WO2021027356A1 - 一种小区接入失败后的处理方法和装置 - Google Patents

一种小区接入失败后的处理方法和装置 Download PDF

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Publication number
WO2021027356A1
WO2021027356A1 PCT/CN2020/091379 CN2020091379W WO2021027356A1 WO 2021027356 A1 WO2021027356 A1 WO 2021027356A1 CN 2020091379 W CN2020091379 W CN 2020091379W WO 2021027356 A1 WO2021027356 A1 WO 2021027356A1
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WIPO (PCT)
Prior art keywords
terminal
target cell
trigger
timer
access
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PCT/CN2020/091379
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English (en)
French (fr)
Inventor
许萌
梁靖
缪德山
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • 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
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a processing method and device after a cell access failure.
  • the uplink resource is a periodic uplink resource, and the late access of the UE will cause resource waste.
  • the UE needs to access the target cell within the pre-configured uplink resource effective time. However, if the UE misses a valid uplink resource or fails to successfully access the target cell within a specified time, there is no specific plan for how the UE should handle it.
  • the present disclosure provides a processing method and device after a cell access failure, which is suitable for RACH-LESS handover scenarios after a pre-configured uplink resource validity period is introduced, so as to solve the problem of how to deal with a terminal failure to access a cell.
  • embodiments of the present disclosure provide a processing method after a cell access failure, including:
  • the terminal accesses the target cell according to the network configuration
  • the terminal After the terminal fails to access the target cell, it performs processing according to the state of the preset timer and/or the effective state of the pre-configured uplink resource.
  • the above method enables the terminal to perform processing according to the state of the preset timer, the effective state of the pre-configured uplink resource, or a combination of the two states after failing to access the cell.
  • the effective state of the pre-configured uplink resource is invalid
  • the terminal triggers the radio resource control RRC reestablishment process
  • the terminal enters an idle state; or,
  • the terminal triggers the non-access stratum NAS recovery process
  • the terminal enters the idle state and triggers the NAS recovery process
  • the terminal triggers a random access procedure to access the target cell
  • the terminal starts the first timer to monitor the physical downlink control channel of the target cell; or,
  • the terminal starts a second timer and triggers a random access procedure to access the target cell.
  • the above method enables the terminal to perform subsequent processing operations according to the effective state of the pre-configured uplink resource after failing to access the cell.
  • the state of the preset timer is not timed out, and the valid state of the pre-configured uplink resource is invalid;
  • the terminal performs processing according to the state of the preset timer and the effective state of the pre-configured uplink resource, including:
  • the terminal triggers a random access procedure to access the target cell
  • the terminal turns off the preset timer and triggers a random access procedure to access the target cell; or,
  • the terminal resets the preset timer and triggers a random access procedure to access the target cell;
  • the terminal starts the second timer and triggers a random access procedure to access the target cell; or,
  • the terminal monitors the physical downlink control channel of the target cell; or,
  • the terminal resets the preset timer and monitors the physical downlink control channel of the target cell; or,
  • the terminal starts a first timer to monitor the physical downlink control channel of the target cell.
  • the above method enables the terminal to perform subsequent processing operations according to the state of the preset timer and the effective state of the pre-configured uplink resource after failing to access the cell.
  • the effective state of the pre-configured uplink resource is effective
  • the terminal triggers the RRC re-establishment process
  • the terminal enters an idle state; or,
  • the terminal triggers the NAS recovery process
  • the terminal enters the idle state and triggers the NAS recovery process
  • the terminal releases the uplink resources and triggers a random access procedure to access the target cell;
  • the terminal releases the uplink resource and starts a second timer; the terminal triggers a random access procedure to access the target cell; or,
  • the terminal starts the first timer to monitor the physical downlink control channel of the target cell; or,
  • the terminal sends uplink data in the uplink resource within the validity period of the uplink resource.
  • the above method enables the terminal to perform subsequent processing operations according to the state of the preset timer and the effective state of the pre-configured uplink resource after failing to access the cell.
  • the method further includes:
  • the terminal monitors the signaling of the downlink control channel scrambled with the temporary identifier of the terminal before the first timer expires, the terminal turns off the first timer; or,
  • the terminal If the first timer expires and the terminal does not monitor the signaling of the downlink control channel scrambled with the temporary identifier of the terminal, the terminal performs a preset operation;
  • the preset operation includes one of the following:
  • the above method enables the terminal to perform subsequent processing operations according to the state of the preset timer, or the effective state of the pre-configured uplink resource, or combining the states of the two after failing to access the cell.
  • the method further includes:
  • the terminal turns off the second timer; or,
  • the terminal If the second timer expires and the terminal does not access the target cell, the terminal performs a preset operation
  • the preset operation includes one of the following:
  • the above method enables the terminal to perform according to the state of the preset timer, the effective state of the pre-configured uplink resource, or the state of the preset timer and the effective state of the pre-configured uplink resource after the terminal fails to access the cell. Subsequent processing operations.
  • the method further includes:
  • the terminal performs a preset operation
  • the preset operation includes one of the following:
  • the above method enables the terminal to execute according to the state of the preset timer, the effective state of the pre-configured uplink resource, or the state of the preset timer and the effective state of the pre-configured uplink resource after the terminal fails to access the cell. Subsequent processing operations.
  • the method further includes:
  • the terminal turns off the preset timer; or,
  • the terminal If the preset timer expires and the terminal does not access the target cell, the terminal performs a preset operation
  • the preset operation includes one of the following:
  • the above method enables the terminal to perform subsequent processing operations according to the state of the preset timer and the effective state of the pre-configured uplink resource after failing to access the cell.
  • the method further includes:
  • the terminal monitors the signaling of the downlink control channel scrambled with the temporary identifier of the terminal before the preset timer expires, the terminal turns off the preset timer; or,
  • the terminal If the preset timer expires and the terminal does not monitor the signaling of the downlink control channel scrambled with the temporary identifier of the terminal, the terminal performs a preset operation;
  • the preset operation includes one of the following:
  • the above method enables the terminal to perform subsequent processing operations according to the state of the preset timer and the effective state of the pre-configured uplink resource after the terminal fails to access the cell.
  • the method further includes:
  • the terminal monitors the signaling of the downlink control channel scrambled with the temporary identifier of the terminal or receives the response message of successfully sending the uplink data during the effective period of the uplink resource, the terminal releases the uplink data.
  • the terminal If the uplink resource validity period ends and the terminal does not monitor the signaling of the downlink control channel scrambled with the temporary identifier of the terminal or does not receive the response message for successfully sending the uplink data, the terminal performs preset operating;
  • the preset operation includes one of the following:
  • the above method enables the terminal to perform subsequent processing operations according to the state of the preset timer and the effective state of the pre-configured uplink resource after failing to access the cell.
  • embodiments of the present disclosure provide a terminal, including: a processor and a memory;
  • the processor is used to read the program in the memory and execute the following process:
  • processing is performed according to the state of the preset timer and/or the effective state of the pre-configured uplink resource.
  • the effective state of the pre-configured uplink resource is invalid
  • the processor is specifically used for:
  • the second timer is started, and a random access procedure is triggered to access the target cell.
  • the state of the preset timer is not timed out, and the effective state of the pre-configured uplink resource is invalid;
  • the processor is specifically used for:
  • the effective state of the pre-configured uplink resource is effective
  • the processor is specifically used for:
  • the terminal Release the uplink resource and start a second timer; the terminal triggers a random access procedure to access the target cell; or,
  • the processor is further configured to:
  • the preset operation includes one of the following:
  • the processor is further configured to:
  • the second timer After starting the second timer and triggering the random access procedure to access the target cell, if the random access procedure is completed before the second timer expires, the second timer is turned off; or,
  • the preset operation includes one of the following:
  • the processor is further configured to:
  • the preset operation includes one of the following:
  • the processor is further configured to:
  • the preset timer After triggering the random access procedure to access the target cell, if the random access procedure is completed before the preset timer expires, the preset timer is turned off; or,
  • the preset operation includes one of the following:
  • the processor is further configured to:
  • the preset timing is turned off ⁇ ;
  • the preset operation includes one of the following:
  • the processor is further configured to:
  • the uplink resource After the uplink data is sent in the uplink resource within the validity period of the uplink resource, if during the validity period of the uplink resource, the signaling of the downlink control channel scrambled with the temporary identifier of the terminal is monitored or the successful uplink transmission is received. Data response message, the uplink resource is released;
  • the preset operation includes one of the following:
  • embodiments of the present disclosure also provide a processing device after a cell access failure, including:
  • Access module used to access the target cell according to the network configuration
  • the processing module is used for processing according to the state of the preset timer and/or the effective state of the pre-configured uplink resource after the target cell is not successfully accessed.
  • the effective state of the pre-configured uplink resource is invalid
  • the processing module is specifically used for:
  • the second timer is started, and a random access procedure is triggered to access the target cell.
  • the state of the preset timer is not timed out, and the effective state of the pre-configured uplink resource is invalid;
  • the processing module is specifically used for:
  • the effective state of the pre-configured uplink resource is effective
  • the processing module is specifically used for:
  • the terminal Release the uplink resource and start a second timer; the terminal triggers a random access procedure to access the target cell; or,
  • the processing module is further configured to:
  • the preset operation includes one of the following:
  • the processing module is further configured to:
  • the second timer After starting the second timer and triggering the random access procedure to access the target cell, if the random access procedure is completed before the second timer expires, the second timer is turned off; or,
  • the preset operation includes one of the following:
  • the processing module is further configured to:
  • the preset operation includes one of the following:
  • the processing module is further configured to:
  • the preset timer After triggering the random access procedure to access the target cell, if the random access procedure is completed before the preset timer expires, the preset timer is turned off; or,
  • the preset operation includes one of the following:
  • the processing module is further configured to:
  • the preset timing is turned off ⁇ ;
  • the preset operation includes one of the following:
  • the processing module is further configured to:
  • the uplink resource After the uplink data is sent in the uplink resource within the validity period of the uplink resource, if during the validity period of the uplink resource, the signaling of the downlink control channel scrambled with the temporary identifier of the terminal is monitored or the successful uplink transmission is received Data response message, the uplink resource is released;
  • the preset operation includes one of the following:
  • the present disclosure also provides a computer storage medium on which a computer program is stored, and when the program is executed by a processing unit, the steps of the method described in the first aspect are implemented.
  • Figure 1 is a sequence diagram of a UE performing cell handover in the related art
  • FIG. 2 is a flowchart of a processing method after a cell access failure in an embodiment of the disclosure
  • FIG. 3 is a schematic diagram of a terminal in an embodiment of the disclosure.
  • FIG. 4 is a schematic diagram of a processing device after a cell access failure in an embodiment of the disclosure.
  • a sequence diagram of cell handover for UE in related technologies may include the following steps:
  • Step 101 The UE reports a measurement report to the source cell.
  • Step 102 The source cell makes a handover decision based on the measurement report.
  • Step 103 The source cell sends a handover request message to the target cell.
  • Step 104 The target cell allows the UE to switch to the target cell, and assigns a new C-RNTI (Cell Radio Network Temporary Identifier, cell radio network temporary identifier) to the UE. If the target cell decides to configure RACH-LESS for the UE, it generates a handover command that includes indication information of RACH-skip.
  • C-RNTI Cell Radio Network Temporary Identifier, cell radio network temporary identifier
  • the handover command may also include TA (Timing Advance) information.
  • the target cell may also allocate pre-configured uplink resources to the UE, and the handover command may also include pre-configured uplink resource information.
  • Step 105 The target cell sends a handover request response carrying a handover command to the source cell.
  • Step 106 The source cell sends a handover command to the UE.
  • Step 107 The UE starts the timer T304, configures the UE according to the handover command, and synchronizes to the target cell; and sends an uplink message according to the TA information carried in the handover command.
  • Step 108 If the target cell allocates pre-configured uplink resources to the UE, the UE sends uplink data on the pre-configured uplink resources, that is, the UE starts to send a handover complete message to the target cell at the first valid PUSCH.
  • Step 109 The UE monitors the PDCCH of the target cell.
  • Step 110 The UE stops the timer T304 when it monitors the signaling of the PDCCH scrambled with the C-RNTI of the UE.
  • step 108 may also be performed as follows: if the target cell does not allocate pre-configured uplink resources for the UE, the UE monitors the PDCCH message of the target cell. Then step 109 may be performed as the UE stops the timer T304 when it monitors the signaling of the PDCCH scrambled with the C-RNTI of the UE. Then step 110 may be performed to send a handover complete message for the UE according to the uplink resource allocated by the PDCCH.
  • step 108 may be performed to trigger the RRC re-establishment process for the UE.
  • embodiments of the present disclosure provide a processing method after a cell access failure.
  • this method for example, when the terminal is performing cell handover, or when a terminal configured with dual connectivity changes in the PSCell of the primary cell of the secondary cell group, if the terminal fails to access the target PCell or PScell cell, the terminal will perform the handover control or synchronization reset. The status of the configured timer, the valid status of the pre-configured uplink resources, or the processing according to the status of both.
  • the above method enables the UE to perform corresponding processing according to the state of the preset timer and the effective state of the pre-configured uplink resources when the UE fails to access the target cell.
  • the terminal is a device with wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (For example, airplanes, balloons, satellites, etc.).
  • the terminal may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal, an augmented reality (Augmented Reality, AR) terminal, an industrial control (Industrial Control)
  • FIG. 2 is a flowchart of a processing method after a cell access failure in an embodiment of the disclosure, which may include the following steps:
  • Step 201 The terminal accesses the target cell according to the network configuration.
  • the terminal may perform the handover process or the primary cell PCell synchronization reconfiguration process according to the handover command or the synchronization reconfiguration command. Or, it can also be the process of PSCell change or synchronization reconfiguration of the terminal configured with dual connectivity, but it is not limited to the above two scenarios. It can be applied to scenarios where the UE needs to perform uplink synchronization, such as downlink data reaching uplink out of synchronization, adding secondary cells, etc. .
  • Step 202 After the terminal fails to access the target cell, it performs processing according to the state of the preset timer and/or the effective state of the pre-configured uplink resource.
  • the preset timer may be a timer for controlling handover or a timer for controlling synchronous reconfiguration or a timer for controlling PSCell change, such as a T304 timer or a T307 timer.
  • the above method enables the UE to process according to the state of the preset timer, or the effective state of the pre-configured uplink resource, or a combination of the two states after the UE fails to access the cell.
  • step 202 When the above step 202 is implemented, it can be processed according to the following three different situations, which will be described in detail below.
  • the target cell may allocate uplink resources for the terminal, and carry the pre-configured uplink resource information in the handover command.
  • the terminal sends uplink data according to the configured uplink resource during the valid period of the pre-configured uplink resource. If the terminal does not receive the PDCCH order scrambled with the C-RNTI of the UE during the valid period of the uplink resource, or does not receive the uplink data transmission
  • a successful response message such as an ARQ or HARQ process ACK response message, indicates that the terminal has not successfully accessed the target cell.
  • the terminal can perform processing according to any one of the following methods 1 to 7:
  • Manner 1 The terminal triggers the RRC re-establishment process.
  • the terminal selects a reestablished cell and triggers the reestablishment process to restore the RRC connection in the selected cell. For example, the terminal selects to initiate the RRC reestablishment process in the source cell to restore the RRC connection in the source cell.
  • Method 2 The terminal enters the idle state.
  • the terminal when the terminal accesses the target cell according to the network configuration and fails to access the target cell during the valid period of the pre-configured uplink resources, the terminal enters the idle state, and the UE enters the idle state and can reselect the cell to access.
  • Method 3 The terminal triggers the non-access layer NAS recovery process.
  • the terminal When the terminal accesses the target cell according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resources, the terminal can trigger the NAS recovery process, and the NAS triggers the new cell access process.
  • Method 4 The terminal enters the idle state and triggers the NAS recovery process.
  • the RRC layer releases the air interface connection and enters the idle state, and informs the NAS to trigger the NAS recovery process, which is triggered by the NAS New cell access process.
  • Manner 5 The terminal triggers a random access procedure to access the target cell.
  • the terminal when the terminal accesses the target cell according to the network configuration, it fails to access the target cell during the valid period of the pre-configured uplink resources. If the target cell allocates dedicated random access resources to the terminal, the terminal triggers non-competitive random access Access process, that is, sending a dedicated preamble sequence to the target cell, or on the beam that the UE selects to access in the multi-beam scenario, and the network allocates dedicated random access resources to the UE, then the non-contention random access process is triggered on the beam , Otherwise it triggers the contention random access process. If the target cell does not allocate dedicated random access resources for the terminal, the terminal triggers a competitive random access process, that is, the terminal randomly selects a preamble sequence to send to the target cell. Or, the terminal can ignore the dedicated random access resources allocated by the target cell, and directly trigger the competing random access process.
  • non-competitive random access Access process that is, sending a dedicated preamble sequence to the target cell, or on the beam that the UE selects to
  • the terminal needs to perform a preset operation.
  • the preset operation includes one of the following: entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process; triggering the RRC reconstruction process.
  • the target cell does not allocate random access resources for the terminal, and the terminal triggers a competing random access process to access the target cell, and sends a randomly selected preamble sequence to the target cell.
  • the terminal triggers the RRC reestablishment process.
  • the target cell allocates dedicated random access resources to the terminal, and the terminal triggers a non-competitive random access process to access the target cell, and sends a dedicated preamble sequence to the target cell.
  • the RRC layer of the terminal receives the indication information of random access failure sent by the MAC layer, it enters the idle state.
  • Manner 6 The terminal starts the first timer to monitor the physical downlink control channel of the target cell.
  • the terminal when the target cell allows the terminal to switch to the target cell, the terminal will be assigned a new UE ID, that is, a new C-RNTI (Cell-Radio Network Temporary Identifier, cell radio network temporary identifier).
  • C-RNTI Cell-Radio Network Temporary Identifier, cell radio network temporary identifier
  • the first timer is turned off.
  • the first timer duration is configured to the UE through signaling by the network or a preset value specified by the protocol. For example, when the terminal accesses the target cell according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resources, the first timer is started to monitor the physical downlink control channel of the target cell. Before the first timer expires, if the terminal monitors the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, the first timer is turned off.
  • the terminal If the first timer expires and the terminal does not monitor the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, it indicates that the terminal has not successfully accessed the target cell. At this time, the terminal performs a preset operation. Specifically, the preset operation includes one of the following: entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process; triggering the RRC reconstruction process.
  • the terminal accesses the target cell according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource, the terminal starts the first timer to monitor the physical downlink control channel of the target cell.
  • the first timer expires, and the terminal does not monitor the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, the RRC re-establishment process is triggered.
  • Manner 7 The terminal starts the second timer and triggers a random access procedure to access the target cell.
  • the second timer is started and the random access process is triggered to access the target cell. Specifically, if the target cell allocates dedicated random access resources to the terminal, a non-competitive random access process is triggered, or in a multi-beam scenario, the UE selects the beam for access, and the network allocates dedicated random access to the UE Resource, the non-contention random access process is triggered on the beam, otherwise, the contention random access is triggered. If the target cell does not allocate dedicated random access resources for the terminal, a competing random access process is triggered. Or, the terminal can ignore whether the target cell allocates dedicated random access resources, and only trigger the competing random access process.
  • the second timer duration is configured by the network to the UE through signaling or a preset value specified by the protocol.
  • the second timer is turned off.
  • the target cell allocates dedicated random access resources for the terminal.
  • the terminal accesses the target cell according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource, the terminal starts the second timer and triggers a non-contention random access process to access the target cell.
  • the second timer is turned off.
  • the terminal performs a preset operation.
  • the preset operation is one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • the target cell allocates random access resources to the terminal.
  • the terminal accesses the target cell according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resources, the terminal starts the second timer and triggers the random access process of contention to be included in the target cell.
  • the second timer expires, the terminal does not access the target cell, the terminal enters an idle state and triggers the NAS recovery process.
  • Case 2 The preset timer has not expired, and the pre-configured uplink resource is invalid.
  • the terminal sends uplink data on the configured uplink resource during the effective period of the uplink resource allocated by the target cell to the terminal, but the terminal does not receive the PDCCH message scrambled with the terminal's C-RNTI, or the uplink data is not successfully received
  • the terminal fails to access the target cell.
  • the terminal can perform processing according to any one of methods 1 to 7:
  • Method 1 The terminal triggers a random access procedure to access the target cell.
  • the terminal triggers the random access process. If the terminal completes the random access process before the preset timer expires, the UE successfully accesses the target cell, and the preset timer can be turned off.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource. At this time, T304 does not time out and the pre-configured uplink resource is invalid.
  • the terminal triggers the random access process to access the target cell, the terminal completes random access before the timeout of T304, and successfully accesses the target cell, the terminal turns off T304.
  • the terminal performs a preset operation.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource. At this time, T304 does not time out and the pre-configured uplink resource is invalid.
  • the terminal triggers the random access process to access the target cell, T304 times out, the random access process is not completed, and the terminal does not successfully access the target cell, then the RRC reestablishment process is triggered.
  • the MAC layer may also be controlled to determine whether the random access process is successful and whether the terminal successfully accesses the target cell. Specifically, if the RRC layer of the terminal receives the random access failure indication information sent by the MAC layer, the terminal performs a preset operation.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource, T304 does not time out, and the pre-configured uplink resource is invalid.
  • the terminal triggers the random access process to access the target cell, and the RRC layer of the terminal receives the indication information of random access failure sent by the MAC layer.
  • the RRC learns that the random access fails, it enters the idle state.
  • Manner 2 The terminal turns off the preset timer and triggers a random access process to access the target cell.
  • the terminal triggers a non-competitive random access process, that is, sending a dedicated preamble sequence to the target cell, or on the beam that the UE selects to access in the multi-beam scenario.
  • the network allocates dedicated random access resources for the UE, and then triggers the non-contention random access process on the beam, otherwise triggers the contention random access.
  • the terminal triggers a competing random access process, that is, the terminal randomly selects a preamble sequence to send to the target cell.
  • the terminal can ignore the random access resources allocated by the target cell and directly trigger the competing random access process.
  • the preset operation includes one of the following: entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process; triggering the RRC reconstruction process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource. At this time, T304 does not time out and the pre-configured uplink resource is invalid.
  • the terminal triggers the random access process to access the target cell, and the RRC receives the random access failure indication information sent by the MAC layer, and then triggers the RRC reestablishment process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource. At this time, T304 does not time out and the pre-configured uplink resource is invalid. The terminal triggers a random access procedure to access the target cell, and successfully accesses the target cell.
  • Manner 3 The terminal resets the preset timer and triggers a random access procedure to access the target cell.
  • the terminal triggers a non-competitive random access process, that is, sending a dedicated preamble sequence to the target cell, or on the beam that the UE selects to access in the multi-beam scenario.
  • the network allocates dedicated random access resources for the UE, and then triggers the non-contention random access process on the beam, otherwise triggers the contention random access.
  • the terminal triggers a competitive random access process, that is, the terminal randomly selects a preamble sequence to send to the target cell.
  • the terminal can ignore the random access resources allocated by the target cell and directly trigger the competing random access process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource. At this time, T304 does not time out and the pre-configured uplink resource is invalid.
  • the terminal resets the preset timer, that is, resets T304, and triggers the random access procedure to access the target cell.
  • the preset timer is turned off. If the preset timer expires and the terminal fails to access the target cell, the preset operation is performed.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • Manner 4 The terminal starts the second timer and triggers a random access procedure to access the target cell.
  • the terminal if the target cell allocates dedicated random access resources to the terminal, the terminal triggers a non-competitive random access process, that is, sending a dedicated preamble sequence to the target cell, or on the beam that the UE selects to access in the multi-beam scenario, The network allocates dedicated random access resources for the UE, and then triggers the non-contention random access process on the beam, otherwise triggers the contention random access. If the target cell does not allocate dedicated random access resources for the terminal, the terminal triggers a competitive random access process, that is, the terminal randomly selects a preamble sequence to send to the target cell. Alternatively, the terminal can ignore the random access resources allocated by the target cell and directly trigger the competing random access process.
  • the second timer duration is configured by the network to the UE through signaling or a preset value specified by the protocol.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource, the second timer is started to trigger the random access process to access the target cell. If the terminal completes the random access process before the second timer expires and the terminal successfully accesses the target cell, the second timer is turned off. If the second timer expires and the target cell is not successfully accessed, the preset operation is performed.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource, starts the second timer, and triggers the random access process to access the target cell. Before the second timer expires, if the random access process is not completed and the terminal fails to access the target cell, the terminal enters an idle state.
  • Manner 5 The terminal monitors the physical downlink control channel of the target cell.
  • the preset timer is closed. If the preset timer expires and the terminal does not monitor the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, the preset operation is performed.
  • the preset operations include: entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process; triggering the RRC reconstruction process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource, and the terminal monitors the physical downlink control channel of the target cell. If the terminal monitors the signaling of the downlink control channel scrambled with the terminal's C-RNTI before the preset timer T304 expires, the preset timer is turned off.
  • Manner 6 The terminal resets the preset timer and monitors the physical downlink control channel of the target cell.
  • the preset timer is closed.
  • the preset timer expires, and the terminal does not monitor the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, and then executes the preset operation.
  • the preset operations include: entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process; triggering the RRC reconstruction process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resources, the terminal resets the preset timer, that is, resets T304, and monitors the physical downlink control channel of the target cell. If the terminal does not monitor the signaling of the downlink control channel scrambled with the terminal's C-RNTI before the preset timer T304 expires, the terminal triggers the NAS recovery process.
  • Manner 7 The terminal starts the first timer to monitor the physical downlink control channel of the target cell.
  • the first timer is turned off.
  • the first timer duration is configured to the UE through signaling by the network or a preset value specified by the protocol.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resources, starts the first timer, and the additional terminal turns off the preset timer, which means turning off T304, and the terminal monitors the target cell The physical downlink control channel. Before the first timer expires, if the terminal monitors the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, the first timer is turned off.
  • the terminal If the first timer expires and the terminal does not monitor the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, it indicates that the terminal has not successfully accessed the target cell. At this time, the terminal performs a preset operation. Specifically, the preset operation includes one of the following: entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process; triggering the RRC reconstruction process.
  • the terminal performs the RACH-less handover process according to the network configuration, and fails to access the target cell during the valid period of the pre-configured uplink resource, turns off T304, turns on the first timer, and monitors the physical downlink control channel of the target cell.
  • the first timer expires, and the terminal does not monitor the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, the RRC re-establishment process is triggered.
  • Case 3 The preset timer expires and the pre-configured uplink resource is valid.
  • the terminal fails to access the target cell before the preset timer expires. At this time, the uplink resources pre-configured by the target cell for the terminal are still valid, and the terminal can perform processing according to any one of methods 1 to 8:
  • Manner 1 The terminal triggers the RRC re-establishment process.
  • the terminal fails to access the target cell when accessing the target cell according to the network configuration. If the preset timer expires and the pre-configured uplink resource is valid, the terminal triggers the RRC reestablishment process, for example, the terminal performs the RACH-less handover process. T304 times out, the terminal fails to access the target cell, and the validity period of the uplink resource pre-configured by the network side for the terminal has not reached the end of the validity window, and the terminal triggers RRC reconstruction.
  • Method 2 The terminal enters the idle state.
  • the terminal fails to access the target cell when accessing the target cell according to the network configuration. If the preset timer expires and the pre-configured uplink resource is valid, it enters the idle state. For example, the terminal performs the RACH-less handover process and T304 times out , The terminal fails to access the target cell, and the validity period of the uplink resource pre-configured by the network side for the terminal has not reached the end of the validity window, and the terminal enters an idle state.
  • Method 3 The terminal triggers the NAS recovery process.
  • the terminal when the terminal accesses the target cell according to the network configuration, it fails to access the target cell. If the preset timer expires, the pre-configured uplink resource is valid, and the terminal triggers the NAS recovery process. For example, the terminal performs the RACH-less handover process, and T304 times out If the terminal fails to access the target cell, and the validity period of the uplink resource pre-configured by the network side for the terminal has not reached the end of the validity window, the terminal triggers the NAS recovery process.
  • Method 4 The terminal enters the idle state and triggers the NAS recovery process.
  • the terminal accesses the target cell according to the network configuration, it fails to access the target cell. If the preset timer expires, the pre-configured uplink resources are valid.
  • the NAS recovery process is triggered, for example, the terminal performs RACH-less During the handover process, T304 times out, the terminal fails to access the target cell, and the validity period of the uplink resource pre-configured for the terminal on the network side has not reached the end of the valid window, the terminal enters the idle state and triggers the NAS recovery process.
  • Manner 5 The terminal releases the uplink resources and triggers a random access procedure to access the target cell.
  • the terminal fails to access the target cell when accessing the target cell according to the network configuration. If the preset timer expires, the pre-configured uplink resource is valid and the terminal needs to release the uplink resource. And trigger a random access process to access the target cell. For example, when the terminal performs the RACH-less handover process, T304 times out, the terminal fails to access the target cell, and the validity period of the uplink resource pre-configured by the network for the terminal has not reached the end of the valid window, the terminal releases the uplink resource and triggers random access Access the target cell during the entry process.
  • the terminal if the target cell allocates dedicated random access resources to the terminal, the terminal triggers a non-contention random access process, that is, sending a dedicated preamble sequence to the target cell, or on the beam that the UE selects to access in the multi-beam scenario, the network If a dedicated random access resource is allocated to the UE, a non-contention random access process is triggered on the beam, otherwise a contention random access process is triggered. If the target cell does not allocate dedicated random access resources to the terminal, the terminal triggers a competitive random access process, that is, the terminal randomly selects a preamble sequence to send to the target cell. Alternatively, the terminal can ignore the random access resources allocated by the target cell and directly trigger the competing random access process.
  • the terminal RRC receives the random access failure indication information sent by the MAC (Media Access Control) layer, it means that the terminal has failed to randomly access the target cell.
  • the terminal needs to perform a preset operation.
  • the preset operation includes one of the following: entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process; triggering the RRC reconstruction process.
  • the target cell does not allocate random access resources for the terminal, and the terminal triggers a competing random access process to access the target cell, and sends a randomly selected preamble sequence to the target cell.
  • the terminal RRC receives the random access failure indication information sent by the MAC layer, the terminal triggers the RRC reestablishment process.
  • the target cell allocates dedicated random access resources to the terminal, and the terminal triggers a non-contention random access procedure to access the target cell, and sends a dedicated preamble sequence to the target cell.
  • the terminal RRC receives the random access failure indication information sent by the MAC layer, it enters the idle state.
  • Manner 6 The terminal releases the uplink resource and starts a second timer; the terminal triggers a random access procedure to access the target cell.
  • the terminal fails to access the target cell when accessing the target cell according to the network configuration. If the preset timer expires, the pre-configured uplink resource is valid and the terminal needs to release the uplink resource. And the terminal starts the second timer and triggers a random access procedure to access the target cell.
  • the second timer duration is configured by the network to the UE through signaling or a preset value specified by the protocol.
  • the target cell allocates dedicated random access resources to the terminal, a non-competitive random access process is triggered, or in a multi-beam scenario, the UE selects the beam for access, and the network allocates dedicated random access resources to the UE , The non-contention random access process is triggered on the beam, otherwise the contention random access process is triggered. If the target cell does not allocate dedicated random access resources for the terminal, a competing random access process is triggered. Alternatively, the terminal can ignore whether the target cell allocates random access resources, and only trigger the competing random access process.
  • the second timer is turned off.
  • the target cell allocates dedicated random access resources to the terminal.
  • the terminal executes the RACH-less handover process, T304 times out, the terminal fails to access the target cell, starts the second timer, and triggers a non-contention random access process to access the target cell.
  • the second timer is turned off.
  • the terminal performs a preset operation.
  • the preset operation is one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • the target cell does not allocate dedicated random access resources for the terminal.
  • the terminal executes the RACH-less handover process, and T304 times out, the terminal fails to access the target cell, starts the second timer, and triggers the random access process of contention to be counted in the target cell.
  • the terminal does not access the target cell when the second timer expires, the terminal triggers the NAS recovery process.
  • Manner 7 The terminal starts the first timer to monitor the physical downlink control channel of the target cell.
  • the terminal fails to access the target cell when accessing the target cell according to the network configuration. If the preset timer expires, the pre-configured uplink resource is valid and the terminal needs to release the uplink resource. And the terminal starts the first timer to monitor the physical downlink control channel of the target cell.
  • the first timer duration is configured to the UE through signaling by the network or a preset value specified by the protocol.
  • the terminal monitors the signaling of the downlink control channel scrambled with the terminal's C-RNTI before the first timer expires, indicating that the terminal successfully accesses the target cell, the first timer is turned off.
  • the terminal performs the RACH-less handover process, T304 times out, the terminal fails to access the target cell, starts the first timer, and monitors the physical downlink control channel of the target cell. Before the first timer expires, if the terminal monitors the signaling of the downlink control channel scrambled with the terminal's C-RNTI, the first timer is turned off.
  • the terminal performs a preset operation.
  • the preset operation includes one of the following: entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process; triggering the RRC reconstruction process.
  • the terminal performs the RACH-less handover process, T304 times out, the terminal fails to access the target cell, starts the first timer, and monitors the physical downlink control channel of the target cell.
  • the first timer expires, and the terminal does not monitor the signaling of the downlink control channel scrambled with the C-RNTI of the terminal, the RRC re-establishment process is triggered.
  • Manner 8 The terminal sends uplink data in the uplink resource within the validity period of the uplink resource.
  • the terminal when the validity period of the uplink resource ends, the terminal performs one of the following operations: enters the idle state; triggers the NAS recovery process; enters the idle state and triggers the NAS recovery process; triggers the RRC reconstruction process;
  • the terminal when the terminal performs the RACH-less handover process, T304 times out, and the terminal fails to access the target cell and the pre-configured uplink resource is valid, the terminal sends uplink data in the uplink resource within the validity period of the uplink resource. If the terminal receives a PDCCH message scrambled with the terminal’s CRNTI or a response to a successful uplink data transmission, such as an ACK response message in the HARQ or ARQ process, the terminal successfully accesses the target cell; otherwise, the terminal fails after the uplink resource fails If the terminal fails to access the target cell, the terminal triggers the RRC re-establishment process.
  • Embodiment 1 RACH-less handover triggers a random access procedure.
  • Step 1 The source cell transparently transmits a handover command to the UE, where the handover command includes the uplink resource pre-configured by the target cell for the UE, and the pre-configured uplink resource is valid for a specified time.
  • Step 2 The UE starts the timer T304 after receiving the handover command, and initiates uplink transmission on the uplink resource pre-configured for the UE on the network side within a specified time to access the target cell.
  • Step 3 The UE fails to access the target cell within the specified time. For example, the PDCCH command scrambled with the UE C-RNTI is not received from the network side, and T304 has not timed out.
  • Step 4 The UE triggers the random access procedure.
  • Step 5 If the random access process is successful, turn off the timer T304, otherwise, if T034 times out and the terminal fails to access the target cell, perform a preset operation.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • step 4 may also be executed as turning off the timer T304, turning on the second timer, and the UE triggers the random access procedure.
  • step 5 can be performed as follows: if the UE successfully accesses the target cell before the second timer expires, the second timer is turned off.
  • step 5 may also be executed as if the second timer expires and the UE does not access the target cell, a preset operation is performed.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • step 4 can also be executed as restarting the timer T304 to trigger the random access process.
  • step 5 can be performed as follows: if the UE successfully accesses the target cell before T304 times out, turn off T304.
  • step 5 may also be executed as if T304 times out and the UE fails to access the target cell, then perform a preset operation.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • step 4 can also be executed as turning off the timer T304 to trigger the random access process.
  • step 5 may be executed as if the RRC receives the random access failure indication information sent by the MAC layer, it executes a preset operation.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • Embodiment 2 RACH-less handover triggers monitoring of the PDCCH of the target cell.
  • Step 1 The source cell transparently transmits a handover command to the UE, where the handover command includes the uplink resource pre-configured by the target cell for the UE, and the pre-configured uplink resource is valid for a specified time.
  • Step 2 The UE starts the timer T304 after receiving the handover command, and initiates uplink transmission on the uplink resource pre-configured for the UE on the network side within a specified time to access the target cell.
  • Step 3 The UE fails to access the target cell within the specified time. For example, the PDCCH command scrambled with the UE C-RNTI is not received from the network side, and T304 has not timed out.
  • Step 4 Monitor the PDCCH of the target cell.
  • Step 5 If the PDCCH order scrambled with the C-RNTI of the UE is monitored, turn off T304.
  • step 5 can also be executed as if T304 times out and the PDCCH order scrambled with the C-RNTI of the UE is not monitored, a preset operation is executed.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • step 4 may also be executed as turning off the timer T304, turning on the first timer, and monitoring the PDCCH of the target cell.
  • step 5 may be executed as if the PDCCH order scrambled with the C-RNTI of the UE is monitored, the first timer is turned off.
  • step 5 may also be executed as if T304 times out and the PDCCH order scrambled with the C-RNTI of the UE is not monitored, a preset operation is executed.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • step 4 can also be executed as restarting the timer T304 to monitor the PDCCH of the target cell.
  • step 5 can be executed as if the PDCCH order scrambled with the C-RNTI of the UE is monitored, then T304 is turned off.
  • step 5 may also be executed as if T304 times out and the PDCCH order scrambled with the C-RNTI of the UE is not monitored, a preset operation is executed.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • Embodiment 3 RACH-less handover, triggering the RRC reconstruction process or the NAS recovery process or entry idle state.
  • Step 1 The source cell transparently transmits a handover command to the UE, where the handover command includes the uplink resource pre-configured by the target cell for the UE, and the pre-configured uplink resource is valid for a specified time.
  • Step 2 The UE starts the timer T304 after receiving the handover command, and initiates uplink transmission on the uplink resource pre-configured for the UE on the network side within a specified time to access the target cell.
  • Step 3 The UE fails to access the target cell within the specified time. For example, the PDCCH command scrambled with the UE C-RNTI is not received from the network side, and T304 has not timed out.
  • Step 4 Turn off the T304 timer and perform the preset operation.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • Embodiment 4 RACH-less handover triggers monitoring of the PDCCH of the target cell.
  • Step 1 The source cell transparently transmits a handover command to the UE, where the handover command includes the uplink resource pre-configured by the target cell for the UE, and the pre-configured uplink resource is valid for a specified time.
  • Step 2 The UE starts the timer T304 after receiving the handover command, and initiates uplink transmission on the uplink resource pre-configured for the UE on the network side within a specified time to access the target cell.
  • Step 3 T304 timeout UE fails to access the target cell, the pre-configured uplink resources are still valid.
  • Step 4 Release the uplink resources, start the first timer, and monitor the PDCCH of the target cell.
  • Step 5 If the PDCCH order scrambled with the C-RNTI of the UE is monitored, the first timer is turned off.
  • step 5 may also be executed as if the PDCCH order scrambled with the C-RNTI of the UE is not monitored when the first timer expires, then a preset operation is executed.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • step 4 may also be performed to release uplink resources and perform a preset operation.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • step 4 may also be executed to send an uplink command according to the configured uplink resource within the validity period of the pre-configured uplink resource.
  • step 5 may be executed as receiving the PDCCH signaling scrambled with the C-RNTI of the UE or the response message for successfully sending the uplink data, such as the ACK response in the HARQ or ARQ process, and the access is successful.
  • step 5 may also be performed as if the PDCCH signaling scrambled with the C-RNTI of the UE is not received within the effective time of the uplink resource, then the access to the target cell is not successful, and the preset operation is performed.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • step 4 can also be executed as if the target cell is not accessed within the uplink resource effective time, the second timer is started to trigger the random access process. Then step 5 can be executed as if the random access process is completed before the second timer expires, the second timer is turned off, and the access is successful. Otherwise, step 5 can also be executed as: the second timer expires and the random access is not successful, then the preset operation is performed, where the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state , And trigger the NAS recovery process; trigger the RRC reconstruction process;.
  • step 4 can also be executed to trigger a random access procedure.
  • step 5 may be executed as if the RRC receives the random access indication information sent by the MAC layer, it executes a preset operation.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • Embodiment 5 T304 is not turned on, triggering to monitor the PDCCH of the target cell.
  • Step 1 The source cell transparently transmits a handover command to the UE, where the handover command includes the uplink resource pre-configured by the target cell for the UE, and the pre-configured uplink resource is valid for a specified time.
  • Step 2 The UE ignores the timer T304 after receiving the handover command, and initiates uplink transmission on the uplink resources pre-configured for the UE on the network side within a specified time to access the target cell.
  • Step 3 The UE fails to access the target cell within the specified valid time, for example, it fails to receive the PDCCH order scrambled with the C-RNTI of the UE sent by the network side.
  • Step 4 Start the first timer and monitor the PDCCH of the target cell.
  • Step 5 If the PDCCH order scrambled with the C-RNTI of the UE is monitored before the first timer expires, the first timer is turned off.
  • step 5 may also be executed as if the first timer expires and the PDCCH command scrambled with the C-RNTI of the UE is not monitored, a preset operation is executed.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • step 4 can also be executed to trigger a random access procedure.
  • step 5 may be executed as if the RRC receives the random access indication information sent by the MAC layer, it executes a preset operation.
  • the preset operation includes one of the following: enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process; trigger the RRC reconstruction process.
  • step 4 may also be executed as starting a second timer, and the UE triggers a random access procedure.
  • step 5 can be performed as follows: if the UE successfully accesses the target cell before the second timer expires, the second timer is turned off.
  • step 5 may also be executed as if the second timer expires and the UE does not access the target cell, a preset operation is performed.
  • the preset operation includes one of the following: triggering the RRC reconstruction process; entering the idle state; triggering the NAS recovery process; entering the idle state and triggering the NAS recovery process.
  • step 4 can also be executed to trigger the RRC re-establishment process. Or, enter the idle state; trigger the NAS recovery process; enter the idle state and trigger the NAS recovery process.
  • the embodiments of the present disclosure also provide a terminal. Since the terminal is the terminal in the method in the embodiment of the present invention, and the principle of the terminal to solve the problem is similar to the method, the implementation of the terminal can refer to the implementation of the method, and the repetition will not be repeated.
  • a terminal of an embodiment of the present disclosure includes:
  • the processor 3100 the memory 3101, and the transceiver 3102.
  • the processor 3100 is responsible for managing the bus architecture and general processing, and the memory 3101 can store data used by the processor 3100 when performing operations.
  • the transceiver 3102 is used to receive and send data under the control of the processor 3100.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors 3100 represented by the processor 3100 and various circuits of the memory represented by the memory 3101 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the processor 3100 is responsible for managing the bus architecture and general processing, and the memory 3101 can store data used by the processor 3100 when performing operations.
  • the process disclosed in the embodiment of the present invention may be applied to the processor 3100 or implemented by the processor 3100.
  • each step of the signal processing flow can be completed by hardware integrated logic circuits in the processor 3100 or instructions in the form of software.
  • the processor 3100 may be a general-purpose processor 3100, a digital signal processor 3100, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, which can implement or execute the implementation of the present invention
  • the general-purpose processor 3100 may be a microprocessor 3100 or any conventional processor 3100 or the like.
  • the steps of the method disclosed in the embodiment of the present invention may be directly embodied as being executed and completed by the hardware processor 3100, or executed and completed by a combination of hardware and software modules in the processor 3100.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 3101, and the processor 3100 reads the information in the memory 3101 and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 3100 is configured to read the program in the memory 3101 and execute the following process:
  • processing is performed according to the state of the preset timer and/or the effective state of the pre-configured uplink resource.
  • the validity status of the pre-configured uplink resource is invalid
  • the processor 3100 is specifically configured to:
  • the second timer is started, and a random access procedure is triggered to access the target cell.
  • the state of the preset timer is not timed out, and the valid state of the pre-configured uplink resource is invalid;
  • the processor 3100 is specifically configured to:
  • the effective state of the pre-configured uplink resource is effective
  • the processor 3100 is specifically configured to:
  • the terminal Release the uplink resource and start a second timer; the terminal triggers a random access procedure to access the target cell; or,
  • processor 3100 is further configured to:
  • the preset operation includes one of the following:
  • processor 3100 is further configured to:
  • the second timer After starting the second timer and triggering the random access procedure to access the target cell, if the random access procedure is completed before the second timer expires, the second timer is turned off; or,
  • the preset operation includes one of the following:
  • processor 3100 is further configured to:
  • the preset operation includes one of the following:
  • processor 3100 is further configured to:
  • the preset timer After triggering the random access procedure to access the target cell, if the random access procedure is completed before the preset timer expires, the preset timer is turned off; or,
  • the preset operation includes one of the following:
  • processor 3100 is further configured to:
  • the preset timing is turned off ⁇ ;
  • the preset operation includes one of the following:
  • processor 3100 is further configured to:
  • the uplink resource After the uplink data is sent in the uplink resource within the validity period of the uplink resource, if during the validity period of the uplink resource, the signaling of the downlink control channel scrambled with the temporary identifier of the terminal is monitored or the successful uplink transmission is received Data response message, the uplink resource is released;
  • the preset operation includes one of the following:
  • the embodiment of the present invention also provides a processing device after a cell access failure, because this device is the device in the method in the embodiment of the present invention, and the principle of the device to solve the problem is the same as that The method is similar, so the implementation of the device can refer to the implementation of the method, and the repetition will not be repeated.
  • an embodiment of the present disclosure also provides a processing device after a cell access failure, the device including:
  • the access module 401 is used to access the target cell according to the network configuration
  • the processing module 402 is configured to perform processing according to the state of the preset timer and/or the effective state of the pre-configured uplink resource after the target cell is not successfully accessed.
  • the effective state of the pre-configured uplink resource is invalid
  • the processing module 402 is specifically configured to:
  • the second timer is started, and a random access procedure is triggered to access the target cell.
  • the state of the preset timer is not timed out, and the effective state of the pre-configured uplink resource is invalid;
  • the processing module 402 is specifically configured to:
  • the effective state of the pre-configured uplink resource is effective
  • the processing module 402 is specifically configured to:
  • the terminal Release the uplink resource and start a second timer; the terminal triggers a random access procedure to access the target cell; or,
  • processing module 402 is further configured to:
  • the preset operation includes one of the following:
  • processing module 402 is further configured to:
  • the second timer After starting the second timer and triggering the random access procedure to access the target cell, if the random access procedure is completed before the second timer expires, the second timer is turned off; or,
  • the preset operation includes one of the following:
  • processing module 402 is further configured to:
  • the preset operation includes one of the following:
  • processing module 402 is further configured to:
  • the preset timer After triggering the random access procedure to access the target cell, if the random access procedure is completed before the preset timer expires, the preset timer is turned off; or,
  • the preset operation includes one of the following:
  • processing module 402 is further configured to:
  • the preset timing is turned off ⁇ ;
  • the preset operation includes one of the following:
  • processing module 402 is further configured to:
  • the uplink resource After the uplink data is sent in the uplink resource within the validity period of the uplink resource, if within the validity period of the uplink resource, the signaling of the downlink control channel scrambled with the temporary identifier of the terminal is monitored or the successful uplink transmission is received. Data response message, the uplink resource is released;
  • the preset operation includes one of the following:
  • the embodiments of the present disclosure also provide a computer-readable non-volatile storage medium, including program code, when the program code runs on a computing terminal, the program code is used to make the computing terminal execute the foregoing implementation of the present invention Example of the steps of the method for reporting channel state information.
  • the present disclosure can also be implemented by hardware and/or software (including firmware, resident software, microcode, etc.).
  • the present disclosure may take the form of a computer program product on a computer-usable or computer-readable storage medium, which has a computer-usable or computer-readable program code implemented in the medium to be used by an instruction execution system or Used in conjunction with the instruction execution system.
  • a computer-usable or computer-readable medium can be any medium that can contain, store, communicate, transmit, or transfer a program for use by an instruction execution system, apparatus, or device, or in combination with an instruction execution system, Device or equipment use.

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Abstract

本公开提供一种小区接入失败后的处理方法和装置，用以解决RACH-LESS切换场景下引入预配置的上行资源有效期后，终端接入小区接入失败时如何处理的问题，涉及通信技术领域。该方法包括：终端根据网络配置进行目标小区接入；所述终端在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态、预配置的上行资源的有效状态或者是两者状态的结合进行处理。

Description

一种小区接入失败后的处理方法和装置
相关申请的交叉引用
本公开要求在2019年08月12日提交中国专利局、申请号为201910741368.6、申请名称为“一种小区接入失败后的处理方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及通信技术领域，尤其涉及一种小区接入失败后的处理方法和装置。
背景技术
现有技术中，UE(User Equipment，用户设备)在接入目标小区时，若目标小区为UE配置了预配置的上行资源，该上行资源为周期性上行资源，UE接入较晚会造成资源浪费。
所以，UE需要在预配置的上行资源有效时间内，接入目标小区。然而，如果UE错过了有效的上行资源，或在指定时间内没有成功接入到目标小区，UE该如何处理，并没有具体方案。
发明内容
本公开提供一种小区接入失败后的处理方法和装置，适用于RACH-LESS切换场景引入预配置的上行资源有效期后，用以解决终端接入小区失败时如何处理的问题。
第一方面，本公开实施例提供一种小区接入失败后的处理方法，包括：
终端根据网络配置进行目标小区接入；
所述终端在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态、预配置的上行资源的有效状态或者是两者状态的结合进行处理。
一种可能的实施方式中，所述预配置的上行资源的有效状态为无效；
所述终端根据预配置的上行资源的有效状态进行处理，包括：
所述终端触发无线资源控制RRC重建过程；或，
所述终端进入空闲态；或，
所述终端触发非接入层NAS恢复过程；或，
所述终端进入空闲态，并触发NAS恢复过程；或，
所述终端触发随机接入过程接入所述目标小区；或，
所述终端开启第一定时器，监听所述目标小区的物理下行控制信道；或，
所述终端开启第二定时器，并触发随机接入过程接入所述目标小区。
上述方法，使得终端在接入小区失败后，能够根据预配置的上行资源的有效状态进行后续的处理操作。
一种可能的实施方式中，所述预设定时器的状态为未超时，所述预配置的上行资源的有效状态为无效；
所述终端根据预设定时器的状态和预配置的上行资源的有效状态进行处理，包括：
所述终端触发随机接入过程接入目标小区；或，
所述终端关闭所述预设定时器，并触发随机接入过程接入所述目标小区；或，
所述终端重置所述预设定时器，并触发随机接入过程接入所述目标小区；或，
所述终端开启第二定时器，并触发随机接入过程接入所述目标小区；或，
所述终端监听所述目标小区的物理下行控制信道；或，
所述终端重置所述预设定时器，并监听所述目标小区的物理下行控制信道；或，
所述终端开启第一定时器，监听所述目标小区的物理下行控制信道。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态以及预配置的上行资源的有效状态执行后续的处理操作。
一种可能的实施方式中，若所述预设定时器的状态为超时，所述预配置的上行资源的有效状态为有效；
根据预设定时器的状态和预配置的上行资源的有效状态进行处理，包括：
所述终端触发RRC重建过程；或，
所述终端进入空闲态；或，
所述终端触发NAS恢复过程；或，
所述终端进入空闲态，并触发NAS恢复过程；或，
所述终端释放所述上行资源，并触发随机接入过程接入所述目标小区；或，
所述终端释放所述上行资源，并开启第二定时器；所述终端触发随机接入过程接入所述目标小区；或，
所述终端开启第一定时器，监听所述目标小区的物理下行控制信道；或，
所述终端在所述上行资源有效期内在所述上行资源发送上行数据。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态以及预配置的上行资源的有效状态执行后续的处理操作。
一种可能的实施方式中，所述终端开启第一定时器，监听所述目标小区的物理下行控制信道之后，还包括：
若所述终端在所述第一定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则所述终端关闭第一定时器；或，
若所述第一定时器超时，所述终端未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则所述终端执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态、或者是预配置的上行资源的有效状态，或者是结合两者的状态执行后续的处理操作。
一种可能的实施方式中，所述终端开启第二定时器，并触发随机接入过程接入所述目标小区之后，还包括：
若所述终端在所述第二定时器超时前，完成了所述随机接入过程，则所述终端关闭第二定时器；或，
若所述第二定时器超时，所述终端未接入所述目标小区，则所述终端执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态、预配置的上行资源的有效状态，或者是结合预设定时器的状态以及预配置的上行资源的有效状态，执行后续的处理操作。
一种可能的实施方式中，所述终端触发随机接入过程接入所述目标小区之后，还包括：
若所述终端的MAC层指示随机接入失败，则所述终端执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态、 预配置的上行资源的有效状态，或者是结合预设定时器的状态以及预配置的上行资源的有效状态，执行后续的处理操作。
一种可能的实施方式中，所述终端触发随机接入过程接入所述目标小区之后，还包括：
若所述终端在所述预设定时器超时前，完成了所述随机接入过程，则所述终端关闭所述预设定时器；或，
若所述预设定时器超时，所述终端未接入所述目标小区，则所述终端执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态以及预配置的上行资源的有效状态执行后续的处理操作。
一种可能的实施方式中，所述终端监听所述目标小区的物理下行控制信道之后，还包括：
若所述终端在所述预设定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则所述终端关闭所述预设定时器；或，
若所述预设定时器超时，所述终端未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则所述终端执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态以 及预配置的上行资源的有效状态执行后续的处理操作。
一种可能的实施方式中，所述终端在所述上行资源有效期内在所述上行资源发送上行数据之后，还包括：
若所述终端在所述上行资源有效期间，监听到以所述终端的临时标识符加扰的下行控制信道的信令或接收到成功发送上行数据的响应消息，则所述终端释放所述上行资源；
若所述上行资源有效期结束，所述终端未监听到以所述终端的临时标识符加扰的下行控制信道的信令或未接收到成功发送上行数据的响应消息，则所述终端执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态并触发NAS层恢复过程；
触发RRC重建过程。
上述方法，使得终端在接入小区失败后，能够根据预设定时器的状态以及预配置的上行资源的有效状态执行后续的处理操作。
第二方面，本公开实施例提供一种终端，包括：处理器和存储器；
其中，处理器，用于读取存储器中的程序并执行下列过程：
根据网络配置进行目标小区接入；
在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
在一种可能的实现方式中，所述预配置的上行资源的有效状态为无效；
所述处理器具体用于：
触发无线资源控制RRC重建过程；或，
进入空闲态；或，
触发非接入层NAS恢复过程；或，
进入空闲态，并触发NAS恢复过程；或，
触发随机接入过程接入所述目标小区；或，
开启第一定时器，监听所述目标小区的物理下行控制信道；或，
开启第二定时器，并触发随机接入过程接入所述目标小区。
在一种可能的实现方式中，所述预设定时器的状态为未超时，所述预配置的上行资源的有效状态为无效；
所述处理器具体用于：
触发随机接入过程接入目标小区；或，
关闭所述预设定时器，并触发随机接入过程接入所述目标小区；或，
重置所述预设定时器，并触发随机接入过程接入所述目标小区；或，
开启第二定时器，并触发随机接入过程接入所述目标小区；或，
监听所述目标小区的物理下行控制信道；或，
重置所述预设定时器，并监听所述目标小区的物理下行控制信道；或，
开启第一定时器，监听所述目标小区的物理下行控制信道。
在一种可能的实现方式中，若所述预设定时器的状态为超时，所述预配置的上行资源的有效状态为有效；
所述处理器具体用于：
触发RRC重建过程；或，
进入空闲态；或，
触发NAS恢复过程；或，
进入空闲态，并触发NAS恢复过程；或，
释放所述上行资源，并触发随机接入过程接入所述目标小区；或，
释放所述上行资源，并开启第二定时器；所述终端触发随机接入过程接入所述目标小区；或，
开启第一定时器，监听所述目标小区的物理下行控制信道；或，
在所述上行资源有效期内在所述上行资源发送上行数据。
在一种可能的实现方式中，所述处理器还用于：
开启第一定时器，监听所述目标小区的物理下行控制信道之后，若在所 述第一定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭第一定时器；或，
若所述第一定时器超时，未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理器还用于：
开启第二定时器，并触发随机接入过程接入所述目标小区之后，若在所述第二定时器超时前，完成了所述随机接入过程，则关闭第二定时器；或，
若所述第二定时器超时，未接入所述目标小区，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理器还用于：
触发随机接入过程接入所述目标小区之后，若所述终端的MAC层指示随机接入失败，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理器还用于：
触发随机接入过程接入所述目标小区之后，若在所述预设定时器超时前，完成了所述随机接入过程，则关闭所述预设定时器；或，
若所述预设定时器超时，未接入所述目标小区，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理器还用于：
监听所述目标小区的物理下行控制信道之后，若在所述预设定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭所述预设定时器；或，
若所述预设定时器超时，未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理器还用于：
在所述上行资源有效期内在所述上行资源发送上行数据之后，若在所述上行资源有效期间，监听到以所述终端的临时标识符加扰的下行控制信道的信令或接收到成功发送上行数据的响应消息，则释放所述上行资源；
若所述上行资源有效期结束，未监听到以所述终端的临时标识符加扰的下行控制信道的信令或未接收到成功发送上行数据的响应消息，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态并触发NAS层恢复过程；
触发RRC重建过程。
第三方面，本公开实施例还提供一种小区接入失败后的处理装置，包括：
接入模块，用于根据网络配置进行目标小区接入；
处理模块，用于在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
在一种可能的实现方式中，所述预配置的上行资源的有效状态为无效；
所述处理模块具体用于：
触发无线资源控制RRC重建过程；或，
进入空闲态；或，
触发非接入层NAS恢复过程；或，
进入空闲态，并触发NAS恢复过程；或，
触发随机接入过程接入所述目标小区；或，
开启第一定时器，监听所述目标小区的物理下行控制信道；或，
开启第二定时器，并触发随机接入过程接入所述目标小区。
在一种可能的实现方式中，所述预设定时器的状态为未超时，所述预配置的上行资源的有效状态为无效；
所述处理模块具体用于：
触发随机接入过程接入目标小区；或，
关闭所述预设定时器，并触发随机接入过程接入所述目标小区；或，
重置所述预设定时器，并触发随机接入过程接入所述目标小区；或，
开启第二定时器，并触发随机接入过程接入所述目标小区；或，
监听所述目标小区的物理下行控制信道；或，
重置所述预设定时器，并监听所述目标小区的物理下行控制信道；或，
开启第一定时器，监听所述目标小区的物理下行控制信道。
在一种可能的实现方式中，若所述预设定时器的状态为超时，所述预配置的上行资源的有效状态为有效；
所述处理模块具体用于：
触发RRC重建过程；或，
进入空闲态；或，
触发NAS恢复过程；或，
进入空闲态，并触发NAS恢复过程；或，
释放所述上行资源，并触发随机接入过程接入所述目标小区；或，
释放所述上行资源，并开启第二定时器；所述终端触发随机接入过程接入所述目标小区；或，
开启第一定时器，监听所述目标小区的物理下行控制信道；或，
在所述上行资源有效期内在所述上行资源发送上行数据。
在一种可能的实现方式中，所述处理模块还用于：
开启第一定时器，监听所述目标小区的物理下行控制信道之后，若在所述第一定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭第一定时器；或，
若所述第一定时器超时，未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块还用于：
开启第二定时器，并触发随机接入过程接入所述目标小区之后，若在所述第二定时器超时前，完成了所述随机接入过程，则关闭第二定时器；或，
若所述第二定时器超时，未接入所述目标小区，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块还用于：
触发随机接入过程接入所述目标小区之后，若所述终端的MAC层指示随机接入失败，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块还用于：
触发随机接入过程接入所述目标小区之后，若在所述预设定时器超时前，完成了所述随机接入过程，则关闭所述预设定时器；或，
若所述预设定时器超时，未接入所述目标小区，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块还用于：
监听所述目标小区的物理下行控制信道之后，若在所述预设定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭所述预设定时器；或，
若所述预设定时器超时，未监听到以所述终端的临时标识符加扰的下行 控制信道的信令，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块还用于：
在所述上行资源有效期内在所述上行资源发送上行数据之后，若在所述上行资源有效期间，监听到以所述终端的临时标识符加扰的下行控制信道的信令或接收到成功发送上行数据的响应消息，则释放所述上行资源；
若所述上行资源有效期结束，未监听到以所述终端的临时标识符加扰的下行控制信道的信令或未接收到成功发送上行数据的响应消息，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态并触发NAS层恢复过程；
触发RRC重建过程。
第四方面，本公开还提供一种计算机存储介质，其上存储有计算机程序，该程序被处理单元执行时实现第一方面所述方法的步骤。
另外，第二方面至第四方面中任一种实现方式所带来的技术效果可参见第一方面中不同实现方式所带来的技术效果，此处不再赘述。
本公开的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本公开而了解。本公开的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍，显而易见地，下面所介绍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的前提下，还可以根据这些附图获得其他的附图。
图1为相关技术中UE进行小区的切换的时序图；
图2为本公开实施例中一种小区接入失败后的处理方法流程图；
图3为本公开实施例中一种终端示意图；
图4为本公开实施例中一种小区接入失败后的处理装置是示意图。
具体实施方式
以下，对本公开实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1、“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
为了能够清楚的理解本公开实施例中提供的技术方案，下面介绍相关技术中，UE进行小区切换的步骤。
参阅图1，为相关技术中UE进行小区的切换的时序图，可以包括以下步骤：
步骤101：UE上报测量报告给源小区。
步骤102：源小区根据测量报告作出切换决定。
步骤103：源小区发送切换请求消息给目标小区。
步骤104：目标小区允许UE切换到目标小区，为UE分配新的C-RNTI(Cell Radio Network Temporary Identifier,小区无线网络临时标识)。若目标小区决定为UE配置RACH-LESS，则生成包含RACH-skip的指示信息的切换命令。
实施时，切换命令中还可以包含TA(Timing Advance，定时提前)信息。 可选的，目标小区还可以为UE分配预配置的上行资源，则切换命令中还可以包含预配置的上行资源的信息。
步骤105：目标小区发送携带有切换命令的切换请求应答给源小区。
步骤106：源小区将切换命令发送给UE。
步骤107：UE开启定时器T304，按照切换命令配置UE，同步到目标小区；以及按照切换命令中携带的TA信息，发送上行消息。
步骤108：若目标小区为UE分配预配置的上行资源，则UE在预配置的上行资源发送上行数据即UE在第一个有效的PUSCH开始发送切换完成消息给目标小区。
步骤109：UE监听目标小区的PDCCH。
步骤110：UE在监听到以该UE的C-RNTI加扰的PDCCH的信令时停止定时器T304。
实施时，步骤108还可以执行为，若目标小区没有为UE分配预配置的上行资源，则UE监听目标小区的PDCCH消息。则步骤109可以执行为UE在监听到以该UE的C-RNTI加扰的PDCCH的信令时停止定时器T304。则步骤110可以执行为UE按照PDCCH分配的上行资源发送切换完成消息。
实施时，若T304超时，UE没能接收到以该UE的C-RNTI加扰的PDCCH命令。则步骤108可以执行为UE触发RRC重建过程。
可见，相关技术中引入预配置的上行资源的有效期后，如果UE错过了目标小区为UE配置的上行资源，或者定时器T304超时，没有成功接入到目标小区时，UE该如何处理需要解决。
基于上述需求，本公开实施例中提供一种小区接入失败后的处理方法。该方法中，例如终端在进行小区切换时，或者是配置了双连接的终端在辅小区组主小区PSCell改变时，如果终端没有成功接入目标PCell或PScell小区，则终端根据切换控制或同步重配定时器的状态、预配置的上行资源的有效状态，或者是根据两者的状态进行处理。
上述方法，使得在UE在没有成功接入目标小区时，能够根据预设定时器 的状态，以及预配置的上行资源的有效状态进行相应的处理。
本公开实施例中，终端，是一种具有无线通信功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端可以是手机(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；还可以是各种形式的UE，移动台(Mobile Station，MS)，终端(Terminal Device)。
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部份实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
参阅图2，为本公开实施例中一种小区接入失败后的处理方法流程图，可以包括以下步骤：
步骤201：终端根据网络配置进行目标小区接入。
实施时，终端可以是根据切换命令或者同步重配命令进行切换过程或主小区PCell同步重配过程。或者，还可以是配置双连接的终端的PSCell改变或同步重配的过程，但不限于以上两个场景，对于下行数据到达上行失步、辅小区添加等需要UE执行上行同步的场景都可以适用。
步骤202：所述终端在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
具体实施时，预设定时器可以是控制切换的定时器或控制同步重配的定时器或控制PSCell改变的定时器，例如T304定时器或者是T307定时器。
上述方法，使得UE接入小区失败后，能够根据预设定时器的状态，或者是预配置的上行资源的有效状态，或者是结合两者状态进行处理。
上述步骤202在实施时，可以根据以下三种不同的情况进行处理，下面进行详细介绍。
情况一：预配置的上行资源无效。
具体实施时，目标小区可以为终端分配上行资源，并在切换命令中携带预配置的上行资源的信息。终端在预配置的上行资源的有效期间按照配置的上行资源发送上行数据，如果终端在上行资源有效期间，未接收到以该UE的C-RNTI加扰的PDCCH命令，或未接收到上行数据发送成功的响应消息，例如ARQ或HARQ过程的ACK响应消息，则表示终端未成功接入目标小区。当预配置的上行资源有效期结束时，终端可以根据如方式1-方式7中，任一方式进行处理：
方式1：终端触发RRC重建过程。
实施时，终端选择重建小区并在选择的小区触发重建过程恢复RRC连接，例如终端选择在源小区发起RRC重建过程在源小区恢复RRC连接。
方式2：终端进入空闲态。
例如，终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目标小区，则终端进入空闲态，UE进入空闲态可以重选小区接入。
方式3：终端触发非接入层NAS恢复过程。
终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目标小区，则终端可以触发NAS恢复过程，由NAS触发新的小区接入过程。
方式4：终端进入空闲态，并触发NAS恢复过程。
例如，终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目标小区，则RRC层释放空口连接进入空闲态的同时，通知NAS触发NAS恢复过程，由NAS触发新的小区接入过程。
方式5：终端触发随机接入过程接入所述目标小区。
实施时，终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目标小区，如果目标小区为终端分配了专用的随机接入资源，则终端触发非竞争的随机接入过程，即发送专用前导序列给目标小区，或多波束场景下UE选择接入的波束上，网络为UE分配了专用的随机接入资源，则在该波束上触发非竞争随机接入过程，否则触发竞争随机接入过程。如果目标小区没有为终端分配专用的随机接入资源，则终端触发竞争的随机接入过程，即终端随机选择一个前导序列发送给目标小区。或者，终端可以忽略目标小区分配的专用的随机接入资源，直接触发竞争的随机接入过程。
若终端接的MAC(Media Access Control，媒体访问控制)层指示随机接入失败，则表示终端随机接入目标小区失败。此时，终端需要执行预设操作。具体的，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，目标小区没有为终端分配随机接入资源，终端触发竞争的随机接入过程接入目标小区，发送随机选择的前导序列给目标小区。终端的RRC层接收到MAC层发送的随机接入失败的指示信息时，终端触发RRC重建过程。
又例如，目标小区为终端分配专用的随机接入资源，终端触发非竞争的随机接入过程接入目标小区，发送专用的前导序列给目标小区。终端的RRC层接收到MAC层发送的随机接入失败的指示信息时，进入空闲态。
方式6：终端开启第一定时器，监听所述目标小区的物理下行控制信道。
具体实施时，目标小区在允许终端切换到目标小区时，会为终端分配新的UE ID，即新的C-RNTI(Cell-Radio Network Temporary Identifier,小区无线网络临时标识符)。
若终端在第一定时器超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，表示终端成功接入目标小区，则关闭第一定时器。其中第一定时器时长为网络通过信令配置给UE或者为协议规定的预设值。例如，终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目 标小区，则开启第一定时器，监听目标小区的物理下行控制信道。终端在第一定时器超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，则关闭第一定时器。
若第一定时器超时，终端未监听到以终端的C-RNTI加扰的下行控制信道的信令，表示终端未成功接入目标小区。此时，终端执行预设操作。具体的，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目标小区，终端开启第一定时器，监听目标小区的物理下行控制信道。第一定时器超时，终端未监听到以终端的C-RNTI加扰的下行控制信道的信令，则触发RRC重建过程。
方式7：终端开启第二定时器，并触发随机接入过程接入所述目标小区。
实施时，终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目标小区，则开启第二定时器，并触发随机接入过程接入目标小区。具体的，如果目标小区为终端分配了专用的随机接入资源，则触发非竞争的随机接入过程，或多波束场景下UE选择接入的波束上，网络为UE分配了专用的随机接入资源，则在该波束上触发非竞争随机接入过程，否则触发竞争随机接入过。如果目标小区没有为终端分配专用的随机接入资源，则触发竞争的随机接入过程。或者，终端可以忽略目标小区是否分配专用的随机接入资源，只触发竞争的随机接入过程。其中第二定时器时长为网络通过信令配置给UE或者为协议规定的预设值。
若终端在第二定时器超时前，随机接入过程完成，UE接入目标小区，则关闭第二定时器。
例如，目标小区为终端分配了专用的随机接入资源。终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目标小区，终端则开启第二定时器，并触发非竞争的随机接入过程接入目标小区。终端在第二定时器超时前，完成了随机接入过程，则关闭第二定时器。
若第二定时器超时，随机接入过程未完成，UE未接入目标小区，则终端执行预设操作。其中，预设操作以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，目标小区为终端分配了随机接入资源。终端根据网络配置进行目标小区接入时，在预配置的上行资源有效期间未成功接入目标小区，则终端开启第二定时器，并触发竞争的随机接入过程计入目标小区。第二定时器超时，终端未接入目标小区，终端进入空闲状态并触发NAS恢复过程。
情况二：预设定时器未超时，预配置的上行资源无效。
具体实施时，目标小区为终端分配的上行资源有效期间，终端在配置的上行资源发送上行数据，但是终端未接收到以该终端的C-RNTI加扰的PDCCH消息，或者未成功接收到上行数据传输的响应消息，例如HARQ中的ACK响应或ARQ过程中的ACK响应，终端未成功接入目标小区。在预设定时器未超时，且预配置的上行资源无效时，终端可以根据如方式1-方式7中，任一方式进行处理：
方式1：终端触发随机接入过程接入目标小区。
具体的，终端触发随机接入过程，若终端在预设定时器超时前完成随机接入过程，则UE成功接入目标小区，则可以关闭预设定时器。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，此时，T304没超时，预配置的上行资源无效。终端触发随机接入过程接入目标小区，终端在T304超时前完成随机接入，成功接入目标小区，终端关闭T304。
若预设定时器超时，所述终端未成功接入目标小区，则终端执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，此时，T304没超时，预配置的上行资源无效。终端触发随机接入过程接入目标小区，T304超时，随机接入过程未完成， 终端未成功接入目标小区，则触发RRC重建过程。
或者，还可以由MAC层控制确定随机接入过程是否成功，终端是否成功接入目标小区。具体的，若终端的RRC层接收到MAC层发送的随机接入失败的指示信息，则终端执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区,T304没超时，预配置的上行资源无效。终端触发随机接入过程接入目标小区，终端RRC层接收到MAC层发送的随机接入失败的指示信息，RRC获知随机接入失败，则进入空闲态。
方式2：终端关闭所述预设定时器，并触发随机接入过程接入所述目标小区。
实施时，如果目标小区为终端分配了专用的随机接入资源，则终端触发非竞争的随机接入过程，即发送专用前导序列给目标小区，或多波束场景下UE选择接入的波束上，网络为UE分配了专用的随机接入资源，则在该波束上触发非竞争随机接入过程，否则触发竞争随机接入过。如果目标小区没有为终端分配随机接入资源，则终端触发竞争的随机接入过程，即终端随机选择一个前导序列发送给目标小区。或者，终端可以忽略目标小区分配的随机接入资源，直接触发竞争的随机接入过程。
具体的，若终端的MAC层指示随机接入失败，则执行预设操作。具体的，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，此时，T304没超时，预配置的上行资源无效。终端触发随机接入过程接入目标小区，RRC接收到MAC层发送的随机接入失败的指示信息，则触发RRC重建过程。
又例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行 资源有效期间未成功接入目标小区，此时，T304没超时，预配置的上行资源无效。终端触发随机接入过程接入目标小区，并成功接入目标小区。
方式3：终端重置所述预设定时器，并触发随机接入过程接入所述目标小区。
实施时，如果目标小区为终端分配了专用的随机接入资源，则终端触发非竞争的随机接入过程，即发送专用前导序列给目标小区，或多波束场景下UE选择接入的波束上，网络为UE分配了专用的随机接入资源，则在该波束上触发非竞争随机接入过程，否则触发竞争随机接入过。如果目标小区没有为终端分配专用的随机接入资源，则终端触发竞争的随机接入过程，即终端随机选择一个前导序列发送给目标小区。或者，终端可以忽略目标小区分配的随机接入资源，直接触发竞争的随机接入过程。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，此时，T304没超时，预配置的上行资源无效。终端重置预设定时器，即重置T304，并触发随机接入过程接入目标小区。
如果终端在预设定时器超时前，成功接入目标小区，则关闭预设定时器。若,预设定时器超时，终端未成功接入目标小区，则执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
方式4：终端开启第二定时器，并触发随机接入过程接入所述目标小区。
实施时，如果目标小区为终端分配了专用的随机接入资源，则终端触发非竞争的随机接入过程，即发送专用前导序列给目标小区，或多波束场景下UE选择接入的波束上，网络为UE分配了专用的随机接入资源，则在该波束上触发非竞争随机接入过程，否则触发竞争随机接入过。如果目标小区没有为终端分配专用的随机接入资源，则终端触发竞争的随机接入过程，即终端随机选择一个前导序列发送给目标小区。或者，终端可以忽略目标小区分配的随机接入资源，直接触发竞争的随机接入过程。其中第二定时器时长为网络通过信令配置给UE或者为协议规定的预设值。
具体的，例如终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，则开启第二定时器，触发随机接入过程接入目标小区。若终端在第二定时器超时前，完成随机接入过程，终端成功接入目标小区，则关闭第二定时器。若第二定时器超时，未成功接入目标小区，则执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，开启第二定时器，触发随机接入过程接入目标小区。终端在第二定时器超时前，随机接入过程未完成，未成功接入目标小区，则终端进入空闲态。
方式5：终端监听所述目标小区的物理下行控制信道。
实施时，若终端在预设定时器超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，则关闭预设定时器。若预设定时器超时，终端未监听到以终端的C-RNTI加扰的下行控制信道的信令，则执行预设操作。其中，预设操作包括：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，终端监听目标小区的物理下行控制信道。终端在预设定时器例T304超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，则关闭预设定时器。
方式6：终端重置所述预设定时器，并监听所述目标小区的物理下行控制信道。
实施时，若终端在预设定时器超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，则关闭预设定时器。预设定时器超时，终端未监听到以终端的C-RNTI加扰的下行控制信道的信令，则执行预设操作。其中，预设操作包括：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复 过程；触发RRC重建过程。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，终端重置预设定时器即重置T304，监听目标小区的物理下行控制信道。终端在预设定时器T304超时前，未监听到以终端的C-RNTI加扰的下行控制信道的信令，则终端触发NAS恢复过程。
方式7：终端开启第一定时器，监听所述目标小区的物理下行控制信道。
若终端在第一定时器超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，表示终端成功接入目标小区，则关闭第一定时器。其中第一定时器时长为网络通过信令配置给UE或者为协议规定的预设值。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，开启第一定时器，额外的终端关闭预设定时器即关闭T304，终端监听目标小区的物理下行控制信道。终端在第一定时器超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，则关闭第一定时器。
若第一定时器超时，终端未监听到以终端的C-RNTI加扰的下行控制信道的信令，表示终端未成功接入目标小区。此时，终端执行预设操作。具体的，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，终端根据网络配置进行RACH-less切换过程，在预配置的上行资源有效期间未成功接入目标小区，关闭T304，开启第一定时器，监听目标小区的物理下行控制信道。第一定时器超时，终端未监听到以终端的C-RNTI加扰的下行控制信道的信令，则触发RRC重建过程。
情况三：预设定时器超时，预配置的上行资源有效。
具体实施时，终端在预设定时器超时前，未成功接入目标小区。此时，目标小区为终端预配置的上行资源仍有效，终端可以根据如方式1-方式8中，任一方式进行处理：
方式1：所述终端触发RRC重建过程。
实施时，终端根据网络配置进行目标小区接入时未成功接入目标小区，若预设定时器超时，预配置的上行资源有效，则终端触发RRC重建过程，例如终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，而网络侧为终端预配置的上行资源的有效期尚未到达有效窗口结束时刻，终端触发RRC重建。
方式2：终端进入空闲态。
实施时，终端根据网络配置进行目标小区接入时未成功接入目标小区，若预设定时器超时，预配置的上行资源有效，则进入空闲态，例如终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，而网络侧为终端预配置的上行资源的有效期尚未到达有效窗口结束时刻，终端进入空闲态。
方式3：终端触发NAS恢复过程。
例如，终端根据网络配置进行目标小区接入时未成功接入目标小区，若预设定时器超时，预配置的上行资源有效，终端触发NAS恢复过程，例如终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，而网络侧为终端预配置的上行资源的有效期尚未到达有效窗口结束时刻，终端触发NAS恢复过程。
方式4：终端进入空闲态，并触发NAS恢复过程。
例如，终端根据网络配置进行目标小区接入时未成功接入目标小区，若预设定时器超时，预配置的上行资源有效，进入空闲态的同时，触发NAS恢复过程，例如终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，而网络侧为终端预配置的上行资源的有效期尚未到达有效窗口结束时刻，终端进入空闲态，并触发NAS恢复过程。
方式5：终端释放所述上行资源，并触发随机接入过程接入所述目标小区。
实施时，终端根据网络配置进行目标小区接入时未成功接入目标小区，若预设定时器超时，预配置的上行资源有效，终端需释放上行资源。并触发随机接入过程接入所述目标小区。例如终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，而网络侧为终端预配置的上行资源的有效 期尚未到达有效窗口结束时刻，终端释放所述上行资源，并触发随机接入过程接入目标小区。
实施时，如果目标小区为终端分配了专用随机接入资源，则终端触发非竞争的随机接入过程，即发送专用前导序列给目标小区，或多波束场景下UE选择接入的波束上，网络为UE分配了专用的随机接入资源，则在该波束上触发非竞争随机接入过程，否则触发竞争随机接入过程。如果目标小区没有为终端分配专用随机接入资源，则终端触发竞争的随机接入过程，即终端随机选择一个前导序列发送给目标小区。或者，终端可以忽略目标小区分配的随机接入资源，直接触发竞争的随机接入过程。
若终端RRC接收到MAC(Media Access Control，媒体访问控制)层发送的随机接入失败的指示信息，则表示终端随机接入目标小区失败。此时，终端需要执行预设操作。具体的，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，目标小区没有为终端分配随机接入资源，终端触发竞争的随机接入过程接入目标小区，发送随机选择的前导序列给目标小区。终端RRC接收到MAC层发送的随机接入失败的指示信息时，终端触发RRC重建过程。
又例如，目标小区为终端分配专用随机接入资源，终端触发非竞争的随机接入过程接入目标小区，发送专用的前导序列给目标小区。终端RRC接收到MAC层发送的随机接入失败的指示信息时，进入空闲态。
方式6：终端释放所述上行资源，并开启第二定时器；所述终端触发随机接入过程接入所述目标小区。
实施时，终端根据网络配置进行目标小区接入时未成功接入目标小区，若预设定时器超时，预配置的上行资源有效，终端需释放上行资源。以及终端开启第二定时器，并触发随机接入过程接入所述目标小区。其中第二定时器时长为网络通过信令配置给UE或者为协议规定的预设值。
具体的，如果目标小区为终端分配了专用随机接入资源，则触发非竞争 的随机接入过程，或多波束场景下UE选择接入的波束上，网络为UE分配了专用的随机接入资源，则在该波束上触发非竞争随机接入过程，否则触发竞争随机接入过程。如果目标小区没有为终端分配专用随机接入资源，则触发竞争的随机接入过程。或者，终端可以忽略目标小区是否分配随机接入资源，只触发竞争的随机接入过程。
若终端在第二定时器超时前，完成了随机接入过程，则关闭第二定时器。
例如，目标小区为终端分配了专用随机接入资源。终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，开启第二定时器，并触发非竞争的随机接入过程接入目标小区。终端在第二定时器超时前，完成了随机接入过程，则关闭第二定时器。
若第二定时器超时，终端未接入目标小区，则终端执行预设操作。其中，预设操作以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，目标小区没有为终端分配专用的随机接入资源。终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，开启第二定时器，并触发竞争的随机接入过程计入目标小区。终端在第二定时器超时时，未接入目标小区，终端触发NAS恢复过程。
方式7：终端开启第一定时器，监听所述目标小区的物理下行控制信道。
实施时，终端根据网络配置进行目标小区接入时未成功接入目标小区，若预设定时器超时，预配置的上行资源有效，终端需释放上行资源。以及终端开启第一定时器，监听目标小区的物理下行控制信道。其中第一定时器时长为网络通过信令配置给UE或者为协议规定的预设值。
若终端在第一定时器超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，表示终端成功接入目标小区，则关闭第一定时器。
例如，终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，开启第一定时器，监听目标小区的物理下行控制信道。终端在第一定时器超时前，监听到以终端的C-RNTI加扰的下行控制信道的信令，则关闭第 一定时器。
若第一定时器超时，未监听到以终端的C-RNTI加扰的下行控制信道的信令，表示终端未成功接入目标小区。此时，终端执行预设操作。具体的，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
例如，终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区，开启第一定时器，监听目标小区的物理下行控制信道。第一定时器超时，终端未监听到以终端的C-RNTI加扰的下行控制信道的信令，则触发RRC重建过程。
方式8：终端在所述上行资源有效期内在所述上行资源发送上行数据。
实施时，上行资源有效期结束时，终端执行以下操作中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程；
例如，终端执行RACH-less切换过程，T304超时，终端未成功接入目标小区预配置的上行资源有效时，终端在该上行资源的有效期内在上行资源发送上行数据。如果终端接收到以该终端的CRNTI加扰的PDCCH消息或者接收到上行数据发送成功的响应，例如HARQ或ARQ过程的ACK响应消息，终端接入该目标小区成功，否则终端在该上行资源失效后，如果终端未成功接入目标小区，终端触发RRC重建过程。
下面通过具体的实施例对本公开提供的技术方案做进一步说明。
实施例1：RACH-less切换，触发随机接入过程。
步骤1：源小区透传切换命令给UE，其中切换命令中包含了目标小区为UE预配置的上行资源，该预配置的上行资源在指定时间内有效。
步骤2：UE接收到切换命令后开启定时器T304，并在指定时间内在网络侧为UE预配置的上行资源上发起上行传输接入到目标小区。
步骤3：指定时间内，UE没能成功接入到目标小区，例如没有接收到网络侧发送的以该UE C-RNTI加扰的PDCCH命令，T304尚未超时。
步骤4：UE触发随机接入过程。
步骤5：若随机接入过程成功，则关闭定时器T304，否则若T034超时，终端未成功接入目标小区，则执行预设操作。
其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
可选的，步骤4还可以执行为关闭定时器T304，开启第二定时器，UE触发随机接入过程。则步骤5可以执行为，若第二定时器超时前，UE成功接入目标小区，则关闭第二定时器。或者，步骤5还可以执行为若第二定时器超时，UE未接入目标小区，则执行预设操作。其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
可选的，步骤4还可以执行为重启定时器T304，触发随机接入过程。则步骤5可以执行为，若T304超时前，UE成功接入目标小区，则关闭T304。或者，步骤5还可以执行为若T304超时，UE未成功接入目标小区，则执行预设操作。其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
可选的，步骤4还可以执行为关闭定时器T304，触发随机接入过程。则步骤5可以执行为若RRC接收到MAC层发送的随机接入失败的指示信息，则执行预设操作。其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
实施例2：RACH-less切换，触发监听目标小区的PDCCH。
步骤1：源小区透传切换命令给UE，其中切换命令中包含了目标小区为UE预配置的上行资源，该预配置的上行资源在指定时间内有效。
步骤2：UE接收到切换命令后开启定时器T304，并在指定时间内在网络侧为UE预配置的上行资源上发起上行传输接入到目标小区。
步骤3：指定时间内，UE没能成功接入到目标小区，例如没有接收到网络侧发送的以该UE C-RNTI加扰的PDCCH命令，T304尚未超时。
步骤4：监听目标小区的PDCCH。
步骤5：若监听到以该UE的C-RNTI加扰的PDCCH命令，则关闭T304。
可选的，步骤5还可以执行为若T304超时，未监听到以该UE的C-RNTI加扰的PDCCH命令，则执行预设操作。其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
可选的，步骤4还可以执行为关闭定时器T304，开启第一定时器，监听目标小区的PDCCH。则步骤5可以执行为若监听到以该UE的C-RNTI加扰的PDCCH命令，则关闭第一定时器。或者，步骤5还可以执行为若T304超时，未监听到以该UE的C-RNTI加扰的PDCCH命令，则执行预设操作。其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
可选的，步骤4还可以执行为重启定时器T304，监听目标小区的PDCCH。则步骤5可以执行为若监听到以该UE的C-RNTI加扰的PDCCH命令，则关闭T304。或者，步骤5还可以执行为若T304超时，未监听到以该UE的C-RNTI加扰的PDCCH命令，则执行预设操作。其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
实施例3：RACH-less切换，触发RRC重建过程或NAS恢复过程或进入 idle态。
步骤1：源小区透传切换命令给UE，其中切换命令中包含了目标小区为UE预配置的上行资源，该预配置的上行资源在指定时间内有效。
步骤2：UE接收到切换命令后开启定时器T304，并在指定时间内在网络侧为UE预配置的上行资源上发起上行传输接入到目标小区。
步骤3：指定时间内，UE没能成功接入到目标小区，例如没有接收到网络侧发送的以该UE C-RNTI加扰的PDCCH命令，T304尚未超时。
步骤4：关闭T304定时器，执行预设操作。
其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
实施例4：RACH-less切换，触发监听目标小区的PDCCH。
步骤1：源小区透传切换命令给UE，其中切换命令中包含了目标小区为UE预配置的上行资源，该预配置的上行资源在指定时间内有效。
步骤2：UE接收到切换命令后开启定时器T304，并在指定时间内在网络侧为UE预配置的上行资源上发起上行传输接入到目标小区。
步骤3：T304超时UE没能成功接入目标小区，预配置的上行资源依然有效。
步骤4：释放上行资源，开启第一定时器，监听目标小区的PDCCH。
步骤5：若监听到以该UE的C-RNTI加扰的PDCCH命令，则关闭第一定时器。
可选的，步骤5还可以执行为若在第一定时器超时，未监听到以该UE的C-RNTI加扰的PDCCH命令，则执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
可选的，步骤4还可以执行为释放上行资源，执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
可选的，步骤4还可以执行为在预配置的上行资源有效期内按照配置的上行资源发送上行命令。则步骤5可以执行为接收到以该UE的C-RNTI加扰的PDCCH信令或接收到成功发送上行数据的响应消息例如HARQ或ARQ过程中的ACK响应，接入成功。或者，步骤5还可以执行为若没有在上行资源有效时间内没有接收到以该UE的C-RNTI加扰的PDCCH信令，则接入目标小区未成功，则执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
可选的，步骤4还可以执行为若没有在上行资源有效时间内接入目标小区，则开启第二定时器，触发随机接入过程。则步骤5可以执行为若在第二定时器超时前完成随机接入过程则关闭第二定时器，接入成功。否则步骤5还可以执行为，第二定时器超时，随机接入没有成功，则执行预设操作，其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程；。
可选的，步骤4还可以执行为触发随机接入过程。则步骤5可以执行为若RRC接收到MAC层发送的随机接入的指示信息，则执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
实施例5：T304不开启，触发监听目标小区的PDCCH。
步骤1：源小区透传切换命令给UE，其中切换命令中包含了目标小区为UE预配置的上行资源，该预配置的上行资源在指定时间内有效。
步骤2：UE接收到切换命令后忽略定时器T304，并在指定时间内在网络侧为UE预配置的上行资源上发起上行传输接入到目标小区。
步骤3：指定有效时间内，UE没能成功接入到目标小区，例如没有接收到网络侧发送的以该UE的C-RNTI加扰的PDCCH命令。
步骤4：开启第一定时器，监听目标小区的PDCCH。
步骤5：若第一定时器超时前，监听到以UE的C-RNTI加扰的PDCCH命令，则关闭第一定时器。
可选的，步骤5还可以执行为若第一定时器超时，未监听到以UE的C-RNTI加扰的PDCCH命令，则执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程；触发RRC重建过程。
可选的，步骤4还可以执行为触发随机接入过程。则步骤5可以执行为若RRC接收到MAC层发送的随机接入的指示信息，则执行预设操作。其中，预设操作包括以下中的一种：进入空闲态；触发NAS恢复过程；进入空闲态， 并触发NAS恢复过程；触发RRC重建过程。
可选的，步骤4还可以执行为开启第二定时器，UE触发随机接入过程。则步骤5可以执行为，若第二定时器超时前，UE成功接入目标小区，则关闭第二定时器。或者，步骤5还可以执行为若第二定时器超时，UE未接入目标小区，则执行预设操作。其中，预设操作包括以下中的一种：触发RRC重建过程；进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
可选的，步骤4还可以执行为触发RRC重建过程。或者，进入空闲态；触发NAS恢复过程；进入空闲态，并触发NAS恢复过程。
基于相同的发明构思，本公开实施例还提供一种终端。由于该终端即是本发明实施例中的方法中的终端，并且该终端解决问题的原理与该方法相似，因此该终端的实施可以参见方法的实施，重复之处不再赘述。
如图3所示，本公开实施例一种终端包括：
处理器3100、存储器3101和收发机3102。
处理器3100负责管理总线架构和通常的处理，存储器3101可以存储处理器3100在执行操作时所使用的数据。收发机3102用于在处理器3100的控制下接收和发送数据。
总线架构可以包括任意数量的互联的总线和桥，具体由处理器3100代表的一个或多个处理器3100和存储器3101代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。处理器3100负责管理总线架构和通常的处理，存储器3101可以存储处理器3100在执行操作时所使用的数据。
本发明实施例揭示的流程，可以应用于处理器3100中，或者由处理器3100实现。在实现过程中，信号处理流程的各步骤可以通过处理器3100中的硬件的集成逻辑电路或者软件形式的指令完成。处理器3100可以是通用处理器3100、数字信号处理器3100、专用集成电路、现场可编程门阵列或者其他可 编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器3100可以是微处理器3100或者任何常规的处理器3100等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器3100执行完成，或者用处理器3100中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器3101，处理器3100读取存储器3101中的信息，结合其硬件完成信号处理流程的步骤。
其中，处理器3100，用于读取存储器3101中的程序并执行下列过程：
根据网络配置进行目标小区接入；
在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
可选的，所述预配置的上行资源的有效状态为无效；
所述处理器3100具体用于：
触发无线资源控制RRC重建过程；或，
进入空闲态；或，
触发非接入层NAS恢复过程；或，
进入空闲态，并触发NAS恢复过程；或，
触发随机接入过程接入所述目标小区；或，
开启第一定时器，监听所述目标小区的物理下行控制信道；或，
开启第二定时器，并触发随机接入过程接入所述目标小区。
可选的，所述预设定时器的状态为未超时，所述预配置的上行资源的有效状态为无效；
所述处理器3100具体用于：
触发随机接入过程接入目标小区；或，
关闭所述预设定时器，并触发随机接入过程接入所述目标小区；或，
重置所述预设定时器，并触发随机接入过程接入所述目标小区；或，
开启第二定时器，并触发随机接入过程接入所述目标小区；或，
监听所述目标小区的物理下行控制信道；或，
重置所述预设定时器，并监听所述目标小区的物理下行控制信道；或，
开启第一定时器，监听所述目标小区的物理下行控制信道。
可选的，若所述预设定时器的状态为超时，所述预配置的上行资源的有效状态为有效；
所述处理器3100具体用于：
触发RRC重建过程；或，
进入空闲态；或，
触发NAS恢复过程；或，
进入空闲态，并触发NAS恢复过程；或，
释放所述上行资源，并触发随机接入过程接入所述目标小区；或，
释放所述上行资源，并开启第二定时器；所述终端触发随机接入过程接入所述目标小区；或，
开启第一定时器，监听所述目标小区的物理下行控制信道；或，
在所述上行资源有效期内在所述上行资源发送上行数据。
可选的，所述处理器3100还用于：
开启第一定时器，监听所述目标小区的物理下行控制信道之后，若在所述第一定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭第一定时器；或，
若所述第一定时器超时，未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
可选的，所述处理器3100还用于：
开启第二定时器，并触发随机接入过程接入所述目标小区之后，若在所述第二定时器超时前，完成了所述随机接入过程，则关闭第二定时器；或，
若所述第二定时器超时，未接入所述目标小区，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
可选的，所述处理器3100还用于：
触发随机接入过程接入所述目标小区之后，若所述终端的MAC层指示随机接入失败，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
可选的，所述处理器3100还用于：
触发随机接入过程接入所述目标小区之后，若在所述预设定时器超时前，完成了所述随机接入过程，则关闭所述预设定时器；或，
若所述预设定时器超时，未接入所述目标小区，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
可选的，所述处理器3100还用于：
监听所述目标小区的物理下行控制信道之后，若在所述预设定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭所述预设定时器；或，
若所述预设定时器超时，未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
可选的，所述处理器3100还用于：
在所述上行资源有效期内在所述上行资源发送上行数据之后，若在所述上行资源有效期间，监听到以所述终端的临时标识符加扰的下行控制信道的信令或接收到成功发送上行数据的响应消息，则释放所述上行资源；
若所述上行资源有效期结束，未监听到以所述终端的临时标识符加扰的下行控制信道的信令或未接收到成功发送上行数据的响应消息，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态并触发NAS层恢复过程；
触发RRC重建过程。
基于相同的发明构思，本发明实施例中还提供了一种小区接入失败后的处理装置，由于该装置即是本发明实施例中的方法中的装置，并且该装置解决问题的原理与该方法相似，因此该装置的实施可以参见方法的实施，重复之处不再赘述。
如图4所示，本公开实施例还提供一种小区接入失败后的处理装置，该 装置包括：
接入模块401和处理模块402。
其中，接入模块401，用于根据网络配置进行目标小区接入；
处理模块402，用于在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
在一种可能的实现方式中，所述预配置的上行资源的有效状态为无效；
所述处理模块402具体用于：
触发无线资源控制RRC重建过程；或，
进入空闲态；或，
触发非接入层NAS恢复过程；或，
进入空闲态，并触发NAS恢复过程；或，
触发随机接入过程接入所述目标小区；或，
开启第一定时器，监听所述目标小区的物理下行控制信道；或，
开启第二定时器，并触发随机接入过程接入所述目标小区。
在一种可能的实现方式中，所述预设定时器的状态为未超时，所述预配置的上行资源的有效状态为无效；
所述处理模块402具体用于：
触发随机接入过程接入目标小区；或，
关闭所述预设定时器，并触发随机接入过程接入所述目标小区；或，
重置所述预设定时器，并触发随机接入过程接入所述目标小区；或，
开启第二定时器，并触发随机接入过程接入所述目标小区；或，
监听所述目标小区的物理下行控制信道；或，
重置所述预设定时器，并监听所述目标小区的物理下行控制信道；或，
开启第一定时器，监听所述目标小区的物理下行控制信道。
在一种可能的实现方式中，若所述预设定时器的状态为超时，所述预配置的上行资源的有效状态为有效；
所述处理模块402具体用于：
触发RRC重建过程；或，
进入空闲态；或，
触发NAS恢复过程；或，
进入空闲态，并触发NAS恢复过程；或，
释放所述上行资源，并触发随机接入过程接入所述目标小区；或，
释放所述上行资源，并开启第二定时器；所述终端触发随机接入过程接入所述目标小区；或，
开启第一定时器，监听所述目标小区的物理下行控制信道；或，
在所述上行资源有效期内在所述上行资源发送上行数据。
在一种可能的实现方式中，所述处理模块402还用于：
开启第一定时器，监听所述目标小区的物理下行控制信道之后，若在所述第一定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭第一定时器；或，
若所述第一定时器超时，未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块402还用于：
开启第二定时器，并触发随机接入过程接入所述目标小区之后，若在所述第二定时器超时前，完成了所述随机接入过程，则关闭第二定时器；或，
若所述第二定时器超时，未接入所述目标小区，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块402还用于：
触发随机接入过程接入所述目标小区之后，若所述终端的MAC层指示随机接入失败，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块402还用于：
触发随机接入过程接入所述目标小区之后，若在所述预设定时器超时前，完成了所述随机接入过程，则关闭所述预设定时器；或，
若所述预设定时器超时，未接入所述目标小区，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块402还用于：
监听所述目标小区的物理下行控制信道之后，若在所述预设定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭所述预设定时器；或，
若所述预设定时器超时，未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态，并触发NAS恢复过程；
触发RRC重建过程。
在一种可能的实现方式中，所述处理模块402还用于：
在所述上行资源有效期内在所述上行资源发送上行数据之后，若在所述上行资源有效期内，监听到以所述终端的临时标识符加扰的下行控制信道的信令或接收到成功发送上行数据的响应消息，则释放所述上行资源；
若所述上行资源有效期结束，未监听到以所述终端的临时标识符加扰的下行控制信道的信令或未接收到成功发送上行数据的响应消息，则执行预设操作；
其中，所述预设操作包括以下中的一种：
进入空闲态；
触发NAS恢复过程；
进入空闲态并触发NAS层恢复过程；
触发RRC重建过程。
本公开实施例还提供一种计算机可读非易失性存储介质，包括程序代码，当所述程序代码在计算终端上运行时，所述程序代码用于使所述计算终端执行上述本发明实施例信道状态信息上报的方法的步骤。
以上参照示出根据本公开实施例的方法、装置(系统)和/或计算机程序产品的框图和/或流程图描述本公开。应理解，可以通过计算机程序指令来实现框图和/或流程图示图的一个块以及框图和/或流程图示图的块的组合。可以将这些计算机程序指令提供给通用计算机、专用计算机的处理器和/或其它可编程数据处理装置，以产生机器，使得经由计算机处理器和/或其它可编程数据处理装置执行的指令创建用于实现框图和/或流程图块中所指定的功能/动作的方法。
相应地，还可以用硬件和/或软件(包括固件、驻留软件、微码等)来实施本公开。更进一步地，本公开可以采取计算机可使用或计算机可读存储介 质上的计算机程序产品的形式，其具有在介质中实现的计算机可使用或计算机可读程序代码，以由指令执行系统来使用或结合指令执行系统而使用。在本公开上下文中，计算机可使用或计算机可读介质可以是任意介质，其可以包含、存储、通信、传输、或传送程序，以由指令执行系统、装置或设备使用，或结合指令执行系统、装置或设备使用。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (22)

  1. 一种小区接入失败后的处理方法，其特征在于，所述方法包括：
    终端根据网络配置进行目标小区接入；
    所述终端在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
  2. 根据权利要求1所述的方法，其特征在于，所述预配置的上行资源的有效状态为无效；
    所述终端根据预配置的上行资源的有效状态进行处理，包括：
    所述终端触发无线资源控制RRC重建过程；或，
    所述终端进入空闲态；或，
    所述终端触发非接入层NAS恢复过程；或，
    所述终端进入空闲态，并触发NAS恢复过程；或，
    所述终端触发随机接入过程接入所述目标小区；或，
    所述终端开启第一定时器，监听所述目标小区的物理下行控制信道；或，
    所述终端开启第二定时器，并触发随机接入过程接入所述目标小区。
  3. 根据权利要求1所述的方法，其特征在于，所述预设定时器的状态为未超时，所述预配置的上行资源的有效状态为无效；
    所述终端根据预设定时器的状态和预配置的上行资源的有效状态进行处理，包括：
    所述终端触发随机接入过程接入目标小区；或，
    所述终端关闭所述预设定时器，并触发随机接入过程接入所述目标小区；或，
    所述终端重置所述预设定时器，并触发随机接入过程接入所述目标小区；或，
    所述终端开启第二定时器，并触发随机接入过程接入所述目标小区；或，
    所述终端监听所述目标小区的物理下行控制信道；或，
    所述终端重置所述预设定时器，并监听所述目标小区的物理下行控制信道；或，
    所述终端开启第一定时器，监听所述目标小区的物理下行控制信道。
  4. 根据权利要求1所述的方法，其特征在于，若所述预设定时器的状态为超时，所述预配置的上行资源的有效状态为有效；
    根据预设定时器的状态和预配置的上行资源的有效状态进行处理，包括：
    所述终端触发RRC重建过程；或，
    所述终端进入空闲态；或，
    所述终端触发NAS恢复过程；或，
    所述终端进入空闲态，并触发NAS恢复过程；或，
    所述终端释放所述上行资源，并触发随机接入过程接入所述目标小区；或，
    所述终端释放所述上行资源，并开启第二定时器；所述终端触发随机接入过程接入所述目标小区；或，
    所述终端开启第一定时器，监听所述目标小区的物理下行控制信道；或，
    所述终端在所述上行资源有效期内在所述上行资源发送上行数据。
  5. 根据权利要求2-4任一所述的方法，其特征在于，所述终端开启第一定时器，监听所述目标小区的物理下行控制信道之后，还包括：
    若所述终端在所述第一定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则所述终端关闭第一定时器；或，
    若所述第一定时器超时，所述终端未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则所述终端执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  6. 根据权利要求2-4任一所述的方法，其特征在于，所述终端开启第二定时器，并触发随机接入过程接入所述目标小区之后，还包括：
    若所述终端在所述第二定时器超时前，完成了所述随机接入过程，则所述终端关闭第二定时器；或，
    若所述第二定时器超时，所述终端未接入所述目标小区，则所述终端执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  7. 根据权利要求2-4任一所述的方法，其特征在于，所述终端触发随机接入过程接入所述目标小区之后，还包括：
    若所述终端的MAC层指示随机接入失败，则所述终端执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  8. 根据权利要求3所述的方法，其特征在于，所述终端触发随机接入过程接入所述目标小区之后，还包括：
    若所述终端在所述预设定时器超时前，完成了所述随机接入过程，则所述终端关闭所述预设定时器；或，
    若所述预设定时器超时，所述终端未接入所述目标小区，则所述终端执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  9. 根据权利要求3所述的方法，其特征在于，所述终端监听所述目标小区的物理下行控制信道之后，还包括：
    若所述终端在所述预设定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则所述终端关闭所述预设定时器；或，
    若所述预设定时器超时，所述终端未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则所述终端执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  10. 根据权利要求4所述的方法，其特征在于，所述终端在所述上行资源有效期内在所述上行资源发送上行数据之后，还包括：
    若所述终端在所述上行资源有效期间，监听到以所述终端的临时标识符加扰的下行控制信道的信令或接收到成功发送上行数据的响应消息，则所述终端释放所述上行资源；
    若所述上行资源有效期结束，所述终端未监听到以所述终端的临时标识符加扰的下行控制信道的信令或未接收到成功发送上行数据的响应消息，则所述终端执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态并触发NAS层恢复过程；
    触发RRC重建过程。
  11. 一种终端，其特征在于，所述终端包括：处理器和存储器；
    其中，处理器，用于读取存储器中的程序并执行下列过程：
    根据网络配置进行目标小区接入；
    在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
  12. 根据权利要求11所述的终端，其特征在于，所述预配置的上行资源的有效状态为无效；
    所述处理器具体用于：
    触发无线资源控制RRC重建过程；或，
    进入空闲态；或，
    触发非接入层NAS恢复过程；或，
    进入空闲态，并触发NAS恢复过程；或，
    触发随机接入过程接入所述目标小区；或，
    开启第一定时器，监听所述目标小区的物理下行控制信道；或，
    开启第二定时器，并触发随机接入过程接入所述目标小区。
  13. 根据权利要求11所述的终端，其特征在于，所述预设定时器的状态为未超时，所述预配置的上行资源的有效状态为无效；
    所述处理器具体用于：
    触发随机接入过程接入目标小区；或，
    关闭所述预设定时器，并触发随机接入过程接入所述目标小区；或，
    重置所述预设定时器，并触发随机接入过程接入所述目标小区；或，
    开启第二定时器，并触发随机接入过程接入所述目标小区；或，
    监听所述目标小区的物理下行控制信道；或，
    重置所述预设定时器，并监听所述目标小区的物理下行控制信道；或，
    开启第一定时器，监听所述目标小区的物理下行控制信道。
  14. 根据权利要求11所述的终端，其特征在于，若所述预设定时器的状态为超时，所述预配置的上行资源的有效状态为有效；
    所述处理器具体用于：
    触发RRC重建过程；或，
    进入空闲态；或，
    触发NAS恢复过程；或，
    进入空闲态，并触发NAS恢复过程；或，
    释放所述上行资源，并触发随机接入过程接入所述目标小区；或，
    释放所述上行资源，并开启第二定时器；所述终端触发随机接入过程接入所述目标小区；或，
    开启第一定时器，监听所述目标小区的物理下行控制信道；或，
    在所述上行资源有效期内在所述上行资源发送上行数据。
  15. 根据权利要求12-14任一所述的终端，其特征在于，所述处理器还用于：
    开启第一定时器，监听所述目标小区的物理下行控制信道之后，若在所述第一定时器超时前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭第一定时器；或，
    若所述第一定时器超时，所述终端未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  16. 根据权利要求12-14任一所述的终端，其特征在于，所述处理器还用于：
    开启第二定时器，并触发随机接入过程接入所述目标小区之后，若在所述第二定时器超时前，完成了所述随机接入过程，则关闭第二定时器；或，若所述第二定时器超时，所述终端未接入所述目标小区，则执行预设操 作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  17. 根据权利要求12-14任一所述的终端，其特征在于，所述处理器还用于：
    触发随机接入过程接入所述目标小区之后，若所述终端的MAC层指示随机接入失败，则执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  18. 根据权利要求13所述的终端，其特征在于，所述处理器还用于：
    触发随机接入过程接入所述目标小区之后，若在所述预设定时器超时前，完成了所述随机接入过程，则关闭所述预设定时器；或，
    若所述预设定时器超时，所述终端未接入所述目标小区，则执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  19. 根据权利要求13所述的终端，其特征在于，所述处理器还用于：
    监听所述目标小区的物理下行控制信道之后，若在所述预设定时器超时 前，监听到以所述终端的临时标识符加扰的下行控制信道的信令，则关闭所述预设定时器；或，
    若所述预设定时器超时，所述终端未监听到以所述终端的临时标识符加扰的下行控制信道的信令，则执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态，并触发NAS恢复过程；
    触发RRC重建过程。
  20. 根据权利要求14所述的终端，其特征在于，所述处理器还用于：
    在所述上行资源有效期内在所述上行资源发送上行数据之后，若在所述上行资源有效期间，监听到以所述终端的临时标识符加扰的下行控制信道的信令或接收到成功发送上行数据的响应消息，则释放所述上行资源；
    若所述上行资源有效期结束，未监听到以所述终端的临时标识符加扰的下行控制信道的信令或未接收到成功发送上行数据的响应消息，则执行预设操作；
    其中，所述预设操作包括以下中的一种：
    进入空闲态；
    触发NAS恢复过程；
    进入空闲态并触发NAS层恢复过程；
    触发RRC重建过程。
  21. 一种小区接入失败后的处理装置，其特征在于，所述装置包括：
    接入模块，用于根据网络配置进行目标小区接入；
    处理模块，用于在未成功接入目标小区后，根据预设定时器的状态和/或预配置的上行资源的有效状态进行处理。
  22. 一种计算机存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1～10任一所述方法的步骤。
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