reduced.
  • an electronic device for wireless communication comprising: processing circuitry configured to determine to be turned on based on information about a tail window included in a beam failure recovery request response from a base station The length of the tail window; and opening the tail window and detecting the beam quality of the new beam in the tail window.
  • a method for wireless communication comprising: determining a length of a tail window to be turned on based on information about a tail window included in a beam failure recovery request response from a base station; and opening a tail The window detects the beam quality of the new beam in the tail window.
  • the electronic device and method according to this aspect of the present application can quickly perform beam recovery and reduce the delay when the new beam fails again by detecting the beam quality of the new beam in the tail window.
  • an electronic device for wireless communication comprising: processing circuitry configured to: generate a configuration of a beam failure recovery operation for a user equipment and include the configuration in a radio resource control message Providing to the user equipment; and generating a beam failure recovery request response in response to a beam failure recovery request from the user equipment, wherein the configuration comprises one or more of the following: multiple beam qualities for beam quality assessment Threshold, first beam quality threshold and second beam quality threshold for candidate beam selection, timer length for candidate beam selection, prediction window length for beam quality assessment.
  • a method for wireless communication comprising: generating a configuration of a beam failure recovery operation for a user equipment and including the configuration in a radio resource control signaling to provide to a user equipment; And generating a beam failure recovery request response in response to a beam failure recovery request from the user equipment, wherein the configuration comprises one or more of: a plurality of beam quality thresholds for beam quality assessment, for candidate beam selection The first beam quality threshold and the second beam quality threshold, the timer length for candidate beam selection, and the prediction window length for beam quality assessment.
  • the electronic device and method according to this aspect of the present application can achieve high efficiency, low latency beam failure recovery by configuring a beam failure recovery operation of the user equipment.
  • a computer program code and computer program product for implementing the above method for wireless communication, and a computer having the computer program code for implementing the above method for wireless communication recorded thereon Readable storage media.
  • FIG. 1 shows a functional block diagram of an electronic device for wireless communication in accordance with one embodiment of the present application
  • FIG. 2 is a schematic diagram showing a flow of a beam failure recovery mechanism performed on the UE side
  • FIG. 3 shows an illustrative example of selecting 2 candidate beams from 4 beams
  • FIG. 4 shows another illustrative example of selecting two candidate beams from four beams
  • FIG. 5 shows another illustrative example of selecting 2 candidate beams from 4 beams
  • FIG. 6 shows a functional block diagram of an electronic device for wireless communication in accordance with another embodiment of the present application.
  • FIG. 7 is a diagram showing selection of candidate beams in the case where a block error rate is used as an indicator of beam quality
  • FIG. 8 is a diagram showing selection of candidate beams in the case where reference signal received power is used as an indicator of beam quality
  • FIG. 9 shows a functional block diagram of an electronic device for wireless communication in accordance with another embodiment of the present application.
  • FIG. 10 shows an example of a case where two threshold values are set
  • FIG. 11 shows an example of a case where three threshold values are set
  • FIG. 12 illustrates a functional block diagram of an electronic device for wireless communication in accordance with another embodiment of the present application.
  • Figure 13 shows a schematic diagram of N times of detection of beam quality
  • FIG. 14 is a flowchart showing one example of an operation performed by a prediction unit
  • Figure 15 shows an example of the detected value of the beam quality
  • FIG. 16 shows a functional block diagram of an electronic device for wireless communication in accordance with another embodiment of the present application.
  • Figure 17 shows an example of a tail window
  • Figure 18 shows a schematic flow chart of the tail window mechanism of the present application
  • FIG. 19 shows a functional block diagram of an electronic device for wireless communication in accordance with another embodiment of the present application.
  • FIG. 20 shows an example of information flow between a base station and a user equipment
  • 21 shows another example of information flow between a base station and a user equipment
  • FIG. 22 shows another example of the flow of information between the base station and the user equipment
  • FIG. 23 shows a flow chart of a method for wireless communication in accordance with one embodiment of the present application.
  • FIG. 24 shows a flow chart of a method for wireless communication in accordance with another embodiment of the present application.
  • 25 shows a flow chart of a method for wireless communication in accordance with another embodiment of the present application.
  • 26 shows a flow chart of a method for wireless communication in accordance with another embodiment of the present application.
  • FIG. 27 shows a flow chart of a method for wireless communication in accordance with another embodiment of the present application.
  • FIG. 28 is a block diagram showing a first example of a schematic configuration of an eNB or a gNB to which the technology of the present disclosure may be applied;
  • 29 is a block diagram showing a second example of a schematic configuration of an eNB or a gNB to which the technology of the present disclosure may be applied;
  • FIG. 30 is a block diagram showing an example of a schematic configuration of a smartphone that can apply the technology of the present disclosure
  • 31 is a block diagram showing an example of a schematic configuration of a car navigation device to which the technology of the present disclosure can be applied;
  • 32 is a block diagram of an exemplary structure of a general purpose personal computer in which methods and/or apparatus and/or systems in accordance with embodiments of the present invention may be implemented.
  • the electronic device 100 includes a beam failure detecting unit 101 configured to use a beam.
  • a quality indicator performs beam failure detection on the current serving beam; and the selecting unit 102 is configured to select a candidate beam from the other beams using the first quality indicator of the beam and the second quality indicator different from the first quality indicator, the candidate beam Used for beam recovery after beam failure.
  • the beam failure detecting unit 101 and the selecting unit 102 can be implemented by one or more processing circuits, which can be implemented, for example, as a chip. Also, it should be understood that the various functional units in the apparatus shown in FIG. 1 are only logical blocks that are divided according to the specific functions that they are implemented, and are not intended to limit the specific implementation. The same applies to the examples of other electronic devices to be described later.
  • the electronic device 100 may be provided, for example, on the user equipment (UE) side or communicably connected to the UE.
  • the electronic device 100 can be implemented at the chip level or at the device level.
  • the electronic device 100 can operate as the user device itself, and can also include external devices such as a memory, a transceiver (not shown), and the like.
  • the memory can be used to store programs and related data information that the user device needs to perform to implement various functions.
  • the transceiver may include one or more communication interfaces to support communication with different devices (e.g., base stations, other user equipment, etc.), and implementations of the transceivers are not specifically limited herein. The same applies to the description of other configuration examples of the electronic device on the user device side.
  • the beam failure recovery mechanism performed by the UE side may include, for example, beam failure detection, candidate beam identification, beam failure recovery request transmission, and beam failure recovery request response acquisition, as shown in FIG. 2.
  • the UE detects the beam quality of the current serving beam to determine whether it meets the beam failure trigger condition; in the candidate beam identification phase, selects an alternative candidate that can be used as the current serving beam from other beams.
  • a beam failure recovery request is sent to a base station (or a receiving and dispatching point, hereinafter simply referred to as a base station), and the beam failure recovery request may include, for example, information about identifying the local UE and the candidate beam;
  • the UE monitors the response to the beam failure recovery request from the base station within a specific time window (which may be referred to as a beam failure recovery window), which may include, for example, one or more of the following: Confirmation of recovery; time for replacing a new beam, that is, after a certain time, the base station and the UE will simultaneously change to a new beam; the identity or indication of the replaced new beam.
  • the beam quality needs to be evaluated.
  • various indicators that can be used for beam quality evaluation, including but not limited to the Physical Downlink Control Channel (PDCCH) block error rate (BLER), reference signal receiving power (Reference Signal Receiving Power, RSRP). )Wait.
  • the reference signal is, for example, a Channel Status Information Reference Signal (CSI-RS).
  • CSI-RS Channel Status Information Reference Signal
  • the quality indicator for beam failure detection is different from the quality indicator for candidate beam selection, there may be a ping-pong effect.
  • the second quality indicator of the selected candidate beam satisfies the quality requirement of normal communication, but the first quality indicator satisfies the trigger condition of the beam failure detection, which will trigger the beam failure recovery mechanism again, thereby increasing unnecessary time. Delay.
  • the beam failure detecting unit 101 performs beam failure detection on the current serving beam using the first quality indicator of the beam
  • the selecting unit 102 uses the first quality indicator of the beam and the second quality different from the first quality indicator.
  • the first quality indicator is the BLER of the PDCCH, also referred to as a Hypothetical PDCCH BLER, hereinafter referred to as BLER
  • the second quality indicator is RSRP, also referred to as L1-RSRP. It should be understood that although some of the following description will be taken as an example, the settings of the first quality indicator and the second quality indicator are not limited thereto.
  • the first quality indicator and the second quality indicator may be the same quality indicator, such as both BLER or RSRP, which are not restrictive.
  • the first, second, ... in this document are for the purpose of distinction only, and do not have any meaning in the order.
  • the selection unit 102 is configured to select one or more beams that satisfy the second predetermined condition and are optimal as the candidate beam from among the beams whose first quality indicator satisfies the first predetermined condition.
  • the first predetermined condition when the beam quality indicated by the first quality indicator is higher than the first predetermined quality, it is considered that the first predetermined condition is satisfied, and when the beam quality indicated by the second quality indicator is higher than the second predetermined quality, the second predetermined condition is considered to be satisfied, wherein The first predetermined mass and the second predetermined mass may be substantially equal or may not be equal. The better the beam quality, the better the beam.
  • the beam failure detecting unit 101 compares the BLER of the current serving beam with a first threshold, such as 1%, and considers that a beam failure occurs if the BLER is above a threshold. Subsequently, when selecting the candidate beam, the selection unit 102 considers not only the RSRP of the candidate beam but also the BLER of the candidate beam. In other words, it is necessary not only to ensure that the RSRP of the selected candidate beam is higher than a second threshold such as -105 dBm, but also to ensure that its BLER is lower than a first threshold such as 1%.
  • the beam quality indicated by the first threshold and the second threshold, respectively, can be considered to be substantially equivalent.
  • N candidate beams need to be selected, where the value of N can be configured by the base station, and the selecting unit selects the first N beams with the RSRP higher than the second threshold and the highest RSRP from the beams with the BLER lower than the first threshold.
  • FIG. 3 shows an illustrative example of selecting 2 candidate beams from 4 beams.
  • the BLERs of the four beams listed are all lower than the first threshold and arranged in descending order of their RSRP.
  • the selection unit 102 is configured to select one or more beams that satisfy the first predetermined condition and are optimal as the candidate beam from among the beams whose second quality indicator satisfies the second predetermined condition. Still taking the first quality indicator as the BLER and the second quality indicator as the RSRP, the selecting unit 102 selects the first N beams whose BLER is lower than the first threshold and the BLER lowest from the beams with the RSRP higher than the second threshold as the candidate beam. . For the illustrative example shown in FIG. 3, selection unit 102 will select beam 3 and beam 4 with the lowest BLER as candidate beams.
  • the selecting unit 102 is configured to determine, for the second quality indicator, a beam of the second predetermined condition, and determine the first quality of each beam in order from the highest to the lowest of the beam quality indicated by the second quality indicator. Whether the indicator satisfies the first predetermined condition, and the beam selection that the first quality indicator satisfies the first predetermined condition is used as a candidate beam until the number of candidate beams reaches the requirement.
  • the first quality indicator is the BLER and the second quality indicator is the RSRP.
  • the selecting unit 102 may calculate the BLER for the N beams with the highest RSRP among the beams whose RSRP is higher than the second threshold, if the BLER is lower than the first threshold.
  • Figure 4 shows a schematic diagram of the selection of candidate beams in this example. It can be seen that in the case where beam 1 and beam 2 satisfy the condition, it is not necessary to calculate the BLER of beam 3 and beam 4, thereby reducing the calculation load.
  • FIG. 5 shows a schematic diagram of the selection of candidate beams in this case. As shown in FIG. 5, since the BLER of the beam 2 is higher than the threshold of 1%, the BLER of the beam 3 is continuously calculated. The BLER of beam 3 is below the threshold, so that beam 1 and beam 3 are selected as candidate beams.
  • the selection unit 102 uses the first threshold for the first quality indicator when performing candidate beam selection, and may also perform the evaluation of the beam quality based on the first quality indicator using a third threshold different from the first threshold. In this case, the selection unit 102 compares the first quality indicator of the beam with the third threshold and compares the second quality indicator of the beam with the second threshold to select the candidate beam.
  • the beam quality represented by the third threshold may be better than the beam quality represented by the first threshold, and the beam quality represented by the second threshold may be better than the beam quality represented by the first threshold.
  • the third threshold and the first threshold may be set to be equal, and the second threshold represents a beam quality that is better than a beam quality represented by the first threshold.
  • the selection unit 102 can select candidate beams with higher beam quality requirements to improve the stability of the new beam after beam failure recovery and reduce the delay.
  • a gap value may be added as a second threshold for candidate beam selection based on the first threshold for beam failure detection. For example, in a case where both the first quality indicator and the second quality indicator are BLER, the gap value is negative; and in the case where both the first quality indicator and the second quality indicator are RSRP, the gap value is positive.
  • the selecting unit 102 is further configured to set a timer when performing candidate beam selection to detect the first quality indicator and the second quality indicator of the beam within the timing duration of the timer, and the beam within the timing duration
  • the first quality indicator and the second quality indicator both satisfy the predetermined condition as a candidate beam, and the beam is selected as a candidate beam.
  • the timing duration of the timer may be referred to as a candidate beam detection window, for example. It can be understood that, in a case where the first quality indicator and the second quality indicator are different, timers having different timing durations may also be set for the first quality indicator and the second quality indicator, respectively.
  • the information about the setting of one or more of the first threshold, the second threshold, the third threshold, the length of the candidate beam detection window, and the gap value may be from the base station via radio resource control (RRC) signaling. obtain.
  • RRC radio resource control
  • the electronic device performs candidate beam selection based on two quality indicators including the quality indicator used in beam failure detection, which can effectively avoid the appearance of the ping-pong effect and reduce the delay.
  • FIG. 6 shows a functional block diagram of an electronic device 200 for wireless communication, the electronic device 200 comprising: a first detecting unit 201 configured to perform beam quality on a current serving beam, according to another embodiment of the present application. Detecting, and determining that beam failure occurs if the beam quality is lower than the first quality; and second detecting unit 202 configured to detect beam quality of other beams in the event of beam failure, and in beam quality The beam is selected as a candidate beam above a second quality, wherein the second quality is higher than the first quality.
  • the first detection unit 201 and the second detection unit 202 can be implemented by one or more processing circuits, which can be implemented, for example, as a chip. Also, it should be understood that the various functional units in the apparatus shown in FIG. 6 are only logical blocks that are divided according to the specific functions that they are implemented, and are not intended to limit the specific implementation. Similarly, the electronic device 200 can be disposed, for example, on the user equipment (UE) side or communicably connected to the UE.
  • UE user equipment
  • the beam quality of the candidate beam selected by the second detecting unit 202 is higher, and the occurrence of the ping-pong effect can be avoided.
  • the beam quality can be expressed by BLER or RSRP.
  • the manner of expressing the beam quality used by the first detecting unit 201 and the manner of expressing the beam quality used by the second detecting unit 202 may be the same or different.
  • the second detecting unit 102 is further configured to set a timer when performing candidate beam selection to detect the beam quality of the beam within the timing duration of the timer, and the beam quality of the beam is higher than the second in the timing duration The beam is selected as a candidate beam in the case of quality.
  • FIG. 7 shows a schematic diagram of selection of candidate beams in the case where BLER is used as an indicator of beam quality.
  • the first threshold corresponds to the first quality
  • the second threshold corresponds to the second quality
  • the duration of the timer is referred to as a candidate beam detection window.
  • Figure 8 shows a schematic diagram of the selection of candidate beams in the case where both RSRP is used as an indicator of beam quality.
  • the second threshold corresponds to the first threshold plus a gap.
  • the gap value is negative; when the quality index is RSRP, the gap value is positive.
  • the information about the setting of one or more of the first quality, the second quality, the timing duration of the timer (ie, the length of the candidate beam detection window), the gap value, and the like may be controlled via Radio Resource Control (RRC).
  • RRC Radio Resource Control
  • Signaling is obtained from the base station.
  • the electronic device and method according to this aspect of the present application can effectively reduce the delay and avoidance caused by beam failure recovery by selecting candidate beams with higher beam quality requirements than beam quality requirements for beam failure detection. Ping-pong effect.
  • FIG. 9 illustrates a functional block diagram of an electronic device 300 for wireless communication, the electronic device 300 including: a detecting unit 301 configured to detect a beam quality of a current serving beam, and a prediction according to another embodiment of the present application.
  • the unit 302 is configured to, when the detected beam quality is within a certain range, initiate a prediction window in which the beam quality of the current serving beam is evaluated.
  • the detecting unit 301 and the predicting unit 302 can be implemented by one or more processing circuits, which can be implemented, for example, as a chip. Also, it should be understood that the various functional units in the apparatus shown in FIG. 9 are only logical modules that are divided according to the specific functions that they are implemented, and are not intended to limit the specific implementation.
  • the electronic device 300 may be provided, for example, on the user equipment (UE) side or communicably connected to the UE.
  • the electronic device 300 can be implemented at the chip level or at the device level.
  • the electronic device 300 can operate as the user device itself, and can also include external devices such as a memory, a transceiver (not shown), and the like.
  • the memory can be used to store programs and related data information that the user device needs to perform to implement various functions.
  • the transceiver may include one or more communication interfaces to support communication with different devices (e.g., base stations, other user equipment, etc.), and implementations of the transceivers are not specifically limited herein.
  • a scheme of setting a prediction window is proposed to enable beam failure recovery or beam switching to be performed quickly, and delay is reduced.
  • the prediction unit 302 starts the prediction window and continues to detect the beam quality of the current serving beam in the prediction window to evaluate or predict whether the current serving beam will fail or continue to deteriorate. .
  • the beam quality may be expressed by, for example, one or more of the following: BLER, RSRP, and Reference Signal Receiving Quality (RSRQ) of the PDCCH.
  • BLER BLER
  • RSRP Reference Signal Receiving Quality
  • RSRQ Reference Signal Receiving Quality
  • multiple thresholds of beam quality may be set, where a beam failure occurs when the beam quality is below the worst beam quality indicated by the threshold.
  • the beam quality is higher than the worst beam quality indicated by the threshold but lower than the beam quality required to maintain good quality communication, the beam is considered to be corrupted, ie the beam quality is poor but the link can sometimes work.
  • a particular range is set to a range between two of a plurality of thresholds for beam quality.
  • the beam quality is degraded and the prediction window is started.
  • Figure 10 shows an example of a situation in which two thresholds are set, where the beam quality is measured in terms of RSRP, but it should be understood that this is not limiting and other beam quality indicators may be employed.
  • the beam quality is divided into three levels by threshold 1 and threshold 2, wherein the level A quality is the best, the reliable communication can be maintained and the user experience is good; the level B quality is poor, and the user experience can be compared. Poor communication; Class C quality is the worst, communication is impossible, and when the beam quality drops to level C, beam failure is considered to occur.
  • the specific range includes the RSRP range corresponding to level B.
  • FIG. 11 shows an example of a case where three threshold values are set, in which the beam quality is divided into three levels by the threshold 1, the threshold 2, and the threshold 3, wherein the level A quality is the best, and reliable communication can be maintained and the user Good experience; level B quality is good, can also maintain good communication quality; level C quality is poor, can carry out poor user experience communication; level D quality is the worst, can not communicate, when the beam quality drops to level D At the time, it is considered that a beam failure has occurred.
  • the prediction window is started, and the specific range includes the RSRP range corresponding to the level C.
  • the two thresholds defining the specific range include one of the thresholds indicating the worst of the beam qualities among the plurality of thresholds. In other words, falling within a certain range of beam quality indicates that the beam quality becomes poor and there is a greater possibility of beam failure. Accordingly, prediction unit 302 continues the evaluation in the prediction window to determine if the beam degradation is an accidental event or an indication that beam switching is required.
  • the prediction unit 302 is configured to determine that the quality of the current serving beam is poor in the case where the number of events in which the beam quality is within a certain range is detected in the prediction window exceeds a predetermined value, and generate a beam switching request such as Beam_Switch_request to Sending to the base station, the beam switching process is started.
  • the detection is used as an event of detecting a bad beam once, and these events are counted in the prediction window, and when the count value exceeds a predetermined value, the beam quality is considered to become Very poor, need to switch to a beam with better beam quality to continue communication.
  • the worst beam quality indicated by the threshold such as falling to level C in the example of FIG. 10 or falling to level D in the example of FIG. 11
  • the prediction unit 302 will generate a beam failure recovery request to send to the base station, that is, turn on the beam failure recovery procedure.
  • FIG. 12 shows another functional block diagram of the electronic device 300.
  • the electronic device 300 further includes a switching unit 303 for performing related operations of beam switching.
  • the switching unit 303 is configured to detect the beam quality of the other beams to select one or more candidate beams as the handover target if the prediction unit 302 determines the beam quality difference of the current serving beam, and the prediction unit 302 will The information of the selected candidate beam is included in the beam switching request.
  • the beam switching request may further include an identifier of the current serving beam and beam quality information.
  • the beam quality of the candidate beam is higher than the upper limit of the beam quality indicated by the specific range, and the beam quality of the candidate beam is higher than the beam quality corresponding to the threshold for beam failure detection by a predetermined value.
  • the switching unit 303 is further configured to initiate a beam switching window after the beam switching request is transmitted, in which a beam switching request response (such as Beam_Switch_request_Response) from the base station is monitored.
  • the beam switching request response includes, for example, one or more of the following: an acknowledgement of the beam switching request; a time when the beam switching is performed, that is, the base station and the UE simultaneously switch to the new beam after a certain time; and a new beam to be switched to ID information and so on.
  • the beam switching request and the beam switching request response can be transmitted on the current serving beam.
  • the information of one or more of the various parameters used in the above operations may be obtained via RRC signaling, including, for example, a plurality of thresholds of beam quality, a specific range, a size of a prediction window, and a beam quality within a specific range.
  • RRC signaling including, for example, a plurality of thresholds of beam quality, a specific range, a size of a prediction window, and a beam quality within a specific range.
  • the prediction unit 302 is configured to perform a predetermined number of detections of the beam quality of the current serving beam in the prediction window, record the detected value for each detection, and predict whether the current serving beam is based on the recorded detection value. Will fail.
  • the predetermined number of times can be configured by the base station.
  • the prediction unit 302 observes the trend of the beam quality by recording the detected value of the multiple detections to predict whether beam failure will occur.
  • Figure 13 shows a schematic diagram of N times of detection of beam quality.
  • the prediction unit 302 is configured to determine a change trend of the beam quality of the current serving beam by comparing the ratio of the latter detected value to the previous detected value with a specific parameter, wherein the specific parameter is on a specific range
  • the lower limit is related to the predetermined number of times.
  • the prediction unit 302 calculates And Compare with a specific parameter t. among them T1 is an upper limit of a specific range such as threshold 1 in FIG. 10, and t2 is a lower limit of a specific range such as threshold 2 in FIG. 10 because if the beam quality continuously drops from the threshold 1 to the threshold 2 in N detection periods,
  • the detected value of the beam quality can be regarded as a geometric sequence.
  • the RSRP of the beam falls to t times the RSRP of the previous detection period, the RSRP of the beam will drop to N after the N cycles. Threshold 2. So if It is indicated that the drop in beam quality in the detection period i is consistent with the tendency of the RSRP to fall to the threshold 2 in N cycles.
  • t can also be set to Where ⁇ represents a fixed value that is fine-tuned on the basis of t2, and in the case of using RSRP, it takes a positive value.
  • Prediction unit 302 is also configured to count the comparisons that are consistent with the trend of change, and predict that the current service beam will fail when the count reaches a predetermined number of times. For example, in the above example it will be The comparison is counted, when the count reaches N, the current service beam is predicted to fail, and a beam failure recovery request can be sent to the base station.
  • the prediction unit 302 is further configured to adjust the predetermined number of times when the trend of change is inconsistent, and predict that the current service beam will fail when the count reaches the adjusted predetermined number of times.
  • the prediction unit 302 may perform the adjustment by adding a value to the predetermined number of times: the difference between the sequence number of the previous detection value corresponding to the comparison in which the change trend is inconsistent, and the sequence number of the previous proximity detection value of the previous detection value, Where the previous proximity detection value is the latter detection value corresponding to the comparison in which the change trend is inconsistent in the range between the previous detection value and the previous detection value in which the comparison has been performed, the comparison has been performed.
  • the latter detected value is the previous detected value in the previous detected value.
  • the prediction unit 302 will close the prediction window and no longer perform Prediction and evaluation of beam quality.
  • FIG. 14 shows a flowchart of one example of an operation performed by a prediction unit in this example.
  • the detected values shown in Fig. 13 are still taken as an example.
  • step S11 the beam quality of the current serving beam is detected, and it is determined in step S12 whether the beam quality has fallen below the threshold value 1. If the determination is YES, the prediction window is started, and the process proceeds to step S13.
  • step S13 the calculation And judge Whether it is established, and if so, proceeds to step S14, where i and the count count are respectively incremented by 1 (where the initial value of count is 0). Then, proceeding to step S15, it is judged whether or not the updated count count has reached the predetermined number of times N. If the determination is yes, it is determined that a beam failure has occurred, and the process proceeds to step S19 to transmit a beam failure recovery request to the base station. If the determination in step S15 is NO, the process returns to step S13 to continue counting.
  • step S16 Q i is compared with the preceding Q i-1 , Q i-2 , ..., Q 1 , and if Q i is found to be between Q m and Q m+1 , there is For such m, steps S17 and S18 are performed, in which i and the count count are respectively incremented by 1, and N is changed to N+im.
  • the above description is based on RSRP as an indicator of beam quality, but the above description is equally applicable to other beam quality indicators such as BLER, and only some comparison rules need to be adjusted accordingly.
  • the UE side when determining that a beam failure occurs, the UE side also needs to select candidate beams and correlate candidate beams. The information is included in the transmitted beam failure recovery request.
  • the information of one or more of the various parameters used in the above operations may be obtained via RRC signaling, including, for example, multiple thresholds of beam quality, a specific range, a size of a prediction window, and detection of beam quality in a prediction window.
  • the electronic device and method according to the present embodiment can estimate the beam quality of the current serving beam by setting a prediction window, so that the switching or recovery operation to be performed can be quickly determined, and the delay is reduced.
  • the electronic device 400 includes a determining unit 401 configured to fail based on a beam from a base station.
  • the information about the tail window included in the recovery request response determines the length of the tail window to be opened; and the detecting unit 402 is configured to turn on the tail window and detect the beam quality of the new beam in the tail window.
  • the determining unit 401 and the detecting unit 402 can be implemented by one or more processing circuits, which can be implemented, for example, as a chip. Also, it should be understood that the various functional units in the apparatus shown in FIG. 16 are only logical blocks that are divided according to the specific functions that they are implemented, and are not intended to limit the specific implementation.
  • the electronic device 400 may be provided, for example, on the user equipment (UE) side or communicably connected to the UE.
  • the electronic device 400 can be implemented at the chip level or can also be implemented at the device level.
  • electronic device 400 can operate as a user device itself, and can also include external devices such as a memory, a transceiver (not shown), and the like.
  • the memory can be used to store programs and related data information that the user device needs to perform to implement various functions.
  • the transceiver may include one or more communication interfaces to support communication with different devices (e.g., base stations, other user equipment, etc.), and implementations of the transceivers are not specifically limited herein.
  • the new beam after beam failure recovery may fail again in a short time, that is, the beam quality falls below the beam failure detection threshold.
  • the beam failure recovery mechanism needs to be triggered again, and the UE needs to wait for the same long beam recovery delay, which may result in a poor user experience.
  • the concept of a tail window is proposed. Specifically, when the beam recovery is successful, for example, the beam quality of the new beam reaches a level at which the beam can work normally, the new beam is still monitored for a period of time, which is called a tail window. If beam failure occurs again within the tail window, a faster beam recovery mechanism will be triggered.
  • the electronic device 400 further includes: a generating unit 403 configured to generate a beam when detecting that the number of times that the beam quality of the current serving beam is lower than a predetermined threshold exceeds the first number of times A failure recovery request; and generating a new beam failure recovery request when the number of times the beam quality of the new beam is detected to be lower than the predetermined threshold exceeds the second number in the tail window, wherein the first number of times is greater than the second number.
  • a generating unit 403 configured to generate a beam when detecting that the number of times that the beam quality of the current serving beam is lower than a predetermined threshold exceeds the first number of times A failure recovery request; and generating a new beam failure recovery request when the number of times the beam quality of the new beam is detected to be lower than the predetermined threshold exceeds the second number in the tail window, wherein the first number of times is greater than the second number.
  • the generating unit 401 sets a different M for the case where the beam failure occurs for the first time and the case where the beam failure occurs again in the tail window after the beam failure recovery, wherein a smaller M is set for the case where the beam failure occurs again in the tail window
  • M can be reduced each time, that is, M for the next beam failure detection is smaller than M for the previous beam failure detection until the specified minimum value of M is reached. until.
  • the electronic device 400 further includes: a response monitoring unit 404 configured to turn on the first length of the beam after the beam failure recovery request is transmitted.
  • the window waits for a beam failure recovery request response; and opens a second length beam failure recovery window after the new beam failure recovery request is sent to wait for a beam failure recovery request response, wherein the first length is greater than the second length.
  • the UE after transmitting a beam failure recovery request to the base station, the UE will monitor the response from the base station for a certain period of time, which may be referred to as a beam failure recovery window.
  • the response monitoring unit 404 turns on a beam failure recovery window of a different length for the case where the beam failure occurs for the first time and the case where the beam failure occurs again in the tail window, wherein the short-length is opened for the case where the beam failure occurs again in the tail window
  • the beam fails to recover the window, thereby reducing the delay of beam recovery in the case of frequent beam failures.
  • the first length and the second length may be in units of time slots, and the first length and the second length may be set by the base station.
  • the length of the beam failure recovery window may be reduced each time, that is, the length of the subsequent beam failure recovery window is smaller than the length of the previous beam failure recovery window until the specified value is reached. The minimum value of the length of the beam failure recovery window.
  • Figure 17 shows an example of a tail window.
  • the first beam failure recovery in the beam failure detection phase, when M1 consecutive beam failure events are detected, the beam failure is considered to occur, and a beam failure recovery request (BFRQ) is sent to the base station, and then the length is The T1ms beam failure recovery window listens and receives the BFRQ response from the base station. After the new beam is working normally, the tail window is opened and a second beam failure recovery occurs in the tail window.
  • M2 consecutive beam failure events are detected in the beam failure detection phase, that is, beam failure is considered to occur and BFRQ is sent to the base station, where M2 ⁇ M1.
  • the length of the beam failure recovery window for monitoring and receiving the BFRQ response from the base station is also reduced to T2ms, where T2 ⁇ T1.
  • T2 the length of the beam failure recovery window for monitoring and receiving the BFRQ response from the base station
  • Fig. 18 shows a schematic flow chart of the tail window mechanism of the present embodiment.
  • the UE detects the beam quality in S21 and finds that the beam quality falls below the threshold, and then determines whether a beam failure occurs in S22, that is, whether the number of beam failure events exceeds the maximum number of beam failure events M. If the determination is no, the process returns to S21 to continue the detection, and otherwise proceeds to S23, and the BFRQ is transmitted to the base station. It is then determined in S24 whether a BFRQ response from the base station is received in the beam failure recovery window, and if not received, proceeds to S27 to notify the higher layer to perform additional processing.
  • step S25 If a BFRQ response is received, proceed to step S25 to turn on the tail window and monitor in the tail window whether the beam quality of the new beam falls below a threshold. If the monitoring result is no, the process proceeds to step S28, and the beam recovery is successful. If the monitoring result is YES, the number of maximum beam failure events M in the beam failure detection and the size T of the beam failure recovery window are changed and the process returns to step S22 to perform beam failure detection, and then the following steps are repeated.
  • the generating unit 403 is further configured to generate an open tail window request (such as Open_Tail_Window_Request) to be transmitted to the base station simultaneously with the beam failure recovery request. That is, the setting information of the tail window may be transmitted in response to a request of the UE. Accordingly, the information about the tail window from the base station may include, for example, one or more of the following: an indication to open the tail window, a length of the tail window, a maximum number of beam failure events, a length of the beam failure recovery window in the tail window, and the like.
  • the electronic device and method according to this aspect of the present application can quickly perform beam recovery and reduce the delay when the new beam fails again by detecting the beam quality of the new beam in the tail window.
  • FIG. 19 shows a functional block diagram of an electronic device 500 according to another embodiment of the present application.
  • the electronic device 500 includes: a first generating unit 501 configured to generate beam failure recovery for a user equipment. a configuration of the operation and including the configuration in the radio resource control signaling to provide to the user equipment; and a second generation unit 502 configured to generate a beam failure recovery request response in response to the beam failure recovery request from the user equipment, where
  • the configuration includes one or more of the following: a plurality of beam quality thresholds for beam quality assessment, a first beam quality threshold and a second beam quality threshold for candidate beam selection, a timer for candidate beam selection Length, the length of the prediction window used for beam quality assessment.
  • the first generating unit 501 and the second generating unit 502 can be implemented by one or more processing circuits, which can be implemented, for example, as a chip. Also, it should be understood that the various functional units in the apparatus shown in FIG. 19 are only logical modules that are divided according to the specific functions that they are implemented, and are not intended to limit the specific implementation.
  • the electronic device 500 can be provided, for example, at the base station side or communicably connected to the base station.
  • the electronic device 500 can be implemented at the chip level or at the device level.
  • the electronic device 500 can operate as the base station itself, and can also include external devices such as a memory, a transceiver (not shown), and the like.
  • the memory can be used to store programs and related data information that the base station needs to perform to implement various functions.
  • the transceiver may include one or more communication interfaces to support communication with different devices (eg, user equipment, other base stations, etc.), and implementations of the transceiver are not specifically limited herein.
  • the electronic device 500 in this embodiment may provide an RRC configuration signaling and a beam failure recovery request (BFRQ) response corresponding to one or more of the electronic devices 100 to 400 in the foregoing embodiments.
  • BFRQ beam failure recovery request
  • the configuration regarding the beam failure recovery operation in the RRC has been given in the first to fourth embodiments, and will not be repeated here.
  • the second generation unit 502 is further configured to generate a beam switch request response for the beam switching request from the user equipment.
  • the beam switching request response includes, for example, an acknowledgment of the beam switching request or information of the ID of the new beam to be switched to, and the like.
  • the second generation unit 502 can also include information about the length of the tail window in the BFRQ response in which the user equipment detects the beam quality of the new beam.
  • the electronic device and the method according to the embodiment can implement beam failure recovery operation of the user equipment, so that beam failure recovery with high efficiency and low delay can be achieved.
  • FIG. 20 shows an information flow for a beam handover between a base station and a user equipment.
  • the base station sends an RRC configuration to the user equipment, where the RRC configuration may include a size of a prediction window related to beam switching, a setting of multiple thresholds, and the like, and the UE detects the beam quality based on the configuration and discovers the beam.
  • the quality drops to a specific range defined by the threshold, at which time the UE turns on the prediction window, and if it detects that the beam becomes a bad beam in the prediction window, sends a beam handover request to the base station, which may include information of the candidate beam as the handover target.
  • ID and beam quality may also include the ID and beam quality of the current bad beam.
  • the base station transmits a beam switch request response to the user equipment in response to the beam switch request, including an acknowledgement of the beam switch request.
  • the user equipment switches to the candidate beam based on the beam switching request response.
  • Figure 21 shows the flow of information for beam recovery between the base station and the user equipment.
  • the base station sends an RRC configuration to the user equipment.
  • the RRC configuration may include parameters related to beam failure detection, parameters related to selection of candidate beams, and may also include the foregoing parameters related to beam switching.
  • the configuration detects the beam quality and finds that a beam failure occurs or predicts that a beam failure occurs (for example, adopting the scheme in the third embodiment).
  • the UE sends a beam failure recovery request to the base station, where the candidate beam information may be included. ID and beam quality, etc.
  • the base station transmits a beam failure recovery request response to the user equipment in response to the beam failure recovery request, including an acknowledgement of the beam failure recovery request.
  • the user equipment switches to the candidate beam based on the beam failure recovery request response.
  • FIG. 22 also shows a diagram of an example of information flow between the base station and the user equipment in the case where the tail window is set.
  • the user equipment further sends a tail window request when transmitting the BFRQ to the base station, and the base station sends a BFRQ response to the user equipment in response to the request.
  • the user equipment switches to the new beam and detects the beam quality of the new beam in the tail window.
  • the BFRQ response from the base station is requested and received again to the base station BFRQ and the open tail window, and the execution is repeated.
  • FIG. 23 shows a flowchart of a method for wireless communication according to an embodiment of the present application, including: performing beam failure detection on a current serving beam using a first quality indicator of a beam (S31); and using a beam The first quality indicator and the second quality indicator different from the first quality indicator select candidate beams from other beams, and the candidate beams are used for beam recovery after beam failure (S32).
  • the method uses two quality indicators when selecting a candidate beam, so that the ping-pong effect is avoided when the beam quality indicator for beam failure detection and the selected beam quality index for the candidate beam are different, and the delay of beam failure recovery is reduced. .
  • the method corresponds to the device 100 described in the first embodiment, and the specific details can be referred to the description of the corresponding positions above, and are not repeated here.
  • FIG. 24 illustrates a method for wireless communication in accordance with another embodiment of the present application, the method comprising: detecting a beam quality of a current serving beam, and determining that a beam is generated if a beam quality is lower than a first quality Failure (S41); and detecting the beam quality of the other beams in the case where the beam failure occurs, and selecting the beam as a candidate beam if the beam quality is higher than the second quality (S42), wherein The second mass is higher than the first mass.
  • S41 first quality Failure
  • S42 second quality
  • the method can avoid the ping-pong effect and reduce the delay of beam failure recovery.
  • This method corresponds to the apparatus 200 described in the second embodiment, and the specific details can be referred to the description of the corresponding positions above, and will not be repeated here.
  • FIG. 25 illustrates a method for wireless communication according to another embodiment of the present application, the method including: detecting a beam quality of a current serving beam (S51); and starting when the detected beam quality is within a specific range a prediction window in which the beam quality of the current serving beam is evaluated (S52).
  • the method can predict the possible beam failure when the beam quality of the service beam decreases to a certain extent by setting the prediction window, thereby performing beam switching or beam recovery in time and reducing the delay.
  • the method corresponds to the device 300 described in the third embodiment, and the specific details can be referred to the description of the corresponding positions above, and are not repeated here.
  • 26 illustrates a method for wireless communication according to another embodiment of the present application, the method including: determining a length of a tail window to be turned on based on information about a tail window included in a beam failure recovery request response from a base station (S61); and opening the tail window and detecting the beam quality of the new beam in the tail window (S62).
  • the method achieves rapid recovery of frequent beam failures by setting a tail window, and reduces the delay.
  • the method corresponds to the device 400 described in the fourth embodiment, and the specific details can be referred to the description of the corresponding positions above, and are not repeated here.
  • FIG. 27 illustrates a method for wireless communication according to another embodiment of the present application, the method including: generating a configuration of a beam failure recovery operation for a user equipment and including the configuration in RRC signaling to provide to a user a device (S71); and generating a beam failure recovery request response (S72) in response to a beam failure recovery request from the user equipment, wherein the configuration comprises one or more of the following: multiple beam qualities for beam quality assessment Threshold, first beam quality threshold and second beam quality threshold for candidate beam selection, timer length for candidate beam selection, prediction window length for beam quality assessment.
  • the method can implement high-efficiency and low-latency beam failure recovery.
  • the method corresponds to the device 500 described in the fifth embodiment, and the specific details can be referred to the description of the corresponding positions above, and are not repeated here.
  • the technology of the present disclosure can be applied to various products.
  • the base station can be implemented as any type of evolved Node B (eNB) or gNB (5G base station).
  • the eNB includes, for example, a macro eNB and a small eNB.
  • the small eNB may be an eNB covering a cell smaller than the macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB.
  • a similar situation can also be used for gNB.
  • the base station can be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS).
  • BTS base transceiver station
  • the base station can include: a body (also referred to as a base station device) configured to control wireless communication; and one or more remote wireless headends (RRHs) disposed at a different location than the body.
  • a body also referred to as a base station device
  • RRHs remote wireless headends
  • various types of user equipment can operate as a base station by performing base station functions temporarily or semi-persistently.
  • the user device can be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/encrypted dog type mobile router and a digital camera device) or an in-vehicle terminal (such as a car navigation device).
  • the user equipment may also be implemented as a terminal (also referred to as a machine type communication (MTC) terminal) that performs machine-to-machine (M2M) communication.
  • MTC machine type communication
  • M2M machine-to-machine
  • the user equipment may be a wireless communication module (such as an integrated circuit module including a single wafer) installed on each of the above terminals.
  • the eNB 800 includes one or more antennas 810 and a base station device 820.
  • the base station device 820 and each antenna 810 may be connected to each other via an RF cable.
  • Each of the antennas 810 includes a single or multiple antenna elements, such as multiple antenna elements included in a multiple input multiple output (MIMO) antenna, and is used by the base station apparatus 820 to transmit and receive wireless signals.
  • the eNB 800 can include multiple antennas 810.
  • multiple antennas 810 can be compatible with multiple frequency bands used by eNB 800.
  • FIG. 28 illustrates an example in which the eNB 800 includes multiple antennas 810, the eNB 800 may also include a single antenna 810.
  • the base station device 820 includes a controller 821, a memory 822, a network interface 823, and a wireless communication interface 825.
  • the controller 821 can be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station device 820. For example, controller 821 generates data packets based on data in signals processed by wireless communication interface 825 and communicates the generated packets via network interface 823. Controller 821 can bundle data from multiple baseband processors to generate bundled packets and pass the generated bundled packets. The controller 821 can have logic functions that perform control such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby eNBs or core network nodes.
  • the memory 822 includes a RAM and a ROM, and stores programs executed by the controller 821 and various types of control data such as a terminal list, transmission power data, and scheduling data.
  • Network interface 823 is a communication interface for connecting base station device 820 to core network 824. Controller 821 can communicate with a core network node or another eNB via network interface 823. In this case, the eNB 800 and the core network node or other eNBs may be connected to each other through a logical interface such as an S1 interface and an X2 interface. Network interface 823 can also be a wired communication interface or a wireless communication interface for wireless backhaul lines. If network interface 823 is a wireless communication interface, network interface 823 can use a higher frequency band for wireless communication than the frequency band used by wireless communication interface 825.
  • the wireless communication interface 825 supports any cellular communication scheme, such as Long Term Evolution (LTE) and LTE-Advanced, and provides a wireless connection to terminals located in cells of the eNB 800 via the antenna 810.
  • Wireless communication interface 825 may typically include, for example, a baseband (BB) processor 826 and RF circuitry 827.
  • the BB processor 826 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs layers (eg, L1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP)) Various types of signal processing.
  • BB processor 826 may have some or all of the above described logic functions.
  • the BB processor 826 can be a memory that stores a communication control program, or a module that includes a processor and associated circuitry configured to execute the program.
  • the update program can cause the function of the BB processor 826 to change.
  • the module can be a card or blade that is inserted into a slot of the base station device 820. Alternatively, the module can also be a chip mounted on a card or blade.
  • the RF circuit 827 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 810.
  • the wireless communication interface 825 can include a plurality of BB processors 826.
  • multiple BB processors 826 can be compatible with multiple frequency bands used by eNB 800.
  • the wireless communication interface 825 can include a plurality of RF circuits 827.
  • multiple RF circuits 827 can be compatible with multiple antenna elements.
  • FIG. 28 illustrates an example in which the wireless communication interface 825 includes a plurality of BB processors 826 and a plurality of RF circuits 827, the wireless communication interface 825 may also include a single BB processor 826 or a single RF circuit 827.
  • the transceiver of the electronic device 500 can be implemented by the wireless communication interface 825. At least a portion of the functionality can also be implemented by controller 821.
  • the controller 821 may generate RRC signaling for the user equipment including the configuration for the beam failure recovery operation and generate a BFRQ response by performing the functions of the first generation unit 501 and the second generation unit 502.
  • the eNB 830 includes one or more antennas 840, a base station device 850, and an RRH 860.
  • the RRH 860 and each antenna 840 may be connected to each other via an RF cable.
  • the base station device 850 and the RRH 860 can be connected to each other via a high speed line such as a fiber optic cable.
  • Each of the antennas 840 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the RRH 860 to transmit and receive wireless signals.
  • eNB 830 can include multiple antennas 840.
  • multiple antennas 840 may be compatible with multiple frequency bands used by eNB 830.
  • FIG. 29 illustrates an example in which the eNB 830 includes multiple antennas 840, the eNB 830 may also include a single antenna 840.
  • the base station device 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855, and a connection interface 857.
  • the controller 851, the memory 852, and the network interface 853 are the same as the controller 821, the memory 822, and the network interface 823 described with reference to FIG.
  • the wireless communication interface 855 supports any cellular communication scheme (such as LTE and LTE-Advanced) and provides wireless communication to terminals located in sectors corresponding to the RRH 860 via the RRH 860 and the antenna 840.
  • Wireless communication interface 855 can generally include, for example, BB processor 856.
  • the BB processor 856 is identical to the BB processor 826 described with reference to FIG. 28 except that the BB processor 856 is connected to the RF circuit 864 of the RRH 860 via the connection interface 857.
  • the wireless communication interface 855 can include a plurality of BB processors 856.
  • multiple BB processors 856 can be compatible with multiple frequency bands used by eNB 830.
  • FIG. 29 illustrates an example in which the wireless communication interface 855 includes a plurality of BB processors 856, the wireless communication interface 855 can also include a single BB processor 856.
  • connection interface 857 is an interface for connecting the base station device 850 (wireless communication interface 855) to the RRH 860.
  • the connection interface 857 may also be a communication module for communicating the base station device 850 (wireless communication interface 855) to the above-described high speed line of the RRH 860.
  • the RRH 860 includes a connection interface 861 and a wireless communication interface 863.
  • connection interface 861 is an interface for connecting the RRH 860 (wireless communication interface 863) to the base station device 850.
  • the connection interface 861 can also be a communication module for communication in the above high speed line.
  • the wireless communication interface 863 transmits and receives wireless signals via the antenna 840.
  • Wireless communication interface 863 can typically include, for example, RF circuitry 864.
  • the RF circuit 864 can include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 840.
  • the wireless communication interface 863 can include a plurality of RF circuits 864.
  • multiple RF circuits 864 can support multiple antenna elements.
  • FIG. 29 illustrates an example in which the wireless communication interface 863 includes a plurality of RF circuits 864, the wireless communication interface 863 may also include a single RF circuit 864.
  • the transceiver of the electronic device 500 can be implemented by the wireless communication interface 825. At least a portion of the functionality can also be implemented by controller 821.
  • the controller 821 may generate RRC signaling for the user equipment including the configuration for the beam failure recovery operation and generate a BFRQ response by performing the functions of the first generation unit 501 and the second generation unit 502.
  • FIG. 30 is a block diagram showing an example of a schematic configuration of a smartphone 900 to which the technology of the present disclosure can be applied.
  • the smart phone 900 includes a processor 901, a memory 902, a storage device 903, an external connection interface 904, an imaging device 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, one or more An antenna switch 915, one or more antennas 916, a bus 917, a battery 918, and an auxiliary controller 919.
  • the processor 901 can be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and the other layers of the smart phone 900.
  • the memory 902 includes a RAM and a ROM, and stores data and programs executed by the processor 901.
  • the storage device 903 may include a storage medium such as a semiconductor memory and a hard disk.
  • the external connection interface 904 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 900.
  • USB universal serial bus
  • the camera 906 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
  • Sensor 907 can include a set of sensors, such as measurement sensors, gyro sensors, geomagnetic sensors, and acceleration sensors.
  • the microphone 908 converts the sound input to the smartphone 900 into an audio signal.
  • the input device 909 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 910, and receives an operation or information input from a user.
  • the display device 910 includes screens such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smartphone 900.
  • the speaker 911 converts the audio signal output from the smartphone 900 into sound.
  • the wireless communication interface 912 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication.
  • Wireless communication interface 912 may generally include, for example, BB processor 913 and RF circuitry 914.
  • the BB processor 913 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs various types of signal processing for wireless communication.
  • RF circuitry 914 may include, for example, mixers, filters, and amplifiers, and transmit and receive wireless signals via antenna 916.
  • the wireless communication interface 912 can be a chip module on which the BB processor 913 and the RF circuit 914 are integrated. As shown in FIG. 30, the wireless communication interface 912 can include a plurality of BB processors 913 and a plurality of RF circuits 914.
  • the wireless communication interface 912 includes a plurality of BB processors 913 and a plurality of RF circuits 914
  • the wireless communication interface 912 may also include a single BB processor 913 or a single RF circuit 914.
  • wireless communication interface 912 can support additional types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes.
  • the wireless communication interface 912 can include a BB processor 913 and RF circuitry 914 for each wireless communication scheme.
  • Each of the antenna switches 915 switches the connection destination of the antenna 916 between a plurality of circuits included in the wireless communication interface 912, such as circuits for different wireless communication schemes.
  • Each of the antennas 916 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 912 to transmit and receive wireless signals.
  • smart phone 900 can include multiple antennas 916.
  • FIG. 30 illustrates an example in which the smartphone 900 includes a plurality of antennas 916, the smartphone 900 may also include a single antenna 916.
  • smart phone 900 can include an antenna 916 for each wireless communication scheme.
  • the antenna switch 915 can be omitted from the configuration of the smartphone 900.
  • the bus 917 sets the processor 901, the memory 902, the storage device 903, the external connection interface 904, the camera 906, the sensor 907, the microphone 908, the input device 909, the display device 910, the speaker 911, the wireless communication interface 912, and the auxiliary controller 919 to each other. connection.
  • Battery 918 provides power to various blocks of smart phone 900 shown in FIG. 30 via a feeder, which is partially shown as a dashed line in the figure.
  • the auxiliary controller 919 operates the minimum necessary function of the smartphone 900, for example, in a sleep mode.
  • the transceivers of the electronic devices 100 to 400 can be implemented by the wireless communication interface 912. At least a portion of the functionality can also be implemented by processor 901 or auxiliary controller 919.
  • the processor 901 or the auxiliary controller 919 can implement beam fail detection and selection of candidate beams to avoid ping-pong effects by performing functions of the beam failure detecting unit 101 and the selecting unit 102 by performing the first detecting unit 201 and the second detecting.
  • the function of the unit 202 is to select a beam with a high beam quality as a candidate beam, and perform prediction of beam failure and beam switching by performing functions of the detecting unit 301, the prediction unit 302, and the switching unit 303, by executing the determining unit 401, the detecting unit 402,
  • the function of the generating unit 403 and the response monitoring unit 404 implements a tail window mechanism.
  • the car navigation device 920 includes a processor 921, a memory 922, a global positioning system (GPS) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931, and a wireless device.
  • the processor 921 can be, for example, a CPU or SoC and controls the navigation functions and additional functions of the car navigation device 920.
  • the memory 922 includes a RAM and a ROM, and stores data and programs executed by the processor 921.
  • the GPS module 924 measures the position of the car navigation device 920 (such as latitude, longitude, and altitude) using GPS signals received from GPS satellites.
  • Sensor 925 can include a set of sensors, such as a gyro sensor, a geomagnetic sensor, and an air pressure sensor.
  • the data interface 926 is connected to, for example, the in-vehicle network 941 via a terminal not shown, and acquires data (such as vehicle speed data) generated by the vehicle.
  • the content player 927 reproduces content stored in a storage medium such as a CD and a DVD, which is inserted into the storage medium interface 928.
  • the input device 929 includes, for example, a touch sensor, a button or a switch configured to detect a touch on the screen of the display device 930, and receives an operation or information input from a user.
  • the display device 930 includes a screen such as an LCD or OLED display, and displays an image of the navigation function or reproduced content.
  • the speaker 931 outputs the sound of the navigation function or the reproduced content.
  • the wireless communication interface 933 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication.
  • Wireless communication interface 933 may typically include, for example, BB processor 934 and RF circuitry 935.
  • the BB processor 934 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs various types of signal processing for wireless communication.
  • the RF circuit 935 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 937.
  • the wireless communication interface 933 can also be a chip module on which the BB processor 934 and the RF circuit 935 are integrated. As shown in FIG.
  • the wireless communication interface 933 may include a plurality of BB processors 934 and a plurality of RF circuits 935.
  • FIG. 31 illustrates an example in which the wireless communication interface 933 includes a plurality of BB processors 934 and a plurality of RF circuits 935, the wireless communication interface 933 may also include a single BB processor 934 or a single RF circuit 935.
  • the wireless communication interface 933 can support another type of wireless communication scheme, such as a short-range wireless communication scheme, a near-field communication scheme, and a wireless LAN scheme.
  • the wireless communication interface 933 may include a BB processor 934 and an RF circuit 935 for each wireless communication scheme.
  • Each of the antenna switches 936 switches the connection destination of the antenna 937 between a plurality of circuits included in the wireless communication interface 933, such as circuits for different wireless communication schemes.
  • Each of the antennas 937 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the wireless communication interface 933 to transmit and receive wireless signals.
  • car navigation device 920 can include a plurality of antennas 937.
  • FIG. 31 shows an example in which the car navigation device 920 includes a plurality of antennas 937, the car navigation device 920 may also include a single antenna 937.
  • car navigation device 920 can include an antenna 937 for each wireless communication scheme.
  • the antenna switch 936 can be omitted from the configuration of the car navigation device 920.
  • Battery 938 provides power to various blocks of car navigation device 920 shown in FIG. 31 via feeders, which are partially shown as dashed lines in the figures. Battery 938 accumulates power supplied from the vehicle.
  • the transceivers of the electronic devices 100 to 400 can be implemented by the wireless communication interface 912. At least a portion of the functionality can also be implemented by processor 901 or auxiliary controller 919.
  • the processor 901 or the auxiliary controller 919 can implement beam fail detection and selection of candidate beams to avoid ping-pong effects by performing functions of the beam failure detecting unit 101 and the selecting unit 102 by performing the first detecting unit 201 and the second detecting.
  • the function of the unit 202 is to select a beam with a high beam quality as a candidate beam, and perform prediction of beam failure and beam switching by performing functions of the detecting unit 301, the prediction unit 302, and the switching unit 303, by executing the determining unit 401, the detecting unit 402,
  • the function of the generating unit 403 and the response monitoring unit 404 implements a tail window mechanism. .
  • the technology of the present disclosure may also be implemented as an onboard system (or vehicle) 940 that includes one or more of the car navigation device 920, the in-vehicle network 941, and the vehicle module 942.
  • vehicle module 942 generates vehicle data such as vehicle speed, engine speed, and fault information, and outputs the generated data to the in-vehicle network 941.
  • the present invention also proposes a program product for storing an instruction code readable by a machine.
  • the instruction code is read and executed by a machine, the above-described method according to an embodiment of the present invention can be performed.
  • a storage medium for carrying a program product storing the above-described storage machine readable instruction code is also included in the disclosure of the present invention.
  • the storage medium includes, but is not limited to, a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and the like.
  • a program constituting the software is installed from a storage medium or a network to a computer having a dedicated hardware structure (for example, the general-purpose computer 3200 shown in FIG. 32), which is installed with various programs. At the time, it is possible to perform various functions and the like.
  • a central processing unit (CPU) 3201 executes various processes in accordance with a program stored in a read only memory (ROM) 3202 or a program loaded from a storage portion 3208 to a random access memory (RAM) 3203.
  • ROM read only memory
  • RAM random access memory
  • data required when the CPU 3201 executes various processes and the like is also stored as needed.
  • the CPU 3201, the ROM 3202, and the RAM 3203 are connected to each other via a bus 3204.
  • Input/output interface 3205 is also coupled to bus 3204.
  • the following components are connected to the input/output interface 3205: an input portion 3206 (including a keyboard, a mouse, etc.), an output portion 3207 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.),
  • the storage section 3208 (including a hard disk or the like), the communication section 3209 (including a network interface card such as a LAN card, a modem, etc.).
  • the communication section 3209 performs communication processing via a network such as the Internet.
  • the driver 3210 can also be connected to the input/output interface 3205 as needed.
  • a removable medium 3211 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like is mounted on the drive 3210 as needed, so that the computer program read therefrom is installed into the storage portion 3208 as needed.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 3211.
  • such a storage medium is not limited to the removable medium 3211 shown in FIG. 32 in which a program is stored and distributed separately from the device to provide a program to the user.
  • the removable medium 3211 include a magnetic disk (including a floppy disk (registered trademark)), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), and a magneto-optical disk (including a mini disk (MD) (registered) Trademark)) and semiconductor memory.
  • the storage medium may be a ROM 3202, a hard disk included in the storage portion 3208, and the like, in which programs are stored, and distributed to the user together with the device including them.
  • the present technology can also be implemented as follows.
  • An electronic device for wireless communication comprising:
  • the processing circuit is configured to:
  • the candidate beam is selected from the other beams using the first quality indicator of the beam and the second quality indicator different from the first quality indicator, the candidate beam being used for beam recovery after beam failure.
  • An electronic device for wireless communication comprising:
  • the processing circuit is configured to:
  • the beam quality of the other beams is detected, and the beam is selected as a candidate beam if the beam quality is higher than the second quality.
  • the second quality is higher than the first quality.
  • An electronic device for wireless communication comprising:
  • the processing circuit is configured to:
  • a prediction window is initiated in which the beam quality of the current serving beam is evaluated.
  • the beam quality is represented by one or more of: a block error rate of a physical downlink control channel, a reference signal received power, and a reference signal reception quality.
  • An electronic device for wireless communication comprising:
  • the processing circuit is configured to:
  • the tail window is opened and the beam quality of the new beam is detected in the tail window.
  • the processing circuit is further configured to generate a beam failure recovery request when detecting that the number of times the beam quality of the current serving beam is below a predetermined threshold exceeds a first number of times;
  • the processing circuit is further configured to generate a new beam failure recovery request in the tail window when detecting that the number of times the beam quality of the new beam is below a predetermined threshold exceeds a second number of times,
  • the first number of times is greater than the second number of times.
  • the processing circuit is further configured to turn on a beam failure recovery window of a first length to wait for the beam failure recovery request response after the beam failure recovery request is sent;
  • the processing circuit is further configured to enable a beam failure recovery window of a second length to wait for the beam failure recovery request response after the new beam failure recovery request is sent,
  • first length is greater than the second length.
  • An electronic device for wireless communication comprising:
  • the processing circuit is configured to:
  • the configuration comprises one or more of the following: a plurality of beam quality thresholds for beam quality assessment, a first beam quality threshold for candidate beam selection and a second beam quality threshold for candidate beam selection Timer length, the length of the prediction window used for beam quality evaluation.
  • a method for wireless communication comprising:
  • the candidate beam is selected from the other beams using the first quality indicator of the beam and the second quality indicator different from the first quality indicator, the candidate beam being used for beam recovery after beam failure.
  • a method for wireless communication comprising:
  • the beam quality of the other beams is detected, and the beam is selected as a candidate beam if the beam quality is higher than the second quality.
  • the second quality is higher than the first quality.
  • a method for wireless communication comprising:
  • a prediction window is initiated in which the beam quality of the current serving beam is evaluated.
  • a method for wireless communication comprising:
  • the tail window is opened and the beam quality of the new beam is detected in the tail window.
  • a method for wireless communication comprising:
  • the configuration comprises one or more of the following: a plurality of beam quality thresholds for beam quality assessment, a first beam quality threshold for candidate beam selection and a second beam quality threshold for candidate beam selection Timer length, the length of the prediction window used for beam quality evaluation.
  • a computer readable storage medium having stored thereon computer executable instructions, when the computer executable instructions are executed, for performing according to any one of (37) to (41) The method of wireless communication.

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Abstract

一种用于无线通信的电子设备、方法和计算机可读存储介质，电子设备包括：处理电路，被配置为：使用波束的第一质量指标对当前服务波束进行波束失败检测；以及使用波束的第一质量指标和不同于第一质量指标的第二质量指标从其他波束中选择候选波束，候选波束用于波束失败后的波束恢复。

Description

用于无线通信的电子设备和方法、计算机可读存储介质
本申请要求于2018年5月17日提交中国专利局、申请号为201810473952.3、发明名称为“用于无线通信的电子设备和方法、计算机可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，具体地涉及新无线电(New Radio，NR)通信中的波束管理技术。更具体地，涉及一种用于无线通信的电子设备和方法以及计算机可读存储介质。
背景技术
新无线电(New Radio，NR)作为针对长期演进(Long Term Evolution，LTE)的下一代的无线接入方式，是与LTE不同的无线接入技术(Radio Access Technology，RAT)。NR是能够应对包括增强移动宽带(Enhanced mobile broadband，eMBB)、大规模机器类型通信(Massive machine type communications，mMTC)以及超可靠和低延迟通信(Ultra reliable and low latency communications，URLLC)的各种用例(use case)的接入技术。
在NR中还可以采用多输入多输出(Multiple In Multiple Output，MIMO)技术，在NR MIMO中，波束管理对于保证通信质量而言非常重要。例如，当正在服务于用户设备的波束的波束质量下降到一定程度时，该波束变得不再可用，认为发生了波束失败(beam failure)，此时需要波束失败恢复机制来重新分配用于该用户设备的数据传输的新波束。
发明内容
在下文中给出了关于本发明的简要概述，以便提供关于本发明的某些方面的基本理解。应当理解，这个概述并不是关于本发明的穷举性概 述。它并不是意图确定本发明的关键或重要部分，也不是意图限定本发明的范围。其目的仅仅是以简化的形式给出某些概念，以此作为稍后论述的更详细描述的前序。
根据本申请的一个方面，提供了一种用于无线通信的电子设备，包括：处理电路，被配置为：使用波束的第一质量指标对当前服务波束进行波束失败检测；以及使用波束的第一质量指标和不同于第一质量指标的第二质量指标从其他波束中选择候选波束，该候选波束用于波束失败后的波束恢复。
根据本申请的一个方面，提供了一种用于无线通信的方法，包括：使用波束的第一质量指标对当前服务波束进行波束失败检测；以及使用波束的第一质量指标和不同于第一质量指标的第二质量指标从其他波束中选择候选波束，该候选波束用于波束失败后的波束恢复。
根据本申请的该方面的电子设备和方法基于包括波束失败检测时所用的质量指标在内的两个质量指标进行候选波束选择，能够有效地避免乒乓效应的出现，降低波束失败恢复引起的时延。
根据本申请的另一个方面，提供了一种用于无线通信的电子设备，包括：处理电路，被配置为：对当前服务波束的波束质量进行检测，并且在波束质量低于第一质量的情况下确定发生波束失败；以及在发生波束失败的情况下，对其他波束的波束质量进行检测，并且在波束质量高于第二质量的情况下将该波束选择作为候选波束，其中，第二质量高于第一质量。
根据本申请的另一个方面，提供了一种用于无线通信的方法，包括：对当前服务波束的波束质量进行检测，并且在波束质量低于第一质量的情况下确定发生波束失败；以及在发生波束失败的情况下，对其他波束的波束质量进行检测，并且在波束质量高于第二质量的情况下将该波束选择作为候选波束，其中，第二质量高于第一质量。
根据本申请的该方面的电子设备和方法通过以比进行波束失败检测时的波束质量要求更高的波束质量要求来选择候选波束，可以有效地减小波束失败恢复所带来的时延和避免乒乓效应。
根据本申请的另一个方面，提供了一种用于无线通信的电子设备， 包括：处理电路，被配置为：检测当前服务波束的波束质量；以及在所检测的波束质量处于特定范围内时，启动预测窗，在该预测窗内评估当前服务波束的波束质量。
根据本申请的另一个方面，提供了一种用于无线通信的方法，包括：检测当前服务波束的波束质量；以及在所检测的波束质量处于特定范围内时，启动预测窗，在该预测窗内评估当前服务波束的波束质量。
根据本申请的该方面的电子设备和方法通过设置预测窗，可以对当前服务波束的波束质量进行预估，从而可以快速确定要执行的切换或恢复操作，降低时延。
根据本申请的另一个方面，提供了一种用于无线通信的电子设备，包括：处理电路，被配置为：基于来自基站的波束失败恢复请求响应中包括的有关尾窗的信息确定要开启的尾窗的长度；以及开启尾窗并在尾窗中检测新波束的波束质量。
根据本申请的另一个方面，提供了一种用于无线通信的方法，包括：基于来自基站的波束失败恢复请求响应中包括的有关尾窗的信息确定要开启的尾窗的长度；以及开启尾窗并在尾窗中检测新波束的波束质量。
根据本申请的该方面的电子设备和方法通过在尾窗中检测新波束的波束质量，可以在新波束再次发生失败时快速进行波束恢复，降低时延。
根据本申请的另一个方面，提供了一种用于无线通信的电子设备，包括：处理电路，被配置为：生成针对用户设备的波束失败恢复操作的配置并将该配置包括在无线资源控制信令中以提供给用户设备；以及响应于来自用户设备的波束失败恢复请求生成波束失败恢复请求响应，其中，所述配置包括以下中的一个或多个：用于波束质量评估的多个波束质量阈值，用于候选波束选择的第一波束质量阈值和第二波束质量阈值，用于候选波束选择的定时器长度，用于波束质量评估的预测窗长度。
根据本申请的另一个方面，提供了一种用于无线通信的方法，包括：生成针对用户设备的波束失败恢复操作的配置并将该配置包括在无线资源控制信令中以提供给用户设备；以及响应于来自用户设备的波束失败恢复请求生成波束失败恢复请求响应，其中，所述配置包括以下中的一个或多个：用于波束质量评估的多个波束质量阈值，用于候选波束选择 的第一波束质量阈值和第二波束质量阈值，用于候选波束选择的定时器长度，用于波束质量评估的预测窗长度。
根据本申请的该方面的电子设备和方法通过对用户设备的波束失败恢复操作进行配置，可以实现高效率、低时延的波束失败恢复。
依据本发明的其它方面，还提供了用于实现上述用于无线通信的方法的计算机程序代码和计算机程序产品以及其上记录有该用于实现上述用于无线通信的方法的计算机程序代码的计算机可读存储介质。
通过以下结合附图对本发明的优选实施例的详细说明，本发明的这些以及其他优点将更加明显。
附图说明
为了进一步阐述本发明的以上和其它优点和特征，下面结合附图对本发明的具体实施方式作进一步详细的说明。所述附图连同下面的详细说明一起包含在本说明书中并且形成本说明书的一部分。具有相同的功能和结构的元件用相同的参考标号表示。应当理解，这些附图仅描述本发明的典型示例，而不应看作是对本发明的范围的限定。在附图中：
图1示出了根据本申请的一个实施例的用于无线通信的电子设备的功能模块框图；
图2示出了UE侧执行的波束失败恢复机制的流程的示意图；
图3示出了从4个波束中选择2个候选波束的示意性示例；
图4示出了从4个波束中选择2个候选波束的另一个示意性示例；
图5示出了从4个波束中选择2个候选波束的另一个示意性示例；
图6示出了根据本申请的另一个实施例的用于无线通信的电子设备的功能模块框图；
图7示出了在采用误块率作为波束质量的指标的情况下，候选波束的选择的示意图；
图8示出了在采用参考信号接收功率作为波束质量的指标的情况下，候选波束的选择的示意图；
图9示出了根据本申请的另一个实施例的用于无线通信的电子设备 的功能模块框图；
图10示出了设置两个阈值的情况的示例；
图11示出了设置三个阈值的情况的示例；
图12示出了根据本申请的另一个实施例的用于无线通信的电子设备的功能模块框图；
图13示出了波束质量的N次检测的示意图；
图14示出了预测单元执行的操作的一个示例的流程图；
图15使出了波束质量的检测值的一个示例；
图16示出了根据本申请的另一个实施例的用于无线通信的电子设备的功能模块框图；
图17示出了尾窗的一个示例；
图18示出了本申请的尾窗机制的示意性流程图；
图19示出了根据本申请的另一个实施例的用于无线通信的电子设备的功能模块框图；
图20示出了基站与用户设备之间的信息流程的一个示例；
图21示出了基站与用户设备之间的信息流程的另一个示例；
图22示出了基站与用户设备之间的信息流程的另一个示例；
图23示出了根据本申请的一个实施例的用于无线通信的方法的流程图；
图24示出了根据本申请的另一个实施例的用于无线通信的方法的流程图；
图25示出了根据本申请的另一个实施例的用于无线通信的方法的流程图；
图26示出了根据本申请的另一个实施例的用于无线通信的方法的流程图；
图27示出了根据本申请的另一个实施例的用于无线通信的方法的流程图；
图28是示出可以应用本公开内容的技术的eNB或gNB的示意性配置的第一示例的框图；
图29是示出可以应用本公开内容的技术的eNB或gNB的示意性配置的第二示例的框图；
图30是示出可以应用本公开内容的技术的智能电话的示意性配置的示例的框图；
图31是示出可以应用本公开内容的技术的汽车导航设备的示意性配置的示例的框图；以及
图32是其中可以实现根据本发明的实施例的方法和/或装置和/或系统的通用个人计算机的示例性结构的框图。
具体实施方式
在下文中将结合附图对本发明的示范性实施例进行描述。为了清楚和简明起见，在说明书中并未描述实际实施方式的所有特征。然而，应该了解，在开发任何这种实际实施例的过程中必须做出很多特定于实施方式的决定，以便实现开发人员的具体目标，例如，符合与系统及业务相关的那些限制条件，并且这些限制条件可能会随着实施方式的不同而有所改变。此外，还应该了解，虽然开发工作有可能是非常复杂和费时的，但对得益于本公开内容的本领域技术人员来说，这种开发工作仅仅是例行的任务。
在此，还需要说明的一点是，为了避免因不必要的细节而模糊了本发明，在附图中仅仅示出了与根据本发明的方案密切相关的设备结构和/或处理步骤，而省略了与本发明关系不大的其他细节。
<第一实施例>
图1示出了根据本申请的一个实施例的用于无线通信的电子设备100的功能模块框图，如图1所示，电子设备100包括：波束失败检测单元101，被配置为使用波束的第一质量指标对当前服务波束进行波束失败检测；以及选择单元102，被配置为使用波束的第一质量指标和不同于第 一质量指标的第二质量指标从其他波束中选择候选波束，该候选波束用于波束失败后的波束恢复。
其中，波束失败检测单元101和选择单元102可以由一个或多个处理电路实现，该处理电路例如可以实现为芯片。并且，应该理解，图1中所示的装置中的各个功能单元仅是根据其所实现的具体功能而划分的逻辑模块，而不是用于限制具体的实现方式。这同样适用于随后要描述的其他电子设备的示例。
电子设备100例如可以设置在用户设备(UE)侧或者可通信地连接到UE。这里，还应指出，电子设备100可以以芯片级来实现，或者也可以以设备级来实现。例如，电子设备100可以工作为用户设备本身，并且还可以包括诸如存储器、收发器(图中未示出)等外部设备。存储器可以用于存储用户设备实现各种功能需要执行的程序和相关数据信息。收发器可以包括一个或多个通信接口以支持与不同设备(例如，基站、其他用户设备等等)间的通信，这里不具体限制收发器的实现形式。这同样适用于随后关于用户设备侧的电子设备的其他配置示例的描述。
UE侧执行的波束失败恢复机制例如可以包括波束失败检测、候选波束识别、波束失败恢复请求发送和波束失败恢复请求响应获取几个阶段，如图2所示。其中，在波束失败检测阶段，UE对当前服务波束的波束质量进行检测以判断其是否满足波束失败触发条件；在候选波束识别阶段，从其他波束中选择可以用作当前服务波束的替选的候选波束；在波束失败恢复请求发送阶段，向基站(或收发点，以下简单称为基站)发送波束失败恢复请求，该波束失败恢复请求中例如可以包括关于识别本UE和候选波束的信息；在波束失败恢复请求响应获取阶段，UE在特定时间窗(可以称为波束失败恢复窗)内监视来自基站的对波束失败恢复请求的响应，该响应例如可以包括如下中的一个或多个：对波束失败恢复的确认；更换新波束的时间，即在一定时间后基站和UE将同时更换到新波束；所更换的新波束的标识或指示等。
其中，在波束失败检测操作和候选波束选择操作中，均需要对波束质量进行评估。可用于波束质量评估的指标有多种，包括但不限于物理下行控制信道(Physical Downlink Control Channel，PDCCH)的误块率(Block Error Rate，BLER)、参考信号接收功率(Reference Signal Receiving Power，RSRP)等。参考信号例如为信道状态信息参考信号 (Channel Status Information Reference Signal，CSI-RS)。在用于波束失败检测的质量指标与用于候选波束选择的质量指标不同时，可能会存在乒乓效应。例如，所选择的候选波束的第二质量指标满足正常通信的质量要求，但是其第一质量指标却满足波束失败检测的触发条件，这将再一次触发波束失败恢复机制，从而增加不必要的时延。
在本实施例中，波束失败检测单元101使用波束的第一质量指标对当前服务波束进行波束失败检测，而选择单元102使用波束的该第一质量指标和不同于该第一质量指标的第二质量指标来从其他波束中选择候选波束以用于波束恢复。例如，第一质量指标为PDCCH的BLER，也称为假想(Hypothetical)PDCCH BLER，以下简称为BLER；第二质量指标为RSRP，也称为L1-RSRP。应该理解，虽然下文的一些描述中将会以此为示例，但是第一质量指标和第二质量指标的设置并不限于此。
甚至，在一些情况下，第一质量指标和第二质量指标也可以为相同的质量指标，比如均为BLER或者均为RSRP，这都不是限制性的。并且，本文中的第一、第二、……仅是为了区分的目的，而不存在任何顺序上的含义。
在一个示例中，选择单元102被配置为从第一质量指标满足第一预定条件的波束中选择第二质量指标满足第二预定条件且最优的一个或多个波束作为候选波束。
例如，当第一质量指标指示的波束质量高于第一预定质量时认为满足第一预定条件，当第二质量指标指示的波束质量高于第二预定质量时认为满足第二预定条件，其中，第一预定质量和第二预定质量可以实质上相等，也可以不相等。当波束质量越好时，该波束越优。
假设第一质量指标为BLER，第二质量指标为RSRP，波束失败检测单元101将当前服务波束的BLER与第一阈值比如1％相比较，如果BLER高于阈值，则认为发生波束失败。随后，选择单元102在选择候选波束时，不仅考虑候选波束的RSRP，还考虑候选波束的BLER。换言之，不仅要保证所选择的候选波束的RSRP高于第二阈值比如-105dBm，还要保证其BLER低于第一阈值比如1％。第一阈值和第二阈值所分别指示的波束质量可以认为基本上相当。
在本示例中，例如需要选择N个候选波束，其中N的值可以由基站 进行配置，选择单元从BLER低于第一阈值的波束中选择RSRP高于第二阈值并且RSRP最高的前N个波束作为候选波束。图3示出了从4个波束中选择2个候选波束的示意性示例。在图3中，所列出的4个波束的BLER均低于第一阈值并且按其RSRP降序排列，当N＝2时，选择波束1和波束2作为候选波束。应该理解，图3仅是一个示意性示例，并不构成对本申请的限制。
在另一个示例中，选择单元102被配置为从第二质量指标满足第二预定条件的波束中选择第一质量指标满足第一预定条件且最优的一个或多个波束作为候选波束。仍然以第一质量指标为BLER和第二质量指标为RSRP为例，选择单元102将从RSRP高于第二阈值的波束中选择BLER低于第一阈值且BLER最低的前N个波束作为候选波束。针对图3所示的示意性示例，选择单元102将选择BLER最低的波束3和波束4作为候选波束。
在又一个示例中，选择单元102被配置为针对第二质量指标满足第二预定条件的波束，按照第二质量指标指示的波束质量从高到低的次序，依次确定每一个波束的第一质量指标是否满足第一预定条件，并且将第一质量指标满足第一预定条件的波束选择作为一个候选波束，直到候选波束的数量达到要求为止。仍然以第一质量指标为BLER和第二质量指标为RSRP为例，选择单元102可以针对RSRP高于第二阈值的波束中RSRP最高的N个波束，计算其BLER，如果BLER低于第一阈值，则将对应的波束作为候选波束。图4示出了该示例中候选波束的选择的示意图。可以看出，在波束1和波束2满足条件的情况下，不需要计算波束3和波束4的BLER，从而减小了计算负荷。
另一方面，如果存在BLER高于第一阈值的波束，即无法获得N个候选波束，则继续计算RSRP较低的波束的BLER，直到获得N个候选波束为止。图5示出了在这种情况下的候选波束的选择的示意图。如图5所示，由于波束2的BLER高于阈值1％，因此，继续计算波束3的BLER。波束3的BLER低于阈值，从而选择波束1和波束3作为候选波束。
以上，选择单元102在进行候选波束选择时使用了针对第一质量指标的第一阈值，此外，也可以使用与第一阈值不同的第三阈值来进行基于第一质量指标的波束质量的评估。在这种情况下，选择单元102将波束的第一质量指标与第三阈值进行比较以及将波束的第二质量指标与第 二阈值进行比较来进行候选波束的选择。
例如，第三阈值所代表的波束质量可以优于第一阈值所代表的波束质量，第二阈值所代表的波束质量可以优于第一阈值所代表的波束质量。或者，也可以将第三阈值和第一阈值设置为相等，而第二阈值所代表的波束质量优于第一阈值所代表的波束质量。换言之，选择单元102可以以更高的波束质量要求来选择候选波束，以提高波束失败恢复后新波束的稳定性，降低延迟。
在第一质量指标和第二质量指标相同的情况下，可以在用于波束失败检测的第一阈值的基础上加上一个间隙(gap)值作为用于候选波束选择的第二阈值。例如，在第一质量指标和第二质量指标均为BLER的情况下，该gap值为负；在第一质量指标和第二质量指标均为RSRP的情况下，该gap值为正。
此外，选择单元102还被配置为在进行候选波束选择时设置定时器，以在该定时器的定时时长内对波束的第一质量指标和第二质量指标进行检测，并且在该定时时长内波束的第一质量指标和第二质量指标均满足作为候选波束的预定条件的情况下将该波束选择为候选波束。通过设置该定时器，可以确保所选择的候选波束的波束质量的稳定性，从而有效避免乒乓效应。定时器的定时时长例如可以称为候选波束检测窗。可以理解，在第一质量指标和第二质量指标不同的情况下，也可以分别针对第一质量指标和第二质量指标设置具有不同定时时长的定时器。
其中，关于第一阈值、第二阈值、第三阈值、候选波束检测窗的长度、gap值中的一个或多个的设置的信息可以经由无线资源控制(Radio Resource Control，RRC)信令从基站获得。
根据本实施例的电子设备基于包括波束失败检测时所用的质量指标在内的两个质量指标进行候选波束选择，能够有效地避免乒乓效应的出现，降低时延。
<第二实施例>
图6示出了根据本申请的另一个实施例的用于无线通信的电子设备200的功能模块框图，该电子设备200包括：第一检测单元201，被配置 为对当前服务波束的波束质量进行检测，并且在波束质量低于第一质量的情况下确定发生波束失败；以及第二检测单元202，被配置为在发生波束失败的情况下，对其他波束的波束质量进行检测，并且在波束质量高于第二质量的情况下将该波束选择作为候选波束，其中，第二质量高于第一质量。
类似地，第一检测单元201和第二检测单元202可以由一个或多个处理电路实现，该处理电路例如可以实现为芯片。并且，应该理解，图6中所示的装置中的各个功能单元仅是根据其所实现的具体功能而划分的逻辑模块，而不是用于限制具体的实现方式。类似地，电子设备200例如可以设置在用户设备(UE)侧或者可通信地连接到UE。
根据该实施例，由于第二质量高于第一质量，因此第二检测单元202所选择的候选波束的波束质量较高，可以避免乒乓效应的出现。
其中，波束质量可以用BLER或者RSRP表示。并且，第一检测单元201所使用的波束质量的表示方式和第二检测单元202所使用的波束质量的表示方式可以相同，也可以不同。
第二检测单元102还被配置为在进行候选波束选择时设置定时器，以在该定时器的定时时长内对波束的波束质量进行检测，并且在该定时时长内波束的波束质量高于第二质量的情况下将该波束选择为候选波束。
作为示例，图7示出了在均采用BLER作为波束质量的指标的情况下，候选波束的选择的示意图。其中，第一阈值对应于第一质量，第二阈值对应于第二质量，定时器的持续时段被称为候选波束检测窗。图8示出了在均采用RSRP作为波束质量的指标的情况下，候选波束的选择的示意图。
可以看出，第二阈值相当于第一阈值加上一个间隙(gap)。在质量指标均为BLER的情况下，该gap值为负；在质量指标均为RSRP的情况下，该gap值为正。
其中，关于第一质量、第二质量、定时器的定时时长(即候选波束检测窗的长度)、gap值等中的一个或多个的设置的信息可以经由无线资源控制(Radio Resource Control，RRC)信令从基站获得。
根据本申请的该方面的电子设备和方法通过以比进行波束失败检测时的波束质量要求更高的波束质量要求来选择候选波束，可以有效地减小波束失败恢复所带来的时延和避免乒乓效应。
<第三实施例>
图9示出了根据本申请的另一个实施例的用于无线通信的电子设备300的功能模块框图，该电子设备300包括：检测单元301，被配置为检测当前服务波束的波束质量；以及预测单元302，被配置为在所检测的波束质量处于特定范围内时，启动预测窗，在该预测窗内评估当前服务波束的波束质量。
其中，检测单元301和预测单元302可以由一个或多个处理电路实现，该处理电路例如可以实现为芯片。并且，应该理解，图9中所示的装置中的各个功能单元仅是根据其所实现的具体功能而划分的逻辑模块，而不是用于限制具体的实现方式。
电子设备300例如可以设置在用户设备(UE)侧或者可通信地连接到UE。这里，还应指出，电子设备300可以以芯片级来实现，或者也可以以设备级来实现。例如，电子设备300可以工作为用户设备本身，并且还可以包括诸如存储器、收发器(图中未示出)等外部设备。存储器可以用于存储用户设备实现各种功能需要执行的程序和相关数据信息。收发器可以包括一个或多个通信接口以支持与不同设备(例如，基站、其他用户设备等等)间的通信，这里不具体限制收发器的实现形式。
在NR所服务的多种场景中，存在对时延要求非常严格的场景。在本实施例中，为了进一步减小波束失败恢复或者波束切换所带来的时延，提出了设置预测窗的方案，以使得能够快速进行波束失败恢复或者波束切换，降低时延。
例如，当当前服务波束的波束质量下降到一定程度时，预测单元302启动预测窗，并在预测窗中继续检测当前服务波束的波束质量，以评估或预测当前服务波束是否会失败或继续变差。
其中，波束质量例如可以用如下中的一个或多个表示：PDCCH的BLER、RSRP、参考信号接收质量(Reference Signal Receiving Quality， RSRQ)。
在一个示例中，可以设置波束质量的多个阈值，其中，当波束质量低于阈值所指示的最差波束质量时，表示发生波束失败。当波束质量高于阈值所指示的最差波束质量但是低于维持优质的通信所需要的波束质量时，认为波束变坏，即波束质量很差但是链路有时可以工作。
例如，将特定范围设置为针对波束质量的多个阈值中的两个阈值之间的范围。当波束质量落在该特定范围内时，说明波束质量变坏并启动预测窗。图10示出了设置两个阈值的情况的示例，其中，波束质量用RSRP来衡量，但是应该理解，这并不是限制性的，也可以采用其他波束质量指标。在图10的示例中，波束质量由阈值1和阈值2划分为三个等级，其中，等级A质量最好，可以维持可靠的通信并且用户体验好；等级B质量较差，可以进行用户体验较差的通信；等级C质量最差，无法进行通信，当波束质量下降到等级C时，认为发生波束失败。其中，当波束质量下降到等级B时，启动预测窗，特定范围包括等级B所对应的RSRP范围。
此外，图11示出了设置三个阈值的情况的示例，其中，波束质量由阈值1、阈值2和阈值3划分为三个等级，其中，等级A质量最好，可以维持可靠的通信并且用户体验好；等级B质量较好，也可以维持较好的通信质量；等级C质量较差，可以进行用户体验较差的通信；等级D质量最差，无法进行通信，当波束质量下降到等级D时，认为发生波束失败。其中，当波束质量下降到等级C时，启动预测窗，特定范围包括等级C所对应的RSRP范围。
在上述示例中，限定特定范围的两个阈值中包括多个阈值中指示的波束质量最差的一个阈值。换言之，波束质量落在特定范围中表示波束质量变得较差并且存在波束失败的较大可能。相应地，预测单元302在预测窗中继续进行评估以确定波束变坏是偶然事件还是需要进行波束切换的指示。
在一个示例中，预测单元302被配置为在预测窗中检测到波束质量处于特定范围内的事件数超过预定值的情况下，确定当前服务波束的质量为差，并且生成波束切换请求比如Beam_Switch_request以发送至基站，即开启波束切换流程。
当在一次检测中检测到波束质量处于特定范围内时，将该检测作为一次检测到坏波束的事件，在预测窗内对这些事件进行计数，当计数值超过预定值时，认为波束质量变得很差，需要切换到波束质量较好的波束以继续通信。应该注意，在预测窗中，当检测到波束质量下降到低于阈值所指示的最差波束质量(比如在图10的示例中下降到等级C或者在图11的示例中下降到等级D)时，预测单元302将生成波束失败恢复请求以发送给基站，即，开启波束失败恢复流程。
相应地，图12示出了电子设备300的另一个功能模块框图，除了检测单元301和预测单元302之外，电子设备300还包括切换单元303，用于执行波束切换的相关操作。
例如，切换单元303被配置为在预测单元302确定当前服务波束的波束质量差的情况下，对其他波束的波束质量进行检测以选择作为切换目标的一个或多个候选波束，并且预测单元302将选择的候选波束的信息包括在波束切换请求中。此外，波束切换请求中还可以包括当前服务波束的标识和波束质量信息。
对于候选波束的选择，例如可以采用各种标准，这些标准可以由基站来预先配置。标准的示例如下：候选波束的波束质量高于特定范围所指示的波束质量上限，候选波束的波束质量比用于波束失败检测的阈值所对应的波束质量高预定值。
切换单元303还配置为在波束切换请求被发送之后启动波束切换窗，在该波束切换窗中监测来自基站的波束切换请求响应(比如Beam_Switch_request_Response)。该波束切换请求响应中例如包含以下中的一个或多个：对波束切换请求的确认；执行波束切换的时间，即在一定时间后基站和UE同时切换到新波束；以及要切换到的新波束的ID的信息等。
由于在确定要执行波束切换时，并未发生波束失败，即当前服务波束仍然可用，因此，波束切换请求和波束切换请求响应可以在当前服务波束上传输。
以上操作中使用的各个参数中的一个或多个的信息可以经由RRC信令来获取，这些参数例如包括：波束质量的多个阈值、特定范围、预测窗的大小、波束质量处于特定范围内的事件数、波束切换请求中上报 的候选波束的个数等。
在另一个示例中，预测单元302被配置为在预测窗中对当前服务波束的波束质量进行预定次数的检测，记录每一次检测的检测值，并基于所记录的检测值来预测当前服务波束是否将失败。其中，预定次数可以由基站来配置。在该示例中，预测单元302通过记录多次检测的检测值来观察波束质量的变化趋势从而预测是否会发生波束失败。
图13示出了波束质量的N次检测的示意图。在图13的示例中，通过测量周期性CSI-RS的RSRP来获得波束质量的检测值，其中，每5ms测量一次，波束质量的检测值用Q i(i＝1、2、……、N)表示。应该理解，这并不是限制性的，波束质量也可以用BLER表示。
例如，预测单元302被配置为通过将后一检测值与前一检测值的比值与特定参数相比较来确定当前服务波束的波束质量的变化趋势从而进行预测，其中，特定参数与特定范围的上下限和预定次数有关。
以图13为例，预测单元302计算
Figure PCTCN2019086354-appb-000001
并将
Figure PCTCN2019086354-appb-000002
与特定参数t进行比较。其中
Figure PCTCN2019086354-appb-000003
t1为特定范围的上限比如图10中的阈值1，t2为特定范围的下限比如图10中的阈值2，这是因为，如果波束质量在N个检测周期内从阈值1连续下降至阈值2，则波束质量的检测值可以看作是一个几何序列，在波束的RSRP每个检测周期都下降至前一检测周期的RSRP的t倍的情况下，在N个周期后，波束的RSRP将下降至阈值2。因此，如果
Figure PCTCN2019086354-appb-000004
则说明检测周期i中波束质量的下降符合RSRP在N个周期内下降到阈值2的趋势。此外，为了使得在波束质量下降迅速时计算结果也保持准确，t还可以设置为
Figure PCTCN2019086354-appb-000005
其中，δ表示在t2的基础上所微调的定值，在采用RSRP的情况下其取 值为正。
预测单元302还被配置为对变化趋势一致的比较进行计数，并且在该计数达到预定次数时预测当前服务波束将失败。例如，在上述示例中将对
Figure PCTCN2019086354-appb-000006
的比较进行计数，当计数达到N时，预测当前服务波束将失败，并且可以向基站发出波束失败恢复请求。
此外，考虑到可能出现波束质量的变化趋势不一致的情况，例如存在
Figure PCTCN2019086354-appb-000007
的情形(波束质量变好)，预测单元302还被配置为在变化趋势不一致时对预定次数进行调整，并且在计数达到调整后的预定次数时预测当前服务波束将失败。例如，预测单元302可以在预定次数上加上如下值来进行调整：变化趋势不一致的比较对应的前一检测值的序号与该前一检测值的在前接近检测值的序号之间的差，其中在前接近检测值为已经执行了比较的后一检测值与前一检测值之间的范围内包含所述变化趋势不一致的比较对应的后一检测值的情况下，所述已经执行了比较的后一检测值与前一检测值中的前一检测值。
另一方面，如果不存在在前接近检测值，说明变化趋势不一致的比较对应的后一检测值已经超过了特定范围所指示的波束质量的上限，则预测单元302将关闭预测窗，不再进行波束质量的预测和评估。
为了便于理解，图14示出了该示例中预测单元执行的操作的一个示例的流程图。在图14中，仍然以图13所示的检测值作为示例。在步骤S11中，对当前服务波束的波束质量进行检测，并且在步骤S12中判断波束质量是否降到阈值1以下，如果判断为是时，则启动预测窗，处理 进行到步骤S13。在S13中，计算
Figure PCTCN2019086354-appb-000008
并且判断
Figure PCTCN2019086354-appb-000009
是否成立，如果是，则进行到步骤S14，其中将i和计数count分别加1(其中，count的初始值为0)。随后进行到步骤S15，判断更新后的计数count是否达到预定次数N。如果判断为是，则确定发生波束失败，从而进行到步骤S19以向基站发送波束失败恢复请求。如果在步骤S15中判断为否，则返回至步骤S13继续进行计数。
另一方面，如果在步骤S13中判断为否，则处理进行到步骤S16。在步骤S16中，将Q i与在前的Q i-1、Q i-2、......、Q 1比较，如果发现Q i位于Q m和Q m+1之间，即存在这样的m，则执行步骤S17和S18，其中，i和计数count分别加1，将N变为N+i-m。图15示出了N＝4的情况下RSRP的检测值的一个示例。在图15中，初始N＝4，前两次比较均满足
Figure PCTCN2019086354-appb-000010
但是当i＝4时，波束质量突然提高到Q 1和Q 2之间。根据参照图14所示的流程，此时m＝1，因此N被调整为N＝4+4-1＝7。然后继续观察后续的检测值，并且在count＝7时确定count＝N，从而确定发生波束失败。应该理解，当波束质量在阈值1和阈值2之间反复波动时，可能会多次调整N，为了避免占用过多的缓存和计算资源，可以为N设置一个最大值N max。当N>N max时，则关闭预测窗，结束流程。
此外，如果在步骤S16中未找到这样的m，说明Q i变得高于阈值1，此时关闭预测窗，流程结束。
以上以RSRP作为波束质量的指标进行了描述，但是以上描述同样适用于其他波束质量指标比如BLER，仅需要对一些比较的规则作相应的调整即可。并且，在本实施例中虽然未具体描述，但是如第一实施例和第二实施例中所述，在确定发生波束失败时，UE侧还需要进行候选波束的选择，并将候选波束的相关信息包含在所发送的波束失败恢复请求中。
以上操作中使用的各个参数中的一个或多个的信息可以经由RRC信令来获取，这些参数例如包括：波束质量的多个阈值、特定范围、预测窗的大小、在预测窗中检测波束质量的预定次数N、调整后预定次数N的最大值、波束切换请求中上报的候选波束的个数等。
根据本实施例的电子设备和方法通过设置预测窗，可以对当前服务波束的波束质量进行预估，从而可以快速确定要执行的切换或恢复操作，降低时延。
<第四实施例>
图16使出了根据本申请的一个实施例的用于无线通信的电子设备400的功能模块框图，如图16所示，电子设备400包括：确定单元401，被配置为基于来自基站的波束失败恢复请求响应中包括的有关尾窗的信息确定要开启的尾窗的长度；以及检测单元402，被配置为开启尾窗并在尾窗中检测新波束的波束质量。
其中，确定单元401和检测单元402可以由一个或多个处理电路实现，该处理电路例如可以实现为芯片。并且，应该理解，图16中所示的装置中的各个功能单元仅是根据其所实现的具体功能而划分的逻辑模块，而不是用于限制具体的实现方式。
电子设备400例如可以设置在用户设备(UE)侧或者可通信地连接到UE。这里，还应指出，电子设备400可以以芯片级来实现，或者也可以以设备级来实现。例如，电子设备400可以工作为用户设备本身，并且还可以包括诸如存储器、收发器(图中未示出)等外部设备。存储器可以用于存储用户设备实现各种功能需要执行的程序和相关数据信息。收发器可以包括一个或多个通信接口以支持与不同设备(例如，基站、其他用户设备等等)间的通信，这里不具体限制收发器的实现形式。
例如，在UE快速移动或快速旋转的场景下，波束失败恢复后的新波束可能会短时间内再次失败，即波束质量下降到波束失败检测阈值以下。此时需要再次触发波束失败恢复机制，UE需要等待同样长的波束恢复时延，这会导致较差的用户体验。
在本实施例中，提出了尾窗的概念。具体地，当波束恢复成功比如新波束的波束质量达到可以正常工作的水平时，仍然继续监视该新波束一段时间，这段时间称为尾窗。如果在尾窗内再次发生波束失败，将会触发较快的波束恢复机制。
例如，如图16中的一个虚线框所示，电子设备400还包括：生成单元403，被配置为在检测到当前服务波束的波束质量低于预定阈值的次数超过第一次数时，生成波束失败恢复请求；以及在尾窗中在检测到新波束的波束质量低于预定阈值的次数超过第二次数时，生成新的波束失败恢复请求，其中，第一次数大于第二次数。
如前所述，在波束失败检测中，如果连续检测到波束质量低于预定阈值的M个事件，则认为发生波束失败，从而生成波束失败恢复请求。生成单元401针对第一次发生波束失败的情形和在波束失败恢复后的尾窗中再次发生波束失败的情形设置不同的M，其中，针对尾窗中再次发生波束失败的情形设置较小的M，从而可以降低在频繁发生波束失败的情况下波束恢复的时延。应该理解，当连续多次发生波束失败恢复时，可以每次都减小M，即用于后一次波束失败检测的M小于用于前一次波束失败检测的M，直到达到规定的M的最小值为止。
可替选地/附加地，如图16中的另一个虚线框所示，电子设备400还包括：响应监视单元404，被配置为在波束失败恢复请求被发送后开启第一长度的波束失败恢复窗口以等待波束失败恢复请求响应；以及在新的波束失败恢复请求被发送后开启第二长度的波束失败恢复窗口以等待波束失败恢复请求响应，其中，第一长度大于第二长度。
如前所述，在向基站发送波束失败恢复请求后，UE将在一定时间内监视来自基站的响应，该一定时间可以被称为波束失败恢复窗。响应监视单元404针对第一次发生波束失败的情形和在尾窗中再次发生波束失败的情形开启不同长度的波束失败恢复窗，其中，针对尾窗中再次发生波束失败的情形开启长度较短的波束失败恢复窗，从而可以降低在频繁 发生波束失败的情况下波束恢复的时延。其中，第一长度和第二长度可以以时隙为单位，并且第一长度和第二长度可以由基站来设置。应该理解，当连续多次发生波束失败恢复时，可以每次都减小波束失败恢复窗的长度，即后一次的波束失败恢复窗的长度小于前一次波束失败恢复窗的长度，直到达到规定的波束失败恢复窗的长度的最小值为止。
为了便于理解，图17示出了尾窗的一个示例。其中，在第一次波束失败恢复中，在波束失败检测阶段，当检测到M1个连续的波束失败事件时，认为发生波束失败，并且向基站发送波束失败恢复请求(BFRQ)，随后在长度为T1ms的波束失败恢复窗中监听并接收来自基站的BFRQ响应。在新波束正常工作后，开启尾窗，在尾窗中又发生了第二次波束失败恢复。在第二波束失败恢复中，在波束失败检测阶段检测到M2个连续的波束失败事件即认为发生波束失败并向基站发送BFRQ，其中，M2<M1,。此外，用于监听和接收来自基站的BFRQ响应的波束失败恢复窗的长度也减小为T2ms，其中T2<T1。虽然图17中未示出，但是应该理解，在第二次波束失败恢复完成后，还可以继续开启尾窗，并且进一步减小M2和T2。
相应地，图18示出了本实施例的尾窗机制的示意性流程图。其中，UE在S21中检测波束质量并且发现波束质量下降到阈值以下，然后在S22中判断是否发生波束失败，即判断波束失败事件的数目是否超过最大波束失败事件数目M。如果判断为否，则返回S21继续检测，否则进行至S23，向基站发送BFRQ。随后在S24中判断在波束失败恢复窗中是否接收到来自基站的BFRQ响应，如果未接收到，则进行至S27以通知高层进行另外的处理。如果接收到BFRQ响应，则进行至步骤S25，开启尾窗并在尾窗中监视新波束的波束质量是否下降到阈值以下。如果监视结果为否，则进行至步骤S28，波束恢复成功。如果监视结果为是，则改变波束失败检测中的最大波束失败事件数目M和波束失败恢复窗的大小T并返回至步骤S22以进行波束失败检测，随后重复下面的各个步骤。
此外，在一个示例中，生成单元403还被配置为生成开启尾窗请求(比如Open_Tail_Window_Request)，以与波束失败恢复请求同时发送给基站。即，尾窗的设置信息可以是响应于UE的请求而发送的。相应地，来自基站的有关尾窗的信息例如可以包括如下中的一个或多个：开 启尾窗的指示、尾窗的长度、最大波束失败事件数目、尾窗中波束失败恢复窗的长度等。
根据本申请的该方面的电子设备和方法通过在尾窗中检测新波束的波束质量，可以在新波束再次发生失败时快速进行波束恢复，降低时延。
<第五实施例>
图19示出了根据本申请的另一个实施例的电子设备500的功能模块框图，如图19所示，电子设备500包括：第一生成单元501，被配置为生成针对用户设备的波束失败恢复操作的配置并将该配置包括在无线资源控制信令中以提供给用户设备；以及第二生成单元502，被配置为响应于来自用户设备的波束失败恢复请求生成波束失败恢复请求响应，其中，所述配置包括以下中的一个或多个：用于波束质量评估的多个波束质量阈值，用于候选波束选择的第一波束质量阈值和第二波束质量阈值，用于候选波束选择的定时器长度，用于波束质量评估的预测窗长度。
其中，第一生成单元501和第二生成单元502可以由一个或多个处理电路实现，该处理电路例如可以实现为芯片。并且，应该理解，图19中所示的装置中的各个功能单元仅是根据其所实现的具体功能而划分的逻辑模块，而不是用于限制具体的实现方式。
电子设备500例如可以设置在基站侧或者可通信地连接到基站。这里，还应指出，电子设备500可以以芯片级来实现，或者也可以以设备级来实现。例如，电子设备500可以工作为基站本身，并且还可以包括诸如存储器、收发器(未示出)等外部设备。存储器可以用于存储基站实现各种功能需要执行的程序和相关数据信息。收发器可以包括一个或多个通信接口以支持与不同设备(例如，用户设备、其他基站等等)间的通信，这里不具体限制收发器的实现形式。
本实施例中的电子设备500可以与前述实施例中的电子设备100至400中的一个或多个对应地提供RRC配置信令和波束失败恢复请求(BFRQ)响应。有关RRC中关于波束失败恢复操作的配置在第一至第四实施例中已经给出了详细的描述，在此不再重复。
此外，第二生成单元502还被配置为针对来自用户设备的波束切换 请求生成波束切换请求响应。波束切换请求响应中例如包括对波束切换请求的确认或者要切换到的新波束的ID的信息等。
第二生成单元502还可以在BFRQ响应中包括关于尾窗的长度的信息，用户设备在该尾窗中检测新波束的波束质量。
根据本实施例的电子设备和方法通过对用户设备的波束失败恢复操作进行配置，可以实现高效率、低时延的波束失败恢复。
为了便于理解，图20示出了基站与用户设备之间的用于波束切换的信息流程。如图20所示，首先，基站向用户设备发送RRC配置，RRC配置中可以包括与波束切换有关的预测窗的大小、多个阈值的设置等，UE基于该配置对波束质量进行检测并且发现波束质量下降到由阈值限定的特定范围内，此时UE开启预测窗，如果在预测窗中检测到波束变为坏波束，则向基站发送波束切换请求，其中可以包括作为切换目标的候选波束的信息比如ID和波束质量等，还可以包括当前的坏波束的ID和波束质量等。基站响应于该波束切换请求向用户设备发送波束切换请求响应，其中包括对波束切换请求的确认。用户设备基于该波束切换请求响应切换到候选波束。
作为对比，图21示出了基站与用户设备之间的用于波束恢复的信息流程。如图21所示，首先，基站向用户设备发送RRC配置，RRC配置中可以包括与波束失败检测有关的参数、候选波束的选择有关的参数，也可以包括上述与波束切换有关的参数，UE基于该配置对波束质量进行检测并且发现发生波束失败或者预测到发生波束失败(例如，采用第三实施例中的方案)，此时UE向基站发送波束失败恢复请求，其中可以包括候选波束的信息比如ID和波束质量等。基站响应于该波束失败恢复请求向用户设备发送波束失败恢复请求响应，其中包括对波束失败恢复请求的确认。用户设备基于该波束失败恢复请求响应切换到候选波束。
此外，图22还示出了在设置尾窗的情况下基站与用户设备之间的信息流程的一个示例的图。其中，用户设备在向基站发送BFRQ时还发送开启尾窗请求，基站响应于这些请求向用户设备发送BFRQ响应。用户设备切换到新波束，并且在尾窗中对新波束的波束质量进行检测。在再次发现发生波束失败的情况下，再次向基站BFRQ时和开启尾窗请求并接收来自基站的BFRQ响应，如此反复执行。
应该注意，图20至图22中的信息流程仅是示意性的，并不对本申请构成限制。
<第六实施例>
在上文的实施方式中描述用于无线通信的电子设备的过程中，显然还公开了一些处理或方法。下文中，在不重复上文中已经讨论的一些细节的情况下给出这些方法的概要，但是应当注意，虽然这些方法在描述用于无线通信的电子设备的过程中公开，但是这些方法不一定采用所描述的那些部件或不一定由那些部件执行。例如，用于无线通信的电子设备的实施方式可以部分地或完全地使用硬件和/或固件来实现，而下面讨论的用于无线通信的方法可以完全由计算机可执行的程序来实现，尽管这些方法也可以采用用于无线通信的电子设备的硬件和/或固件。
图23示出了根据本申请的一个实施例的用于无线通信的方法的流程图，该方法包括：使用波束的第一质量指标对当前服务波束进行波束失败检测(S31)；以及使用波束的第一质量指标和不同于第一质量指标的第二质量指标从其他波束中选择候选波束，该候选波束用于波束失败后的波束恢复(S32)。
该方法在选择候选波束时采用两种质量指标，以使得在用于波束失败检测的波束质量指标和用于候选波束的选择的波束质量指标不同时避免出现乒乓效应，减少波束失败恢复的时延。该方法对应于第一实施例中所描述的装置100，其具体细节可参见以上相应位置的描述，在此不再重复。
图24示出了根据本申请的另一个实施例的用于无线通信的方法，该方法包括：对当前服务波束的波束质量进行检测，并且在波束质量低于第一质量的情况下确定发生波束失败(S41)；以及在发生所述波束失败的情况下，对其他波束的波束质量进行检测，并且在波束质量高于第二质量的情况下将该波束选择作为候选波束(S42)，其中，第二质量高于所述第一质量。
该方法通过在选择候选波束时适当地提高波束质量的门限，可以避免出现乒乓效应，减少波束失败恢复的时延。该方法对应于第二实施例中所描述的装置200，其具体细节可参见以上相应位置的描述，在此不再 重复。
图25示出了根据本申请的另一个实施例的用于无线通信的方法，该方法包括：检测当前服务波束的波束质量(S51)；以及在所检测的波束质量处于特定范围内时，启动预测窗，在所述预测窗内评估所述当前服务波束的波束质量(S52)。
该方法通过设置预测窗可以在服务波束的波束质量出现一定程度的下降时预测可能出现的波束失败，从而及时地进行波束切换或波束恢复，降低时延。该方法对应于第三实施例中所描述的装置300，其具体细节可参见以上相应位置的描述，在此不再重复。
图26示出了根据本申请的另一个实施例的用于无线通信的方法，该方法包括：基于来自基站的波束失败恢复请求响应中包括的有关尾窗的信息确定要开启的尾窗的长度(S61)；以及开启尾窗并在尾窗中检测新波束的波束质量(S62)。
该方法通过设置尾窗来实现频繁发生的波束失败的快速恢复，降低了时延。该方法对应于第四实施例中所描述的装置400，其具体细节可参见以上相应位置的描述，在此不再重复。
图27示出了根据本申请的另一个实施例的用于无线通信的方法，该方法包括：生成针对用户设备的波束失败恢复操作的配置并将该配置包括在RRC信令中以提供给用户设备(S71)；以及响应于来自用户设备的波束失败恢复请求生成波束失败恢复请求响应(S72)，其中，所述配置包括以下中的一个或多个：用于波束质量评估的多个波束质量阈值，用于候选波束选择的第一波束质量阈值和第二波束质量阈值，用于候选波束选择的定时器长度，用于波束质量评估的预测窗长度。
该方法通过对用户设备的波束失败恢复操作进行配置，可以实现高效率、低时延的波束失败恢复。该方法对应于第五实施例中所描述的装置500，其具体细节可参见以上相应位置的描述，在此不再重复。
注意，上述各个方法可以结合或单独使用。
本公开内容的技术能够应用于各种产品。
例如，电子设备500可以被实现为各种基站。基站可以被实现为任 何类型的演进型节点B(eNB)或gNB(5G基站)。eNB例如包括宏eNB和小eNB。小eNB可以为覆盖比宏小区小的小区的eNB，诸如微微eNB、微eNB和家庭(毫微微)eNB。对于gNB也可以由类似的情形。代替地，基站可以被实现为任何其他类型的基站，诸如NodeB和基站收发台(BTS)。基站可以包括：被配置为控制无线通信的主体(也称为基站设备)；以及设置在与主体不同的地方的一个或多个远程无线头端(RRH)。另外，各种类型的用户设备均可以通过暂时地或半持久性地执行基站功能而作为基站工作。
电子设备100至400中的任意一个可以被实现为各种用户设备。用户设备可以被实现为移动终端(诸如智能电话、平板个人计算机(PC)、笔记本式PC、便携式游戏终端、便携式/加密狗型移动路由器和数字摄像装置)或者车载终端(诸如汽车导航设备)。用户设备还可以被实现为执行机器对机器(M2M)通信的终端(也称为机器类型通信(MTC)终端)。此外，用户设备可以为安装在上述终端中的每个终端上的无线通信模块(诸如包括单个晶片的集成电路模块)。
[关于基站的应用示例]
(第一应用示例)
图28是示出可以应用本公开内容的技术的eNB或gNB的示意性配置的第一示例的框图。注意，以下的描述以eNB作为示例，但是同样可以应用于gNB。eNB 800包括一个或多个天线810以及基站设备820。基站设备820和每个天线810可以经由RF线缆彼此连接。
天线810中的每一个均包括单个或多个天线元件(诸如包括在多输入多输出(MIMO)天线中的多个天线元件)，并且用于基站设备820发送和接收无线信号。如图28所示，eNB 800可以包括多个天线810。例如，多个天线810可以与eNB 800使用的多个频带兼容。虽然图28示出其中eNB 800包括多个天线810的示例，但是eNB 800也可以包括单个天线810。
基站设备820包括控制器821、存储器822、网络接口823以及无线通信接口825。
控制器821可以为例如CPU或DSP，并且操作基站设备820的较高层的各种功能。例如，控制器821根据由无线通信接口825处理的信号中的数据来生成数据分组，并经由网络接口823来传递所生成的分组。控制器821可以对来自多个基带处理器的数据进行捆绑以生成捆绑分组，并传递所生成的捆绑分组。控制器821可以具有执行如下控制的逻辑功能：该控制诸如为无线资源控制、无线承载控制、移动性管理、接纳控制和调度。该控制可以结合附近的eNB或核心网节点来执行。存储器822包括RAM和ROM，并且存储由控制器821执行的程序和各种类型的控制数据(诸如终端列表、传输功率数据以及调度数据)。
网络接口823为用于将基站设备820连接至核心网824的通信接口。控制器821可以经由网络接口823而与核心网节点或另外的eNB进行通信。在此情况下，eNB 800与核心网节点或其他eNB可以通过逻辑接口(诸如S1接口和X2接口)而彼此连接。网络接口823还可以为有线通信接口或用于无线回程线路的无线通信接口。如果网络接口823为无线通信接口，则与由无线通信接口825使用的频带相比，网络接口823可以使用较高频带用于无线通信。
无线通信接口825支持任何蜂窝通信方案(诸如长期演进(LTE)和LTE-先进)，并且经由天线810来提供到位于eNB 800的小区中的终端的无线连接。无线通信接口825通常可以包括例如基带(BB)处理器826和RF电路827。BB处理器826可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行层(例如L1、介质访问控制(MAC)、无线链路控制(RLC)和分组数据汇聚协议(PDCP))的各种类型的信号处理。代替控制器821，BB处理器826可以具有上述逻辑功能的一部分或全部。BB处理器826可以为存储通信控制程序的存储器，或者为包括被配置为执行程序的处理器和相关电路的模块。更新程序可以使BB处理器826的功能改变。该模块可以为插入到基站设备820的槽中的卡或刀片。可替代地，该模块也可以为安装在卡或刀片上的芯片。同时，RF电路827可以包括例如混频器、滤波器和放大器，并且经由天线810来传送和接收无线信号。
如图28所示，无线通信接口825可以包括多个BB处理器826。例如，多个BB处理器826可以与eNB 800使用的多个频带兼容。如图28所示，无线通信接口825可以包括多个RF电路827。例如，多个RF电 路827可以与多个天线元件兼容。虽然图28示出其中无线通信接口825包括多个BB处理器826和多个RF电路827的示例，但是无线通信接口825也可以包括单个BB处理器826或单个RF电路827。
在图28所示的eNB 800中，电子设备500的收发器可以由无线通信接口825实现。功能的至少一部分也可以由控制器821实现。例如，控制器821可以通过执行第一生成单元501、第二生成单元502的功能来生成针对用户设备的包括用于波束失败恢复操作的配置的RRC信令以及生成BFRQ响应。
(第二应用示例)
图29是示出可以应用本公开内容的技术的eNB或gNB的示意性配置的第二示例的框图。注意，类似地，以下的描述以eNB作为示例，但是同样可以应用于gNB。eNB 830包括一个或多个天线840、基站设备850和RRH 860。RRH 860和每个天线840可以经由RF线缆而彼此连接。基站设备850和RRH 860可以经由诸如光纤线缆的高速线路而彼此连接。
天线840中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)并且用于RRH 860发送和接收无线信号。如图29所示，eNB 830可以包括多个天线840。例如，多个天线840可以与eNB 830使用的多个频带兼容。虽然图29示出其中eNB 830包括多个天线840的示例，但是eNB 830也可以包括单个天线840。
基站设备850包括控制器851、存储器852、网络接口853、无线通信接口855以及连接接口857。控制器851、存储器852和网络接口853与参照图28描述的控制器821、存储器822和网络接口823相同。
无线通信接口855支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且经由RRH 860和天线840来提供到位于与RRH 860对应的扇区中的终端的无线通信。无线通信接口855通常可以包括例如BB处理器856。除了BB处理器856经由连接接口857连接到RRH 860的RF电路864之外，BB处理器856与参照图28描述的BB处理器826相同。如图29所示，无线通信接口855可以包括多个BB处理器856。例如，多个BB处理器856可以与eNB 830使用的多个频带兼容。虽然图29示出其中无线通信接口855包括多个BB处理器856的示例，但是无线通信接口855 也可以包括单个BB处理器856。
连接接口857为用于将基站设备850(无线通信接口855)连接至RRH 860的接口。连接接口857还可以为用于将基站设备850(无线通信接口855)连接至RRH 860的上述高速线路中的通信的通信模块。
RRH 860包括连接接口861和无线通信接口863。
连接接口861为用于将RRH 860(无线通信接口863)连接至基站设备850的接口。连接接口861还可以为用于上述高速线路中的通信的通信模块。
无线通信接口863经由天线840来传送和接收无线信号。无线通信接口863通常可以包括例如RF电路864。RF电路864可以包括例如混频器、滤波器和放大器，并且经由天线840来传送和接收无线信号。如图29所示，无线通信接口863可以包括多个RF电路864。例如，多个RF电路864可以支持多个天线元件。虽然图29示出其中无线通信接口863包括多个RF电路864的示例，但是无线通信接口863也可以包括单个RF电路864。
在图29所示的eNB 830中，电子设备500的收发器可以由无线通信接口825实现。功能的至少一部分也可以由控制器821实现。例如，控制器821可以通过执行第一生成单元501、第二生成单元502的功能来生成针对用户设备的包括用于波束失败恢复操作的配置的RRC信令以及生成BFRQ响应。
[关于用户设备的应用示例]
(第一应用示例)
图30是示出可以应用本公开内容的技术的智能电话900的示意性配置的示例的框图。智能电话900包括处理器901、存储器902、存储装置903、外部连接接口904、摄像装置906、传感器907、麦克风908、输入装置909、显示装置910、扬声器911、无线通信接口912、一个或多个天线开关915、一个或多个天线916、总线917、电池918以及辅助控制器919。
处理器901可以为例如CPU或片上系统(SoC)，并且控制智能电 话900的应用层和另外层的功能。存储器902包括RAM和ROM，并且存储数据和由处理器901执行的程序。存储装置903可以包括存储介质，诸如半导体存储器和硬盘。外部连接接口904为用于将外部装置(诸如存储卡和通用串行总线(USB)装置)连接至智能电话900的接口。
摄像装置906包括图像传感器(诸如电荷耦合器件(CCD)和互补金属氧化物半导体(CMOS))，并且生成捕获图像。传感器907可以包括一组传感器，诸如测量传感器、陀螺仪传感器、地磁传感器和加速度传感器。麦克风908将输入到智能电话900的声音转换为音频信号。输入装置909包括例如被配置为检测显示装置910的屏幕上的触摸的触摸传感器、小键盘、键盘、按钮或开关，并且接收从用户输入的操作或信息。显示装置910包括屏幕(诸如液晶显示器(LCD)和有机发光二极管(OLED)显示器)，并且显示智能电话900的输出图像。扬声器911将从智能电话900输出的音频信号转换为声音。
无线通信接口912支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口912通常可以包括例如BB处理器913和RF电路914。BB处理器913可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路914可以包括例如混频器、滤波器和放大器，并且经由天线916来传送和接收无线信号。注意，图中虽然示出了一个RF链路与一个天线连接的情形，但是这仅是示意性的，还包括一个RF链路通过多个移相器与多个天线连接的情形。无线通信接口912可以为其上集成有BB处理器913和RF电路914的一个芯片模块。如图30所示，无线通信接口912可以包括多个BB处理器913和多个RF电路914。虽然图30示出其中无线通信接口912包括多个BB处理器913和多个RF电路914的示例，但是无线通信接口912也可以包括单个BB处理器913或单个RF电路914。
此外，除了蜂窝通信方案之外，无线通信接口912可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线局域网(LAN)方案。在此情况下，无线通信接口912可以包括针对每种无线通信方案的BB处理器913和RF电路914。
天线开关915中的每一个在包括在无线通信接口912中的多个电路(例如用于不同的无线通信方案的电路)之间切换天线916的连接目的 地。
天线916中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口912传送和接收无线信号。如图30所示，智能电话900可以包括多个天线916。虽然图30示出其中智能电话900包括多个天线916的示例，但是智能电话900也可以包括单个天线916。
此外，智能电话900可以包括针对每种无线通信方案的天线916。在此情况下，天线开关915可以从智能电话900的配置中省略。
总线917将处理器901、存储器902、存储装置903、外部连接接口904、摄像装置906、传感器907、麦克风908、输入装置909、显示装置910、扬声器911、无线通信接口912以及辅助控制器919彼此连接。电池918经由馈线向图30所示的智能电话900的各个块提供电力，馈线在图中被部分地示为虚线。辅助控制器919例如在睡眠模式下操作智能电话900的最小必需功能。
在图30所示的智能电话900中，电子设备100至400的收发器可以由无线通信接口912实现。功能的至少一部分也可以由处理器901或辅助控制器919实现。例如，处理器901或辅助控制器919可以通过执行波束失败检测单元101和选择单元102的功能来实现波束失败检测和候选波束的选择以避免乒乓效应，通过执行第一检测单元201和第二检测单元202的功能来选择波束质量高的波束作为候选波束，通过执行检测单元301、预测单元302和切换单元303的功能来实现波束失败的预测以及波束切换，通过执行确定单元401、检测单元402、生成单元403和响应监视单元404的功能来实现尾窗机制。
(第二应用示例)
图31是示出可以应用本公开内容的技术的汽车导航设备920的示意性配置的示例的框图。汽车导航设备920包括处理器921、存储器922、全球定位系统(GPS)模块924、传感器925、数据接口926、内容播放器927、存储介质接口928、输入装置929、显示装置930、扬声器931、无线通信接口933、一个或多个天线开关936、一个或多个天线937以及电池938。
处理器921可以为例如CPU或SoC，并且控制汽车导航设备920的 导航功能和另外的功能。存储器922包括RAM和ROM，并且存储数据和由处理器921执行的程序。
GPS模块924使用从GPS卫星接收的GPS信号来测量汽车导航设备920的位置(诸如纬度、经度和高度)。传感器925可以包括一组传感器，诸如陀螺仪传感器、地磁传感器和空气压力传感器。数据接口926经由未示出的终端而连接到例如车载网络941，并且获取由车辆生成的数据(诸如车速数据)。
内容播放器927再现存储在存储介质(诸如CD和DVD)中的内容，该存储介质被插入到存储介质接口928中。输入装置929包括例如被配置为检测显示装置930的屏幕上的触摸的触摸传感器、按钮或开关，并且接收从用户输入的操作或信息。显示装置930包括诸如LCD或OLED显示器的屏幕，并且显示导航功能的图像或再现的内容。扬声器931输出导航功能的声音或再现的内容。
无线通信接口933支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口933通常可以包括例如BB处理器934和RF电路935。BB处理器934可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路935可以包括例如混频器、滤波器和放大器，并且经由天线937来传送和接收无线信号。无线通信接口933还可以为其上集成有BB处理器934和RF电路935的一个芯片模块。如图31所示，无线通信接口933可以包括多个BB处理器934和多个RF电路935。虽然图31示出其中无线通信接口933包括多个BB处理器934和多个RF电路935的示例，但是无线通信接口933也可以包括单个BB处理器934或单个RF电路935。
此外，除了蜂窝通信方案之外，无线通信接口933可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线LAN方案。在此情况下，针对每种无线通信方案，无线通信接口933可以包括BB处理器934和RF电路935。
天线开关936中的每一个在包括在无线通信接口933中的多个电路(诸如用于不同的无线通信方案的电路)之间切换天线937的连接目的地。
天线937中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口933传送和接收无线信号。如图31所示，汽车导航设备920可以包括多个天线937。虽然图31示出其中汽车导航设备920包括多个天线937的示例，但是汽车导航设备920也可以包括单个天线937。
此外，汽车导航设备920可以包括针对每种无线通信方案的天线937。在此情况下，天线开关936可以从汽车导航设备920的配置中省略。
电池938经由馈线向图31所示的汽车导航设备920的各个块提供电力，馈线在图中被部分地示为虚线。电池938累积从车辆提供的电力。
在图31示出的汽车导航设备920中，电子设备100至400的收发器可以由无线通信接口912实现。功能的至少一部分也可以由处理器901或辅助控制器919实现。例如，处理器901或辅助控制器919可以通过执行波束失败检测单元101和选择单元102的功能来实现波束失败检测和候选波束的选择以避免乒乓效应，通过执行第一检测单元201和第二检测单元202的功能来选择波束质量高的波束作为候选波束，通过执行检测单元301、预测单元302和切换单元303的功能来实现波束失败的预测以及波束切换，通过执行确定单元401、检测单元402、生成单元403和响应监视单元404的功能来实现尾窗机制。。
本公开内容的技术也可以被实现为包括汽车导航设备920、车载网络941以及车辆模块942中的一个或多个块的车载系统(或车辆)940。车辆模块942生成车辆数据(诸如车速、发动机速度和故障信息)，并且将所生成的数据输出至车载网络941。
以上结合具体实施例描述了本发明的基本原理，但是，需要指出的是，对本领域的技术人员而言，能够理解本发明的方法和装置的全部或者任何步骤或部件，可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中，以硬件、固件、软件或者其组合的形式实现，这是本领域的技术人员在阅读了本发明的描述的情况下利用其基本电路设计知识或者基本编程技能就能实现的。
而且，本发明还提出了一种存储有机器可读取的指令代码的程序产品。所述指令代码由机器读取并执行时，可执行上述根据本发明实施例 的方法。
相应地，用于承载上述存储有机器可读取的指令代码的程序产品的存储介质也包括在本发明的公开中。所述存储介质包括但不限于软盘、光盘、磁光盘、存储卡、存储棒等等。
在通过软件或固件实现本发明的情况下，从存储介质或网络向具有专用硬件结构的计算机(例如图32所示的通用计算机3200)安装构成该软件的程序，该计算机在安装有各种程序时，能够执行各种功能等。
在图32中，中央处理单元(CPU)3201根据只读存储器(ROM)3202中存储的程序或从存储部分3208加载到随机存取存储器(RAM)3203的程序执行各种处理。在RAM 3203中，也根据需要存储当CPU 3201执行各种处理等等时所需的数据。CPU 3201、ROM 3202和RAM 3203经由总线3204彼此连接。输入/输出接口3205也连接到总线3204。
下述部件连接到输入/输出接口3205：输入部分3206(包括键盘、鼠标等等)、输出部分3207(包括显示器，比如阴极射线管(CRT)、液晶显示器(LCD)等，和扬声器等)、存储部分3208(包括硬盘等)、通信部分3209(包括网络接口卡比如LAN卡、调制解调器等)。通信部分3209经由网络比如因特网执行通信处理。根据需要，驱动器3210也可连接到输入/输出接口3205。可移除介质3211比如磁盘、光盘、磁光盘、半导体存储器等等根据需要被安装在驱动器3210上，使得从中读出的计算机程序根据需要被安装到存储部分3208中。
在通过软件实现上述系列处理的情况下，从网络比如因特网或存储介质比如可移除介质3211安装构成软件的程序。
本领域的技术人员应当理解，这种存储介质不局限于图32所示的其中存储有程序、与设备相分离地分发以向用户提供程序的可移除介质3211。可移除介质3211的例子包含磁盘(包含软盘(注册商标))、光盘(包含光盘只读存储器(CD-ROM)和数字通用盘(DVD))、磁光盘(包含迷你盘(MD)(注册商标))和半导体存储器。或者，存储介质可以是ROM 3202、存储部分3208中包含的硬盘等等，其中存有程序，并且与包含它们的设备一起被分发给用户。
还需要指出的是，在本发明的装置、方法和系统中，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应该视为本发明 的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按时间顺序执行。某些步骤可以并行或彼此独立地执行。
最后，还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。此外，在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上虽然结合附图详细描述了本发明的实施例，但是应当明白，上面所描述的实施方式只是用于说明本发明，而并不构成对本发明的限制。对于本领域的技术人员来说，可以对上述实施方式作出各种修改和变更而没有背离本发明的实质和范围。因此，本发明的范围仅由所附的权利要求及其等效含义来限定。
本技术还可以如下实现。
(1)一种用于无线通信的电子设备，包括：
处理电路，被配置为：
使用波束的第一质量指标对当前服务波束进行波束失败检测；以及
使用波束的所述第一质量指标和不同于所述第一质量指标的第二质量指标从其他波束中选择候选波束，所述候选波束用于波束失败后的波束恢复。
(2)根据(1)所述的电子设备，其中，所述处理电路被配置为从第一质量指标满足第一预定条件的波束中选择第二质量指标满足第二预定条件且最优的一个或多个波束作为所述候选波束。
(3)根据(1)所述的电子设备，其中，所述处理电路被配置为从第二质量指标满足第二预定条件的波束中选择第一质量指标满足第一预定条件且最优的一个或多个波束作为所述候选波束。
(4)根据(1)所述的电子设备，其中，所述处理电路被配置为针对第二质量指标满足第二预定条件的波束，按照第二质量指标指示的波 束质量从高到低的次序，依次确定每一个波束的第一质量指标是否满足第一预定条件，并且将第一质量指标满足所述第一预定条件的波束选择作为一个候选波束，直到候选波束的数量达到要求为止。
(5)根据(4)所述的电子设备，其中，所述第一质量指标为物理下行控制信道的误块率，所述第二质量指标为参考信号接收功率。
(6)根据(1)所述的电子设备，其中，所述处理电路被配置为将所述当前服务波束的第一质量指标与第一阈值相比较来进行波束失败检测，以及分别将其他波束的第一质量指标与第三阈值进行比较和将其他波束的第二质量指标与第二阈值相比较来进行候选波束的选择。
(7)根据(6)所述的电子设备，其中，所述第三阈值与所述第一阈值相等，所述第二阈值所代表的波束质量优于所述第一阈值所代表的波束质量。
(8)根据(6)所述的电子设备，其中，所述第三阈值代表的波束质量优于所述第一阈值所代表的波束质量，以及所述第二阈值所代表的波束质量优于所述第一阈值所代表的波束质量。
(9)根据(6)所述的电子设备，其中，所述处理电路还被配置为在进行候选波束选择时设置定时器，以在该定时器的定时时长内对波束的第一质量指标和第二质量指标进行检测，并且在所述定时时长内波束的第一质量指标和第二质量指标均满足作为候选波束的预定条件的情况下将该波束选择为所述候选波束。
(10)根据(6)所述的电子设备，其中，所述处理电路被配置为经由无线资源控制信令从基站获取关于所述第一阈值、所述第二阈值和所述第三阈值中的一个或多个的设置。
(11)一种用于无线通信的电子设备，包括：
处理电路，被配置为：
对当前服务波束的波束质量进行检测，并且在波束质量低于第一质量的情况下确定发生波束失败；以及
在发生所述波束失败的情况下，对其他波束的波束质量进行检测，并且在波束质量高于第二质量的情况下将该波束选择作为候选波束，
其中，所述第二质量高于所述第一质量。
(12)根据(11)所述的电子设备，其中，所述处理电路还被配置为在进行候选波束选择时设置定时器，以在该定时器的定时时长内对波束的波束质量进行检测，并且在所述定时时长内波束的波束质量均高于所述第二质量的情况下将该波束选择为所述候选波束。
(13)根据(11)所述的电子设备，其中，所述波束质量用物理下行控制信道的误块率或者参考信号接收功率表示。
(14)根据(12)所述的电子设备，其中，所述处理电路被配置为经由无线资源控制信令从基站获取关于所述第一质量、所述第二质量、所述定时器的定时时长中的一个或多个的设置。
(15)一种用于无线通信的电子设备，包括：
处理电路，被配置为：
检测当前服务波束的波束质量；以及
在所检测的波束质量处于特定范围内时，启动预测窗，在所述预测窗内评估所述当前服务波束的波束质量。
(16)根据(15)所述的电子设备，其中，所述波束质量用如下中的一个或多个表示：物理下行控制信道的误块率、参考信号接收功率、参考信号接收质量。
(17)根据(15)所述的电子设备，其中，所述特定范围包括针对所述波束质量的多个阈值中的两个阈值之间的范围。
(18)根据(17)所述的电子设备，其中，所述两个阈值中包括所述多个阈值中指示的波束质量最差的一个阈值。
(19)根据(15)所述的电子设备，其中，所述处理电路被配置为在所述预测窗中检测到所述波束质量处于所述特定范围内的事件数超过预定值的情况下，确定所述当前服务波束的波束质量为差，并且生成波束切换请求以发送至基站。
(20)根据(19)所述的电子设备，其中，所述处理电路还被配置为在确定所述当前服务波束的波束质量差的情况下，对其他波束的波束质量进行检测以选择作为切换目标的一个或多个候选波束，并且将所选择的候选波束的信息包括在所述波束切换请求中。
(21)根据(19)所述的电子设备，其中，所述处理电路还被配置为在所述波束切换请求被发送之后启动波束切换窗，并且在该波束切换窗中监测来自所述基站的波束切换请求响应。
(22)根据(15)所述的电子设备，其中，所述处理电路被配置为在所述预测窗中对所述当前服务波束的波束质量进行预定次数的检测，记录每一次检测的检测值，并基于所记录的检测值来预测所述当前服务波束是否将失败。
(23)根据(22)所述的电子设备，其中，所述处理电路被配置为通过将后一检测值与前一检测值的比值与特定参数相比较来确定所述当前服务波束的波束质量的变化趋势从而进行所述预测，其中，所述特定参数与所述特定范围的上下限和所述预定次数有关。
(24)根据(23)所述的电子设备，其中，所述处理电路被配置对变化趋势一致的比较进行计数，并且在该计数达到所述预定次数时预测所述当前服务波束将失败，其中，所述处理电路还被配置为在所述变化趋势不一致时对所述预定次数进行调整，并且在计数达到调整后的预定次数时预测所述当前服务波束将失败。
(25)根据(24)所述的电子设备，其中，所述处理电路被配置为在所述预定次数上加上如下值来进行调整：所述变化趋势不一致的比较对应的前一检测值的序号与该前一检测值的在前接近检测值的序号之间的差，其中所述在前接近检测值为已经执行了比较的后一检测值与前一检测值之间的范围内包含所述变化趋势不一致的比较对应的后一检测值的情况下，所述已经执行了比较的后一检测值与前一检测值中的前一检测值。
(26)根据(15)所述的电子设备，其中，所述处理电路还被配置为经由无线资源控制信令来获取如下中的一个或多个：关于所述特定范围的信息，关于所述预测窗的大小的信息。
(27)根据(19)所述的电子设备，其中，所述波束切换请求中还包括所述当前服务波束的标识和波束质量信息。
(28)根据(18)所述的电子设备，其中，所述处理电路被配置为在检测到所述当前服务波束的波束质量低于阈值所指示的最差波束质量时，生成波束失败恢复请求以发送给基站。
(29)一种用于无线通信的电子设备，包括：
处理电路，被配置为：
基于来自基站的波束失败恢复请求响应中包括的有关尾窗的信息确定要开启的尾窗的长度；以及
开启所述尾窗并在所述尾窗中检测新波束的波束质量。
(30)根据(29)所述的电子设备，其中，所述处理电路还被配置为生成开启尾窗请求，以与波束失败恢复请求同时发送给所述基站。
(31)根据(29)所述的电子设备，其中，
所述处理电路还被配置为在检测到当前服务波束的波束质量低于预定阈值的次数超过第一次数时，生成波束失败恢复请求；以及
所述处理电路还被配置为在所述尾窗中在检测到所述新波束的波束质量低于预定阈值的次数超过第二次数时，生成新的波束失败恢复请求，
其中，所述第一次数大于所述第二次数。
(32)根据(31)所述的电子设备，其中，
所述处理电路还被配置为在所述波束失败恢复请求被发送后开启第一长度的波束失败恢复窗口以等待所述波束失败恢复请求响应；以及
所述处理电路还被配置为在所述新的波束失败恢复请求被发送后开启第二长度的波束失败恢复窗口以等待所述波束失败恢复请求响应，
其中，所述第一长度大于所述第二长度。
(33)根据(32)所述的电子设备，其中，所述第一长度和所述第二长度以时隙为单位。
(34)一种用于无线通信的电子设备，包括：
处理电路，被配置为：
生成针对用户设备的波束失败恢复操作的配置并将该配置包括在无线资源控制信令中以提供给所述用户设备；以及
响应于来自用户设备的波束失败恢复请求生成波束失败恢复请求响应，
其中，所述配置包括以下中的一个或多个：用于波束质量评估的多 个波束质量阈值，用于候选波束选择的第一波束质量阈值和第二波束质量阈值，用于候选波束选择的定时器长度，用于波束质量评估的预测窗长度。
(35)根据(34)所述的电子设备，其中，所述处理电路还被配置为针对来自所述用户设备的波束切换请求生成波束切换请求响应。
(36)根据(34)所述的电子设备，其中，所述处理电路还被配置为在所述波束失败恢复请求响应中包括关于尾窗的长度的信息，所述用户设备在所述尾窗中检测新波束的波束质量。
(37)一种用于无线通信的方法，包括：
使用波束的第一质量指标对当前服务波束进行波束失败检测；以及
使用波束的所述第一质量指标和不同于所述第一质量指标的第二质量指标从其他波束中选择候选波束，所述候选波束用于波束失败后的波束恢复。
(38)一种用于无线通信的方法，包括：
对当前服务波束的波束质量进行检测，并且在波束质量低于第一质量的情况下确定发生波束失败；以及
在发生所述波束失败的情况下，对其他波束的波束质量进行检测，并且在波束质量高于第二质量的情况下将该波束选择作为候选波束，
其中，所述第二质量高于所述第一质量。
(39)一种用于无线通信的方法，包括：
检测当前服务波束的波束质量；以及
在所检测的波束质量处于特定范围内时，启动预测窗，在所述预测窗内评估所述当前服务波束的波束质量。
(40)一种用于无线通信的方法，包括：
基于来自基站的波束失败恢复请求响应中包括的有关尾窗的信息确定要开启的尾窗的长度；以及
开启所述尾窗并在所述尾窗中检测新波束的波束质量。
(41)一种用于无线通信的方法，包括：
生成针对用户设备的波束失败恢复操作的配置并将该配置包括在无线资源控制信令中以提供给所述用户设备；以及
响应于来自用户设备的波束失败恢复请求生成波束失败恢复请求响应，
其中，所述配置包括以下中的一个或多个：用于波束质量评估的多个波束质量阈值，用于候选波束选择的第一波束质量阈值和第二波束质量阈值，用于候选波束选择的定时器长度，用于波束质量评估的预测窗长度。
(42)一种计算机可读存储介质，其上存储有计算机可执行指令，当所述计算机可执行指令被执行时，执行根据(37)至(41)中的任意一项所述的用于无线通信的方法。

Claims (10)

  1. 一种用于无线通信的电子设备，包括：
    处理电路，被配置为：
    使用波束的第一质量指标对当前服务波束进行波束失败检测；以及
    使用波束的所述第一质量指标和不同于所述第一质量指标的第二质量指标从其他波束中选择候选波束，所述候选波束用于波束失败后的波束恢复。
  2. 一种用于无线通信的电子设备，包括：
    处理电路，被配置为：
    对当前服务波束的波束质量进行检测，并且在波束质量低于第一质量的情况下确定发生波束失败；以及
    在发生所述波束失败的情况下，对其他波束的波束质量进行检测，并且在波束质量高于第二质量的情况下将该波束选择作为候选波束，
    其中，所述第二质量高于所述第一质量。
  3. 一种用于无线通信的电子设备，包括：
    处理电路，被配置为：
    检测当前服务波束的波束质量；以及
    在所检测的波束质量处于特定范围内时，启动预测窗，在所述预测窗内评估所述当前服务波束的波束质量。
  4. 一种用于无线通信的电子设备，包括：
    处理电路，被配置为：
    基于来自基站的波束失败恢复请求响应中包括的有关尾窗的信息确定要开启的尾窗的长度；以及
    开启所述尾窗并在所述尾窗中检测新波束的波束质量。
  5. 一种用于无线通信的电子设备，包括：
    处理电路，被配置为：
    生成针对用户设备的波束失败恢复操作的配置并将该配置包括在无线资源控制信令中以提供给所述用户设备；以及
    响应于来自用户设备的波束失败恢复请求生成波束失败恢复请求响应，
    其中，所述配置包括以下中的一个或多个：用于波束质量评估的多个波束质量阈值，用于候选波束选择的第一波束质量阈值和第二波束质量阈值，用于候选波束选择的定时器长度，用于波束质量评估的预测窗长度。
  6. 一种用于无线通信的方法，包括：
    使用波束的第一质量指标对当前服务波束进行波束失败检测；以及
    使用波束的所述第一质量指标和不同于所述第一质量指标的第二质量指标从其他波束中选择候选波束，所述候选波束用于波束失败后的波束恢复。
  7. 一种用于无线通信的方法，包括：
    对当前服务波束的波束质量进行检测，并且在波束质量低于第一质量的情况下确定发生波束失败；以及
    在发生所述波束失败的情况下，对其他波束的波束质量进行检测，并且在波束质量高于第二质量的情况下将该波束选择作为候选波束，
    其中，所述第二质量高于所述第一质量。
  8. 一种用于无线通信的方法，包括：
    检测当前服务波束的波束质量；以及
    在所检测的波束质量处于特定范围内时，启动预测窗，在所述预测窗内评估所述当前服务波束的波束质量。
  9. 一种用于无线通信的方法，包括：
    基于来自基站的波束失败恢复请求响应中包括的有关尾窗的信息确定要开启的尾窗的长度；以及
    开启所述尾窗并在所述尾窗中检测新波束的波束质量。
  10. 一种用于无线通信的方法，包括：
    生成针对用户设备的波束失败恢复操作的配置并将该配置包括在无线资源控制信令中以提供给所述用户设备；以及
    响应于来自用户设备的波束失败恢复请求生成波束失败恢复请求响应，
    其中，所述配置包括以下中的一个或多个：用于波束质量评估的多个波束质量阈值，用于候选波束选择的第一波束质量阈值和第二波束质量阈值，用于候选波束选择的定时器长度，用于波束质量评估的预测窗长度。
PCT/CN2019/086354 2018-05-17 2019-05-10 用于无线通信的电子设备和方法、计算机可读存储介质 Ceased WO2019218936A1 (zh)

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US11456795B2 (en) 2022-09-27

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