WO2020221172A1 - 一种信道接入方法及装置 - Google Patents

一种信道接入方法及装置 Download PDF

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Publication number
WO2020221172A1
WO2020221172A1 PCT/CN2020/087058 CN2020087058W WO2020221172A1 WO 2020221172 A1 WO2020221172 A1 WO 2020221172A1 CN 2020087058 W CN2020087058 W CN 2020087058W WO 2020221172 A1 WO2020221172 A1 WO 2020221172A1
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WO
WIPO (PCT)
Prior art keywords
channel access
terminal device
counting
unit
access process
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PCT/CN2020/087058
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English (en)
French (fr)
Inventor
酉春华
黄曲芳
郭英昊
娄崇
赵力
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华为技术有限公司
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Publication of WO2020221172A1 publication Critical patent/WO2020221172A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • This application relates to the field of communication technology, and in particular to a channel access method and device.
  • LTE Long Term Evolution
  • NR new radio
  • the channel access process can also be called the listen Before Talk (LBT) process, which is collectively referred to as the channel access process below.
  • LBT listen Before Talk
  • the communication device randomly selects a value A in a contention window, and only after detecting at least A free time slots Make sure that the channel is in an idle state so that the channel can be occupied, otherwise it needs to compete for the channel again.
  • the idle time slot means that in a time slot, the energy of the signal detected in the channel is lower than the preset threshold.
  • Method 2 Based on the channel access process of a fixed duration, the communication device detects a fixed duration. If the energy of the signal detected in the channel is lower than the preset threshold within the fixed duration, the channel is considered to be in an idle state and can be occupied Channel, otherwise you need to compete for the channel again.
  • the terminal device may continue to perform the channel access process until the channel access process is completed.
  • the terminal device may continue to perform the channel access process until the channel access process is completed.
  • the terminal device may not only fail to complete the channel access process, but also consume a lot of resources, so that the normal service transmission of the terminal device cannot be guaranteed. For this reason, there is no clear plan for how to reduce the impact on the service transmission of the terminal equipment after the channel access process fails.
  • the embodiments of the present application provide a channel access method and device to solve the problem of how to reduce the impact of terminal equipment on service transmission of terminal equipment after the channel access process fails.
  • an embodiment of the present application provides a channel access method.
  • the method includes: a terminal device performs a first count according to the number of times the channel access process fails; and when the first count reaches a pre-designed value, determining the wireless link Radio link failure (RLF); or, when the first count reaches the pre-designed value, the terminal device starts a second timing unit; and when the second timing unit expires, the The terminal device determines the RLF.
  • RLF wireless link Radio link failure
  • the terminal device can determine whether a wireless link failure occurs according to the number of failures of the channel access process.
  • the terminal device determines the RLF, it can determine that the current channel quality is poor, so that the channel access process can no longer be performed, and the cell reselection process can be performed, thereby reducing the impact on the service transmission of the terminal device.
  • the determination of RLF can be postponed to avoid that the terminal device determines whether the RLF is too frequently due to large fluctuations in the channel quality of the terminal device in a short period of time Therefore, it is possible to further reduce the false alarm of the RLF by the terminal device.
  • the terminal device performs the first count according to the number of times the channel access process fails, including:
  • the first counting unit When the terminal device determines that the channel access process fails for K1 consecutive times, the first counting unit is incremented by 1 to perform the first counting; K1 is an integer greater than 0, and the initial value of the first counting unit is 0 Or, when the terminal device determines that the channel access process fails for K1 consecutive times, the first counting unit is subtracted by 1 to perform the first counting; K1 is an integer greater than 0, and the initial value of the first counting unit The value is N, and N is an integer greater than 0.
  • the first counting unit is increased or decreased by 1, which can avoid counting too quickly to the pre-designed value, and avoid the terminal device from determining whether RLF is too frequent, so that It further reduces the terminal equipment's false report to RLF.
  • the method further includes: the terminal device starts the first timing unit; during the operation of the first timing unit, when all When the terminal device determines that the channel access process fails, keep the count value of the first counting unit unchanged.
  • the first timing unit is activated, which can further avoid counting to a pre-designed value too quickly, and avoid the terminal device from frequently determining RLF.
  • the method further includes: during the operation of the first timing unit, when the terminal device determines that the K2 consecutive channel access procedures are successful, resetting the first timing unit, and /Or reset the first counting unit, K2 is an integer greater than zero.
  • the first counting unit can be reset to re-count, so as to avoid counting too fast to the pre-designed value.
  • the terminal device determines that RLF does not occur, and sets the first counting unit Reset.
  • the method further includes: resetting the first counting unit when the terminal device determines that the number of successful consecutive channel access procedures is greater than or equal to K4, where K4 is an integer greater than 0.
  • the method further includes: when the terminal device determines that the channel access process fails, the terminal device starts or restarts a third timing unit; when the third timing unit expires When the count value of the first counting unit is less than the pre-designed value, the first counting unit is reset.
  • the terminal device By setting the third timing unit, when the third timing unit expires, when the count value of the first counting unit is less than the pre-designed value, the first counting unit can be directly reset, so that the first counting unit can be avoided.
  • the terminal device When a counting unit has not counted to the pre-designed value for a long time, the terminal device always performs the channel access process.
  • the method before the terminal device performs the first count according to the number of failed channel access procedures, the method further includes: the terminal device receives an activation instruction from a network device, the activation instruction being used to indicate The terminal device determines whether RLF occurs according to the first count.
  • the method before the terminal device performs the first count according to the number of failed channel access procedures, the method further includes: the terminal device receives configuration parameters from a network device; the configuration parameters include the following: Item or multiple items: the cell where the channel access process used for the first counting is located; the bandwidth part BWP corresponding to the channel access process used for the first counting; used for the first counting The sub-bandwidth corresponding to the channel access process for counting; the channel type or signal type corresponding to the channel access process for performing the first counting; the channel type or signal type corresponding to the channel access process for performing the first counting Channel access type; used for the channel access priority classification corresponding to the channel access process for performing the first counting; activation indication, the activation indication used for instructing the terminal device to determine whether or not according to the first counting RLF occurs.
  • the configuration parameters include the following: Item or multiple items: the cell where the channel access process used for the first counting is located; the bandwidth part BWP corresponding to the channel access process used for the first counting; used for the first counting The sub-
  • the method further includes: the terminal device triggers a cell re-establishment process; or, the terminal device sends failure reporting process signaling to the network device
  • the failure reporting process signaling includes one or more of the following: the failure reason of the RLF; the identity of the cell where the RLF occurs; the identity of the cell group where the RLF occurs.
  • an embodiment of the present application provides a channel access device, which is used to implement the first aspect or any one of the methods in the first aspect, and includes corresponding functional modules, such as a processing unit, a transceiver unit, etc., respectively Used to implement the steps in the above method.
  • an embodiment of the present application provides a channel access device, the terminal device includes a processor, and the processor is coupled to a memory, wherein: the memory is used to store instructions; the processor is used to execute instructions stored in the memory, It is used to implement the above-mentioned first aspect or any one of the possible design methods of the first aspect.
  • the multi-hop data transmission device may further include the memory.
  • the terminal device may further include a transceiver for supporting the terminal device to send and/or receive information in the foregoing method.
  • the terminal device may also be a device in the terminal device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may also include other circuit structures and/or discrete devices.
  • an embodiment of the present application provides a terminal device, including any one of the foregoing second aspect or the second aspect, and/or any one of the foregoing third aspect or the third aspect.
  • an embodiment of the present application provides a computer-readable storage medium, which stores computer-readable instructions.
  • the computer reads and executes the computer-readable instructions, the computer is caused to execute the first Aspect or any one of the possible design methods of the first aspect.
  • the embodiments of the present application provide a computer program product.
  • the computer reads and executes the computer program product, the computer executes the method in the first aspect or any one of the possible designs in the first aspect. .
  • an embodiment of the present application provides a chip, which is connected to a memory, and is used to read and execute a software program stored in the memory to implement the first aspect or any one of the first aspects. Possible design methods.
  • Figure 1 shows a communication system suitable for an embodiment of the present application
  • Figure 2 shows a schematic diagram of a dual connection scenario applicable to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a channel access method provided by an embodiment of the application.
  • Figure 4 is a schematic diagram of a cell provided by an embodiment of the application.
  • FIG. 5 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the application.
  • NR new radio
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE-A advanced long term evolution
  • eLTE evolved long term evolution
  • FIG. 1 shows a schematic diagram of a communication system applicable to the communication method of the embodiment of the present application.
  • the communication system includes a network device and at least one terminal device. For the convenience of description, only one terminal device is shown in Figure 1.
  • the embodiment of the present application may also be applicable to a dual connectivity (DC) scenario, that is, a terminal device is connected to two network devices at the same time.
  • DC dual connectivity
  • the terminal device is simultaneously connected to the main network device and the auxiliary network device.
  • the two network devices connected by the terminal device can be network devices under the same wireless access technology, for example, both network devices in the LTE communication system or both network devices in the 5G communication system, or two network devices connected by the terminal device It may also be a network device under different wireless access technologies, for example, one is a network device in an LTE communication system, and the other is a network device in a 5G communication system.
  • the terminal device is a device with a wireless transceiver function or a chip that can be installed in the device.
  • the device with wireless transceiver function may also be called user equipment (UE), access terminal, user unit, user station, mobile station, remote station, remote terminal, mobile equipment, user terminal, user agent Or user device.
  • UE user equipment
  • the terminal devices in the embodiments of the present application may be mobile phones, tablets, computers with wireless transceiver functions, virtual reality (VR) terminals, augmented reality (augmented reality).
  • VR virtual reality
  • augmented reality augmented reality
  • terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, Wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes.
  • the embodiment of this application does not limit the application scenario.
  • the aforementioned devices with wireless transceiver functions and chips that can be installed in the devices are collectively referred to as terminal devices.
  • the network equipment may be wireless access equipment under various standards, such as evolved Node B (eNB), radio network controller (RNC), or Node B (Node B).
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • NB base station controller
  • BSC base transceiver station
  • BTS base transceiver station
  • HNB home Node B
  • BBU baseband unit
  • AP access point
  • wireless relay node wireless backhaul node
  • transmission point transmission and reception point
  • TRP or transmission point, TP in wireless fidelity (WIFI) system, etc.
  • WIFI wireless fidelity
  • It can also be the gNB or transmission point (TRP or TP) in the 5G (NR) system, one or a group of (including multiple antenna panels) antenna panels of the base station in the 5G system, or it can also be the gNB or transmission Point network nodes, such as baseband unit (BBU), or DU under a centralized unit-distributed (CU-DU) architecture.
  • TRP transmission point
  • TP transmission point
  • BBU baseband unit
  • CU-DU centralized unit-distributed
  • terminal devices need to compete for channels through the channel access process. If the channel access process fails, the terminal device may continue to perform the channel access process until the channel access process is completed. If the channel condition of the terminal device is poor, the channel access process may not be completed all the time. At this time, the terminal device not only fails to complete the channel access process, but also consumes a lot of resources, which cannot guarantee the normal service transmission of the terminal device.
  • the present application provides a channel access method and device to solve how to reduce the impact on the service transmission of the terminal device when the terminal device fails to access the channel for multiple consecutive times.
  • FIG. 3 is a schematic flowchart of a channel access method provided by an embodiment of this application.
  • the method includes:
  • Step 301 The terminal device performs a first count according to the number of failed channel access procedures.
  • the terminal device if the terminal device has not completed the channel access process at the starting point of uplink transmission, it can be determined that the channel access process failed.
  • this slot is used to transmit a medium access control (Medium Access Control, MAC) protocol data unit (protocol data unit, PDU).
  • MAC Medium Access Control
  • PDU protocol data unit
  • a slot includes 14 symbols, symbol 0 to symbol 13, the starting point of uplink transmission can start from symbol 0, symbol 1, symbol 7, symbol 10, etc., if the terminal equipment does not exist before the last starting point of this slot
  • the uplink transmission may refer to the transmission of physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), physical random access channel (PRACH), and sounding reference Any of the signals (sounding reference signal, SRS).
  • the terminal device if the terminal device is at the pre-allocated time domain location of the network device, it can be determined that the channel access process has failed in order to complete the channel access process. Correspondingly, if the channel access process is completed at the time domain location pre-allocated by the network device, the channel access process is successful.
  • Step 302 When the first count reaches the pre-designed value, determine the RLF.
  • step 303 when the first count reaches the pre-designed value, the terminal device activates a second timing unit; and when the second timing unit expires, the terminal device determines RLF.
  • the terminal device can determine whether a radio link failure (radio link failure, RLF) occurs according to the number of times the channel access process fails. If the terminal device determines the RLF, it can be determined that the current channel quality is poor, so that the channel access process can no longer be performed, and the cell reselection process can be performed, thereby reducing the impact on the service transmission of the terminal device.
  • RLF radio link failure
  • step 302 to step 303 in the first possible implementation manner, when the first count reaches the pre-designed value, the RLF can be directly determined.
  • the terminal device when the first count reaches the pre-designed value, the terminal device starts the second timing unit.
  • the timing duration of the second timing unit is the second duration.
  • the second duration may be determined by the terminal device or configured by the network device, which is not limited in this embodiment of the application.
  • the second timing unit may be implemented by hardware or software, which is not limited in the embodiment of the present application.
  • K3 is an integer greater than 0. Further, when the number of successful consecutive channel access procedures of the terminal device is greater than or equal to K3, the terminal device stops the timing of the second timing unit and resets the second timing unit.
  • K3 may be determined by the terminal device or configured by the network device, which is not limited in the embodiment of the present application.
  • the second timing unit When the second timing unit expires, it indicates that during the operation of the second timing unit, the number of times the terminal device has succeeded in the continuous channel access process is less than K3, and the terminal device can determine RLF at this time.
  • a buffer period can be obtained.
  • the second timing unit expires, it can be determined that the channel condition of the terminal device is still poor, so that it can be determined When RLF occurs, the accuracy of determining RLF is improved.
  • the terminal device may set a first variable, and the initial value of the first variable is 0.
  • the terminal device adds 1 to the value of the first variable every time the channel access process succeeds; and sets the value of the first variable to 0 every time the channel access process fails.
  • the value of the first variable is equal to K3, it means that during the operation of the second timing unit, the number of times the terminal device has succeeded in the continuous channel access process is greater than or equal to K3.
  • the terminal device stops and resets the second timing unit, and the terminal device can It is determined that RLF has not occurred; correspondingly, when the value of the first variable is less than K3 during the operation of the second timing unit, it means that the number of successful consecutive channel access procedures of the terminal equipment during the operation of the second timing unit is less than K3.
  • the terminal device can determine RLF.
  • a terminal device can be configured with multiple cells, a cell can be configured with multiple bandwidth parts (bandwidth parts, BWP), and a BWP can include multiple subbands (subband).
  • the terminal equipment can use at least two ways to implement the channel access process in a subband: Mode 1, channel access process based on fallback; Mode 2, channel access process based on fixed duration.
  • Mode 1 and Mode 2 For the specific content of Mode 1 and Mode 2, reference may be made to the description in the prior art, which will not be repeated here.
  • the channel access process of each mode corresponds to multiple priority classes, and different priority classes correspond to different channel access parameters.
  • the terminal device needs to determine the corresponding cell, the corresponding BWP, the corresponding subband, and the channel access when the channel access process fails before determining whether RLF occurs according to the number of channel access process failures. Therefore, before step 301, the terminal device can also determine one or more of the following parameters:
  • the cell where the channel access process for the first counting is located includes the primary cell or the secondary cell.
  • the terminal device is configured with carrier aggregation (CA)
  • CA carrier aggregation
  • the cell accessed by the terminal device includes one primary cell and at least one secondary cell. After the terminal device has determined the cell, it can determine in which cell the number of failed channel access procedures is counted.
  • the BWP corresponding to the channel access process used for the first count Because the terminal device can be configured with at least one BWP. Through this parameter, the terminal device can determine the number of times the channel access process fails in which BWP, which can be used to perform the first count.
  • the terminal device can determine the number of times the channel access process fails in which subbands, which can be used for the first counting.
  • the channel type or signal type corresponding to the channel access process used for the first counting includes but not limited to at least one of the following: physical uplink shared channel (PUSCH), physical uplink Control channel (Physical uplink control channel, PUCCH), Physical random access channel (Physical random access channel, PRACH); signal types include, but are not limited to, sounding reference signal (sounding reference signal, SRS).
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink Control channel
  • PRACH Physical random access channel
  • signal types include, but are not limited to, sounding reference signal (sounding reference signal, SRS).
  • SRS sounding reference signal
  • the terminal device can determine which channel access priority classification to use for the number of channel access process failures, which can be used For the first count.
  • each of the above parameters can be pre-arranged between the terminal device and the network device, or can be configured by the network device through configuration parameters, that is, the network device can send configuration parameters to the terminal device, and the configuration parameters include the above One or more.
  • the terminal device may determine each of the foregoing parameters according to a predetermined manner, or may determine each of the foregoing parameters according to the configuration parameters sent by the network device.
  • the configuration parameters sent by the network device may also include an activation indication, the activation indication being used to instruct the terminal device to determine whether RLF occurs according to the first count, or to instruct the terminal device to follow the channel access process The number of failures determines whether RLF occurs.
  • the network device may also send the activation instruction to the terminal device by means such as high-level signaling.
  • the high-level signaling may be radio resource control (radio resource control, RRC) signaling.
  • the terminal device may perform the first counting in multiple ways, which are described below.
  • the terminal device adds 1 to the first counting unit every time it is determined that the channel access process fails for K1 consecutive times.
  • K1 is an integer greater than 0, and the initial value of the first counting unit may be 0.
  • K1 is 1, it means that every channel access process fails, and the terminal device adds 1 to the first counting unit.
  • K1 is 5, it means that every 5 channel access process fails, the terminal device will One counting unit adds 1, and so on.
  • Both K1 and the initial value of the first counting unit may be determined by the terminal device or configured by the network device, which is not limited in the embodiment of the present application.
  • the first counting unit is increased by 1, which can avoid counting too fast to the pre-designed value, and avoiding the terminal when the channel quality fluctuates greatly in a short time.
  • the device determines whether the RLF is too frequent, thereby further reducing false alarms of the RLF by the terminal device.
  • the first counting unit may be implemented by hardware or software, which is not limited in the embodiment of the present application.
  • the terminal device may set a second variable whose initial value is 0 and the value of the second variable is 0.
  • the terminal device can perform the first count.
  • the terminal device adds 1 to the value of the second variable each time the channel access process fails; and sets the value of the second variable to 0 each time the channel access process succeeds.
  • the value of the second variable is K1 it means that the terminal device has failed the channel access process for K1 consecutive times.
  • the terminal device sets the value of the second variable to 0 and adds 1 to the first counting unit.
  • the count value of the first counting unit is added to K5, where K5 is an integer greater than or equal to 1.
  • the terminal device uses the count value K5 of the first counting unit as the first count, and when the first count reaches a pre-designed value, the RLF can be determined. Among them, the specific value of the pre-designed value can be determined according to the actual situation, and will not be repeated here.
  • the terminal device decreases the count value of the first counting unit by 1 every K1 consecutive channel access process failures; the initial value of the first counting unit is N, and N is an integer greater than 0.
  • the RLF can be determined.
  • the terminal device determines whether the RLF is too frequent, so that the terminal device can further reduce the false alarm of the RLF.
  • the terminal device can also start the first timing unit, that is, every K1 consecutive channel access process fails, the terminal device will first The counting unit is incremented or decremented by 1, and the first timing unit is started.
  • the timing duration of the first timing unit is the first duration, and the first duration may be determined by the terminal device or configured by the network device, which is not limited in the embodiment of the present application, and will not be repeated here.
  • the terminal device determines that the channel access process has failed, the count value of the first counting unit is kept unchanged. If the first timing unit suspends timing or expires and stops timing, the terminal device adds 1 or subtracts 1 to the count value of the first counting unit whenever the channel access process fails for K1 consecutive times.
  • the terminal device may perform one or more of the following: reset the first timing unit Or pause timing; reset the first counting unit, that is, reset the first counting unit to the initial value.
  • K2 is an integer greater than zero. K2 may be determined by the terminal device, or configured by the network device, which is not limited in the embodiment of the present application.
  • the first timing unit may be implemented by hardware or software, which is not limited in the embodiment of the present application.
  • the terminal device may set a third variable whose initial value is 0, and when the value of the third variable is K2, the terminal device may reset the first timing unit Or suspend the counting, and/or reset the first counting unit.
  • the terminal device adds 1 to the value of the third variable each time the channel access process succeeds; and sets the value of the third variable to 0 each time the channel access process fails.
  • the terminal device sets the value of the third variable to 0 and resets or pauses the first timing unit. And/or reset the first counting unit.
  • the count value of the first counting unit that is too fast can be further prevented from reaching the pre-designed value, thereby avoiding that the terminal device has a relatively short period of time when the channel quality of the terminal device fluctuates greatly. It is determined whether the RLF is too frequent, so that the terminal device can further reduce the false alarms of the RLF.
  • the terminal device determines the RLF, the first counting may no longer be performed, that is, the counting process of the first counting unit is suspended. Further, at this time, the terminal device may also reset the first counting unit.
  • the first counting unit may also be reset according to the following manner, so as to prevent the first counting unit from counting for a long time.
  • K4 is an integer greater than 0; K4 can be determined by the terminal equipment or configured by the network equipment.
  • the application examples are not limited.
  • the terminal device may set a fourth variable whose initial value is 0.
  • the terminal device sets the fourth variable Add 1 to the value of; each time the channel access process fails, the value of the fourth variable is set to 0, and when the value of the fourth variable is K4, the terminal device can reset the first counting unit.
  • the terminal device sets the value of the fourth variable to 0 and resets the first counting unit.
  • Manner 2 When the terminal device determines that the channel access process fails, the third timing unit is started or restarted when the third timing unit is not in the running state. When the third timing unit expires, when the count value of the first counting unit is less than the pre-designed value, the first counting unit is reset.
  • the timing duration of the third timing unit is the third duration.
  • the third duration may be determined by the terminal device or configured by the network device, which is not limited in this embodiment of the application.
  • the third timing unit may be implemented by hardware or software, which is not limited in the embodiment of the present application.
  • the first counting unit can be directly reset when the third timing unit expires, so as to prevent the terminal device from always performing channel access when the first counting unit has not counted to the pre-designed value for a long time process.
  • the terminal device determines that the BWP handover occurs, it can also perform other operations, which will not be described one by one here.
  • the network device informs the terminal device to perform BWP switching through downlink control information; or, the terminal device determines that the currently used BWP cannot meet the service requirements and actively switches the BWP.
  • the above is only an example, and there may be other BWP switching conditions, which will not be repeated here.
  • the terminal device after the terminal device determines that the radio link fails RLF, it can trigger the cell re-establishment process, or it can also send failure reporting process signaling to the network device.
  • the failure reporting process signaling includes one or more of the following: Item: the reason for the failure of the RLF; the identity of the cell where the RLF occurred; the identity of the cell group where the RLF occurred.
  • the reason for the failure of the RLF may be, for example, RLF due to the failure of the channel access process; further, the reason for the failure may also be: the first count determined by the terminal device according to the number of failures of the channel access process reaches a pre-designed value.
  • the terminal device after the terminal device triggers cell re-establishment, it can switch to a cell with better channel quality, thereby increasing the probability of a successful channel access process. For example, both the primary network device and the secondary network device that the terminal device accesses have RLF, and the terminal device Thus, the cell re-establishment process can be started.
  • the terminal device sends failure reporting process signaling to enable the network device to determine the network status of the terminal device, thereby further triggering operations such as switching the terminal device to another cell.
  • the terminal device in the scenario where the terminal device is connected to the main network device and the secondary network device through the DC mode, if the terminal device determines the RLF in the primary cell of the primary network device, it can send the failure reporting process signaling through the secondary network The device forwards the device to the primary network device, or if the terminal device determines RLF in the secondary cell of the secondary network device, it can forward the failure reporting process signaling to the secondary network device through the primary network device, which is not limited in this embodiment of the application .
  • the terminal device 500 includes a processing unit 501 and a transceiver unit 502. It should be noted that the functions of the first counting unit, the first timing unit, the second timing unit, and the third timing unit can be implemented by the processing unit. At this time, the first counting unit, the first timing unit, the second timing unit, The third timing unit may be a functional module in the processing unit. The first counting unit, the first timing unit, the second timing unit, and the third timing unit may also be independent functional modules.
  • the terminal device 500 may also include a first counting unit 503, a first timing unit 504, and a second timing unit.
  • the first counting unit, the first timing unit, the second timing unit, and the third timing unit are independent functional modules as an example for description, and other cases are not described in detail.
  • the transceiver unit 502 is used to initiate a channel access process
  • the processing unit 501 is configured to perform a first count according to the number of failed channel access procedures; when the first count reaches a pre-designed value, determine that the radio link fails RLF; or, when the first count reaches the pre-designed value
  • the terminal device activates the second timing unit 505; and when the second timing unit 505 expires, the RLF is determined.
  • the processing unit 501 is specifically configured to:
  • the first counting unit 503 When it is determined that the channel access process fails for K1 consecutive times, the first counting unit 503 is increased by 1 to perform the first counting; K1 is an integer greater than 0, and the initial value of the first counting unit 503 is 0;
  • the first counting unit 503 is reduced by 1 to perform the first counting; K1 is an integer greater than 0, and the initial value of the first counting unit 503 is N , N is an integer greater than 0.
  • the processing unit 501 is further configured to: start the first timing unit 504;
  • the count value of the first counting unit 503 is kept unchanged.
  • processing unit 501 is further configured to:
  • K2 is An integer greater than 0.
  • the first counting unit 503 is reset .
  • processing unit 501 is further configured to:
  • the third timing unit 506 is started or restarted; when the third timing unit 506 expires, when the count value of the first counting unit 503 is less than the pre-designed When the value is calculated, the first counting unit 503 is reset.
  • the transceiver unit 502 is further configured to: receive an activation instruction from a network device, where the activation instruction is used to instruct the terminal The device determines whether RLF occurs according to the first count.
  • the transceiver unit 502 is further configured to: receive configuration parameters from a network device; the configuration parameters include one or more of the following item:
  • the transceiver unit 502 is further configured to:
  • the failure reporting process signaling including one or more of the following: the failure cause of the RLF; the identity of the cell where the RLF occurred; the cell where the RLF occurred The ID of the group.
  • Fig. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device shown in FIG. 6 may be a hardware circuit implementation of the terminal device shown in FIG. 5.
  • the terminal device can be applied to the flowchart shown in FIG. 3 to perform the functions of the terminal device in the foregoing method embodiment.
  • FIG. 6 only shows the main components of the terminal device.
  • the terminal device 600 includes a processor 601, a memory 602, a transceiver 603, an antenna 604, and an input and output device 605.
  • the processor 601 is mainly used to process communication protocols and communication data, and to control the entire wireless communication device, execute software programs, and process data of the software programs, for example, to support the wireless communication device to execute the methods described in the above method embodiments. Action etc.
  • the memory 602 is mainly used to store software programs and data.
  • the transceiver 603 is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the antenna 604 is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves.
  • the input output device 605, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive data input by the user and output data to the user.
  • first counting unit the functions of the first counting unit, the first timing unit, the second timing unit, and the third timing unit may be implemented by the processor 601.
  • the first counting unit, the first timing unit, the second timing unit, and the third timing unit can be implemented by the processor 601.
  • the timing unit may also be an independent circuit module.
  • the specific implementation is not limited in the embodiment of the application. , I won’t repeat it here.
  • the transceiver 603 is used to initiate a channel access process
  • the processor 601 is configured to perform a first count according to the number of failures in the channel access process; when the first count reaches a pre-designed value, determine that the radio link fails RLF; or, when the first count reaches the pre-designed value
  • the terminal device starts the second timing unit; and when the second timing unit expires, the RLF is determined.
  • the processor 601 is specifically configured to:
  • the first counting unit is increased by 1 to perform the first counting;
  • K1 is an integer greater than 0, and the initial value of the first counting unit is 0;
  • the first counting unit is reduced by 1 to perform the first counting; K1 is an integer greater than 0, and the initial value of the first counting unit is N, N Is an integer greater than 0.
  • the processor 601 is further configured to: start the first timing unit;
  • the count value of the first counting unit is kept unchanged.
  • the processor 601 is further configured to:
  • K2 is greater than 0 Integer.
  • the processor 601 is further configured to:
  • the third timing unit is started or restarted; when the third timing unit expires, when the count value of the first counting unit is less than the pre-designed value, Reset the first counting unit.
  • the transceiver 603 is further configured to:
  • the transceiver 603 is further configured to:
  • the configuration parameters include one or more of the following:
  • An activation indication where the activation indication is used to instruct the terminal device to determine whether RLF occurs according to the first count.
  • the transceiver 603 is further configured to:
  • the failure reporting process signaling including one or more of the following: the failure cause of the RLF; the identity of the cell where the RLF occurred; the cell where the RLF occurred The ID of the group.
  • the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

本申请实施例提供一种信道接入方法及装置，其中方法包括：终端设备根据信道接入过程失败的次数进行第一计数；当所述第一计数达到预设计数值时，确定无线链路失败RLF；或者，当所述第一计数达到所述预设计数值时，所述终端设备启动第二定时单元；且当所述第二定时单元期满时所述终端设备确定RLF。

Description

一种信道接入方法及装置
相关申请的交叉引用
本申请要求在2019年04月28日提交中国专利局、申请号为201910348140.0、申请名称为“一种信道接入方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种信道接入方法及装置。
背景技术
随着移动数据业务量的不断增长，频谱资源越来越紧张，仅使用授权频谱资源进行业务传输已经不能满足业务量需求，因此长期演进(Long Term Evolution，LTE)系统以及新无线(new radio，NR)系统等考虑在非授权频谱上进行业务传输。
在使用非授权频谱进行业务传输之前，网络设备或终端设备需要完成信道接入过程，信道接入过程也可以称为先听后说(listen Before Talk，LBT)过程，以下均统一称为信道接入过程。信道接入过程有两种实现方式：方式一，基于回退的信道接入过程，通信设备在一个竞争窗口中，随机选择一个数值A，当检测到至少A个空闲的时隙之后，才可以确定信道处于空闲状态，从而可以占用信道，否则需要重新竞争信道。其中，空闲的时隙是指在一个时隙内，在信道内检测到的信号的能量低于预设门限。方式二，基于固定时长的信道接入过程，通信设备检测固定时长，如果在该固定时长内，在信道内检测到的信号的能量低于预设门限，则认为信道处于空闲状态，从而可以占用信道，否则需要重新竞争信道。
目前，现有技术中，终端设备如果信道接入过程失败，则可能继续执行信道接入过程直到完成信道接入过程。信道接入过程失败的原因有多种，如果终端设备一直执行信道接入过程，则不但不能完成信道接入过程，还会消耗大量资源，从而无法保证终端设备正常的业务传输。为此，终端设备在信道接入过程失败之后，如何降低对终端设备的业务传输的影响，还没有明确的方案。
发明内容
本申请实施例提供一种信道接入方法及装置，用以解决终端设备在信道接入过程失败之后，如何降低对终端设备的业务传输的影响的问题。
第一方面，本申请实施例提供一种信道接入方法，该方法包括：终端设备根据信道接入过程失败的次数进行第一计数；当所述第一计数达到预设计数值时，确定无线链路失败(radio link failure，RLF)；或者，当所述第一计数达到所述预设计数值时，所述终端设备启动第二定时单元；且当所述第二定时单元期满时，所述终端设备确定RLF。
通过上述方法，终端设备可以根据信道接入过程失败的次数，确定是否发生无线链路失败。终端设备确定RLF时，可以确定当前信道质量较差，从而可以不再进行信道接入过 程，可以执行小区重选等流程，从而降低对终端设备的业务传输的影响。进一步的，当第一计数达到预设计数值时，通过启动第二定时单元，可以延缓确定RLF，避免由于较短时间内，终端设备的信道质量波动较大时，终端设备确定RLF与否过于频繁，从而，可以进一步的减少终端设备对RLF产生误报。
一种可能的设计中，所述终端设备根据信道接入过程失败的次数进行第一计数，包括：
当所述终端设备确定连续K1次信道接入过程失败时，将第一计数单元加1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元的初始值为0；或者，当所述终端设备确定连续K1次信道接入过程失败时，将第一计数单元减1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元的初始值为N，N为大于0的整数。
通过上述方法，每连续K1次信道接入过程失败时，将第一计数单元加1或减1，可以避免过快的计数到预设计数值，避免终端设备确定RLF与否过于频繁，从而，可以进一步的减少终端设备对RLF产生误报。
一种可能的设计中，所述终端设备确定连续K1次信道接入过程失败之后，所述方法还包括：所述终端设备启动第一定时单元；在所述第一定时单元运行期间，当所述终端设备确定所述信道接入过程失败时，保持所述第一计数单元的计数值不变。
通过上述方法，每连续K1次信道接入过程失败时，启动第一定时单元，可以进一步避免过快的计数到预设计数值，避免终端设备频繁确定RLF。
一种可能的设计中，所述方法还包括：在所述第一定时单元运行期间，当所述终端设备确定连续K2次信道接入过程成功时，将所述第一定时单元重置，和/或将所述第一计数单元重置，K2为大于0的整数。
通过上述方法，连续K2次信道接入过程成功时，可以认为终端设备的信道状况较佳，因此可以将第一计数单元重置，以重新计数，从而可以避免过快的计数到预设计数值。
一种可能的设计中，在所述第二定时单元运行期间，当确定连续信道接入过程成功的次数大于或等于K3时，所述终端设备确定未发生RLF，并将所述第一计数单元重置。
通过上述方法，当连续信道接入过程成功的次数大于或等于K3，可以确定终端设备的信道状况较好，可以确定未发生RLF，从而将第一计数单元重置，避免第一计数单元长时间未计数到预设计数值，终端设备一直进行信道接入过程。
一种可能的设计中，所述方法还包括：当所述终端设备确定连续信道接入过程成功的次数大于或等于K4时，将所述第一计数单元重置，K4为大于0的整数。
一种可能的设计中，所述方法还包括：当所述终端设备确定所述信道接入过程失败时，所述终端设备启动或重启第三定时单元；在所述第三定时单元期满时，当所述第一计数单元的计数值小于所述预设计数值时，将所述第一计数单元重置。
通过上述方法，通过设置第三定时单元，可以在第三定时单元期满时，在第一计数单元的计数值小于所述预设计数值时，直接将第一计数单元重置，从而可以避免第一计数单元长时间未计数到预设计数值时，终端设备一直进行信道接入过程。
一种可能的设计中，所述终端设备根据信道接入过程失败的次数进行第一计数之前，所述方法还包括：所述终端设备接收来自网络设备的激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。
一种可能的设计中，所述终端设备根据信道接入过程失败的次数进行第一计数之前，所述方法还包括：所述终端设备接收来自网络设备的配置参数；所述配置参数包括以下一 项或多项：用于所述进行第一计数的信道接入过程所处的小区；用于所述进行第一计数的信道接入过程所对应的带宽部分BWP；用于所述进行第一计数的信道接入过程所对应的子带宽；用于所述进行第一计数的信道接入过程所对应的信道类型或信号类型；用于所述进行第一计数的信道接入过程所对应的信道接入类型；用于所述进行第一计数的信道接入过程所对应的信道接入优先级分类；激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。
一种可能的设计中，所述终端设备确定无线链路失败RLF之后，所述方法还包括：所述终端设备触发小区重建立过程；或者，所述终端设备向网络设备发送失败上报过程信令，所述失败上报过程信令中包括以下一项或多项：所述RLF的失败原因；发生所述RLF的小区的标识；发生所述RLF的小区组的标识。
第二方面，本申请实施例提供一种信道接入装置，用于实现上述第一方面或第一方面中的任意一种方法，包括相应的功能模块，例如包括处理单元、收发单元等，分别用于实现以上方法中的步骤。
第三方面，本申请实施例提供一种信道接入装置，所述终端设备包括处理器，所述处理器与存储器耦合，其中：存储器用于存储指令；处理器用于根据执行存储器存储的指令，用于执行上述第一方面或第一方面中任一种可能的设计中的方法。可选的，所述多跳数据传输装置还可以包括所述存储器。可选的，所述终端设备还可以包括收发器，用于支持所述终端设备进行上述方法中的信息发送和/或接收。可选的，该终端设备也可以是终端设备中的装置，如芯片或者芯片系统，其中所述芯片系统包含至少一个芯片，所述芯片系统还可以包括其他电路结构和/或分立器件。
第四方面，本申请实施例提供一种终端设备，包括上述第二方面或第二方面中的任意一种装置，和/或上述第三方面或第三方面中的任意一种装置。
第五方面，本申请实施例提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述第一方面或第一方面中的任一种可能的设计中的方法。
第六方面，本申请实施例提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述第一方面或第一方面中的任一种可能的设计中的方法。
第七方面，本申请实施例提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述第一方面或第一方面中的任一种可能的设计中的方法。
附图说明
图1示出了适用于本申请实施例的通信系统；
图2示出了适用于本申请实施例的双连接场景示意图；
图3为本申请实施例提供的一种信道接入方法流程示意图；
图4为本申请实施例提供的一种小区示意图；
图5为本申请实施例提供的一种终端设备结构示意图；
图6为本申请实施例提供的一种终端设备结构示意图。
具体实施方式
下面结合说明书附图对本申请实施例做详细描述。
本申请实施例可以应用于各种移动通信系统，例如：新无线(new radio，NR)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、先进的长期演进(advanced long term evolution，LTE-A)系统、演进的长期演进(evolved long term evolution，eLTE)系统、未来通信系统等其它通信系统，具体的，在此不做限制。
为便于理解本申请实施例，首先以图1中示出的通信系统为适用于本申请实施例的通信系统。图1示出了适用于本申请实施例的通信方法的通信系统的示意图。如图1所示，该通信系统包括网络设备和至少一个终端设备，为了描述方便，图1中只示出1个终端设备。
本申请实施例还可以适用于双连接(dual connectivity，DC)的场景，也就是终端设备同时连接两个网络设备，具体可以参考图2。图2中，终端设备同时与主网络设备以及辅网络设备连接。终端设备连接的两个网络设备可以是同一无线接入技术下的网络设备，例如都是LTE通信系统中的网络设备或都是5G通信系统中的网络设备，或者终端设备连接的两个网络设备也可以是不同的无线接入技术下的网络设备，例如一个是LTE通信系统中的网络设备，另一个是5G通信系统中的网络设备。
在本申请实施例中，终端设备，为具有无线收发功能的设备或可设置于该设备的芯片。其中，所述具有无线收发功能的设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、远方站、远程终端、移动设备、用户终端、用户代理或用户装置。在实际应用中，本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。本申请的实施例对应用场景不做限定。本申请中将前述具有无线收发功能的设备及可设置于该设备中的芯片统称为终端设备。
在本申请实施例中，网络设备可以为各种制式下无线接入设备，例如演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)或节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission and reception point，TRP或者transmission point，TP)等，还可以为5G(NR)系统中的gNB或传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或在集中式-分布式(central unit-distributed,CU-DU)架构下的DU等。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知， 随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
在非授权频谱中，终端设备需要通过信道接入过程，竞争信道。终端设备如果信道接入过程失败，则可能继续执行信道接入过程直到完成信道接入过程。如果终端设备的信道状况较差，则可能一直无法完成信道接入过程，此时终端设备不但不能完成信道接入过程，还会消耗大量资源，从而无法保证终端设备正常的业务传输。
有鉴于此，本申请提供一种信道接入方法和装置，用以解决终端设备在连续多次信道接入失败时，如何降低对终端设备的业务传输的影响。
参见图3，为本申请实施例提供的一种信道接入方法流程示意图。该方法包括：
步骤301：终端设备根据信道接入过程失败的次数进行第一计数。
需要说明的是，终端设备在进行信道接入过程时，如何确定是否失败，可以参考现有技术的描述。
举例来说，第一种场景中，终端设备在上行传输的起始点，还未完成信道接入过程，则可以确定信道接入过程失败。其中，上行传输的起始点在一个时隙(slot)内可能存在多个，这个slot用于传输一个媒体接入控制(Medium access control，MAC)协议数据单元(protocol data unit，PDU)。例如，一个slot包括14个符号，符号0到符号13，上行传输的起始点可以从符号0，符号1，符号7，符号10等开始，如果终端设备在这个slot的最后的起始点之前都没有完成信道接入过程，则可以确定信道接入过程失败。所述上行传输可以是指传输物理上行共享信道(Physical uplink shared channel，PUSCH)、物理上行控制信道(Physical uplink control channel，PUCCH)，物理随机接入信道(Physical random access channel，PRACH)以及探测参考信号(sounding reference signal，SRS)中的任意一种。
第二种场景中，终端设备在网络设备预先分配的时域位置，还为完成信道接入过程，则可以确定信道接入过程失败。相应的，如果在网络设备预先分配的时域位置，完成信道接入过程，则信道接入过程成功。
步骤302：当所述第一计数达到预设计数值时，确定RLF。
或者，步骤303：当所述第一计数达到所述预设计数值时，所述终端设备启动第二定时单元；且当所述第二定时单元期满时所述终端设备确定RLF。
上述过程中，终端设备可以根据信道接入过程失败的次数，确定是否发生无线链路失败(radio link failure，RLF)。终端设备确定RLF，则可以确定当前信道质量较差，从而可以不再进行信道接入过程，可以执行小区重选等流程，从而降低对终端设备的业务传输的影响。
步骤302至步骤303中，第一种可能的实现方式中，当第一计数达到预设计数值时，则可以直接确定RLF。
第二种可能的实现方式中，当第一计数到达预设计数值时，终端设备启动第二定时单元。第二定时单元的定时时长为第二时长，第二时长可以由终端设备确定，也可以由网络设备配置，本申请实施例并不限定。
需要说明的是，第二定时单元可以由硬件实现，也可以由软件实现，本申请实施例对此并不限定。
在所述第二定时单元运行期间，当终端设备连续信道接入过程成功的次数大于或等于K3时，确定未发生RLF，且将所述第一计数单元重置，K3为大于0的整数。进一步的， 当终端设备连续信道接入过程成功的次数大于或等于K3时，终端设备停止第二定时单元计时，并重置第二定时单元。K3可以由终端设备确定，也可以由网络设备配置，本申请实施例并不限定。
当所述第二定时单元期满时，表明在所述第二定时单元运行期间，所述终端设备连续信道接入过程成功的次数小于K3，此时终端设备可以确定RLF。
通过上述方法，当第一计数到达预设计数值时，通过启动第二定时单元，可以获得一段缓冲期，在第二定时单元运行期满，可以确定终端设备的信道状况仍然较差，从而可以确定发生RLF，提高确定RLF的准确性。
举例来说，在第二定时单元运行期间，终端设备可以设置一个第一变量，该第一变量的初始值为0。终端设备每次信道接入过程成功时，将第一变量的值加1；每次信道接入过程失败时，将第一变量的值置为0。当第一变量的值等于K3时，表示在第二定时单元运行期间，终端设备连续信道接入过程成功的次数大于或等于K3，此时终端设备停止并重置第二定时单元，终端设备可以确定未发生RLF；相应的，在第二定时单元运行期间，当第一变量的值小于K3时，表示在第二定时单元运行期间，终端设备连续信道接入过程成功的次数小于K3，此时终端设备可以确定RLF。
如图4所示，一个终端设备可以配置多个小区，一个小区可以配置多个带宽部分(bandwidth part，BWP)，一个BWP可以包括多个子带(subband)。终端设备在一个subband中可以采用至少两种方式实现信道接入过程：方式一，基于回退的信道接入过程；方式二，基于固定时长的信道接入过程。方式一和方式二的具体内容，可以参考现有技术中的描述，在此不再赘述。每种方式的信道接入过程又对应多种优先级类别(priority class)，不同优先级类别对应不同的信道接入参数。
为此，结合上面的描述，终端设备在根据信道接入过程失败的次数，确定是否发生RLF之前，还需要确定信道接入过程失败时对应的小区、对应的BWP、对应的子带以及信道接入类型等参数，因此在步骤301之前，终端设备还可以确定以下一项或多项参数：
●用于进行第一计数的信道接入过程所处的小区；该小区包括主小区或者辅小区。其中，如果终端设备配置载波聚合(carrier aggregation，CA)，那么终端设备接入的小区包括一个主小区和至少一个辅小区。终端设备确定了小区，就可以确定在哪些小区中统计信道接入过程失败的次数。
●用于进行第一计数的信道接入过程所对应的BWP。由于终端设备可以被配置至少一个BWP。通过该参数，终端设备可以确定在哪些BWP中信道接入过程失败的次数，可以用于进行第一计数。
●用于进行第一计数的信道接入过程所对应的子带宽；由于一个BWP包括至少一个子带。通过该参数，终端设备可以确定在哪些子带中信道接入过程失败的次数，可以用于进行第一计数。
●用于进行第一计数的信道接入过程所对应的信道类型或信号类型；其中，其中信道类型包括但不限于以下至少一种：物理上行共享信道(Physical uplink shared channel，PUSCH)、物理上行控制信道(Physical uplink control channel，PUCCH)，物理随机接入信道(Physical random access channel，PRACH)；信号类型包括但不限于探测参考信号(sounding reference signal，SRS)。通过该参数，终端设备可以确定在哪些类型的信道中信道接入过程失败的次数，以及为了发送哪些类型的信 号所进行的信道接入过程失败的次数，可以用于进行第一计数。
●用于进行第一计数的信道接入过程所对应的信道接入方式；通过该参数，终端设备可以确定采用哪种方式实现信道接入过程失败的次数，可以用于进行第一计数。
●用于进行第一计数的信道接入过程所对应的信道接入优先级分类；通过该参数，终端设备可以确定采用哪种信道接入优先级分类进行信道接入过程失败的次数，可以用于进行第一计数。
当然以上只是示例，还可能包括其他参数，在此不再逐一举例说明。
需要说明的是，上述每项参数可以由终端设备与网络设备之间预先约定，也可以由网络设备通过配置参数进行配置，即网络设备可以向终端设备发送配置参数，所述配置参数中包括以上一项或多项。结合上面的描述，终端设备可以根据预先约定的方式确定上述每项参数，也可以根据网络设备发送的配置参数确定上述每项参数。
示例性的，网络设备发送的配置参数中还可以包括激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF，或者用于指示终端设备根据信道接入过程失败的次数，确定是否发生RLF。
当配置参数中不包括激活指示时，还可以由网络设备通过高层信令等方式，向终端设备发送所述激活指示。例如高层信令可以为无线资源控制(radio resource control，RRC)信令等。
本申请实施例中，终端设备可以通过多种方式进行第一计数，下面分别描述。
第一种可能的实现方式，每确定连续K1次信道接入过程失败，终端设备将第一计数单元加1。其中，K1为大于0的整数，所述第一计数单元的初始值可以为0。示例的，K1为1时，表示每1次信道接入过程失败，终端设备将第一计数单元加1，再如，K1等于5时，表示每5次信道接入过程失败，终端设备将第一计数单元加1，等等。K1、以及第一计数单元的初始值均可以由终端设备确定，也可以由网络设备配置，本申请实施例并不限定。
通过上述方法，每连续K1次信道接入过程失败时，将第一计数单元加1，可以避免过快的计数到预设计数值，避免由于较短时间内，当信道质量波动较大时，终端设备确定RLF与否过于频繁，从而，可以进一步的减少终端设备对RLF产生误报。
需要说明的是，第一计数单元可以由硬件实现，也可以由软件实现，本申请实施例对此并不限定。终端设备如何确定连续K1次信道接入过程失败，本申请实施例对此并不限定，举例来说，终端设备可以设置一个第二变量，该第二变量的初始值为0，第二变量的值为K1时，终端设备可以进行第一计数。终端设备每次信道接入过程失败时，将第二变量的值加1；每次信道接入过程成功时，将第二变量的值置为0。每当第二变量的值为K1时，表示终端设备已经连续K1次信道接入过程失败，此时终端设备将第二变量的值置为0，并将第一计数单元加1。以此类推，第一计数单元的计数值加至K5，其中K5为大于等于1的整数。终端设备将所述第一计数单元的计数值K5作为第一计数，当第一计数达到预设计数值时，则可以确定RLF。其中，预设计数值的具体取值，可以根据实际情况确定，在此不再赘述。
第二种可能的实现方式，每连续K1次信道接入过程失败，终端设备将第一计数单元的计数值减1；所述第一计数单元的初始值为N，N为大于0的整数。
当第一计数单元的计数值减至预设计数值时，则可以确定RLF。
通过上述方法，每连续K1次信道接入过程失败时，将第一计数单元减1，可以避免过快的第一计数单元的计数值减至预设计数值，避免由于较短时间内，当信道质量波动较大时，终端设备确定RLF与否过于频繁，从而，可以进一步的减少终端设备对RLF产生误报。
第三种可能的实现方式，在第一种或第二种可能的实现方式的基础上，终端设备还可以启动第一定时单元，即每连续K1次信道接入过程失败，终端设备将第一计数单元加1或者减1，并启动第一定时单元。第一定时单元的定时时长为第一时长，第一时长可以由终端设备确定，也可以由网络设备配置，本申请实施例并不限定，在此不再赘述。
在第一定时单元运行期间，当终端设备确定所述信道接入过程失败时，保持第一计数单元的计数值不变。如果第一定时单元暂停计时或者期满停止计时，每当连续K1次信道接入过程失败，终端设备将第一计数单元的计数值加1或者减1。
示例性的，在该实现方式中，在第一定时单元运行期间，当终端设备确定连续K2次信道接入过程成功时，终端设备可以执行以下一项或多项：将第一定时单元重置或暂停计时；将第一计数单元重置，即将第一计数单元重置为初始值。K2为大于0的整数。K2可以由终端设备确定，也可以由网络设备配置，本申请实施例并不限定。
需要说明的是，第一定时单元可以由硬件实现，也可以由软件实现，本申请实施例对此并不限定。
终端设备如何确定连续K2次信道接入过程成功，本申请实施例对此并不限定。举例来说，在第一定时单元运行期间，终端设备可以设置一个第三变量，该第三变量的初始值为0，第三变量的值为K2时，终端设备可以将第一定时单元重置或暂停计，和/或将第一计数单元重置。终端设备每次信道接入过程成功时，将第三变量的值加1；每次信道接入过程失败时，将第三变量的值置为0。每当第三变量的值为K2时，表示终端设备已经连续K2次信道接入过程成功，此时终端设备将第三变量的值置为0，并将第一定时单元重置或暂停计，和/或将第一计数单元重置。
通过上述方法，通过启动第一定时单元，可以进一步避免过快的第一计数单元的计数值达到预设计数值，从而避免由于较短时间内，当终端设备的信道质量波动较大时，终端设备确定RLF与否过于频繁，从而，可以进一步的减少终端设备对RLF产生误报。
需要说明的是，当终端设备确定RLF时，可以不再进行第一计数，即暂停第一计数单元的计数过程。进一步的，此时终端设备还可以将第一计数单元重置。
上述第一至第三种可能的实现方式的任一实现方式中，还可以根据以下方式重置第一计数单元，从而避免第一计数单元长时间计数。
方式一：当终端设备连续信道接入过程成功的次数大于或等于K4时，将第一计数单元重置，K4为大于0的整数；K4可以由终端设备确定，也可以由网络设备配置，本申请实施例并不限定。
举例来说，在第一计数单元从初始值开始计数时，终端设备可以设置一个第四变量，该第四变量的初始值为0，终端设备每次信道接入过程成功时，将第四变量的值加1；每次信道接入过程失败时，将第四变量的值置为0，当第四变量的值为K4时，终端设备可以将第一计数单元重置。每当第四变量的值为K4时，表示终端设备已经连续K4次信道接入过程成功，此时终端设备将第四变量的值置为0，并将第一计数单元重置。
方式二：当终端设备确定信道接入过程失败时，在第三定时单元未处于运行状态时， 启动或重启第三定时单元。在所述第三定时单元期满的情况下，当第一计数单元的计数值小于预设计数值时，将第一计数单元重置。第三定时单元的定时时长为第三时长，第三时长可以由终端设备确定，也可以由网络设备配置，本申请实施例并不限定。
需要说明的是，第三定时单元可以由硬件实现，也可以由软件实现，本申请实施例对此并不限定。
通过设置第三定时单元，可以在第三定时单元期满时，直接将第一计数单元重置，从而可以避免第一计数单元长时间未计数到预设计数值时，终端设备一直进行信道接入过程。
示例性的，本申请实施例中，还可以在终端设备确定发生BWP切换时，执行以下至少一项操作：
ο停止第一定时单元；
ο重置第一计数单元；
ο重启第二定时单元；
ο停止第三定时单元。
当然，终端设备在确定发生BWP切换时，还可以执行其他操作，在此不再逐一举例说明。
终端设备如何确定发生BWP，可以存在多种条件，举例来说，网络设备通过下行控制信息通知终端设备进行BWP切换；或，终端设备确定当前使用的BWP无法满足业务需求，主动切换BWP。当然，以上只是示例，还可能存在其他BWP的切换条件，在此不再赘述。
本申请实施例中，终端设备确定无线链路失败RLF之后，可以触发小区重建立过程，或者还可以向网络设备发送失败上报过程信令，所述失败上报过程信令中包括以下一项或多项：RLF的失败原因；发生RLF的小区的标识；发生RLF的小区组的标识。其中RLF的失败原因，例如可以为：由于信道接入过程失败导致的RLF；进一步的，失败原因还可以为：终端设备根据信道接入过程失败的次数确定的第一计数达到预设计数值。
一方面，终端设备触发小区重建立之后，可以切换到信道质量更好的小区，从而增加信道接入过程成功的概率，例如终端设备接入的主网络设备与辅网络设备均发生RLF，终端设备从而可以出发小区重建立过程。另一方面，终端设备通过发送失败上报过程信令，使得网络设备确定终端设备的网络状况，从而可以进一步触发将终端设备切换到其它小区等操作。
本申请实施例中，在终端设备通过DC方式与主网络设备以及辅网络设备连接的场景下，如果终端设备在主网络设备的主小区中确定RLF，则可以将失败上报过程信令通过辅网络设备转发至主网络设备，或者，如果终端设备在辅网络设备的辅小区中确定RLF，则可以将失败上报过程信令通过主网络设备转发至辅网络设备，本申请实施例对此并不限定。
如图5所示，为本申请实施例提供一种终端设备的结构示意图。该终端设备可以用于执行上述各方法实施例中终端设备的动作，该终端设备500包括：处理单元501和收发单元502。需要说明的是，第一计数单元、第一定时单元、第二定时单元、第三定时单元的功能可以由处理单元实现，此时，第一计数单元、第一定时单元、第二定时单元、第三定时单元可以为处理单元中的功能模块。第一计数单元、第一定时单元、第二定时单元、第三定时单元也可以为独立的功能模块，此时终端设备500也可以包括第一计数单元503、第一定时单元504、第二定时单元505、第三定时单元506。图5中，以第一计数单元、第一定时单元、第二定时单元、第三定时单元为独立的功能模块为例进行描述，其它情况不 在赘述。
收发单元502，用于发起信道接入过程；
处理单元501，用于根据信道接入过程失败的次数进行第一计数；当所述第一计数达到预设计数值时，确定无线链路失败RLF；或者，当所述第一计数达到所述预设计数值时，所述终端设备启动第二定时单元505；且当所述第二定时单元505期满时，确定RLF。
一种可能的设计中，所述处理单元501具体用于：
当确定连续K1次信道接入过程失败时，将第一计数单元503加1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元503的初始值为0；
或者，当确定连续K1次信道接入过程失败时，将第一计数单元503减1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元503的初始值为N，N为大于0的整数。
一种可能的设计中，所述确定连续K1次信道接入过程失败之后，所述处理单元501还用于：启动第一定时单元504；
在所述第一定时单元504运行期间，当确定所述信道接入过程失败时，保持所述第一计数单元503的计数值不变。
一种可能的设计中，所述处理单元501还用于：
在所述第一定时单元504运行期间，当确定连续K2次信道接入过程成功时，将所述第一定时单元504重置，和/或将所述第一计数单元503重置，K2为大于0的整数。
一种可能的设计中，在所述第二定时单元505运行期间，当确定连续信道接入过程成功的次数大于或等于K3时，确定未发生RLF，并将所述第一计数单元503重置。
一种可能的设计中，所述处理单元501还用于：
当确定连续信道接入过程成功的次数大于或等于K4时，将所述第一计数单元503重置，K4为大于0的整数；
或者，当确定所述信道接入过程失败时，启动或重启第三定时单元506；在所述第三定时单元506期满时，当所述第一计数单元503的计数值小于所述预设计数值时，将所述第一计数单元503重置。
一种可能的设计中，所述根据信道接入过程失败的次数进行第一计数之前，所述收发单元502还用于：接收来自网络设备的激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。
一种可能的设计中，所述根据信道接入过程失败的次数进行第一计数之前，所述收发单元502还用于：接收来自网络设备的配置参数；所述配置参数包括以下一项或多项：
用于所述进行第一计数的信道接入过程所处的小区；
用于所述进行第一计数的信道接入过程所对应的带宽部分BWP；
用于所述进行第一计数的信道接入过程所对应的子带宽；
用于所述进行第一计数的信道接入过程所对应的信道类型或信号类型；
用于所述进行第一计数的信道接入过程所对应的信道接入类型；
用于所述进行第一计数的信道接入过程所对应的信道接入优先级分类；
激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。一种可能的设计中，所述确定无线链路失败RLF之后，所述收发单元502还用于：
触发小区重建立过程；
或者，向网络设备发送失败上报过程信令，所述失败上报过程信令中包括以下一项或 多项：所述RLF的失败原因；发生所述RLF的小区的标识；发生所述RLF的小区组的标识。
图6是本申请实施例提供的一种终端设备的结构示意图。图6所示的终端设备可以为图5所示的终端设备的一种硬件电路的实现方式。该终端设备可适用于图3所示出的流程图中，执行上述方法实施例中终端设备的功能。为了便于说明，图6仅示出了终端设备的主要部件。如图6所示，终端设备600包括处理器601、存储器602、收发机603、天线604以及输入输出装置605。处理器601主要用于对通信协议以及通信数据进行处理，以及对整个无线通信装置进行控制，执行软件程序，处理软件程序的数据，例如用于支持无线通信装置执行上述方法实施例中所描述的动作等。存储器602主要用于存储软件程序和数据。收发机603主要用于基带信号与射频信号的转换以及对射频信号的处理。天线604主要用于收发电磁波形式的射频信号。输入输出装置605，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
需要说明的是，第一计数单元、第一定时单元、第二定时单元、第三定时单元的功能可以由处理器601实现，第一计数单元、第一定时单元、第二定时单元、第三定时单元也可以为独立的电路模块，当第一计数单元、第一定时单元、第二定时单元、第三定时单元为独立的电路模块时，具体如何实现，本申请实施例对此并不限定，在此不再赘述。
收发机603，用于发起信道接入过程；
处理器601，用于根据信道接入过程失败的次数进行第一计数；当所述第一计数达到预设计数值时，确定无线链路失败RLF；或者，当所述第一计数达到所述预设计数值时，所述终端设备启动第二定时单元；且当所述第二定时单元期满时，确定RLF。
一种可能的设计中，所述处理器601具体用于：
当确定连续K1次信道接入过程失败时，将第一计数单元加1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元的初始值为0；
或者，当确定连续K1次信道接入过程失败时，将第一计数单元减1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元的初始值为N，N为大于0的整数。
一种可能的设计中，所述确定连续K1次信道接入过程失败之后，所述处理器601还用于：启动第一定时单元；
在所述第一定时单元运行期间，当确定所述信道接入过程失败时，保持所述第一计数单元的计数值不变。
一种可能的设计中，所述处理器601还用于：
在所述第一定时单元运行期间，当确定连续K2次信道接入过程成功时，将所述第一定时单元重置，和/或将所述第一计数单元重置，K2为大于0的整数。
一种可能的设计中，在所述第二定时单元运行期间，当确定连续信道接入过程成功的次数大于或等于K3时，确定未发生RLF，并将所述第一计数单元重置。
一种可能的设计中，所述处理器601还用于：
当确定连续信道接入过程成功的次数大于或等于K4时，将所述第一计数单元重置，K4为大于0的整数；
或者，当确定所述信道接入过程失败时，启动或重启第三定时单元；在所述第三定时单元期满时，当所述第一计数单元的计数值小于所述预设计数值时，将所述第一计数单元重置。
一种可能的设计中，所述根据信道接入过程失败的次数进行第一计数之前，所述收发机603还用于：
接收来自网络设备的激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。
一种可能的设计中，所述根据信道接入过程失败的次数进行第一计数之前，所述收发机603还用于：
接收来自网络设备的配置参数；所述配置参数包括以下一项或多项：
用于所述进行第一计数的信道接入过程所处的小区；
用于所述进行第一计数的信道接入过程所对应的带宽部分BWP；
用于所述进行第一计数的信道接入过程所对应的子带宽；
用于所述进行第一计数的信道接入过程所对应的信道类型或信号类型；
用于所述进行第一计数的信道接入过程所对应的信道接入类型；
用于所述进行第一计数的信道接入过程所对应的信道接入优先级分类；
激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。
一种可能的设计中，所述确定无线链路失败RLF之后，所述收发机603还用于：
触发小区重建立过程；
或者，向网络设备发送失败上报过程信令，所述失败上报过程信令中包括以下一项或多项：所述RLF的失败原因；发生所述RLF的小区的标识；发生所述RLF的小区组的标识。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (22)

  1. 一种信道接入方法，其特征在于，包括：
    终端设备根据信道接入过程失败的次数进行第一计数；
    当所述第一计数达到预设计数值时，确定无线链路失败RLF；
    或者，当所述第一计数达到所述预设计数值时，所述终端设备启动第二定时单元,
    且当所述第二定时单元期满时，所述终端设备确定RLF。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备根据信道接入过程失败的次数进行第一计数，包括：
    当所述终端设备确定连续K1次信道接入过程失败时，将第一计数单元加1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元的初始值为0；
    或者，当所述终端设备确定连续K1次信道接入过程失败时，将第一计数单元减1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元的初始值为N，N为大于0的整数。
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备确定连续K1次信道接入过程失败之后，所述方法还包括：
    所述终端设备启动第一定时单元；
    在所述第一定时单元运行期间，当所述终端设备确定所述信道接入过程失败时，保持所述第一计数单元的计数值不变。
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    在所述第一定时单元运行期间，当所述终端设备确定连续K2次信道接入过程成功时，将所述第一定时单元重置，和/或将所述第一计数单元重置，K2为大于0的整数。
  5. 根据权利要求1所述的方法，其特征在于，在所述第二定时单元运行期间，当确定连续信道接入过程成功的次数大于或等于K3时，所述终端设备确定未发生RLF，并将所述第一计数单元重置。
  6. 根据权利要求2至4任一所述的方法，其特征在于，所述方法还包括：
    当所述终端设备确定连续信道接入过程成功的次数大于或等于K4时，将所述第一计数单元重置，K4为大于0的整数；
    或者，当所述终端设备确定所述信道接入过程失败时，所述终端设备启动或重启第三定时单元；在所述第三定时单元期满时，当所述第一计数单元的计数值小于所述预设计数值时，将所述第一计数单元重置。
  7. 根据权利要求1至6任一所述的方法，其特征在于，所述终端设备根据信道接入过程失败的次数进行第一计数之前，所述方法还包括：
    所述终端设备接收来自网络设备的激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。
  8. 根据权利要求1至6任一所述的方法，其特征在于，所述终端设备根据信道接入过程失败的次数进行第一计数之前，所述方法还包括：
    所述终端设备接收来自网络设备的配置参数；所述配置参数包括以下一项或多项：
    用于所述进行第一计数的信道接入过程所处的小区；
    用于所述进行第一计数的信道接入过程所对应的带宽部分BWP；
    用于所述进行第一计数的信道接入过程所对应的子带宽；
    用于所述进行第一计数的信道接入过程所对应的信道类型或信号类型；
    用于所述进行第一计数的信道接入过程所对应的信道接入类型；
    用于所述进行第一计数的信道接入过程所对应的信道接入优先级分类；
    激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。
  9. 根据权利要求1至8任一所述的方法，其特征在于，所述终端设备确定无线链路失败RLF之后，所述方法还包括：
    所述终端设备触发小区重建立过程；
    或者，所述终端设备向网络设备发送失败上报过程信令，所述失败上报过程信令中包括以下一项或多项：
    所述RLF的失败原因；
    发生所述RLF的小区的标识；
    发生所述RLF的小区组的标识。
  10. 一种信道接入装置，其特征在于，包括：
    收发单元，用于发起信道接入过程；
    处理单元，用于根据信道接入过程失败的次数进行第一计数；当所述第一计数达到预设计数值时，确定无线链路失败RLF；或者，当所述第一计数达到所述预设计数值时，所述终端设备启动第二定时单元，且当所述第二定时单元期满时，确定RLF。
  11. 根据权利要求10所述的信道接入装置，其特征在于，所述处理单元具体用于：
    当确定连续K1次信道接入过程失败时，将第一计数单元加1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元的初始值为0；
    或者，当确定连续K1次信道接入过程失败时，将第一计数单元减1，以进行所述第一计数；K1为大于0的整数，所述第一计数单元的初始值为N，N为大于0的整数。
  12. 根据权利要求11所述的信道接入装置，其特征在于，所述确定连续K1次信道接入过程失败之后，所述处理单元还用于：
    启动第一定时单元；
    在所述第一定时单元运行期间，当确定所述信道接入过程失败时，保持所述第一计数单元的计数值不变。
  13. 根据权利要求12所述的信道接入装置，其特征在于，所述处理单元还用于：
    在所述第一定时单元运行期间，当确定连续K2次信道接入过程成功时，将所述第一定时单元重置，和/或将所述第一计数单元重置，K2为大于0的整数。
  14. 根据权利要求10所述的信道接入装置，其特征在于，在所述第二定时单元运行期间，当确定连续信道接入过程成功的次数大于或等于K3时，确定未发生RLF，并将所述第一计数单元重置。
  15. 根据权利要求11至13任一所述的信道接入装置，其特征在于，所述处理单元还用于：
    当确定连续信道接入过程成功的次数大于或等于K4时，将所述第一计数单元重置，K4为大于0的整数；
    或者，当确定所述信道接入过程失败时，启动或重启第三定时单元；在所述第三定时单元期满时，当所述第一计数单元的计数值小于所述预设计数值时，将所述第一计数单元 重置。
  16. 根据权利要求10至15任一所述的信道接入装置，其特征在于，所述根据信道接入过程失败的次数进行第一计数之前，所述收发单元还用于：
    接收来自网络设备的激活指示，所述激活指示用于指示所述终端设备根据所述第一计数确定是否发生RLF。
  17. 根据权利要求10至15任一所述的信道接入装置，其特征在于，所述根据信道接入过程失败的次数进行第一计数之前，所述收发单元还用于：
    接收来自网络设备的配置参数；所述配置参数包括以下一项或多项：
    用于所述进行第一计数的信道接入过程所处的小区；
    用于所述进行第一计数的信道接入过程所对应的带宽部分BWP；
    用于所述进行第一计数的信道接入过程所对应的子带宽；
    用于所述进行第一计数的信道接入过程所对应的信道类型或信号类型；
    用于所述进行第一计数的信道接入过程所对应的信道接入类型；
    用于所述进行第一计数的信道接入过程所对应的信道接入优先级分类；
    激活指示，所述激活指示用于指示根据所述第一计数确定是否发生RLF。
  18. 根据权利要求10至17任一所述的信道接入装置，其特征在于，所述确定无线链路失败RLF之后，所述收发单元还用于：
    触发小区重建立过程；
    或者，向网络设备发送失败上报过程信令，所述失败上报过程信令中包括以下一项或多项：所述RLF的失败原因；发生所述RLF的小区的标识；发生所述RLF的小区组的标识。
  19. 一种信道接入装置，其特征在于，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
    所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述装置执行如权利要求1至9中任一项所述的方法。
  20. 一种终端设备，其特征在于，包括如权利要求10至18中任意一种所述的信道接入装置。
  21. 一种可读存储介质，其特征在于，包括程序或指令，当所述程序或指令被执行时，如权利要求1至9中任意一项所述的方法被执行。
  22. 一种计算机程序产品，其特征在于，包括计算机可读指令，当终端设备读取并执行所述计算机可读指令，使得所述终端设备执行如权利要求1至9中任一项所述的方法。
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