CN114391238A - Communication method, device, equipment and readable storage medium - Google Patents

Communication method, device, equipment and readable storage medium Download PDF

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Publication number
CN114391238A
CN114391238A CN202180004497.2A CN202180004497A CN114391238A CN 114391238 A CN114391238 A CN 114391238A CN 202180004497 A CN202180004497 A CN 202180004497A CN 114391238 A CN114391238 A CN 114391238A
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lbt
identifier
sensing
channel
beam set
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江小威
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

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

Abstract

The disclosure provides a communication method, a communication device, communication equipment and a readable storage medium, and relates to the field of communication. The method comprises the following steps: determining a channel monitoring result of Listen Before Talk (LBT); and updating an LBT counter or a timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier. In the process of the LBT channel monitoring result, the sensing beam or the beam set corresponding to the LBT channel monitoring result is synchronously determined, so that whether the beam corresponding to the channel monitoring result changes or not is judged, the problem that the LBT accuracy is low due to the fact that different beams are correspondingly counted or timed on the same counter/timer is solved, and counting/timing of directional LBT is achieved.

Description

Communication method, device, equipment and readable storage medium
Technical Field
The present application relates to the field of communications, and in particular, to a communication method, apparatus, device, and readable storage medium.
Background
The third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) defines three major directions for the 5G application scenario: mobile Broadband enhancement (eMBB), mass internet of things (mtc), Ultra-high Reliable and Ultra-Low Latency Communication (URLLC).
When a terminal sends HARQ-ACK information on an unlicensed frequency band, it first needs to perform Channel monitoring on a Listen Before Talk (LBT) band to which a Physical Uplink Control Channel (PUCCH) belongs.
Disclosure of Invention
The embodiment of the application provides a communication method, a communication device, communication equipment and a readable storage medium. The technical scheme is as follows:
in one aspect, a communication method is provided, which is applied to a terminal, and the method includes:
determining a channel monitoring result of Listen Before Talk (LBT);
and updating an LBT counter or a timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier.
In another aspect, a communication apparatus is provided, the apparatus comprising:
a processing module configured to determine a channel listening result of a listen before talk, LBT; and updating an LBT counter or a timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier.
In another aspect, a terminal is provided, which includes:
a processor;
a transceiver coupled to the processor;
wherein the processor is configured to load and execute the executable instructions to implement the communication method as described in the embodiments of the present application.
In another aspect, a computer-readable storage medium is provided, in which at least one instruction, at least one program, code set, or instruction set is stored, and the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the communication method according to the embodiments of the present application.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
in the process of the LBT channel monitoring result, a sensing (sensing) wave beam or a wave beam set corresponding to the LBT channel monitoring result is synchronously determined, so that whether the wave beam corresponding to the channel monitoring result changes or not is judged, the problem that the LBT accuracy is low due to the fact that different wave beams correspondingly count or time on the same counter/timer is solved, and the counting/timing of directional LBT is achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram of a communication system provided by an exemplary embodiment of the present disclosure;
fig. 2 is a flow chart of a communication method provided by an exemplary embodiment of the present disclosure;
fig. 3 is a flowchart of a communication method provided by another exemplary embodiment of the present disclosure;
fig. 4 is a flowchart of a communication method provided by another exemplary embodiment of the present disclosure;
fig. 5 is a block diagram of a communication device according to an exemplary embodiment of the present disclosure;
fig. 6 is a block diagram of a terminal provided by an exemplary embodiment of the present disclosure;
fig. 7 is a block diagram of an access network device provided in an exemplary embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present disclosure, which may include: a core network 11, an access network 12 and a terminal 13.
The core network 11 includes a number of core network devices 110. The core network device 110 includes Access and Mobility Management Function (AMF), Session Management Function (SMF), and User Plane Management Function (UPF), where AMF is used to control Access authority and switching of the terminal, and SMF is used to provide server continuity and uninterrupted User experience of the server, such as: IP address and anchor change, etc.
Several access network devices 120 are included in access network 12. The access network equipment 120 may be a base station, which is a device deployed in an access network to provide wireless communication functions for terminals. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, names of devices having a base station function may be different, for example, in a Long Term Evolution (LTE) system, the device is called eNodeB or eNB; in a 5G New Radio (NR) system, it is called a gNode B or a gNB. The name "base station" may describe, and may vary as communication technology evolves. For convenience, in the embodiments of the present disclosure, the above-mentioned device for providing a wireless communication function for a terminal is collectively referred to as an access network device.
The terminal 13 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem having wireless communication functions, as well as various forms of terminals (UE), Mobile Stations (MS), terminal (terminal device), and the like. For convenience of description, the above-mentioned devices are collectively referred to as a terminal. The access network device 120 and the terminal 13 communicate with each other through some air interface technology, for example, a Uu interface.
Optionally, during the wireless communication between the terminal 13 and the access network device 120, the wireless communication may be performed through an authorized frequency band, or may be performed through an unauthorized frequency band. Optionally, in the embodiment of the present disclosure, a description is given of an example in which the terminal 13 and the access network device 120 perform wireless communication through an unlicensed frequency band.
Currently, 3GPP is discussing support of extended NR support frequencies from the highest 52.6GHz to the highest 71 GHz. The frequency range of 52.6GHz-71GHz includes 60GHz unlicensed band. The frequency band adopts an NR-U (NR-Unlicensed) technology, and is mainly characterized in that the UE and the gNB need to perform LBT (Listen-before-talk) before sending, and data can be sent only after detecting that a channel is idle. The sending end generally needs to perform channel monitoring before sending the communication message, and only after the channel monitoring is successful, that is, it is determined that the monitored channel is not occupied by other sending ends, the communication message can be sent in the channel, that is, the channel occupation mechanism of LBT.
The sending end performs channel monitoring by using an LBT band (bandwidth) as a frequency unit, illustratively, one LBT band is 20MHz, and the base station may include one or more LBT bands in an uplink resource (bandwidth Part, BWP) configured for the UE.
The UE monitors with BWP granularity when it fails to monitor LBT. If a continuous LBT failure is detected on a BWP of a Serving Cell (Serving Cell), that is, the result of LBT Channel monitoring is continuously the result of failed monitoring, the UE switches to another BWP of the Serving Cell configured with Physical Random Access Channel (PRACH) resources to initiate Random Access. Meanwhile, if the UE has available uplink carrier resources, a LBT failure Media Access Control (MAC) CE (Control element) is generated, and the MAC CE indicates all Serving Cell ids of LBT failure. If the UE tries all BWPs of the Serving Cell, a continuous LBT Failure occurs, and if the Serving Cell is a Special Cell (SpCell), the UE MAC layer indicates the LBT Failure to a Radio Resource Control (RRC) layer, and the UE indicates a Master Cell Group (MCG)/Secondary Cell Group (SCG) Radio Link Failure (RLF).
The judgment mode of the continuous LBT failure is as follows:
the UE MAC layer adds 1 to the LBT COUNTER (LBT _ COUNTER) after each LBT failure instance indicated by the Physical layer (PHY) and restarts the timer LBT-failure detection timer (representing the duration of time that no LBT failure instance is received).
Triggering the continuous LBT failure of the current active BWP when the LBT _ COUNTER is larger than or equal to LBT-FailurelnstancemeMaxCount (maximum counting threshold). When the UE changes BWP, LBT _ COUNTER is set to 0, and LBT-FailureDetectionTimer is stopped. LBT-FailureDetectionTimer is overtime, which indicates that no LBT failure instance has been received within a period of time, and the channel is considered to be good, and LBT _ COUNTER is cleared.
For an unlicensed frequency band, namely a 60GHz high frequency band, a very narrow beam (beam) can be used for communication transceiving, and the LBT condition in the beam direction is no longer transmitted, which has no influence on transmission, so that omnidirectional LBT monitoring is not needed.
For this reason, 3GPP is discussing the introduction of directional (directional) LBT, i.e. LBT is not omni-directional monitoring, but only monitoring in a specific direction. The UE transmitting beam and listening for a sensing (sensing) beam of LBT are preceded by at least one of the following relations: 1. one transmit beam corresponds to one sending beam or set of beams; 2. one sensing beam corresponds to one transmit beam or set of beams. Wherein the beamwidth of the sending beam or the set of beams of the transmission beam map needs to cover at least the beamwidth of the transmission beam.
In the related art, the determination of the sustained LBT failure is made within one BWP, and all beam directions are taken into consideration. Obviously, after the introduction of the directional LBT, it is not appropriate to judge the sustained LBT failure based on the omnidirectional LBT failure condition. Such as: according to a relevant protocol, when a physical layer monitors LBT failure in a beam direction, indicating the LBT failure instance to an MAC layer, and the MAC layer adding 1 to the LBT _ COUNTER count; then, after the physical layer changes the beam monitoring direction, LBT failure occurs again, indicating LBT failure instance to the MAC layer, which in turn increments the LBT _ COUNTER count by 1. However, the two LBT failure instances come from two different LBT monitoring directions, and the LBT times in multiple directions are counted by superposition, so that it is obviously impossible to correctly determine which LBT monitoring direction actually generates the continuous LBT failure.
In the embodiment of the present application, the LBT counter or the timer is updated according to the sensing beam or the beam set corresponding to the transmission beam.
Fig. 2 is a flowchart of a communication method according to an exemplary embodiment of the present disclosure, which is described by taking as an example that the method is applied to the terminal shown in fig. 1, and as shown in fig. 2, the method includes:
step 201, determining a channel monitoring result of listen before talk LBT.
Optionally, the channel sensing result of the LBT includes channel sensing success or channel sensing failure. The successful channel monitoring is used for indicating that the monitored channel of the LBT is idle and can carry out communication transmission; the channel monitoring failure is used for indicating that the monitored channel of the LBT is busy and cannot carry out communication transmission.
Optionally, the physical layer listens to the LBT channel in one beam direction, and indicates a channel listening result of LBT to the MAC layer.
Step 202, updating an LBT counter according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier.
Optionally, since one transmission beam corresponds to one sensing beam or one transmission beam corresponds to one beam set, when one transmission beam corresponds to one sensing beam, the LBT counter is updated according to the channel monitoring result and the corresponding sensing beam identifier, and when one transmission beam corresponds to one beam set, the LBT counter is updated according to the channel monitoring result and the corresponding beam set identifier.
And step 203, updating the timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier.
Optionally, since one transmission beam corresponds to one sensing beam or one transmission beam corresponds to one beam set, when one transmission beam corresponds to one sensing beam, the timer is updated according to the channel monitoring result and the corresponding sensing beam identifier, and when one transmission beam corresponds to one beam set, the timer is updated according to the channel monitoring result and the corresponding beam set identifier.
In the embodiment of the present application, a description is given by taking an example in which one transmission beam corresponds to one sensing beam or a beam set.
Optionally, the LBT counter and/or the timer is updated correspondingly according to the channel monitoring result and the sensing beam or beam set condition corresponding to the channel monitoring result.
Optionally, after receiving the channel monitoring result indicated by the physical layer, the MAC layer updates the LBT counter and/or the timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier.
To sum up, in the LBT channel monitoring result process, the sensing (sensing) beam or the beam set corresponding to the LBT channel monitoring result is synchronously determined, so as to determine whether the beam corresponding to the channel monitoring result changes, avoid the problem of low LBT accuracy caused by the fact that different beams count or time on the same counter/timer correspondingly, and solve the counting/time of directional LBT.
In the embodiment of the present application, the schemes for updating the counter/timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier are respectively described.
1. Resetting counter and/or stop timer scheme
Fig. 3 is a flowchart of a communication method according to an exemplary embodiment of the present application, which is described by taking as an example that the method is applied to the terminal shown in fig. 1, and as shown in fig. 3, the method includes:
step 301, determining a channel listening result of listen before talk LBT.
Optionally, the channel sensing result of the LBT includes channel sensing success or channel sensing failure. The successful channel monitoring is used for indicating that the monitored channel of the LBT is idle and can carry out communication transmission; the channel monitoring failure is used for indicating that the monitored channel of the LBT is busy and cannot carry out communication transmission.
Step 302, in response to the change of the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result, setting a LBT counter to zero.
That is, if the perceived beam or beam set changes, LBT _ COUNTER is set to 0.
Step 303, in response to the change of the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result, the timer is stopped.
That is, if the sensing beam or beam set changes, the lbt-FailureDetectionTimer is stopped.
The setting LBT _ COUNTER to 0 and stopping LBT-FailureDetectionTimer may be implemented alternatively or simultaneously, that is, the step 302 and the step 303 may be executed only by the step 302, only by the step 303, and also by the step 302 and the step 303, which is not limited in this embodiment. That is, if the perceived beam or set of beams changes, one or more of the following operations are performed: 1. setting LBT _ COUNTER to 0; 2. stop lbt-FailureDetectionTimer.
The change of the sensing beam or the beam set means that the sensing beam identifier or the beam set identifier for the LBT channel monitoring is different from the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result, and the change of the sensing beam or the beam set is determined.
That is, in the LBT channel listening process, there is an indication of the currently targeted sensing beam or beam set, so that it can be determined whether the sensing beam or beam set changes according to the sensing beam identification or beam set identification corresponding to the received channel listening result.
Alternatively, determining that the perceived beam or set of beams has changed may be determined by at least one of:
first, when a transmission beam of the listen before talk LBT is switched from a first beam to a second beam, and a sensing beam or a beam set corresponding to the first beam is different from a sensing beam or a beam set corresponding to the second beam, it is determined that the sensing beam or the beam set is changed.
That is, the transmission beam of the UE is switched from beam1 to beam2, and the sensing beam (sensing beam) or beam set (beam set) corresponding to beam2 is different from the sensing beam or beam set corresponding to beam 1.
Secondly, when a sensing beam or beam set corresponding to a transmitting beam of the listen before talk LBT is switched from a first sensing beam or beam set to a second sensing beam or beam set, it is determined that a sensing beam identifier or beam set identifier changes.
That is, the transmission beam of the UE is not changed, but the sending beam or beam set corresponding to the transmission beam is switched to a new sending beam or beam set.
Optionally, in the reset counter and/or stop timer scheme, at least one of the following implementations is included:
1.1 each LBT channel monitoring result comprises corresponding sensing beam identification or beam set identification;
that is, no matter the channel monitoring result monitored by the physical layer in the beam direction is a successful channel monitoring or a failed channel monitoring, the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result is indicated to the MAC layer, so that the MAC layer determines whether the sensing beam or the beam set targeted by the current channel monitoring changes according to the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result, and updates the LBT counter and/or the timer according to the change condition of the sensing beam or the beam set.
Wherein updating the LBT counter and/or the timer according to the change of the sensing beam or the set of beams comprises at least one of:
first oneSensing whether the beam identifier or the beam set identifier is changed or not when the channel monitoring is successful;
that is, on the LBT listening channel, the channel listening is successful, the communication transmission can be performed, and the sensing beam or the beam set is not changed, the LBT counter does not need to be increased and/or the timer continues to count.
Optionally, when the channel monitoring is successful and the sensing beam identifier or the beam set identifier is not changed, the physical layer does not need to indicate the sensing beam identifier or the beam set identifier to the MAC layer; or, when the channel monitoring is successful and the sensing beam identifier or the beam set identifier is not changed, the physical layer indicates the sensing beam identifier or the beam set identifier to the MAC layer, but the MAC layer recognizes that the sensing beam or the beam set is not changed and controls the LBT counter not to be incremented and/or the timer to keep timing.
Optionally, when the duration of the timer reaches the timing threshold, the timer is set to zero, which indicates that the channel monitoring result corresponding to the current LBT channel monitoring fails to perform channel monitoring within the timing threshold, that is, the channel quality monitored by the LBT is good, and the LBT timer is cleared at the same time.
Second kindSensing the change of the beam identifier or the beam set identifier when the channel monitoring is successful;
that is, on the LBT listening channel, the channel listening is successful, but since the sensing beam identifier or the beam set identifier changes, that is, the sensing beam or the beam set for which the current LBT channel listening is directed is different from the sensing beam or the beam set for which the channel listening is successful, the LBT counter is set to zero and/or the timer is stopped.
Optionally, when the channel monitoring is successful and the sensing beam identifier or the beam set identifier changes, the physical layer indicates the sensing beam identifier or the beam set identifier to the MAC layer, and the MAC layer recognizes that the sensing beam or the beam set changes and controls the LBT counter to be set to zero and/or stop the timer.
Optionally, since the sensing beam or beam set changes, the MAC layer updates and replaces the sensing beam or beam set for which the current LBT channel is monitored with the sensing beam or beam set corresponding to the last channel monitoring result.
Third kindIf the channel monitoring fails, sensing the beam identifier or the beam set identifier is unchanged;
that is, if the channel monitoring on the LBT monitoring channel fails, the channel monitored by the LBT cannot perform communication transmission, and the sensing beam or the beam set does not change, the LBT counter performs counting and 1 adding and/or a timer restarting timing process according to the LBT failure instance indicated by the channel monitoring failure.
Optionally, when the channel monitoring fails and the sensing beam identifier or the beam set identifier does not change, the physical layer does not need to indicate the sensing beam identifier or the beam set identifier to the MAC layer, and only indicates the LBT failure instance to the MAC layer; or, when the channel monitoring fails and the sensing beam identifier or the beam set identifier is not changed, the physical layer indicates the LBT failure instance and the sensing beam identifier or the beam set identifier to the MAC layer, but the MAC layer recognizes that the sensing beam or the beam set is not changed, and controls the LBT counter to count and add 1 and/or restart the timing process by the timer according to the LBT failure instance.
Fourth typeAnd the channel monitoring fails, and the sensing beam identifier or the beam set identifier changes.
That is, if the LBT listening channel fails to perform channel listening, the LBT listening channel cannot perform communication transmission, and the sensing beam or beam set changes, that is, the sensing beam or beam set for which the current LBT channel listening is directed is different from the sensing beam or beam set for which the channel listening fails, so the LBT counter is set to zero and/or the timer is stopped.
Optionally, when the channel monitoring fails and the sensing beam identifier or the beam set identifier changes, the physical layer indicates the LBT failure instance and the sensing beam identifier or the beam set identifier to the MAC layer, and the MAC layer identifies that the sensing beam or the beam set changes and controls the LBT counter to be set to zero and/or stop the timer.
Optionally, since the sensing beam or beam set changes, the MAC layer updates and replaces the sensing beam or beam set for which the current LBT channel is monitored with the sensing beam or beam set corresponding to the last channel monitoring result.
Wherein when the count of the LBT counter reaches a count threshold, it is determined that a sustained LBT of the sensing beam or beam set for which the current LBT channel listens fails.
Optionally, if all candidate sensing beams or beam sets on the current active BWP trigger the continuous LBT failure, the current BWP is triggered to have the continuous LBT failure, and the BWP is replaced to perform the LBT channel listening.
Optionally, when it is determined that the persistent LBT of the current sensing beam or beam set fails, a random access procedure is triggered.
Optionally, when determining that the continuous LBT of the current sensing beam or beam set fails, the UE generates LBT failure indication information, such as: and the MAC CE, wherein the indication information is used for indicating the sensing beam or the beam set with LBT failure. Illustratively, the indication information includes a sensing beam identifier or a beam set identifier where LBT failure occurs, and optionally, the indication information further includes a current active BWP identifier and/or a serving cell identifier.
When the timing duration continuously timed by the timer reaches a timing threshold, the timer is set to zero, which indicates that the channel monitoring result corresponding to the current LBT channel monitoring does not have channel monitoring failure within the timing threshold, i.e. the channel quality monitored by the LBT is better, and the LBT timer is reset.
1.2 the channel listening result in response to LBT is used to indicate the channel listening failure, the channel listening result of LBT corresponds to There is a perceptual beam identification or a beam set identification.
That is, only when the channel monitoring result monitored by the physical layer in the beam direction is a channel monitoring failure, indicating a sensing beam identifier or a beam set identifier corresponding to the channel monitoring failure to the MAC layer, so that the MAC layer determines whether a sensing beam or a beam set targeted by the statistics of the current LBT counter/timer changes according to the sensing beam identifier or the beam set identifier corresponding to the channel monitoring failure, and updates the LBT counter and/or timer according to the change condition of the sensing beam or the beam set.
Wherein updating the LBT counter and/or the timer according to the change of the sensing beam or the set of beams comprises at least one of:
first oneSensing that the beam identity or beam set identity has not changed;
that is, if the channel monitoring on the LBT monitoring channel fails, the channel monitored by the LBT cannot perform communication transmission, and the sensing beam or the beam set does not change, the LBT counter performs counting and 1 adding and/or a timer restarting timing process according to the LBT failure instance indicated by the channel monitoring failure.
Second kindThe perceptual beam identity or beam set identity changes.
That is, if the LBT listening channel fails to perform channel listening, the LBT listening channel cannot perform communication transmission, and the sensing beam or beam set changes, that is, the sensing beam or beam set for which the current LBT channel listening is directed is different from the sensing beam or beam set at the time of the last channel listening failure, so the LBT counter is set to zero and/or the timer is stopped.
Optionally, since the sensing beam or beam set changes, the MAC layer updates and replaces the sensing beam or beam set for which the current LBT channel is monitored with the sensing beam or beam set corresponding to the last channel monitoring result.
Wherein when the count of the LBT counter reaches a count threshold, it is determined that a sustained LBT of the sensing beam or beam set for which the current LBT channel listens fails.
Optionally, if all candidate sensing beams or beam sets on the current active BWP trigger the continuous LBT failure, the current BWP is triggered to have the continuous LBT failure, and the BWP is replaced to perform the LBT channel listening.
Optionally, when it is determined that the persistent LBT of the current sensing beam or beam set fails, a random access procedure is triggered.
Optionally, when determining that the continuous LBT of the current sensing beam or beam set fails, the UE generates LBT failure indication information, such as: and the MAC CE, wherein the indication information is used for indicating the sensing beam or the beam set with LBT failure. Illustratively, the indication information includes a sensing beam identifier or a beam set identifier where LBT failure occurs, and optionally, the indication information further includes a current active BWP identifier and/or a serving cell identifier.
When the timing duration of the timer for continuous timing reaches the timing threshold, the timer is set to zero, which indicates that the channel monitoring result corresponding to the current LBT channel monitoring does not have channel monitoring failure within the timing threshold, i.e. the channel quality monitored by the LBT is better, and the LBT counter is set to zero at the same time.
For the counter:optionally, in the above-described scheme of resetting the counter and/or stopping the timer, only one LBT counter is used at a time, that is, the LBT counter for the current sensing beam or beam set; alternatively, the LBT counter includes a Physical Uplink Control Channel (PUCCH) corresponding theretoAnd a second LBT counter corresponding to a Physical Uplink Shared Channel (PUSCH); and the first LBT counter and the second LBT counter respectively count corresponding to PUCCH and PUSCH. Optionally, PUCCH and PUSCH correspond to respective perceptual beams or beam sets, respectively.
Illustratively, when the received channel monitoring result is a channel failure result corresponding to the PUCCH and a sensing beam identifier or a beam set identifier corresponding to the PUCCH changes, setting a first LBT counter corresponding to the PUCCH to zero; when the received channel monitoring result is a channel failure result corresponding to the PUCCH and a sensing beam identifier or a beam set identifier corresponding to the PUCCH is not changed, counting a first LBT counter corresponding to the PUCCH and adding 1; when the received channel monitoring result is a channel failure result corresponding to the PUSCH and a sensing beam identifier or a beam set identifier corresponding to the PUSCH is changed, setting a second LBT counter corresponding to the PUSCH to zero; and when the received channel monitoring result is a channel failure result corresponding to the PUSCH and the sensing beam identifier or the beam set identifier corresponding to the PUSCH is not changed, counting the second LBT counter corresponding to the PUSCH and adding 1.
For the timer:optionally, in the above-described scheme of resetting the counter and/or stopping the timer, only one timer is used at a time, i.e., the timer for the current sensing beam or beam set; or the timers comprise a first timer corresponding to the PUCCH and a second timer corresponding to the PUSCH; the first timer and the second timer respectively time corresponding to the PUCCH and the PUSCH. Optionally, PUCCH and PUSCH correspond to respective perceptual beams or beam sets, respectively.
Illustratively, when the received channel monitoring result is a channel failure result corresponding to the PUCCH and a sensing beam identifier or a beam set identifier corresponding to the PUCCH changes, the first timer corresponding to the PUCCH is stopped to count time; when the received channel monitoring result is a channel failure result corresponding to the PUCCH and the sensing beam identifier or the beam set identifier corresponding to the PUCCH is not changed, restarting a first timer corresponding to the PUCCH for timing; when the received channel monitoring result is a channel failure result corresponding to the PUSCH and a sensing beam identifier or a beam set identifier corresponding to the PUSCH is changed, stopping timing of a second timer corresponding to the PUSCH; and when the received channel monitoring result is a channel failure result corresponding to the PUSCH and the sensing beam identifier or the beam set identifier corresponding to the PUSCH is not changed, restarting the second timer corresponding to the PUSCH.
2. Configuring a plurality of timers and/or counters
Fig. 4 is a flowchart of a communication method according to an exemplary embodiment of the present application, which is described by taking as an example that the method is applied to the terminal shown in fig. 1, and as shown in fig. 4, the method includes:
step 401, determining a channel listening result of listen before talk LBT.
Optionally, the channel sensing result of the LBT includes channel sensing success or channel sensing failure. The successful channel monitoring is used for indicating that the monitored channel of the LBT is idle and can carry out communication transmission; the channel monitoring failure is used for indicating that the monitored channel of the LBT is busy and cannot carry out communication transmission.
Step 402, updating at least one LBT counter corresponding to the sensing beam identifier or the beam set identifier according to the channel monitoring result.
That is, according to the channel monitoring result, updating at least one LBT counter corresponding to the sensing beam identifier or the beam set identifier, respectively, where different sensing beam identifiers or beam set identifiers correspond to different LBT counters.
In some embodiments, the LBT counter corresponding to the sensing beam identifier or the beam set identifier corresponding to the channel listening result is updated. That is, the channel monitoring result corresponds to the sensing beam identifier or the beam set identifier, and there is a corresponding relationship between the sensing beam identifier or the beam set identifier and the LBT counter, and the counting process of the corresponding LBT counter is updated according to the corresponding relationship between the sensing beam identifier or the beam set identifier and the LBT counter.
Optionally, the UE includes an LBT counter list corresponding to the sensing beam identifier or the beam set identifier, respectively, such as:
sensing beam1/beam set1 corresponds to LBT _ COUNTERa
sensing beam2/beam set2 corresponds to LBT _ COUNTERb
sensing beam3/beam set3 corresponds to LBT _ COUNTERc
Updating an LBT counter corresponding to the sensing beam identifier or the beam set identifier according to the channel monitoring result and the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result.
In some embodiments, in the case that the channel listening result is used to indicate that the channel listening fails, the LBT counter corresponding to the sensing beam identifier or the beam set identifier is counted and increased by 1.
When the count of the LBT counter corresponding to the sensing beam identifier or the beam set identifier reaches a count threshold value, determining that the continuous LBT of the sensing beam identifier or the beam set identifier fails.
Optionally, if all candidate sensing beams or beam sets on the current active BWP trigger the continuous LBT failure, the current BWP is triggered to have the continuous LBT failure, and the BWP is replaced to perform the LBT channel listening.
Optionally, the random access procedure is triggered when it is determined that persistent LBT of the perceived beam or set of beams fails.
Optionally, when determining that the sustained LBT of the perceived beam or the set of beams fails, the UE generates LBT failure indication information, such as: and the MAC CE, wherein the indication information is used for indicating the sensing beam or the beam set with LBT failure. The UE reports indication information through uplink resources, illustratively, the indication information includes a sensing beam identifier or a beam set identifier where LBT failure occurs, and optionally, the indication information further includes a current active BWP identifier and/or a serving cell identifier.
Optionally, when the UE currently has available uplink resources and the uplink resources can accommodate the indication information, reporting the indication information through the uplink resources, for example: the uplink resource can accommodate the MAC CE and MAC CE subheader.
In some embodiments, a listening channel corresponding to the persistent LBT failure is further included in the indication information, and the listening channel includes a PUCCH or a PUSCH.
Optionally, when the sending beam/beam set identifiers corresponding to the PUCCH and PUSCH channels are different, the indication information includes or does not include the listening channel corresponding to the persistent LBT failure. The method comprises the following steps:
sensing beam1/beam set1 corresponds to LBT _ COUNTERa
sensing beam2/beam set2 corresponds to LBT _ COUNTERb
sensing beam3/beam set3 corresponds to LBT _ COUNTERc
The sensing beam1/beam set1 is a sensing beam identifier or a beam set identifier corresponding to the PUCCH, and the sensing beam2/beam set2 and the sensing beam3/beam set3 are sensing beam identifiers or beam set identifiers corresponding to the PUSCH, so that the sensing beam identifiers or beam set identifiers are included in the indication information, and the channel type with the continuous LBT failure can be obtained.
Optionally, after the sending beam/beam set has sustained LBT failure, a random access procedure is triggered, and an LBT failure MAC CE is reported, where the LBT failure MAC CE also indicates whether PUCCH LBT failure or PUSCH LBT failure. Triggering BWP continuous LBT failure after all sending beam/beam set of PUCCH continuous LBT failure; and/or triggering BWP continuous LBT failure after all sending beams of the PUSCH have continuous LBT failure.
Step 403, updating a timer corresponding to at least one sensing beam identifier or beam set identifier according to the channel monitoring result.
That is, according to the channel monitoring result, the timers respectively corresponding to at least one sensing beam identifier or beam set identifier are updated, wherein different sensing beam identifiers or beam set identifiers correspond to different timers.
In some embodiments, the timer corresponding to the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result is updated. That is, the channel monitoring result corresponds to the sensing beam identifier or the beam set identifier, and there is a corresponding relationship between the sensing beam identifier or the beam set identifier and the timer, and the timing process of the corresponding timer is updated according to the corresponding relationship between the sensing beam identifier or the beam set identifier and the timer.
Optionally, the UE includes a timer list corresponding to the sensing beam identifier or the beam set identifier, respectively, such as:
sensing beam1/beam set1 corresponds to lbt-FailureDetectionTimer _ a
Sensing beam2/beam set2 corresponds to lbt-FailureDetectionTimer _ b
Sensing beam3/beam set3 corresponds to lbt-FailureDetectionTimer _ c
And updating the timer corresponding to the sensing beam identifier or the beam set identifier according to the channel monitoring result and the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result.
In some embodiments, in the case that the channel monitoring result is used to indicate that the channel monitoring fails, the timer corresponding to the sensing beam identifier or the beam set identifier is restarted, that is, the timing is started from 0 again or from the specified starting time point.
Optionally, when the timer corresponding to the sensing beam identifier or the beam set identifier reaches the timing threshold, setting a counter corresponding to the sensing beam identifier or the beam set identifier to zero, which indicates that a channel monitoring result corresponding to the current LBT channel monitoring does not fail to perform channel monitoring within the timing threshold, that is, the channel quality monitored by the LBT is better.
Optionally, the MAC layer receives an LBT failure instance indicated by the physical layer, and receives a sending beam/beam set identifier corresponding to the LBT failure instance;
or the physical layer does not inform the sending beam/beam set at the LBT failure time, but informs the MAC layer when the currently used sending beam/beam set is determined or updated.
Alternatively, determining that the perceived beam or set of beams has changed may be determined by at least one of:
first, when a transmission beam of the listen before talk LBT is switched from a first beam to a second beam, and a sensing beam or a beam set corresponding to the first beam is different from a sensing beam or a beam set corresponding to the second beam, it is determined that the sensing beam or the beam set is changed.
That is, the transmission beam of the UE is switched from beam1 to beam2, and the sensing beam (sensing beam) or beam set (beam set) corresponding to beam2 is different from the sensing beam or beam set corresponding to beam 1.
Secondly, when a sensing beam or a beam set corresponding to a transmitting beam of the listen before talk LBT is switched from a first sensing beam or a beam set to a second sensing beam or a beam set, it is determined that a sensing beam identifier or a beam set identifier changes.
That is, the transmission beam of the UE is not changed, but the sending beam or beam set corresponding to the transmission beam is switched to a new sending beam or beam set.
To sum up, in the LBT channel monitoring result process, the sensing (sensing) beam or the beam set corresponding to the LBT channel monitoring result is synchronously determined, so as to determine whether the beam corresponding to the channel monitoring result changes, avoid the problem of low LBT accuracy caused by the fact that different beams count or time on the same counter/timer correspondingly, and solve the counting/time of directional LBT.
Fig. 5 is a block diagram of a communication device according to an exemplary embodiment of the present application, and as shown in fig. 5, the communication device includes:
a processing module 510 configured to determine a channel listening result of a listen before talk, LBT; and updating an LBT counter or a timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier.
In an optional embodiment, the processing module 510 is further configured to set the LBT counter to zero in response to a change of a sensing beam identifier or a beam set identifier corresponding to the channel listening result;
alternatively, the first and second electrodes may be,
the processing module 510 is further configured to stop the timer in response to a change in the perceived beam identifier or the beam set identifier corresponding to the channel monitoring result.
In an optional embodiment, each LBT channel listening result includes a corresponding sensing beam identifier or beam set identifier;
alternatively, the first and second electrodes may be,
and responding to a channel monitoring result of the LBT for indicating channel monitoring failure, wherein the channel monitoring result of the LBT corresponds to a sensing beam identifier or a beam set identifier.
In an optional embodiment, the processing module 510 is further configured to determine that the perceptual beam identifier or the beam set identifier changes when the perceptual beam identifier or the beam set identifier for the channel listening of the LBT is different from the perceptual beam identifier or the beam set identifier corresponding to the channel listening result.
In an optional embodiment, the processing module 510 is further configured to determine that the perceptual beam identifier or the beam set identifier changes when the transmission beam of the LBT is switched from a first beam to a second beam, and a perceptual beam or a beam set corresponding to the first beam is different from a perceptual beam or a beam set corresponding to the second beam;
alternatively, the first and second electrodes may be,
the processing module 510 is further configured to determine that the perceptual beam identifier or the beam set identifier changes when a perceptual beam or a beam set corresponding to a transmit beam of a listen-before-talk LBT is switched from a first perceptual beam or a beam set to a second perceptual beam or a beam set.
In an optional embodiment, the processing module 510 is further configured to update the perceptual beam identifier or the beam set identifier corresponding to the channel listening result to a perceptual beam identifier or a beam set identifier for which the current listen-before-talk, LBT, channel listening is directed.
In an optional embodiment, the LBT counters comprise a first LBT counter corresponding to a physical uplink control channel, PUCCH, and a second LBT counter corresponding to a physical uplink shared channel, PUSCH;
the first counter and the second counter count respectively corresponding to the PUCCH and the PUSCH.
In an optional embodiment, the timers include a first timer corresponding to the PUCCH and a second timer corresponding to the PUSCH;
the first timer and the second timer are respectively clocked corresponding to the PUCCH and the PUSCH.
In an optional embodiment, the processing module 510 is further configured to update an LBT counter or timer corresponding to at least one sensing beam identifier or beam set identifier according to the channel listening result.
In an optional embodiment, the processing module 510 is further configured to, in a case that the channel listening result is used to indicate that channel listening fails, count an LBT counter corresponding to the sensing beam identifier or the beam set identifier by 1.
In an optional embodiment, the processing module 510 is further configured to determine that sustained LBT of the sensing beam identifier or the beam set identifier fails when the count of the LBT counter corresponding to the sensing beam identifier or the beam set identifier reaches a count threshold.
In an optional embodiment, the processing module 510 is further configured to trigger a random access procedure when it is determined that the persistent LBT of the perceived beam identifier or beam set identifier fails.
In an optional embodiment, the processing module 510 is further configured to generate indication information indicating a failure of sustained LBT;
the device further comprises:
a sending module 520, configured to report the indication information through an uplink resource, where the indication information includes the sensing beam identifier or the beam set identifier.
In an optional embodiment, the indication information further includes a listening channel corresponding to the persistent LBT failure, where the listening channel includes a PUCCH or a PUSCH.
In an optional embodiment, the processing module 510 is further configured to trigger a persistent LBT failure of the current bandwidth portion BWP if the sensing beam identifier or the beam set identifier on the current BWP both trigger the persistent LBT failure.
In an optional embodiment, the processing module 510 is further configured to restart a timer corresponding to the sensing beam identifier or the beam set identifier if the channel monitoring result indicates that channel monitoring fails.
In an optional embodiment, the processing module 510 is further configured to set a counter corresponding to the perceived beam identifier or the beam set identifier to zero when the timer corresponding to the perceived beam identifier or the beam set identifier reaches a timing threshold.
To sum up, in the LBT channel monitoring result process, the sensing (sensing) beam or the beam set corresponding to the LBT channel monitoring result is synchronously determined, so as to determine whether the beam corresponding to the channel monitoring result changes, avoid the problem of low LBT accuracy caused by the fact that different beams count or time on the same counter/timer correspondingly, and solve the counting/time of directional LBT.
It should be noted that: the communication apparatus provided in the above embodiment is only illustrated by dividing the functional modules, and in practical applications, the functions may be allocated to different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules, so as to complete all or part of the functions described above. In addition, the communication apparatus and the communication method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
Fig. 6 shows a schematic structural diagram of a terminal provided in an exemplary embodiment of the present disclosure, where the terminal includes: a processor 601, a receiver 602, a transmitter 603, a memory 604, and a bus 605.
The processor 601 includes one or more processing cores, and the processor 601 executes various functional applications and information processing by running software programs and modules.
The receiver 602 and the transmitter 603 may be implemented as one communication component, which may be a communication chip.
The memory 604 is coupled to the processor 601 by a bus 605.
The memory 604 may be used to store at least one instruction that the processor 601 is configured to execute to implement the various steps in the above-described method embodiments.
Further, memory 604 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: magnetic or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), Static Random Access Memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM).
In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium, such as a memory, comprising instructions executable by a processor of a terminal to perform a method performed by a terminal side in the above-described communication method. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer-readable storage medium, in which instructions, when executed by a processor of a terminal, enable the terminal to perform the above-described communication method.
Fig. 7 is a block diagram illustrating an access network apparatus 1100 in accordance with an example embodiment. The access network device 1100 may be a base station.
The access network device 1100 may include: a processor 1101, a receiver 1102, a transmitter 1103, and a memory 1104. The receiver 1102, the transmitter 1103, and the memory 1104 are each coupled to the processor 1101 by a bus.
The processor 1101 includes one or more processing cores, and the processor 1101 executes software programs and modules to perform the method performed by the access network device in the communication method provided by the embodiment of the present disclosure. The memory 1104 may be used to store software programs and modules. In particular, memory 1104 may store an operating system 1141, and application program modules 1142 required for at least one function. The receiver 1102 is configured to receive communication data transmitted by other devices, and the transmitter 1103 is configured to transmit communication data to other devices.
An exemplary embodiment of the present disclosure also provides a communication system, including: a terminal and an access network device;
the terminal comprises the communication device provided by the embodiment shown in fig. 5; alternatively, the terminal includes the terminal provided in the embodiment shown in fig. 6;
the access network device includes the access network device provided in the embodiment shown in fig. 7.
An exemplary embodiment of the present disclosure also provides a communication system, including: a terminal and an access network device;
the terminal comprises the terminal provided by the embodiment shown in fig. 6;
the access network device includes the access network device provided in the embodiment shown in fig. 7.
An exemplary embodiment of the present disclosure also provides a computer-readable storage medium, where at least one instruction, at least one program, a code set, or a set of instructions is stored in the computer-readable storage medium, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the steps executed by the terminal or the access network device in the communication method provided by the foregoing various method embodiments.
It should be understood that reference to "a plurality" herein means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (32)

1. A communication method is applied to a terminal, and the method comprises the following steps:
determining a channel monitoring result of Listen Before Talk (LBT);
and updating an LBT counter or a timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier.
2. The method of claim 1, wherein the updating an LBT counter or timer according to the channel listening result and the corresponding sensing beam or beam set identifier comprises:
responding to the change of the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result, and setting the LBT counter to be zero;
alternatively, the first and second electrodes may be,
and stopping the timer in response to the change of the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result.
3. The method of claim 2,
the channel monitoring result of the LBT comprises a corresponding sensing beam identifier or a beam set identifier;
alternatively, the first and second electrodes may be,
and responding to the channel monitoring result of the LBT indicating that the channel monitoring fails, wherein the channel monitoring result of the LBT corresponds to a sensing beam identifier or a beam set identifier.
4. The method of claim 2, further comprising:
and updating the sensing beam identifier or beam set identifier corresponding to the channel monitoring result to the sensing beam identifier or beam set identifier for the current LBT channel monitoring.
5. The method of claim 2,
the LBT counters comprise a first LBT counter corresponding to a Physical Uplink Control Channel (PUCCH) and a second LBT counter corresponding to a Physical Uplink Shared Channel (PUSCH);
the first counter and the second counter count respectively corresponding to the PUCCH and the PUSCH.
6. The method of claim 2,
the timers comprise a first timer corresponding to the PUCCH and a second timer corresponding to the PUSCH;
the first timer and the second timer are respectively clocked corresponding to the PUCCH and the PUSCH.
7. The method of claim 1, wherein the updating an LBT counter or a timer according to the channel listening result and the corresponding sensing beam identifier or beam set identifier comprises:
and updating an LBT counter or a timer corresponding to at least one sensing beam identifier or beam set identifier according to the channel monitoring result.
8. The method according to claim 7, wherein the updating an LBT counter or timer corresponding to at least one of a sensing beam id or a beam set id according to the channel listening result comprises:
and under the condition that the channel monitoring result is used for indicating that the channel monitoring fails, counting and adding 1 to an LBT counter corresponding to the sensing beam identifier or the beam set identifier.
9. The method of claim 8, further comprising:
when the count of the LBT counter corresponding to the sensing beam identification or the beam set identification reaches a count threshold value, determining that the continuous LBT of the sensing beam identification or the beam set identification fails.
10. The method of claim 9, further comprising:
and triggering a random access process when determining that the continuous LBT of the sensing beam identification or the beam set identification fails.
11. The method of claim 10, further comprising:
generating indication information for indicating a sustained LBT failure;
and reporting the indication information through uplink resources, wherein the indication information comprises the sensing beam identifier or the beam set identifier.
12. The method of claim 11,
the indication information further includes a monitored channel corresponding to the persistent LBT failure, and the monitored channel includes a PUCCH or a PUSCH.
13. The method of claim 9, further comprising:
and if the sensing beam identification or the beam set identification on the current bandwidth part BWP triggers the continuous LBT failure, triggering the continuous LBT failure of the current BWP.
14. The method according to claim 7, wherein the updating an LBT counter or timer corresponding to at least one of a sensing beam id or a beam set id according to the channel listening result comprises:
and restarting a timer corresponding to the sensing beam identifier or the beam set identifier under the condition that the channel monitoring result is used for indicating the channel monitoring failure.
15. The method of any of claims 1 to 7, further comprising:
and when the timer corresponding to the perception beam identifier or the beam set identifier reaches a timing threshold value, setting a counter corresponding to the perception beam identifier or the beam set identifier to zero.
16. A communications apparatus, the apparatus comprising:
a processing module configured to determine a channel listening result of a listen before talk, LBT; and updating an LBT counter or a timer according to the channel monitoring result and the corresponding sensing beam identifier or beam set identifier.
17. The apparatus of claim 16, wherein the processing module is further configured to set the LBT counter to zero in response to a change in a perceived beam identifier or a beam set identifier corresponding to the channel listening result;
alternatively, the first and second electrodes may be,
the processing module is further configured to stop the timer in response to a change of the sensing beam identifier or the beam set identifier corresponding to the channel monitoring result.
18. The apparatus of claim 17,
the channel monitoring result of the LBT comprises a corresponding sensing beam identifier or a beam set identifier;
alternatively, the first and second electrodes may be,
and responding to the channel monitoring result of the LBT indicating that the channel monitoring fails, wherein the channel monitoring result of the LBT corresponds to a sensing beam identifier or a beam set identifier.
19. The apparatus of claim 17, wherein the processing module is further configured to update the sensing beam identifier or beam set identifier corresponding to the channel listening result to a sensing beam identifier or beam set identifier for which the current LBT channel listening is directed.
20. The apparatus of claim 17,
the LBT counters comprise a first LBT counter corresponding to a Physical Uplink Control Channel (PUCCH) and a second LBT counter corresponding to a Physical Uplink Shared Channel (PUSCH);
the first counter and the second counter count respectively corresponding to the PUCCH and the PUSCH.
21. The apparatus of claim 17,
the timers comprise a first timer corresponding to the PUCCH and a second timer corresponding to the PUSCH;
the first timer and the second timer are respectively clocked corresponding to the PUCCH and the PUSCH.
22. The apparatus of claim 16, wherein the processing module is further configured to update an LBT counter or a timer corresponding to at least one of a sensing beam identifier or a beam set identifier according to the channel listening result.
23. The apparatus of claim 22, wherein the processing module is further configured to count an LBT counter corresponding to the sensing beam id or the beam set id by 1 if the channel listening result indicates a channel listening failure.
24. The apparatus of claim 23, wherein the processing module is further configured to determine that sustained LBT of the perceptual beam identity or beam set identity fails when an LBT counter count corresponding to the perceptual beam identity or beam set identity reaches a count threshold.
25. The apparatus of claim 24, wherein the processing module is further configured to trigger a random access procedure when it is determined that persistent LBT of the perceptual beam identity or beam set identity fails.
26. The apparatus of claim 25, wherein the processing module is further configured to generate indication information indicating a sustained LBT failure;
the device further comprises:
and the sending module is used for reporting the indication information through uplink resources, wherein the indication information comprises the sensing beam identifier or the beam set identifier.
27. The apparatus of claim 26,
the indication information further includes a monitored channel corresponding to the persistent LBT failure, and the monitored channel includes a PUCCH or a PUSCH.
28. The apparatus of claim 24, wherein the processing module is further configured to trigger a persistent LBT failure for the current bandwidth portion BWP if either a perceptual beam identification or a beam set identification on the current BWP triggers the persistent LBT failure.
29. The apparatus of claim 22, wherein the processing module is further configured to restart a timer corresponding to the sensing beam identifier or the beam set identifier if the channel monitoring result indicates a channel monitoring failure.
30. The apparatus according to any of claims 16 to 22, wherein the processing module is further configured to set a counter corresponding to the perceived beam identifier or the beam set identifier to zero when the timer corresponding to the perceived beam identifier or the beam set identifier reaches a timing threshold.
31. A terminal, characterized in that the terminal comprises:
a processor;
a transceiver coupled to the processor;
wherein the processor is configured to load and execute executable instructions to implement the communication method of any of claims 1 to 15.
32. A computer-readable storage medium, having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the communication method according to any one of claims 1 to 15.
CN202180004497.2A 2021-12-08 2021-12-08 Communication method, device, equipment and readable storage medium Pending CN114391238A (en)

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WO2016084182A1 (en) * 2014-11-27 2016-06-02 富士通株式会社 Base station, communication system, and reference signal transmission method
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