WO2021159949A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2021159949A1
WO2021159949A1 PCT/CN2021/073662 CN2021073662W WO2021159949A1 WO 2021159949 A1 WO2021159949 A1 WO 2021159949A1 CN 2021073662 W CN2021073662 W CN 2021073662W WO 2021159949 A1 WO2021159949 A1 WO 2021159949A1
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WO
WIPO (PCT)
Prior art keywords
cell
random access
side device
terminal
bwp
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Ceased
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PCT/CN2021/073662
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English (en)
French (fr)
Inventor
赵力
酉春华
娄崇
黄曲芳
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to MX2022010007A priority Critical patent/MX2022010007A/es
Priority to AU2021220811A priority patent/AU2021220811B2/en
Priority to EP21752994.0A priority patent/EP4093088B1/en
Publication of WO2021159949A1 publication Critical patent/WO2021159949A1/zh
Priority to US17/886,792 priority patent/US20220386379A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0836—Random access procedures, e.g. with 4-step access with 2-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • This application relates to the field of wireless communication technology, and in particular to a communication method and device.
  • LTE Long Term Evolution
  • NR new radio
  • LAA licensed spectrum assisted access
  • the terminal-side device When the terminal-side device fails in the active bandwidth part (BWP) of the serving cell (bandwidth part, BWP), the continuous uplink (listen before talk, LBT) fails, the terminal-side device can trigger the LBT failure media access control ( The medium access control (MAC) control element (CE) is reported to the network side device, and the LBT failure MAC CE is used to indicate whether a continuous uplink LBT failure occurs in the serving cell.
  • BWP active bandwidth part
  • BWP active bandwidth part
  • LBT listen before talk
  • the purpose of the embodiments of the present application is to provide a communication method and device to solve the problem of how the terminal-side device sends the LBT failure MAC CE.
  • the present application provides a communication method, including: a terminal-side device determines that a continuous uplink occurs in the first bandwidth part BWP of a first cell, and the terminal-side device fails to listen and then speak LBT;
  • the uplink resource sends first information to the network side device; the first information is used to indicate that the terminal side device has a continuous uplink LBT failure in the first cell; the second cell is a continuous uplink LBT failure that does not occur Community.
  • the terminal device when the terminal device has a continuous uplink in the first cell, it can send the first information through the second cell when the device fails to listen first and then speak LBT, so that the network device can quickly determine the first cell based on the first information. LBT failure occurs, so that LBT failure can be recovered as soon as possible.
  • the method further includes: the terminal-side device starts a first timer, and the timing duration of the first timer is a first duration; when the first timer expires, If the terminal-side device does not receive the second information from the network-side device in response to the first information, it switches to the second BWP of the first cell; the second BWP includes random access The resource for the access process; the second information is the downlink control information DCI used to schedule the terminal-side device to perform BWP handover; the terminal-side device uses the resource for performing the random access process in the second BWP Perform random access procedures.
  • that the terminal-side device sends the first information through the uplink resource in the second cell includes: when the terminal-side device determines that the number of times the first information is sent is less than N, The terminal-side device sends the first information through the uplink resource in the second cell, where N is an integer greater than 1.
  • the method further includes: when the terminal-side device determines that the number of times the first information is sent is not less than N, the terminal-side device switches to the second BWP of the first cell , N is an integer greater than 1; the second BWP includes a resource for performing a random access process; the terminal-side device uses the resource for performing a random access process in the second BWP to perform a random access process .
  • the method further includes: the random access process is a two-step random access process, and the terminal-side device uses the preamble according to the preamble in the two-step random access process. And the physical uplink shared channel PUSCH resource determined by the physical random access channel PRACH timing corresponding to the preamble sends the first information; or, the random access process is a four-step random access process, and the terminal side device The first information is sent through the uplink resource allocated by the RAR message in response to the random access in the four-step random access process.
  • the sending of the first information by the terminal-side device through the uplink resource in the second cell includes: the terminal-side device is handed over to the second BWP of the first cell;
  • the second BWP includes resources for performing a random access process;
  • the terminal-side device uses the resources of the random access process to initiate a two-step random access process in the second BWP, and when the device in the second cell
  • the start time of the uplink resource in the time domain is before the start time of the physical uplink shared channel PUSCH resource determined according to the preamble and the physical random access channel PRACH timing corresponding to the preamble in the two-step random access process
  • the terminal-side device sends the first information through the uplink resources in the second cell; or, the terminal-side device uses the resources of the random access procedure to initiate four steps in the second BWP
  • the random access process when the start time of the uplink resource in the second cell in the time domain is before the start time of the uplink resource allocated by the random access response RAR message in the four-step
  • the first cell is a primary cell or a primary and secondary cell; the second cell is a secondary cell.
  • the present application provides a communication method, including: a terminal-side device determines that a continuous uplink occurs in a BWP of a first bandwidth portion of a first cell; Primary and secondary cell, the second cell is a secondary cell; the second cell is a cell that does not have continuous uplink LBT failure and includes available uplink resources; the terminal side device switches to the second BWP of the first cell , And send first information in the second BWP of the first cell of the first cell and the second cell; the first information is used to indicate that the terminal side device is in the first cell Continuous upstream LBT failed.
  • the second BWP includes resources for performing a random access process; the terminal-side device is in the second BWP of the first cell among the first cell and the second cell
  • Sending the first information in the second BWP includes: the terminal-side device uses the resources of the random access process in the second BWP to perform a random access process; the random access process is a two-step random access process, so The terminal-side device sends the first information through the physical uplink shared channel PUSCH resource corresponding to the preamble in the two-step random access process; or, the random access process is a four-step random access process, and the The terminal-side device sends the first information through the uplink resource allocated by the RAR message in the random access response in the four-step random access process.
  • the present application provides a communication method, including: the terminal-side device determines that continuous uplink occurs in the fourth bandwidth part BWP of the third cell; If it is determined to switch to the fifth BWP of the third cell, the continuous uplink LBT failure status of the third cell is cancelled; the third information is used to indicate that the terminal-side device is not in the third cell A continuous upstream LBT failure occurred.
  • the terminal-side device fails the continuous uplink LBT in the fourth BWP of the third cell. If the terminal-side device switches to the fifth BWP of the third cell, the continuous uplink LBT failure state of the third cell can be cancelled to avoid When the network side fails to receive the LBT failure MAC CE indicating that the third cell has a continuous uplink LBT failure state, it misunderstands the state of the third cell.
  • the determining the fifth BWP for handover to the third cell includes: the terminal side device receives the downlink control information DCI from the network side device, and the DCI is used to indicate the The terminal-side device switches to the fifth BWP.
  • the present application also provides a communication device having any method provided in any one of the first aspect to the third aspect.
  • the communication device can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or units corresponding to the above-mentioned functions.
  • the communication device includes: a processor configured to support the communication device to perform corresponding functions of the terminal device in the method shown above.
  • the communication device may further include a memory, and the storage may be coupled with the processor, which stores program instructions and data necessary for the communication device.
  • the communication device further includes a communication interface, and the communication interface is used to support communication between the communication device and equipment such as a network side device.
  • the communication device includes corresponding functional units, which are respectively used to implement the steps in the above method.
  • the function can be realized by hardware, or the corresponding software can be executed by hardware.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the structure of the communication device includes a processing unit and a communication unit. These units can perform the corresponding functions in the foregoing method examples. For details, refer to the description in the method provided in the first aspect or the third aspect. Do not repeat it.
  • the present application provides a communication device.
  • the communication device includes a processor.
  • the processor executes a computer program or instruction in a memory, the method is as described in any one of the first to third aspects. Be executed.
  • the present application provides a communication device, the communication device includes a processor and a memory, the memory is used to store computer programs or instructions; the processor is used to execute the computer programs or instructions stored in the memory, So that the communication device executes the corresponding method as shown in any one of the first aspect to the third aspect.
  • the present application provides a communication device.
  • the communication device includes a processor, a memory, and a transceiver.
  • the transceiver is used to receive signals or send signals; and the memory is used to store computer programs or instructions;
  • the processor is configured to call the computer program or instruction from the memory to execute the method according to any one of the first aspect to the third aspect.
  • the present application provides a communication device that includes a processor and an interface circuit, the interface circuit is configured to receive code instructions and transmit them to the processor; the processor runs the code instructions To perform the corresponding method as shown in any one of the first aspect to the third aspect.
  • the present application provides a computer-readable storage medium for storing a computer program or instruction.
  • the computer reads and executes the computer program or instruction, the first aspect to the first aspect The method described in any one of the three aspects is implemented.
  • this application provides a computer program product including instructions.
  • the computer reads and executes the computer program product, the method described in any one of the first to third aspects is realized.
  • the present application provides a chip including a processor, the processor is coupled with a memory, and is configured to execute a computer program or instruction stored in the memory.
  • the processor executes the computer program or instruction At this time, the method described in any one of the first aspect to the third aspect is realized.
  • the present application provides a chip, which is connected to a memory, and is used to read and execute a software program stored in the memory to implement the method in any one of the first aspect to the third aspect. .
  • FIG. 1 is a schematic diagram of a dual connection architecture applicable to an embodiment of the present application
  • Figure 2 is a schematic flow chart of a four-step random access process
  • Figure 3 is a schematic flow diagram of a two-step random access process
  • FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 5 is a schematic diagram of a MAC CE structure provided by an embodiment of this application.
  • FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 7 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of a sequence provided by an embodiment of this application.
  • FIG. 9 is a schematic diagram of another MAC CE structure provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the technical solutions of the embodiments of this application can be applied to various communication systems, such as: the 5th Generation mobile communication technology (5G) system (such as New Radio (NR)), Long Term Evolution (Long Term) Evolution, LTE) system.
  • the LTE system may include an LTE Frequency Division Duplex (FDD) system and an LTE Time Division Duplex (TDD) system, etc., which are not limited here.
  • “multiple” refers to two or more than two. In view of this, “multiple” may also be understood as “at least two” in the embodiments of the present application. "At least one” can be understood as one or more, for example, one, two or more. For example, including at least one means including one, two or more, and it does not limit which ones are included. For example, if at least one of A, B, and C is included, then A, B, C, A and B, A and C, B and C, or A and B and C are included. In the same way, the understanding of "at least one" and other descriptions is similar.
  • the terminal-side device may be a device with wireless transceiver functions or a chip that can be installed in any device, and may also be called user equipment (UE), access terminal, user unit, user Station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user device.
  • UE user equipment
  • the terminal-side device in the embodiment of this application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, Wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ), the wireless terminal in the smart city, the wireless terminal in the smart home, and so on.
  • a mobile phone mobile phone
  • a tablet computer (Pad)
  • a computer with wireless transceiver function a virtual reality (VR) terminal, an augmented reality (AR) terminal
  • VR virtual reality
  • AR augmented reality
  • Wireless terminals in industrial control wireless terminals in self-driving
  • wireless terminals in remote medical wireless terminals in smart grid, transportation safety
  • the wireless terminal in the smart city the wireless terminal in the smart home, and so on.
  • the network side equipment may be an evolved base station (evolutional node B, eNB) in the LTE system, or a next-generation base station (next Generation node B, gNB) in the NR system.
  • eNB evolved base station
  • gNB next-generation base station
  • the embodiments of the present application can be applied to network-side equipment and terminal-side equipment that support carrier aggregation (CA) technology for a single base station, as well as support cross-base station carrier aggregation technology, such as dual-connectivity (DC) technology,
  • CA carrier aggregation
  • the network-side device and the terminal-side device may aggregate at least two component carriers (Component Carrier, CC) to support a larger transmission bandwidth, and one CC may correspond to an independent cell.
  • Component Carrier Component Carrier
  • the carrier aggregation technology of a single base station is often referred to as a carrier aggregation technology for short, and there is no special description below.
  • the carrier aggregation technology refers to a single base station carrier aggregation technology.
  • the data stream is separated and merged at the packet data convergence protocol (PDCP) layer, and the data stream is simultaneously transmitted to users through multiple base stations; while under carrier aggregation, the data stream is under media access control (medium access control, MAC) layer separation and merging.
  • PDCP packet data convergence protocol
  • MAC media access control
  • Dual connectivity is the aggregation between different sites, usually a macro base station and a micro base station, and the two are connected through an X2 interface; while carrier aggregation is the aggregation of different CCs in the same site.
  • a master cell group MCG
  • cell groups other than the MCG may be referred to as a secondary cell group (SCG), as shown in FIG. 1 for details.
  • the terminal side device 104 establishes a connection with the network side device 102 and the network side device 106 respectively.
  • the cell group in the network side device 102 may be an MCG
  • the cell group in the network side device 106 may be an SCG.
  • PCell primary cell
  • SCell secondary cells
  • the PCell in the MCG and the SCell in the MCG are united through the carrier aggregation technology.
  • PSCell primary secondary cell
  • the PSCell in the SCG and the SCell in the SCG are also united through CA technology.
  • special cell special cell (special cell, sPCell).
  • special cell refers to PCell in MCG or PSCell in SCG, otherwise, the term “special cell” "Refers to PCell.
  • the network-side device can configure a dedicated BWP for the terminal-side device. Up to 4 dedicated BWPs can be configured, and the network-side device can activate one of the BWPs. A terminal-side device is activated at the same time in a cell with only one BWP. The terminal-side device can transmit data in the activated BWP.
  • the network side device configures the BWP for the terminal side device on the cell of the unlicensed spectrum and activates a BWP in the configured BWP, and the terminal side device and the network side device can communicate through the unlicensed spectrum.
  • the terminal-side device executes the uplink LBT competition channel.
  • LBT can also be referred to as a channel access process. For the convenience of description, all are collectively referred to as LBT below.
  • LBT There are two types of LBT: Type 1, LBT based on a fixed duration. If the energy of the signal detected in the channel on the terminal side is lower than the preset threshold within a fixed duration, the channel is considered to be in an idle state and can be occupied Channel, otherwise it will compete for the channel again.
  • the terminal-side device can occupy the channel for data transmission only when it is determined that the channel is in an idle state.
  • Type two is energy detection based on the fallback mechanism.
  • the terminal-side device randomly selects a value A, where A is an integer greater than 0.
  • the terminal-side device detects at least A idle energy detections. After the slot, the channel is considered to be in an idle state, otherwise, the channel is considered to be in a busy state.
  • the start point of data transmission may refer to the start time of data transmission of the data to be transmitted by the terminal-side device.
  • the terminal side device if the terminal side device has not detected at least A free energy detection time slots before the start point of data transmission, it can be determined that the LBT has failed. For example, data is transmitted in a slot. This slot includes 14 symbols (respectively symbols 0 to 13). If the terminal-side device starts to transmit data from symbol 0, if at the beginning of symbol 0, the terminal The side device has not detected at least A free energy detection time slots, then it can be determined that an LBT failure has occurred.
  • the terminal-side device executes the uplink LBT in the activated BWP
  • the terminal-side device determines that each uplink LBT failure occurs in the BWP
  • it can perform the following operations: 1. Add 1 to the count value of the LBT failure counter (LBT_FAIL_COUNTER), where The initial value of the counter is 0; 2. Start or restart the timer (the timer may be lbtFailureDetectionTimer defined in the 3GPP standard), and the timing duration of the timer may be the duration configured by the network side device.
  • the terminal-side device Before the timer expires, if the count value of the LBT failure counter reaches the threshold, the terminal-side device can determine that the activated BWP has a continuous uplink LBT failure (consistent LBT failure). In the case that the timer expires, the terminal-side device can reset the count value of the counter to 0.
  • the terminal side device when the terminal side device determines that a continuous uplink LBT failure occurs in the serving cell, it can send the LBT failure MAC CE to the network side device. For this reason, this embodiment of the application provides a method for sending the LBT failure MAC CE, which will be described in detail below. describe.
  • the method provided in the embodiment of the present application involves a two-step random access process and a four-step random access process, which are described separately below.
  • the four-step random access process includes a contention-based four-step random access process and a non-competition-based four-step random access process.
  • the embodiment of this application relates to a contention-based four-step random access process.
  • the "four-step random access process" described in the embodiments of this application all refers to a four-step random access process based on contention.
  • the contention-based four-step random access process includes the following steps:
  • Step 210 The terminal side device sends a preamble to the network side device.
  • the preamble is also called message 1 (msg 1) of the random access procedure.
  • the network side device If the network side device successfully detects the preamble sent by the terminal side device, it sends a random access response (RAR) message corresponding to this preamble.
  • RAR random access response
  • Step 220 The network side device sends a RAR message to the terminal side device.
  • the RAR message may also be called message 2 (msg 2).
  • the RAR message contains the uplink timing advance, the uplink grant (UL grant) allocated for the transmission of message 3 (msg 3), and the temporary cell radio network temporary identifier (temporary C-RNTI) allocated by the network side device. )Wait.
  • the physical downlink control channel (PDCCH) for scheduling RAR messages is scrambled with random access radio network temporary identifier (RA-RNTI).
  • RA-RNTI random access radio network temporary identifier
  • the terminal-side device After the terminal-side device sends the preamble, it can monitor the corresponding PDCCH according to the RA-RNTI value corresponding to the preamble in the RAR response window. If the preamble corresponding to the preamble index carried in the RAR message obtained through the monitored PDCCH is consistent with the preamble sent by message 1, the terminal side device stops monitoring the RAR message.
  • the terminal-side device does not receive the RAR message within the RAR time window, or if there is no preamble corresponding to the preamble index in the received RAR message that matches the preamble sent by itself, it is considered that the random access process has failed this time.
  • Step 230 The terminal-side device sends a scheduled transmission-based message, that is, message 3, to the network-side device.
  • the terminal-side device sends Message 3 to the network-side device through the physical uplink shared channel (PUSCH) according to the uplink grant and uplink timing advance information in the message 2.
  • PUSCH physical uplink shared channel
  • Step 240 The terminal side device receives the contention resolution sent by the network side device, that is, message 4.
  • contention occurs. At most, only one terminal-side device among the terminal-side devices that compete for the same resource can successfully access. At this time, the network side device sends a contention resolution message to the terminal side device through the PDSCH.
  • the terminal-side device After sending message 3, the terminal-side device starts the contention resolution timer (mac-Contention Resolution Timer), and uses the temporary C-RNTI indicated in the RAR message or the C-RNTI pre-configured by the network-side device to monitor the PDCCH If, before the contention resolution timer expires, the terminal-side device receives a contention resolution message sent to itself from the network-side device, the random access process is considered to be successful, otherwise it is determined that the random access process has failed.
  • the contention resolution timer (mac-Contention Resolution Timer)
  • the terminal-side device uses the temporary C-RNTI indicated in the RAR message or the C-RNTI pre-configured by the network-side device to monitor the PDCCH If, before the contention resolution timer expires, the terminal-side device receives a contention resolution message sent to itself from the network-side device, the random access process is considered to be successful, otherwise it is determined that the random access process has failed.
  • the two-step random access process includes the following steps:
  • Step 310 The terminal side device sends a message A (message A, msg A) to the network side device.
  • the msg A includes random access signals and payload data.
  • the payload data is carried by the PUSCH resource
  • the PUSCH resource is a physical uplink shared channel ( physical uplink shared channel, PUSCH) resources.
  • the random access signal may include at least one of a preamble and a demodulation reference signal (demodulation reference signal, DMRS).
  • the random access signal is used for the network side device to receive payload data.
  • the random access signal may be used according to the random access
  • the signal determines the transmission boundary of the payload data (such as the start and end positions of the slot for transmitting the payload data), demodulates the payload data, and so on.
  • the payload data may be at least one of control plane data and user plane data.
  • the payload data may include but not limited to RRC connection request, terminal-side device identification, scheduling request, buffer status report (BSR), and Any one or more of business data.
  • the identity of the terminal-side device may be C-RNTI, a temporary mobile subscriber identity (serving-temporary mobile subscriber identity, s-TMSI), the identity of the terminal-side device in an inactive state (resumeIdentity), and so on.
  • the specific identifier carried depends on different random access trigger events, which is not limited in the embodiment of the present application. It should be noted that the identity of the terminal-side device can be all carried in the payload data, or can be partly carried in the payload data, and partly carried in the random access signal.
  • Step 320 The network side device sends a message B (message B, msg B) to the terminal side device.
  • msg B is used to carry response messages for random access signals and payload data in msg A.
  • the response message may include at least one of the following: temporary C-RNTI, timing advance command, uplink authorization, contention resolution identity, etc.
  • the contention resolution identification may be part or all of the content of the payload data.
  • the terminal-side device can send an LBT failure MAE CE.
  • the LBT failure MAC CE is used to indicate that a continuous uplink LBT occurs in the first cell. Uplink LBT failed.
  • the terminal-side device may send the LBT failure MAC CE in the BWP after the terminal-side device handover during the initiation of the random access procedure.
  • the terminal-side device may not need to perform BWP handover in order to recover the uplink LBT failure of the first cell.
  • the terminal-side device can send an LBT failure MAE CE, and the LBT failure MAC CE is used to indicate that a continuous uplink LBT occurs in the first cell fail.
  • the terminal-side device may send the LBT failure MAC CE through the CG/DG grant of the second cell (for example, the second cell may be an SCell), and the second cell is a cell where no continuous uplink LBT failure occurs.
  • the terminal-side device may not perform the BWP switching before receiving the DCI that the network-side device instructs to perform the BWP switching.
  • the terminal-side device can start a timer after sending the LBT failure MAC CE, and wait for the DCI from the network-side device before the timer expires without performing BWP switching.
  • the DCI instructs the terminal-side device to perform BWP switching.
  • the timer expires, if the terminal-side device does not receive a DC instructing the terminal-side device to perform BWP switching, it may perform BWP switching and initiate a random access process.
  • the LBT failure MAC CE can be carried in msg3; if the terminal-side device initiates a 2-step random access procedure, the LBT failure MAC CE can be carried in msg A.
  • the terminal-side device When the terminal-side device fails in a continuous uplink LBT in the first cell (for example, the first cell is SpCell), and the terminal-side device performs BWP handover, and initiates a random access procedure in the handover BWP, the random access
  • the terminal-side device may send the LBT failure MAC CE in the first cell.
  • the terminal-side device will not send the LBT failure MAC CE during the random access process, but since the BWP switch has been initiated, the terminal-side device can notify the network side of the switched BWP after the terminal-side device has completed the switch. equipment.
  • the terminal-side device fails in a continuous uplink LBT in the third cell (for example, the third cell is an SCell), before generating the LBT failure MAC CE used to indicate the occurrence of continuous uplink LBT failure, if the terminal-side device receives the instruction If the terminal-side device performs the DCI of the BWP handover, the continuous uplink LBT failure state of the third cell is cancelled.
  • both the first cell and the second cell can provide services for the terminal side device.
  • the first cell may be the primary cell
  • the second cell may be the secondary cell.
  • the first cell may be a primary cell
  • the second cell may be a secondary cell in the same primary cell group as the first cell.
  • the first cell may be a primary and secondary cell
  • the second cell may be a secondary cell in the same secondary cell group as the first cell.
  • Step 401 The terminal-side device determines that a continuous uplink LBT failure occurs in the first BWP of the first cell.
  • the first BWP is a BWP activated in the first cell by the network-side device as the terminal-side device.
  • the embodiment of this application is not limited to how the device on the terminal side specifically fails the continuous uplink LBT. For example, reference may be made to the previous description, which will not be repeated here.
  • Step 402 The terminal side device sends the first information to the network side device through the uplink resource in the second cell.
  • the first information is used to indicate that the terminal-side device has a continuous uplink LBT failure in the first cell.
  • the second cell is a cell where no continuous uplink LBT failure occurs. It should be noted that the second cell is a cell where no continuous uplink LBT failure has occurred. It can mean that when the terminal-side device sends the first information, the terminal-side device determines that there is no continuous uplink LBT failure in the second cell, or it can refer to the terminal When the side device determines the uplink resource used to send the first information, the terminal side device determines that no continuous uplink LBT failure occurs in the second cell.
  • the uplink resource in the second cell is the uplink resource used by the terminal-side device for new transmission.
  • the uplink resource in the second cell may include, but is not limited to, one or more of the following :
  • PDCCH physical downlink control channel
  • C-RNTI cell radio network temporary identity
  • the configuration authorized resources that can be used for uplink transmission does not require dynamic scheduling by the network-side equipment, and the terminal-side equipment can send uplink data on the configured authorized uplink resources.
  • These resources include, but are not limited to, unlicensed new radio (new radio- unlicensed, NR-U)
  • configure authorization method 1 (configured grant type 1)
  • configure authorization method 2 (configured grant type 2) uplink resources.
  • the network-side device can pre-configure the resources required for uplink transmission by the terminal-side device through semi-static resource allocation, that is, the configured authorized resource, which can also be called pre-configured uplink authorization (configured UpLink). grant), hereinafter referred to as configuration authorization resources.
  • the configured authorized resource may appear periodically, and the terminal side device does not need to obtain the uplink authorization before each uplink transmission is sent.
  • the network-side device may configure the configured authorized resources for uplink transmission through radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the RRC signaling may also include a period for configuring authorized resources, so that the terminal-side device can transmit data on the configured authorized resources.
  • the second configuration mode, configuration authorization mode 2 The network side device can instruct to configure part of the information of the authorized resource through RRC signaling, for example, the period of configuring the authorized resource.
  • the network side device can also indicate the configuration authorized resource through physical layer signaling, and the physical layer signaling is also used to activate the configuration authorized resource, so that the terminal side device can transmit data on the configured authorized resource.
  • first configuration mode is not limited to configuration authorization mode 1, and other naming is also possible, which is not limited in the embodiment of the present application.
  • second configuration method is not limited to configuration authorization method 2, and other naming is also possible.
  • the embodiments of the present application do not limit the communication systems to which the first configuration method and the second configuration method are applicable, and they may be an LTE communication system, a 5G communication system, or other communication systems.
  • the specific implementation manner of the first information is not limited.
  • the first information is a MAC CE, such as an LBT failure MAC CE.
  • FIG. 5 a schematic diagram of a MAC CE structure provided by an embodiment of this application.
  • the MAC CE shown in FIG. 5 includes multiple cell identification domains.
  • FIG. 5 includes 31 cell identification domains: C1 to C31.
  • the value of the bit corresponding to a cell identity field is the first value, it means that the terminal-side device has a continuous uplink LBT failure in the cell corresponding to the cell identity field; the value of the bit corresponding to a cell identity field is the second When the value is value, it means that the terminal-side device does not have continuous uplink LBT failure in the cell corresponding to the cell identity field.
  • the specific values of the first value and the second value are not limited. For example, the first value is 1 and the second value is 0.
  • the MAC CE shown in Fig. 5 may also include a main small area, which is represented by P in Fig. 5.
  • the main small area may also be expressed in other ways, which is not limited in the embodiment of the present application, and the main small area is used To indicate whether a continuous uplink LBT failure occurs in the primary cell of the terminal-side device.
  • the value of the bit corresponding to the primary small area is the first value, it means that the terminal-side device has failed continuous uplink LBT in the primary cell; when the bit corresponding to the primary small area is the second value, it means There is no continuous uplink LBT failure on the terminal side equipment in the primary cell.
  • the specific values of the first value and the second value are not limited. For example, the first value is 1 and the second value is 0.
  • the MAC CE shown in FIG. 5 may also include other domains, such as a reserved (R) domain, etc., and examples are not given here.
  • R reserved
  • the terminal-side device when the first information is LBT failure MAC CE, when the terminal-side device performs logical channel priority multiplexing according to the uplink resources in the second cell, the obtained multiplexing results indicate the uplink resources in the second cell
  • the terminal-side device may send the first information on the uplink resource in the second cell.
  • the terminal-side device may also perform BWP switching.
  • BWP switching means that the activated BWP is switched from the current BWP to another BWP. After the BWP switch is performed, the terminal-side device stops using the BWP before the switch, and starts to use the BWP after the switch, as described below.
  • Step 1 The terminal-side device determines that a continuous uplink LBT failure occurs in the first BWP of the first cell.
  • Step 2 The terminal-side device sends the first information through the uplink resource in the second cell, and can start the first timer.
  • the timing duration of the first timer is the first duration; the first duration may be configured by the network-side device, or independently determined by the terminal-side device, or the duration specified in the communication protocol, or it may be It is determined by other means, which is not limited in the embodiment of the present application.
  • the first timer when the first timer starts, it starts timing.
  • the length of time counted by the first timer is the first length of time, the counting of the first timer ends, and at this time, it can be considered that the first timer has timed out.
  • Step 3 After the first timer is started, the terminal-side device can perform BWP switching in any of the following situations.
  • Case 1 After the first timer is started, while the first timer is running, if the terminal-side device receives the second information from the network-side device, it can switch to the third BWP indicated by the second information, and Stop the first timer.
  • the second information is downlink control information (DCI) used to schedule the terminal-side device to perform BWP switching, and the second information is used to instruct the terminal-side device to switch to the third BWP.
  • DCI downlink control information
  • Case 2 When the first timer expires, it means that within the first time period from the start of the first timer to the expiration of the first timer, the terminal side device has not received a response to the first information from the network side device According to the second information, the terminal-side device can actively perform BWP handover, for example, can handover to the second BWP of the first cell.
  • the terminal-side device does not actively perform the BWP handover on the first cell, and only performs the BWP handover when the second information from the network-side device is received.
  • the second BWP and the third BWP may be the same BWP or different BWP, which is not limited by the embodiment of the present application.
  • Step 4 The terminal-side device completes the BWP handover and realizes the recovery of continuous uplink LBT failures.
  • the following describes the switching of the terminal-side device to the second BWP as an example.
  • the second BWP may include at least one of a resource for performing a random access process and a scheduling request (scheduling request, SR) resource.
  • the resources for performing the random access procedure may include at least one of resources for performing a two-step random access procedure and resources for performing a four-step random access procedure.
  • the resources for performing the two-step random access process include PRACH resources for sending a preamble, and PUSCH resources determined according to the preamble and the PRACH timing corresponding to the preamble.
  • the terminal-side device may implement a random access process or an SR process in the second BWP to achieve recovery from continuous uplink LBT failures.
  • the terminal-side device may use the resources included in the second BWP to perform the random access process in the second BWP to perform the random access process.
  • the random access process performed by the terminal-side device in the second BWP may be a two-step random access process or a four-step random access process.
  • the terminal-side device can perform the two-step random access process in the second BWP; when the second BWP only includes the resources of the four-step random access process , The terminal-side device can perform the four-step random access process in the second BWP; when the second BWP includes the resources of the two-step random access process and the resources of the four-step random access process, the terminal-side device receives power according to the reference signal (Reference Signal Received Power, RSRP) determines whether to initiate a two-step random access process or a four-step random access process.
  • RSRP Reference Signal Received Power
  • the terminal-side device determines that the reference signal received power is greater than the threshold, the terminal-side device initiates a two-step random access process; when the terminal-side device determines that the reference signal received power is less than or equal to the threshold, the terminal-side device initiates a four-step random access process.
  • the reference signal may be a downlink path loss reference signal.
  • the terminal-side device may also send the first information to the network-side device during the random access process.
  • Case 1 When the random access process performed by the terminal-side device in the second BWP is a two-step random access process, the terminal-side device can use the preamble according to the preamble and the preamble in the two-step random access process.
  • the first information is transmitted on the PUSCH resource determined by the PRACH timing corresponding to the code.
  • the PUSCH resource determined according to the preamble and the PRACH timing corresponding to the preamble can be used to send the payload data of message A in the two-step random access process, so the terminal-side device can pass through the two-step random access process
  • the terminal-side device For sending the first information in message A, refer to the two-step random access procedure shown in FIG. 3.
  • Case 2 When the random access process performed by the terminal-side device in the second BWP is a four-step random access process, the terminal-side device can use the random access response in the four-step random access process.
  • the first information is sent on the uplink resource allocated by the RAR) message.
  • the RAR message can also be called message 2.
  • the RAR message can include information such as the uplink timing advance and the uplink grant (UpLink grant) allocated for message 3 (msg 3).
  • the uplink grant in the RAR message is used to allocate uplink resources for message 3.
  • the terminal-side device can send the message 3 through the uplink resource allocated by the uplink authorization in the RAR message, so the terminal-side device can send the first information through the message 3 in the four-step random access process.
  • the second BWP switched by the terminal-side device may include scheduling request (SR) resources, and the terminal-side device may use the scheduling request resources included in the second BWP for scheduling in the second BWP.
  • SR scheduling request
  • the terminal-side device may send an SR to request an uplink resource, and send the first information through the uplink resource requested by the SR.
  • the terminal-side device when the terminal-side device sends the first information sent by the second cell through msg 3 in the four-step random process or msg A in the two-step random process or the uplink resource requested by the SR, one In a possible implementation manner, the terminal-side device saves the status of the serving cell included in the first information sent on the second cell, and regenerates the first information.
  • Step 1 The terminal-side device determines that a continuous uplink LBT failure occurs in the first BWP of the first cell.
  • Step 2 The terminal-side device may send the first information through the uplink resource in the second cell multiple times.
  • the terminal-side device may determine the number of times the first information is sent each time before sending the first information in the second cell. For example, the terminal-side device may maintain a counter, and each time the first information is sent in the second cell, the count value of the counter is increased by 1; each time the terminal-side device sends the first information in the second cell, First determine whether the value of the counter reaches N.
  • the terminal-side device determines that the number of times of sending the first information is less than N, the terminal-side device determines to send the first information through the uplink resource in the second cell.
  • the terminal-side device determines that the number of times the first information is sent is not less than N
  • the terminal-side device determines not to send the first information through the uplink resources in the second cell, and the terminal-side device may actively perform BWP Handover, such as handover to the second BWP of the first cell.
  • N is the maximum number of times that the terminal-side device sends the first information through the uplink resource in the second cell. It can be configured by the network-side device through RRC signaling, or independently determined by the terminal-side device, or it can be a communication protocol. It may also be determined in other ways, and the embodiment of the present application is not limited.
  • Step 3 The terminal-side device can perform BWP switching in any of the following situations.
  • step two and step three is not limited. If the terminal-side device receives the second information before step two, it can also perform BWP switching first.
  • Case 1 When the number of times the first information is sent is not less than N, the terminal-side device can actively switch to the second BWP of the first cell.
  • Case 2 When the number of times the first information is sent is less than N, if the terminal-side device receives the second information from the network-side device, it can switch to the third BWP indicated by the second information.
  • the second information is used to indicate the third BWP to which the terminal-side device is switched.
  • the terminal-side device may also reset the number of times the first information is sent to zero.
  • the terminal-side device may not actively switch the BWP when it does not receive the second information from the network-side device.
  • the terminal-side device may switch to the third BWP indicated by the second information according to the second information.
  • Step 4 The terminal-side device completes the BWP handover and realizes the recovery of continuous uplink LBT failures.
  • the second BWP may include at least one of a resource for performing a random access process and an SR resource.
  • the terminal-side device When the terminal-side device switches to the second BWP, it can realize the recovery of the continuous uplink LBT failure through the random access process or the SR process.
  • the terminal-side device may also send the first information to the network-side device in a random access process or a scheduling resource request process.
  • the terminal-side device may send the first step through the PUSCH resource determined according to the preamble in the two-step random access process and the PRACH timing corresponding to the preamble.
  • the terminal-side device may send the first step through the PUSCH resource determined according to the preamble in the two-step random access process and the PRACH timing corresponding to the preamble.
  • the terminal-side device can send the first information through the uplink resources allocated by the RAR message in the four-step random access process. For details, please refer to the previous description. This will not be repeated here.
  • the terminal-side device When the terminal-side device performs the SR process, the terminal-side device may send the first information through the uplink resource requested by the SR.
  • the terminal-side device may send the first information through the uplink resource requested by the SR.
  • Step 1 The terminal-side device determines that a continuous uplink LBT failure occurs in the first BWP of the first cell.
  • Step 2 The terminal-side device actively performs BWP handover in the first cell and switches to the second BWP of the first cell.
  • the second BWP may include at least one of a resource for performing a random access process and an SR resource.
  • Step 3 In the second BWP, the terminal-side device can implement continuous uplink LBT recovery through a two-step random access process or a four-step random access process or an SR process.
  • Step 4 The terminal-side device determines the start time of the uplink resource in the second cell, which is before the transmission time of msg A in the two-step random access process, or is indicated by the RAR message in the four-step random access process Before the start time of the uplink resource, or before the sending time of the uplink resource requested by the SR, the first information is sent on the uplink resource in the second cell.
  • the payload data of msg A in the two-step random access process is sent through the PUSCH resource determined according to the preamble in the two-step random access process and the PRACH timing corresponding to the preamble.
  • the terminal-side device uses the resources for the random access process in the second BWP to initiate a two-step random access process in the second BWP, when the uplink resource in the second cell starts at the time domain
  • the terminal-side device transmits via the uplink resource in the second cell The first information.
  • the terminal-side device uses the resources for the random access process in the second BWP to initiate a four-step random access process in the second BWP, when the uplink resources in the second cell are available
  • the terminal-side device sends the first information.
  • the terminal-side device uses the SR resources in the second BWP to initiate an SR process in the second BWP, when the uplink resource in the second cell starts at the time when the uplink resource in the second cell passes through the Before the start time of the uplink resource requested by the SR process, the terminal-side device sends the first information through the uplink resource in the second cell.
  • the starting time for the terminal-side device to determine the uplink resources in the second cell is after the sending time of msg A in the two-step random access process, or in the RAR during the four-step random access process.
  • the terminal-side device may not send the first information on the uplink resource in the second cell.
  • the terminal-side device may complete the recovery of continuous uplink LBT failure through a random access process or an SR process. If any one of the above three scenarios is met, after the terminal-side device sends the first information on the uplink resource in the second cell, if the terminal-side device is performing a two-step random access process or a four-step random access process in the second BWP of the first cell During the access process, the terminal-side device can also perform any of the following operations:
  • the terminal-side device when the terminal-side device implements recovery from failure of the uplink LBT through a random access process or an SR process, it may also send the first information through a random access process or an SR process.
  • the terminal-side device may send the PUSCH resource based on the preamble in the two-step random access process and the PRACH timing corresponding to the preamble.
  • the terminal-side device may send the PUSCH resource based on the preamble in the two-step random access process and the PRACH timing corresponding to the preamble.
  • the terminal-side device can send the first information through the uplink resources allocated by the RAR message in the four-step random access process. For details, please refer to the previous description. This will not be repeated here.
  • the terminal-side device When the terminal-side device initiates the SR process, the terminal-side device can send the first information through the uplink resource requested by the SR.
  • the terminal-side device can send the first information through the uplink resource requested by the SR.
  • the embodiment of the present application also provides a method.
  • the terminal-side device determines that a continuous uplink LBT failure occurs in the first BWP of the first cell, it can send the first information only through the first cell. For details, refer to the process shown in FIG. 6 .
  • both the first cell and the second cell can provide services for the terminal side device, and the first cell is a primary cell or a primary secondary cell, and the second cell is a secondary cell.
  • the method includes:
  • Step 601 The terminal-side device determines that a continuous uplink LBT failure occurs in the first BWP of the first cell.
  • Step 602 The terminal-side device switches to the second BWP of the first cell, and sends first information only in the second BWP of the first cell of the first cell and the second cell.
  • the first information is used to indicate that the terminal-side device has a continuous uplink LBT failure in the first cell.
  • the second cell is a cell where no continuous uplink LBT fails. It should be noted that the second cell is a cell where no continuous uplink LBT failure has occurred. It can mean that when the terminal-side device sends the first information, the terminal-side device has no continuous uplink LBT failure in the second cell, or it can refer to the terminal When the side device determines the uplink resource used to send the first information, the terminal side device does not cause continuous uplink LBT failure in the second cell.
  • the second BWP may include at least one of a resource for performing a random access process and an SR resource.
  • the second BWP may include resources for performing a random access procedure.
  • the resources for performing the random access process may include at least one of the resources of the two-step random access process and the resources of the four-step random access process.
  • the terminal-side device can use the resources of the random access process included in the second BWP to perform the random access process in the second BWP, and send the first information through the random access process. For details, refer to the process shown in FIG. 4 The description will not be repeated here.
  • the second BWP may also include SR resources, and the terminal-side device may initiate an SR process through the SR resources in the second BWP, so that the first information may be sent through the uplink resources requested by the SR process, and the specific process is not repeated here.
  • the terminal-side device may also determine whether there are available uplink resources in the second cell.
  • the available uplink resources in the second cell may refer to the uplink resources used for new transmission on the second cell, and may include but not limited to one or more of the following: configure authorized resources; through the C-RNTI of the terminal side device Scrambled PDCCH scheduling resources.
  • the terminal-side device When there are available uplink resources in the second cell, the terminal-side device does not send the first information through the uplink resources on the second cell. In a possible implementation, the terminal-side device determines the amount of uplink resources available in the second cell. The start time is before the sending time of msg A's payload data in the two-step random access process, or before the start time of the uplink resource indicated by the RAR message in the four-step random access process, or in the uplink of the SR request When the resource is sent before the time, the uplink resource of the second cell is not used.
  • the terminal-side device may not determine whether there are available uplink resources in the second cell, that is, regardless of whether there are available uplink resources in the second cell, the terminal side The devices all send the first information in the second BWP of the first cell.
  • the terminal-side device when the terminal-side device determines that a continuous uplink LBT failure occurs in the fourth BWP of the third cell, the terminal-side device has not yet generated the MAC CE including indication information for indicating that the third cell has a continuous uplink LBT failure. At this time, if the terminal-side device determines to switch the BWP, how the terminal-side device should handle it, there is currently no clear solution. For this reason, the embodiment of the present application also provides a method to solve the above-mentioned problem.
  • FIG. 7 it is a schematic flowchart of a communication method provided by an embodiment of this application.
  • Step 701 The terminal side device determines that a continuous uplink LBT failure occurs in the fourth BWP of the third cell.
  • the terminal-side device specifically determines that a continuous uplink LBT failure occurs, reference may be made to the previous description, which will not be repeated here.
  • Step 702 Before generating the third information, the terminal-side device performs the first operation if it determines to switch to the fifth BWP of the third cell.
  • the third information is used to indicate that the terminal-side device does not have continuous uplink LBT failure in the third cell.
  • the terminal-side device determines at the first moment that a continuous uplink LBT failure occurs in the fourth BWP of the third cell.
  • the terminal-side device determines to switch to the fifth BWP of the third cell at the second moment. Since continuous uplink LBT failures occur in both the third cell and the fifth cell, the terminal-side device can send a data packet carrying the third information through the fourth cell.
  • the terminal-side device generates the first data packet at the third time.
  • the first data packet is a newly transmitted data packet, and the third information can be included through a logical channel priority (Logical Channel Prioritization, LCP) process.
  • LCP Logical Channel Prioritization
  • the terminal-side device fails a continuous uplink LBT in the fifth cell, it can also be reported to the network-side device through the third information carried in the first data packet.
  • the third information is used to indicate that the terminal-side device has a continuous uplink LBT failure in the fifth cell.
  • the specific operation may be to set the value of the bit in the cell identity field corresponding to the fifth cell in the third information to the first value, for example, to 1.
  • the first data packet may be a MAC protocol data unit (protocol data unit, PDU).
  • PDU protocol data unit
  • the third information can be MAC CE, and the specific structure of MAC CE can be referred to as shown in Figure 5.
  • the MAC CE that causes continuous uplink LBT failure which can also be referred to as the LBT failure MAC CE.
  • the terminal side device when the terminal side device receives the DCI from the network side device, it switches to the fifth BWP indicated by the DCI.
  • the DCI is used to instruct the terminal-side device to switch to the fifth BWP.
  • the terminal side device when the terminal side device can receive the DCI from the network side device, it switches to the fifth BWP indicated by the DCI.
  • the terminal-side device may also actively trigger the BWP switch to switch to the fifth BWP.
  • the trigger condition for triggering the BWP handover can be a trigger condition other than the occurrence of a continuous uplink LBT failure.
  • a possible trigger condition is: to send different types The data triggers the BWP switch.
  • this is just an example, and there may be other conditions for triggering conditions, as long as it is not because a BWP handover triggered by a continuous uplink LBT failure occurs on the third cell.
  • the first operation may be any of the following operations:
  • the terminal-side device may also send the first data packet including the third information.
  • the MAC CE may include multiple cell identification fields.
  • FIG. 5 includes 31 cell identification fields: C1 to C31.
  • the value of the bit corresponding to a cell identity field is the first value, it means that the terminal-side device has a continuous uplink LBT failure in the cell corresponding to the cell identity field; the value of the bit corresponding to a cell identity field is the second
  • the value is value, it means that the terminal-side device does not have continuous uplink LBT failure in the cell corresponding to the cell identity field.
  • the specific values of the first value and the second value are not limited. For example, the first value is 1 and the second value is 0.
  • the value of the bit in the cell identity field corresponding to the third cell in the third information can be set to the second value, for example, set to 0 .
  • the terminal-side device groups the first data packet, it is determined that if there is no other serving cell except the third cell, the continuous uplink LBT failure occurs, and the third information is canceled, that is, the third information is not carried in the first data packet Third information
  • the network side device can accurately determine whether a continuous uplink LBT failure occurs in the third cell, thereby avoiding unnecessary BWP handover by mistakenly thinking that a continuous uplink LBT failure occurs in the third cell.
  • the terminal-side device no longer sends the third information, but may send the first data packet including the fourth information.
  • the fourth information is used to indicate that the terminal-side device has a continuous uplink LBT failure in the third cell.
  • the value of the bit in the cell identity field corresponding to the third cell in the fourth information can be set to the first value, for example, set to 1.
  • the terminal-side device may also send the first data packet including the fourth information.
  • the fourth information is used to indicate that the terminal-side device has a continuous uplink LBT failure in the third cell, and the fourth information may also be used to indicate a fourth BWP.
  • the fourth information may also include at least one BWP identification field as shown in FIG. For example, if the first value is 1, the second value is 0. When the value of the bit corresponding to C1 is 1, BWP1 indicates the identifier of the BWP that has failed continuous uplink LBT in the cell corresponding to C1. If the value of the bit corresponding to C1 is 0 and the value of the bit corresponding to C2 is 1, BWP1 indicates the identifier of the BWP that has failed continuous uplink LBT in the cell corresponding to C2. Other situations can be deduced by analogy. No longer.
  • BWP1 is the identifier of the BWP where the continuous upstream LBT failure occurred on the first serving cell where the continuous upstream LBT failure occurred.
  • a serving cell supports up to 4 dedicated BWPs, so the BWP identifier field can include at least 2 bits, and the specific number of bits included It is not limited, the number of dedicated BWPs is expanded later, this method is also applicable, and will not be repeated here.
  • the value of the bit in the cell identity field corresponding to the third cell in the fourth information can be set to the first value, for example, set to 1.
  • the fourth information may also include a BWP identification field, and the BWP identification field is used to carry the identification of the fourth BWP.
  • the network side device can accurately determine whether a continuous uplink LBT failure occurs in the third cell, and can further determine the BWP where the continuous uplink LBT fails.
  • the methods and operations implemented by the terminal-side device may also be implemented by components (for example, a chip or a circuit) that can be used for the terminal-side device.
  • the terminal-side device may include a hardware structure and/or a software module, which implements the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a certain function among the above-mentioned functions is executed by a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.
  • the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the functional modules in the various embodiments of the present application may be integrated in one processor, or may exist alone physically, or two or more modules may be integrated in one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • an embodiment of the present application further provides an apparatus 1000 for implementing the function of the terminal-side device or the network device in the above-mentioned method.
  • the device may be a software module or a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the apparatus 1000 may include: a processing unit 1001 and a communication unit 1002.
  • the communication unit may also be referred to as a transceiver unit, and may include a sending unit and/or a receiving unit, which are respectively configured to perform the sending and receiving steps of the terminal side device or the network device in the above method embodiment.
  • the processing unit 1001 is configured to determine that a continuous uplink occurs in the first bandwidth part BWP of the first cell, and the LBT fails after listening first;
  • the communication unit 1002 is configured to send first information to the network side device through the uplink resource in the second cell; the first information is used to indicate that the terminal side device has a continuous uplink LBT failure in the first cell;
  • the second cell is a cell where no continuous uplink LBT failure occurs.
  • processing unit 1001 is further configured to:
  • the communication unit When the first timer expires, if the communication unit does not receive the second information from the network side device in response to the first information, it switches to the second BWP of the first cell;
  • the second BWP includes resources for performing a random access process;
  • the second information is downlink control information DCI used to schedule the terminal-side device to perform BWP handover;
  • the second BWP is used in the second BWP to perform random access.
  • the resources of the entry process perform the random access process.
  • the communication unit is specifically configured to:
  • the terminal-side device When it is determined that the number of times the first information is sent is less than N, the terminal-side device sends the first information through the uplink resource in the second cell, where N is an integer greater than 1.
  • processing unit 1001 is further configured to:
  • the resource for performing the random access process is used to perform the random access process.
  • the random access process is a two-step random access process
  • the communication unit is configured to pass the preamble and the preamble in the two-step random access process.
  • the physical uplink shared channel PUSCH resource determined by the physical random access channel PRACH timing corresponding to the code sends the first information;
  • the random access process is a four-step random access process
  • the communication unit is configured to send the first information through an uplink resource allocated by a random access response RAR message in the four-step random access process .
  • the communication unit 1002 is specifically configured to:
  • the second BWP includes resources for performing a random access procedure
  • the terminal-side device uses the resources of the random access process to initiate a two-step random access process in the second BWP, when the start time of the uplink resource in the second cell in the time domain is located in the two-step random access
  • the terminal-side device transmits via the uplink resource in the second cell The first information
  • the terminal-side device uses the resources of the random access process to initiate a four-step random access process in the second BWP, when the start time of the uplink resource in the second cell in the time domain is located in the four-step random access process.
  • the terminal-side device Before the start time of the random access response to the uplink resource allocated by the RAR message in the access process, the terminal-side device sends the first information through the uplink resource in the second cell.
  • the first cell is a primary cell or a primary and secondary cell; the second cell is a secondary cell.
  • the processing unit 1001 is configured to determine that a continuous uplink occurs in the first bandwidth part BWP of the first cell, and the LBT fails after listening first; wherein, the first cell is a primary cell or a primary and secondary cell, and the second cell is a secondary cell. Cell; the second cell is a cell that does not have continuous uplink LBT failure and includes available uplink resources;
  • the communication unit 1002 is configured to switch to the second BWP of the first cell, and send first information in the second BWP of the first cell of the first cell and the second cell;
  • the information is used to indicate that the terminal-side device has a continuous uplink LBT failure in the first cell.
  • the second BWP includes resources for performing a random access procedure
  • the communication unit 1002 is specifically configured to:
  • the random access process is a two-step random access process, and the first information is sent through a physical uplink shared channel PUSCH resource corresponding to a preamble in the two-step random access process;
  • the random access process is a four-step random access process, and the first information is sent through an uplink resource allocated by a random access response RAR message in the four-step random access process.
  • the processing unit 1001 is configured to determine, through the communication unit 1002, that continuous uplink occurs in the fourth bandwidth part BWP of the third cell, listen first and then say LBT failure;
  • the processing unit 1001 is configured to cancel the continuous uplink LBT failure state of the third cell if it is determined to switch to the fifth BWP of the third cell before generating the third information; the third information is used for Indicate that the terminal-side device does not have continuous uplink LBT failure in the third cell.
  • processing unit 1001 is specifically configured to:
  • FIG. 11 shows an apparatus 1100 provided by an embodiment of the application, and the apparatus shown in FIG. 11 may be a hardware circuit implementation of the apparatus shown in FIG. 10.
  • the communication device can be used to perform the functions of the terminal-side equipment in the foregoing method embodiments.
  • FIG. 11 only shows the main components of the communication device.
  • the apparatus 1100 shown in FIG. 11 includes at least one processor 1120.
  • the device 1100 may further include at least one memory 1130 for storing program instructions and/or data.
  • the memory 1130 and the processor 1120 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 1120 may operate in cooperation with the memory 1130.
  • the processor 1120 may execute program instructions stored in the memory 1130. At least one of the at least one memory may be included in the processor.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processing circuit (digital signal processor, DSP), a dedicated integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • the apparatus 1100 may further include a communication interface 1110 for communicating with other devices through a transmission medium, so that the apparatus used in the apparatus 1100 can communicate with other devices.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface.
  • the transceiver when the communication interface is a transceiver, the transceiver may include an independent receiver and an independent transmitter; it may also be a transceiver with integrated transceiver functions, or an interface circuit.
  • the device 1100 may also include a communication line 1140.
  • the communication interface 1110, the processor 1120, and the memory 1130 may be connected to each other through a communication line 1140;
  • the communication line 1140 may be a peripheral component interconnection standard (peripheral component interconnect, PCI for short) bus or an extended industry standard architecture (extended industry standard architecture) , Referred to as EISA) bus and so on.
  • the communication line 1140 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 11, but it does not mean that there is only one bus or one type of bus.
  • the processor 1120 is configured to determine that a continuous uplink occurs in the first bandwidth part BWP of the first cell, and the LBT fails after listening first;
  • the communication interface 1110 is configured to send first information to the network-side device through the uplink resource in the second cell; the first information is used to indicate that the terminal-side device has a continuous uplink LBT failure in the first cell;
  • the second cell is a cell where no continuous uplink LBT failure occurs.
  • the processor 1120 is further configured to:
  • the communication unit When the first timer expires, if the communication unit does not receive the second information from the network side device in response to the first information, it switches to the second BWP of the first cell;
  • the second BWP includes resources for performing a random access process;
  • the second information is downlink control information DCI used to schedule the terminal-side device to perform BWP handover;
  • the resource for performing the random access process is used to perform the random access process.
  • the communication unit is specifically configured to:
  • the terminal-side device When it is determined that the number of times the first information is sent is less than N, the terminal-side device sends the first information through the uplink resource in the second cell, where N is an integer greater than 1.
  • the processor 1120 is further configured to:
  • the resource for performing the random access process is used to perform the random access process.
  • the random access process is a two-step random access process
  • the communication unit is configured to pass the preamble and the preamble in the two-step random access process.
  • the physical uplink shared channel PUSCH resource determined by the physical random access channel PRACH timing corresponding to the code sends the first information;
  • the random access process is a four-step random access process
  • the communication unit is configured to send the first information through an uplink resource allocated by a random access response RAR message in the four-step random access process .
  • the communication interface 1110 is specifically used for:
  • the second BWP includes resources for performing a random access procedure
  • the terminal-side device uses the resources of the random access process to initiate a two-step random access process in the second BWP, when the start time of the uplink resource in the second cell in the time domain is located in the two-step random access
  • the terminal-side device transmits via the uplink resource in the second cell The first information
  • the terminal-side device uses the resources of the random access process to initiate a four-step random access process in the second BWP, when the start time of the uplink resource in the second cell in the time domain is located in the four-step random access process.
  • the terminal-side device Before the start time of the random access response to the uplink resource allocated by the RAR message in the access process, the terminal-side device sends the first information through the uplink resource in the second cell.
  • the first cell is a primary cell or a primary and secondary cell; the second cell is a secondary cell.
  • the processor 1120 is configured to determine that a continuous uplink occurs in the first bandwidth part BWP of the first cell, and the LBT fails after listening first; wherein, the first cell is a primary cell or a primary and secondary cell, and the second cell is a secondary cell. Cell; the second cell is a cell that does not have continuous uplink LBT failure and includes available uplink resources;
  • the communication interface 1110 is used to switch to the second BWP of the first cell, and send first information in the second BWP of the first cell of the first cell and the second cell;
  • the information is used to indicate that the terminal-side device has a continuous uplink LBT failure in the first cell.
  • the second BWP includes resources for performing a random access procedure
  • the communication interface 1110 is specifically used for:
  • the random access process is a two-step random access process, and the first information is sent through a physical uplink shared channel PUSCH resource corresponding to a preamble in the two-step random access process;
  • the random access process is a four-step random access process, and the first information is sent through an uplink resource allocated by a random access response RAR message in the four-step random access process.
  • the processor 1120 is configured to determine, through the communication interface 1110, that a continuous uplink occurs in the fourth bandwidth part BWP of the third cell, listen first and then say LBT failure;
  • the processor 1120 is configured to cancel the continuous uplink LBT failure state of the third cell if it is determined to switch to the fifth BWP of the third cell before generating the third information; the third information is used for Indicate that the terminal-side device does not have continuous uplink LBT failure in the third cell.
  • the processor 1120 is specifically configured to:
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

本申请实施例提供一种通信方法及装置，其中方法包括：终端侧设备确定在第一小区的第一BWP中发生连续上行LBT失败时，可以通过第二小区中的上行资源向网络侧设备指示在所述第一小区中发生连续上行LBT失败。通过上面的方法，终端侧设备通过没有发生连续上行LBT失败的第二小区指示在所述第一小区中发生连续上行LBT失败，可以让网络侧设备更快地确定第一小区发生连续上行LBT失败，从而可以尽快恢复LBT失败。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2020年02月13日提交中国专利局、申请号为202010091524.1、申请名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，特别涉及一种通信方法及装置。
背景技术
随着移动数据业务量的不断增长，频谱资源越来越紧张，仅使用授权频谱资源进行业务传输已经不能满足业务量需求，因此长期演进(Long Term Evolution，LTE)系统以及新无线(new radio，NR)系统等考虑在非授权频谱上进行业务传输。由于非授权频谱是很多不同空口技术可以共享的频谱，比如满足电气和电子工程师协会(Institute of Electrical and Electronics Engineers，IEEE)802.11协议的无线局域网，LTE许可频谱辅助接入(License Assisted Access，LAA)等。为了避免干扰，终端侧设备在使用非授权频谱进行业务传输之前，可以通过信道接入过程在非授权频谱中竞争信道。如果信道接入成功，那么可以通过非授权频谱进行数据传输，如果信道接入失败，那么就不能进行数据传输。
当终端侧设备在服务小区中激活的带宽部分(bandwidth part，BWP)上发生连续(consistent)上行先听后说(listen before talk，LBT)失败，终端侧设备可以触发LBT失败媒体接入控制(medium access control，MAC)控制元素(control element，CE)上报给网络侧设备，该LBT失败MAC CE用于指示该服务小区是否发生连续上行LBT失败。
由于LBT失败MAC CE不能在已经发生连续上行LBT失败的服务小区上发送，关于如何发送LBT失败MAC CE是一个亟待解决的问题。
发明内容
本申请实施方式的目的在于提供一种通信方法及装置，用以解决终端侧设备如何发送LBT失败MAC CE的问题。
第一方面，本申请提供一种通信方法，包括：终端侧设备确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；所述终端侧设备通过第二小区中的上行资源向网络侧设备发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败；所述第二小区为没有发生连续上行LBT失败的小区。
通过上面的方法，终端侧设备在第一小区中发生连续上行先听后说LBT失败时，可以通过第二小区发送第一信息，可以让网络侧设备更快地根据第一信息确定第一小区发生LBT失败，从而可以尽快恢复LBT失败。
在一种可能的实施方式中，所述方法还包括：所述终端侧设备启动第一定时器，所述第一定时器的定时时长为第一时长；当所述第一定时器超时时，所述终端侧设备若未接收 到来自所述网络侧设备的响应所述第一信息的第二信息，则切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；所述第二信息为用于调度所述终端侧设备进行BWP切换的下行控制信息DCI；所述终端侧设备在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
上面的方法中，通过启动第一定时器，可以避免终端侧设备频繁的执行BWP切换。
在一种可能的实施方式中，所述终端侧设备通过第二小区中的上行资源发送所述第一信息，包括：所述终端侧设备在确定所述第一信息的发送次数小于N时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息，N为大于1的整数。
在一种可能的实施方式中，所述方法还包括：所述终端侧设备确定所述第一信息的发送次数不小于N时，所述终端侧设备切换到所述第一小区的第二BWP，N为大于1的整数；所述第二BWP中包括进行随机接入过程的资源；所述终端侧设备在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
在一种可能的实施方式中，所述方法还包括：所述随机接入过程为两步随机接入过程，所述终端侧设备通过所述两步随机接入过程中的根据所述前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源发送所述第一信息；或者，所述随机接入过程为四步随机接入过程，所述终端侧设备通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
在一种可能的实施方式中，所述终端侧设备通过第二小区中的上行资源发送所述第一信息，包括：所述终端侧设备切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；所述终端侧设备使用所述随机接入过程的资源在所述第二BWP中发起两步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述两步随机接入过程中根据前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息；或者，所述终端侧设备使用所述随机接入过程的资源在所述第二BWP中发起四步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息。
在一种可能的实施方式中，所述第一小区为主小区或者主辅小区；所述第二小区为辅小区。
第二方面，本申请提供一种通信方法，包括：终端侧设备确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；其中，所述第一小区为主小区或者主辅小区，所述第二小区为辅小区；所述第二小区为没有发生连续上行LBT失败的小区且包括可用的上行资源；所述终端侧设备切换到所述第一小区的第二BWP，并在所述第一小区和第二小区中的所述第一小区的第二BWP中发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败。
在一种可能的实施方式中，所述第二BWP中包括进行随机接入过程的资源；所述终端侧设备在所述第一小区和第二小区中的所述第一小区的第二BWP中发送第一信息，包括：所述终端侧设备在所述第二BWP中使用所述随机接入过程的资源进行随机接入过程；所述随机接入过程为两步随机接入过程，所述终端侧设备通过所述两步随机接入过程中的前导码对应的物理上行共享信道PUSCH资源发送所述第一信息；或者，所述随机接入过 程为四步随机接入过程，所述终端侧设备通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
第三方面，本申请提供一种通信方法，包括：终端侧设备确定在第三小区的第四带宽部分BWP中发生连续上行先听后说LBT失败；所述终端侧设备在生成第三信息之前，若确定切换到所述第三小区的第五BWP，则取消所述第三小区的连续上行LBT失败状态；所述第三信息用于指示所述终端侧设备在所述第三小区中没有发生连续上行LBT失败。
上面的方法中，终端侧设备在第三小区的第四BWP中发生连续上行LBT失败，如果终端侧设备切换到第三小区的第五BWP，可以取消第三小区的连续上行LBT失败状态，避免网络侧失败收到指示第三小区发生连续上行LBT失败状态的LBT失败MAC CE时，错误理解第三小区的状态。
在一种可能的实施方式中，所述确定切换到所述第三小区的第五BWP，包括：所述终端侧设备接收来自网络侧设备的下行控制信息DCI，所述DCI用于指示所述终端侧设备切换到所述第五BWP。
第四方面，本申请还提供一种通信装置，该通信装置具有实现上述第一方面至第三方面中任一方面提供的任一方法。该通信装置可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或单元。
在一种可能的实现方式中，该通信装置包括：处理器，该处理器被配置为支持该通信装置执行以上所示方法中终端设备的相应功能。该通信装置还可以包括存储器，该存储可以与处理器耦合，其保存该通信装置必要的程序指令和数据。可选地，该通信装置还包括通信接口，该通信接口用于支持该通信装置与网络侧设备等设备之间的通信。
在一种可能的实现方式中，该通信装置包括相应的功能单元，分别用于实现以上方法中的步骤。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元。
在一种可能的实施方式中，通信装置的结构中包括处理单元和通信单元，这些单元可以执行上述方法示例中相应功能，具体参见第一方面或第三方面提供的方法中的描述，此处不做赘述。
第五方面，本申请提供一种通信装置，所述通信装置包括处理器，当所述处理器执行存储器中的计算机程序或指令时，如第一方面至第三方面任一方面所述的方法被执行。
第六方面，本申请提供一种通信装置，所述通信装置包括处理器和存储器，所述存储器用于存储计算机程序或指令；所述处理器用于执行所述存储器所存储的计算机程序或指令，以使所述通信装置执行如第一方面至第三方面任一方面中所示的相应的方法。
第七方面，本申请提供一种通信装置，所述通信装置包括处理器、存储器和收发器，所述收发器，用于接收信号或者发送信号；所述存储器，用于存储计算机程序或指令；所述处理器，用于从所述存储器调用所述计算机程序或指令执行如第一方面至第三方面任一方面所述的方法。
第八方面，本申请提供一种通信装置，所述通信装置包括处理器和接口电路，所述接口电路，用于接收代码指令并传输至所述处理器；所述处理器运行所述代码指令以执行如第一方面至第三方面任一方面所示的相应的方法。
第九方面，本申请提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序或指令，当计算机读取并执行所述计算机程序或指令时，使得第一方面至第三 方面任一方面所述的方法被实现。
第十方面，本申请提供一种包括指令的计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得第一方面至第三方面任一方面所述的方法被实现。
第十一方面，本申请提供一种芯片，包括处理器，所述处理器与存储器耦合，用于执行所述存储器中存储的计算机程序或指令，当所述处理器执行所述计算机程序或指令时，使得第一方面至第三方面任一方面所述的方法被实现。
第十二方面，本申请提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述第一方面至第三方面任一方面中的方法。
附图说明
图1为适用于本申请实施例的双连接架构示意图；
图2为一种四步随机接入过程流程示意图；
图3为一种两步随机接入过程流程示意图；
图4为本申请实施例提供的一种通信方法流程示意图；
图5为本申请实施例提供的一种MAC CE结构示意图；
图6为本申请实施例提供的一种通信方法流程示意图；
图7为本申请实施例提供的一种通信方法流程示意图；
图8为本申请实施例提供的一种时序示意图；
图9为本申请实施例提供的另一种MAC CE结构示意图；
图10为本申请实施例提供的一种通信装置结构示意图；
图11为本申请实施例提供的一种通信装置结构示意图。
具体实施方式
下面结合说明书附图对本申请实施例做详细描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：第五代移动通信(the 5th Generation mobile communication technology，5G)系统(例如新无线(New Radio，NR))、长期演进(Long Term Evolution，LTE)系统。其中LTE系统可以包括LTE频分双工(Frequency Division Duplex，FDD)系统和LTE时分双工(Time Division Duplex，TDD)等，在此不做限制。
本申请实施例中，“多个”是指两个或两个以上，鉴于此，本申请实施例中也可以将“多个”理解为“至少两个”。“至少一个”，可理解为一个或多个，例如理解为一个、两个或更多个。例如，包括至少一个，是指包括一个、两个或更多个，而且不限制包括的是哪几个。例如，包括A、B和C中的至少一个，那么包括的可以是A、B、C、A和B、A和C、B和C、或A和B和C。同理，对于“至少一种”等描述的理解，也是类似的。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。
本申请实施例中，终端侧设备，可以为具有无线收发功能的设备或可设置于任一设备中的芯片，也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、 移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。本申请实施例中的终端侧设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。
网络侧设备，可以是LTE系统中的演进型基站(evolutional node B，eNB)，可以是NR系统中的下一代基站(next Generation node B，gNB)等。
本申请实施例可以应用于支持单基站的载波聚合(carrier aggregation，CA)技术的网络侧设备和终端侧设备，以及支持跨基站的载波聚合技术，例如双连接(Dual-Connectivity，DC)技术，的网络侧设备和终端侧设备。网络侧设备和终端侧设备可以将至少2个成员载波(Component Carrier,CC)聚合在一起以支持更大的传输带宽，其中一个CC可以对应一个独立的小区。其中，单基站的载波聚合技术常常简称为载波聚合技术，如下没有特别说明，载波聚合技术均指单基站载波聚合技术。
需要说明的是，载波聚合技术和双连接技术至少存在以下不同之处：
1，在双连接下，数据流在分组数据汇聚协议(packet data convergence protocol，PDCP)层分离和合并，数据流通过多个基站同时传送给用户；而载波聚合下，数据流在媒体接入控制(medium access control，MAC)层分离和合并。
2，双连接是在不同站点之间的聚合，通常为一个宏基站和一个微基站，两者间通过X2接口相连；而载波聚合是在同一个站点中聚合不同的CC。
在双连接场景中，可以包括一个主小区组(master cell group，MCG)，除MCG之外的小区组可以称为辅小区组(secondary cell group，SCG)，具体可以参考图1所示。图1中，终端侧设备104分别与网络侧设备102以及网络侧设备106建立连接。对于终端侧设备104来说，网络侧设备102中的小区组可以是MCG，网络侧设备106中的小区组可以是SCG。
在MCG下，可能会有很多个小区，其中有一个用于发起初始接入的小区，这个小区称为主小区(primary cell，PCell)，其它的小区称为辅小区(secondary cell，SCell)。MCG中的PCell和MCG中的SCell通过载波聚合技术联合在一起。相应地，在SCG中下也会有一个最主要的小区，可以称为主辅小区(primary secondary cell，PSCell)，SCG中其它的小区称为辅小区。SCG中的PSCell和SCG中的SCell也是通过CA技术联合在一起。为了描述方便，目前的协议中定义了一个术语：特殊小区(special cell，sPCell)，对于双连接场景，术语“特殊小区”是指MCG中的PCell或SCG中的PSCell，否则，术语“特殊小区”是指PCell。
当终端侧设备接入小区时，除了初始BWP之外，网络侧设备可以给终端侧设备配置专用的BWP，最多配置4个专用的BWP，网络侧设备可激活其中一个BWP。一个终端侧设备在一个小区下同时被激活只一个BWP。终端侧设备可以在激活的BWP中传输数据。
本申请实施例中，网络侧设备在非授权频谱的小区上为终端侧设备配置BWP并在所配置的BWP中激活一个BWP，终端侧设备与网络侧设备可以通过非授权频谱进行通信。终端侧设备通过非授权频谱与网络侧设备进行通信之前，终端侧设备执行上行LBT竞争信 道。
需要说明的是，LBT，也可以称为信道接入过程，为了描述方便，以下均统一称为LBT。LBT的类型有两种：类型一，基于固定时长的LBT，终端侧设备如果在固定时长内，在信道内检测到的信号的能量低于预设门限，则认为信道处于空闲状态，从而可以占用信道，否则要重新竞争信道。
相应的，对于类型一的LBT，终端侧设备如果在固定时长内，在信道内检测到的信号的能量高于预设门限，则认为信道处于忙碌状态，那么可以确定LBT失败。终端侧设备只有在确定信道处于空闲状态的时候，才可以占用信道进行数据传输。
类型二，是基于回退机制的能量检测，终端侧设备随机选取一个值A，A为大于0的整数，在数据传输起始点之前，终端侧设备在检测到至少A个空闲的能量检测的时隙之后，才认为信道处于空闲状态，否则，认为信道处于忙碌状态。其中，数据的传输起始点可以是指终端侧设备待传输数据的数据传输的起始时刻。
相应的，对于类型二的LBT，如果在数据传输起始点之前，终端侧设备还没有检测到至少A个空闲的能量检测的时隙，那么可以确定LBT失败。例如数据在是一个时隙(slot)内进行传输，这个slot包括14个符号(分别为符号0到13)，假如终端侧设备从符号0开始传输数据，如果在符号0的起始时刻，终端侧设备还没有检测到至少A个空闲的能量检测的时隙，那么可以确定发生LBT失败。
终端侧设备在激活的BWP中执行上行LBT时，当终端侧设备确定在该BWP中每发生一次上行LBT失败，可以执行以下操作：1、将LBT失败计数器(LBT_FAIL_COUNTER)的计数值加1，其中计数器的初始值为0；2、启动或重启定时器(该定时器可以为3GPP标准中定义的lbtFailureDetectionTimer)，所述定时器的定时时长可以为网络侧设备配置的时长。
在定时器超时之前，如果LBT失败计数器的计数值达到阈值，则终端侧设备可以确定该激活BWP发生连续上行LBT失败(consistent LBT failure)。在定时器超时的情况下，终端侧设备可以重置计数器的计数值为0。
本申请实施例中，终端侧设备确定服务小区发生连续上行LBT失败时，可以向网络侧设备发送LBT失败MAC CE，为此本申请实施例提供一种发送LBT失败MAC CE的方法，下面将详细描述。
本申请实施例提供的方法涉及两步随机接入过程和四步随机接入过程，下面分别描述。
需要说明的是，四步随机接入过程包括基于竞争的四步随机接入过程和基于非竞争的四步随机接入过程，本申请实施例涉及到的是基于竞争的四步随机接入过程，在没有明确说明的情况下，本申请实施例中所描述的“四步随机接入过程”均是指基于竞争的四步随机接入过程。
如图2所示，基于竞争的四步随机接入过程包括以下步骤：
步骤210，终端侧设备向网络侧设备发送前导码(preamble)。
其中，所述前导码也称为随机接入过程的消息1(msg 1)。
如果网络侧设备成功检测到终端侧设备发送的前导码，则发送这个前导码对应的随机接入响应(random access response,RAR)消息。
步骤220：网络侧设备向终端侧设备发送RAR消息。
RAR消息也可以称为消息2(msg 2)。RAR消息中包含上行定时提前量、为消息3(msg  3)的传输所分配的上行授权(UL grant)、网络侧设备分配的临时小区无线网络临时标识(cell radio network temporary identifier,temporary C-RNTI)等。
调度RAR消息的物理下行控制信道(physical downlink control channel，PDCCH)采用随机接入无线网络临时标识(random access radio network temporary identifier，RA-RNTI)加扰。在终端侧设备发送了preamble后，可以在RAR响应窗口内根据preamble对应的RA-RNTI值来监听对应的PDCCH。如果终端侧设备通过监听的PDCCH获取的RAR消息中携带的preamble索引对应的preamble与消息1发送的preamble一致，则停止监听RAR消息。
相应的，如果终端侧设备在RAR时间窗内没有接收到RAR消息，或接收到的RAR消息中没有一个preamble索引对应的preamble与自己发送的preamble相符合，则认为此次随机接入过程失败。
步骤230：终端侧设备向网络侧设备发送基于调度传输(scheduled transmission)的消息，即消息3。
终端侧设备根据消息2中的上行授权和上行定时提前量信息，通过物理上行共享信道(physical uplink shared channel，PUSCH)向网络侧设备发送消息3。
步骤240：终端侧设备接收网络侧设备发送的竞争解决，即消息4。
当多个终端侧设备使用相同的前导码发起随机接入时，就会发生竞争。竞争相同资源的终端侧设备中最多只有一个终端侧设备能够接入成功。此时网络侧设备通过PDSCH向终端侧设备发送竞争解决消息。
具体的，终端侧设备在发送完消息3后，开启竞争解决定时器(mac-Contention Resolution Timer)，并利用RAR消息中指示的临时C-RNTI或者网络侧设备预先配置的C-RNTI来监听PDCCH，若在竞争解决定时器超时前，终端侧设备接收到来自网络侧设备发给自己的竞争解决消息，则认为随机接入过程成功，否则确定随机接入过程失败。
如图3所示，两步随机接入过程包括以下步骤：
步骤310：终端侧设备向网络侧设备发送消息A(message A，msg A)。
具体地，该msg A包括随机接入信号和载荷数据。其中，载荷数据通过PUSCH资源承载，该PUSCH资源就是根据前导码(preamble)以及所述前导码对应的物理随机接入信道(physical random access channel，PRACH)时机(occasion)确定的物理上行共享信道(physical uplink shared channel，PUSCH)资源。
随机接入信号可以包括前导码和解调参考信号(demodulation reference signal,DMRS)中的至少一项，该随机接入信号用于网络侧设备对载荷数据的接收，例如，可以根据该随机接入信号确定载荷数据的传输边界(比如传输载荷数据的时隙(slot)的起始位置和结束位置)、解调载荷数据等。该载荷数据可以为控制面数据和用户面数据中的至少一项，该载荷数据可以包括但不限于RRC连接请求、终端侧设备的标识、调度请求、缓存状态报告(buffer status report,BSR)和业务数据中的任意一项或多项。
可选地，终端侧设备的标识可以为C-RNTI、临时移动用户标识(serving-temporary mobile subscriber identity,s-TMSI)、非激活状态下终端侧设备的标识(resumeIdentity)等等。具体携带什么标识，取决于不同的随机接入触发事件，本申请实施例不做限定。需说明的是，该终端侧设备的标识可以全部携带于载荷数据中，或者可以部分携带于载荷数据中，部分携带于随机接入信号中。
步骤320：网络侧设备向终端侧设备发送消息B(message B，msg B)。
具体地，msg B用于承载针对msg A中的随机接入信号和载荷数据的响应消息。该响应消息可以至少包括以下之一：临时C-RNTI、定时提前命令(timing advance command)、上行授权、竞争解决标识(contention resolution identity)等。其中，竞争解决标识可以为载荷数据的部分或者全部内容。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请实施例主要提出了以下方案：
1，当在第一小区(例如第一小区为SpCell)中发生连续上行LBT失败，终端侧设备可以发送LBT失败MAE CE，所述LBT失败MAC CE用于指示在所述第一小区中发生连续上行LBT失败。终端侧设备可以在发起随机接入过程期间，在终端侧设备切换后的BWP中发送所述LBT失败MAC CE。
2，终端侧设备在发送LBT失败MAC CE之后，可以不必为了恢复第一小区的上行LBT失败而执行BWP切换。
当在第一小区(例如第一小区为SpCell)中发生连续上行LBT失败，终端侧设备可以发送LBT失败MAE CE，所述LBT失败MAC CE用于指示在所述第一小区中发生连续上行LBT失败。终端侧设备可以通过第二小区(例如第二小区可以为SCell)的CG/DG grant发送所述LBT失败MAC CE，所述第二小区为没有发生连续上行LBT失败的小区。
需要说明的是，终端侧设备在发送LBT失败MAC CE之后，在接收到网络侧设备指示进行BWP切换的DCI之前，可以不执行BWP切换。
3，终端侧设备在发送LBT失败MAC CE之后，可以启动定时器，在定时器超时之前，等待来自网络侧设备的DCI，而不执行BWP切换，该DCI指示终端侧设备进行BWP切换。定时器超时时，终端侧设备如果没有接收到指示终端侧设备进行BWP切换的DC，则可以会执行BWP切换，并发起随机接入过程。
在这种情况下，终端侧设备如果发起4步随机接入过程，则LBT失败MAC CE可以承载在msg 3中；终端侧设备如果发起2步随机接入过程，则LBT失败MAC CE可以承载在msg A中。
4，当终端侧设备在第一小区(例如第一小区为SpCell)中发生连续上行LBT失败，并且终端侧设备执行BWP切换，并在切换的BWP中发起随机接入过程时，在随机接入过程中，如果没有发生连续上行LBT失败的第二小区(例如第二小区可以为SCell)中有可用的上行资源，且第二小区中可用的上行资源的起始时刻，位于两步随机接入过程中的msg A的荷载数据的发送时刻之前，或者位于四步随机接入过程中RAR消息指示的上行资源的起始时刻之前，终端侧设备可以在第一小区中发送LBT失败MAC CE。在这种情况下，终端侧设备将不会在随机接入过程中发送LBT失败MAC CE，但是由于已经启动了BWP切换，因此终端侧设备完成终端侧设备后才能将切换后的BWP通知网络侧设备。
5，当终端侧设备在第三小区(例如第三小区为SCell)中发生连续上行LBT失败，在生成用于指示发生连续上行LBT失败的LBT失败MAC CE之前，如果终端侧设备接收到指示所述终端侧设备执行BWP切换的DCI，则取消第三小区的连续上行LBT失败状态。
结合前面的描述，如图4所示，为本申请实施例提供的一种通信方法流程示意图。图4所示的方法流程中，第一小区和第二小区都可以为终端侧设备提供服务。图4所示的方法流程应用于网络侧设备采用载波聚合技术进行通信的场景时，第一小区可以为主小区，第二小区可以为辅小区。图4所示的方法流程应用于网络侧设备采用双连接技术进行通信的场景时，第一小区可以为主小区，第二小区可以为与第一小区处于同一主小区组中的辅小区。或者第一小区可以为主辅小区；第二小区可以为与第一小区处于同一辅小区组中的辅小区。参见图4，该方法包括：
步骤401：终端侧设备确定在第一小区的第一BWP中发生连续上行LBT失败。
需要说明的是，第一BWP为网络侧设备为终端侧设备在第一小区中激活的BWP。终端侧设备具体如何发生连续上行LBT失败，本申请实施例并不限定，例如可以参考前面的描述，在此不再赘述。
步骤402：终端侧设备通过第二小区中的上行资源向网络侧设备发送第一信息。
其中，所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败。
进一步的，第二小区为没有发生连续上行LBT失败的小区。需要说明的是，第二小区为没有发生连续上行LBT失败的小区，可以是指终端侧设备发送第一信息时，终端侧设备确定第二小区中没有发生连续上行LBT失败，也可以是指终端侧设备确定用来发送第一信息的上行资源时，终端侧设备确定第二小区中没有发生连续上行LBT失败。
需要说明的是，本申请实施例中，第二小区中的上行资源是终端侧设备用来做新传的上行资源，例如第二小区中的上行资源可以包括但不限于以下一项或多项：
配置授权(configured grant)资源；
通过终端侧设备的小区无线网络临时标识(cell radio network temporary identity，C-RNTI)加扰的物理下行控制信道(physical downlink control channel，PDCCH)调度的资源。
其中，可用于上行传输的配置授权资源，无需网络侧设备的动态调度，终端侧设备就可以在配置授权的上行资源上发送上行数据，这些资源包括但不限于非授权的新无线(new radio-unlicensed，NR-U)系统中配置授权方式1(configured grant type 1)和配置授权方式2(configured grant type 2)的上行资源。
第一种配置方式，配置授权方式1：网络侧设备可以通过半静态资源分配的方式预配置终端侧设备上行传输所需的资源，即配置授权资源，也可以称为预配置上行授权(configured UpLink grant)，以下均称为配置授权资源。应理解的是，所述配置授权资源可以按周期出现，不用终端侧设备每次发送上行传输前都先获得上行授权。例如，网络侧设备可以通过无线资源控制(radio resource control，RRC)信令配置上行传输的配置授权资源。RRC信令还可以包括配置授权资源的周期，终端侧设备从而可以在配置授权资源上传输数据。
第二种配置方式，配置授权方式2：网络侧设备可以通过RRC信令指示配置授权资源输的部分信息，例如，配置授权资源的周期等。另外，网络侧设备还可以通过物理层信令指示配置授权资源，该物理层信令还用于激活配置授权资源，终端侧设备从而可以在配置授权资源上传输数据。
需要说明的是，上述第一种配置方式的命名不仅仅局限于配置授权方式1，还可以有 其他命名，本申请实施例对此不作限制。同样，第二种配置方式的命名也不仅仅局限于配置授权方式2，还可以有其他命名。本申请实施例对第一种配置方式、第二种配置方式适用的通信系统也不做限制，可以是LTE通信系统，也可以是5G通信系统，也可以是其他通信系统。
本申请实施例中，第一信息的具体实现方式并不限定。一种可能的实现方式中，第一信息是一个MAC CE，比如LBT失败MAC CE。举例来说，如图5所示，为本申请实施例提供的一种MAC CE结构示意图。图5所示的MAC CE包括多个小区标识域，例如图5中包括31个小区标识域：C1至C31。一个小区标识域对应的比特位的取值为第一值时，表示终端侧设备在这个小区标识域对应的小区中发生连续上行LBT失败；一个小区标识域对应的比特位的取值为第二值时，表示终端侧设备在这个小区标识域对应的小区中没有发生连续上行LBT失败。第一值和第二值的具体取值并不限定，例如第一值为1，第二值为0。
图5所示的MAC CE还可以包括主小区域，图5中以P表示，在实际应用中，还可以采用其他方式表示主小区域，本申请实施例对此并不限定，主小区域用于指示终端侧设备在主小区中是否发生连续上行LBT失败。类似地，主小区域对应的比特位的取值为第一值时，表示终端侧设备在主小区中发生连续上行LBT失败；主小区域对应的比特位的取值为第二值时，表示终端侧设备在主小区中没有发生连续上行LBT失败。第一值和第二值的具体取值并不限定，例如第一值为1，第二值为0。
图5所示的MAC CE还可以包括其他域，例如包括保留(reserved，R)域等，在此不再逐一举例。
结合前面的描述，当第一信息是LBT失败MAC CE时，当终端侧设备根据第二小区中的上行资源做逻辑信道优先级复用，根据得到的复用结果表明第二小区中的上行资源可以包括该LBT失败MAC CE以及该LBT失败MAC CE的子头时，终端侧设备可以在所述第二小区中的上行资源上发送第一信息。
本申请实施例中，终端侧设备还可以进行BWP切换。其中，BWP切换是指激活的BWP从当前BWP切换(switch)到另外一个BWP上。进行BWP切换之后，终端侧设备停止使用切换前BWP，并开始使用切换后的BWP，下面分别进行描述。
实现方式一：
步骤一：终端侧设备确定在第一小区的第一BWP中发生连续上行LBT失败。
步骤二：终端侧设备通过第二小区中的上行资源发送第一信息，并可以启动第一定时器。
其中，所述第一定时器的定时时长为第一时长；第一时长可以为网络侧设备配置的，也可以是终端侧设备自主确定的，也可以是通信协议中规定的时长，还可以是通过其他方式确定的，本申请实施例对此并不限定。
本申请实施例中，第一定时器启动时，开始计时。当第一定时器计时的时长为第一时长时，第一定时器计时结束，此时可以认为第一定时器超时。
步骤三：第一定时器启动之后，终端侧设备可以在以下任一种情况下，进行BWP切换。
情况1：第一定时器启动之后，第一定时器在运行期间，终端侧设备如果接收到来自网络侧设备的第二信息，则可以切换到所述第二信息指示的第三BWP中，并停止第一定 时器。其中所述第二信息为用于调度所述终端侧设备进行BWP切换的下行控制信息(downlink control information，DCI)，所述第二信息用于指示终端侧设备切换到第三BWP。
情况2：所述第一定时器超时时，意味着从第一定时器启动到第一定时器超时的第一时长内，终端侧设备都未接收到来自网络侧设备的响应所述第一信息的第二信息，则终端侧设备可以主动进行BWP切换，例如可以切换到所述第一小区的第二BWP。
需要说明的是，第一定时器运行期间，终端侧设备不主动在第一小区上进行BWP切换，只有在接收到网络侧设备的第二信息时执行BWP切换。
需要说明的是，第二BWP与第三BWP可以为相同的BWP，也可以为不同的BWP，是本申请实施例并不限定。
步骤四：终端侧设备完成BWP切换，实现连续上行LBT失败的恢复。
下面以终端侧设备切换到第二BWP中为例进行描述。
本申请实施例中，第二BWP中可以包括进行随机接入过程的资源以及调度请求(scheduling request，SR)资源中的至少一项。进行随机接入过程资源可以包括进行两步随机接入过程的资源和进行四步随机接入过程的资源中的至少一项。其中，进行两步随机接入过程的资源包括发送前导码(preamble)的PRACH资源，和根据所述前导码以及所述前导码对应的PRACH时机确定的PUSCH资源。
终端侧设备可以通过在第二BWP中进行随机接入过程或者SR过程，实现连续上行LBT失败的恢复。
第一种可能的实现方式，终端侧设备可以在第二BWP中使用第二BWP中包括的进行随机接入过程的资源进行随机接入过程。
需要说明的是，终端侧设备在第二BWP中进行的随机接入过程可以为两步随机接入过程，也可以为四步随机接入过程。例如，第二BWP中只包括两步随机接入过程的资源时，终端侧设备可以在第二BWP中进行两步随机接入过程；第二BWP中只包括四步随机接入过程的资源时，终端侧设备可以在第二BWP中进行四步随机接入过程；第二BWP中包括两步随机接入过程的资源和四步随机接入过程的资源时，终端侧设备根据参考信号接收功率(Reference Signal Received Power，RSRP)确定发起两步随机接入过程还是四步随机接入过程。当终端侧设备确定参考信号接收功率大于阈值时则终端侧设备发起两步随机接入过程，当终端侧设备确定参考信号接收功率小于或等于阈值时则终端侧设备发起四步随机接入过程。作为示例分限定，该参考信号可以为下行路径损耗参考信号。
进一步的，终端侧设备还可以在随机接入过程中向网络侧设备发送第一信息。
情况一，终端侧设备在第二BWP中进行的随机接入过程为两步随机接入过程时，所述终端侧设备可以通过根据所述两步随机接入过程中的前导码以及所述前导码对应的PRACH时机确定的PUSCH资源发送所述第一信息。
具体的，根据前导码以及所述前导码对应的PRACH时机确定的PUSCH资源可以用于发送两步随机接入过程中的消息A的载荷数据，因此终端侧设备可以通过两步随机接入过程中的消息A发送第一信息，可以参考图3所示的两步随机接入过程。
情况二，终端侧设备在第二BWP中进行的随机接入过程为四步随机接入过程时，所述终端侧设备可以通过所述四步随机接入过程中的随机接入响应(random access response，RAR)消息分配的上行资源发送所述第一信息。
需要说明的是，四步随机接入过程中，RAR消息也可以称为消息2，RAR消息中可以 包含上行定时提前量、为消息3(msg 3)分配的上行授权(UpLink grant)等信息。RAR消息中的上行授权用于为消息3分配上行资源。终端侧设备可以通过RAR消息中上行授权分配的上行资源发送消息3，因此终端侧设备可以通过四步随机接入过程中的消息3发送第一信息。
第二种可能的实现方式，终端侧设备切换的第二BWP中可以包括调度请求(scheduling request，SR)资源，终端侧设备可以在第二BWP中使用第二BWP中包括的调度请求资源进行调度资源请求过程。
进一步的，在调度资源请求过程中，终端侧设备可以发送SR请求上行资源，并通过SR请求到的上行资源发送第一信息。
需要说明的是，终端侧设备将通过第二小区发送的第一信息，重新通过四步随机过程中的msg 3或者两步随机过程中的msg A或者SR请求到的上行资源发送时，一种可能的实现方式，终端侧设备将第二小区上发送的第一信息里面包含的服务小区的状态保存，并重新生成第一信息。
实现方式二：
步骤一：终端侧设备确定在第一小区的第一BWP中发生连续上行LBT失败。
步骤二：终端侧设备可以多次通过第二小区中的上行资源发送第一信息。
其中，终端侧设备每次在第二小区中发送第一信息之前，可以确定第一信息的发送次数。举例来说，终端侧设备可以维护一个计数器，每次在第二小区中发送第一信息，就将该计数器的计数值加1；终端侧设备每次在第二小区中发送第一信息之前，先确定该计数器的值是否到达N。
如果终端侧设备确定第一信息的发送次数小于N，终端侧设备则确定通过所述第二小区中的上行资源发送所述第一信息。
终端侧设备确定所述第一信息的发送次数不小于N时，所述终端侧设备确定不通过所述第二小区中的上行资源发送所述第一信息，所述终端侧设备可以主动进行BWP切换，例如切换到第一小区的第二BWP。
其中，N是终端侧设备通过第二小区中的上行资源发送第一信息的最大次数，可以为网络侧设备通过RRC信令配置的，也可以为终端侧设备自主确定的，也可以为通信协议中约定的，还可以通过其他方式确定，本申请实施例并不限定。
步骤三：终端侧设备可以在以下任一种情况下，进行BWP切换。
需要说明的是，步骤二和步骤三的顺序并不限定，如果终端侧设备在步骤二之前接收到第二信息，也可以先执行BWP切换。
情况1：第一信息的发送次数不小于N时，终端侧设备可以主动切换到第一小区的第二BWP。
情况2：第一信息的发送次数小于N时，终端侧设备如果接收到来自网络侧设备的第二信息，则可以切换到所述第二信息指示的第三BWP中。其中第二信息用于指示终端侧设备切换到的第三BWP。
在该情况下，终端侧设备还可以将第一信息的发送次数重置为0。
需要说明的是，终端侧设备在确定所述第一信息的发送次数小于N时，在没有接收到网络侧设备的第二信息时，终端侧设备可以不主动进行BWP的切换。在接收到网络侧设备的第二信息时，可以根据第二信息切换到第二信息指示的第三BWP中。
步骤四：终端侧设备完成BWP切换，实现连续上行LBT失败的恢复。
下面以终端侧设备切换到第二BWP为例进行描述。第二BWP中可以包括进行随机接入过程的资源以及SR资源中的至少一项，具体可以参考前面的描述，在此不再赘述。
终端侧设备切换到第二BWP中时，可以通过随机接入过程或者SR过程实现连续上行LBT失败的恢复。
进一步的，终端侧设备还可以在随机接入过程或者调度资源请求过程中向网络侧设备发送第一信息。
当随机接入过程为两步随机接入过程时，终端侧设备可以通过根据所述两步随机接入过程中的前导码以及所述前导码对应的PRACH时机确定的PUSCH资源发送所述第一信息，具体可以参考前面的描述，在此不再赘述。
当随机接入过程为四步随机接入过程时，终端侧设备可以通过所述四步随机接入过程中的RAR消息分配的上行资源发送所述第一信息，具体可以参考前面的描述，在此不再赘述。
当终端侧设备进行SR流程时，终端侧设备可以通过SR请求到的上行资源发送第一信息，具体可以参考前面的描述，在此不再赘述。
实现方式三：
步骤一：终端侧设备确定在第一小区的第一BWP中发生连续上行LBT失败。
步骤二：终端侧设备在第一小区主动进行BWP切换，切换到第一小区的第二BWP。
第二BWP中可以包括进行随机接入过程的资源以及SR资源中的至少一项，具体可以参考前面的描述，在此不再赘述。
步骤三：终端侧设备在第二BWP中，可以通过两步随机接入过程或者四步随机接入过程或者SR过程实现连续上行LBT失败的恢复。
步骤四：终端侧设备确定第二小区中的上行资源的起始时刻，位于两步随机接入过程中的msg A的荷载数据的发送时刻之前，或者位于四步随机接入过程中RAR消息指示的上行资源的起始时刻之前，或者位于SR请求的上行资源的发送时刻之前时，在第二小区中的上行资源发送第一信息。
具体的，第一种场景中，两步随机接入过程中的msg A的荷载数据通过根据所述两步随机接入过程中的前导码以及所述前导码对应的PRACH时机确定的PUSCH资源发送。如果终端侧设备使用第二BWP中的进行随机接入过程的资源在所述第二BWP中发起两步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于根据所述两步随机接入过程中的前导码以及所述前导码对应的PRACH时机确定的PUSCH资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息。
第二种场景中，如果终端侧设备使用第二BWP中的进行随机接入过程的资源在所述第二BWP中发起四步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述四步随机接入过程中的RAR消息分配的上行资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息。
第三种场景中，如果终端侧设备使用第二BWP中的SR资源在所述第二BWP中发起SR流程，当所述第二小区中的上行资源在时域上的起始时刻位于通过所述SR流程请求到的上行资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息。
需要说明的是，终端侧设备确定第二小区中的上行资源的起始时刻，位于两步随机接入过程中的msg A的荷载数据的发送时刻之后，或者位于四步随机接入过程中RAR消息指示的上行资源的起始时刻之后，或者位于SR请求的上行资源的发送时刻之后时，终端侧设备可以不在第二小区中的上行资源发送第一信息。
进一步的，终端侧设备在第二BWP中，可以通过随机接入过程或者SR过程完成连续上行LBT失败的恢复。假如上述三种场景任意一个满足，终端侧设备在第二小区中的上行资源发送第一信息之后，如果终端侧设备在第一小区的第二BWP正在进行两步随机接入过程或者四步随机接入过程，终端侧设备还可以执行下操作任一项：
1，继续完成在第二BWP上发起的两步随机接入过程或者四步随机接入过程；
2，终止正在进行的两步随机接入过程或者四步随机接入过程，重新切换到第一BWP上。
进一步的，终端侧设备通过随机接入过程或者SR过程进行实现上行LBT失败的恢复时，还可以通过随机接入过程或者SR过程发送第一信息。
举例来说，当随机接入过程为两步随机接入过程时，终端侧设备可以通过根据所述两步随机接入过程中的前导码以及所述前导码对应的PRACH时机确定的PUSCH资源发送所述第一信息，具体可以参考前面的描述，在此不再赘述。
当随机接入过程为四步随机接入过程时，终端侧设备可以通过所述四步随机接入过程中的RAR消息分配的上行资源发送所述第一信息，具体可以参考前面的描述，在此不再赘述。
当终端侧设备发起SR流程时，终端侧设备可以通过SR请求到的上行资源发送第一信息，具体可以参考前面的描述，在此不再赘述。
本申请实施例还提供一种方法，终端侧设备确定在第一小区的第一BWP中发生连续上行LBT失败时，可以只通过第一小区发送第一信息，具体可以参考图6所示的流程。
图6所示的方法流程中，第一小区和第二小区都可以为终端侧设备提供服务，且所述第一小区为主小区或者主辅小区，所述第二小区为辅小区。具体参见图6，该方法包括：
步骤601：终端侧设备确定在第一小区的第一BWP中发生连续上行LBT失败。
步骤602：终端侧设备切换到第一小区的第二BWP，并仅在所述第一小区和第二小区中的所述第一小区的第二BWP中发送第一信息。
其中，所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败。
其中，第二小区为没有发生连续上行LBT失败的小区。需要说明的是，第二小区为没有发生连续上行LBT失败的小区，可以是指终端侧设备发送第一信息时，终端侧设备在第二小区中没有发生连续上行LBT失败，也可以是指终端侧设备确定用来发送第一信息的上行资源时，终端侧设备在第二小区中没有发生连续上行LBT失败。
图6所示的流程中，所述第二BWP中可以包括进行随机接入过程的资源以及SR资源中的至少一项。所述第二BWP中可以包括进行随机接入过程的资源。进行随机接入过程的资源可以包括两步随机接入过程的资源和四步随机接入过程的资源中的至少一项。终端侧设备可以在第二BWP中使用第二BWP中包括的随机接入过程的资源进行随机接入过程，并通过随机接入过程发送第一信息，具体可以参考图4所示的流程中的描述，在此不再赘述。
所述第二BWP中还可以包括SR资源，终端侧设备可以通过第二BWP中的SR资源发起SR流程，从而可以通过SR流程请求到的上行资源发送第一信息，具体过程不再赘述。
进一步的，终端侧设备在第一小区的第二BWP中发送第一信息之前，还可以判断第二小区中是否有可用的上行资源。
其中，第二小区中可用上行资源，可以是指第二小区上用来做新传的上行资源，可以包括但不限于以下一项或多项：配置授权资源；通过终端侧设备的C-RNTI加扰的PDCCH调度的资源。
上述资源的具体内容，可以参考前面步骤402中的描述，在此不再赘述。
当第二小区中有可用的上行资源时，终端侧设备也不通过第二小区上的上行资源发送第一信息，一种可能的实现方式，终端侧设备判断第二小区中可用的上行资源的起始时刻，位于两步随机接入过程中的msg A的荷载数据的发送时刻之前，或者位于四步随机接入过程中RAR消息指示的上行资源的起始时刻之前，或者位于SR请求的上行资源的发送时刻之前时，也不用第二小区的上行资源。
或者，终端侧设备在第一小区的第二BWP中发送第一信息之前，也可以不判断第二小区中是否有可用的上行资源，即不论第二小区中是否有可用的上行资源，终端侧设备均在第一小区的第二BWP中发送第一信息。
本申请实施例中，当终端侧设备确定在第三小区的第四BWP中发生连续上行LBT失败，终端侧设备还没有生成包括用于指示第三小区发生连续上行LBT失败的指示信息的MAC CE时，如果终端侧设备确定切换BWP，终端侧设备该如何处理，目前还没有明确的解决方案。为此本申请实施例还提供一种方法，用于解决上述问题。
如图7所示，为本申请实施例提供的一种通信方法流程示意图。
步骤701：终端侧设备确定在第三小区的第四BWP中发生连续上行LBT失败。
终端侧设备具体如何确定发生连续上行LBT失败，可以参考前面的描述，在此不再赘述。
步骤702：终端侧设备在生成第三信息之前，若确定切换到所述第三小区的第五BWP，则执行第一操作。
其中，所述第三信息用于指示所述终端侧设备在所述第三小区中没有发生连续上行LBT失败。
举例来说，结合图7，如图8所示，终端侧设备在第一时刻确定在第三小区的第四BWP中发生连续上行LBT失败。终端侧设备在第二时刻确定切换到第三小区的第五BWP，由于第三小区和第五小区均发生连续上行LBT失败，终端侧设备可以通过第四小区发送携带第三信息的数据包。参考图8，终端侧设备在第三时刻生成第一数据包。其中第一数据包是新传数据包，且通过逻辑信道优先级(Logical Channel Prioritization，LCP)过程可以将第三信息包含进去。
需要说明的是，图8中，在第四时刻，如果终端侧设备在第五小区中发生连续上行LBT失败，也可以通过第一数据包中携带的第三信息上报给网络侧设备，所述第三信息用于指示所述终端侧设备在所述第五小区中发生连续上行LBT失败。举例来说，第三信息为MAC CE时，具体操作可以是将第三信息中第五小区所对应的小区标识域中的比特位的取值置为第一值，例如置为1。
可选地，第一数据包可以是一个MAC协议数据单元(protocol data unit，PDU)。第 三信息可以为MAC CE，MAC CE的具体结构可以参考图5所示。
可选的，用于指示发生连续上行LBT失败的MAC CE，也可以称为LBT失败MAC CE。
可选地，如果第三小区是辅小区，终端侧设备接收到来自网络侧设备的DCI时，切换到所述DCI指示的第五BWP中。其中所述DCI用于指示所述终端侧设备切换到所述第五BWP。
可选地，如果第三小区是主小区或者主辅小区，终端侧设备可以接收到来自网络侧设备的DCI时，切换到所述DCI指示的第五BWP中。或者，终端侧设备也可以主动触发BWP切换，切换到所述第五BWP。需要说明的是，终端侧设备主动触发BWP切换时，触发BWP切换的触发条件可以为除了发生连续上行LBT失败之外的触发条件，举例来说，一种可能的触发条件是：为了发送不同类型的数据触发的BWP切换。当然此处只是示例，触发条件还可能存在其他情况，只要不是因为第三小区上发生了连续上行LBT失败触发的BWP切换即可。
结合前面的描述，本申请实施例中，第一操作可以为以下任一操作：
1、取消所述第三小区的连续上行LBT失败状态；
可选的，终端侧设备还可以发送包括第三信息的第一数据包。
第三信息为图5所示的MAC CE时，MAC CE可以包括多个小区标识域，例如图5中包括31个小区标识域：C1至C31。一个小区标识域对应的比特位的取值为第一值时，表示终端侧设备在这个小区标识域对应的小区中发生连续上行LBT失败；一个小区标识域对应的比特位的取值为第二值时，表示终端侧设备在这个小区标识域对应的小区中没有发生连续上行LBT失败。第一值和第二值的具体取值并不限定，例如第一值为1，第二值为0。
举例来说，结合前面的例子，第三信息为MAC CE时，可以将第三信息中与第三小区所对应的小区标识域中的比特位的取值置为第二值，例如置为0。
2、当所述终端侧设备在第一数据包组包时，确定如果除了第三小区，没有其他服务小区发生连续上行LBT失败，取消生成所述第三信息，即不在第一数据包中携带第三信息；
通过上面的操作，可以使得网络侧设备准确的确定第三小区是否发生连续上行LBT失败，从而可以避免误以为第三小区发生连续上行LBT失败而进行不必要的BWP切换。
3、保持所述第三小区的连续上行LBT失败状态；
可选的，终端侧设备不再发送第三信息，而是可以发送包括第四信息的第一数据包。
其中，所述第四信息用于指示所述终端侧设备在所述第三小区中发生连续上行LBT失败。
举例来说，结合前面的图5，第四信息为MAC CE时，可以将第四信息中与第三小区所对应的小区标识域中的比特位的取值置为第一值，例如置为1。
4、保持所述第三小区的连续上行LBT失败状态。
可选的，终端侧设备还可以发送包括第四信息的第一数据包。
其中，所述第四信息用于指示所述终端侧设备在所述第三小区中发生连续上行LBT失败，第四信息中还可以用于指示第四BWP。
举例来说，结合前面的一种可能的实现方式，第四信息可以如图9所示还可以包括至少一个BWP标识域，BWP标识域用于指示发生连续上行LBT失败的BWP的标识。例如，如果第一值为1，第二值为0。C1对应的比特位的取值为1时，BWP1指示的就是C1对 应的小区中发生连续上行LBT失败的BWP的标识。如果C1对应的比特位的取值为0，C2对应的比特位的取值为1时，BWP1指示的就是C2对应的小区中发生连续上行LBT失败的BWP的标识，其他情况可以以此类推，不再赘述。BWP1是第一个发生连续上行LBT失败的服务小区上发生连续上行LBT失败的BWP的标识，目前一个服务小区最多支持4个专用BWP，所以BWP标识域可以包括至少2比特，具体包括的比特数量并不做限定，后面扩展了专用BWP的个数，该方法同样适用，在此不再赘述。
结合上面的图9，可以将第四信息中与第三小区所对应的小区标识域中的比特位的取值置为第一值，例如置为1。同时，第四信息中还可以包括BWP标识域，BWP标识域用于携带第四BWP的标识。
通过上面的操作，可以使得网络侧设备准确的确定第三小区是否发生连续上行LBT失败，并可以进一步确定发生连续上行LBT失败的BWP。
本文中描述的各个实施例可以为独立的方案，也可以根据内在逻辑进行组合，这些方案都落入本申请的保护范围中。
可以理解的是，上述各个方法实施例中，由终端侧设备实现的方法和操作，也可以由可用于终端侧设备的部件(例如芯片或者电路)实现。
上述本申请提供的实施例中，分别从各个设备之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，终端侧设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
与上述构思相同，如图10所示，本申请实施例还提供一种装置1000用于实现上述方法中终端侧设备或网络设备的功能。例如，该装置可以为软件模块或者芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。该装置1000可以包括：处理单元1001和通信单元1002。
本申请实施例中，通信单元也可以称为收发单元，可以包括发送单元和/或接收单元，分别用于执行上文方法实施例中终端侧设备或网络设备发送和接收的步骤。
以下，结合图10至图11详细说明本申请实施例提供的通信装置。应理解，装置实施例的描述与方法实施例的描述相互对应，因此，未详细描述的内容可以参见上文方法实施例，为了简洁，这里不再赘述。
示例性地，当该装置1000实现图4所示的流程中终端侧设备的功能时：
处理单元1001，用于确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；
通信单元1002，用于通过第二小区中的上行资源向网络侧设备发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败；所述第二小区为没有发生连续上行LBT失败的小区。
在一种可能的实施方式中，所述处理单元1001还用于：
启动第一定时器，所述第一定时器的定时时长为第一时长；
当所述第一定时器超时时，所述通信单元若未接收到来自所述网络侧设备的响应所述第一信息的第二信息，则切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；所述第二信息为用于调度所述终端侧设备进行BWP切换的下行控制信息DCI；在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
在一种可能的实施方式中，所述通信单元具体用于：
在确定所述第一信息的发送次数小于N时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息，N为大于1的整数。
在一种可能的实施方式中，所述处理单元1001还用于：
确定所述第一信息的发送次数不小于N时，切换到所述第一小区的第二BWP，N为大于1的整数；所述第二BWP中包括进行随机接入过程的资源；
在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
在一种可能的实施方式中，所述随机接入过程为两步随机接入过程，所述通信单元，用于通过所述两步随机接入过程中的根据所述前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源发送所述第一信息；
或者，所述随机接入过程为四步随机接入过程，所述通信单元，用于通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
在一种可能的实施方式中，所述通信单元1002具体用于：
切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；
使用所述随机接入过程的资源在所述第二BWP中发起两步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述两步随机接入过程中根据前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息；
或者，使用所述随机接入过程的资源在所述第二BWP中发起四步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息。
在一种可能的实施方式中，所述第一小区为主小区或者主辅小区；所述第二小区为辅小区。
示例性地，当该装置1000实现图6所示的流程中终端侧设备的功能时：
处理单元1001，用于确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；其中，所述第一小区为主小区或者主辅小区，所述第二小区为辅小区；所述第二小区为没有发生连续上行LBT失败的小区且包括可用的上行资源；
通信单元1002，用于切换到所述第一小区的第二BWP，并在所述第一小区和第二小区中的所述第一小区的第二BWP中发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败。
在一种可能的实施方式中，所述第二BWP中包括进行随机接入过程的资源；
所述通信单元1002具体用于：
在所述第二BWP中使用所述随机接入过程的资源进行随机接入过程；
所述随机接入过程为两步随机接入过程，通过所述两步随机接入过程中的前导码对应 的物理上行共享信道PUSCH资源发送所述第一信息；
或者，所述随机接入过程为四步随机接入过程，通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
示例性地，当该装置1000实现图7所示的流程中终端侧设备的功能时：
处理单元1001，用于通过通信单元1002确定在第三小区的第四带宽部分BWP中发生连续上行先听后说LBT失败；
所述处理单元1001，用于在生成第三信息之前，若确定切换到所述第三小区的第五BWP，则取消所述第三小区的连续上行LBT失败状态；所述第三信息用于指示所述终端侧设备在所述第三小区中没有发生连续上行LBT失败。
在一种可能的实施方式中，所述处理单元1001具体用于：
接收来自网络侧设备的下行控制信息DCI，所述DCI用于指示所述终端侧设备切换到所述第五BWP。
如图11所示为本申请实施例提供的装置1100，图11所示的装置可以为图10所示的装置的一种硬件电路的实现方式。该通信装置可用于执行上述方法实施例中终端侧设备的功能。为了便于说明，图11仅示出了该通信装置的主要部件。
图11所示的装置1100包括至少一个处理器1120。
装置1100还可以包括至少一个存储器1130，用于存储程序指令和/或数据。存储器1130和处理器1120耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器1120可能和存储器1130协同操作。处理器1120可能执行存储器1130中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
应注意，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理电路(digital signal processor，DSP)、专用集成芯片(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
装置1100还可以包括通信接口1110，用于通过传输介质和其它设备进行通信，从而用于装置1100中的装置可以和其它设备进行通信。在本申请实施例中，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口。在本申请实施例中，通信接口为收发器时，收发器可以包括独立的接收器、独立的发射器；也可以集成收发功能的收发器、或者是接口电路。
装置1100还可以包括通信线路1140。其中，通信接口1110、处理器1120以及存储器1130可以通过通信线路1140相互连接；通信线路1140可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。所述通信线路1140可以分为地址总线、数据总线、控制总线等。为便于表示，图11中仅用一条粗线表示，但并不表示仅有一根总线或一种类型 的总线。
示例性地，当该装置1100实现图4所示的流程中终端侧设备的功能时：
处理器1120，用于确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；
通信接口1110，用于通过第二小区中的上行资源向网络侧设备发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败；所述第二小区为没有发生连续上行LBT失败的小区。
在一种可能的实施方式中，所述处理器1120还用于：
启动第一定时器，所述第一定时器的定时时长为第一时长；
当所述第一定时器超时时，所述通信单元若未接收到来自所述网络侧设备的响应所述第一信息的第二信息，则切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；所述第二信息为用于调度所述终端侧设备进行BWP切换的下行控制信息DCI；
在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
在一种可能的实施方式中，所述通信单元具体用于：
在确定所述第一信息的发送次数小于N时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息，N为大于1的整数。
在一种可能的实施方式中，所述处理器1120还用于：
确定所述第一信息的发送次数不小于N时，切换到所述第一小区的第二BWP，N为大于1的整数；所述第二BWP中包括进行随机接入过程的资源；
在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
在一种可能的实施方式中，所述随机接入过程为两步随机接入过程，所述通信单元，用于通过所述两步随机接入过程中的根据所述前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源发送所述第一信息；
或者，所述随机接入过程为四步随机接入过程，所述通信单元，用于通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
在一种可能的实施方式中，所述通信接口1110具体用于：
切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；
使用所述随机接入过程的资源在所述第二BWP中发起两步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述两步随机接入过程中根据前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息；
或者，使用所述随机接入过程的资源在所述第二BWP中发起四步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息。
在一种可能的实施方式中，所述第一小区为主小区或者主辅小区；所述第二小区为辅小区。
示例性地，当该装置1100实现图6所示的流程中终端侧设备的功能时：
处理器1120，用于确定在第一小区的第一带宽部分BWP中发生连续上行先听后说 LBT失败；其中，所述第一小区为主小区或者主辅小区，所述第二小区为辅小区；所述第二小区为没有发生连续上行LBT失败的小区且包括可用的上行资源；
通信接口1110，用于切换到所述第一小区的第二BWP，并在所述第一小区和第二小区中的所述第一小区的第二BWP中发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败。
在一种可能的实施方式中，所述第二BWP中包括进行随机接入过程的资源；
所述通信接口1110具体用于：
在所述第二BWP中使用所述随机接入过程的资源进行随机接入过程；
所述随机接入过程为两步随机接入过程，通过所述两步随机接入过程中的前导码对应的物理上行共享信道PUSCH资源发送所述第一信息；
或者，所述随机接入过程为四步随机接入过程，通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
示例性地，当该装置1100实现图7所示的流程中终端侧设备的功能时：
处理器1120，用于通过通信接口1110确定在第三小区的第四带宽部分BWP中发生连续上行先听后说LBT失败；
所述处理器1120，用于在生成第三信息之前，若确定切换到所述第三小区的第五BWP，则取消所述第三小区的连续上行LBT失败状态；所述第三信息用于指示所述终端侧设备在所述第三小区中没有发生连续上行LBT失败。
在一种可能的实施方式中，所述处理器1120具体用于：
接收来自网络侧设备的下行控制信息DCI，所述DCI用于指示所述终端侧设备切换到所述第五BWP。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (25)

  1. 一种通信方法，其特征在于，包括：
    终端侧设备确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；
    所述终端侧设备通过第二小区中的上行资源向网络侧设备发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败；所述第二小区为没有发生连续上行LBT失败的小区。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端侧设备启动第一定时器，所述第一定时器的定时时长为第一时长；
    当所述第一定时器超时时，所述终端侧设备若未接收到来自所述网络侧设备的响应所述第一信息的第二信息，则切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；所述第二信息为用于调度所述终端侧设备进行BWP切换的下行控制信息DCI；
    所述终端侧设备在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
  3. 根据权利要求1所述的方法，其特征在于，所述终端侧设备通过第二小区中的上行资源发送所述第一信息，包括：
    所述终端侧设备在确定所述第一信息的发送次数小于N时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息，N为大于1的整数。
  4. 根据权利要求1或3所述的方法，其特征在于，所述方法还包括：
    所述终端侧设备确定所述第一信息的发送次数不小于N时，所述终端侧设备切换到所述第一小区的第二BWP，N为大于1的整数；所述第二BWP中包括进行随机接入过程的资源；
    所述终端侧设备在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
  5. 根据权利要求2或4所述的方法，其特征在于，所述方法还包括：
    所述随机接入过程为两步随机接入过程，所述终端侧设备通过所述两步随机接入过程中的根据所述前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源发送所述第一信息；
    或者，所述随机接入过程为四步随机接入过程，所述终端侧设备通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
  6. 根据权利要求1所述的方法，其特征在于，所述终端侧设备通过第二小区中的上行资源发送所述第一信息，包括：
    所述终端侧设备切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；
    所述终端侧设备使用所述随机接入过程的资源在所述第二BWP中发起两步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述两步随机接入过程中根据前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息；
    或者，所述终端侧设备使用所述随机接入过程的资源在所述第二BWP中发起四步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息。
  7. 根据权利要求1至6任一所述的方法，其特征在于，所述第一小区为主小区或者主辅小区；所述第二小区为辅小区。
  8. 一种通信方法，其特征在于，包括：
    终端侧设备确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；其中，所述第一小区为主小区或者主辅小区，所述第二小区为辅小区；所述第二小区为没有发生连续上行LBT失败的小区且包括可用的上行资源；
    所述终端侧设备切换到所述第一小区的第二BWP，并在所述第一小区和第二小区中的所述第一小区的第二BWP中发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败。
  9. 根据权利要求8所述的方法，其特征在于，所述第二BWP中包括进行随机接入过程的资源；
    所述终端侧设备在所述第一小区和第二小区中的所述第一小区的第二BWP中发送第一信息，包括：
    所述终端侧设备在所述第二BWP中使用所述随机接入过程的资源进行随机接入过程；
    所述随机接入过程为两步随机接入过程，所述终端侧设备通过所述两步随机接入过程中的前导码对应的物理上行共享信道PUSCH资源发送所述第一信息；
    或者，所述随机接入过程为四步随机接入过程，所述终端侧设备通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
  10. 一种通信方法，其特征在于，包括：
    终端侧设备确定在第三小区的第四带宽部分BWP中发生连续上行先听后说LBT失败；
    所述终端侧设备在生成第三信息之前，若确定切换到所述第三小区的第五BWP，则取消所述第三小区的连续上行LBT失败状态；所述第三信息用于指示所述终端侧设备在所述第三小区中没有发生连续上行LBT失败。
  11. 根据权利要求10所述的方法，其特征在于，所述确定切换到所述第三小区的第五BWP，包括：
    所述终端侧设备接收来自网络侧设备的下行控制信息DCI，所述DCI用于指示所述终端侧设备切换到所述第五BWP。
  12. 一种通信装置，其特征在于，包括：
    处理单元，用于确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；
    通信单元，用于通过第二小区中的上行资源向网络侧设备发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败；所述第二小区为没有发生连续上行LBT失败的小区。
  13. 根据权利要求12所述的装置，其特征在于，所述处理单元还用于：
    启动第一定时器，所述第一定时器的定时时长为第一时长；
    当所述第一定时器超时时，所述通信单元若未接收到来自所述网络侧设备的响应所述第一信息的第二信息，则切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；所述第二信息为用于调度所述终端侧设备进行BWP切换的下行控制信息DCI；
    在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
  14. 根据权利要求12所述的装置，其特征在于，所述通信单元具体用于：
    在确定所述第一信息的发送次数小于N时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息，N为大于1的整数。
  15. 根据权利要求12或14所述的装置，其特征在于，所述处理单元还用于：
    确定所述第一信息的发送次数不小于N时，切换到所述第一小区的第二BWP，N为大于1的整数；所述第二BWP中包括进行随机接入过程的资源；
    在所述第二BWP中使用所述进行随机接入过程的资源进行随机接入过程。
  16. 根据权利要求13或15所述的装置，其特征在于，所述随机接入过程为两步随机接入过程，所述通信单元，用于通过所述两步随机接入过程中的根据所述前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源发送所述第一信息；
    或者，所述随机接入过程为四步随机接入过程，所述通信单元，用于通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
  17. 根据权利要求12所述的装置，其特征在于，所述通信单元具体用于：
    切换到所述第一小区的第二BWP；所述第二BWP中包括进行随机接入过程的资源；
    使用所述随机接入过程的资源在所述第二BWP中发起两步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述两步随机接入过程中根据前导码以及所述前导码对应的物理随机接入信道PRACH时机确定的物理上行共享信道PUSCH资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息；
    或者，使用所述随机接入过程的资源在所述第二BWP中发起四步随机接入过程，当所述第二小区中的上行资源在时域上的起始时刻位于所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源的起始时刻之前时，所述终端侧设备通过所述第二小区中的上行资源发送所述第一信息。
  18. 根据权利要求12至17任一所述的装置，其特征在于，所述第一小区为主小区或者主辅小区；所述第二小区为辅小区。
  19. 一种通信装置，其特征在于，包括：
    处理单元，用于确定在第一小区的第一带宽部分BWP中发生连续上行先听后说LBT失败；其中，所述第一小区为主小区或者主辅小区，所述第二小区为辅小区；所述第二小区为没有发生连续上行LBT失败的小区且包括可用的上行资源；
    通信单元，用于切换到所述第一小区的第二BWP，并在所述第一小区和第二小区中的所述第一小区的第二BWP中发送第一信息；所述第一信息用于指示所述终端侧设备在所述第一小区中发生连续上行LBT失败。
  20. 根据权利要求19所述的装置，其特征在于，所述第二BWP中包括进行随机接入过程的资源；
    所述通信单元具体用于：
    在所述第二BWP中使用所述随机接入过程的资源进行随机接入过程；
    所述随机接入过程为两步随机接入过程，通过所述两步随机接入过程中的前导码对应的物理上行共享信道PUSCH资源发送所述第一信息；
    或者，所述随机接入过程为四步随机接入过程，通过所述四步随机接入过程中的随机接入响应RAR消息分配的上行资源发送所述第一信息。
  21. 一种通信装置，其特征在于，包括：
    处理单元，用于通过通信单元确定在第三小区的第四带宽部分BWP中发生连续上行先听后说LBT失败；
    所述处理单元，用于在生成第三信息之前，若确定切换到所述第三小区的第五BWP，则取消所述第三小区的连续上行LBT失败状态；所述第三信息用于指示所述终端侧设备在所述第三小区中没有发生连续上行LBT失败。
  22. 根据权利要求21所述的装置，其特征在于，所述处理单元具体用于：
    接收来自网络侧设备的下行控制信息DCI，所述DCI用于指示所述终端侧设备切换到所述第五BWP。
  23. 一种通信装置，其特征在于，包括：存储器与处理器，所述存储器用于存储指令，所述处理器用于执行所述存储器存储的指令，并且对所述存储器中存储的指令的执行使得，所述处理器用于执行如权利要求1至7或8至9或10至11中任一项所述的方法。
  24. 一种计算机可读存储介质，其特征在于，包括计算机可读指令，当通信装置读取并执行所述计算机可读指令时，使得所述通信装置执行如权利要求1至7或8至9或10至11中任一项所述的方法。
  25. 一种计算机程序产品，其特征在于，包括计算机可读指令，当通信装置读取并执行所述计算机可读指令，使得所述通信装置执行如权利要求1至7或8至9或10至11中任一项所述的方法。
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