CN115997465A

CN115997465A - Communication method, device, equipment and storage medium

Info

Publication number: CN115997465A
Application number: CN202280004970.1A
Authority: CN
Inventors: 江小威
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-21
Also published as: WO2024098433A1

Abstract

The disclosure relates to a communication method, device, equipment and storage medium, comprising: and responding to the terminal to access the service cell by adopting the specific frequency band, and sending random access information to the network equipment, wherein the random access information comprises LBT failure information for describing that the terminal listens before LBT fails in the random access process. By transmitting random access information including LBT failure condition to the network device when the specific frequency band is accessed to the serving cell. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

Description

Communication method, device, equipment and storage medium

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a communication method, a device, equipment and a storage medium.

Background

Currently, in some areas, when data transmission is performed by using a partial frequency band for long term evolution (long term evolution, LTE) or a new radio Network (NR), listen before talk (listen before talk, LBT) may be performed before data is transmitted. In general, the network device may configure whether the terminal performs LBT before transmitting data, or whether the terminal performs LBT failure detection and recovery.

The terminal establishes connection with the network equipment in a random access mode and sends data to the network equipment. The terminal may be configured to perform LBT first when performing random access. Random access of the terminal can be performed after the LBT is successful. However, the random access information transmitted by the terminal at present includes LBT failure situations of each beam (beam), so that the communication cost is high. Therefore, how to guarantee the failure of transmitting LBT and reduce the communication cost becomes a problem to be solved.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a communication method, apparatus, device, and storage medium.

According to a first aspect of embodiments of the present disclosure, there is provided a communication method, where the method is applied to a terminal, including: and responding to the terminal accessing the service cell by adopting the specific frequency band, and sending random access information to the network equipment, wherein the random access information comprises information for describing the LBT failure of the terminal after listening in the random access process.

In one embodiment, in response to the specific frequency band being the frequency range FR 2-2, the LBT failure information is LBT failure information corresponding to each downlink beam, the terminal performs random access attempt by using random access resources associated with the downlink beam.

In one embodiment, the LBT failure information includes first LBT failure number information indicating a number of LBT failures for random access attempts using downlink beam-associated random access resources.

In one embodiment, the LBT failure information includes a beam identity, which is a synchronization signal block SSB identity and/or a channel state information reference signal CSI-RS identity.

In one embodiment, in response to the specific frequency band being FR 1/FR 2-1, the LBT failure information includes second LBT failure number information corresponding to the downlink beam, where the second LBT failure number information corresponding to the downlink beam indicates a total number of LBT failures in the random access procedure.

In one embodiment, the downlink sub-beam includes a downlink sub-beam, where the downlink sub-beam is a beam for performing a random access attempt in at least one random access procedure corresponding to the same LBT failure recovery procedure.

In one embodiment, each random access procedure in the random access information includes at least one of: information corresponding to each random access attempt; a beam identifier corresponding to the random access attempt; downlink reference signal received power DL RSRP of SSB; the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A; sub-carrier spacing SCS information of partial bandwidth BWP.

In one embodiment, each random access procedure in the random access information does not include at least one of: information corresponding to each random access attempt; a beam identifier corresponding to the random access attempt; downlink reference signal received power DL RSRP of SSB; the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A; sub-carrier spacing SCS information of partial bandwidth BWP.

In one embodiment, each random access procedure in the random access information is carried by random access public information RA-information common or a newly added information field.

In one embodiment, each random access attempt in each random access procedure in the random access information, beam information corresponding to the random access attempt, and/or DL RSRP of the SSB is carried through a random access information list perrainfoslist or a newly added information field.

In one embodiment, the random access information includes third LBT failure number information indicating a number of LBT failures for random access attempts at the downlink sub-beam associated random access resource.

In one embodiment, the beam identifier corresponding to the last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam are carried by RA-information common or perRAInfoList.

In one embodiment, the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam are carried by the newly added information field, RA-information common or perRAInfoList.

In one embodiment, in response to receiving the configuration information sent by the network device, the configuration information instructs the terminal to perform LBT before sending data to the network device, and the method further includes: based on the configuration information, determining the beam identification in a random access process which is not the last time in the LBT failure recovery flow.

In one embodiment, in response to receiving configuration information sent by the network device, the configuration information instructs the terminal to perform LBT before sending data to the network device; the random access information comprises first LBT failure times information and/or third LBT failure times information; alternatively, the random access information includes second LBT failure number information and/or third LBT failure number information.

According to a second aspect of embodiments of the present disclosure, there is provided a communication apparatus, a method applied to a terminal, including: and responding to the terminal accessing the service cell, and sending random access information to the network equipment, wherein the random access information is used for describing at least one random access process corresponding to the terminal listen before LBT failure recovery flow.

In one embodiment, each random access procedure in the random access information includes at least one of: information corresponding to each random access attempt; a beam identifier corresponding to the random access attempt; downlink reference signal received power DL RSRP of the synchronization signal block SSB; the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A; sub-carrier spacing SCS information of partial bandwidth BWP.

In one embodiment, each random access procedure in the random access information does not include at least one of: information corresponding to each random access attempt; a beam identifier corresponding to the random access attempt; downlink reference signal received power DL RSRP of the synchronization signal block SSB; the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A; sub-carrier spacing SCS information of partial bandwidth BWP.

In one embodiment, in response to the terminal accessing the serving cell in the frequency range FR 2-2, the beam identifier corresponding to the last random access procedure in the LBT failure recovery procedure and the LBT failure times information corresponding to each beam are carried by RA-information common or perRAInfoList.

In one embodiment, in response to the terminal accessing the serving cell by using FR 2-2, the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure times information corresponding to each beam are carried by the newly added information field, RA-information common or perRAInfoList.

In one embodiment, in response to the terminal accessing the serving cell using FR 2-2 and receiving configuration information sent by the network device, the configuration information indicates the terminal to perform LBT before sending data to the network device, the method further comprises: based on the configuration information, determining the beam identification in a random access process which is not the last time in the LBT failure recovery flow.

In one embodiment, the beam identity comprises an SSB identity and/or a channel state information reference signal CSI-RS identity.

In one embodiment, in response to the terminal employing the FR 2-2 access serving cell, the random access information includes first LBT failure number information indicating a number of LBT failures for making random access attempts on the downlink beam.

In one embodiment, in response to the terminal accessing the serving cell using FR 1 or FR 2-1, the random access information includes second LBT failure number information; the second LBT failure times information is LBT failure times information corresponding to each random access process and indicates the total LBT failure times in the random access process; or, the second LBT failure number information is the LBT failure number information corresponding to each LBT failure recovery procedure, and indicates the total number of LBT failures in all random access procedures associated with the LBT failure recovery procedure.

According to a third aspect of embodiments of the present disclosure, there is provided a communication method, the method being applied to a network device, comprising: and receiving random access information sent by the terminal, wherein the terminal accesses the service cell by adopting a specific frequency band, and the random access information comprises information for describing LBT failure information sent by the terminal after listening in the random access process.

In one embodiment, in response to sending configuration information to the terminal, the configuration information instructs the terminal to perform LBT before sending data to the network device; the LBT failure information includes a beam identity determined by the terminal in a non-last random access procedure in the LBT failure recovery procedure.

In one embodiment, in response to sending configuration information to the terminal, the configuration information instructs the terminal to perform LBT before sending data to the network device; the random access information comprises first LBT failure times information and/or third LBT failure times information; alternatively, the random access information includes second LBT failure number information and/or third LBT failure number information.

According to a fourth aspect of embodiments of the present disclosure, there is provided a communication method, the method being applied to a network device, including: and receiving random access information sent by the terminal accessing the service cell, wherein the random access information is used for describing at least one random access process corresponding to the terminal in the Listen Before Talk (LBT) failure recovery flow.

In one embodiment, in response to a terminal accessing a serving cell using FR 2-2 and receiving configuration information sent by a network device, the configuration information instructs the terminal to perform LBT before sending data to the network device; the LBT failure information includes a beam identity determined by the terminal in a non-last random access procedure in the LBT failure recovery procedure.

According to a fifth aspect of embodiments of the present disclosure, there is provided a communication apparatus, the apparatus being configured in a terminal, the apparatus comprising: and the sending module is used for responding to the terminal to access the service cell by adopting the specific frequency band, and sending random access information to the network equipment, wherein the random access information comprises information for describing the LBT failure of the terminal after listening in the random access process.

In one embodiment, in response to receiving the configuration information sent by the network device, the configuration information instructs the terminal to perform LBT before sending data to the network device, and the apparatus further includes: and the determining module is used for determining the beam identification in the random access process which is not the last time in the LBT failure recovery flow based on the configuration information.

According to a sixth aspect of embodiments of the present disclosure, there is provided a communication apparatus, the apparatus being configured in a terminal, the apparatus comprising: and the sending module is used for responding to the access of the terminal to the service cell and sending random access information to the network equipment, wherein the random access information is used for describing at least one random access process corresponding to the terminal in the LBT failure recovery process.

In one implementation, in response to the terminal accessing the serving cell using FR 2-2, the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure times information corresponding to each beam are carried by the newly added information field, RA-information common or perRAInfoList.

In one embodiment, in response to the terminal accessing the serving cell using FR 2-2 and receiving configuration information sent by the network device, the configuration information indicates the terminal to perform LBT before sending data to the network device, the apparatus further includes: and the determining module is used for determining the beam identification in the random access process which is not the last time in the LBT failure recovery flow based on the configuration information.

According to a seventh aspect of embodiments of the present disclosure, there is provided a communication apparatus configured to a network device, the apparatus comprising: and the receiving module is used for receiving random access information sent by the terminal, wherein the terminal adopts a specific frequency band to access the service cell, and the random access information comprises information for describing LBT failure information sent by the terminal after listening in the random access process.

In one embodiment, the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam are carried by a newly added information field, RA-information common or perRAInfoList.

According to an eighth aspect of embodiments of the present disclosure, there is provided a communication apparatus, the apparatus being configured to a network device, the apparatus comprising: and the receiving module is used for receiving random access information sent by the terminal access service cell, wherein the random access information is used for describing at least one random access process corresponding to the terminal in the LBT failure recovery flow.

According to a ninth aspect of embodiments of the present disclosure, there is provided a communication device comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: performing any of the methods of the first aspect.

According to a tenth aspect of embodiments of the present disclosure, there is provided a communication device comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: any of the methods of the second aspect is performed.

According to an eleventh aspect of embodiments of the present disclosure, there is provided a communication device comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: performing any of the methods of the third aspect.

According to a twelfth aspect of embodiments of the present disclosure, there is provided a communication device comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: performing any of the methods of the fourth aspect.

According to a thirteenth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a terminal, enables the terminal to perform any one of the methods of the first aspect.

According to a fourteenth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium, which when executed by a processor of a terminal, enables the terminal to perform any one of the methods of the second aspect.

According to a fifteenth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a network device, causes the network device to perform any one of the methods of the third aspect.

According to a sixteenth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a network device, causes the network device to perform any one of the methods of the fourth aspect.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: by transmitting random access information including LBT failure condition to the network device when the specific frequency band is accessed to the serving cell. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of a wireless communication system, according to an example embodiment.

Fig. 2 is a flow chart of a communication method according to an exemplary embodiment.

Fig. 3 is a flow chart illustrating another communication method according to an exemplary embodiment.

Fig. 4 is a flow chart illustrating yet another communication method according to an exemplary embodiment.

Fig. 5 is a flow chart illustrating yet another communication method according to an exemplary embodiment.

Fig. 6 is a flow chart illustrating another communication method according to an exemplary embodiment.

Fig. 7 is a flow chart illustrating yet another communication method according to an exemplary embodiment.

Fig. 8 is a schematic diagram of a communication device, according to an example embodiment.

Fig. 9 is a schematic diagram of another communication device, shown according to an example embodiment.

Fig. 10 is a schematic diagram of yet another communication device, shown according to an exemplary embodiment.

Fig. 11 is a schematic diagram of yet another communication device, shown according to an exemplary embodiment.

Fig. 12 is a schematic diagram of a communication device, according to an example embodiment.

Fig. 13 is a schematic diagram of another communication device shown in accordance with an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure.

The communication method according to the present disclosure may be applied to the wireless communication system 100 shown in fig. 1. The network system may include a network device 110 and a terminal 120. It will be appreciated that the wireless communication system shown in fig. 1 is only schematically illustrated, and that other network devices may be included in the wireless communication system, for example, a core network device, a wireless relay device, a wireless backhaul device, etc., which are not shown in fig. 1. The embodiments of the present disclosure do not limit the number of network devices and the number of terminals included in the wireless communication system.

It is further understood that the wireless communication system of the embodiments of the present disclosure is a network that provides wireless communication functionality. The wireless communication system may employ different communication techniques such as code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency-Division Multiple Access, OFDMA), single Carrier frequency division multiple access (SC-FDMA), carrier sense multiple access/collision avoidance (Carrier Sense Multiple Access with Collision Avoidance). Networks may be classified into 2G (english: generation) networks, 3G networks, 4G networks, or future evolution networks, such as fifth Generation wireless communication system (The 5th Generation Wireless Communication System,5G) networks, and 5G networks may also be referred to as NRs, according to factors such as capacity, rate, delay, etc. of different networks. For convenience of description, the present disclosure will sometimes refer to a wireless communication network simply as a network.

Further, the network device 110 referred to in this disclosure may also be referred to as a radio access network device. The radio access network device may be: a base station, an evolved Node B (eNB), a home base station, an Access Point (AP) in a wireless fidelity (Wireless Fidelity, WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission Point (Transmission Point, TP), or a transmission receiving Point (transmission and receiving Point, TRP), etc., or may be a gNB in an NR system, or may also be a component or a part of a device that forms a base station, etc. In the case of a vehicle networking (V2X) communication system, the network device may also be an in-vehicle device. It should be understood that in the embodiments of the present disclosure, the specific technology and specific device configuration adopted by the network device are not limited.

Further, the Terminal 120 in the present disclosure may also be referred to as a Terminal device, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., and is a device for providing voice and/or data connectivity to a User, for example, the Terminal may be a handheld device, an in-vehicle device, etc. having a wireless connection function. Currently, some examples of terminals are: a smart Phone (Mobile Phone), a pocket computer (Pocket Personal Computer, PPC), a palm top computer, a personal digital assistant (Personal Digital Assistant, PDA), a notebook computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc. In addition, in the case of a vehicle networking (V2X) communication system, the terminal device may also be an in-vehicle device. It should be understood that the embodiments of the present disclosure are not limited to the specific technology and specific device configuration adopted by the terminal.

In the disclosed embodiment, the network device 110 and the terminal 120 may employ any feasible wireless communication technology to implement mutual data transmission. The transmission channel corresponding to the network device 110 sending data to the terminal 120 is called a Downlink (DL) channel, and the transmission channel corresponding to the terminal 120 sending data to the network device 110 is called an Uplink (UL) channel. It is to be appreciated that the network devices involved in embodiments of the present disclosure may be base stations. Of course, the network device may be any other possible network device, and the terminal may be any possible terminal, which is not limited by the present disclosure.

Currently, when data transmission of LTE or NR is performed using a partial frequency band in some areas, LBT may be performed before data is transmitted. In general, the network device may configure whether the terminal performs LBT before transmitting data, or whether the terminal performs LBT failure detection and recovery.

If the network device configures the terminal to perform LBT failure detection and recovery, the terminal detects a continuous LBT failure with a partial Bandwidth (BWP) granularity. For a special cell (SpCell), if a persistent LBT failure (failure) is detected on one BWP of one SpCell, the terminal may switch to initiate random access on another BWP of the SpCell configured with physical random access channel (physical random access channel, PRACH) resources. The SpCell may be a primary cell (PCell) or a primary secondary cell (primary secondary cell, PScell).

Meanwhile, if persistent LBT failure is not canceled, and if the terminal has available UL resources. The terminal may generate an LBT failure medium access control element (medium access control control element, MAC CE). The MAC CE may indicate all serving cell identities (identity document, id) where LBT failure occurs. Of course, if the random access fails, the terminal may select another BWP with PRACH resource again to initiate the random access. It will be appreciated that the terminal will cancel consistent LBT failure triggered on all BWP on (cancel) SpCell only if the random access is successful. Notably, the report of LBT failure MAC CE does not trigger the cancellation of consistent LBT failure on each BWP of the SpCell. When the terminal tries all BWP of the serving cell, consistent LBT failure occurs, if the serving cell is a SpCell, the medium access control (medium access control, MAC) layer of the terminal indicates LBT failure to the radio resource control (radio resource control, RRC) layer, and the terminal declares (unclaries) a primary cell group (master cell group, MCG) or secondary cell group (secondary cell group, SCG) radio link failure (radio link failure, RLF).

Currently, a terminal may access NR cells on the FR 1 band, FR 2-1 band, and FR 2-2 band, and their respective frequency ranges may be as shown in table 1.

TABLE 1

Among them, there are some differences between LBT on the FR 2-2 band and LBT on the FR 1 band and the FR 2-1 band. Because the FR 2-2 band has a much higher frequency than the other bands. Therefore, the LBT of the terminal over the FR 2-2 band is directional. Namely, signal detection (sensing) is performed in one direction. While on the FR 1 band and the FR 2-1 band, the LBT of the terminal is omni-directional, i.e., 360 degrees send the signal.

For directional LBT, beam (beam) space for the terminal to send needs to be able to cover the beam used for the terminal transmission. The beam used for the uplink transmission by the terminal also depends on the downlink beam transmitted by the network device selected by the terminal. That is, when the terminal receives the downstream beam sent by the network device, it determines a receiving beam of the terminal. The receiving beams used by the terminal when receiving different beams issued by the network device may be the same or different. When the terminal determines to receive a beam, for a terminal supporting beam communication (corruspore), data is transmitted using a transmission beam corresponding to the received beam. When the terminal changes the received downstream beam of the network device. The reception beam of the terminal will change. The corresponding send beam is likely to change as well. The terminal sending beam will also follow. The downstream beam transmitted by the network device may be identified by a synchronization signal block (synchronization signal block, SSB) and/or an index (index) of a channel state information reference signal (CSI-RS). Therefore, when the terminal performs random access by using random access resources associated with different downlink beams sent by the network device, the sending beam may be different according to the selected downlink beam. Resulting in different results for LBT. It is therefore necessary to indicate for each (per) beam the corresponding LBT failure situation.

But at present, the terminal indicates a corresponding LBT failure condition for each beam, and for omni-directional LBT, whether the downlink beam selected by the terminal changes or not, the terminal performs the sending beam is omni-directional. The sending result of the terminal will not change. Obviously, the current approach may make communication costly. Therefore, how to guarantee the failure of transmitting LBT and reduce the communication cost becomes a problem to be solved.

Accordingly, the present disclosure provides a communication method, apparatus, device, and storage medium for transmitting random access information including an LBT failure case to a network device when a specific frequency band is accessed to a serving cell. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

Fig. 2 is a flow chart of a communication method according to an exemplary embodiment, and as shown in fig. 2, the method is applied to a terminal, and may include the following steps:

in step S11, random access information is transmitted to the network device in response to the terminal accessing the serving cell using the specific frequency band.

In some embodiments, the terminal may send random access information to the network device in response to itself accessing the serving cell using a particular frequency band. The random access information may include LBT failure information. The LBT failure information is used to describe the LBT failure of the terminal in the random access process.

In some embodiments, the random access information may also include any other information that may be involved in the random access procedure.

In some embodiments, when the terminal needs to communicate with the network device, the terminal may initiate connection establishment to the network device using a specific frequency band. In the connection establishment process, the terminal can establish connection with the network device in a random access mode. And the terminal may be configured to perform LBT before transmitting data. The terminal therefore performs LBT detection before random access begins. And when the LBT is detected to be successful, the random access is carried out, and when the random access is successful, the connection establishment can be considered to be successful. The terminal may send random access information to the network device in case the connection establishment is successful or unsuccessful. The random access information may include any information that may be involved in the random access procedure. Such as LBT failure information for describing LBT failure of the terminal in the random access procedure.

For example, when reporting information related to random access to a network device, the terminal may record random access information in a connection establishment failure report. The connection establishment failure report is generated by the terminal when the connection establishment fails. It can be appreciated that reporting, i.e. the terminal, sends information, data etc. to the network device.

For another example, in case of MCG RLF occurrence, if RLF is caused by random access failure or RLF is caused by terminal handover serving cell failure, the above random access information may be carried in an RLF report. The RLF report may be generated by the terminal in case of MCG RLF.

For another example, when SCG RLF occurs, the above random access information is carried in SCG failure information. The SCG failure information may be generated by the terminal when SCG RLF occurs.

For another example, in case that the terminal random access is successful, the above random access information may be carried in a random access report describing the success of the random access. Wherein the random access report describing the success of the random access may be generated by the terminal in case of the success of the random access.

For another example, when the terminal performs a serving cell handover and the handover is successful, the random access information is carried in a handover success report. Wherein the handover success report may be generated by the terminal in case of successful handover of the serving cell.

For another example, in case the PScell addition or change is successful, the random access information is carried in the PScell addition or change success report. Wherein, the PScell addition or change success report may be generated by the terminal in case of successful PScell addition or change.

The present disclosure provides for transmitting random access information including LBT failure conditions to a network device when a particular frequency band is accessed to a serving cell. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

In the communication method provided by the embodiment of the disclosure, in response to the specific frequency band being the frequency range FR 2-2, the LBT failure information is the LBT failure information corresponding to each downlink beam, and the terminal performs random access attempt by using the random access resource associated with the downlink beam.

In some embodiments, the LBT failure information in the random access information is LBT failure information corresponding to each downlink beam in response to the terminal accessing the serving cell in FR 2-2. The downlink beam is a beam for the terminal to perform random access attempt by using the random access resource associated with the beam.

It can be understood that when the terminal uses FR 2-2 to access the serving cell, the terminal performs LBT detection for different downlink beams during the LBT detection in the random access process. That is, the terminal performs LBT detection for downlink beams in different directions. It can also be understood that the terminal performs random access attempts on downlink beams in different directions by using random access resources associated with the dependent beams, and performs LBT detection in each random access attempt. When the terminal detects that LBT on a certain downlink beam fails continuously for a plurality of times, it can be considered that LBT on the downlink beam fails. The number of continuous failures of LBT may be preset, or specified by a protocol, which is not limited in this disclosure.

When accessing to a service cell on an FR 2-2 frequency band, the method and the device send LBT failure information corresponding to each downlink beam to network equipment. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

In the communication method provided by the embodiment of the disclosure, the LBT failure information further includes first LBT failure frequency information. The first LBT failure number information indicates the number of LBT failures for random access attempts using the random access resources associated with the downlink beam.

In some embodiments, the LBT failure information transmitted by the terminal may include first LBT failure number information. The first LBT failure number information indicates the number of LBT failures of the terminal for random access attempts using the random access resources associated with the downlink beam. Wherein, the first LBT failure times information may correspond to a random access procedure.

It may be appreciated that a random access procedure may include multiple random access attempts, and when the number of random access attempts fails to reach a preset failure attempt threshold, the random access procedure may be considered to fail. One or more LBT detections may be made in one random access attempt. When the number of LBT failures reaches the LBT failure threshold, the random access attempt can be considered to fail.

For example, in one random access procedure, the number of LBT failures occurring in the random access procedure may be recorded for each random access attempt in the random access procedure.

For example, the number of LBT failures may be a total number of LBT failures corresponding to a plurality of random access attempts. As another example, the number of LBT failures may be based on each random access attempt, and the number of LBT failures of the corresponding random access attempt may be recorded separately.

The present disclosure sends first LBT failure number information to a network device when accessing a serving cell on an FR 2-2 band. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

In the communication method provided by the embodiment of the disclosure, the LBT failure information includes a beam identifier, where the beam identifier is a synchronization signal block SSB identifier and/or a channel state information reference signal CSI-RS identifier.

In some embodiments, the LBT failure information transmitted by the terminal may include a beam identification. The beam identity may be an SSB identity and/or a CSI-RS identity. Wherein the identification may be an id or index. For example, SSB is identified as SSB index; the CSI-RS is identified as CSI-RS index. It will be appreciated that this beam identifies the indicated beam, i.e. the downlink beam on which the random access attempt was made as mentioned above.

For example, in a random access procedure, for each random access attempt in the random access procedure, the terminal may record, according to a time sequence, SSB index and/or CSI-RS index corresponding to the SSB and/or CSI-RS random access resource to which the random access attempt is associated. As may be random access resources where multiple random access attempts are consecutive using the same SSB and/or CSI-RS associated to.

The present disclosure transmits a beam identification to a network device when accessing a serving cell on an FR 2-2 band, the beam identification indicating a downlink beam for which a random access attempt is made. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

In the communication method provided by the embodiment of the disclosure, in response to the specific frequency band being FR 1 or FR 2-1, the LBT failure information includes second LBT failure frequency information corresponding to the downlink beam, where the second LBT failure frequency information corresponding to the downlink beam indicates a total number of LBT failures in a random access process.

In some embodiments, in response to the terminal accessing the serving cell in the FR 1 band or the FR 2-1 band, the LBT failure information in the random access information may include second LBT failure number information corresponding to the downlink beam. The second LBT failure number information corresponding to the downlink beam indicates the total number of LBT failures in the random access procedure.

It is understood that the LBT detection performed on the FR 1 band or the FR 2-1 band may be an omni-directional LBT. Therefore, the LBT failure information may not carry beam information, and it is unnecessary to record the number of LBT failures corresponding to each beam. The LBT failure information may carry information of the second LBT failure number recorded as the total number of LBT failures in the random access procedure. The second LBT failure number may correspond to a sum of LBT failure numbers of all random access attempts in the random access procedure.

The present disclosure sends a second LBT failure number to a network device when accessing a serving cell on an FR 1 band or an FR 2-1 band. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

In the communication method provided by the embodiment of the disclosure, the downlink sub-beam includes a downlink sub-beam, where the downlink sub-beam is a beam that performs random access attempt in at least one random access process corresponding to the same LBT failure recovery procedure.

In some embodiments, the downlink sub-beams may be included in the downlink beam. The downlink sub-beam may represent a beam that performs random access attempt in at least one random access process corresponding to the same LBT failure recovery procedure.

For example, when a terminal fails in a continuous LBT, LBT recovery is performed by switching BWP and initiating a new random access attempt. In response to the terminal failing in a random access procedure, the terminal may perform an LBT failure recovery procedure. Such as attempting to switch another BWP and initiating a new random access procedure again until the random access is successful. Or consecutive LBT fails on all the attempted BWP, the terminal triggers RLF. Obviously, the random access procedure referred to above can be considered to be related to the same LBT failure recovery procedure.

It should be understood that if the terminal initiates the LBT failure recovery procedure is triggered based on the random access procedure, the random access procedure triggering the LBT failure recovery procedure should also be considered to be related to the LBT failure recovery procedure.

In some embodiments, the terminal may send random access information to the network device, where the LBT failure information in the random access information may be a beam for performing random access attempt in at least one random access procedure corresponding to the same LBT failure recovery procedure. For example, the terminal accesses the serving cell on the FR 2-2 band or the terminal accesses the serving cell on the FR 1 band or the FR 2-1 band.

In some embodiments, the beam identification is included in response to the random access information. The beam identity is for example SSB index and/or CSI-RS index. It can be appreciated that the SSB index and/or the CSI-RS index in this embodiment are used to indicate beams that belong to a random access attempt in at least one random access procedure corresponding to the same LBT failure recovery procedure.

For example. Each SSB index and/or CSI-RS index in this embodiment is used to indicate a beam, i.e. a downlink sub-beam, that belongs to a random access attempt in each random access procedure corresponding to the same LBT failure recovery procedure. Correspondingly, SSB and/or CSI-RS corresponding to the random access resource associated with the downlink sub-beam are indicated through SSB index and/or CSI-RS index.

The method and the device can send corresponding LBT failure conditions to the network equipment aiming at the beams belonging to the same LBT failure recovery flow. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

In the communication method provided by the embodiment of the present disclosure, each random access procedure in the random access information may include at least one of the following: information corresponding to each random access attempt; random access attempt corresponding LBT failure information; downlink reference signal received power DL RSRP of SSB; the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A; sub-carrier spacing SCS information of partial bandwidth BWP.

Wherein in some embodiments, the random access information may include information corresponding to each random access attempt.

It is understood that the random access information records corresponding information, such as a time stamp, corresponding communication parameters, and the like, when each random access attempt is performed.

In some embodiments, the random access information may include LBT failure information corresponding to the random access attempt.

In some embodiments, the random access information may include DL reference signal received power (reference signal receiving power, RSRP) of the SSB.

In some embodiments, the random access information may include frequency domain resource configuration information or subcarrier spacing information used by a random access procedure transmission message (Msg) 1 or Msg a.

It will be appreciated that message 1 is the first step message of a four step random access. Message a is the first message of a two-step random access. The content of Msg a may include the content of Msg 1 and Msg 3 of four-step random access.

In some embodiments, the random access information may include subcarrier spacing (subcarrier spacing, SCS) information of BWP.

The present disclosure provides a variety of different information that may be included in the random access information, so that the network device may better understand the procedure of the terminal for random access.

In the communication method provided by the embodiment of the present disclosure, each random access procedure in the random access information may not include at least one of the following: information corresponding to each random access attempt; random access attempt corresponding LBT failure information; downlink reference signal received power DL RSRP of SSB; the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A; sub-carrier spacing SCS information of partial bandwidth BWP.

In some embodiments, the random access information may not include information corresponding to each random access attempt.

In some embodiments, the random access information may not include LBT failure information corresponding to the random access attempt.

In some embodiments, the random access information may not include DL RSRP of the SSB.

In some embodiments, the random access information may not include frequency domain resource configuration information or subcarrier spacing information used by Msg 1 or Msg a.

In some embodiments, the random access information may not include SCS information of BWP.

The present disclosure provides a variety of different information that may not be included in the random access information, so that the network device may better understand the procedure of the terminal for random access.

In the communication method provided by the embodiment of the disclosure, each random access process in the random access information is carried by random access public information RA-information common or a newly added information domain.

In some embodiments, the information included in each corresponding random access procedure in the random access information, for example, information corresponding to each random access attempt; random access attempt corresponding LBT failure information; DL RSRP of SSB; the random access process sends frequency domain resource configuration information or subcarrier spacing information used by Msg 1 or Msg A; one or more items of SCS information of BWP. May be carried by random access public information (RA-information common).

In some embodiments, the information included in each corresponding random access procedure in the random access information, for example, information corresponding to each random access attempt; random access attempt corresponding LBT failure information; DL RSRP of SSB; the random access process sends frequency domain resource configuration information or subcarrier spacing information used by Msg 1 or Msg A; one or more items of SCS information of BWP. May be carried over the newly added information domain. It will be appreciated that this embodiment shows that the new information field is selected for carrying instead of being carried by RA-information common. For example, the new information field may carry a plurality of information included in each corresponding random access procedure in the random access information. Each newly added information field may independently carry information included in each corresponding random access procedure in the random access information.

The random access information of the present disclosure may or may not be carried by RA-information communication so that random access information including a plurality of different information may be transmitted to the network device, so that the network device may better understand the procedure of the terminal for random access.

In the communication method provided by the embodiment of the disclosure, each random access attempt in each random access process in the random access information, beam information corresponding to the random access attempt and/or DL RSRP of the SSB are carried through a random access information list perrainfoslist or a newly added information domain.

In some embodiments, each random access attempt in each random access procedure in the random access information, the beam information corresponding to the random access attempt, and/or DL RSRP of the SSB may be carried by a random access information list (perrainfoslist)

In some embodiments, each random access attempt in each random access procedure in the random access information, beam information corresponding to the random access attempt, and/or DL RSRP of the SSB may be carried by the newly added information field. It will be appreciated that this embodiment shows that instead of being carried over perRAInfoList, a new information domain is selected for carrying. For example, the new information field may carry a plurality of pieces of information in DL RSRP of SSB, each random access attempt included in each random access procedure corresponding to each random access information, beam information corresponding to the random access attempt. Each newly added information field may independently carry one of each random access attempt included in each random access procedure corresponding to the random access information, beam information corresponding to the random access attempt, and DL RSRP of the SSB.

The partial information in the random access information can be carried by or not through the perRAInfoList, so that the random access information comprising various different information is sent to the network equipment, and the network equipment can know the random access process of the terminal.

In the communication method provided by the embodiment of the disclosure, the random access information includes third LBT failure times information, where the third LBT failure times information indicates the LBT failure times of performing random access attempt on the random access resource associated with the downlink sub-beam.

In some embodiments, the random access information may include third LBT failure information. Wherein the third LBT failure information indicates the number of LBT failures of random access attempts performed on the random access resource associated with the downlink sub-beam.

For example, the number of LBT failures in this embodiment may be the total number of LBT failures corresponding to a plurality of random access attempts. Alternatively, the LBT failure times may be based on each random access attempt, and the LBT failure times of the corresponding random access attempts may be recorded separately.

The present disclosure sends third LBT failure times information based on the same LBT failure recovery procedure to the network device. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

In the communication method provided by the embodiment of the disclosure, the beam identifier corresponding to the last random access process in the LBT failure recovery flow and the LBT failure times information corresponding to each beam are carried by RA-information common or perRAInfoList.

In some embodiments, for the beam identifier corresponding to the last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam, the bearer may be carried by RA-information common or perRAInfoList.

For example, in the connection establishment failure report, the last random access perRAInfoList to last LBT failure trigger is recorded.

For another example, the RA-information common for the last random access triggered by the persistent LBT failure is recorded in one or more of the RLF report, the handover success report, the PSCell addition or change report.

The beam identifier corresponding to the last random access process in the LBT failure recovery flow and the LBT failure times information corresponding to each beam can be carried through RA-information common or perRAInfoList, and multiple acquisition modes are provided for network equipment to acquire the beam identifier and the LBT failure times information corresponding to each beam.

In the communication method provided by the embodiment of the disclosure, the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure times information corresponding to each beam are carried by the newly added information field, RA-information common or perRAInfoList.

In some embodiments, for the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam, the information may be carried by a new information field, RA-information common or perRAInfoList. It will be appreciated that this embodiment shows that instead of being carried over perRAInfoList, a new information domain is selected for carrying. For example, the new information field may carry the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and a plurality of pieces of information in the LBT failure number information corresponding to each beam. Each newly added information domain can independently bear the wave beam identification corresponding to the random access process of non-last time in the LBT failure recovery flow and one piece of information in the LBT failure times information corresponding to each wave beam.

In the LBT failure recovery flow, the beam identification corresponding to the non-last random access process and the LBT failure times information corresponding to each beam can be carried by RA-information common or perRAInfoList or not, and a plurality of acquisition modes are provided for the network equipment to acquire the beam identification and the LBT failure times information corresponding to each beam.

In the communication method provided in the embodiment of the present disclosure, fig. 3 is a flowchart of another communication method shown in accordance with an exemplary embodiment. In response to receiving the configuration information sent by the network device, the configuration information indicates the terminal to perform LBT before sending data to the network device, and the method may further include the steps of:

in step S21, based on the configuration information, the beam identity is determined in a random access procedure other than the last time in the LBT failure recovery procedure.

In some embodiments, the terminal may receive configuration information sent by the network device. The configuration information is used for indicating the terminal to perform LBT before sending data to the network device. The terminal may determine the beam identity in a non-last random access procedure in the LBT failure recovery procedure based on the configuration information. I.e. the beam identity of the downlink sub-beam.

The method and the device can determine the beam identification in the random access process of the non-last time in the LBT failure recovery flow under the condition that the network equipment configures the terminal to perform LBT before transmitting data. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

In the communication method provided by the embodiment of the disclosure, in response to receiving the configuration information sent by the network device, the configuration information indicates the terminal to perform LBT before sending data to the network device. The random access information comprises first LBT failure times information and/or third LBT failure times information; alternatively, the random access information includes second LBT failure number information and/or third LBT failure number information.

In some embodiments, the LBT is performed before the terminal sends the data to the network device in response to the terminal receiving the configuration information sent by the network device. The random access information may include first LBT failure number information and/or third LBT failure number information.

In some embodiments, the LBT is performed before the terminal sends the data to the network device in response to the terminal receiving the configuration information sent by the network device. The random access information may include second LBT failure number information and/or third LBT failure number information.

The random access information includes LBT failure times information only when the network device configures the terminal to perform LBT before transmitting data. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

For random access information of a plurality of random access procedures managed by the LBT failure recovery procedure, no good recording manner exists in the related art. Therefore, based on the same or similar inventive concept, the present disclosure also provides a communication method, by transmitting random access information describing at least one random access procedure corresponding to a terminal in an LBT failure recovery procedure to a network device, so that the network device can acquire the random access information of the at least one random access procedure corresponding to the LBT failure recovery procedure.

Fig. 4 is a flowchart of yet another communication method according to an exemplary embodiment, and as shown in fig. 4, the method is applied to a terminal, and may include the steps of:

in step S31, random access information is transmitted to the network device in response to the terminal accessing the serving cell.

In some embodiments, the terminal may send random access information to the network device in response to the terminal accessing the serving cell. The random access information is used for describing at least one random access process corresponding to the terminal in the LBT failure recovery flow.

It can be appreciated that the random access information corresponds to at least one random access procedure corresponding to the same LBT failure recovery procedure. If the terminal starts the LBT failure recovery procedure based on the random access procedure trigger, the random access procedure triggering the LBT failure recovery procedure should be considered as related to the LBT failure recovery procedure.

The method and the device enable the network equipment to acquire the random access information of the at least one random access process corresponding to the LBT failure recovery process by sending the random access information describing the at least one random access process corresponding to the terminal in the LBT failure recovery process to the network equipment.

In the communication method provided by the embodiment of the present disclosure, each random access procedure in the random access information may include at least one of the following: information corresponding to each random access attempt; a beam identifier corresponding to the random access attempt; downlink reference signal received power DL RSRP of the synchronization signal block SSB; the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A; sub-carrier spacing SCS information of partial bandwidth BWP.

In some embodiments, the random access information may include DL RSRP of the SSB.

In some embodiments, the random access information may include frequency domain resource configuration information or subcarrier spacing information used by the random access procedure to transmit Msg 1 or Msg a.

In some embodiments, the random access information may include SCS information of BWP.

In the communication method provided by the embodiment of the present disclosure, each random access procedure in the random access information may not include at least one of the following: information corresponding to each random access attempt; a beam identifier corresponding to the random access attempt; downlink reference signal received power DL RSRP of the synchronization signal block SSB; the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A; sub-carrier spacing SCS information of partial bandwidth BWP.

The present disclosure provides that the random access information may not include a variety of different information so that the network device may be more aware of the process of the terminal performing random access.

In some embodiments, the information included in each corresponding random access procedure in the random access information, for example, information corresponding to each random access attempt; random access attempt corresponding LBT failure information; DL RSRP of SSB; the random access process sends frequency domain resource configuration information or subcarrier spacing information used by Msg 1 or Msg A; one or more items of SCS information of BWP. May be carried by RA-information common.

In some embodiments, each random access attempt in each random access procedure in the random access information, the beam information corresponding to the random access attempt, and/or DL RSRP of the SSB may be carried over a perRAInfoList bearer

In the communication method provided by the embodiment of the disclosure, in response to the terminal accessing the serving cell in the frequency range FR 2-2, the beam identifier corresponding to the last random access process in the LBT failure recovery flow and the LBT failure times information corresponding to each beam are carried by RA-information common or perRAInfoList.

In the communication method provided by the embodiment of the disclosure, in response to the terminal accessing the serving cell by adopting the FR 2-2, the beam identifier corresponding to the non-last random access process in the LBT failure recovery flow and the LBT failure times information corresponding to each beam are carried by the newly added information field, the RA-information common or the perRAInfoList.

In the communication method provided in the embodiment of the present disclosure, fig. 5 is a flowchart of yet another communication method shown in accordance with an exemplary embodiment. In response to the terminal accessing the serving cell using FR 2-2 and receiving configuration information sent by the network device, the configuration information indicates the terminal to perform LBT before sending data to the network device, the method may further include the steps of:

in step S41, based on the configuration information, the beam identity is determined in a non-last random access procedure in the LBT failure recovery procedure.

The method and the device can determine the beam identification in the random access process of the non-last time in the LBT failure recovery flow under the condition that the network equipment configures the terminal to perform LBT before transmitting data. So that the network device can obtain the random access information of at least one random access process corresponding to the LBT failure recovery procedure.

In the communication method provided by the embodiment of the disclosure, the beam identifier includes an SSB identifier and/or a CSI-RS identifier of a channel state information reference signal.

The present disclosure provides a plurality of different beam identification information, so that a network device can obtain random access information of at least one random access procedure corresponding to an LBT failure recovery procedure.

In the communication method provided by the embodiment of the disclosure, in response to the terminal accessing the serving cell by using FR 2-2, the random access information includes first LBT failure times information, where the first LBT failure times information indicates the LBT failure times of performing random access attempt on the downlink beam.

In some embodiments, the random access information transmitted by the terminal may include first LBT failure number information in response to the terminal accessing the serving cell in the FR 2-2 band. The first LBT failure number information indicates the number of LBT failures of the terminal for random access attempts using the random access resources associated with the downlink beam. Wherein, the first LBT failure times information may correspond to a random access procedure.

The present disclosure sends first LBT failure number information to a network device when accessing a serving cell on an FR 2-2 band. So that the network device can obtain the random access information of at least one random access process corresponding to the LBT failure recovery procedure.

In the communication method provided by the embodiment of the disclosure, in response to the terminal accessing the serving cell by adopting FR 1 or FR 2-1, the random access information comprises second LBT failure frequency information; the second LBT failure times information is LBT failure times information corresponding to each random access process and indicates the total LBT failure times in the random access process; or, the second LBT failure number information is the LBT failure number information corresponding to each LBT failure recovery procedure, and indicates the total number of LBT failures in all random access procedures associated with the LBT failure recovery procedure.

In some embodiments, the random access information may include second LBT failure number information in response to the terminal accessing the serving cell in the FR 1 band or the FR 2-1 band. The second LBT failure times information is LBT failure times information corresponding to each random access process and indicates the total LBT failure times in the random access process; or, the second LBT failure number information is the LBT failure number information corresponding to each LBT failure recovery procedure, and indicates the total number of LBT failures in all random access procedures associated with the LBT failure recovery procedure.

The present disclosure sends a second LBT failure number to a network device when accessing a serving cell on an FR 1 band or an FR 2-1 band. So that the network device can obtain the random access information of at least one random access process corresponding to the LBT failure recovery procedure.

Based on the same conception, the present disclosure also provides a communication method applied to the network device.

Fig. 6 is a flowchart of another communication method according to an exemplary embodiment, as shown in fig. 6, the method being applied to a network device, and may include the steps of:

in step S51, random access information transmitted by the terminal is received.

In some embodiments, the network device may receive random access information transmitted by the terminal. The terminal accesses the service cell by adopting a specific frequency band, and the random access information comprises LBT failure information for describing the terminal in the random access process.

The present disclosure is directed to a method and apparatus for receiving random access information including LBT failure conditions transmitted by a terminal by a network device when a specific frequency band is accessed to a serving cell. The terminal does not need to report the LBT failure condition corresponding to each wave beam under any condition, so that the communication cost of reporting the LBT failure condition by the terminal is reduced, and further, the communication resource is saved.

When the present disclosure accesses a serving cell on the FR 2-2 frequency band, the network device receives LBT failure information corresponding to each downlink beam sent by the terminal. The network equipment does not need to receive the LBT failure condition corresponding to each wave beam reported by the terminal under any condition, thereby reducing the communication cost for reporting the LBT failure condition and further saving communication resources.

In some embodiments, the LBT failure information received by the network device may include first LBT failure number information. The first LBT failure number information indicates the number of LBT failures of the terminal for random access attempts using the random access resources associated with the downlink beam. Wherein, the first LBT failure times information may correspond to a random access procedure.

When the present disclosure accesses a serving cell on the FR 2-2 band, the network device receives the first LBT failure frequency information sent by the terminal. The network equipment does not need to receive the LBT failure condition corresponding to each wave beam reported by the terminal under any condition, thereby reducing the communication cost for reporting the LBT failure condition and further saving communication resources.

In some embodiments, the LBT failure information received by the network device may include a beam identification. The beam identity may be an SSB identity and/or a CSI-RS identity. Wherein the identification may be an id or index. For example, SSB is identified as SSB index; the CSI-RS is identified as CSI-RS index. It will be appreciated that this beam identifies the indicated beam, i.e. the downlink beam on which the random access attempt was made as mentioned above.

When accessing a serving cell on the FR 2-2 frequency band, the network equipment receives a beam identifier sent by a terminal, wherein the beam identifier indicates a downlink beam for carrying out random access attempt. The network equipment does not need to receive the LBT failure condition corresponding to each wave beam reported by the terminal under any condition, thereby reducing the communication cost for reporting the LBT failure condition and further saving communication resources.

The present disclosure receives, by a network device, the number of second LBT failures sent by a terminal when accessing a serving cell on an FR 1 band or an FR 2-1 band. The network equipment does not need to receive the LBT failure condition corresponding to each wave beam reported by the terminal under any condition, thereby reducing the communication cost for reporting the LBT failure condition and further saving communication resources.

In some embodiments, the LBT failure information in the random access information may be a beam for performing random access attempt in at least one random access procedure corresponding to the same LBT failure recovery procedure. For example, the terminal accesses the serving cell on the FR 2-2 band or the terminal accesses the serving cell on the FR 1 band or the FR 2-1 band.

The present disclosure may be directed to beams belonging to the same LBT failure recovery procedure, where the network device receives a corresponding LBT failure condition sent by the terminal. The network equipment does not need to receive the LBT failure condition corresponding to each wave beam reported by the terminal under any condition, thereby reducing the communication cost for reporting the LBT failure condition and further saving communication resources.

In some embodiments, the information included in each corresponding random access procedure in the random access information, for example, information corresponding to each random access attempt; random access attempt corresponding LBT failure information; DL RSRP of SSB; the random access process sends frequency domain resource configuration information or subcarrier spacing information used by Msg 1 or Msg A; one or more items of SCS information of BWP. May be carried over the newly added information domain.

The random access information can be carried by RA-information communication or not, so that the network equipment can receive random access information of various different information, and the network equipment can know the random access process of the terminal.

In some embodiments, each random access attempt in each random access procedure in the random access information, beam information corresponding to the random access attempt, and/or DL RSRP of the SSB may be carried by the newly added information field. It will be appreciated that this embodiment shows that instead of being carried over perRAInfoList, a new information domain is selected for carrying.

The partial information in the random access information can be carried by or not through the perRAInfoList, so that the network equipment can receive random access information of various different information, and the network equipment can know the random access process of the terminal.

The network of the disclosure sets the third LBT failure times information based on the same LBT failure recovery flow sent by the receiving terminal. The network equipment does not need to receive the LBT failure condition corresponding to each wave beam reported by the terminal under any condition, thereby reducing the communication cost for reporting the LBT failure condition and further saving communication resources.

In some embodiments, for the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam, the information may be carried by a new information field, RA-information common or perRAInfoList. It will be appreciated that this embodiment shows that instead of being carried over perRAInfoList, a new information domain is selected for carrying.

In the communication method provided by the embodiment of the disclosure, in response to sending configuration information to a terminal, the configuration information indicates the terminal to perform LBT before sending data to network equipment; the LBT failure information includes a beam identity determined by the terminal in a non-last random access procedure in the LBT failure recovery procedure.

In some embodiments, the network device may send configuration information to the terminal. The configuration information is used for indicating the terminal to perform LBT before sending data to the network device. The LBT failure information received by the network device may include a beam identifier determined by the terminal in a non-last random access procedure in the LBT failure recovery procedure, i.e. a beam identifier of a downlink sub-beam.

The method and the device can determine the beam identification in the random access process of the non-last time in the LBT failure recovery flow under the condition that the network equipment configures the terminal to perform LBT before transmitting data. The network equipment does not need to receive the LBT failure condition corresponding to each wave beam reported by the terminal under any condition, thereby reducing the communication cost for reporting the LBT failure condition and further saving communication resources.

In the communication method provided by the embodiment of the disclosure, in response to sending configuration information to the terminal, the configuration information indicates the terminal to perform LBT before sending data to the network device. The random access information comprises first LBT failure times information and/or third LBT failure times information; alternatively, the random access information includes second LBT failure number information and/or third LBT failure number information.

In some embodiments, the LBT is performed before the terminal sends the data to the network device in response to sending the configuration information to the terminal. The random access information may include first LBT failure number information and/or third LBT failure number information.

In some embodiments, the LBT is performed before the terminal sends the data to the network device in response to sending the configuration information to the terminal. The random access information may include second LBT failure number information and/or third LBT failure number information.

Fig. 7 is a flowchart of yet another communication method according to an exemplary embodiment, as shown in fig. 7, the method being applied to a network device, and may include the steps of:

in step S61, random access information transmitted by the terminal accessing the serving cell is received.

In some embodiments, the network device may receive random access information transmitted by the terminal in response to the terminal accessing the serving cell. The random access information is used for describing at least one random access process corresponding to the terminal in the LBT failure recovery flow.

The network equipment receives random access information which is sent by the terminal and used for describing at least one random access process corresponding to the LBT failure recovery flow, so that the network equipment can acquire the random access information of the at least one random access process corresponding to the LBT failure recovery flow.

In some embodiments, the random access information may include subcarrier spacing, SCS, information of BWP.

In the communication method provided by the embodiment of the disclosure, in response to the terminal accessing the service cell by adopting FR 2-2 and receiving configuration information sent by the network equipment, the configuration information indicates the terminal to perform LBT before sending data to the network equipment; the LBT failure information includes a beam identity determined by the terminal in a non-last random access procedure in the LBT failure recovery procedure.

When the present disclosure accesses a serving cell on the FR 2-2 band, the network device receives the first LBT failure frequency information sent by the terminal. So that the network device can obtain the random access information of at least one random access process corresponding to the LBT failure recovery procedure.

When the service cell is accessed to the FR 1 frequency band or the FR 2-1 frequency band, the network equipment receives the failure times of the terminal to send the second LBT. So that the network device can obtain the random access information of at least one random access process corresponding to the LBT failure recovery procedure.

It should be understood by those skilled in the art that the various implementations/embodiments of the present disclosure may be used in combination with the foregoing embodiments or may be used independently. Whether used alone or in combination with the previous embodiments, the principles of implementation are similar. In the practice of the present disclosure, some of the examples are described in terms of implementations that are used together. Of course, those skilled in the art will appreciate that such illustration is not limiting of the disclosed embodiments.

Based on the same conception, the embodiment of the disclosure also provides a communication device and equipment.

It may be understood that, in order to implement the above-mentioned functions, the communications apparatus and device provided in the embodiments of the present disclosure include corresponding hardware structures and/or software modules that perform the respective functions. The disclosed embodiments may be implemented in hardware or a combination of hardware and computer software, in combination with the various example elements and algorithm steps disclosed in the embodiments of the disclosure. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as beyond the scope of the embodiments of the present disclosure.

Fig. 8 is a schematic diagram of a communication device, according to an example embodiment. Referring to fig. 8, the apparatus 200 is configured at a terminal, and the apparatus 200 includes: a sending module 201, configured to send random access information to a network device in response to a terminal accessing a serving cell using a specific frequency band, where the random access information includes information describing LBT failure sent after listening in the random access procedure.

The present disclosure provides a variety of different information that may be included in the random access information so that the network device may be better aware of the process by which the terminal performs random access.

In one embodiment, in response to receiving the configuration information sent by the network device, the configuration information instructs the terminal to perform LBT before sending data to the network device, and the apparatus 200 further includes: a determining module 202, configured to determine, based on the configuration information, a beam identifier in a non-last random access procedure in the LBT failure recovery procedure.

Fig. 9 is a schematic diagram of another communication device, shown according to an example embodiment. Referring to fig. 9, the apparatus 300 is configured at a terminal, and the apparatus 300 includes: a sending module 301, configured to send random access information to the network device in response to the terminal accessing the serving cell, where the random access information is used to describe at least one random access procedure corresponding to the terminal in the LBT failure recovery procedure.

In one embodiment, in response to the terminal accessing the serving cell using FR 2-2 and receiving configuration information sent by the network device, the configuration information indicates the terminal to perform LBT before sending data to the network device, the apparatus 300 further includes: a determining module 302, configured to determine, based on the configuration information, a beam identifier in a non-last random access procedure in the LBT failure recovery procedure.

Fig. 10 is a schematic diagram of yet another communication device, shown according to an exemplary embodiment. Referring to fig. 10, the apparatus 400 is configured in a network device, and the apparatus 400 includes: the receiving module 401 is configured to receive random access information sent by a terminal, where the terminal accesses a serving cell using a specific frequency band, and the random access information includes information describing LBT failure sent after listening in a random access process.

Fig. 11 is a schematic diagram of yet another communication device, shown according to an exemplary embodiment. Referring to fig. 11, the apparatus 500 is configured in a network device, and the apparatus 500 includes: a receiving module 501, configured to receive random access information sent by a terminal accessing a serving cell, where the random access information is used to describe at least one random access procedure corresponding to the terminal in an LBT failure recovery procedure.

It should be noted that, the modules/units involved in the apparatus 400 and the apparatus 500 according to the embodiments of the present disclosure are merely illustrative, and not limited to the foregoing. For example, the apparatus 400 in the embodiments of the present disclosure may further include a transmitting module and/or a processing module, etc. The apparatus 500 may also include a transmission module and/or a processing module, etc. The modules included in the apparatus 200 and the apparatus 300 may interact with each other, or may interact with other network element devices.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Fig. 12 is a schematic diagram of a communication device, according to an example embodiment. For example, device 600 may be any terminal such as a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, and the like.

Referring to fig. 12, device 600 may include one or more of the following components: a processing component 602, a memory 604, a power component 606, a multimedia component 608, an audio component 610, an input/output (I/O) interface 612, a sensor component 614, and a communication component 616.

The processing component 602 generally controls overall operation of the device 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 602 can include one or more modules that facilitate interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.

The memory 604 is configured to store various types of data to support operations at the device 600. Examples of such data include instructions for any application or method operating on device 600, contact data, phonebook data, messages, pictures, videos, and the like. The memory 604 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power component 606 provides power to the various components of the device 600. Power component 606 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 600.

The multimedia component 608 includes a screen between the device 600 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 608 includes a front camera and/or a rear camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 600 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 610 is configured to output and/or input audio signals. For example, the audio component 610 includes a Microphone (MIC) configured to receive external audio signals when the device 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 604 or transmitted via the communication component 616. In some embodiments, audio component 610 further includes a speaker for outputting audio signals.

The I/O interface 612 provides an interface between the processing component 602 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 614 includes one or more sensors for providing status assessment of various aspects of the device 600. For example, the sensor assembly 614 may detect the on/off state of the device 600, the relative positioning of the components, such as the display and keypad of the device 600, the sensor assembly 614 may also detect a change in position of the device 600 or a component of the device 600, the presence or absence of user contact with the device 600, the orientation or acceleration/deceleration of the device 600, and a change in temperature of the device 600. The sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 614 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 616 is configured to facilitate communication between the device 600 and other devices, either wired or wireless. The device 600 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 616 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 604, including instructions executable by processor 620 of device 600 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

For example, the device 700 may be provided as a base station, or as a server. Referring to fig. 13, device 700 includes a processing component 722 that further includes one or more processors and memory resources represented by memory 732 for storing instructions, such as application programs, executable by processing component 722. The application programs stored in memory 732 may include one or more modules that each correspond to a set of instructions. Further, the processing component 722 is configured to execute instructions to perform the methods described above.

The device 700 may also include a power component 726 configured to perform power management of the device 700, a wired or wireless network interface 750 configured to connect the device 700 to a network, and an input output (I/O) interface 758. The device 700 may operate based on an operating system stored in memory 732, such as Windows Server, mac OS XTM, unixTM, linuxTM, freeBSDTM, or the like.

In one embodiment, such as shown in fig. 1, the present disclosure also provides a communication system comprising a terminal and a network device. The terminal is used for executing any one of the methods described in fig. 2 and 3; the network device is configured to perform any of the methods described in fig. 4 and 5.

In one embodiment, such as shown in fig. 1, the present disclosure also provides a communication system comprising a terminal and a network device. Wherein the terminal is configured to perform any one of the methods described in fig. 6; the network device is configured to perform any of the methods described in fig. 7.

In the present disclosure, the UE does not need to indicate LBT failure times by per beam, but only needs to indicate corresponding LBT failure times based on each random access procedure.

The present disclosure may decide whether to report the LBT failure times of the per beam depending on whether directional LBT is employed.

The present disclosure may record random access information of a plurality of random access procedures associated with the LBT failure recovery procedure.

It is further understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the meaning of the terms "responsive to", "if", etc., referred to in this disclosure, depends on the context and actual usage scenario, as the term "responsive to" as used herein may be interpreted as "at … …" or "at … …" or "if".

It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.

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 application is intended to cover any adaptations, 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 to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A communication method, wherein the method is applied to a terminal, and comprises:

and responding to the terminal to access the service cell by adopting the specific frequency band, and sending random access information to the network equipment, wherein the random access information comprises LBT failure information which is used for describing that the terminal listens first and then sends in the random access process.

2. The method of claim 1, wherein the terminal uses the random access resources associated with each downlink beam to perform random access attempts in response to the specific frequency band being a frequency range FR 2-2, and the LBT failure information is LBT failure information corresponding to each downlink beam.

3. The method of claim 2, wherein the LBT failure information comprises first LBT failure number information indicating a number of LBT failures for random access attempts using the downlink beam-associated random access resources.

4. A method according to claim 2 or 3, characterized in that the LBT failure information comprises a beam identity, which is a synchronization signal block SSB identity and/or a channel state information reference signal CSI-RS identity.

5. The method of claim 1, wherein the LBT failure information includes second LBT failure number information corresponding to a downlink beam in response to the specific frequency band being FR 1/FR 2-1, the second LBT failure number information corresponding to the downlink beam indicating a total number of LBT failures in a random access procedure.

6. The method according to any one of claims 2-5, wherein the downlink beam includes a downlink sub-beam, and the downlink sub-beam is a beam for performing a random access attempt in at least one random access procedure corresponding to the same LBT failure recovery procedure.

7. The method of claim 6, wherein each random access procedure in the random access information comprises at least one of:

Information corresponding to each random access attempt;

a beam identifier corresponding to the random access attempt;

downlink reference signal received power DL RSRP of SSB;

the random access process sends frequency domain resource allocation information or subcarrier spacing information used by the message 1 or the message A;

sub-carrier spacing SCS information of partial bandwidth BWP.

8. The method of claim 6, wherein each random access procedure in the random access information does not include at least one of:

information corresponding to each random access attempt;

a beam identifier corresponding to the random access attempt;

downlink reference signal received power DL RSRP of SSB;

sub-carrier spacing SCS information of partial bandwidth BWP.

9. The method according to claim 7 or 8, characterized in that each random access procedure in the random access information is carried by random access public information RA-information common or a newly added information field.

10. The method according to claim 7 or 8, wherein each random access attempt in each random access procedure in the random access information, the beam information corresponding to the random access attempt and/or DL RSRP of the SSB is carried by a random access information list perRAInfoList or a newly added information field.

11. The method according to any of claims 6-10, wherein the random access information comprises a third LBT failure number information indicating a number of LBT failures for random access attempts at the downlink sub-beam associated random access resource.

12. The method according to any one of claims 6-11, wherein the beam identifier corresponding to the last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam are carried by RA-information common or perRAInfoList.

13. The method according to any one of claims 6-12, wherein the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam are carried by a newly added information field, RA-information common or perRAInfoList.

14. The method according to any of claims 6-13, wherein in response to receiving configuration information sent by a network device, the configuration information indicates that the terminal performs LBT before sending data to the network device, the method further comprising:

And determining the beam identification in a random access process which is not the last time in the LBT failure recovery flow based on the configuration information.

15. The method according to any of claims 1-14, characterized in that in response to receiving configuration information sent by a network device, the configuration information instructs the terminal to perform LBT before sending data to the network device;

the random access information comprises first LBT failure times information and/or third LBT failure times information; or,

the random access information includes second LBT failure times information and/or third LBT failure times information.

16. A communication method, wherein the method is applied to a terminal, and comprises:

and responding to the terminal accessing the service cell, and sending random access information to network equipment, wherein the random access information is used for describing at least one random access process corresponding to the terminal in a Listen Before Talk (LBT) failure recovery flow.

17. The method of claim 16, wherein each random access procedure in the random access information comprises at least one of:

information corresponding to each random access attempt;

a beam identifier corresponding to the random access attempt;

Downlink reference signal received power DL RSRP of the synchronization signal block SSB;

sub-carrier spacing SCS information of partial bandwidth BWP.

18. The method of claim 16, wherein each random access procedure in the random access information does not include at least one of:

information corresponding to each random access attempt;

a beam identifier corresponding to the random access attempt;

sub-carrier spacing SCS information of partial bandwidth BWP.

19. The method according to claim 17 or 18, characterized in that each random access procedure in the random access information is carried by random access public information RA-information common or a newly added information field.

20. The method according to claim 17 or 18, wherein each random access attempt in each random access procedure in the random access information, the beam information corresponding to the random access attempt and/or the DL RSRP of the SSB is carried by a random access information list perRAInfoList or a newly added information field.

21. The method according to any one of claims 17-20, wherein in response to the terminal accessing a serving cell using a frequency range FR 2-2, the beam identifier corresponding to the last random access procedure in the LBT failure recovery procedure and LBT failure number information corresponding to each beam are carried by RA-information communication common or perRAInfoList.

22. The method according to any one of claims 17-21, wherein in response to the terminal adopting FR 2-2 to access a serving cell, the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and LBT failure number information corresponding to each beam are carried by a newly added information field, RA-information common or perrainfoslist.

23. The method according to any of claims 17-22, wherein in response to the terminal employing an FR 2-2 access serving cell and receiving configuration information sent by a network device, the configuration information indicates that the terminal performs LBT before sending data to the network device, the method further comprises:

24. The method according to any of claims 17-23, wherein the beam identity comprises an SSB identity and/or a channel state information reference signal, CSI-RS, identity.

25. The method according to any of claims 16-24, characterized in that in response to the terminal employing an FR 2-2 access serving cell, the random access information comprises first LBT failure number information indicating the number of LBT failures for random access attempts on the downlink beam.

26. The method according to any of claims 16-25, characterized in that the random access information comprises second LBT failure number information in response to the terminal accessing a serving cell with FR 1 or FR 2-1;

the second LBT failure times information is LBT failure times information corresponding to each random access process and indicates the total number of LBT failures in the random access process; or alternatively, the first and second heat exchangers may be,

the second LBT failure number information is LBT failure number information corresponding to each LBT failure recovery procedure, and indicates the total number of LBT failures in all random access procedures associated with the LBT failure recovery procedure.

27. A method of communication, the method being applied to a network device, comprising:

And receiving random access information sent by a terminal, wherein the terminal adopts a specific frequency band to access a service cell, and the random access information comprises information for describing LBT failure information sent after listening in the random access process of the terminal.

28. The method of claim 27, wherein the terminal uses the random access resources associated with each downlink beam to perform random access attempts in response to the specific frequency band being a frequency range FR2-2, and the LBT failure information is LBT failure information corresponding to each downlink beam.

29. The method of claim 28, wherein the LBT failure information comprises first LBT failure number information indicating a number of LBT failures for random access attempts using the downlink beam-associated random access resources.

30. The method according to claim 28 or 29, wherein the LBT failure information comprises a beam identity, which is a synchronization signal block SSB identity and/or a channel state information reference signal CSI-RS identity.

31. The method of claim 27 wherein the LBT failure information includes second LBT failure number information corresponding to a downlink beam in response to the specific frequency band being FR 1/FR 2-1, the second LBT failure number information corresponding to a downlink beam indicating a total number of LBT failures in a random access procedure.

32. The method according to any one of claims 28-31, wherein the downlink beam includes a downlink sub-beam, and the downlink sub-beam is a beam for performing a random access attempt in at least one random access procedure corresponding to the same LBT failure recovery procedure.

33. The method of claim 32, wherein each random access procedure in the random access information comprises at least one of:

information corresponding to each random access attempt;

a beam identifier corresponding to the random access attempt;

downlink reference signal received power DL RSRP of SSB;

sub-carrier spacing SCS information of partial bandwidth BWP.

34. The method of claim 32, wherein each random access procedure in the random access information does not include at least one of:

information corresponding to each random access attempt;

a beam identifier corresponding to the random access attempt;

downlink reference signal received power DL RSRP of SSB;

Sub-carrier spacing SCS information of partial bandwidth BWP.

35. The method according to claim 33 or 34, characterized in that each random access procedure in the random access information is carried by random access public information RA-information common or a newly added information field.

36. The method according to claim 33 or 34, wherein each random access attempt in each random access procedure in the random access information, the beam information corresponding to the random access attempt and/or the DL RSRP of the SSB is carried by a random access information list perRAInfoList or a newly added information field.

37. The method according to any of claims 32-36, wherein the random access information comprises a third LBT failure number information indicating a number of LBT failures for random access attempts at the downlink sub-beam associated random access resource.

38. The method according to any one of claims 32-37, wherein the beam identifier corresponding to the last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam are carried by RA-information common or perRAInfoList.

39. The method according to any one of claims 32-38, wherein the beam identification corresponding to the non-last random access procedure in the LBT failure recovery procedure and the LBT failure number information corresponding to each beam are carried by a newly added information field, RA-information common or perRAInfoList.

40. The method according to any of claims 32-39, characterized in that in response to transmitting configuration information to the terminal, the configuration information instructs the terminal to perform LBT before transmitting data to the network device;

the LBT failure information comprises beam identifications determined by the terminal in a random access process which is not the last time in the LBT failure recovery flow.

41. The method according to any of claims 27-40, characterized in that in response to transmitting configuration information to the terminal, the configuration information instructs the terminal to perform LBT before transmitting data to the network device;

42. A method of communication, the method being applied to a network device, comprising:

and receiving random access information sent by a terminal accessing a service cell, wherein the random access information is used for describing at least one random access process corresponding to the terminal in a listen-before-talk (LBT) failure recovery process.

43. The method of claim 42, wherein each random access procedure in the random access information comprises at least one of:

information corresponding to each random access attempt;

a beam identifier corresponding to the random access attempt;

sub-carrier spacing SCS information of partial bandwidth BWP.

44. The method of claim 42, wherein each random access procedure in the random access information does not include at least one of:

information corresponding to each random access attempt;

a beam identifier corresponding to the random access attempt;

Sub-carrier spacing SCS information of partial bandwidth BWP.

45. The method of claim 43 or 44, wherein each random access procedure in the random access information is carried by random access public information RA-information common or a newly added information field.

46. The method according to claim 43 or 44, wherein each random access attempt in each random access procedure in the random access information, the beam information corresponding to the random access attempt and/or DL RSRP of the SSB is carried by a random access information list perRAInfoList or a newly added information field.

47. The method according to any one of claims 43-46, wherein in response to the terminal accessing a serving cell using a frequency range FR 2-2, the beam identifier corresponding to the last random access procedure in the LBT failure recovery procedure and LBT failure times information corresponding to each beam are carried by RA-information common or perRAInfoList.

48. The method according to any one of claims 43-47, wherein in response to the terminal using FR 2-2 to access a serving cell, the beam identifier corresponding to the non-last random access procedure in the LBT failure recovery procedure and LBT failure number information corresponding to each beam are carried by a newly added information field, RA-information common, or perrainfoslist.

49. The method according to any of claims 43-48, wherein in response to the terminal employing FR 2-2 access to a serving cell and receiving configuration information sent by a network device, the configuration information indicates that the terminal performs LBT before sending data to the network device;

50. The method according to any of claims 43-49, wherein the beam identity comprises an SSB identity and/or a channel state information reference signal, CSI-RS, identity.

51. The method according to any of claims 42-50, characterized in that in response to the terminal employing an FR 2-2 access serving cell, the random access information comprises first LBT failure number information indicating the number of LBT failures for random access attempts on the downlink beam.

52. The method according to any of claims 42-51, characterized in that said random access information comprises second LBT failure number information in response to said terminal accessing a serving cell with FR 1 or FR 2-1;

53. A communication device, the device being configured in a terminal, the device comprising:

and the sending module is used for responding to the terminal to access the service cell by adopting the specific frequency band and sending random access information to the network equipment, wherein the random access information comprises information for describing the Listen Before Talk (LBT) failure of the terminal in the random access process.

54. A communication device, the device being configured in a terminal, the device comprising:

and the sending module is used for responding to the terminal accessing the service cell and sending random access information to the network equipment, wherein the random access information is used for describing at least one random access process corresponding to the terminal in the LBT failure recovery flow.

55. A communication apparatus, the apparatus being configured to a network device, the apparatus comprising:

The terminal is connected with the service cell by adopting a specific frequency band, and the random access information comprises information for describing listen before transmit LBT failure of the terminal in the random access process.

56. A communication apparatus, the apparatus being configured to a network device, the apparatus comprising:

and the receiving module is used for receiving random access information sent by the terminal access service cell, wherein the random access information is used for describing at least one random access process corresponding to the terminal in the LBT failure recovery flow.

57. A communication device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: performing the method of any one of claims 1 to 52.

58. A non-transitory computer readable storage medium, which when executed by a processor of a terminal, causes the terminal to perform the method of any one of claims 1 to 26.

59. A non-transitory computer readable storage medium, which when executed by a processor of a network device, causes the network device to perform the method of any of claims 27 to 52.