WO2021159402A1 - Lbt失败的处理方法及装置 - Google Patents

Lbt失败的处理方法及装置 Download PDF

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Publication number
WO2021159402A1
WO2021159402A1 PCT/CN2020/075120 CN2020075120W WO2021159402A1 WO 2021159402 A1 WO2021159402 A1 WO 2021159402A1 CN 2020075120 W CN2020075120 W CN 2020075120W WO 2021159402 A1 WO2021159402 A1 WO 2021159402A1
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Prior art keywords
lbt failure
lbt
serving cell
cancel
failure
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PCT/CN2020/075120
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English (en)
French (fr)
Inventor
贾美艺
张磊
王昕�
Original Assignee
富士通株式会社
贾美艺
张磊
王昕�
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Priority to PCT/CN2020/075120 priority Critical patent/WO2021159402A1/zh
Publication of WO2021159402A1 publication Critical patent/WO2021159402A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the invention relates to the field of communications.
  • LBT Listen Before Talk
  • DMTC Discovery RS Measurement Timing Configuration
  • New Radio New Radio
  • New Radio New Radio
  • the RRC (Radio Resource Control, Radio Resource Control) layer can configure the MAC entity with a recovery process from continuous LBT failure.
  • the detection of continuous LBT failure is performed on each upstream BWP (Bandwidth Part), and the MAC entity performs the detection by calculating the number of received LBT failure indications from all upstream transmissions from the lower layer. When the number of received LBT failure indications for all uplink transmissions from the lower layer exceeds the threshold, a continuous LBT failure is triggered.
  • the terminal device can switch to another BWP and initiate random access.
  • the terminal device triggers the MAC CE (Control Element) to indicate to the network the occurrence of the continuous LBT failure, and the MAC CE is sent on the BWP that the terminal device switches to during the random access process.
  • a MAC CE When a continuous LBT failure is detected on a secondary cell (SCell), a MAC CE is used to report the failure to the network device to which the SCell belongs, and the MAC CE is sent on another cell different from the SCell where the continuous LBT failure occurs. In addition, the MAC CE can report multiple failed cells.
  • the terminal device can trigger a scheduling request (Scheduling Request, SR).
  • SR scheduling request
  • the terminal device successfully sends a MAC CE indicating that the LBT of a serving cell fails, it cancels the continuous LBT failure on the serving cell or the BWP.
  • the MAC entity will: If the continuous LBT failure is triggered in the special cell (SpCell), namely the primary cell (PCell) or the primary and secondary cell (PSCell), and it is not cancelled, and if the There are uplink shared channel (UL-SCH) resources that can be used for new transmissions and logical channel prioritization (LCP) enables these resources to accommodate the LBT failure MAC CE plus its subheader, indicating multiplexing and assembly ( The process of Multiplexing and Assembly) generates LBT failure MAC CE.
  • SpCell special cell
  • PCell primary cell
  • PSCell primary and secondary cell
  • UL-SCH uplink shared channel
  • LCP logical channel prioritization
  • LBT failure MAC CE plus its subheader indicates that the multiplexing and assembly (Multiplexing and Assembly) process generates the LBT failure MAC CE; otherwise, it triggers the SR of the LBT failure MAC CE.
  • MAC PDU Protocol Data Unit, protocol data unit
  • the MAC entity will cancel the service that indicates the continuous LBT failure in the sent LBT failure MAC CE
  • the continuous LBT triggered in the cell fails.
  • the terminal device may indicate to the network device many times that the LBT failure occurred on a certain serving cell, so the network device may misunderstand the busy condition of the NR-U (NR-Unlicensed) channel, which may cause unnecessary BWP handover and failure on the PCell. Necessary SCell reconfiguration and low efficiency of NR-U channel usage.
  • NR-U NR-Unlicensed
  • embodiments of the present invention provide a method and device for processing LBT failure.
  • a device for processing LBT failure the device is applied to a terminal device side, and the device includes: a first canceling unit, which is used to, when instructed to generate LBT failure information, Cancel the LBT failure in the serving cell where the LBT failure information indicates the LBT failure.
  • a device for processing LBT failure is provided.
  • the device is applied to the terminal equipment side.
  • the device includes: a fifth instructing unit for a MAC entity to instruct a higher layer to cancel a serving cell The LBT failed.
  • a device for processing LBT failure is applied to a network device side.
  • the device includes: a first receiving unit configured to receive LBT failure information from a terminal device, The LBT failure information indicates that the LBT triggered in the serving cell fails.
  • a terminal device includes the apparatus according to the first aspect or the second aspect of the embodiments of the present invention.
  • a network device is provided, and the network device includes the apparatus according to the third aspect of the embodiments of the present invention.
  • a communication system including the terminal device according to the fourth aspect of the embodiments of the present invention and/or the fifth aspect of the embodiments of the present invention Network equipment.
  • a method for processing LBT failure the method is applied to the terminal device side, and the method includes: when instructing to generate LBT failure information, cancel the LBT failure information indication The LBT failed in the serving cell where the LBT failed.
  • a method for processing LBT failure is applied to the terminal device side, and the method includes: a MAC entity instructs a higher layer to cancel the LBT failure in a serving cell
  • a method for processing LBT failure is applied to a network device side.
  • the method includes: receiving LBT failure information from a terminal device, the LBT failure information indicating a serving cell LBT triggered in failed.
  • a computer-readable program wherein when the program is executed in a processing device or terminal device that fails the LBT, the program causes the LBT to fail
  • the processing apparatus or terminal device executes the LBT failure processing method described in the seventh or eighth aspect of the embodiment of the present invention.
  • a storage medium storing a computer readable program, wherein the computer readable program causes the processing apparatus or terminal device of the LBT failure to execute the seventh aspect of the embodiments of the present invention Or the LBT failure processing method described in the eighth aspect.
  • a computer-readable program wherein when the program is executed in a processing device or a network device that fails LBT, the program causes the processing device or the processing device to fail the LBT
  • the network device executes the LBT failure processing method described in the ninth aspect of the embodiment of the present invention.
  • a storage medium storing a computer-readable program, wherein the computer-readable program causes the processing device or network device that fails the LBT to execute the method described in the ninth aspect of the embodiment of the present invention.
  • the beneficial effect of the embodiment of the present invention is that when it is instructed to generate LBT failure information, the LBT failure in the serving cell where the LBT failure information indicates the LBT failure is cancelled, so that the terminal device will not indicate to the network device a certain number of times. LBT failure occurs on the serving cell, thereby avoiding unnecessary BWP handover and/or secondary cell reconfiguration initiated by the network side, thereby ensuring effective utilization of the NR-U channel.
  • Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a method for processing LBT failure in Embodiment 1 of the present invention.
  • FIG. 3 is another schematic diagram of the method for processing LBT failure in Embodiment 1 of the present invention.
  • FIG. 5 is another schematic diagram of the method for processing LBT failure according to Embodiment 1 of the present invention.
  • FIG. 6 is another schematic diagram of the method for processing LBT failure in Embodiment 1 of the present invention.
  • FIG. 7 is another schematic diagram of the method for processing LBT failure in Embodiment 1 of the present invention.
  • FIG. 8 is a schematic diagram of a method for processing LBT failure in Embodiment 2 of the present invention.
  • FIG. 9 is a schematic diagram of a processing method for LBT failure in Embodiment 3 of the present invention.
  • FIG. 10 is a schematic diagram of a method for processing LBT failure according to Embodiment 4 of the present invention.
  • FIG. 11 is a schematic diagram of an LBT failure processing device according to Embodiment 5 of the present invention.
  • FIG. 12 is another schematic diagram of the LBT failure processing apparatus according to Embodiment 5 of the present invention.
  • FIG. 13 is another schematic diagram of the LBT failure processing device of Embodiment 5 of the present invention.
  • FIG. 14 is another schematic diagram of the processing device for LBT failure according to Embodiment 5 of the present invention.
  • FIG. 16 is another schematic diagram of the method for processing LBT failure according to Embodiment 5 of the present invention.
  • FIG. 17 is a schematic diagram of a processing device for LBT failure according to Embodiment 6 of the present invention.
  • FIG. 18 is a schematic diagram of a processing device for LBT failure according to Embodiment 7 of the present invention.
  • FIG. 19 is a schematic block diagram of the system configuration of a terminal device according to Embodiment 8 of the present invention.
  • FIG. 20 is a schematic block diagram of the system configuration of a network device according to Embodiment 9 of the present invention.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of numelations, but they do not indicate the spatial arrangement or chronological order of these elements. These elements should not be referred to by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having” and the like refer to the existence of the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term "communication network” or “wireless communication network” can refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), and Enhanced Long Term Evolution (LTE-A, LTE-A). Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-A
  • LTE-A LTE-A
  • Advanced Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to any stage of communication protocol, for example, it can include but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G
  • 2.75G 3G
  • 4G 4G
  • 4.5G future 5G
  • New Radio NR, New Radio
  • Network device refers to, for example, a device in a communication system that connects a user equipment to a communication network and provides services for the user equipment.
  • Network equipment may include but not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may also include remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay), or low-power node (such as femto, pico, etc.).
  • NodeB Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low-power node such as femto, pico, etc.
  • base station can include some or all of their functions, and each base station can provide communication coverage for a specific geographic area.
  • the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "User Equipment” refers to, for example, a device that accesses a communication network through a network device and receives network services, and may also be referred to as "Terminal Equipment” (TE, Terminal Equipment).
  • the terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), terminal, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, etc.
  • terminal devices may include but are not limited to the following devices: cellular phones (Cellular Phone), personal digital assistants (PDAs, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, Cordless phones, smart phones, smart watches, digital cameras, etc.
  • cellular phones Cellular Phone
  • PDAs personal digital assistants
  • wireless modems wireless communication devices
  • handheld devices machine-type communication devices
  • laptop computers Cordless phones
  • smart phones smart watches, digital cameras, etc.
  • a terminal device may also be a machine or device that performs monitoring or measurement.
  • it may include, but is not limited to: Machine Type Communication (MTC) terminals, In-vehicle communication terminals, device to device (D2D, Device to Device) terminals, machine to machine (M2M, Machine to Machine) terminals, etc.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, which schematically illustrates a case where a terminal device and a network device are taken as an example.
  • the communication system 100 may include: a network device 101 and a terminal device 102.
  • Figure 1 only uses one terminal device as an example for illustration.
  • the network device 101 is, for example, a network device gNB of NR.
  • eMBB enhanced mobile broadband
  • mMTC large-scale machine type communication
  • URLLC Ultra-Reliable and Low- Latency Communication
  • the terminal device When the terminal device performs LBT, LBT failure may occur. According to the existing rules, the terminal device may indicate to the network device that the LBT failure occurred on a certain serving cell multiple times, so the network device may misunderstand the busy situation of the NR-U channel. As a result, unnecessary BWP switching and unnecessary SCell reconfiguration on the PCell are caused, and the use efficiency of the NR-U channel is low.
  • a terminal device is configured with four serving cells, that is, a primary cell PCell, a primary secondary cell PSCell, and two secondary cells SCell1 and SCell2, the following situations may occur:
  • Case 1 The continuous LBT failure is triggered on SCell1 first; after a period of time, the continuous LBT failure is triggered on the PCell.
  • the MAC entity After a period of time, when a continuous LBT failure is triggered on the PCell, the MAC entity performs BWP handover and initiates a random access process; if there are UL-SCH resources available for new transmission on the PCell and the logical channels are prioritized so that these resources can be accommodated
  • the LBT failure MAC CE plus its subheader, and the MAC PDU where the LBT failure MAC CE1 is located has not been sent, the MAC entity will instruct the multiplexing and assembly process to generate the LBT failure MAC CE2, where SCell1 corresponds to the serving cell index corresponding to the PCell
  • SCell1 corresponds to the serving cell index corresponding to the PCell
  • the bit of is set to 1, and the other bits are set to 0.
  • the network device may receive 2 MAC PDUs, including LBT failure MAC CE1 and LBT failure MAC CE2 respectively. Because of LBT failure MAC CE1 and LBT failure MAC CE2, the bits corresponding to SCell1 in CE2 are all set to 1. The network device may perform the reconfiguration of SCell1 twice and think that the channel on which it is located is busy.
  • the network device may receive two MAC PDUs, including LBT failure MAC CE1 and LBT failure MAC CE2, due to LBT failure MAC CE1 and LBT failure MAC CE2 corresponding to the PCell bits If both are set to 1, the network device may initiate a BWP handover on the PCell and think that the channel where the previous BWP is located is busy.
  • the above situation 3-1 and the above situation 3-2 may occur one after another, and the MAC PDU including the corresponding LBT failure MAC CE CE has not been sent, and the network device may receive one after another.
  • the above problems of case 1 and case 2 are both exist.
  • the LBT failure on the PSCell will trigger the terminal device to send the SCG indicating the LBT failure to the network device where the PCell is located. (Secondary Cell Group) failure information.
  • SCG Servicedary Cell Group
  • both the PCell and the two network devices where the PSCell is located will receive the LBT failure information and take different actions; for the PCell, the LBT on the PCell Failure will trigger the connection re-establishment process. In this case, even if the LBT failure indication is received from the terminal device, the network device cannot handle it.
  • the embodiment of the present invention provides a method for processing LBT failure, and the method is applied to the terminal device side.
  • FIG. 2 is a schematic diagram of a method for processing LBT failure in Embodiment 1 of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 When it is instructed to generate LBT failure information, cancel the LBT failure in the serving cell where the LBT failure information indicates the LBT failure.
  • the LBT failure information indicates the serving cell that triggered or occurred the LBT failure.
  • the serving cell may include at least one of a primary cell (PCell), a primary secondary cell (PSCell), and a secondary cell (SCell).
  • the LBT failure triggered or occurring in the serving cell may also be referred to as a persistent LBT failure.
  • the lower layer performs LBT failure detection on an upstream BWP, and indicates the upstream LBT failure to the upper layer (for example, the MAC layer); the upper layer uses a timer for timing, when the timer expires, resets the LBT failure counter, and Count through the LBT failure counter. When the count value reaches the maximum value, a continuous LBT failure is triggered.
  • the LBT failure information when the LBT failure information is generated, the LBT failure in the corresponding serving cell is cancelled.
  • the LBT failure information is the LBT failure MAC CE, or the PDU including the LBT failure MAC CE, or the sub-header indicates the PDU of the LBT failure on one or more serving cells.
  • the LBT failure MAC CE is composed of multiple bits, and each bit corresponds to the index of multiple serving cells. Among them, the bit corresponding to the index of the serving cell where the LBT fails is set to 1, and the other bits are set to 0.
  • the method may further include:
  • Step 202 When an LBT failure is triggered in the serving cell and the LBT failure is not cancelled, and a preset condition is met, instruct to generate LBT failure information.
  • instructing to generate LBT failure information may be instructing a multiplexing and assembly process (Multiplexing and Assembly) to generate the LBT failure information.
  • the LBT failure information when the LBT failure information is instructed to be generated, the LBT failure information may be generated during the multiplexing and assembly process.
  • the serving cell is a serving cell configured by the terminal device.
  • the serving cell may include a first serving cell and/or a second serving cell.
  • the first serving cell is a special cell (SpCell), that is, a primary cell ( PCell) and/or primary and secondary cell (PSCell), and the second serving cell is a secondary cell (SCell).
  • the preset condition is the first condition or the second condition.
  • step 202 when an LBT failure is triggered in the first serving cell and the LBT failure is not canceled, and the first condition is met, it is instructed to generate the first LBT failure information; and/or when in the second serving cell When the LBT failure is triggered and the LBT failure is not cancelled, and the second condition is met, it is instructed to generate the second LBT failure information and cancel the LBT failure in the second serving cell.
  • step 201 when the LBT failure is triggered in the first serving cell and the LBT failure is not canceled, and the first condition is met, the first LBT failure information is instructed to be generated, and the first serving cell is canceled. And/or, when the LBT failure is triggered in the second serving cell and the LBT failure is not cancelled, and the second condition is met, the second LBT failure information is instructed to be generated, and the second serving cell is cancelled The LBT failed.
  • the first condition is that there are UL-SCH resources available for new transmission in the first serving cell and logical channel prioritization (LCP) enables the resources to accommodate the first LBT failure information or the The first LBT failure information and its sub-headers
  • the second condition is that there are UL-SCH resources available for new transmission in a serving cell that does not trigger LBT failure, and logical channel prioritization (LCP) enables this resource Contains the second LBT failure information or the second LBT failure information and its subheaders.
  • LCP logical channel prioritization
  • the resource can accommodate the first LBT failure information and its subheader And/or the second LBT failure information and its sub-headers; when the first LBT failure information and/or the second LBT failure information is the PDU of the LBT failure MAC CE or the sub-header indicates the PDU of the LBT failure on one or more serving cells In the above first condition and second condition, what enables the resource to accommodate is the first LBT failure information and/or the second LBT failure information.
  • the LBT failure information is LBT failure MAC CE
  • the first condition is that there are UL-SCH resources available for new transmission in the first serving cell and logical channel prioritization (LCP) enables the resources to accommodate the LBT
  • LCP logical channel prioritization
  • the second condition is that there is a UL-SCH resource available for new transmission in a serving cell that does not trigger LBT failure, and logical channel prioritization (LCP) enables this resource to be accommodated
  • LCP logical channel prioritization
  • the method may further include:
  • Step 203 Send the LBT failure information to the network device.
  • the LBT failure information may be carried by MAC CE and/or higher layer messages.
  • the high-level message is an RRC message.
  • a terminal device is configured with three serving cells, that is, one first serving cell and two second serving cells, for example, the first serving cell is PCell or PSCell, and the second serving cells are SCell1 and SCell2.
  • FIG. 3 is another schematic diagram of the LBT failure processing method according to Embodiment 1 of the present invention, which is aimed at a situation where LBT failure is first triggered on a second serving cell, and a continuous LBT failure is triggered on the first serving cell after a period of time .
  • the method includes:
  • Step 301 When an LBT failure is triggered in the second serving cell and the LBT failure is not cancelled, and the second condition is met, instruct to generate a third LBT failure message and cancel the LBT failure in the second serving cell.
  • the method further includes:
  • Step 302 When an LBT failure is triggered in the first serving cell and the LBT failure is not cancelled, and the first condition is met, instruct to generate fourth LBT failure information and cancel the LBT failure in the first serving cell, the The fourth LBT failure information does not include information about the occurrence of LBT failure in the second serving cell.
  • the first serving cell is PCell
  • the second serving cell is SCell1.
  • the MAC entity When an LBT failure is triggered on SCell1, and there are UL-SCH resources available for new transmission on SCell2 or PCell, and LCP enables these resources to accommodate the LBT failure MAC CE plus its subheader, the MAC entity will indicate multiplexing and assembly
  • the process generates the LBT failure MAC CE1 (as the third LBT failure information), where the bit corresponding to the serving cell index corresponding to SCell1 is set to 1, and the other bits are set to 0.
  • the MAC entity After a period of time, when an LBT failure is triggered on the PCell, the MAC entity performs BWP handover and initiates a random access process; when there are UL-SCH resources available for new transmission on the PCell and logical channel prioritization (LCP) makes these resources
  • LCP logical channel prioritization
  • the MAC entity will instruct the multiplexing and assembly process to generate LBT failure MAC CE2 (as the fourth LBT failure message), where the LBT failure MAC in SCell1 has been cancelled, and the LBT failure MAC
  • the bit corresponding to PCell in CE2 is set to 1, and the other bits (including those corresponding to SCell1) are set to 0.
  • the network device when the LBT failure is triggered on SCell1 first, and the LBT failure is triggered on the PCell after a period of time, the network device only receives an indication for the LBT failure on SCell1 and PCell, so it can correctly understand the channel busyness based on the indication And take corresponding actions, for example, reconfigure the secondary cell and/or perform BWP handover.
  • FIG. 4 is another schematic diagram of the LBT failure processing method according to Embodiment 1 of the present invention, which is aimed at the situation where the LBT failure is triggered on the first serving cell first, and a continuous LBT failure is triggered on the second serving cell after a period of time .
  • the method includes:
  • Step 401 When an LBT failure is triggered in the first serving cell and the LBT failure is not cancelled, and the first condition is met, instruct to generate fifth LBT failure information, and cancel the LBT failure in the first serving cell.
  • the method further includes:
  • Step 402 When an LBT failure is triggered in the second serving cell and the LBT failure is not cancelled, and the second condition is met, instruct to generate a sixth LBT failure message and cancel the LBT failure in the second serving cell, the The sixth LBT failure information does not include information about the LBT failure of the first serving cell.
  • the first serving cell is PCell
  • the second serving cell is SCell1.
  • the MAC entity When the LBT triggered on the PCell fails, the MAC entity performs BWP handover and initiates a random access process; when the target BWP of the PCell has UL-SCH resources available for new transmission and LCP enables these resources to accommodate the LBT failure MAC CE plus When adding its subheader, the MAC entity will instruct the multiplexing and assembly process to generate LBT failure MAC CE1 (as the fifth LBT failure information), where the bit corresponding to PCell is set to 1, and the other bits are set to 0.
  • the MAC entity instructs to generate the LBT failure MAC CE1 as the fifth LBT failure information, cancel the continuous LBT failure in the serving cell where the LBT failure MAC CE1 indicates the LBT failure, that is, cancel the LBT failure in the PCell.
  • the MAC entity will instruct the multiplexing and assembly process to generate the LBT failure MAC CE2 (as the sixth LBT failure information), where the LBT failure in the PCell has been cancelled, and the bit corresponding to SCell1 in the LBT failure MAC CE2 is set to 1. Other bits (including those corresponding to PCell) are set to 0.
  • the network device receives only one indication for the LBT failure on the SCell1 and the PCell, so it can correctly understand the channel busyness based on the indication And take corresponding actions, for example, reconfigure the secondary cell and/or perform BWP handover.
  • FIG. 5 is another schematic diagram of the LBT failure processing method in Embodiment 1 of the present invention, which is aimed at the first serving cell and a second serving cell both triggering LBT failure, and LBT can be performed on the first serving cell In the case of a BWP handover that failed to recover.
  • the method includes:
  • Step 501 When the first condition is met, or the first condition is not met but the second condition is met, instruct to generate seventh LBT failure information, and cancel the LBT failure in the first serving cell and the second serving cell .
  • the first serving cell is PCell or PSCell
  • the second serving cell is SCell1.
  • LBT failure is triggered on SCell1 and PCell or PSCell, and BWP switching for LBT failure recovery can be performed on PCell or PSCell.
  • LCP logical channel prioritization
  • the MAC entity instructs to generate the LBT failure MAC CE1 as the seventh LBT failure information, cancel the LBT failure in the serving cell where the LBT failure MAC CE1 indicates the LBT failure, that is, cancel the LBT failure in SCell1 and PCell or PSCell .
  • the network device receives only one indication for LBT failure in SCell1 and PCell or PSCell, Therefore, it is possible to correctly understand the busyness of the channel based on the indication and take corresponding actions, such as reconfiguring the secondary cell and/or performing BWP handover.
  • FIG. 6 is another schematic diagram of the method for processing LBT failure according to Embodiment 1 of the present invention. As shown in FIG. 6, the method includes:
  • Step 601 when it is instructed to generate LBT failure information, cancel the LBT failure in the serving cell where the LBT failure information indicates the LBT failure;
  • Step 602 The MAC entity instructs the higher layer to cancel the LBT in the serving cell and fails;
  • the method further includes:
  • Step 603 When the serving cell that failed to cancel the LBT is the primary and secondary cell (PSCell), the higher layer stops sending the secondary cell group (SCG) failure information to the network device based on the indication of the failure to cancel the LBT in the serving cell; and /or,
  • SCG secondary cell group
  • Step 604 When the serving cell that failed to cancel the LBT is the primary cell (PCell), the upper layer stops the connection re-establishment process based on the indication of canceling the LBT failure in the serving cell.
  • PCell primary cell
  • the higher layer is, for example, the RRC layer.
  • FIG. 7 is another schematic diagram of the LBT failure processing method in Embodiment 1 of the present invention, which is aimed at the first serving cell and a second serving cell triggering LBT failure, and LBT cannot be performed on the first serving cell In the case of a BWP handover that failed to recover.
  • the method includes:
  • Step 701 The MAC entity indicates to the higher layer that the LBT in the first serving cell fails;
  • Step 702 When the first condition is not met but the second condition is met, instruct to generate eighth LBT failure information, and cancel the LBT failure in the first serving cell and the second serving cell;
  • Step 703 The MAC entity instructs the higher layer to cancel the LBT in the first serving cell and fails.
  • the method further includes:
  • Step 704 When the first serving cell is a primary and secondary cell (PSCell), the higher layer stops sending SCG failure information to the network device based on the indication of canceling the LBT failure in the first serving cell; and/or,
  • Step 705 When the first serving cell is the primary cell (PCell), the higher layer stops the connection re-establishment process based on the indication that the LBT failed in the first serving cell is cancelled.
  • step 701 may be performed first, and then step 702, or step 702 may be performed first, and then step 701 may be performed.
  • the embodiment of the present invention does not limit the execution order of step 701 and step 702.
  • the first serving cell is a primary and secondary cell (PSCell): LBT failure is triggered on both PSCell and SCell1, and BWP handover for LBT failure recovery cannot be performed on PSCell, for example, random access resources are not configured.
  • PSCell primary and secondary cell
  • the MAC entity indicates to the higher layer, such as the RRC layer, that the LBT on the PSCell has failed. Based on the instruction, the RRC layer initiates the SCG failure information reporting process, and sends the SCG reporting information to the first network device where the PCell is located, indicating that the LBT on the PSCell fails.
  • the RRC layer initiates the SCG failure information reporting process, and sends the SCG reporting information to the first network device where the PCell is located, indicating that the LBT on the PSCell fails.
  • the MAC entity instructs a higher layer, such as the RRC layer, to cancel the persistent LBT failure on the PSCell. Based on the instruction, the RRC can stop sending SCG failure information to the first network device.
  • a higher layer such as the RRC layer
  • the network side including the first network device and the second network device fails to LBT on SCell1 and PSCell
  • the instruction is received only once, so it is possible to correctly understand the channel busyness based on the instruction and take corresponding actions, such as reconfiguring the secondary cell and/or performing BWP handover.
  • the network side including the first network device and the second network device only receives the LBT failures on SCell1 and PSCell once. Therefore, it is possible to correctly understand the busyness of the channel based on the instruction and take corresponding actions, such as reconfiguring the secondary cell and/or performing BWP handover.
  • the first serving cell is the primary cell (PCell): LBT failure is triggered on both PCell and SCell1, and BWP handover for LBT failure recovery cannot be performed on the PCell, for example, random access resources are not configured.
  • PCell primary cell
  • the MAC entity indicates to the higher layer, for example, the RRC, that the LBT on the PCell has failed. Based on this instruction, the RRC layer initiates the connection re-establishment process.
  • the serving SCell2 has UL-SCH resources that can be used for new transmissions and the LCP enables these resources to accommodate the LBT failure MAC CE plus its subheader, the MAC entity will instruct the multiplexing and assembly process to generate the LBT failure MAC CE2, where SCell1 and The bit corresponding to PCell is set to 1, and the other bits are set to 0.
  • the MAC entity instructs a higher layer, such as the RCC layer, to cancel the continuous LBT failure on the PCell. Based on this instruction, the RRC layer stops the connection re-establishment process.
  • a higher layer such as the RCC layer
  • the first network device receives only one indication for LBT failure on SCell1 and PCell, so it can be based on The instruction correctly understands the busyness of the channel and takes corresponding actions, for example, reconfiguring the secondary cell and/or performing BWP handover.
  • the first network device receives only one indication for LBT failure on SCell1 and PCell, so it can correctly understand that the channel is busy based on the indication Under the circumstances, take corresponding actions, for example, reconfigure the secondary cell and/or perform BWP handover.
  • the first LBT failure information generated in the first serving cell that triggers the LBT failure and indicates the generation it is the fourth LBT failure information, the fifth LBT failure information, the seventh LBT failure information, and the eighth LBT failure information.
  • the fourth LBT failure information the fifth LBT failure information
  • the seventh LBT failure information the seventh LBT failure information
  • the eighth LBT failure information One of the information.
  • the second serving cell that triggers the LBT failure and instructs to generate the second LBT failure information it is one of the third LBT failure information, the sixth LBT failure information, the seventh LBT failure information, and the eighth LBT failure information.
  • the LBT failure information when the LBT failure information is instructed to generate LBT failure information, the LBT failure in the serving cell where the LBT failure information indicates the LBT failure is cancelled.
  • the terminal device will not indicate to the network device that it is on a certain serving cell multiple times.
  • the occurrence of LBT failure avoids unnecessary BWP handover and/or secondary cell reconfiguration initiated by the network side, thereby ensuring the effective use of the NR-U channel.
  • the embodiment of the present invention provides a method for processing LBT failure, and the method is applied to the terminal device side.
  • FIG. 8 is a schematic diagram of a processing method for LBT failure in Embodiment 2 of the present invention. As shown in Figure 8, the method includes:
  • Step 801 The MAC entity instructs the upper layer to fail to cancel the LBT in the serving cell.
  • the MAC entity indicates to the higher layer.
  • the method further includes:
  • Step 802 When the serving cell that failed to cancel the LBT is the primary and secondary cell (PSCell), the higher layer stops sending the secondary cell group (SCG) failure information to the network device based on the indication of the failure to cancel the LBT in the serving cell; and /or,
  • SCG secondary cell group
  • Step 803 When the serving cell that failed to cancel the LBT is the primary cell (PCell), the higher layer stops the connection re-establishment process based on the indication of canceling the LBT failure in the serving cell.
  • PCell primary cell
  • the higher layer is, for example, the RRC layer.
  • LBT failure is triggered on both PSCell and SCell1, and BWP handover for LBT failure recovery cannot be performed on PSCell, for example, random access resources are not configured.
  • BWP handover for LBT failure recovery cannot be performed on PSCell, for example, random access resources are not configured.
  • the MAC entity indicates to the higher layer, such as the RRC layer, that the LBT on the PSCell has failed. Based on the instruction, the RRC layer initiates the SCG failure information reporting process, and sends the SCG report information to the first network device where the PCell is located, indicating that the LBT on the PSCell fails.
  • the RRC layer initiates the SCG failure information reporting process, and sends the SCG report information to the first network device where the PCell is located, indicating that the LBT on the PSCell fails.
  • the MAC entity instructs a higher layer, such as the RRC layer, to cancel the persistent LBT failure on the PSCell. Based on the instruction, the RRC can stop sending SCG failure information to the first network device.
  • a higher layer such as the RRC layer
  • LBT failure is triggered on both PCell and SCell1, and BWP handover for LBT failure recovery cannot be performed on PCell, for example, random access resources are not configured, in this case:
  • the MAC entity Since the BWP handover for LBT failure recovery cannot be performed on the PCell, the MAC entity indicates to the higher layer, for example, the RRC, that the LBT on the PCell has failed. Based on this instruction, the RRC layer initiates the connection re-establishment process.
  • the MAC entity instructs a higher layer, such as the RCC layer, to cancel the continuous LBT failure on the PCell. Based on this instruction, the RRC layer stops the connection re-establishment process.
  • a higher layer such as the RCC layer
  • the MAC entity instructs the higher layer to cancel the LBT failure in the serving cell, thereby stopping sending the secondary cell group (SCG) failure information to the network device or stopping the connection re-establishment process.
  • SCG secondary cell group
  • the embodiment of the present invention provides a method for processing LBT failure, which is applied to the network device side, and corresponds to the method for processing LBT failure on the terminal device side described in Embodiment 1. The same content will not be repeated. .
  • FIG. 9 is a schematic diagram of a processing method for LBT failure in Embodiment 3 of the present invention. As shown in Figure 9, the method includes:
  • Step 901 Receive LBT failure information from a terminal device, where the LBT failure information indicates that the LBT triggered in the serving cell fails.
  • the serving cell includes at least one of a primary cell (PCell), a primary secondary cell (PSCell), and a secondary cell (SCell).
  • PCell primary cell
  • PSCell primary secondary cell
  • SCell secondary cell
  • the LBT failure information is carried by MAC CE and/or higher layer messages.
  • the high-level message is an RRC message.
  • the LBT failure information is the LBT failure MAC CE, or the PDU including the LBT failure MAC CE, or the sub-header indicates the PDU of the LBT failure on one or more serving cells.
  • the method may further include:
  • Step 902 According to the LBT failure information, reconfigure the secondary cell and/or perform BWP handover.
  • the specific content of the LBT failure information and the conditions for generation, as well as the specific process of the network device reconfiguring the secondary cell and/or performing BWP handover according to the LBT failure information can be found in the record in Embodiment 1. The description will not be repeated here.
  • the LBT failure information when the LBT failure information is instructed to generate LBT failure information, the LBT failure in the serving cell where the LBT failure information indicates the LBT failure is cancelled.
  • the terminal device will not indicate to the network device that it is on a certain serving cell multiple times.
  • the occurrence of LBT failure avoids unnecessary BWP handover and/or secondary cell reconfiguration initiated by the network side, thereby ensuring the effective use of the NR-U channel.
  • the embodiment of the present invention provides a method for processing LBT failure, which is applied to the network device side and the terminal device side, and corresponds to the method for processing LBT failure applied to the terminal device side described in Embodiment 1 and Embodiment 3
  • the same content will not be repeated.
  • FIG. 10 is a schematic diagram of a processing method for LBT failure according to Embodiment 4 of the present invention. As shown in Figure 10, the method includes:
  • Step 1001 When the terminal device instructs to generate LBT failure information, it cancels the LBT failure in the serving cell where the LBT failure information indicates the LBT failure;
  • Step 1002 The terminal device sends the LBT failure information to the network device;
  • Step 1003 The network device reconfigures the secondary cell and/or performs BWP handover according to the LBT failure information.
  • step 1001 to step 1003 can refer to the description of Embodiment 1 and Embodiment 3, and the description will not be repeated here.
  • the LBT failure information when the LBT failure information is instructed to generate LBT failure information, the LBT failure in the serving cell where the LBT failure information indicates the LBT failure is cancelled.
  • the terminal device will not indicate to the network device that it is on a certain serving cell multiple times.
  • the occurrence of LBT failure avoids unnecessary BWP handover and/or secondary cell reconfiguration initiated by the network side, thereby ensuring the effective use of the NR-U channel.
  • the embodiment of the present invention provides an LBT failure processing device, which is configured on the terminal device side. Since the principle of the device to solve the problem is similar to the method of embodiment 1, its specific implementation can refer to the implementation of the method of embodiment 1, and the same content or related parts will not be repeated.
  • FIG. 11 is a schematic diagram of an LBT failure processing apparatus according to Embodiment 5 of the present invention. As shown in FIG. 11, the apparatus 1100 includes:
  • the first canceling unit 1101 is configured to cancel the LBT failure in the serving cell where the LBT failure information indicates the LBT failure when the LBT failure information is instructed to be generated.
  • the first canceling unit 1101 instructs to generate the first LBT failure information and cancel the first LBT failure when the LBT failure is triggered in the first serving cell and the LBT failure is not canceled, and the first condition is met.
  • the LBT in the serving cell fails; and/or, when the LBT failure is triggered in the second serving cell and the LBT failure is not cancelled, and the second condition is met, the second LBT failure information is instructed to be generated, and the second LBT failure information is canceled.
  • the apparatus 1100 further includes:
  • the indicating unit 1102 is used to instruct to generate LBT failure information when the LBT failure is triggered in the serving cell and the LBT failure is not cancelled, and the preset condition is met;
  • the first sending unit 1103 is configured to send the LBT failure information to the network device.
  • FIG. 12 is another schematic diagram of an LBT failure processing apparatus according to Embodiment 5 of the present invention, which is aimed at a situation where LBT failure is first triggered on a second serving cell, and a continuous LBT failure is triggered on the first serving cell after a period of time .
  • the apparatus 1200 includes:
  • the second canceling unit 1201 is used to instruct to generate third LBT failure information and cancel all LBT failures in the second serving cell when the LBT failure is triggered in the second serving cell and the LBT failure is not canceled, and the second condition is met. LBT failed;
  • the second indicating unit 1202 is used to instruct to generate fourth LBT failure information and cancel the LBT failure information in the first serving cell when the LBT failure is triggered in the first serving cell and the LBT failure is not cancelled, and the first condition is met.
  • the LBT fails, and the fourth LBT failure information does not include information about the LBT failure in the second serving cell.
  • FIG. 13 is another schematic diagram of the LBT failure processing device according to Embodiment 5 of the present invention, which is aimed at the situation where the LBT failure is triggered on the first serving cell first, and a continuous LBT failure is triggered on the second serving cell after a period of time .
  • the apparatus 1300 includes:
  • the third canceling unit 1301 is configured to instruct to generate fifth LBT failure information and cancel the LBT failure information in the first serving cell when the LBT failure is triggered in the first serving cell and the LBT failure is not canceled, and the first condition is met. LBT failure;
  • the third instructing unit 1302 is used to instruct to generate the sixth LBT failure information and cancel the LBT failure information in the second serving cell when the LBT failure is triggered in the second serving cell and the LBT failure is not cancelled, and the second condition is met.
  • the LBT fails, and the sixth LBT failure information does not include information about the LBT failure in the first serving cell.
  • FIG. 14 is another schematic diagram of the LBT failure processing device of Embodiment 5 of the present invention, which is aimed at the first serving cell and a second serving cell triggering LBT failure, and LBT can be performed on the first serving cell In the case of a BWP handover that failed to recover.
  • the device 1400 includes:
  • the fourth canceling unit 1401 is used to instruct to generate the seventh LBT failure information when the first condition is met, or the first condition is not met but the second condition is met, and cancel the first serving cell and the second serving cell The LBT failed.
  • FIG. 15 is another schematic diagram of the device for processing LBT failure according to Embodiment 5 of the present invention. As shown in FIG. 15, the device 1500 includes:
  • a canceling unit 1501 which is used to cancel the LBT failure in the serving cell where the LBT failure information indicates the LBT failure when the LBT failure information is instructed to generate;
  • the first indication unit 1502 which is used by the MAC entity to indicate that the higher layer fails to cancel the LBT in the serving cell
  • the first stopping unit 1503 is used to stop sending the secondary cell group ( SCG) failure message; and/or,
  • the second stopping unit 1504 is used for when the serving cell that failed to cancel the LBT is the primary cell (PCell), the higher layer stops the connection re-establishment process based on the indication of the failure to cancel the LBT in the serving cell.
  • the apparatus 1600 includes:
  • the fourth indicating unit 1601 is used by the MAC entity to indicate to the higher layer that the LBT in the first serving cell fails;
  • a fifth canceling unit 1602 configured to instruct to generate eighth LBT failure information when the first condition is not met but the second condition is met, and cancel the LBT failure in the first serving cell and the second serving cell;
  • the sixth canceling unit 1603 is used by the MAC entity to instruct the higher layer to cancel the LBT failure in the first serving cell.
  • the apparatus 1600 further includes:
  • the third stopping unit 1604 is used for when the first serving cell is a primary and secondary cell (PSCell), the higher layer stops sending SCG failure information to the network device based on the indication of canceling the LBT failure in the first serving cell; and / or,
  • the fourth stopping unit 1605 is used for when the first serving cell is the primary cell (PCell), the higher layer stops the connection re-establishment process based on the indication of canceling the LBT failure in the first serving cell.
  • the LBT failure information when the LBT failure information is instructed to generate LBT failure information, the LBT failure in the serving cell where the LBT failure information indicates the LBT failure is cancelled.
  • the terminal device will not indicate to the network device that it is on a certain serving cell multiple times.
  • the occurrence of LBT failure avoids unnecessary BWP handover and/or secondary cell reconfiguration initiated by the network side, thereby ensuring the effective use of the NR-U channel.
  • the embodiment of the present invention provides an LBT failure processing device, which is configured on the terminal device side. Since the principle of the device to solve the problem is similar to the method of embodiment 2, its specific implementation can refer to the implementation of the method of embodiment 2, and the same content or related parts will not be repeated.
  • FIG. 17 is a schematic diagram of an LBT failure processing apparatus according to Embodiment 6 of the present invention. As shown in FIG. 17, the apparatus 1700 includes:
  • the fifth indicating unit 1701 is used by the MAC entity to indicate that the upper layer fails to cancel the LBT in the serving cell.
  • the MAC entity indicates to the higher layer.
  • the apparatus 1700 further includes:
  • the fifth stopping unit 1702 is used to stop sending the secondary cell group ( SCG) failure message; and/or,
  • the sixth stopping unit 1703 is used for when the serving cell that failed to cancel the LBT is the primary cell (PCell), the higher layer stops the connection re-establishment process based on the indication of the failure to cancel the LBT in the serving cell.
  • the MAC entity instructs the upper layer to cancel the LBT failure in the serving cell, thereby stopping sending the secondary cell group (SCG) failure information to the network device or stopping the connection re-establishment process.
  • SCG secondary cell group
  • the embodiment of the present invention provides an LBT failure processing device, which is configured on the network equipment side. Since the principle of the device to solve the problem is similar to the method of embodiment 3, its specific implementation can refer to the implementation of the method described in embodiment 3, and the same content or related parts will not be repeated.
  • FIG. 18 is a schematic diagram of an LBT failure processing apparatus according to Embodiment 7 of the present invention. As shown in FIG. 18, the apparatus 1800 includes:
  • the first receiving unit 1801 is configured to receive LBT failure information from a terminal device, where the LBT failure information indicates that the LBT triggered in the serving cell fails.
  • the apparatus 1800 may further include:
  • the first processing unit 1802 is configured to reconfigure the secondary cell and/or perform BWP handover according to the LBT failure information.
  • the specific content of the LBT failure information and the conditions for generation, as well as the specific process of the network device reconfiguring the secondary cell and/or performing BWP handover according to the LBT failure information can be found in the record in Embodiment 1. The description will not be repeated here.
  • the LBT failure information when the LBT failure information is instructed to generate LBT failure information, the LBT failure in the serving cell where the LBT failure information indicates the LBT failure is cancelled.
  • the terminal device will not indicate to the network device that it is on a certain serving cell multiple times.
  • the occurrence of LBT failure avoids unnecessary BWP handover and/or secondary cell reconfiguration initiated by the network side, thereby ensuring the effective use of the NR-U channel.
  • the embodiment of the present invention provides a terminal device, and the terminal device includes the LBT failure processing apparatus as described in Embodiment 5 or Embodiment 6.
  • FIG. 19 is a schematic block diagram of the system configuration of a terminal device according to Embodiment 8 of the present invention.
  • the terminal device 1900 may include a processor 1910 and a memory 1920; the memory 1920 is coupled to the processor 1910. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to implement telecommunication functions or other functions.
  • the function of the processing device for LBT failure may be integrated into the processor 1910.
  • the processor 1910 may be configured to: when instructed to generate LBT failure information, cancel the LBT failure in the serving cell where the LBT failure information indicates the LBT failure,
  • the processor 1910 may be configured to: the MAC entity instructs a higher layer to cancel the LBT failure in the serving cell.
  • the LBT failure processing device can be configured separately from the processor 1910.
  • the LBT failure processing device can be configured as a chip connected to the processor 1910, and the LBT failure processing can be implemented through the control of the processor 1910. The function of the device.
  • the terminal device 1900 may further include: a communication module 1930, an input unit 1940, a display 1950, and a power supply 1960. It is worth noting that the terminal device 1900 does not necessarily include all the components shown in FIG. 19; in addition, the terminal device 1900 may also include components not shown in FIG. 19, and reference may be made to related technologies.
  • the processor 1910 is sometimes called a controller or operating control, and may include a microprocessor or other processor device and/or logic device.
  • the processor 1910 receives input and controls the operation of the various components of the terminal device 1900. operate.
  • the memory 1920 may be, for example, one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices.
  • Various data can be stored, in addition to the program that executes related information.
  • the processor 1910 can execute the program stored in the memory 1920 to implement information storage or processing.
  • the functions of other components are similar to the existing ones, so I won't repeat them here.
  • Each component of the terminal device 1900 can be implemented by dedicated hardware, firmware, software, or a combination thereof, without departing from the scope of the present invention.
  • the LBT failure information when the LBT failure information is instructed to generate LBT failure information, the LBT failure in the serving cell where the LBT failure information indicates the LBT failure is cancelled.
  • the terminal device will not indicate to the network device that it is on a certain serving cell multiple times.
  • the occurrence of LBT failure avoids unnecessary BWP handover and/or secondary cell reconfiguration initiated by the network side, thereby ensuring the effective use of the NR-U channel.
  • the embodiment of the present invention provides a network device, and the network device includes the LBT failure processing device as described in the seventh embodiment.
  • FIG. 20 is a schematic block diagram of the system configuration of a network device according to Embodiment 9 of the present invention.
  • the network device 2000 may include: a processor (processor) 2010 and a memory 2020; the memory 2020 is coupled to the processor 2010.
  • the memory 2020 can store various data; in addition, it also stores an information processing program 2030, and executes the program 2030 under the control of the processor 2010 to receive various information sent by the terminal device and send various information to the terminal device .
  • the function of the processing device for LBT failure may be integrated into the processor 2010.
  • the processor 2010 may be configured to receive LBT failure information from the terminal device, where the LBT failure information indicates the LBT failure triggered in the serving cell.
  • the LBT failure processing device can be configured separately from the processor 2010.
  • the LBT failure processing device can be configured as a chip connected to the processor 2010, and the LBT failure processing can be implemented through the control of the processor 2010. The function of the device.
  • the network device 2000 may further include: a transceiver 2040, an antenna 2050, etc.; wherein the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It is worth noting that the network device 2000 does not necessarily include all the components shown in FIG. 20; in addition, the network device 2000 may also include components not shown in FIG. 20, and reference may be made to the prior art.
  • the LBT failure information when the LBT failure information is instructed to generate LBT failure information, the LBT failure in the serving cell where the LBT failure information indicates the LBT failure is cancelled.
  • the terminal device will not indicate to the network device that it is on a certain serving cell multiple times.
  • the occurrence of LBT failure avoids unnecessary BWP handover and/or secondary cell reconfiguration initiated by the network side, thereby ensuring the effective use of the NR-U channel.
  • An embodiment of the present invention provides a communication system, including the terminal device according to Embodiment 8 and/or the network device according to Embodiment 9.
  • the structure of the communication system can refer to FIG. 1.
  • the communication system 100 includes a network device 101 and a terminal device 102.
  • the terminal device 102 is the same as the terminal device described in Embodiment 8.
  • the network device 101 is similar to the embodiment.
  • the network equipment recorded in 9 is the same, and the repeated content will not be repeated.
  • the above devices and methods of the present invention can be implemented by hardware, or can be implemented by hardware combined with software.
  • the present invention relates to such a computer-readable program, when the program is executed by a logic component, the logic component can realize the above-mentioned device or constituent component, or the logic component can realize the above-mentioned various methods Or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, etc.
  • the present invention also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, and the like.
  • the method/device described in conjunction with the embodiments of the present invention can be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams and/or one or more combinations of the functional block diagrams shown in FIG. 11 may correspond to each software module of the computer program flow, or may correspond to each hardware module.
  • These software modules can respectively correspond to the steps shown in FIG. 2.
  • These hardware modules can be implemented by solidifying these software modules by using a field programmable gate array (FPGA), for example.
  • FPGA field programmable gate array
  • the software module can be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art.
  • a storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be a component of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described in FIG. 11 can be implemented as a general-purpose processor or a digital signal processor ( DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, or any appropriate combination thereof.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described with respect to FIG. 11 can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, or multiple microcomputers.
  • a device for processing LBT failure the device is applied to the terminal equipment side, and the device includes:
  • the first canceling unit is used to cancel the LBT failure in the serving cell where the LBT failure information indicates the LBT failure when the LBT failure information is instructed to be generated.
  • the serving cell includes at least one of a primary cell (PCell), a primary secondary cell (PSCell), and a secondary cell (SCell).
  • PCell primary cell
  • PSCell primary secondary cell
  • SCell secondary cell
  • the LBT failure information is carried by MAC CE and/or higher layer messages.
  • the high-level message is an RRC message.
  • the LBT failure information is the LBT failure MAC CE, or the PDU including the LBT failure MAC CE, or the sub-header indicates the PDU of the LBT failure on one or more serving cells.
  • the first indication unit is used by the MAC entity to indicate that the higher layer fails to cancel the LBT in the serving cell.
  • the first stopping unit is used for when the serving cell that failed to cancel the LBT is the primary and secondary cell (PSCell), the higher layer stops sending the secondary to the network device based on the indication of the failure to cancel the LBT in the serving cell Cell Group (SCG) failure information; and/or,
  • SCG serving cell Cell Group
  • the second stopping unit is used for when the serving cell that fails to cancel the LBT is a primary cell (PCell), the higher layer stops the connection re-establishment process based on the indication of the failure to cancel the LBT in the serving cell.
  • PCell primary cell
  • the LBT failure When the LBT failure is triggered in the second serving cell and the LBT failure is not cancelled, and the second condition is met, it is instructed to generate second LBT failure information and cancel the LBT failure in the second serving cell.
  • the first cancellation unit includes:
  • the second canceling unit is configured to instruct to generate third LBT failure information and cancel the first LBT failure when the LBT failure is triggered in the second serving cell and the LBT failure is not canceled, and the second condition is met. 2.
  • the LBT in the serving cell fails.
  • the second instructing unit is used to instruct to generate fourth LBT failure information and cancel the first LBT failure when the LBT failure is triggered in the first serving cell and the LBT failure is not cancelled, and the first condition is met.
  • An LBT failure in a serving cell the fourth LBT failure information does not include information that an LBT failure occurs in the second serving cell.
  • the first cancellation unit includes:
  • the third canceling unit is configured to instruct to generate fifth LBT failure information and cancel the first LBT failure when the LBT failure is triggered in the first serving cell and the LBT failure is not canceled, and the first condition is met. LBT in a serving cell fails.
  • the third instructing unit is used to instruct to generate sixth LBT failure information and cancel the first LBT failure when the LBT failure is triggered in the second serving cell and the LBT failure is not cancelled, and the second condition is met.
  • LBT failure in the second serving cell the sixth LBT failure information does not include information that the LBT failure occurred in the first serving cell.
  • LBT failure is triggered in both the first serving cell and the second serving cell and the LBT failure is not cancelled, and the BWP handover for LBT failure recovery can be performed on the first serving cell
  • the first cancellation unit includes:
  • a fourth canceling unit which is used to instruct to generate seventh LBT failure information when the first condition is met, or the first condition is not met but the second condition is met, and cancel the first serving cell and The LBT in the second serving cell fails.
  • Both the first serving cell and the second serving cell trigger continuous LBT failure without canceling the LBT failure, and the BWP handover for LBT failure recovery cannot be performed on the first serving cell,
  • the device also includes:
  • a fourth indication unit which is used by the MAC entity to indicate to a higher layer that the LBT in the first serving cell fails
  • the first canceling unit includes: a fifth canceling unit, configured to instruct to generate eighth LBT failure information when the first condition is not met but the second condition is met, and cancel the first serving cell and the LBT in the second serving cell fails;
  • the device also includes:
  • the sixth canceling unit is used by the MAC entity to instruct the higher layer to cancel the LBT failure in the first serving cell.
  • the third stopping unit is used for when the first serving cell is a primary and secondary cell (PSCell), the higher layer stops sending SCG to the network device based on the indication of canceling the LBT failure in the first serving cell Failure message; and/or,
  • the fourth stopping unit is used for when the first serving cell is the primary cell (PCell), the higher layer stops the connection re-establishment process based on the indication of canceling the LBT failure in the first serving cell.
  • the first condition is that there are UL-SCH resources available for new transmission in the first serving cell and logical channel prioritization (LCP) enables the resources to accommodate the first LBT failure information and its sub-headers, and /or
  • the second condition is that there is a UL-SCH resource available for new transmission in a serving cell that does not trigger an LBT failure, and logical channel prioritization (LCP) enables the resource to accommodate the second LBT failure information and its subheader .
  • LCP logical channel prioritization
  • the high layer is the RRC layer.
  • the first sending unit is configured to send the LBT failure information to the network device.
  • a device for processing LBT failure the device is applied to the terminal equipment side, and the device includes:
  • the fifth indication unit is used by the MAC entity to indicate that the upper layer fails to cancel the LBT in the serving cell.
  • the MAC entity When canceling the LBT in a serving cell fails, the MAC entity makes the instruction to the higher layer.
  • the fifth stopping unit is used for when the serving cell that failed to cancel the LBT is the primary and secondary cell (PSCell), the higher layer stops sending the secondary to the network device based on the indication of the failure to cancel the LBT in the serving cell Cell Group (SCG) failure information; and/or,
  • SCG serving cell Cell Group
  • the sixth stopping unit is used for when the serving cell that fails to cancel the LBT is a primary cell (PCell), the higher layer stops the connection re-establishment process based on the indication of the failure to cancel the LBT in the serving cell.
  • PCell primary cell
  • the high layer is the RRC layer.
  • a device for processing LBT failure the device is applied to the network equipment side, and the device includes:
  • the first receiving unit is used to receive LBT failure information from the terminal device,
  • the LBT failure information indicates that the LBT triggered in the serving cell fails.
  • the serving cell includes at least one of a primary cell (PCell), a primary secondary cell (PSCell), and a secondary cell (SCell).
  • PCell primary cell
  • PSCell primary secondary cell
  • SCell secondary cell
  • the LBT failure information is carried by MAC CE and/or higher layer messages.
  • the high-level message is an RRC message.
  • the LBT failure information is the LBT failure MAC CE, or the PDU including the LBT failure MAC CE, or the sub-header indicates the PDU of the LBT failure on one or more serving cells.
  • a terminal device comprising the device according to any one of appendix 1-23.
  • a network device comprising the device according to any one of Supplementary Notes 24-28.
  • a communication system comprising the terminal equipment according to Supplement 29 and/or the network equipment according to Supplement 30.
  • a method for processing LBT failure is applied to the terminal device side, and the method includes:
  • the serving cell includes at least one of a primary cell (PCell), a primary secondary cell (PSCell), and a secondary cell (SCell).
  • PCell primary cell
  • PSCell primary secondary cell
  • SCell secondary cell
  • the LBT failure information is carried by MAC CE and/or higher layer messages.
  • the high-level message is an RRC message.
  • the LBT failure information is the LBT failure MAC CE, or the PDU including the LBT failure MAC CE, or the sub-header indicates the PDU of the LBT failure on one or more serving cells.
  • the MAC entity instructs the higher layer to cancel the LBT in the serving cell and fails.
  • the higher layer stops sending secondary cell group (SCG) failure information to the network device based on the indication of canceling the LBT failure in the serving cell; and / or,
  • SCG secondary cell group
  • the higher layer stops the connection re-establishment process based on the indication of canceling the LBT failure in the serving cell.
  • the LBT failure When the LBT failure is triggered in the second serving cell and the LBT failure is not cancelled, and the second condition is met, it is instructed to generate second LBT failure information and cancel the LBT failure in the second serving cell.
  • the fourth LBT failure information does not include information about LBT failure in the second serving cell.
  • the sixth LBT failure information does not include information about LBT failure in the first serving cell.
  • LBT failure is triggered in both the first serving cell and the second serving cell and the LBT failure is not cancelled, and the BWP handover for LBT failure recovery can be performed on the first serving cell
  • the seventh LBT failure information is instructed to be generated, and the first serving cell and the second serving cell are cancelled. LBT failed.
  • Both the first serving cell and the second serving cell trigger continuous LBT failure without canceling the LBT failure, and the BWP handover for LBT failure recovery cannot be performed on the first serving cell,
  • the method also includes:
  • the MAC entity indicates to the higher layer that the LBT in the first serving cell fails
  • the MAC entity instructs the higher layer to cancel the LBT in the first serving cell and fails.
  • the higher layer stops sending SCG failure information to the network device based on the indication of canceling the LBT failure in the first serving cell; and/or,
  • the higher layer stops the connection re-establishment process based on the indication of canceling the LBT failure in the first serving cell.
  • the first condition is that there are UL-SCH resources available for new transmission in the first serving cell and logical channel prioritization (LCP) enables the resources to accommodate the first LBT failure information and its sub-headers, and /or
  • the second condition is that there is a UL-SCH resource available for new transmission in a serving cell that does not trigger an LBT failure, and logical channel prioritization (LCP) enables the resource to accommodate the second LBT failure information and its subheader .
  • LCP logical channel prioritization
  • the high layer is the RRC layer.
  • a method for processing LBT failure is applied to the terminal device side, and the method includes:
  • the MAC entity instructs the upper layer to cancel the LBT in the serving cell and fails.
  • the MAC entity When canceling the LBT in a serving cell fails, the MAC entity makes the instruction to the higher layer.
  • the higher layer stops sending secondary cell group (SCG) failure information to the network device based on the indication of canceling the LBT failure in the serving cell; and / or,
  • SCG secondary cell group
  • the higher layer stops the connection re-establishment process based on the indication of canceling the LBT failure in the serving cell.
  • the high layer is the RRC layer.
  • a method for processing LBT failure is applied to the network device side, and the method includes:
  • the LBT failure information indicates that the LBT triggered in the serving cell fails.
  • the serving cell includes at least one of a primary cell (PCell), a primary secondary cell (PSCell), and a secondary cell (SCell).
  • PCell primary cell
  • PSCell primary secondary cell
  • SCell secondary cell
  • the LBT failure information is carried by MAC CE and/or higher layer messages.
  • the high-level message is an RRC message.
  • the LBT failure information is the LBT failure MAC CE, or the PDU including the LBT failure MAC CE, or the sub-header indicates the PDU of the LBT failure on one or more serving cells.

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Abstract

一种LBT失败的处理方法及装置。所述方法应用于终端设备侧，所述方法包括：当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败。

Description

LBT失败的处理方法及装置 技术领域
本发明涉及通信领域。
背景技术
为了在未授权频段上提供3GPP服务，引入了以下机制：通话前监听(Listen Before Talk，LBT)以及发现信号测量定时配置(Discovery RS Measurement Timing Configuration，DMTC)。其中，低层执行LBT过程，根据LBT结果，如果信道确定被占用，不进行传输。当低层在传输前执行了LBT过程且该传输未执行，MAC(Media Access Control，介质访问控制)实体收到低层的LBT失败指示。
应该注意，上面对技术背景的介绍只是为了方便，对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
在未授权频段上的新无线(NR-U，New Radio)系统中，引入了LBT失败检测和恢复机制。
RRC(Radio Resource Control，无线资源控制)层可以为MAC实体配置持续LBT失败的恢复过程。持续LBT失败的检测是每个上行BWP(Bandwidth part)上进行的，MAC实体通过计算收到的来自低层的所有上行传输的LBT失败指示的数量进行检测。当收到的来自低层的所有上行传输的LBT失败指示的数量超过阈值时，触发持续LBT失败。
当在主小区(PCell)或者主辅小区(PSCell)上发生持续LBT失败时，终端设备可以切换到另一个BWP上并发起随机接入。在这种情况下，终端设备触发MAC CE(Control Element)向网络指示持续LBT失败的发生，该MAC CE在随机接入过程期间终端设备切换到的BWP上发送。
当在一个辅小区(SCell)上检测到持续LBT失败时，使用一个MAC CE向该SCell所属的网络设备上报该失败，该MAC CE在不同于发生持续LBT失败的SCell 的另外一个小区上发送。另外，该MAC CE可以上报多个失败的小区。
如果没有可用的上行资源发送指示发生持续LBT失败的SCell的MAC CE，终端设备可触发调度请求(Scheduling Request，SR)。当终端设备成功发送了指示一个服务小区的LBT失败的MAC CE，取消该服务小区或BWP上的持续LBT失败。
发明人发现，按照现有的规则，MAC实体将会：如果特殊小区(SpCell)即主小区(PCell)或者主辅小区(PSCell)中触发了持续LBT失败且未取消，且如果该特殊小区里有可用于新传输的上行共享信道(UL-SCH)资源且逻辑信道优先化(logical channel prioritization，LCP)使这些资源能容纳该LBT失败MAC CE加上其子头，则指示复用与组装(Multiplexing and Assembly)过程生成LBT失败MAC CE。否则，如果在至少一个辅小区(SCell)中触发了持续LBT失败且未取消，且如果一个未触发持续LBT失败的服务小区里有可用于新传的UL-SCH资源且LCP使这些资源能容纳该LBT失败MAC CE加上其子头，则指示复用与组装(Multiplexing and Assembly)过程生成LBT失败MAC CE；否则，触发LBT失败MAC CE的SR。
如果发送了一个MAC PDU(Protocol Data Unit，协议数据单元)且该PDU包括LBT失败MAC CE，不管低层的LBT指示，MAC实体将会取消在发送的LBT失败MAC CE里指示了持续LBT失败的服务小区中触发的持续LBT失败。
这样，终端设备可能向网络设备多次指示某个服务小区上发生的LBT失败，因此网络设备可能误解NR-U(NR-Unlicensed)信道的忙碌情况，从而造成PCell上不必要的BWP切换和不必要的SCell重配置，并造成NR-U信道的使用效率较低。
为了解决上述问题中的一个或多个，本发明实施例提供了一种LBT失败的处理方法及装置。
根据本发明实施例的第一方面，提供了一种LBT失败的处理装置，所述装置应用于终端设备侧，所述装置包括：第一取消单元，其用于当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败。
根据本发明实施例的第二方面，提供了一种LBT失败的处理装置，所述装置应用于终端设备侧，所述装置包括：第五指示单元，其用于MAC实体指示高层取消服务小区中的LBT失败。
根据本发明实施例的第三方面，提供了一种LBT失败的处理装置，所述装置应用于网络设备侧，所述装置包括：第一接收单元，其用于从终端设备接收LBT失败 信息，所述LBT失败信息指示服务小区中触发的LBT失败。
根据本发明实施例的第四方面，提供了一种终端设备，所述终端设备包括根据本发明实施例的第一方面或第二方面所述的装置。
根据本发明实施例的第五方面，提供了一种网络设备，所述网络设备包括根据本发明实施例的第三方面所述的装置。
根据本发明实施例的第六方面，提供了一种通信系统，所述通信系统包括根据本发明实施例的第四方面所述的终端设备和/或本发明实施例的第五方面所述的网络设备。
根据本发明实施例的第七方面，提供了一种LBT失败的处理方法，所述方法应用于终端设备侧，所述方法包括：当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败。
根据本发明实施例的第八方面，提供了一种LBT失败的处理方法，所述方法应用于终端设备侧，所述方法包括：MAC实体指示高层取消服务小区中的LBT失败
根据本发明实施例的第九方面，提供了一种LBT失败的处理方法，所述方法应用于网络设备侧，所述方法包括：从终端设备接收LBT失败信息，所述LBT失败信息指示服务小区中触发的LBT失败。
根据本发明实施例的第十方面，提供了一种提供了一种计算机可读程序，其中当在LBT失败的处理装置或终端设备中执行所述程序时，所述程序使得所述LBT失败的处理装置或终端设备执行本发明实施例的第七方面或第八方面所述的LBT失败的处理方法。
根据本发明实施例的第十一方面，提供了一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得LBT失败的处理装置或终端设备执行本发明实施例的第七方面或第八方面所述的LBT失败的处理方法。
根据本发明实施例的第十二方面，提供了一种计算机可读程序，其中当在LBT失败的处理装置或网络设备中执行所述程序时，所述程序使得所述LBT失败的处理装置或网络设备执行本发明实施例的第九方面所述的LBT失败的处理方法。
根据本发明实施例的第十三方面，提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得LBT失败的处理装置或网络设备执行本发明实施例的第九方面所述的LBT失败的处理方法。
本发明实施例的有益效果在于：当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含/具有”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本发明实施例的进一步的理解，其构成了说明书的一部分，用于例示本发明的实施方式，并与文字描述一起来阐释本发明的原理。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。在附图中：
图1是本发明实施例的通信系统的一示意图；
图2是本发明实施例1的LBT失败的处理方法的一示意图；
图3是本发明实施例1的LBT失败的处理方法的另一示意图；
图4是本发明实施例1的LBT失败的处理方法的又一示意图；
图5是本发明实施例1的LBT失败的处理方法的又一示意图；
图6是本发明实施例1的LBT失败的处理方法的又一示意图；
图7是本发明实施例1的LBT失败的处理方法的又一示意图；
图8本发明实施例2的LBT失败的处理方法的一示意图；
图9本发明实施例3的LBT失败的处理方法的一示意图；
图10是本发明实施例4的LBT失败的处理方法的一示意图；
图11是本发明实施例5的LBT失败的处理装置的一示意图；
图12是本发明实施例5的LBT失败的处理装置的另一示意图；
图13是本发明实施例5的LBT失败的处理装置的又一示意图；
图14是本发明实施例5的LBT失败的处理装置的又一示意图；
图15是本发明实施例5的LBT失败的处理装置的又一示意图；
图16是本发明实施例5的LBT失败的处理方法的又一示意图；
图17是本发明实施例6的LBT失败的处理装置的一示意图；
图18是本发明实施例7的LBT失败的处理装置的一示意图；
图19是本发明实施例8的终端设备的系统构成的一示意框图；
图20是本发明实施例9的网络设备的系统构成的一示意框图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本发明实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本发明实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本发明实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意 通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及未来的5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本发明实施例中，术语“网络设备”例如是指通信系统中将用户设备接入通信网络并为该用户设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本发明实施例中，术语“用户设备”(UE，User Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备，也可以称为“终端设备”(TE，Terminal Equipment)。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行 监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
以下通过示例对本发明实施例的场景进行说明，但本发明不限于此。
图1是本发明实施例的通信系统的一示意图，其示意性说明了以终端设备和网络设备为例的情况，如图1所示，通信系统100可以包括：网络设备101和终端设备102。为简单起见，图1仅以一个终端设备为例进行说明。网络设备101例如为NR的网络设备gNB。
在本发明实施例中，网络设备101和终端设备102之间可以进行现有的业务或者未来可实施的业务。例如，这些业务包括但不限于：增强的移动宽带(eMBB，enhanced Mobile Broadband)、大规模机器类型通信(mMTC，massive Machine Type Communication)和高可靠低时延通信(URLLC，Ultra-Reliable and Low-Latency Communication)，等等。
当终端设备进行LBT时，可能发生LBT失败，按照现有的规则，终端设备可能向网络设备多次指示某个服务小区上发生的LBT失败，因此网络设备可能误解NR-U信道的忙碌情况，从而造成PCell上不必要的BWP切换和不必要的SCell重配置，并造成NR-U信道的使用效率较低。
例如，假设一个终端设备配置了四个服务小区，即一个主小区PCell，一个主辅小区PSCell和两个辅小区SCell1和SCell2，可能发生以下的情况：
情况1：SCell1上先触发了持续LBT失败；一段时间后，PCell上触发了持续LBT失败。
当SCell1上触发持续LBT失败时，SCell2或PCell上有可用于新传的UL-SCH资源且LCP使这些资源能容纳该LBT失败MAC CE加上其子头，MAC实体将会指示复用与组装过程(Multiplexing and Assembly)生成LBT失败MAC CE1，其中，SCell1对应的服务小区索引对应的比特置为1，其他比特置为0。
一段时间后，当PCell上触发了持续LBT失败时，MAC实体进行BWP切换，并发起随机接入过程；如果PCell上有可用于新传输的UL-SCH资源且逻辑信道优先化使这些资源能容纳该LBT失败MAC CE加上其子头，且LBT失败MAC CE1所在的MAC PDU尚未发送，MAC实体将会指示复用与组装过程生成LBT失败MAC  CE2，其中，SCell1和PCell对应的服务小区索引对应的比特置为1，其他比特置为0。
这样，在情况1下，网络设备可能会先后收到2个MAC PDU，分别包括LBT失败MAC CE1和LBT失败MAC CE2，由于LBT失败MAC CE1和LBT失败MAC CE2中的SCell1对应的比特均置为1，网络设备可能会执行2次SCell1的重配置，并认为所在信道都忙碌。
情况2：PCell上先触发了持续LBT失败；一段时间后，SCell1上触发了持续LBT失败。
与情况1类似，在情况2下，网络设备可能会先后收到2个MAC PDU，分别包括LBT失败MAC CE1和LBT失败MAC CE2，由于LBT失败MAC CE1和LBT失败MAC CE2中的PCell对应的比特均置为1，网络设备可能会发起PCell上的BWP切换，并认为之前的BWP所在的信道忙碌。
情况3：PCell或PSCell、以及SCell1上都触发了持续LBT失败。
3-1)在时刻t1，PCell或PSCell上有可用于新传输的UL-SCH资源且逻辑信道优先化使这些资源能容纳该LBT失败MAC CE加上其子头，MAC实体将会指示复用与组装过程生成LBT失败MAC CE1，其中SCell1以及PCell或PSCell对应的服务小区索引对应的比特置为1，其他比特置为0。
3-2)在时刻t2，PCell或PSCell上没有可用于新传输的UL-SCH资源或逻辑信道优先化使这些资源不能容纳该LBT失败MAC CE加上其子头，且SCell2有可用于新传的UL-SCH资源且LCP使这些资源能容纳该LBT失败MAC CE加上其子头，MAC实体将会指示复用与组装过程生成LBT失败MAC CE2，其中SCell1以及PCell或PSCell对应的服务小区索引对应的比特置为1，其他比特置为0。
在情况3-2)下，根据PCell或PSCell上是否能够进行LBT失败恢复的BWP切换，可以进一步分为以下情况：
当PCell或PSCell上能够进行LBT失败恢复的BWP切换时，上述情况3-1和上述情况3-2可能先后发生，且包括相应的LBT失败MAC CE的MAC PDU尚未发送，网络设备可能会先后收到2个MAC PDU，分别包括LBT失败MAC CE1和LBT失败MAC CE2，由于LBT失败MAC CE1和LBT失败MAC CE2中的PCell和SCell1对应的比特均置为1，上面情况1和情况2的问题均存在。
当PCell或PSCell上不能进行LBT失败恢复的BWP切换时，上述情况3-1不会 发生，对于PSCell，那么该PSCell上的LBT失败将触发终端设备向PCell所在的网络设备发送指示LBT失败的SCG(Secondary Cell Group，辅小区组)失败信息，在这种情况下，PCell以及PSCell所在的两个网络设备都会收到该LBT失败的信息，并采取不同的行为；对于PCell，那么PCell上的LBT失败将触发连接重建过程，在这种情况下，即便收到来自终端设备的LBT失败指示，网络设备也无法进行处理。
下面结合附图对本发明实施例的各种实施方式进行说明。这些实施方式只是示例性的，不是对本发明的限制。
实施例1
本发明实施例提供了一种LBT失败的处理方法，该方法应用于终端设备侧。
图2是本发明实施例1的LBT失败的处理方法的一示意图，如图2所示，该方法包括：
步骤201：当指示生成LBT失败信息时，取消在该LBT失败信息指示了LBT失败的服务小区中的LBT失败。
因此，当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
在本实施例中，该LBT失败信息指示触发或发生LBT失败的服务小区。例如，该服务小区可以包括包括主小区(PCell)、主辅小区(PSCell)和辅小区(SCell)中的至少一个。
在本实施例中，该服务小区触发或发生的LBT失败也可以称为持续LBT失败。
在本实施例中，低层在一个上行BWP上进行LBT失败检测，并向上层(例如MAC层)指示上行LBT失败；上层利用定时器进行定时，当定时器超时时，重置LBT失败计数器，并通过LBT失败计数器进行计数，当计数值达到最大值时，触发持续LBT失败。
在本实施例中，生成LBT失败信息时，取消相应服务小区里的LBT失败。例如，该LBT失败信息是LBT失败MAC CE，或者包括LBT失败MAC CE的PDU，或者子头指示一个或多个服务小区上LBT失败的PDU。
在本实施例中，LBT失败MAC CE由多个比特构成，各个比特与多个服务小区 的索引对应。其中，发生LBT失败的服务小区的索引所对应的比特被置为1，其他比特置为0。
在本实施例中，如图2所示，该方法还可以包括：
步骤202：当在服务小区中触发了LBT失败且未取消该LBT失败，且满足预设条件时，指示生成LBT失败信息。
在本实施例中，指示生成LBT失败信息可以是指示复用与组装过程(Multiplexing and Assembly)生成该LBT失败信息。
在本实施例中，当指示生成LBT失败信息时，可以是复用与组装过程生成该LBT失败信息。
在本实施例中，服务小区是终端设备配置的服务小区，该服务小区可以包括第一服务小区和/或第二服务小区，例如，第一服务小区是特殊小区(SpCell)，即主小区(PCell)和/或主辅小区(PSCell)，第二服务小区是辅小区(SCell)。该预设条件是第一条件或第二条件。
在步骤202中，当在第一服务小区中触发了LBT失败且未取消该LBT失败，且满足第一条件时，则指示生成第一LBT失败信息；和/或，当在第二服务小区中触发了LBT失败且未取消该LBT失败，且满足第二条件时，则指示生成第二LBT失败信息，并且取消该第二服务小区中的LBT失败。
相应的，在步骤201中，当在第一服务小区中触发了LBT失败且未取消该LBT失败，且满足第一条件时，则指示生成第一LBT失败信息，并取消该第一服务小区中的LBT失败；和/或，当在第二服务小区中触发了LBT失败且未取消该LBT失败，且满足第二条件时，则指示生成第二LBT失败信息，并且取消该第二服务小区中的LBT失败。
在本实施例中，例如，该第一条件是该第一服务小区中有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使该资源能容纳该第一LBT失败信息或者该第一LBT失败信息及其子头，和/或，该第二条件是一个未触发LBT失败的服务小区里有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使该资源能容纳该第二LBT失败信息或者该第二LBT失败信息及其子头。
例如，当第一LBT失败信息和/或第二LBT失败信息是LBT失败MAC CE时，在上述第一条件和第二条件中，使该资源能容纳的是第一LBT失败信息及其子头和/ 或第二LBT失败信息及其子头；当第一LBT失败信息和/或第二LBT失败信息是LBT失败MAC CE的PDU或者子头指示一个或多个服务小区上LBT失败的PDU时，在上述第一条件和第二条件中，使该资源能容纳的是第一LBT失败信息和/或第二LBT失败信息。
例如，该LBT失败信息为LBT失败MAC CE，那么，该第一条件是该第一服务小区中有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使该资源能容纳该LBT失败MAC CE加上其子头，和/或，该第二条件是一个未触发LBT失败的服务小区里有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使该资源能容纳该LBT失败MAC CE加上其子头。
在本实施例中，如图2所示，该方法还可以包括：
步骤203：向网络设备发送该LBT失败信息。
在本实施例中，该LBT失败信息可以通过MAC CE和/或高层消息承载。例如，该高层消息为RRC消息。
假设一个终端设备配置了三个服务小区，即一个第一服务小区和两个第二服务小区，例如，第一服务小区为PCell或PSCell，第二服务小区为SCell1和SCell2。
下面针对以上的假设场景，对于不同的LBT失败的情况分别进行示例性的说明。
图3是本发明实施例1的LBT失败的处理方法的另一示意图，其针对的是一个第二服务小区上先触发了LBT失败，一段时间后第一服务小区上触发了持续LBT失败的情况。如图3所示，该方法包括：
步骤301：当该第二服务小区中触发了LBT失败且未取消该LBT失败，且满足该第二条件时，指示生成第三LBT失败信息，并取消该第二服务小区中的LBT失败。
如图3所示，该方法还包括：
步骤302：当该第一服务小区中触发了LBT失败且未取消该LBT失败，且满足该第一条件时，指示生成第四LBT失败信息，并取消该第一服务小区中的LBT失败，该第四LBT失败信息不包括该第二服务小区发生LBT失败的信息。
例如，该第一服务小区为PCell，该第二服务小区为SCell1。
当SCell1上触发LBT失败，且SCell2或PCell上有可用于新传的UL-SCH资源且LCP使这些资源能容纳该LBT失败MAC CE加上其子头时，MAC实体将会指示复用与组装过程生成LBT失败MAC CE1(作为第三LBT失败信息)，其中SCell1 对应的服务小区索引对应的比特置为1，其他比特置为0。
并且，当MAC实体指示生成作为第三LBT失败信息的LBT失败MAC CE1时，取消在该LBT失败MAC CE1指示了LBT失败的服务小区中的LBT失败，即取消SCell1中的LBT失败。
一段时间后，当PCell上触发了LBT失败时，MAC实体进行BWP切换，并发起随机接入过程；当PCell上有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使这些资源能容纳LBT失败MAC CE加上其子头时，MAC实体将会指示复用与组装过程生成LBT失败MAC CE2(作为第四LBT失败信息)，其中由于SCell1中的LBT失败已经取消，LBT失败MAC CE2中PCell对应的比特置为1，其他(包括SCell1对应的)比特置为0。
这样，在SCell1上先触发了LBT失败，一段时间后PCell上触发了LBT失败的情况下，网络设备对于SCell1和PCell上的LBT失败仅收到一次指示，因此能够基于该指示正确了解信道忙碌情况并采取相应的行为，例如，重新配置辅小区和/或进行BWP切换。
图4是本发明实施例1的LBT失败的处理方法的又一示意图，其针对的是第一服务小区上先触发了LBT失败，一段时间后一个第二服务小区上触发了持续LBT失败的情况。如图4所示，该方法包括：
步骤401：当该第一服务小区中触发了LBT失败且未取消该LBT失败，且满足该第一条件时，指示生成第五LBT失败信息，并取消该第一服务小区中的LBT失败。
如图4所示，该方法还包括：
步骤402：当该第二服务小区中触发了LBT失败且未取消该LBT失败，且满足该第二条件时，指示生成第六LBT失败信息，并取消该第二服务小区中的LBT失败，该第六LBT失败信息不包括该第一服务小区发生LBT失败的信息。
例如，该第一服务小区为PCell，该第二服务小区为SCell1。
当PCell上触发LBT失败时，MAC实体进行BWP切换，并发起随机接入过程；当PCell的目标BWP上有可用于新传的UL-SCH资源且LCP使这些资源能容纳该LBT失败MAC CE加上其子头时，MAC实体将会指示复用与组装过程生成LBT失败MAC CE1(作为第五LBT失败信息)，其中PCell对应的比特置为1，其他比特置为0。
并且，当MAC实体指示生成作为第五LBT失败信息的LBT失败MAC CE1时，取消在该LBT失败MAC CE1指示了LBT失败的服务小区中的持续LBT失败，即取消PCell中的LBT失败。
一段时间后，当SCell1上触发了持续LBT失败，且PCell或SCell2上有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使这些资源能容纳该LBT失败MAC CE加上其子头时，MAC实体将会指示复用与组装过程生成LBT失败MAC CE2(作为第六LBT失败信息)，其中由于PCell中的LBT失败已经取消，LBT失败MAC CE2中SCell1对应的比特置为1，其他(包括PCell对应的)比特置为0。
这样，在PCell上先触发了LBT失败，一段时间后SCell1上触发了LBT失败的情况下，网络设备对于SCell1和PCell上的LBT失败仅收到一次指示，因此能够基于该指示正确了解信道忙碌情况并采取相应的行为，例如，重新配置辅小区和/或进行BWP切换。
图5是本发明实施例1的LBT失败的处理方法的又一示意图，其针对的是第一服务小区和一个第二服务小区上都触发了LBT失败，且该第一服务小区上能够进行LBT失败恢复的BWP切换的情况。如图5所示，该方法包括：
步骤501：当满足该第一条件，或者不满足该第一条件但满足该第二条件时，指示生成第七LBT失败信息，并取消该第一服务小区和该第二服务小区中的LBT失败。
例如，该第一服务小区是PCell或PSCell，该第二服务小区是SCell1。SCell1以及PCell或PSCell上都触发了LBT失败，PCell或PSCell上可进行LBT失败恢复的BWP切换。
对于满足该第一条件的情况：
在时刻t1，PCell或PSCell上有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使这些资源能容纳LBT失败MAC CE加上其子头，MAC实体将会指示复用与组装过程生成LBT失败MAC CE1(作为第七LBT失败信息)，其中SCell1以及PCell或PSCell对应的服务小区索引对应的比特置为1，其他比特置为0。
并且，当MAC实体指示生成作为第七LBT失败信息的LBT失败MAC CE1时，取消在该LBT失败MAC CE1指示了LBT失败的服务小区中的LBT失败，即取消SCell1以及PCell或PSCell中的LBT失败。
对于不满足该第一条件但满足该第二条件的情况：
在时刻t1，PCell或PSCell上没有可用于新传输的UL-SCH资源或逻辑信道优先化(LCP)使这些资源不能容纳LBT失败MAC CE加上其子头，且SCell2有可用于新传的UL-SCH资源且LCP使这些资源能容纳该LBT失败MAC CE加上其子头，MAC实体将会指示复用与组装过程生成LBT失败MAC CE2，其中SCell1以及PCell或PSCell对应的服务小区索引对应的比特置为1，其他比特置为0。
并且，当MAC实体指示生成作为第七LBT失败信息的LBT失败MAC CE2时，取消在该LBT失败MAC CE2指示了LBT失败的服务小区中的LBT失败，即取消SCell1以及PCell或PSCell中的LBT失败。
这样，在SCell1以及PCell或PSCell上都触发了LBT失败，且PCell或PSCell上可进行LBT失败恢复的BWP切换的情况下，网络设备对于SCell1以及PCell或PSCell中的LBT失败仅收到一次指示，因此能够基于该指示正确了解信道忙碌情况并采取相应的行为，例如，重新配置辅小区和/或进行BWP切换。
在本实施例中，对于第一服务小区和一个第二服务小区中均触发了持续LBT失败且未取消该LBT失败，并且，该第一服务小区上不能进行LBT失败恢复的BWP切换的情况，图6是本发明实施例1的LBT失败的处理方法的又一示意图，如图6所示，该方法包括：
步骤601：当指示生成LBT失败信息时，取消在该LBT失败信息指示了LBT失败的服务小区中的LBT失败；
步骤602：MAC实体指示高层取消该服务小区中的LBT失败；
如图6所示，该方法还包括：
步骤603：当取消LBT失败的该服务小区是主辅小区(PSCell)时，该高层基于取消该服务小区中的LBT失败的该指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
步骤604：当取消LBT失败的该服务小区是主小区(PCell)时，该高层基于取消该服务小区中的LBT失败的该指示，停止连接重建过程。
在本实施例中，该高层例如是RRC层。
图7是本发明实施例1的LBT失败的处理方法的又一示意图，其针对的是第一服务小区和一个第二服务小区上都触发了LBT失败，且该第一服务小区上不能进行LBT失败恢复的BWP切换的情况。如图7所示，该方法包括：
步骤701：MAC实体向高层指示该第一服务小区中的LBT失败；
步骤702：当不满足该第一条件但满足该第二条件时，指示生成第八LBT失败信息，并取消该第一服务小区和该第二服务小区中的LBT失败；
步骤703：MAC实体指示高层取消该第一服务小区中的LBT失败。
如图7所示，该方法还包括：
步骤704：当第一服务小区是主辅小区(PSCell)时，该高层基于取消该第一服务小区中的LBT失败的该指示，停止向网络设备发送SCG失败信息；和/或，
步骤705：当第一服务小区为主小区(PCell)时，该高层基于取消该第一服务小区中的LBT失败的该指示，停止连接重建过程。
在本实施例中，可以先执行步骤701，再执行步骤702，也可以先执行步骤702，再执行步骤701。本发明实施例不对步骤701和步骤702的执行顺序进行限制。
例如，对于第一服务小区是主辅小区(PSCell)的情况：PSCell和SCell1上都触发了LBT失败，且PSCell上无法进行LBT失败恢复的BWP切换，例如未配置随机接入资源。在该情况下：
在时刻t1，由于PSCell上无法进行LBT失败恢复的BWP切换，MAC实体向高层，例如RRC层指示该PSCell上的LBT失败。RRC层基于该指示，发起SCG失败信息上报过程，向PCell所在的第一网络设备发送SCG上报信息，指示PSCell上的LBT失败。
在时刻t2，PSCell上没有可用于新传输的UL-SCH资源或逻辑信道优先化(LCP)使这些资源不能容纳LBT失败MAC CE加上其子头，且PSCell和SCell1所在的第二网络设备提供服务的SCell2上有可用于新传的UL-SCH资源且LCP使这些资源能容纳LBT失败MAC CE加上其子头，则MAC实体将会指示复用与组装过程生成LBT失败MAC CE2，其中SCell1和PSCell对应的比特置为1，其他比特置为0。
并且，当MAC实体指示生成作为第八LBT失败信息的LBT失败MAC CE2时，取消在该LBT失败MAC CE2指示了LBT失败的服务小区中的LBT失败，即取消PSCell和SCell1中的LBT失败。
进一步的，MAC实体指示高层，例如RRC层取消PSCell上的持续LBT失败。基于该指示，RRC可以停止向第一网络设备发送SCG失败信息。
这样，在PSCell和SCell1上都触发了持续LBT失败，且PSCell上无法进行LBT 失败恢复的BWP切换的情况下，包括第一网络设备和第二网络设备的网络侧对于SCell1和PSCell上的LBT失败仅收到一次指示，因此能够基于该指示正确了解信道忙碌情况并采取相应的行为，例如，重新配置辅小区和/或进行BWP切换。
另外，对于时刻t2的事件先发生，时刻t1的事件后发生的情况，基于相似的解决方案，包括第一网络设备和第二网络设备的网络侧对于SCell1和PSCell上的LBT失败仅收到一次指示，因此能够基于该指示正确了解信道忙碌情况并采取相应的行为，例如，重新配置辅小区和/或进行BWP切换。
又例如，对于第一服务小区是主小区(PCell)的情况：PCell和SCell1上都触发了LBT失败，且PCell上无法进行LBT失败恢复的BWP切换，例如未配置随机接入资源。在该情况下：
在时刻t1，由于PCell上无法进行LBT失败恢复的BWP切换，MAC实体向高层，例如RRC指示该PCell上LBT失败。RRC层基于该指示，发起连接重建过程。
在时刻t2，PCell上没有可用于新传输的UL-SCH资源或逻辑信道优先化(LCP)使这些资源不能容纳LBT失败MAC CE加上其子头，且PCell和SCell所在的第一网络设备提供服务的SCell2有可用于新传的UL-SCH资源且LCP使这些资源能容纳该LBT失败MAC CE加上其子头，MAC实体将会指示复用与组装过程生成LBT失败MAC CE2，其中SCell1和PCell对应的比特置为1，其他比特置为0。
并且，当MAC实体指示生成作为第八LBT失败信息的LBT失败MAC CE2时，取消在该LBT失败MAC CE2指示了LBT失败的服务小区中的LBT失败，即取消PCell和SCell1中的LBT失败。
进一步的，MAC实体指示高层，例如RCC层取消PCell上的持续LBT失败。基于该指示，RRC层停止连接重建过程。
这样，在PCell和SCell1上都触发了持续LBT失败，且PCell上无法进行LBT失败恢复的BWP切换的情况下，第一网络设备对于SCell1和PCell上的LBT失败仅收到一次指示，因此能够基于该指示正确了解信道忙碌情况并采取相应的行为，例如，重新配置辅小区和/或进行BWP切换。
对于时刻t2的事件先发生，时刻t1的事件后发生的情况，基于相似的解决方案，第一网络设备对于SCell1和PCell上的LBT失败仅收到一次指示，因此能够基于该指示正确了解信道忙碌情况并采取相应的行为，例如，重新配置辅小区和/或进行BWP 切换。
在本实施例中，对于第一服务小区中触发了LBT失败而指示生成的第一LBT失败信息，其是第四LBT失败信息、第五LBT失败信息、第七LBT失败信息以及第八LBT失败信息中的一个。
对于第二服务小区中触发了LBT失败而指示生成第二LBT失败信息，其是第三LBT失败信息、第六LBT失败信息、第七LBT失败信息以及第八LBT失败信息中的一个。
由上述实施例可知，当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
实施例2
本发明实施例提供了一种LBT失败的处理方法，该方法应用于终端设备侧。
图8本发明实施例2的LBT失败的处理方法的一示意图。如图8所示，该方法包括：
步骤801：MAC实体指示高层取消服务小区中的LBT失败。
例如，当MAC取消了一个服务小区中的LBT失败时，MAC实体向高层进行指示。
如图8所示，该方法还包括：
步骤802：当取消LBT失败的该服务小区是主辅小区(PSCell)时，该高层基于取消该服务小区中的LBT失败的该指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
步骤803：当取消LBT失败的该服务小区是主小区(PCell)时，该高层基于取消该服务小区中的LBT失败的该指示，停止连接重建过程。
在本实施例中，该高层例如为RRC层。
例如，PSCell和SCell1上都触发了LBT失败，且PSCell上无法进行LBT失败恢复的BWP切换，例如未配置随机接入资源，在该情况下：
在时刻t1，由于PSCell上无法进行LBT失败恢复的BWP切换，MAC实体向高层，例如RRC层指示该PSCell上的LBT失败。RRC层基于该指示，发起SCG失败 信息上报过程，向PCell所在的第一网络设备发送SCG上报信息，指示PSCell上的LBT失败。
进一步的，MAC实体指示高层，例如RRC层取消PSCell上的持续LBT失败。基于该指示，RRC可以停止向第一网络设备发送SCG失败信息。
又例如，PCell和SCell1上都触发了LBT失败，且PCell上无法进行LBT失败恢复的BWP切换，例如未配置随机接入资源，在该情况下：
由于PCell上无法进行LBT失败恢复的BWP切换，MAC实体向高层，例如RRC指示该PCell上LBT失败。RRC层基于该指示，发起连接重建过程。
进一步的，MAC实体指示高层，例如RCC层取消PCell上的持续LBT失败。基于该指示，RRC层停止连接重建过程。
由上述实施例可知，MAC实体指示高层取消服务小区中的LBT失败，从而停止向网络设备发送辅小区组(SCG)失败信息或停止连接重建过程，这样，能够避免触发无线链路宣告，从而避免或停止终端侧自主恢复过程；或者能够停止终端侧自主恢复过程。继而避免不必要的业务中断。
实施例3
本发明实施例提供了一种LBT失败的处理方法，该方法应用于网络设备侧，其对应于实施例1所述的应用于终端设备侧的LBT失败的处理方法，相同的内容不再重复说明。
图9本发明实施例3的LBT失败的处理方法的一示意图。如图9所示，该方法包括：
步骤901：从终端设备接收LBT失败信息，该LBT失败信息指示服务小区中触发的LBT失败。
在本实施例中，该服务小区包括主小区(PCell)、主辅小区(PSCell)和辅小区(SCell)中的至少一个。
在本实施例中，该LBT失败信息通过MAC CE和/或高层消息承载。
例如，该高层消息为RRC消息。
在本实施例中，例如，该LBT失败信息是LBT失败MAC CE，或者包括LBT失败MAC CE的PDU，或者子头指示一个或多个服务小区上LBT失败的PDU。
如图9所示，该方法还可以包括：
步骤902：根据该LBT失败信息，重新配置辅小区和/或进行BWP切换。
在本实施例中，该LBT失败信息的具体内容以及生成的条件、以及网络设备根据根据该LBT失败信息重新配置辅小区和/或进行BWP切换的具体过程可以参见实施例1中的记载，此处不再重复说明。
由上述实施例可知，当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
实施例4
本发明实施例提供了一种LBT失败的处理方法，该方法应用于网络设备侧和终端设备侧，其对应于实施例1所述的应用于终端设备侧的LBT失败的处理方法和实施例3所述的应用于网络设备侧的LBT失败的处理方法，相同的内容不再重复说明。
图10是本发明实施例4的LBT失败的处理方法的一示意图。如图10所示，该方法包括：
步骤1001：终端设备当指示生成LBT失败信息时，取消在该LBT失败信息指示了LBT失败的服务小区中的LBT失败；
步骤1002：终端设备向网络设备发送该LBT失败信息；
步骤1003：网络设备根据该LBT失败信息，重新配置辅小区和/或进行BWP切换。
在本实施例中，步骤1001至步骤1003的具体实施可以参照实施例1和实施例3的记载，此处不再重复说明。
由上述实施例可知，当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
实施例5
本发明实施例提供了一种LBT失败的处理装置，该装置配置于终端设备侧。由于该装置解决问题的原理与实施例1的方法类似，因此其具体的实施可以参照实施例1所述的方法的实施，内容相同或相关之处不再重复说明。
图11是本发明实施例5的LBT失败的处理装置的一示意图，如图11所示，装置1100包括：
第一取消单元1101，其用于当指示生成LBT失败信息时，取消在该LBT失败信息指示了LBT失败的服务小区中的LBT失败。
在本实施例中，第一取消单元1101当在第一服务小区中触发了LBT失败且未取消该LBT失败，且满足第一条件时，则指示生成第一LBT失败信息，并取消该第一服务小区中的LBT失败；和/或，当在第二服务小区中触发了LBT失败且未取消该LBT失败，且满足第二条件时，则指示生成第二LBT失败信息，并且取消该第二服务小区中的LBT失败。
如图11所示，装置1100还包括：
指示单元1102，其用于当在服务小区中触发了LBT失败且未取消该LBT失败，且满足预设条件时，指示生成LBT失败信息；以及
第一发送单元1103，其用于向网络设备发送该LBT失败信息。
图12是本发明实施例5的LBT失败的处理装置的另一示意图，其针对的是一个第二服务小区上先触发了LBT失败，一段时间后第一服务小区上触发了持续LBT失败的情况。如图12所示，装置1200包括：
第二取消单元1201，其用于当第二服务小区中触发了LBT失败且未取消该LBT失败，且满足第二条件时，指示生成第三LBT失败信息，并取消所该第二服务小区中的LBT失败；以及
第二指示单元1202，其用于当第一服务小区中触发了LBT失败且未取消该LBT失败，且满足第一条件时，指示生成第四LBT失败信息，并取消该第一服务小区中的LBT失败，该第四LBT失败信息不包括所述第二服务小区发生LBT失败的信息。
图13是本发明实施例5的LBT失败的处理装置的又一示意图，其针对的是第一服务小区上先触发了LBT失败，一段时间后一个第二服务小区上触发了持续LBT失败的情况。如图13所示，装置1300包括：
第三取消单元1301，其用于当第一服务小区中触发了LBT失败且未取消该LBT失败，且满足第一条件时，指示生成第五LBT失败信息，并取消该第一服务小区中的LBT失败；以及
第三指示单元1302，其用于当第二服务小区中触发了LBT失败且未取消该LBT 失败，且满足第二条件时，指示生成第六LBT失败信息，并取消该第二服务小区中的LBT失败，该第六LBT失败信息不包括该第一服务小区发生LBT失败的信息。
图14是本发明实施例5的LBT失败的处理装置的又一示意图，其针对的是第一服务小区和一个第二服务小区上都触发了LBT失败，且该第一服务小区上能够进行LBT失败恢复的BWP切换的情况。如图14所示，装置1400包括：
第四取消单元1401，其用于当满足第一条件，或者不满足第一条件但满足第二条件时，指示生成第七LBT失败信息，并取消该第一服务小区和该第二服务小区中的LBT失败。
在本实施例中，对于第一服务小区和一个第二服务小区中均触发了持续LBT失败且未取消该LBT失败，并且，该第一服务小区上不能进行LBT失败恢复的BWP切换的情况，图15是本发明实施例5的LBT失败的处理装置的又一示意图，如图15所示，装置1500包括：
取消单元1501，其用于当指示生成LBT失败信息时，取消在该LBT失败信息指示了LBT失败的服务小区中的LBT失败；
第一指示单元1502，其用于MAC实体指示高层取消该服务小区中的LBT失败；以及
第一停止单元1503，其用于当取消LBT失败的该服务小区是主辅小区(PSCell)时，该高层基于取消该服务小区中的LBT失败的该指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
第二停止单元1504，其用于当取消LBT失败的该服务小区是主小区(PCell)时，该高层基于取消该服务小区中的LBT失败的该指示，停止连接重建过程。
图16是本发明实施例5的LBT失败的处理方法的又一示意图，其针对的是第一服务小区和一个第二服务小区上都触发了LBT失败，且该第一服务小区上不能进行LBT失败恢复的BWP切换的情况。如图16所示，装置1600包括：
第四指示单元1601，其用于MAC实体向高层指示该第一服务小区中的LBT失败；
第五取消单元1602，其用于当不满足该第一条件但满足该第二条件时，指示生成第八LBT失败信息，并取消该第一服务小区和该第二服务小区中的LBT失败；
第六取消单元1603，其用于MAC实体指示高层取消该第一服务小区中的LBT 失败。
如图16所示，装置1600还包括：
第三停止单元1604，其用于当该第一服务小区是主辅小区(PSCell)时，该高层基于取消该第一服务小区中的LBT失败的该指示，停止向网络设备发送SCG失败信息；和/或，
第四停止单元1605，其用于当该第一服务小区为主小区(PCell)时，该高层基于取消该第一服务小区中的LBT失败的该指示，停止连接重建过程。
在本实施例中，上述各个单元的功能的实现可以参照实施例1中相关步骤的内容，此处不再重复说明。
由上述实施例可知，当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
实施例6
本发明实施例提供了一种LBT失败的处理装置，该装置配置于终端设备侧。由于该装置解决问题的原理与实施例2的方法类似，因此其具体的实施可以参照实施例2所述的方法的实施，内容相同或相关之处不再重复说明。
图17是本发明实施例6的LBT失败的处理装置的一示意图，如图17所示，装置1700包括：
第五指示单元1701，其用于MAC实体指示高层取消服务小区中的LBT失败。
例如，当MAC取消了一个服务小区中的LBT失败时，MAC实体向高层进行指示。
如图17所述，装置1700还包括：
第五停止单元1702，其用于当取消LBT失败的该服务小区是主辅小区(PSCell)时，该高层基于取消该服务小区中的LBT失败的该指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
第六停止单元1703，其用于当取消LBT失败的该服务小区是主小区(PCell)时，该高层基于取消该服务小区中的LBT失败的该指示，停止连接重建过程。
由上述实施例可知，MAC实体指示高层取消服务小区中的LBT失败，从而停止 向网络设备发送辅小区组(SCG)失败信息或停止连接重建过程，这样，能够避免触发无线链路宣告，从而避免或停止终端侧自主恢复过程；或者能够停止终端侧自主恢复过程。继而避免不必要的业务中断。
实施例7
本发明实施例提供了一种LBT失败的处理装置，该装置配置于网络设备侧。由于该装置解决问题的原理与实施例3的方法类似，因此其具体的实施可以参照实施例3所述的方法的实施，内容相同或相关之处不再重复说明。
图18是本发明实施例7的LBT失败的处理装置的一示意图，如图18所示，装置1800包括：
第一接收单元1801，其用于从终端设备接收LBT失败信息，该LBT失败信息指示服务小区中触发的LBT失败。
如图18所示，装置1800还可以包括：
第一处理单元1802，其用于根据该LBT失败信息，重新配置辅小区和/或进行BWP切换。
在本实施例中，该LBT失败信息的具体内容以及生成的条件、以及网络设备根据根据该LBT失败信息重新配置辅小区和/或进行BWP切换的具体过程可以参见实施例1中的记载，此处不再重复说明。
由上述实施例可知，当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
实施例8
本发明实施例提供了一种终端设备，该终端设备包括如实施例5或实施例6所述的LBT失败的处理装置。
图19是本发明实施例8的终端设备的系统构成的一示意框图。如图19所示，终端设备1900可以包括处理器1910和存储器1920；存储器1920耦合到处理器1910。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
在一个实施方式中，LBT失败的处理装置的功能可以被集成到处理器1910中。
对应于实施例5，处理器1910可以被配置为：当指示生成LBT失败信息时，取消在该LBT失败信息指示了LBT失败的服务小区中的LBT失败，
对应于实施例6，处理器1910可以被配置为：MAC实体指示高层取消服务小区中的LBT失败。
在另一个实施方式中，LBT失败的处理装置可以与处理器1910分开配置，例如可以将LBT失败的处理装置配置为与处理器1910连接的芯片，通过处理器1910的控制来实现LBT失败的处理装置的功能。
如图19所示，终端设备1900还可以包括：通信模块1930、输入单元1940、显示器1950、电源1960。值得注意的是，终端设备1900也并不是必须要包括图19中所示的所有部件；此外，终端设备1900还可以包括图19中没有示出的部件，可以参考相关技术。
如图19所示，处理器1910有时也称为控制器或操作控件，可以包括微处理器或其他处理器装置和/或逻辑装置，该处理器1910接收输入并控制终端设备1900的各个部件的操作。
其中，存储器1920，例如可以是缓存器、闪存、硬驱、可移动介质、易失性存储器、非易失性存储器或其它合适装置中的一种或更多种。可储存各种数据，此外还可存储执行有关信息的程序。并且处理器1910可执行该存储器1920存储的该程序，以实现信息存储或处理等。其他部件的功能与现有类似，此处不再赘述。终端设备1900的各部件可以通过专用硬件、固件、软件或其结合来实现，而不偏离本发明的范围。
由上述实施例可知，当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
实施例9
本发明实施例提供了一种网络设备，该网络设备包括如实施例7所述的LBT失败的处理装置。
图20是本发明实施例9的网络设备的系统构成的一示意框图。如图20所示，网络设备2000可以包括：处理器(processor)2010和存储器2020；存储器2020耦合 到处理器2010。其中该存储器2020可存储各种数据；此外还存储信息处理的程序2030，并且在处理器2010的控制下执行该程序2030，以接收终端设备发送的各种信息、并且向终端设备发送各种信息。
在一个实施方式中，LBT失败的处理装置的功能可以被集成到处理器2010中。其中，处理器2010可以被配置为：从终端设备接收LBT失败信息，该LBT失败信息指示服务小区中触发的LBT失败。
在另一个实施方式中，LBT失败的处理装置可以与处理器2010分开配置，例如可以将LBT失败的处理装置配置为与处理器2010连接的芯片，通过处理器2010的控制来实现LBT失败的处理装置的功能。
此外，如图20所示，网络设备2000还可以包括：收发机2040和天线2050等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备2000也并不是必须要包括图20中所示的所有部件；此外，网络设备2000还可以包括图20中没有示出的部件，可以参考现有技术。
由上述实施例可知，当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败，这样，终端设备不会向网络设备多次指示某个服务小区上发生的LBT失败，从而避免不必要的网络侧发起的BWP切换和/或辅小区重配置，从而能够保证NR-U信道的有效利用。
实施例10
本发明实施例提供了一种通信系统，包括根据实施例8所述的终端设备和/或根据实施例9所述的网络设备。
例如，该通信系统的结构可以参照图1，如图1所示，通信系统100包括网络设备101和终端设备102，终端设备102与实施例8中记载的终端设备相同，网络设备101与实施例9中记载的网络设备相同，重复的内容不再赘述。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。逻辑部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模 块或二者组合。例如，图11中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图2中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图11中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本发明所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图11描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。
根据本发明实施例公开的各种实施方式，还公开了如下附记：
1、一种LBT失败的处理装置，所述装置应用于终端设备侧，所述装置包括：
第一取消单元，其用于当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败。
2、根据附记1所述的装置，其中，
所述服务小区包括主小区(PCell)、主辅小区(PSCell)和辅小区(SCell)中的至少一个。
3、根据附记1所述的装置，其中，
所述LBT失败信息通过MAC CE和/或高层消息承载。
4、根据附记3所述的装置，其中，
所述高层消息为RRC消息。
5、根据附记1所述的装置，其中，所述指示生成LBT失败信息，包括：
指示复用与组装过程生成所述LBT失败信息。
6、根据附记1、3、5中的任一项所述的装置，其中，
所述LBT失败信息是LBT失败MAC CE，或者包括LBT失败MAC CE的PDU，或者子头指示一个或多个服务小区上LBT失败的PDU。
7、根据附记1所述的装置，其中，所述装置还包括：
第一指示单元，其用于MAC实体指示高层取消所述服务小区中的LBT失败。
8、根据附记7所述的装置，其中，所述装置还包括：
第一停止单元，其用于当取消LBT失败的所述服务小区是主辅小区(PSCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
第二停止单元，其用于当取消LBT失败的所述服务小区是主小区(PCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止连接重建过程。
9、根据附记1所述的装置，其中，所述第一取消单元用于，
当在第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足第一条件时，则指示生成第一LBT失败信息，并取消所述第一服务小区中的LBT失败；和/或，
当在第二服务小区中触发了LBT失败且未取消所述LBT失败，且满足第二条件时，则指示生成第二LBT失败信息，并且取消所述第二服务小区中的LBT失败。
10、根据附记9所述的装置，其中，
所述第一取消单元包括：
第二取消单元，其用于当所述第二服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第二条件时，指示生成第三LBT失败信息，并取消所述第二服务小区中的LBT失败。
11、根据附记10所述的装置，其中，所述装置还包括：
第二指示单元，其用于当所述第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第一条件时，指示生成第四LBT失败信息，并取消所述第一服务小区中的LBT失败，所述第四LBT失败信息不包括所述第二服务小区发生LBT失败的信息。
12、根据附记9所述的装置，其中，
所述第一取消单元包括：
第三取消单元，其用于当所述第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第一条件时，指示生成第五LBT失败信息，并取消所述第一服务小区中的LBT失败。
13、根据附记12所述的装置，其中，所述装置还包括：
第三指示单元，其用于当所述第二服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第二条件时，指示生成第六LBT失败信息，并取消所述第二服务小区中的LBT失败，所述第六LBT失败信息不包括所述第一服务小区发生LBT失败的信息。
14、根据附记9所述的装置，其中，
所述第一服务小区和所述第二服务小区中均触发了LBT失败且未取消所述LBT失败，并且，所述第一服务小区上能够进行LBT失败恢复的BWP切换，
所述第一取消单元包括：
第四取消单元，其用于当满足所述第一条件，或者不满足所述第一条件但满足所述第二条件时，指示生成第七LBT失败信息，并取消所述第一服务小区和所述第二服务小区中的LBT失败。
15、根据附记9所述的装置，其中，
所述第一服务小区和所述第二服务小区中均触发了持续LBT失败且未取消所述LBT失败，并且，所述第一服务小区上不能进行LBT失败恢复的BWP切换，
所述装置还包括：
第四指示单元，其用于MAC实体向高层指示所述第一服务小区中的LBT失败；
第一取消单元包括：第五取消单元，其用于当不满足所述第一条件但满足所述第二条件时，指示生成第八LBT失败信息，并取消所述第一服务小区和所述第二服务小区中的LBT失败；
所述装置还包括：
第六取消单元，其用于MAC实体指示高层取消所述第一服务小区中的LBT失败。
16、根据附记15所述的装置，其中，所述装置还包括：
第三停止单元，其用于当所述第一服务小区是主辅小区(PSCell)时，所述高层基于取消所述第一服务小区中的LBT失败的所述指示，停止向网络设备发送SCG失败信息；和/或，
第四停止单元，其用于当所述第一服务小区为主小区(PCell)时，所述高层基于取消所述第一服务小区中的LBT失败的所述指示，停止连接重建过程。
17、根据附记9-16中的任一项所述的装置，其中，
所述第一条件是所述第一服务小区中有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使所述资源能容纳所述第一LBT失败信息及其子头，和/或
所述第二条件是一个未触发LBT失败的服务小区里有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使所述资源能容纳所述第二LBT失败信息及其子头。
18、根据附记7、8、15、16中的任一项所述的装置，其中，
所述高层为RRC层。
19、根据附记1所述的装置，其中，所述装置还包括：
第一发送单元，其用于向网络设备发送所述LBT失败信息。
20、一种LBT失败的处理装置，所述装置应用于终端设备侧，所述装置包括：
第五指示单元，其用于MAC实体指示高层取消服务小区中的LBT失败。
21、根据附记20所述的装置，其中，
当取消了一个服务小区中的LBT失败时，MAC实体向高层进行所述指示。
22、根据附记20或21所述的装置，其中，所述装置还包括：
第五停止单元，其用于当取消LBT失败的所述服务小区是主辅小区(PSCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
第六停止单元，其用于当取消LBT失败的所述服务小区是主小区(PCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止连接重建过程。
23、根据附记20-22中任一项所述的装置，其中，
所述高层为RRC层。
24、一种LBT失败的处理装置，所述装置应用于网络设备侧，所述装置包括：
第一接收单元，其用于从终端设备接收LBT失败信息，
所述LBT失败信息指示服务小区中触发的LBT失败。
25、根据附记24所述的装置，其中，
所述服务小区包括主小区(PCell)、主辅小区(PSCell)和辅小区(SCell)中的至少一个。
26、根据附记24所述的装置，其中，
所述LBT失败信息通过MAC CE和/或高层消息承载。
27、根据附记26所述的装置，其中，
所述高层消息为RRC消息。
28、根据附记24所述的装置，其中，
所述LBT失败信息是LBT失败MAC CE，或者包括LBT失败MAC CE的PDU，或者子头指示一个或多个服务小区上LBT失败的PDU。
29、一种终端设备，所述终端设备包括根据附记1-23中的任一项所述的装置。
30、一种网络设备，所述网络设备包括根据附记24-28中的任一项所述的装置。
31、一种通信系统，所述通信系统包括根据附记29所述的终端设备和/或附记30所述的网络设备。
32、一种LBT失败的处理方法，所述方法应用于终端设备侧，所述方法包括：
当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败。
33、根据附记32所述的方法，其中，
所述服务小区包括主小区(PCell)、主辅小区(PSCell)和辅小区(SCell)中的至少一个。
34、根据附记32所述的方法，其中，
所述LBT失败信息通过MAC CE和/或高层消息承载。
35、根据附记34所述的方法，其中，
所述高层消息为RRC消息。
36、根据附记32所述的方法，其中，所述指示生成LBT失败信息，包括：
指示复用与组装过程生成所述LBT失败信息。
37、根据附记32、34、36中的任一项所述的方法，其中，
所述LBT失败信息是LBT失败MAC CE，或者包括LBT失败MAC CE的PDU，或者子头指示一个或多个服务小区上LBT失败的PDU。
38、根据附记32所述的方法，其中，所述方法还包括：
MAC实体指示高层取消所述服务小区中的LBT失败。
39、根据附记38所述的方法，其中，所述方法还包括：
当取消LBT失败的所述服务小区是主辅小区(PSCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
当取消LBT失败的所述服务小区是主小区(PCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止连接重建过程。
40、根据附记32所述的方法，其中，
当在第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足第一条件时，则指示生成第一LBT失败信息，并取消所述第一服务小区中的LBT失败；和/或，
当在第二服务小区中触发了LBT失败且未取消所述LBT失败，且满足第二条件时，则指示生成第二LBT失败信息，并且取消所述第二服务小区中的LBT失败。
41、根据附记40所述的方法，其中，
当所述第二服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第二条件时，指示生成第三LBT失败信息，并取消所述第二服务小区中的LBT失败。
42、根据附记41所述的方法，其中，所述方法还包括：
当所述第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第一条件时，指示生成第四LBT失败信息，并取消所述第一服务小区中的LBT失败，所述第四LBT失败信息不包括所述第二服务小区发生LBT失败的信息。
43、根据附记40所述的方法，其中，
当所述第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第一条件时，指示生成第五LBT失败信息，并取消所述第一服务小区中的LBT失败。
44、根据附记43所述的方法，其中，所述方法还包括：
当所述第二服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第二条件时，指示生成第六LBT失败信息，并取消所述第二服务小区中的LBT失败，所述第六LBT失败信息不包括所述第一服务小区发生LBT失败的信息。
45、根据附记40所述的方法，其中，
所述第一服务小区和所述第二服务小区中均触发了LBT失败且未取消所述LBT失败，并且，所述第一服务小区上能够进行LBT失败恢复的BWP切换，
当满足所述第一条件，或者不满足所述第一条件但满足所述第二条件时，指示生成第七LBT失败信息，并取消所述第一服务小区和所述第二服务小区中的LBT失败。
46、根据附记40所述的方法，其中，
所述第一服务小区和所述第二服务小区中均触发了持续LBT失败且未取消所述LBT失败，并且，所述第一服务小区上不能进行LBT失败恢复的BWP切换，
所述方法还包括：
MAC实体向高层指示所述第一服务小区中的LBT失败；
当不满足所述第一条件但满足所述第二条件时，指示生成第八LBT失败信息，并取消所述第一服务小区和所述第二服务小区中的LBT失败；
MAC实体指示高层取消所述第一服务小区中的LBT失败。
47、根据附记46所述的方法，其中，所述方法还包括：
当所述第一服务小区是主辅小区(PSCell)时，所述高层基于取消所述第一服务小区中的LBT失败的所述指示，停止向网络设备发送SCG失败信息；和/或，
当所述第一服务小区为主小区(PCell)时，所述高层基于取消所述第一服务小区中的LBT失败的所述指示，停止连接重建过程。
48、根据附记40-47中的任一项所述的方法，其中，
所述第一条件是所述第一服务小区中有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使所述资源能容纳所述第一LBT失败信息及其子头，和/或
所述第二条件是一个未触发LBT失败的服务小区里有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使所述资源能容纳所述第二LBT失败信息及其子头。
49、根据附记38、39、46、47中的任一项所述的方法，其中，
所述高层为RRC层。
50、根据附记32所述的方法，其中，所述方法还包括：
向网络设备发送所述LBT失败信息。
51、一种LBT失败的处理方法，所述方法应用于终端设备侧，所述方法包括：
MAC实体指示高层取消服务小区中的LBT失败。
52、根据附记51所述的方法，其中，
当取消了一个服务小区中的LBT失败时，MAC实体向高层进行所述指示。
53、根据附记51或52所述的方法，其中，所述方法还包括：
当取消LBT失败的所述服务小区是主辅小区(PSCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
当取消LBT失败的所述服务小区是主小区(PCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止连接重建过程。
54、根据附记51-53中任一项所述的方法，其中，
所述高层为RRC层。
55、一种LBT失败的处理方法，所述方法应用于网络设备侧，所述方法包括：
从终端设备接收LBT失败信息，
所述LBT失败信息指示服务小区中触发的LBT失败。
56、根据附记55所述的方法，其中，
所述服务小区包括主小区(PCell)、主辅小区(PSCell)和辅小区(SCell)中的至少一个。
57、根据附记55所述的方法，其中，
所述LBT失败信息通过MAC CE和/或高层消息承载。
58、根据附记57所述的方法，其中，
所述高层消息为RRC消息。
59、根据附记55所述的方法，其中，
所述LBT失败信息是LBT失败MAC CE，或者包括LBT失败MAC CE的PDU，或者子头指示一个或多个服务小区上LBT失败的PDU。

Claims (20)

  1. 一种LBT失败的处理装置，所述装置应用于终端设备侧，所述装置包括：
    第一取消单元，其用于当指示生成LBT失败信息时，取消在所述LBT失败信息指示了LBT失败的服务小区中的LBT失败。
  2. 根据权利要求1所述的装置，其中，
    所述LBT失败信息通过MAC CE和/或高层消息承载。
  3. 根据权利要求1所述的装置，其中，所述指示生成LBT失败信息，包括：
    指示复用与组装过程生成所述LBT失败信息。
  4. 根据权利要求1所述的装置，其中，
    所述LBT失败信息是LBT失败MAC CE，或者包括LBT失败MAC CE的PDU，或者子头指示一个或多个服务小区上LBT失败的PDU。
  5. 根据权利要求1所述的装置，其中，所述装置还包括：
    第一指示单元，其用于MAC实体指示高层取消所述服务小区中的LBT失败。
  6. 根据权利要求5所述的装置，其中，所述装置还包括：
    第一停止单元，其用于当取消LBT失败的所述服务小区是主辅小区(PSCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
    第二停止单元，其用于当取消LBT失败的所述服务小区是主小区(PCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止连接重建过程。
  7. 根据权利要求1所述的装置，其中，所述第一取消单元用于，
    当在第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足第一条件时，则指示生成第一LBT失败信息，并取消所述第一服务小区中的LBT失败；和/或，
    当在第二服务小区中触发了LBT失败且未取消所述LBT失败，且满足第二条件时，则指示生成第二LBT失败信息，并且取消所述第二服务小区中的LBT失败。
  8. 根据权利要求7所述的装置，其中，
    所述第一取消单元包括：
    第二取消单元，其用于当所述第二服务小区中触发了LBT失败且未取消所述 LBT失败，且满足所述第二条件时，指示生成第三LBT失败信息，并取消所述第二服务小区中的LBT失败。
  9. 根据权利要求8所述的装置，其中，所述装置还包括：
    第二指示单元，其用于当所述第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第一条件时，指示生成第四LBT失败信息，并取消所述第一服务小区中的LBT失败，所述第四LBT失败信息不包括所述第二服务小区发生LBT失败的信息。
  10. 根据权利要求7所述的装置，其中，
    所述第一取消单元包括：
    第三取消单元，其用于当所述第一服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第一条件时，指示生成第五LBT失败信息，并取消所述第一服务小区中的LBT失败。
  11. 根据权利要求10所述的装置，其中，所述装置还包括：
    第三指示单元，其用于当所述第二服务小区中触发了LBT失败且未取消所述LBT失败，且满足所述第二条件时，指示生成第六LBT失败信息，并取消所述第二服务小区中的LBT失败，所述第六LBT失败信息不包括所述第一服务小区发生LBT失败的信息。
  12. 根据权利要求7所述的装置，其中，
    所述第一服务小区和所述第二服务小区中均触发了LBT失败且未取消所述LBT失败，并且，所述第一服务小区上能够进行LBT失败恢复的BWP切换，
    所述第一取消单元包括：
    第四取消单元，其用于当满足所述第一条件，或者不满足所述第一条件但满足所述第二条件时，指示生成第七LBT失败信息，并取消所述第一服务小区和所述第二服务小区中的LBT失败。
  13. 根据权利要求7所述的装置，其中，
    所述第一服务小区和所述第二服务小区中均触发了持续LBT失败且未取消所述LBT失败，并且，所述第一服务小区上不能进行LBT失败恢复的BWP切换，
    所述装置还包括：
    第四指示单元，其用于MAC实体向高层指示所述第一服务小区中的LBT失败；
    第一取消单元包括：第五取消单元，其用于当不满足所述第一条件但满足所述第二条件时，指示生成第八LBT失败信息，并取消所述第一服务小区和所述第二服务小区中的LBT失败；
    所述装置还包括：
    第六取消单元，其用于MAC实体指示高层取消所述第一服务小区中的LBT失败。
  14. 根据权利要求13所述的装置，其中，所述装置还包括：
    第三停止单元，其用于当所述第一服务小区是主辅小区(PSCell)时，所述高层基于取消所述第一服务小区中的LBT失败的所述指示，停止向网络设备发送SCG失败信息；和/或，
    第四停止单元，其用于当所述第一服务小区为主小区(PCell)时，所述高层基于取消所述第一服务小区中的LBT失败的所述指示，停止连接重建过程。
  15. 根据权利要求7所述的装置，其中，
    所述第一条件是所述第一服务小区中有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使所述资源能容纳所述第一LBT失败信息及其子头，和/或
    所述第二条件是一个未触发LBT失败的服务小区里有可用于新传输的UL-SCH资源且逻辑信道优先化(LCP)使所述资源能容纳所述第二LBT失败信息及其子头。
  16. 一种LBT失败的处理装置，所述装置应用于终端设备侧，所述装置包括：
    第五指示单元，其用于MAC实体指示高层取消服务小区中的LBT失败。
  17. 根据权利要求16所述的装置，其中，
    当取消了一个服务小区中的LBT失败时，MAC实体向高层进行所述指示。
  18. 根据权利要求16所述的装置，其中，所述装置还包括：
    第五停止单元，其用于当取消LBT失败的所述服务小区是主辅小区(PSCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止向网络设备发送辅小区组(SCG)失败信息；和/或，
    第六停止单元，其用于当取消LBT失败的所述服务小区是主小区(PCell)时，所述高层基于取消所述服务小区中的LBT失败的所述指示，停止连接重建过程。
  19. 一种LBT失败的处理装置，所述装置应用于网络设备侧，所述装置包括：
    第一接收单元，其用于从终端设备接收LBT失败信息，
    所述LBT失败信息指示服务小区中触发的LBT失败。
  20. 根据权利要求19所述的装置，其中，
    所述LBT失败信息是LBT失败MAC CE，或者包括LBT失败MAC CE的PDU，或者子头指示一个或多个服务小区上LBT失败的PDU。
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