WO2018145454A1 - 状态转换方法、状态保持方法、装置及用户设备 - Google Patents

状态转换方法、状态保持方法、装置及用户设备 Download PDF

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Publication number
WO2018145454A1
WO2018145454A1 PCT/CN2017/101188 CN2017101188W WO2018145454A1 WO 2018145454 A1 WO2018145454 A1 WO 2018145454A1 CN 2017101188 W CN2017101188 W CN 2017101188W WO 2018145454 A1 WO2018145454 A1 WO 2018145454A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
cell
state
location area
request
Prior art date
Application number
PCT/CN2017/101188
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English (en)
French (fr)
Inventor
江小威
Original Assignee
北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Publication of WO2018145454A1 publication Critical patent/WO2018145454A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/06—De-registration or detaching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a state transition method, a state maintaining method, and an apparatus.
  • the RRC state of the UE includes: a connected state and an idle state.
  • the connection state refers to a state in which a RRC (Radio Resource Control) connection is established between the UE and the base station, and the UE can transmit and receive data with the base station in the connected state; the idle state means that the UE and the base station are not established.
  • RRC Radio Resource Control
  • the UE cannot send data to the base station in the idle state, but can receive the system message and the paging message sent by the base station.
  • the UE In order to solve the problem that even if the UE performs small-data packet service transmission and reception in the 4G, it needs to switch back and forth between the connected state and the idle state, resulting in waste of signaling resources.
  • the UE In addition to the connected state and the idle state, the UE also introduces an intermediate state between the connected state and the idle state, which is called an inactive state, and the UE in the inactive state can perform small packet service transmission and reception. Thereby saving signaling resources, It has better performance improvement for user equipment of Ultra Reliable & Low Latency Communication (URLLC) in 5G.
  • URLLC Ultra Reliable & Low Latency Communication
  • the embodiment of the present application provides a state transition method, a state maintaining method, and a device. The technical solution is as follows:
  • a state transition method comprising:
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives the first indication of the non-access stratum, and the first indication is used to indicate that the state of the non-access stratum is changed from the registration state to the non-registration state.
  • the first predetermined condition includes:
  • the access layer of the user equipment After the access layer of the user equipment reports to the non-access stratum that the access layer status is the inactive state, the access layer of the user equipment receives the second indication of the non-access stratum The second indication is used to indicate that the user equipment establishes an RRC connection.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives a third indication of the non-access stratum, and the third indication is used to indicate that the non-access stratum state is changed from the connected state to the idle state;
  • the inactive state in the access layer state corresponds to the connected state in the non-access stratum state.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives the fourth indication of the non-access stratum, and the fourth indication is used to indicate that the non-access stratum state is changed from an idle state with an inactive state indication to not Idle state with an inactive state indication;
  • the inactive state in the access layer state corresponds to an idle state in the non-access stratum state with an inactive state indication.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives a fifth indication of the non-access stratum, and the fifth indication is used to indicate that the user equipment is converted to the idle state.
  • the first predetermined condition includes:
  • the user equipment is rejected when accessing a new PLMN.
  • the first predetermined condition includes:
  • the SIM card of the user equipment is not inserted.
  • the first predetermined condition includes:
  • the decision result of the user equipment is that the first connection establishment request needs to be sent to the first type of cell;
  • the first type of cell refers to a cell used to provide a restricted service, and the first connection establishment request is used to request access to the first type of cell.
  • the first predetermined condition includes:
  • the user equipment does not search for any campable cell
  • the user equipment does not search for the duration of any campable cell for a first predetermined duration.
  • the first predetermined condition includes:
  • the user equipment resides in a second type of cell
  • the second type of cell refers to a pre-configured cell that is prohibited from working in the inactive state.
  • the method further includes:
  • the user equipment sends a second connection establishment request, and the second connection establishment request is used to request access to the second type of cell.
  • the first predetermined condition includes:
  • the user equipment After receiving the third connection establishment request, the user equipment receives the reject access message
  • the third connection establishment request is used to request to access the user equipment to a camping cell.
  • the first predetermined condition includes:
  • the user equipment After receiving the third connection establishment request, the user equipment receives the reject access message carrying the sixth indication, where the third connection establishment request is used to request the user equipment to access the resident cell, The sixth indication is used to indicate that the user equipment is converted to the idle state;
  • the user equipment After receiving the third connection establishment request, the user equipment receives the reject access message that does not carry the seventh indication, where the third connection setup request is used to request to access the user equipment to the resident cell.
  • the seventh indication is used to indicate that the user equipment remains in the inactive state.
  • the first predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request, the user equipment receives the reject update message;
  • the RAN side location area update request is used to request to update the location area of the RAN side of the user equipment.
  • the first predetermined condition includes:
  • the number of consecutive failures of the update failure after the user equipment initiates the RAN side location area update request reaches a predetermined number of times
  • the RAN side location area update request is used to request to update the location area of the RAN side of the user equipment.
  • the first predetermined condition includes:
  • the target network is a network that supports the user equipment to work in the inactive state.
  • the first predetermined condition includes:
  • the user equipment accesses the first predetermined network in a cell reselection process
  • the first predetermined network refers to a pre-configured network that prohibits the user equipment from retaining the context in the inactive state.
  • the first predetermined condition includes:
  • the second predetermined duration refers to a pre-configured maximum duration that allows the user equipment to remain in the inactive state.
  • a state retention method comprising:
  • the user equipment maintains the inactive state when the user equipment is in an inactive state and meets a second predetermined condition
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the second predetermined condition includes:
  • the user equipment resides in a first type of cell
  • the first type of cell refers to a cell that provides limited service.
  • the method further includes:
  • the user equipment sends a first connection recovery request, where the first connection recovery request is used to resume accessing the first type of cell according to the context saved in the inactive state;
  • the user equipment deletes a context saved in the inactive state, the user equipment switches from the inactive state to an idle state, and the user equipment sends a first connection establishment request, A first connection setup request is used to request access to the first type of cell.
  • the method further includes:
  • the user equipment does not send a RAN side location area update request when the first type of cell camps;
  • the user equipment sends the RAN side location area update request when accessing the first type of cell for the first time.
  • the method further includes:
  • the user equipment When the user equipment accesses the third type of cell, the user equipment sends a RAN side location area update request, and the third type of cell refers to a cell that provides normal service.
  • the second predetermined condition includes:
  • the user equipment After the user equipment accessing the first PLMN is rejected, the user equipment first camps on the first type of cell; the user equipment successfully accesses the second PLMN according to the indication of the non-access stratum and resides in the first Three types of cells;
  • the first type of cell refers to a cell that provides a restricted service
  • the third type of cell refers to a cell that provides a normal service.
  • the second predetermined condition includes:
  • the user equipment does not search for any campable cells.
  • the second predetermined condition includes:
  • the user equipment resides in a second type of cell
  • the second type of cell refers to a pre-configured cell that prohibits performing a predetermined service in the inactive state.
  • the method further includes:
  • the user equipment does not send a RAN side location area update request when camping on the second type of cell;
  • the user equipment sends a RAN side location area update request when accessing the fourth type of cell;
  • the user equipment If the user equipment is switched to the idle state, the user equipment sends the RAN side location area update request when accessing the fourth type of cell;
  • the user equipment sends the RAN side location area update request when accessing the fourth type of cell, if the user equipment sends the refusal update message after sending the RAN side location area update request;
  • the user equipment If the user equipment receives the accept message carrying the eighth indication after sending the RAN side location area update request, the user equipment sends the RAN side location area update when accessing the fourth type of cell
  • the eighth indication is used to instruct the user equipment to prohibit data transmission and reception in the inactive state, and the acceptance message is received by the user equipment after sending the RAN side location area update request. response;
  • the user equipment does not send the RAN side location area update request when the second type of cell is camped, and the user equipment sends the RAN side location area update request when accessing the fourth type of cell;
  • the fourth type of cell refers to a pre-configured cell that is allowed to work in the inactive state.
  • the method further includes:
  • the user equipment does not perform data transceiving services while maintaining the inactive state.
  • the method further includes:
  • the user equipment sends a second connection recovery request, and the second connection recovery request is used to request to resume accessing the second type of cell according to the context of the user equipment in an inactive state.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the second connection establishment request, the user equipment receives the reject access message carrying the ninth indication;
  • the second connection establishment request is used to request to access the user equipment to the camped cell
  • the ninth indication is used to indicate that the user equipment remains in the inactive state.
  • the second predetermined condition includes:
  • the user equipment After receiving the RAN side location area update request, the user equipment receives an accept message, where the accept message carries a tenth indication, where the tenth indication is used to instruct the user equipment to prohibit execution of data in the inactive state.
  • Transceiver service
  • the accept message is a response that is received by the user equipment after sending the RAN side location area update request.
  • the second predetermined condition includes:
  • the user equipment After receiving the RAN side location area update request, the user equipment receives the accept message; and successfully performs the RAN side location area update according to the accept message;
  • the receiving message is a response that is received by the user equipment after sending the RAN side location area update request, and the RAN side location area update request does not carry a predetermined identifier, where the predetermined identifier is used to request to enter the connection. state.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request that carries the predetermined identifier, the user equipment receives the accept message including the reject indication, and successfully enters according to the accept message.
  • the predetermined identifier is used to indicate that the user equipment requests to enter a connection state
  • the rejection indication is used to indicate that the user equipment is prohibited from entering a connection state
  • the accept message is that the user equipment is sending the RAN side location.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request and the number of consecutive failures of the update fails to reach the first predetermined number of times, the user equipment resends the RAN side location area update request and re-counts the number of times after waiting for the third predetermined duration.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request and the number of consecutive failures of the update fails to reach the second predetermined number of times, the user equipment stops updating and waits for the user equipment to access the camped cell to resend the RAN side. a location area update request or initiate a third connection recovery request;
  • the third connection recovery request is used to request to resume access to the resident cell according to the context saved in the inactive state.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request and the number of consecutive failures of the update fails to reach the third predetermined number of times, the user equipment stops updating and waits for the user equipment to access the new cell, and re-initiates the RAN side location. Regional update request.
  • the second predetermined condition includes:
  • the user equipment accesses other networks than the target network during the cell reselection process
  • the target network is a network that supports the user equipment to work in the inactive state.
  • the second predetermined condition includes:
  • the user equipment accesses other networks than the target network during the cell reselection process. And the duration of access to the other network is within a fourth predetermined duration;
  • the target network is a network that supports the user equipment to work in the inactive state.
  • the second predetermined condition includes:
  • the user equipment accesses a second predetermined network in a cell reselection process
  • the second predetermined network refers to a pre-configured network that allows to keep the context of the user equipment in the inactive state, and the second predetermined network belongs to other networks than the target network;
  • the target network is a network that supports the user equipment to work in the inactive state.
  • the second predetermined condition includes:
  • Maintaining, by the user equipment, the duration of the inactive state is within a fifth predetermined duration
  • the fifth predetermined duration refers to a pre-configured maximum duration that allows the user equipment to maintain the inactive state.
  • the second predetermined condition includes:
  • the user equipment initiates connection recovery failure.
  • the second predetermined condition includes:
  • the user equipment fails to send data in the inactive state or fails to receive data.
  • a state transition method is provided, the method further comprising:
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the third predetermined condition includes:
  • the user equipment successfully performs RAN side location area update according to the accept message
  • the RAN side location area update request carries a predetermined identifier, where the predetermined identifier is used to request to enter the connection state; the accept message is used to indicate that the location area of the user equipment is accepted to be updated and the user equipment is allowed. Enter the connected state.
  • the RAN side location area update request further includes a NAS layer location area update request, where the user equipment sends a RAN side location area update request, and before receiving the accept message, the method further includes:
  • the non-access stratum of the user equipment determines that the user equipment enters a new location update area
  • the non-access stratum of the user equipment sends the NAS layer location area update request to the access layer.
  • the user equipment sends a RAN side location area update request, and before receiving the accept message, the method further includes:
  • the non-access stratum of the user equipment determines that the user equipment enters a new location update area
  • the non-access stratum of the user equipment sends a NAS layer location area update request to the access layer, or the user
  • the non-access stratum of the device indicates that the access layer establishes an RRC connection, or the non-access stratum of the user equipment instructs the access stratum to restore the RRC connection.
  • the accepting message carries an eleventh indication, where the eleventh indication is used to indicate that the user equipment is allowed to enter the connected state;
  • the accept message does not carry any indication, and the accept message is used to implicitly indicate that the user equipment is allowed to enter the connected state.
  • a state transition apparatus for use in a user equipment, the apparatus comprising:
  • a processing module configured to: when the user equipment is in an inactive state and meets a first predetermined condition, converting the user equipment from the inactive state to an idle state;
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives the first indication of the non-access stratum, and the first indication is used to indicate that the state of the non-access stratum is changed from the registration state to the non-registration state.
  • the first predetermined condition includes:
  • the access layer of the user equipment After the access layer of the user equipment reports to the non-access stratum that the access layer status is the inactive state, the access layer of the user equipment receives the second indication of the non-access stratum The second indication is used to indicate that the user equipment establishes an RRC connection.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives a third indication of the non-access stratum, and the third indication is used to indicate that the non-access stratum state is changed from the connected state to the idle state;
  • the inactive state in the access layer state corresponds to the connected state in the non-access stratum state.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives the fourth indication of the non-access stratum, and the fourth indication is used to indicate that the non-access stratum state is changed from an idle state with an inactive state indication to not Idle state with an inactive state indication;
  • the inactive state in the access layer state corresponds to an idle state in the non-access stratum state with an inactive state indication.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives a fifth indication of the non-access stratum, and the fifth indication is used to indicate that the user equipment is converted to the idle state.
  • the first predetermined condition includes:
  • the user equipment is rejected when accessing a new PLMN.
  • the first predetermined condition includes:
  • the SIM card of the user equipment is not inserted.
  • the first predetermined condition includes:
  • the decision result of the user equipment is that the first connection establishment request needs to be sent to the first type of cell;
  • the first type of cell refers to a cell used to provide a restricted service, and the first connection establishment request is used to request access to the first type of cell.
  • the first predetermined condition includes:
  • the user equipment does not search for any campable cell
  • the user equipment does not search for the duration of any campable cell for a first predetermined duration.
  • the first predetermined condition includes:
  • the user equipment resides in a second type of cell
  • the second type of cell refers to a pre-configured cell that is prohibited from working in the inactive state.
  • the device further includes:
  • a sending module configured to send, by the user equipment, a second connection establishment request, where the second connection establishment request is used to request access to the second type of cell.
  • the first predetermined condition includes:
  • the user equipment After receiving the third connection establishment request, the user equipment receives the reject access message carrying the sixth indication, where the third connection establishment request is used to request the user equipment to access the resident cell, The sixth indication is used to indicate that the user equipment is converted to the idle state;
  • the user equipment After receiving the third connection establishment request, the user equipment receives the reject access message that does not carry the seventh indication, where the third connection establishment request is used to request to connect the user equipment. And entering a camping cell, where the seventh indication is used to indicate that the user equipment remains in the inactive state.
  • the first predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request, the user equipment receives the reject update message;
  • the RAN side location area update request is used to request to update the location area of the RAN side of the user equipment.
  • the first predetermined condition includes:
  • the number of consecutive failures of the update failure after the user equipment initiates the RAN side location area update request reaches a predetermined number of times
  • the RAN side location area update request is used to request to update the location area of the RAN side of the user equipment.
  • the first predetermined condition includes:
  • the user equipment After the user equipment accesses the network other than the target network in the cell reselection process, the user equipment re-accesses the target network and the context saved by the user equipment in the inactive state is lost;
  • the target network is a network that supports the user equipment to work in the inactive state.
  • the first predetermined condition includes:
  • the user equipment accesses the first predetermined network in a cell reselection process
  • the first predetermined network refers to a pre-configured network that prohibits the user equipment from retaining the context in the inactive state.
  • the first predetermined condition includes:
  • the second predetermined duration refers to a pre-configured maximum duration that allows the user equipment to remain in the inactive state.
  • a state maintaining device for a user.
  • the device comprises:
  • a processing module configured to maintain the inactive state when the user equipment is in an inactive state and meets a second predetermined condition
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the second predetermined condition includes:
  • the user equipment resides in a first type of cell
  • the first type of cell refers to a cell that provides limited service.
  • the device further includes:
  • a sending module configured to: after camping in the first type of cell, send a first connection recovery request, where the first connection recovery request is used to resume accessing the first according to a context saved in the inactive state Class cell
  • the sending module is configured to delete a context saved in the inactive state after the first type of cell is camped, and the user equipment switches from the inactive state to an idle state, where the user equipment And transmitting a first connection establishment request, where the first connection establishment request is used to request access to the first type of cell.
  • the device further includes:
  • a sending module configured to not send a RAN side location area update request when the first type of cell camps
  • the sending module is configured to send the RAN side location area update request when accessing the first type of cell for the first time.
  • the sending module is further configured to
  • the RAN side location area update request is sent, and the third type of cell refers to the cell providing normal service.
  • the second predetermined condition includes:
  • the user equipment After the user equipment accessing the first PLMN is rejected, the user equipment first camps on the first type of cell; the user equipment successfully accesses the second PLMN according to the indication of the non-access stratum and resides in the first Three types of cells;
  • the first type of cell refers to a cell that provides a restricted service
  • the third type of cell refers to a cell that provides a normal service.
  • the second predetermined condition includes:
  • the user equipment does not search for any campable cells.
  • the second predetermined condition includes:
  • the user equipment resides in a second type of cell
  • the second type of cell refers to a pre-configured cell that prohibits performing a predetermined service in the inactive state.
  • the device further includes:
  • a sending module configured to not send a RAN side location area update request when camping on the second type of cell
  • the sending module is further configured to send the RAN side location area update request when accessing the second type of cell for the first time;
  • the sending module is further configured to: when the RAN side location area changes, send a RAN side location area update request when accessing the fourth type of cell;
  • the sending module is further configured to: if the user equipment is converted to an idle state, send the RAN side location area update request when accessing the fourth type of cell;
  • the sending module is further configured to: when the RAN side location area update request is sent, after receiving the refusal update message, send the RAN side location area update request when accessing the fourth type of cell;
  • the sending module is further configured to: if the user equipment receives the accept message carrying the eighth indication after sending the RAN side location area update request, send the a RAN side location area update request; the eighth indication is used to instruct the user equipment to prohibit data transmission and reception in the inactive state, and the accept message is that the user equipment is transmitting the RAN side location area update The response received after the request;
  • the sending module is further configured to: when the user equipment camps on the second type of cell, does not send the RAN side location area update request, and the user equipment sends when accessing the fourth type of cell The RAN side location area update request;
  • the fourth type of cell refers to a pre-configured cell that is allowed to work in the inactive state.
  • the device further includes:
  • the processing module is further configured to not perform data transceiving services while maintaining the inactive state.
  • the device further includes:
  • a sending module configured to: after the inactive state is maintained, send a second connection recovery request, where the second connection recovery request is used to request to resume access according to the context of the user equipment in an inactive state Second class cell.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the second connection establishment request, the user equipment receives the reject access message carrying the ninth indication;
  • the second connection establishment request is used to request to access the user equipment to the camped cell
  • the ninth indication is used to indicate that the user equipment remains in the inactive state.
  • the second predetermined condition includes:
  • the user equipment After receiving the RAN side location area update request, the user equipment receives an accept message, where the accept message carries a tenth indication, where the tenth indication is used to instruct the user equipment to prohibit execution of data in the inactive state.
  • Transceiver service
  • the accept message is a response that is received by the user equipment after sending the RAN side location area update request.
  • the second predetermined condition includes:
  • the user equipment After receiving the RAN side location area update request, the user equipment receives the accept message; and successfully performs the RAN side location area update according to the accept message;
  • the receiving message is a response that is received by the user equipment after sending the RAN side location area update request, and the RAN side location area update request does not carry a predetermined identifier, where the predetermined identifier is used to request to enter a connection state. .
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request that carries the predetermined identifier, the user equipment receives the accept message including the reject indication, and successfully performs the RAN side location area update according to the accept message;
  • the predetermined identifier is used to indicate that the user equipment requests to enter a connection state
  • the rejection indication is used to indicate that the user equipment is prohibited from entering a connection state
  • the accept message is that the user equipment is sending the RAN side location.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request and the number of consecutive failures of the update fails to reach the first predetermined number of times, the user equipment resends the RAN side location area update request and re-counts the number of times after waiting for the third predetermined duration.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request and the number of consecutive failures of the update fails to reach the second predetermined number of times, the user equipment stops updating and waits for the user equipment to access the camped cell to resend the RAN side. a location area update request or initiate a third connection recovery request;
  • the third connection recovery request is used to request to resume access to the resident cell according to the context saved in the inactive state.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request and the number of consecutive failures of the update fails to reach the third predetermined number of times, the user equipment stops updating and waits for the user equipment to access the new cell, and re-initiates the RAN side location. Regional update request.
  • the second predetermined condition includes:
  • the user equipment accesses other networks than the target network during the cell reselection process
  • the target network is a network that supports the user equipment to work in the inactive state.
  • the second predetermined condition includes:
  • the user equipment accesses other networks except the target network during the cell reselection process, and the duration of access to the other network is within a fourth predetermined duration;
  • the target network is a network that supports the user equipment to work in the inactive state.
  • the second predetermined condition includes:
  • the user equipment accesses a second predetermined network in a cell reselection process
  • the second predetermined network refers to a pre-configured network that allows to keep the context of the user equipment in the inactive state, and the second predetermined network belongs to other networks than the target network;
  • the target network is a network that supports the user equipment to work in the inactive state.
  • the second predetermined condition includes:
  • Maintaining, by the user equipment, the duration of the inactive state is within a fifth predetermined duration
  • the fifth predetermined duration refers to a pre-configured maximum duration that allows the user equipment to maintain the inactive state.
  • the second predetermined condition includes:
  • the user equipment initiates connection recovery failure.
  • the second predetermined condition includes:
  • the user equipment fails to send data in the inactive state or fails to receive data.
  • a state transition apparatus for use in a user equipment, the apparatus further comprising:
  • a processing module configured to convert the user equipment from the inactive state to a connected state when the user equipment is in an inactive state and meets a third predetermined condition
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the third predetermined condition includes:
  • the user equipment successfully performs RAN side location area update according to the accept message
  • the RAN side location area update request carries a predetermined identifier, where the predetermined identifier is used to request to enter the connection state; the accept message is used to indicate that the location area of the user equipment is accepted to be updated and the user equipment is allowed. Enter the connected state.
  • the RAN side location area update request or the completion message corresponding to the RAN side location area update request further carries a NAS layer message
  • the processing module is further configured to: after the user equipment sends the RAN side location area update request, send the the access layer to the access layer by using the non-access stratum of the user equipment, before receiving the accept message
  • the NAS layer message, or the non-access stratum of the user equipment indicates that the access layer establishes an RRC connection, or the non-access stratum of the user equipment indicates that the access stratum restores the RRC connection.
  • the accepting message carries an eleventh indication, where the eleventh indication is used to indicate that the user equipment is allowed to enter the connected state;
  • the accept message does not carry any indication, and the accept message is used to implicitly indicate that the user equipment is allowed to enter the connected state.
  • the third predetermined condition includes:
  • the non-access stratum of the user equipment determines that the user equipment enters a new location update area
  • the non-access stratum of the user equipment sends a NAS layer location area update request to the access layer
  • the access layer of the user equipment sends a third connection establishment request or a third connection recovery request, where the third connection establishment request or the third connection recovery request carries the NAS layer location area update request;
  • the user equipment successfully establishes an RRC connection with the camping cell
  • the third connection establishment request is a request for requesting access to a camping cell, and the third connection recovery request is used to request to resume accessing the camped cell according to a context saved in the inactive state. Request.
  • a user equipment including:
  • a memory configured to store executable instructions of the processor
  • processor is configured to:
  • the inactive state is an intermediate state between the connected state and the idle state.
  • a user equipment including:
  • a memory configured to store executable instructions of the processor
  • processor is configured to:
  • the user equipment maintains the inactive state when the user equipment is in an inactive state and meets a second predetermined condition
  • the inactive state is an intermediate state between the connected state and the idle state.
  • a user equipment including:
  • a memory configured to store executable instructions of the processor
  • processor is configured to:
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the UE in the inactive state can perform the small-data packet service transmission and reception without switching to the connection state, and the UE can be transmitted and received even if the UE performs small-data packet service in the 4G. It is also necessary to switch back and forth between the RRC connected state and the RRC idle state, resulting in waste of signaling resources, and achieving the effect of the UE transmitting and receiving small data packet services in an inactive state and saving signaling resources.
  • FIG. 1 is a schematic structural diagram of a mobile communication system according to an exemplary embodiment of the present application.
  • FIG. 2 is a protocol architecture diagram of a mobile communication system according to an exemplary embodiment of the present application.
  • FIG. 3 is a schematic diagram showing a state of a NAS layer according to an exemplary embodiment of the present application.
  • FIG. 4 is a schematic diagram showing the state of an AS layer according to an exemplary embodiment of the present application.
  • FIG. 5 is a flowchart of a method of a state transition method according to an exemplary embodiment
  • FIG. 6A is a flowchart of a state transition method according to an exemplary embodiment
  • FIG. 6B is a flowchart of a state transition method according to an exemplary embodiment
  • FIG. 6C is a flowchart of a state transition method according to an exemplary embodiment
  • FIG. 7A is a flowchart of a state retention method according to an exemplary embodiment
  • FIG. 7B is a flowchart of a state retention method according to an exemplary embodiment
  • FIG. 8 is a flowchart of a state transition method according to an exemplary embodiment
  • FIG. 9 is a block diagram of a state transition device according to an exemplary embodiment.
  • FIG. 10 is a block diagram of a user equipment, according to an exemplary embodiment.
  • a “module” as referred to herein generally refers to a program or instruction stored in a memory that is capable of performing certain functions;
  • "unit” as referred to herein generally refers to a functional structure that is logically divided, the "unit” It can be implemented by pure hardware or a combination of hardware and software.
  • Multiple as referred to herein means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/” generally indicates before and after An associated object is an "or" relationship.
  • FIG. 1 is a schematic structural diagram of a mobile communication system according to an exemplary embodiment of the present application.
  • the mobile communication system is a 5G system, and the 5G system is also called a New Radio (NR) system.
  • the mobile communication system may also be a next generation communication system based on the 5G system, which is not limited in this embodiment.
  • the mobile communication system includes a User Equipment (UE) 120, an access network device 140, and a Mobility Management Entity (MME) 160.
  • UE User Equipment
  • MME Mobility Management Entity
  • the UE 120 refers to a device that performs data communication with access network device 140.
  • the UE 120 may communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the UE 120 may also be referred to as a Subscriber Unit, a Subscriber Station, a Mobile Station, Mobile station, remote station, access point, remote terminal, access terminal, user terminal (User Terminal), user agent (User Agent), Terminal (User Device).
  • the UE 120 may also be a relay device, which is not limited in this embodiment.
  • the access network device 140 and the MME 160 belong to the network side, and the network side includes: a Radio Access Network (RAN) and an Evolved Packet Core (EPC).
  • the RAN is responsible for all wireless related functions, including scheduling, radio resource management, retransmission protocols, coding, and various multi-antenna schemes;
  • the EPC is responsible for wireless but not required to provide a complete mobile broadband network, including Such as authentication, billing functions, and the establishment of end-to-end connections.
  • the access network device 140 is a network element device in the RAN
  • the MME 160 is a network element device in the EPC.
  • a wireless connection is established between the UE 120 and the access network device 140 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the 5G standard, for example, the wireless air interface is a New Radio (NR); or the wireless air interface may be a 5G based next generation mobile communication network.
  • NR New Radio
  • Wireless air interface for network technology is also compatible with wireless air interfaces of earlier generation mobile communication network technologies such as 2G, 3G and 4G.
  • the access network device 140 can be a base station, and the base station can be configured to convert the received radio frame with the IP packet message, and can also coordinate the attribute management of the air interface.
  • the base station may be a base station (gNode-B, gNB) in a 5G system.
  • the gNB is a base station employing a centralized distributed architecture.
  • the access network device 140 adopts a centralized distributed architecture it generally includes a central unit (CU) and at least two distributed units (DUs).
  • a centralized data unit is provided with a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer protocol stack;
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Media Access Control
  • a physical layer (Physical, PHY) protocol stack is provided in the unit.
  • the specific implementation manner of the access network device 140 in this embodiment is not limited.
  • Access network device 140 is also coupled to MME 160 via a wireless network or a wired network, such as an optical communication network.
  • the MME 160 is configured to be responsible for bearer connection/release of the UE, state management, and management of security keys.
  • FIG. 2 is a protocol architecture diagram of a mobile communication system shown in an exemplary embodiment of the present application.
  • the devices involved in the protocol architecture include: UE 120, access network device 140, and MME 160.
  • the protocol entity in the UE 120 is divided into two layers: a Non-Access Stratum (NAS) and an Access Stratum (AS). among them:
  • NAS Non-Access Stratum
  • AS Access Stratum
  • the NAS layer of the UE 120 communicates with the NAS layer of the MME 160 to complete the functional operation between the EPC and the terminal.
  • the AS layer of UE 120 includes: a PDCP protocol entity, an RLC protocol entity, a MAC protocol entity, and a PHY protocol entity.
  • the AS layer of the UE 120 communicates with the AS layer of the access network device 140 to perform functional operations between the UE and the RAN.
  • the AS layer is responsible for radio resource control (Radio Resource Control, RRC) establishment of a connection, transmission of an RRC message, establishment of a radio bearer, cancellation of a radio bearer, disconnection of an RRC connection, and the like.
  • RRC Radio Resource Control
  • the NAS layer and the AS layer of the UE 120 can each switch between different states.
  • the NAS layer state of the UE 120 includes two major states: an EMM-REGISTERED STATE and an EMM-DEREGISTERED STATE.
  • EMM is the abbreviation of EPS Mobility Management.
  • the registration state may be further divided into several sub-states, for example, the registration state is further divided into an EMM-Connected state and an EMM-Idle state.
  • the AS layer state of the UE 120 includes a Connect state, an inactive state, and an idle state, and the AS layer state is also called an RRC state. Since the AS layer state in the 4G system includes only the connected state and the idle state, the inactive state is a newly introduced state in the 5G system. among them:
  • the inactive state is an intermediate state between the intervening connected state and the idle state.
  • the inactive state includes, but is not limited to, at least one of the following features:
  • the UE 120 When in the inactive state, the UE 120 saves the context created when it is in the connected state, and the context may also be referred to as a UE context, an RRC context, and the like.
  • the context includes mobile network capabilities, authentication information, negotiated security algorithms, generated keys, created connection information, bearer information, and the like.
  • the access network device also saves the context of the UE 120.
  • the UE 120 can perform transmission and reception of predetermined data services.
  • the predetermined data service is a small data message service, for example, the UE is a vehicle device in the vehicle networking device or a sensor device in the Internet of Things device, and can send and receive small data messages in an inactive state.
  • mobility management is based on a cell reselection mechanism.
  • mobility management is the management of mobile terminal location information, security and business continuity.
  • the mobility management is performed when the UE 120 enters a new cell or a tracking area, and the UE performs a location area update process with the network side, so that the network side knows the current cell of the UE. position.
  • the mobility management is performed based on the cell handover mechanism; when the UE 120 is in the idle state, the mobility management is performed based on the cell reselection.
  • a location area update procedure between the UE 120 and the MME 160 may be referred to as a NAS layer location area update or an EPC side location area update; a location area update procedure between the UE 120 and the access network device 140, It may be referred to as a RAN side location area update or an AS layer location area update.
  • the AS layer states of the UE 120 include: a connected state, an inactive state, and an idle state.
  • the UE 120 when the UE 120 switches from the connected state to the inactive state, the UE 120 needs to save the context.
  • the UE 120 when the UE 120 switches from the inactive state to the connected state, if the UE 120 sends an RRC connection recovery request to the access network device 140, the UE 120 re-establishes the access network device in a restored form by using the context saved in the inactive state.
  • the camping cell provided by the 120 establishes an RRC connection, and switches to the connected state after the RRC connection is successfully reestablished. If the UE 120 sends an RRC connection setup request to the access network device 140, the UE 120 deletes the context saved in the inactive state, and the UE 120 The new form establishes an RRC connection with the camped cell provided by the access network device 120.
  • the UE 120 when the UE 120 switches from the inactive state to the idle state, the UE 120 deletes the context saved in the inactive state and then switches to the idle state.
  • the triggering of the UE 120 under the trigger condition, so that the state switching between the three states is a technical problem to be solved by various embodiments of the present application.
  • FIG. 5 is a flowchart of a method for a state transition method according to an exemplary embodiment. As shown in FIG. 5, the state transition method is applied to the UE 120 in the mobile communication system shown in FIG. 1, and the method includes the following steps:
  • step 501 when the user equipment is in an inactive state, it is detected whether the user equipment satisfies a predetermined condition, and the predetermined condition is one of a first predetermined condition, a second predetermined condition, and a third predetermined condition.
  • the access layer state (or RRC state) of the user equipment When the access layer state (or RRC state) of the user equipment is in an inactive state, it is detected whether the user equipment satisfies a predetermined condition, and the predetermined condition is one of a first predetermined condition, a second predetermined condition, and a third predetermined condition.
  • step 501 the “detecting” action in step 501 may be omitted.
  • step 502 or step 503 or step 504 is directly executed. This is not limited.
  • step 502 when the user equipment meets the first predetermined condition, the user equipment is converted from an inactive state to an idle state.
  • the access layer state (or RRC state) of the user equipment is also converted from an inactive state to an idle state.
  • step 503 when the user equipment meets the second predetermined condition, the user equipment remains in an inactive state.
  • the access layer state (or RRC state) of the user equipment is also kept in an inactive state.
  • step 504 when the user equipment meets the third predetermined condition, the user equipment is converted from the inactive state to the connected state.
  • the access layer state (or RRC state) of the user equipment is also converted from an inactive state to a connected state.
  • the step 503 the step 504, only one of the branches, or any two of the branches, may be executed in different embodiments, which is not limited in this embodiment.
  • the state transition method provided in the embodiment of the present application is implemented in a user equipment.
  • the inactive state is added, so that the UE in the inactive state can perform the small-data packet service transmission and reception without switching to the connected state, and the UE needs to be in the connected state even if the UE performs small-data packet service transmission and reception in the 4G.
  • Switching back and forth between the idle state and the idle state causes a waste of signaling resources, and the UE can also perform small-data packet service transmission and reception in an inactive state, save signaling resources, and improve the transmission and reception speed of small data packets.
  • FIG. 6A is a flowchart of a state transition method according to an exemplary embodiment. As shown in FIG. 6A, the state transition method is applied to the UE 120 of the mobile communication system shown in FIG. 1, and the method includes the following steps:
  • step 601 when the user equipment is in an inactive state, detecting whether the user equipment meets the first predetermined condition, where the first predetermined condition is that the access layer status of the user equipment does not correspond to the non-access stratum state;
  • the access layer status of the user equipment is in an inactive state.
  • the inactive state of the access layer of the user equipment may correspond to one or some sub-states of the non-access stratum, for example, the inactive state of the access stratum corresponds to the state A of the non-access stratum, and the state of the non-access stratum When A is converted to state B, since state B does not correspond to the inactive state of the access layer, a problem of state mismatch occurs between the access layer and the non-access stratum.
  • step 602 when the user equipment meets the first predetermined condition, the user equipment is switched from the inactive state to the idle state.
  • the first predetermined condition specifically includes at least one of the following conditions:
  • the first predetermined condition includes: the access layer of the user equipment receives the first indication of the non-access stratum, and the first indication is used to indicate that the non-access stratum state transitions from the registration state to the non-registration state.
  • the non-access stratum state of the user equipment is converted to an unregistered state, which is usually related to the local detach of the user equipment.
  • the non-access stratum state transitions to the unregistered state.
  • detachment There are two types of detachment: UE local detachment and network side attachment With. This embodiment relates to a local detach procedure of the UE.
  • the user equipment cannot find a cell camp for a period of time to locally deactivate all EPS bearers and perform local detachment.
  • the user equipment sends a detach request, but the detach request is rejected by the camping cell, and the reason for the rejection is “prohibiting the UE from initiating signalling by access signaling” (access is barred for originating signalling) ", the user equipment performs local detachment.
  • the user equipment performs a local detach operation by receiving a paging message including an IMSI (International Mobile Subscriber Identification Number) of the user equipment. Since the base station saves the context of the user equipment, it uses a temporary Cell Radio-Network Temporary Identifier (C-RNTI) to page the user equipment, and when the base station loses the context of the user equipment, it uses the IMSI. To page the user equipment, if the user equipment receives the paging message carrying the IMSI sent by the base station, indicating that the base station has lost the context of the user equipment, the user equipment performs local detachment.
  • IMSI International Mobile Subscriber Identification Number
  • the state of the non-access stratum is changed from the registration state to the non-registration state, thereby causing the status of the access layer and the non-access stratum to be mismatched.
  • the user equipment needs to transition from an inactive state to an idle state.
  • the first predetermined condition includes: after the access layer of the user equipment reports the access layer status to the inactive state, the access layer of the user equipment receives the second indication of the non-access stratum, and the second indication Used to instruct the user equipment to establish an RRC connection.
  • the non-access stratum does not directly inform the access layer of the state of the non-access stratum, but the access stratum actively reports the access stratum state to the non-access stratum, and the access stratum actively non-accesses.
  • the status reported by the layer may be: connected state, inactive state, and idle state.
  • the non-access stratum directly indicates the specific operation to the access stratum.
  • the access layer periodically reports the access layer status to the non-access stratum, or the access layer reports the access stratum status to the non-access stratum when the access stratum state changes.
  • the non-access stratum Since the access layer stores the context in the inactive state, the non-access stratum usually sends a connection recovery indication to the access layer to restore the RRC connection between the user equipment and the base station according to the saved context. However, if the non-access stratum sends a second indication to the access layer for some reason, and the second indication is used to indicate that the RRC connection is established between the user equipment and the base station in a new manner, the user equipment deletes the saved context and returns. In the idle state, a connection establishment request is then sent to the base station to establish an RRC connection with the base station in a new manner.
  • the first predetermined condition includes: the access layer of the user equipment receives the third indication of the non-access stratum, and the third indication is used to indicate that the non-access stratum state is changed from the connected state (EMM-Connected) to the idle state (EMM) -idle).
  • the inactive state in the access layer state corresponds to the connected state (EMM-Connected) in the non-access stratum state, or the inactive state in the access stratum state and the connected state in the non-access stratum state. (EMM-Connected) match.
  • ECM-Connected the inactive state in the access stratum state and the connected state in the non-access stratum state.
  • the first predetermined condition includes: receiving, by the access layer of the user equipment, a fourth indication of the non-access stratum, where the fourth indication is used to indicate that the non-access stratum state is changed from an idle state with an inactive state indication to not being There is an idle state indicated by an inactive state.
  • the inactive state in the access layer state corresponds to an EMM-idle with inactive state indication in the non-access stratum state, or inactive in the access stratum state.
  • the state matches the idle state with the inactive state indication in the non-access stratum state.
  • the access layer When the non-access stratum state has switched from an idle state with an inactive state indication to an EMM-idle without inactive state indication, the access layer also needs to switch from an inactive state. It is idle.
  • the first predetermined condition includes: the access layer of the user equipment receives the fifth indication of the non-access stratum, and the fifth indication is used to indicate that the user equipment is converted to the idle state.
  • the fifth indication is used to indicate that the access layer state of the user equipment is converted to an idle state.
  • the first predetermined condition includes: the user equipment is rejected when accessing a new PLMN (Public Land Mobile Network).
  • PLMN Public Land Mobile Network
  • the registered user equipment also searches for a new PLMN in some cases, such as when a service request or a tracking area update is rejected.
  • the tracking area update request is sent to the base station. If the base station replies to the PLMN that the PLMN is not allowed to access, the non-access stratum state of the user equipment is switched to the unregistered state, and the access layer switching of the user equipment is performed. To the idle state.
  • the state transition method provided in the embodiment of the present application, when the state of the access layer and the non-access stratum of the user equipment does not match, the user equipment transitions from the inactive state to the idle state, thereby saving the user.
  • the resources of the device when the state of the access layer and the non-access stratum of the user equipment does not match, the user equipment transitions from the inactive state to the idle state, thereby saving the user.
  • FIG. 6B is a flowchart of a state transition method according to an exemplary embodiment. As shown in FIG. 6B, the state transition method is applied to the UE 120 in the implementation environment shown in FIG. 1, and includes the following steps:
  • step 603 when the user equipment is in an inactive state, detecting whether the user equipment meets the first predetermined condition, where the first predetermined condition includes: when the user equipment resides in the first type of cell, the decision result of the user equipment is required Sending a first connection establishment request to the first type of cell;
  • the first type of cell refers to a cell used to provide restricted services.
  • the first type of cell is also called an acceptable cell.
  • the first type of cell can only provide services such as emergency calls.
  • the process proceeds to step 604.
  • sending the first connection establishment request may be determined by the access layer, or may be non-accessed.
  • the layer indicates the access layer determination.
  • step 604 when the user equipment meets the first predetermined condition, the user equipment is transitioned from the inactive state to the idle state.
  • the user equipment deletes the context saved in the inactive state, and converts the access layer state of the user equipment from the inactive state to the idle state.
  • this step is an optional step, and the user equipment may directly perform step 605 while remaining inactive.
  • step 605 the user equipment sends a connection establishment request to the first type of cell.
  • a connection establishment request is sent to the first type of cell.
  • steps 603 to 605 in this embodiment have no direct timing relationship with the steps in the previous embodiment, and the two can be independently executed.
  • the state transition method provided in the embodiment of the present application, when the user equipment resides in the first type of cell, if the user equipment needs to access the first type of cell, return to the idle state by deleting the saved context. State, and then initiate a connection establishment request.
  • FIG. 6C is a flowchart of a state transition method according to an exemplary embodiment. As shown in FIG. 6C, the state transition method is applied to the UE 120 in the mobile communication system shown in FIG. 1, and includes the following steps:
  • step 606 when the user equipment is in an inactive state, detecting whether the user equipment meets the first predetermined condition, the first predetermined condition includes: the user equipment camps on the second type of cell.
  • the second type of cell refers to a pre-configured cell that is prohibited from operating in an inactive state.
  • Pre-configuration herein refers to configuration by the access network device to send signaling in advance.
  • the base station configures, in advance, at least one item of the cell list, the area ID (or the RAN notification area ID), the frequency, and the PLMN, which are prohibited from working in the inactive state, and the user equipment may reside in the cell list.
  • the area ID or the RAN notification area ID
  • the frequency or the PLMN, which are prohibited from working in the inactive state
  • the user equipment may reside in the cell list.
  • camp on a cell belonging to the area ID or camp on a cell of a specified frequency or PLMN.
  • the user equipment is small in the second category
  • the berthing priority of the zone is lower than the berthing priority of the cell (ie, the normal cell) that is allowed to operate in the inactive state, but the user equipment may still select the cell of the second type when selecting the camping cell.
  • step 607 when the user equipment meets the first predetermined condition, the user equipment is converted from the inactive state to the idle state.
  • the user equipment deletes the saved context in the inactive state and enters the idle state.
  • the user equipment after the user equipment transitions from the inactive state to the idle state, if the service decision needs to establish an RRC connection, the user equipment sends a second connection establishment request to the second type of cell, and the second connection establishment request is used to request access.
  • the second type of cell is used to request access.
  • steps 606 to 607 in this embodiment have no direct timing relationship with the steps in the previous embodiment, and the two can be independently executed.
  • the state transition method provided in the embodiment of the present application can save the computing resources of the user equipment by switching to the idle state when the user equipment resides in the cell that is prohibited from working in the inactive state.
  • the user equipment when the user equipment meets any other first predetermined condition as follows in the inactive state, the user equipment transitions from the inactive state to the idle state.
  • the first predetermined condition includes: the SIM card of the user equipment is not inserted.
  • the SIM card is not inserted, including: the original state is not inserted, or is pulled out after the SIM card is inserted.
  • the first predetermined condition includes: the user equipment does not search for any campable cell.
  • the first predetermined condition includes: the user equipment does not search for the duration of any campable cell for a first predetermined duration.
  • the first predetermined duration is pre-configured on the network side or customized by the user equipment.
  • the first predetermined condition includes: after the user equipment sends the third connection establishment request, receiving the reject access message.
  • the third connection establishment request is used to request to access the user equipment to the camped cell.
  • the user equipment sends a third connection establishment request to the base station, and the base station sends a reject connection establishment message to the user equipment, and the user equipment changes from the inactive state to the idle state according to the reject establishment connection message.
  • the first predetermined condition includes: after the user equipment sends the third connection establishment request, receiving the reject access message carrying the sixth indication, where the third connection establishment request is used to request to access the user equipment to the resident
  • the sixth indicator is used to indicate that the user equipment is converted to an idle state.
  • the base station sends a reject access message to the user equipment, where the reject access message carries an indication that the idle state is entered, and the user equipment converts according to the denied access message. It is idle.
  • the first predetermined condition includes: after the user equipment sends the third connection establishment request, receiving the reject access message that does not carry the seventh indication, where the third connection establishment request is used to access the user equipment The cell, the seventh indication is used to indicate that the user equipment remains in an inactive state.
  • the user equipment sends a third connection setup request to the base station, and the base station sends a reject access message indicating that the user equipment remains inactive to the user equipment.
  • the base station does not explicitly indicate that the user equipment remains inactive.
  • the message is converted to an idle state.
  • the first predetermined condition includes: after the user equipment sends the RAN side location area update request, receiving the reject update message, where the RAN side location area update request is used to request to update the location area of the RAN side of the user equipment. Since the base station rejects the user equipment update location area, the user equipment transitions to the idle state according to the reject update message.
  • the first predetermined condition includes: the number of consecutive failures of the update after the user equipment sends the RAN side location area update request reaches a predetermined number of times.
  • the user equipment when the user equipment sends a RAN side location area update request to send a failure or does not receive a message returned by the base station, the user equipment cannot complete the update.
  • the first predetermined condition includes: after the user equipment accesses the network other than the target network in the cell reselection process, re-accessing the target network and the context saved by the user equipment in the inactive state is lost, where
  • the target network is a network that supports user equipment to work in an inactive state.
  • Network
  • the target network is a 5G network.
  • the wireless network A is a network that is prohibited from operating in an inactive state
  • the wireless network B is a network that is allowed to operate in an inactive state.
  • the first predetermined condition includes: the user equipment accesses the first predetermined network in a cell reselection process, where the first predetermined network refers to a pre-configured context that prohibits the user equipment from remaining in an inactive state.
  • the internet The internet.
  • the first predetermined condition includes: the duration of the user equipment remaining in the inactive state reaches a second predetermined duration, wherein the second predetermined duration refers to a pre-configured maximum duration that allows the user equipment to remain in the inactive state.
  • the second predetermined duration is a system pre-configuration or a duration agreed by the user equipment and the base station.
  • FIG. 7A is a flowchart of a state maintaining method according to an exemplary embodiment. As shown in FIG. 7A, the state maintaining method is applied to the UE 120 of the mobile communication system shown in FIG. 1, and includes the following steps:
  • step 701 when the user equipment is in an inactive state, it is detected whether the user equipment satisfies a second predetermined condition, and the second predetermined condition includes that the user equipment resides in the first type of cell.
  • the first type of cell refers to a cell that provides restricted services.
  • step 702 when the user equipment meets the second predetermined condition, the user equipment remains in an inactive state.
  • the access layer of the user equipment remains in an inactive state.
  • the user equipment can be used in the following two manners:
  • the user equipment sends a first connection recovery request, where the first connection recovery request is used to resume accessing the first type of cell according to the context saved in the inactive state.
  • the user equipment deletes the context saved in the inactive state, and the user equipment is non-excited.
  • the active state is switched to the idle state, and the user equipment sends a first connection establishment request, and the first connection establishment request is used to request access to the first type of cell.
  • the user equipment sends the first connection recovery request or the first connection establishment request is determined by the access layer, or is determined by the access layer of the user equipment to the access layer.
  • the user equipment does not send the RAN side location area update request when the first type of cell camps.
  • the base station cannot know the location area where the user equipment resides for a period of time until the user equipment accesses the cell providing the normal service, and then sends the RAN. Side location area update request.
  • the user equipment sends a RAN side location area update request when accessing the first type of cell for the first time.
  • the difference from the former case is that the user equipment sends the RAN side location area update request only when accessing the first type of cell for the first time. Although the first type of cell does not provide data transmission and reception services, the base station side can learn the user equipment station. The location area left.
  • the user equipment when the user equipment accesses the third type of cell after camping on the first type of cell, the user equipment sends a RAN side location area update request, and the third type of cell refers to a suitable cell that provides normal service.
  • the third type of cell is a cell capable of normal data transmission and reception.
  • the state transition method maintains the inactive state when the user equipment resides in the first type of cell, so that the user equipment does not need to perform the state when accessing the third type of cell again.
  • Switching, and being able to restore the RRC connection again according to the saved context avoids the state ping-pong problem caused when the user equipment moves between the first type of cell and the third type of cell.
  • FIG. 7B is a flowchart of a state maintaining method according to an exemplary embodiment. As shown in FIG. 7B, the state maintaining method is applied to the UE 120 in the implementation environment shown in FIG. 1, and includes the following steps:
  • step 703 when the user equipment is in an inactive state, it is detected whether the user equipment meets the second predetermined condition, and the second predetermined condition includes: the user equipment camps on the second type of cell.
  • the second type of cell refers to a pre-configured cell that prohibits performing predetermined services in an inactive state.
  • step 704 when the user equipment is in an inactive state and the second predetermined condition is met, the user equipment remains in an inactive state.
  • the user equipment does not perform data transceiving services when the inactive state is maintained.
  • the user equipment After the user equipment resides in the second type of cell, if the user equipment is required by the service (for example, data needs to be sent), the user equipment sends a second connection recovery request, and the second connection recovery request is used to request the user equipment according to the user equipment.
  • the context in the inactive state accesses the second type of cell.
  • the user equipment does not send the RAN side location area update request when camping on the second type of cell.
  • the base station cannot know the location area where the user equipment resides for a period of time until the user equipment accesses the cell that is allowed to work in the inactive state.
  • the RAN side location area update request is then sent.
  • the user equipment sends a RAN side location area update request when accessing the second type of cell for the first time.
  • the user equipment sends a RAN side location area update request when accessing the fourth type of cell.
  • the fourth type of cell refers to a pre-configured cell that allows to work in an inactive state.
  • the user equipment sends a RAN side location area update request when accessing the fourth type of cell.
  • the user equipment sends the RAN side location area update request and receives the refusal update message, the user equipment sends the RAN side location area update request when accessing the fourth type of cell.
  • the user equipment sends the RAN side location area when accessing the fourth type of cell.
  • the domain update request, the eighth indication is used to indicate that the user equipment prohibits data transmission and reception in the inactive state, and the acceptance message is a response that is received by the user equipment after sending the RAN side location area update request.
  • the user equipment does not send the RAN side location area update request when camping on the second type of cell, and the user equipment sends the RAN side location area update request when accessing the fourth type of cell.
  • steps 703 to 704 in this embodiment have no direct timing relationship with the steps in the previous embodiment, and the two can be independently executed.
  • the state maintaining method provided in the embodiment of the present application can prevent the user equipment from restoring the RRC connection through the saved upper and lower bits by saving the inactive state when the user equipment resides in the second type of cell, thereby saving the network side. Signaling resources.
  • the user equipment when the user equipment satisfies at least one other second predetermined condition in the inactive state, the user equipment remains in an inactive state.
  • the second predetermined condition includes: after the user equipment accessing the first PLMN is rejected, the user equipment first camps on the first type of cell; the user equipment successfully accesses the second PLMN according to the indication of the non-access stratum Residing in the third type of cell.
  • the first type of cell refers to a cell that provides limited service
  • the third type of cell refers to a cell that provides normal service.
  • the second predetermined condition includes: the user equipment does not search for any campable cell.
  • the user equipment is stored in an inactive state, which may be referred to as any cell selection state in an inactive state.
  • the user equipment does not search for any campable cell, it can also switch from the inactive state to the idle state, and any cell access mode in the idle state.
  • the second predetermined condition includes: after the user equipment sends the second connection establishment request in the inactive state, receiving the reject access message carrying the ninth indication; wherein the second connection establishment request is used to request the user The device accesses the camped cell, and the ninth indication is used to indicate that the user equipment remains in an inactive state.
  • the base station After the user equipment sends a second connection establishment request to the base station, the base station sends a deny access message to the user equipment that explicitly indicates that the user equipment remains in an inactive state, and the user equipment remains in an inactive state according to the denial of access message.
  • the second predetermined condition includes: after the user equipment sends the RAN side location area update request, the receiving message is received, the accepting message carries a tenth indication, and the tenth indication is used to indicate that the user equipment prohibits executing data in the inactive state.
  • Transceiver service wherein the accept message is a response received by the user equipment after transmitting the RAN side location area update request.
  • the second predetermined condition includes: after receiving the RAN side location area update request, the user equipment receives the accept message, and successfully performs the RAN side location area update according to the accept message; wherein the accept message is that the user equipment is transmitting the RAN side location area.
  • the response received after the request was updated.
  • the second predetermined condition includes: after the user equipment sends the RAN side location area update request that carries the predetermined identifier, the user equipment receives the accept message including the reject indication, and successfully performs the RAN side location area update according to the accept message;
  • the predetermined identifier is used to indicate that the user equipment requests to enter the connected state
  • the reject indication is used to indicate that the user equipment is prohibited from entering the connected state
  • the accept message is a response that the user equipment receives after transmitting the RAN side location area update request.
  • the second predetermined condition includes: after the user equipment sends the RAN side location area update request, the number of consecutive times of the update failure reaches the first predetermined number of times, the user equipment waits for the third predetermined duration, and then resends the RAN side location area update request and Recount the number of times.
  • the third predetermined duration is a duration pre-configured by the system or agreed by the user equipment and the base station.
  • the second predetermined condition includes: when the user equipment sends the RAN side location area update request, the number of consecutive failures of the update fails to reach the second predetermined number of times, the user equipment stops updating and waits for the user equipment to access the camped cell to resend The RAN side location area update request or initiate a third connection recovery request; wherein the third connection recovery request is used to request to resume access to the resident cell according to the context saved in the inactive state.
  • the second predetermined condition includes: sending the RAN side location area update at the user equipment, please When the consecutive number of consecutive update failures reaches the third predetermined number of times, the user equipment stops updating and waits for the user equipment to access the new cell to re-initiate the RAN side location area update request.
  • the second predetermined condition includes: the user equipment accesses other networks than the target network during the cell reselection process; wherein the target network is a network that supports the user equipment to work in an inactive state.
  • the second predetermined condition includes: the user equipment accesses other networks than the target network during the cell reselection process, and the duration of the access to the other network is within the fourth predetermined duration.
  • the second predetermined condition includes: the user equipment accesses the second predetermined network in the cell reselection process; wherein the second predetermined network refers to a pre-configured network that allows the user equipment to remain in the inactive state. And the second predetermined network belongs to other networks than the target network.
  • the second predetermined condition includes that the duration of the user equipment remaining in an inactive state is within a fifth predetermined duration; wherein the fifth predetermined duration is a pre-configured maximum duration that allows the user equipment to remain inactive.
  • the base station updates the stay duration information of the user equipment to remain inactive by sending a response message of the RAN-side location area update request, when the user equipment is inactive. After the status of the stay time is updated, the timer is re-timed.
  • the duration of the user equipment in the inactive state is invalidated.
  • the second predetermined condition includes: the user equipment initiates connection recovery failure. That is, after the user equipment sends an RRC connection recovery request, the user equipment does not receive a response or receives a rejection response.
  • the second predetermined condition includes: the user equipment fails to send data in the inactive state or fails to receive data.
  • the state maintaining method provided in the embodiment of the present application does not need to be converted when the user equipment performs the small data packet service transmission and reception by keeping the user equipment in an inactive state. It is connected, which saves signaling resources.
  • FIG. 8 is a flowchart of a state transition method according to an exemplary embodiment. As shown in FIG. 8, the state transition method is applied to the UE 120 of the mobile communication system shown in FIG. 1, and includes the following steps.
  • step 801 when the user equipment is in the inactive state, detecting whether the user equipment meets the third predetermined condition, the third predetermined condition includes: the user equipment sends the RAN side location area update request carrying the predetermined identifier, and receives the accept message.
  • the RAN side location area update is successfully performed according to the received message.
  • the RAN side location area update request carries a predetermined identifier, and the predetermined identifier is used to request to enter a connected state. That is, when the user equipment is in the inactive state, if the service requirement needs to be switched back to the connected state, the user equipment carries the predetermined identifier in the RAN side location area update request in the process of sending the RAN side location area update request to the base station, The predetermined identifier is used to indicate that the user equipment requests to enter the connected state.
  • the base station may feed back an accept message, which not only indicates that the location area of the user equipment is accepted, but the accept message is used to indicate that the user equipment is allowed to enter the connected state.
  • the accept message carries an eleventh indication, where the eleventh indication is used to indicate that the user equipment is allowed to enter the connected state; optionally, the accept message does not carry any indication, and the accept message is used to implicitly indicate the allowed user equipment.
  • the connection state in other words, if the base station does not carry the indication in the accept message, it indicates that the user equipment is allowed to enter the connected state; if the base station carries the reject indication in the accept message, it indicates that the user equipment is not allowed to enter the connected state.
  • the user equipment After receiving the accept message, the user equipment successfully performs the RAN side location area update according to the received message.
  • step 802 when the user equipment meets the third predetermined condition, the user equipment is converted from the inactive state to the connected state.
  • the user equipment when the user equipment accepts the message indicating that the connection is allowed to be connected, the user equipment is removed from the user equipment.
  • the active state is converted to a connected state.
  • the RAN-side location area update request sent by the user equipment to the access network device or the completion message corresponding to the RAN-side location area update request further carries a NAS layer request, and the NAS message is used by the NAS message.
  • the NAS layer location area update or the EPC side location area update is triggered.
  • the completion message is sent by the user equipment after successfully performing the RAN side location area update.
  • the piggybacking mechanism of the NAS message is triggered by the non-access stratum of the user equipment after the user equipment enters the new location update area, that is, the user equipment is sent to the access network device.
  • the following steps are also included:
  • the non-access stratum of the user equipment sends a NAS layer message to the access layer, or the non-access stratum of the user equipment indicates that the access layer establishes an RRC connection, or the non-access stratum of the user equipment indicates that the access layer recovers the RRC. connection.
  • the state maintaining method by carrying the predetermined identifier in the RAN side location area update request sent by the user equipment, explicitly indicates that the connection is restored or does not include the default recovery in the accept message sent by the base station.
  • the user equipment is switched from the inactive state to the connected state, so that the user equipment can perform data transmission and reception in the connected state.
  • FIG. 9 is a block diagram of a state transition apparatus according to an exemplary embodiment. As shown in FIG. 9, the state transition apparatus is applied to a UE 120 in the mobile communication system shown in FIG.
  • the state transition device includes, but is not limited to, a processing module 910.
  • the processing module 910 is configured to: when the user equipment is in an inactive state and meets the first predetermined condition, converting the user equipment from the inactive state to the idle state;
  • the processing module 910 is configured to maintain an inactive state when the user equipment is in an inactive state and meets a second predetermined condition
  • the processing module 910 is configured to convert the user equipment from the inactive state to the connected state when the user equipment is in the inactive state and meets the third predetermined condition;
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives the first indication of the non-access stratum, and the first indication is used to indicate that the state of the non-access stratum is changed from the registration state to the non-registration state.
  • the first predetermined condition includes:
  • the access layer of the user equipment After the access layer of the user equipment reports the status of the access layer to the inactive state, the access layer of the user equipment receives the second indication of the non-access stratum, and the second indication is used to indicate that the user equipment establishes the RRC connection. .
  • the first predetermined condition includes:
  • the access layer of the user equipment receives the third indication of the non-access stratum, and the third indication is used to indicate that the non-access stratum state is changed from the connected state to the idle state;
  • the inactive state in the access layer state corresponds to the connected state in the non-access stratum state.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives a fourth indication of the non-access stratum, and the fourth indication is used to indicate that the non-access stratum state transitions from an idle state with an inactive state indication to an idle state with no inactive state indication. ;
  • the inactive state in the access layer state corresponds to the idle state in the non-access stratum state with the inactive state indication.
  • the first predetermined condition includes:
  • the access layer of the user equipment receives a fifth indication of the non-access stratum, and the fifth indication is used to indicate that the user equipment is converted to an idle state.
  • the first predetermined condition includes:
  • the user equipment is rejected when accessing the new PLMN.
  • the first predetermined condition includes:
  • the SIM card of the user device is not inserted.
  • the first predetermined condition includes:
  • the decision result of the user equipment is that the first connection establishment request needs to be sent to the first type of cell;
  • the first type of cell refers to a cell used to provide a restricted service, and the first connection establishment request is used to request access to the first type of cell.
  • the first predetermined condition includes:
  • the user equipment does not search for any campable cell
  • the user equipment does not search for the duration of any campable cell for a first predetermined duration.
  • the first predetermined condition includes:
  • User equipment resides in a second type of cell
  • the second type of cell refers to a pre-configured cell that is prohibited from working in an inactive state.
  • the device further includes: a sending module 920.
  • the sending module 920 is configured to send, by the user equipment, a second connection establishment request, where the second connection establishment request is used to request access to the second type of cell.
  • the first predetermined condition includes:
  • the user equipment After receiving the third connection establishment request, the user equipment receives the reject access message
  • the third connection establishment request is used to request to access the user equipment to the camped cell.
  • the first predetermined condition includes:
  • the user equipment After receiving the third connection establishment request, the user equipment receives the reject access message carrying the sixth indication, where the third connection establishment request is used to request the user equipment to access the resident cell, and the sixth indication is used to indicate the user equipment. Convert to idle state;
  • the user equipment After receiving the third connection establishment request, the user equipment receives the reject access message that does not carry the seventh indication, where the third connection establishment request is used to request the user equipment to access the resident cell, and the seventh indication is used to indicate the user.
  • the device remains in an inactive state.
  • the first predetermined condition includes:
  • the user equipment After receiving the RAN side location area update request, the user equipment receives the reject update message;
  • the RAN side location area update request is used to request to update the location area of the RAN side of the user equipment.
  • the first predetermined condition includes:
  • the number of consecutive failures of the update after the user equipment initiates the RAN side location area update request reaches a predetermined number of times
  • the RAN side location area update request is used to request to update the location area of the RAN side of the user equipment.
  • the first predetermined condition includes:
  • the user equipment After the user equipment accesses the network other than the target network in the cell reselection process, the user equipment re-accesses the target network and the context saved by the user equipment in the inactive state is lost;
  • the target network is a network that supports the user equipment to work in an inactive state.
  • the first predetermined condition includes:
  • the user equipment accesses the first predetermined network in the cell reselection process
  • the first predetermined network refers to a pre-configured network that prohibits the user equipment from retaining the context in the inactive state.
  • the first predetermined condition includes:
  • the duration of the user equipment remaining in an inactive state reaches a second predetermined duration
  • the second predetermined duration refers to a pre-configured maximum duration that allows the user equipment to remain in an inactive state.
  • the second predetermined condition includes:
  • the user equipment resides in the first type of cell
  • the first type of cell refers to a cell that provides limited services.
  • the sending module 920 is configured to send, by the user equipment, a first connection recovery request, where the first connection recovery request is used to resume accessing the first type of cell according to the context saved in the inactive state;
  • the sending module 920 is configured to: the user equipment deletes the context saved in the inactive state, the user equipment switches from the inactive state to the idle state, the user equipment sends a first connection establishment request, and the first connection establishment request is used to request the access A type of community.
  • the sending module 920 is configured to not send the RAN side location area update request when the first type of cell camps;
  • the sending module 920 is configured to send a RAN side location area update request when accessing the first type of cell for the first time.
  • the sending module 920 is further configured to: when the user equipment accesses the third type of cell, send a RAN side location area update request, where the third type of cell refers to a cell that provides normal service.
  • the second predetermined condition includes:
  • the user equipment After the user equipment accessing the first PLMN is rejected, the user equipment first camps on the first type of cell; the user equipment successfully accesses the second PLMN according to the indication of the non-access stratum and camps on the third type of cell;
  • the first type of cell refers to a cell that provides limited service
  • the third type of cell refers to provides a positive A frequently served community.
  • the second predetermined condition includes:
  • the user equipment did not find any campable cells.
  • the second predetermined condition includes:
  • User equipment resides in a second type of cell
  • the second type of cell refers to a pre-configured cell that prohibits performing a predetermined service in an inactive state.
  • the sending module 920 is configured to not send the RAN side location area update request when camping on the second type of cell;
  • the sending module 920 is further configured to send a RAN side location area update request when accessing the second type of cell for the first time;
  • the sending module 920 is further configured to: if the RAN side location area of the user equipment changes, send a RAN side location area update request when accessing the fourth type of cell;
  • the sending module 920 is further configured to: if the user equipment is converted to the idle state, send the RAN side location area update request when accessing the fourth type of cell;
  • the sending module 920 is further configured to: if the RAN side location area update request is sent, after receiving the RAN side update request, send the RAN side location area update request when accessing the fourth type of cell;
  • the sending module 920 is further configured to: if the receiving the RAN side location area update request, after receiving the accept message carrying the eighth indication, send the RAN side location area update request when accessing the fourth type of cell; Instructing the user equipment to prohibit data transmission and reception in an inactive state The service, the accept message is a response received by the user equipment after sending the RAN side location area update request;
  • the sending module 920 is further configured, when the user equipment camps on the second type of cell, does not send the RAN side location area update request, and sends the RAN side location area update request when accessing the fourth type of cell;
  • the fourth type of cell refers to a pre-configured cell that allows to work in an inactive state.
  • processing module 910 is further configured to: when the user equipment remains in an inactive state, does not perform data transceiving services.
  • the sending module 920 is configured to send, by the user equipment, a second connection recovery request, where the second connection recovery request is used to request to resume accessing the second type of cell according to the context of the user equipment in the inactive state.
  • the second predetermined condition includes:
  • the user equipment After receiving the second connection establishment request, the user equipment receives the reject access message carrying the ninth indication;
  • the second connection establishment request is used to request to access the user equipment to the camped cell
  • the ninth indication is used to indicate that the user equipment remains in the inactive state.
  • the second predetermined condition includes:
  • the user equipment After receiving the RAN side location area update request, the user equipment receives the accept message, and the accepting message carries a tenth indication, where the tenth indication is used to instruct the user equipment to prohibit performing data transceiving service in the inactive state;
  • the accept message is a response that is received by the user equipment after sending the RAN side location area update request.
  • the second predetermined condition includes:
  • the user equipment After receiving the RAN side location area update request, the user equipment receives the accept message; and successfully performs the RAN side location area update according to the accept message;
  • the receiving message is a response that is received by the user equipment after sending the RAN side location area update request, and the receiving message does not carry the predetermined identifier, and the predetermined identifier is used to request to enter the connected state.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request that carries the predetermined identifier, the user equipment receives the accept message including the reject indication, and successfully performs the RAN side location area update according to the accept message;
  • the predetermined identifier is used to indicate that the user equipment requests to enter the connected state
  • the reject indication is used to indicate that the user equipment is prohibited from entering the connected state
  • the accept message is a response that is received by the user equipment after sending the RAN side location area update request.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request and the number of consecutive failures of the update fails to reach the first predetermined number of times, the user equipment waits for the third predetermined duration and then resends the RAN side location area update request and re-counts the number of times.
  • the second predetermined condition includes:
  • the user equipment After the user equipment sends the RAN side location area update request and the number of consecutive failures of the update fails to reach the second predetermined number of times, the user equipment stops updating and waits for the user equipment to access the camped cell to resend the RAN side location area update request or initiates the third. Connection recovery request;
  • the third connection recovery request is used to request to restore the access resident cell according to the context saved in the inactive state.
  • the second predetermined condition includes:
  • the user equipment stops updating and waits for the user equipment to access the new cell to re-initiate the RAN side location area update request.
  • the second predetermined condition includes:
  • the user equipment accesses other networks than the target network during the cell reselection process
  • the target network is a network that supports the user equipment to work in an inactive state.
  • the second predetermined condition includes:
  • the user equipment accesses other networks except the target network during the cell reselection process, and the duration of access to other networks is within the fourth predetermined duration;
  • the target network is a network that supports the user equipment to work in an inactive state.
  • the second predetermined condition includes:
  • the user equipment accesses the second predetermined network in the cell reselection process
  • the second predetermined network refers to a pre-configured network that allows the context of the user equipment to remain in an inactive state, and the second predetermined network belongs to other networks than the target network;
  • the target network is a network that supports the user equipment to work in an inactive state.
  • the second predetermined condition includes:
  • the duration of the user equipment remaining in an inactive state is within a fifth predetermined duration
  • the fifth predetermined duration refers to a pre-configured maximum duration that allows the user equipment to remain in an inactive state.
  • the second predetermined condition includes:
  • the second predetermined condition includes:
  • the user equipment failed to send data in the inactive state or failed to receive data.
  • the third predetermined condition includes:
  • the user equipment sends a RAN side location area update request, and receives an accept message
  • the user equipment successfully performs the RAN side location area update according to the accept message
  • the RAN side location area update request carries a predetermined identifier, and the predetermined identifier is used to request to enter a connection state; the accept message is used to indicate that the location area of the user equipment is updated and the user equipment is allowed to enter the connected state.
  • the RAN side location area update request or the RAN side location area update request also carries a NAS layer request;
  • the processing module 910 is further configured to: when the user equipment sends the RAN side location area update request, send the NAS layer message to the access layer through the non-access stratum of the user equipment, or the non-access stratum of the user equipment, before receiving the accept message Instructing the access layer to establish an RRC connection, or the non-access stratum of the user equipment instructs the access layer to resume the RRC connection.
  • the accepting message carries an eleventh indication, where the eleventh indication is used to indicate that the user equipment is allowed to enter the connected state; or the accepting message does not carry any indication, and the accepting message is used to implicitly indicate that the user equipment is allowed to enter the connected state. .
  • the state transition device provided in the embodiment of the present application can enable the UE in the inactive state to send and receive small data packet services by adding an inactive state to the user equipment, without switching to the connected state. It is solved that the UE needs to switch back and forth between the RRC connected state and the RRC idle state in the 4G, and the UE needs to switch back and forth between the RRC connected state and the RRC idle state, resulting in waste of signaling resources, and the UE is implemented in the inactive state.
  • the small data packet service is sent and received to save the effect of signaling resources.
  • An exemplary embodiment of the present application provides a user equipment, which can implement a state transition method provided by an embodiment of the present application.
  • the user device includes: a processor, and a memory configured to store processor executable instructions;
  • processor is configured to:
  • the inactive state is an intermediate state between the connected state and the idle state.
  • An exemplary embodiment of the present application provides a user equipment, which can implement a state maintaining method provided by an embodiment of the present application.
  • the user equipment includes: a processor configured to be a storage processor executable Memory of line instructions;
  • processor is configured to:
  • the user equipment When the user equipment is in an inactive state and meets the second predetermined condition, the user equipment remains in an inactive state;
  • the inactive state is an intermediate state between the connected state and the idle state.
  • An exemplary embodiment of the present application provides a user equipment, which can implement a state transition method provided by an embodiment of the present application.
  • the user device includes: a processor, and a memory configured to store processor executable instructions;
  • processor is configured to:
  • the inactive state is an intermediate state between the connected state and the idle state.
  • FIG. 10 is a block diagram of a user equipment, according to an exemplary embodiment.
  • user device 1000 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • user equipment 1000 may include one or more of the following components: processing component 1002, memory 1004, power component 1006, multimedia component 1008, audio component 1010, input/output (I/O) interface 1012, sensor component 1014, And a communication component 1016.
  • Processing component 1002 typically controls the overall operations of user device 1000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 1002 can include one or more processors 1018 to execute instructions to perform all or part of the steps of the above described methods.
  • processing component 1002 can include one or more modules to facilitate interaction between component 1002 and other components.
  • processing component 1002 can include a multimedia module to facilitate interaction between multimedia component 1008 and processing component 1002.
  • the memory 1004 is configured to store various types of data to support the user device 1000 operating. Examples of such data include instructions for any application or method operating on user device 1000, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 1004 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable read only memory
  • PROM programmable read only memory
  • ROM read only memory
  • magnetic memory flash memory
  • flash memory magnetic or optical disk.
  • Power component 1006 provides power to various components of user device 1000.
  • Power component 1006 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for user equipment 1000.
  • the multimedia component 1008 includes a screen that provides an output interface between the user device 1000 and the user.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can sense not only the boundaries of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
  • the multimedia component 1008 includes a front camera and/or a rear camera. When the user device 1000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 1010 is configured to output and/or input an audio signal.
  • the audio component 1010 includes a microphone (MIC) that is configured to receive an external audio signal when the user device 1000 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 1004 or transmitted via communication component 1016.
  • the audio component 1010 further includes a speaker configured to output an audio signal.
  • the I/O interface 1012 provides an interface between the processing component 1002 and the peripheral interface module,
  • the enclosure module can be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
  • Sensor assembly 1014 includes one or more sensors configured to provide various aspects of state assessment for user device 1000.
  • the sensor component 1014 can detect an open/closed state of the user device 1000, a relative positioning of the components, such as a display and a keypad of the user device 1000, and the sensor component 1014 can also detect a component of the user device 1000 or the user device 1000. The location changes, the presence or absence of contact of the user with the user device 1000, the orientation or acceleration/deceleration of the user device 1000, and the temperature change of the user device 1000.
  • Sensor assembly 1014 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 1014 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 1016 is configured to facilitate wired or wireless communication between user device 1000 and other devices.
  • User equipment 1000 can access a wireless network based on communication standards, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • communication component 1016 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • communication component 1016 also includes a near field communication (NFC) module to facilitate short range communication.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • user equipment 1000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), A program gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation configured to perform the state transition method or state retention method provided by the various method embodiments described above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA program gate array
  • controller microcontroller, microprocessor or other electronic component implementation configured to perform the state transition method or state retention method provided by the various method embodiments described above.
  • a non-transitory computer readable memory including instructions is also provided Storage medium, such as memory 1004 including instructions, may be executed by processor 1018 of user device 1000 to perform the state transition method or state retention method described above.
  • the non-transitory computer readable storage medium may be a ROM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, or the like.
  • the technical solution provided by the embodiment of the present application by adding an inactive state to the user equipment, enables the UE in the inactive state to perform small-data packet service transmission and reception without switching to the connected state, thereby solving the UE even in the 4G.
  • the small-packet service is sent and received, and the UE also needs to switch back and forth between the RRC connected state and the RRC idle state, resulting in waste of signaling resources, and the UE transmits and receives small data packet services in an inactive state, saving the letter.
  • the effect of the resources by adding an inactive state to the user equipment, enables the UE in the inactive state to perform small-data packet service transmission and reception without switching to the connected state, thereby solving the UE even in the 4G.
  • the small-packet service is sent and received, and the UE also needs to switch back and forth between the RRC connected state and the RRC idle state, resulting in waste of signaling resources, and the UE transmits and receives small data packet services in an inactive state,

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Abstract

本申请实施例揭示了一种状态转换方法、状态保持方法、装置及用户设备，属于通信技术领域。所述方法包括：当用户设备处于非激活态且满足第一预定条件时，将所述用户设备从所述非激活态转换为空闲态；当用户设备处于非激活态且满足第二预定条件时，所述用户设备保持所述非激活态；当用户设备处于非激活态且满足第三预定条件时，将所述用户设备从所述非激活态转换为连接态；其中，所述非激活态是位于连接态和所述空闲态之间的中间状态。

Description

状态转换方法、状态保持方法、装置及用户设备
相关申请和交叉引用
本申请基于申请号为201710074385.X、申请日为2017年02月10日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及通信技术领域，特别涉及一种状态转换方法、状态保持方法及装置。
背景技术
在4G(the 4th Generation mobile communication technology，第四代移动通信技术)中，UE(User Equipment，用户设备)的RRC状态包括：连接态和空闲态。
连接态是指UE和基站之间建立有RRC(Radio Resource Control，无线资源控制协议)连接的一种状态，UE在连接态下能够与基站收发数据；空闲态是指UE和基站之间未建立有RRC连接，UE在空闲态下不能向基站发送数据，但可以接收到基站发送的系统消息和寻呼消息。
发明内容
为了解决在4G中即使UE进行小数据包业务的收发，也需要在连接态与空闲态之间来回切换，导致信令资源浪费的问题。在5G中除了连接态和空闲态，还为UE引入一种介于连接态和空闲态之间的中间状态，称作非激活态，非激活态下的UE能够进行小数据包业务的收发，从而节省信令资源， 对5G中的超高可靠性与超低时延业务(Ultra Reliable & Low Latency Communication，URLLC)的用户设备有较好的性能提升。对于三种状态之间进行切换的场景，本申请实施例提供一种状态转换方法、状态保持方法及装置。所述技术方案如下：
根据本申请实施例的第一方面，提供一种状态转换方法，所述方法包括：
当用户设备处于非激活态且满足第一预定条件时，将所述用户设备从所述非激活态转换为空闲态；
其中，所述非激活态是位于连接态和所述空闲态之间的中间状态。
可选地，所述第一预定条件，包括：
所述用户设备的接入层接收到非接入层的第一指示，所述第一指示用于指示所述非接入层的状态从注册状态转换为非注册状态。
可选地，所述第一预定条件，包括：
所述用户设备的接入层向非接入层上报所述接入层状态为所述非激活态后，所述用户设备的所述接入层接收到所述非接入层的第二指示，所述第二指示用于指示所述用户设备建立RRC连接。
可选地，所述第一预定条件，包括：
所述用户设备的接入层接收到非接入层的第三指示，所述第三指示用于指示所述非接入层状态从连接态转换为空闲态；
其中，所述接入层状态中的所述非激活态与所述非接入层状态中的所述连接态对应。
可选地，所述第一预定条件，包括：
所述用户设备的接入层接收到所述非接入层的第四指示，所述第四指示用于指示所述非接入层状态从带有非激活态指示的空闲态转换为不带有非激活态指示的空闲态；
其中，所述接入层状态中的所述非激活态与所述非接入层状态中的带有非激活态指示的空闲态对应。
可选地，所述第一预定条件，包括：
所述用户设备的接入层接收到非接入层的第五指示，所述第五指示用于指示所述用户设备转换为所述空闲态。
可选地，所述第一预定条件，包括：
所述用户设备在接入新的PLMN时被拒绝。
可选地，所述第一预定条件，包括：
所述用户设备的SIM卡未插入。
可选地，所述第一预定条件，包括：
在所述用户设备驻留在第一类小区中时，所述用户设备的决策结果为需要向所述第一类小区发送第一连接建立请求；
其中，所述第一类小区是指用于提供限制服务的小区，所述第一连接建立请求用于请求接入所述第一类小区。
可选地，所述第一预定条件包括：
所述用户设备未搜索到任何可驻留的小区；
或，
所述用户设备未搜索到任何可驻留的小区的持续时长达到第一预定时长。
可选地，所述第一预定条件，包括：
所述用户设备驻留在第二类小区中；
其中，所述第二类小区是指预配置的禁止在所述非激活态下工作的小区。
可选地，所述将所述用户设备从所述非激活态转换为空闲态之后，还包括：
所述用户设备发送第二连接建立请求，所述第二连接建立请求用于请求接入所述第二类小区。
可选地，所述第一预定条件，包括：
所述用户设备发送第三连接建立请求后，接收到拒绝接入消息；
其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区。
可选地，所述第一预定条件，包括：
所述用户设备发送第三连接建立请求后，接收到携带有第六指示的拒绝接入消息；其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区，所述第六指示用于指示所述用户设备转换为所述空闲态；
或，
所述用户设备发送第三连接建立请求后，接收到未携带有第七指示的拒绝接入消息；其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区，所述第七指示用于指示所述用户设备保持在所述非激活态。
可选地，所述第一预定条件，包括：
所述用户设备发送RAN侧位置区域更新请求后，接收到拒绝更新消息；
其中，所述RAN侧位置区域更新请求用于请求将所述用户设备的RAN侧的位置区域进行更新。
可选地，所述第一预定条件，包括：
所述用户设备发起RAN侧位置区域更新请求后更新失败的连续次数达到预定次数；
其中，所述RAN侧位置区域更新请求用于请求将所述用户设备的RAN侧的所述位置区域进行更新。
可选地，所述第一预定条件，包括：
所述用户设备在小区重选过程中接入到除目标网络之外的其它网络后，重新接入所述目标网络且所述用户设备在所述非激活态下保存的上下 文丢失；
其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
可选地，所述第一预定条件，包括：
所述用户设备在小区重选过程中接入第一预定网络；
其中，所述第一预定网络是指预配置的禁止所述用户设备保留在所述非激活态下的上下文的网络。
可选地，所述第一预定条件，包括：
所述用户设备保持所述非激活态的持续时长达到第二预定时长；
其中，所述第二预定时长是指预配置的允许所述用户设备保持在所述非激活态的最大时长。
根据本申请实施例的第二方面，提供一种状态保持方法，所述方法包括：
当用户设备处于非激活态且满足第二预定条件时，所述用户设备保持所述非激活态；
其中，所述非激活态是位于连接态和空闲态之间的中间状态。
可选地，所述第二预定条件，包括：
所述用户设备驻留在第一类小区；
其中，所述第一类小区是指提供限制服务的小区。
可选地，所述用户设备驻留在第一类小区之后，还包括：
所述用户设备发送第一连接恢复请求，所述第一连接恢复请求用于根据所述非激活态下保存的上下文恢复接入所述第一类小区；
或，
所述用户设备删除在所述非激活态下保存的上下文，所述用户设备从所述非激活态切换为空闲态，所述用户设备发送第一连接建立请求，所述 第一连接建立请求用于请求接入所述第一类小区。
可选地，所述方法还包括：
所述用户设备在所述第一类小区驻留时不发送RAN侧位置区域更新请求；
或，
所述用户设备在第一次接入所述第一类小区时发送所述RAN侧位置区域更新请求。
可选地，所述用户设备发送第一连接恢复请求之后，还包括：
在所述用户设备接入第三类小区时，所述用户设备发送RAN侧位置区域更新请求，所述第三类小区是指提供正常服务的小区。
可选地，所述第二预定条件，包括：
在所述用户设备接入第一PLMN被拒绝后，所述用户设备先驻留在第一类小区；所述用户设备根据非接入层的指示成功接入到第二PLMN并驻留在第三类小区；
其中，所述第一类小区是指提供限制服务的小区，所述第三类小区是指提供正常服务的小区。
可选地，所述第二预定条件，包括：
所述用户设备未搜索到任何可驻留的小区。
可选地，所述第二预定条件，包括：
所述用户设备驻留在第二类小区；
其中，所述第二类小区是指预配置的禁止在所述非激活态下执行预定业务的小区。
可选地，所述方法，还包括：
所述用户设备在驻留所述第二类小区时，不发送RAN侧位置区域更新请求；
或，
所述用户设备在第一次接入所述第二类小区时，发送所述RAN侧位置区域更新请求；
或，
若所述用户设备的RAN侧位置区域发生变化，则所述用户设备在接入第四类小区时发送RAN侧位置区域更新请求；
或，
若所述用户设备转换为空闲态，则所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
或，
若所述用户设备发送所述RAN侧位置区域更新请求后接收到拒绝更新消息，则所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
或，
若所述用户设备在发送所述RAN侧位置区域更新请求后，接收到携带第八指示的接受消息，则所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；所述第八指示用于指示所述用户设备禁止在所述非激活态下进行数据收发业务，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应；
或，
所述用户设备在驻留所述第二类小区时不发送所述RAN侧位置区域更新请求，且所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
其中，所述第四类小区是指预配置的允许在所述非激活态下工作的小区。
可选地，所述方法还包括：
所述用户设备在保持所述非激活态时，不执行数据收发业务。
可选地，所述方法还包括：
所述用户设备发送第二连接恢复请求，所述第二连接恢复请求用于请求根据所述用户设备在非激活态下的上下文恢复接入所述第二类小区。
可选地，所述第二预定条件，包括：
所述用户设备发送第二连接建立请求后，接收到携带有第九指示的拒绝接入消息；
其中，所述第二连接建立请求用于请求将所述用户设备接入驻留小区，所述第九指示用于指示所述用户设备保持在所述非激活态。
可选地，所述第二预定条件，包括：
所述用户设备发送RAN侧位置区域更新请求后，接收到接受消息，所述接受消息携带有第十指示，所述第十指示用于指示所述用户设备禁止在所述非激活态下执行数据收发业务；
其中，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应。
可选地，所述第二预定条件，包括：
所述用户设备发送RAN侧位置区域更新请求后，接收到接受消息；根据所述接受消息成功进行RAN侧位置区域更新；
其中，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应，所述RAN侧位置区域更新请求未携带有预定标识，所述预定标识用于请求进入连接态。
可选地，所述第二预定条件，包括：
在所述用户设备发送携带有预定标识的RAN侧位置区域更新请求后，所述用户设备接收到包含拒绝指示的接受消息，根据所述接受消息成功进 行RAN侧位置区域更新；
其中，所述预定标识用于表示所述用户设备请求进入连接态，所述拒绝指示用于指示禁止所述用户设备进入连接态，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后接收到的响应。
可选地，所述第二预定条件，包括：
在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第一预定次数时，所述用户设备等待第三预定时长后重新发送所述RAN侧位置区域更新请求并重新统计次数。
可选地，所述第二预定条件，包括：
在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第二预定次数时，所述用户设备停止更新并等待所述用户设备需要接入驻留小区时重新发送所述RAN侧位置区域更新请求或发起第三连接恢复请求；
其中，所述第三连接恢复请求用于请求根据所述非激活态下保存的上下文恢复接入所述驻留小区。
可选地，所述第二预定条件，包括：
在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第三预定次数时，所述用户设备停止更新并等待所述用户设备接入新的小区时重新发起所述RAN侧位置区域更新请求。
可选地，所述第二预定条件，包括：
所述用户设备在小区重选过程中接入到除目标网络之外的其它网络；
其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
可选地，所述第二预定条件，包括：
所述用户设备在小区重选过程中接入到除目标网络之外的其它网络， 且已接入到所述其它网络的时长在第四预定时长之内；
其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
可选地，所述第二预定条件，包括：
所述用户设备在小区重选过程中接入第二预定网络；
其中，所述第二预定网络是指预配置的允许保留所述用户设备在所述非激活态下的上下文的网络，且所述第二预定网络属于除目标网络之外的其它网络；
其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
可选地，所述第二预定条件，包括：
所述用户设备保持所述非激活态的持续时长在第五预定时长之内；
其中，所述第五预定时长是指预配置的允许所述用户设备保持所述非激活态的最大时长。
可选地，所述第二预定条件，包括：
所述用户设备发起连接恢复失败。
可选地，所述第二预定条件，包括：
所述用户设备在所述非激活状态下发送数据失败或接收数据失败。
根据本申请实施例的第三方面，提供一种状态转换方法，所述方法还包括：
当用户设备处于非激活态且满足第三预定条件时，将所述用户设备从所述非激活态转换为连接态；
其中，所述非激活态是位于所述连接态和空闲态之间的中间状态。
可选地，所述第三预定条件包括：
所述用户设备发送RAN侧位置区域更新请求，接收到接受消息；
所述用户设备根据所述接受消息成功进行RAN侧位置区域更新；
其中，所述RAN侧位置区域更新请求携带有预定标识，所述预定标识用于请求进入所述连接态；所述接受消息用于指示接受所述用户设备的位置区域更新和允许所述用户设备进入所述连接态。
可选地，所述RAN侧位置区域更新请求还携带有NAS层位置区域更新请求，所述用户设备发送RAN侧位置区域更新请求，接收到接受消息之前，还包括：
所述用户设备的非接入层确定所述用户设备进入新的位置更新区域时，所述用户设备的所述非接入层向接入层发送所述NAS层位置区域更新请求。
可选地，所述用户设备发送RAN侧位置区域更新请求，接收到接受消息之前，还包括：
所述用户设备的非接入层确定所述用户设备进入新的位置更新区域时，所述用户设备的所述非接入层向接入层发送NAS层位置区域更新请求，或者，所述用户设备的所述非接入层指示所述接入层建立RRC连接，或者，所述用户设备的所述非接入层指示所述接入层恢复所述RRC连接。
可选地，所述接受消息携带有第十一指示，所述第十一指示用于指示允许所述用户设备进入所述连接态；
或，
所述接受消息未携带有任何指示，所述接受消息用于隐式指示允许所述用户设备进入所述连接态。
根据本申请实施例的第四方面，提供一种状态转换装置，应用于用户设备中，所述装置包括：
处理模块，被配置为当用户设备处于非激活态且满足第一预定条件时，将所述用户设备从所述非激活态转换为空闲态；
其中，所述非激活态是位于连接态和所述空闲态之间的中间状态。
可选地，所述第一预定条件，包括：
所述用户设备的接入层接收到非接入层的第一指示，所述第一指示用于指示所述非接入层的状态从注册状态转换为非注册状态。
可选地，所述第一预定条件，包括：
所述用户设备的接入层向非接入层上报所述接入层状态为所述非激活态后，所述用户设备的所述接入层接收到所述非接入层的第二指示，所述第二指示用于指示所述用户设备建立RRC连接。
可选地，所述第一预定条件，包括：
所述用户设备的接入层接收到非接入层的第三指示，所述第三指示用于指示所述非接入层状态从连接态转换为空闲态；
其中，所述接入层状态中的所述非激活态与所述非接入层状态中的所述连接态对应。
可选地，所述第一预定条件，包括：
所述用户设备的接入层接收到所述非接入层的第四指示，所述第四指示用于指示所述非接入层状态从带有非激活态指示的空闲态转换为不带有非激活态指示的空闲态；
其中，所述接入层状态中的所述非激活态与所述非接入层状态中的带有非激活态指示的空闲态对应。
可选地，所述第一预定条件，包括：
所述用户设备的接入层接收到非接入层的第五指示，所述第五指示用于指示所述用户设备转换为所述空闲态。
可选地，所述第一预定条件，包括：
所述用户设备在接入新的PLMN时被拒绝。
可选地，所述第一预定条件，包括：
所述用户设备的SIM卡未插入。
可选地，所述第一预定条件，包括：
在所述用户设备驻留在第一类小区中时，所述用户设备的决策结果为需要向所述第一类小区发送第一连接建立请求；
其中，所述第一类小区是指用于提供限制服务的小区，所述第一连接建立请求用于请求接入所述第一类小区。
可选地，所述第一预定条件包括：
所述用户设备未搜索到任何可驻留的小区；
或，
所述用户设备未搜索到任何可驻留的小区的持续时长达到第一预定时长。
可选地，所述第一预定条件，包括：
所述用户设备驻留在第二类小区中；
其中，所述第二类小区是指预配置的禁止在所述非激活态下工作的小区。
可选地，所述装置还包括：
发送模块，被配置为所述用户设备发送第二连接建立请求，所述第二连接建立请求用于请求接入所述第二类小区。
可选地，所述第一预定条件，包括：
所述用户设备发送第三连接建立请求后，接收到携带有第六指示的拒绝接入消息；其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区，所述第六指示用于指示所述用户设备转换为所述空闲态；
或，
所述用户设备发送第三连接建立请求后，接收到未携带有第七指示的拒绝接入消息；其中，所述第三连接建立请求用于请求将所述用户设备接 入驻留小区，所述第七指示用于指示所述用户设备保持在所述非激活态。
可选地，所述第一预定条件，包括：
所述用户设备发送RAN侧位置区域更新请求后，接收到拒绝更新消息；
其中，所述RAN侧位置区域更新请求用于请求将所述用户设备的RAN侧的位置区域进行更新。
可选地，所述第一预定条件，包括：
所述用户设备发起RAN侧位置区域更新请求后更新失败的连续次数达到预定次数；
其中，所述RAN侧位置区域更新请求用于请求将所述用户设备的RAN侧的所述位置区域进行更新。
可选地，所述第一预定条件，包括：
所述用户设备在小区重选过程中接入到除目标网络之外的其它网络后，重新接入所述目标网络且所述用户设备在所述非激活态下保存的上下文丢失；
其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
可选地，所述第一预定条件，包括：
所述用户设备在小区重选过程中接入第一预定网络；
其中，所述第一预定网络是指预配置的禁止所述用户设备保留在所述非激活态下的上下文的网络。
可选地，所述第一预定条件，包括：
所述用户设备保持所述非激活态的持续时长达到第二预定时长；
其中，所述第二预定时长是指预配置的允许所述用户设备保持在所述非激活态的最大时长。
根据本申请实施例的第五方面，提供一种状态保持装置，应用于用户 设备中，所述装置包括：
处理模块，被配置为当用户设备处于非激活态且满足第二预定条件时，所述用户设备保持所述非激活态；
其中，所述非激活态是位于连接态和空闲态之间的中间状态。
可选地，所述第二预定条件，包括：
所述用户设备驻留在第一类小区；
其中，所述第一类小区是指提供限制服务的小区。
可选地，所述装置还包括：
发送模块，被配置为在驻留所述第一类小区后，发送第一连接恢复请求，所述第一连接恢复请求用于根据所述非激活态下保存的上下文恢复接入所述第一类小区；
或，
所述发送模块，被配置为在驻留所述第一类小区后，删除在所述非激活态下保存的上下文，所述用户设备从所述非激活态切换为空闲态，所述用户设备发送第一连接建立请求，所述第一连接建立请求用于请求接入所述第一类小区。
可选地，所述装置还包括：
发送模块，被配置为在所述第一类小区驻留时不发送RAN侧位置区域更新请求；
或，
所述发送模块，被配置为在第一次接入所述第一类小区时发送所述RAN侧位置区域更新请求。
可选地，所述发送模块，还被配置为
在接入第三类小区时，发送RAN侧位置区域更新请求，所述第三类小区是指提供正常服务的小区。
可选地，所述第二预定条件，包括：
在所述用户设备接入第一PLMN被拒绝后，所述用户设备先驻留在第一类小区；所述用户设备根据非接入层的指示成功接入到第二PLMN并驻留在第三类小区；
其中，所述第一类小区是指提供限制服务的小区，所述第三类小区是指提供正常服务的小区。
可选地，所述第二预定条件，包括：
所述用户设备未搜索到任何可驻留的小区。
可选地，所述第二预定条件，包括：
所述用户设备驻留在第二类小区；
其中，所述第二类小区是指预配置的禁止在所述非激活态下执行预定业务的小区。
可选地，所述装置还包括：
发送模块，被配置为在驻留所述第二类小区时，不发送RAN侧位置区域更新请求；
或，
所述发送模块，还被配置为在第一次接入所述第二类小区时，发送所述RAN侧位置区域更新请求；
或，
所述发送模块，还被配置为若RAN侧位置区域发生变化，则在接入第四类小区时发送RAN侧位置区域更新请求；
或，
所述发送模块，还被配置为若所述用户设备转换为空闲态，则在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
或，
所述发送模块，还被配置为若发送所述RAN侧位置区域更新请求后接收到拒绝更新消息，则在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
或，
所述发送模块，还被配置为若所述用户设备在发送所述RAN侧位置区域更新请求后，接收到携带第八指示的接受消息，则在接入所述第四类小区时发送所述RAN侧位置区域更新请求；所述第八指示用于指示所述用户设备禁止在所述非激活态下进行数据收发业务，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应；
或，
所述发送模块，还被配置为所述用户设备在驻留所述第二类小区时不发送所述RAN侧位置区域更新请求，且所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
其中，所述第四类小区是指预配置的允许在所述非激活态下工作的小区。
可选地，所述装置还包括：
所述处理模块，还被配置为在保持所述非激活态时，不执行数据收发业务。
可选地，所述装置还包括：
发送模块，被配置为在保持所述非激活态后，发送第二连接恢复请求，所述第二连接恢复请求用于请求根据所述用户设备在非激活态下的上下文恢复接入所述第二类小区。
可选地，所述第二预定条件，包括：
所述用户设备发送第二连接建立请求后，接收到携带有第九指示的拒绝接入消息；
其中，所述第二连接建立请求用于请求将所述用户设备接入驻留小区，所述第九指示用于指示所述用户设备保持在所述非激活态。
可选地，所述第二预定条件，包括：
所述用户设备发送RAN侧位置区域更新请求后，接收到接受消息，所述接受消息携带有第十指示，所述第十指示用于指示所述用户设备禁止在所述非激活态下执行数据收发业务；
其中，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应。
可选地，所述第二预定条件，包括：
所述用户设备发送RAN侧位置区域更新请求后，接收到接受消息；根据所述接受消息成功进行RAN侧位置区域更新；
其中，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应，所述RAN侧位置区域更新请求未携带预定标识，所述预定标识用于请求进入连接态。
可选地，所述第二预定条件，包括：
在所述用户设备发送携带有预定标识的RAN侧位置区域更新请求后，所述用户设备接收到包含拒绝指示的接受消息，根据所述接受消息成功进行RAN侧位置区域更新；
其中，所述预定标识用于表示所述用户设备请求进入连接态，所述拒绝指示用于指示禁止所述用户设备进入连接态，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后接收到的响应。
可选地，所述第二预定条件，包括：
在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第一预定次数时，所述用户设备等待第三预定时长后重新发送所述RAN侧位置区域更新请求并重新统计次数。
可选地，所述第二预定条件，包括：
在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第二预定次数时，所述用户设备停止更新并等待所述用户设备需要接入驻留小区时重新发送所述RAN侧位置区域更新请求或发起第三连接恢复请求；
其中，所述第三连接恢复请求用于请求根据所述非激活态下保存的上下文恢复接入所述驻留小区。
可选地，所述第二预定条件，包括：
在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第三预定次数时，所述用户设备停止更新并等待所述用户设备接入新的小区时重新发起所述RAN侧位置区域更新请求。
可选地，所述第二预定条件，包括：
所述用户设备在小区重选过程中接入到除目标网络之外的其它网络；
其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
可选地，所述第二预定条件，包括：
所述用户设备在小区重选过程中接入到除目标网络之外的其它网络，且已接入到所述其它网络的时长在第四预定时长之内；
其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
可选地，所述第二预定条件，包括：
所述用户设备在小区重选过程中接入第二预定网络；
其中，所述第二预定网络是指预配置的允许保留所述用户设备在所述非激活态下的上下文的网络，且所述第二预定网络属于除目标网络之外的其它网络；
其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
可选地，所述第二预定条件，包括：
所述用户设备保持所述非激活态的持续时长在第五预定时长之内；
其中，所述第五预定时长是指预配置的允许所述用户设备保持所述非激活态的最大时长。
可选地，所述第二预定条件，包括：
所述用户设备发起连接恢复失败。
可选地，所述第二预定条件，包括：
所述用户设备在所述非激活状态下发送数据失败或接收数据失败。
根据本申请实施例的第六方面，提供一种状态转换装置，应用于用户设备中，所述装置还包括：
处理模块，被配置为当用户设备处于非激活态且满足第三预定条件时，将所述用户设备从所述非激活态转换为连接态；
其中，所述非激活态是位于所述连接态和空闲态之间的中间状态。
可选地，所述第三预定条件包括：
所述用户设备发送RAN侧位置区域更新请求，接收到接受消息；
所述用户设备根据所述接受消息成功进行RAN侧位置区域更新；
其中，所述RAN侧位置区域更新请求携带有预定标识，所述预定标识用于请求进入所述连接态；所述接受消息用于指示接受所述用户设备的位置区域更新和允许所述用户设备进入所述连接态。
可选地，所述RAN侧位置区域更新请求或者所述RAN侧位置区域更新请求对应的完成消息中还携带有NAS层消息；
所述处理模块还配置为在用户设备发送RAN侧位置区域更新请求，接收到接受消息之前，通过所述用户设备的所述非接入层向接入层发送所述 NAS层消息，或者，所述用户设备的所述非接入层指示所述接入层建立RRC连接，或者，所述用户设备的所述非接入层指示所述接入层恢复所述RRC连接。
可选地，所述接受消息携带有第十一指示，所述第十一指示用于指示允许所述用户设备进入所述连接态；
或，
所述接受消息未携带有任何指示，所述接受消息用于隐式指示允许所述用户设备进入所述连接态。
可选地，所述第三预定条件，包括：
所述用户设备的非接入层确定所述用户设备进入新的位置更新区域时，所述用户设备的所述非接入层向接入层发送NAS层位置区域更新请求；
所述用户设备的接入层发送第三连接建立请求或第三连接恢复请求，所述第三连接建立请求或第三连接恢复请求携带有所述NAS层位置区域更新请求；
所述用户设备成功与驻留小区建立RRC连接；
其中，所述第三连接建立请求是用于请求接入驻留小区的请求；所述第三连接恢复请求是用于请求根据所述非激活态下保存的上下文恢复接入所述驻留小区的请求。
根据本申请实施例的第七方面，提供一种用户设备，包括：
处理器；
配置为存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
当用户设备处于非激活态且满足第一预定条件时，将所述用户设备从所述非激活态转换为空闲态；
其中，所述非激活态是位于连接态和所述空闲态之间的中间状态。
根据本申请实施例的第八方面，提供一种用户设备，包括：
处理器；
配置为存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
当用户设备处于非激活态且满足第二预定条件时，所述用户设备保持所述非激活态；
其中，所述非激活态是位于连接态和空闲态之间的中间状态。
根据本申请实施例的第九方面，提供一种用户设备，包括：
处理器；
配置为存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
当用户设备处于非激活态且满足第三预定条件时，将所述用户设备从所述非激活态转换为连接态；
其中，所述非激活态是位于所述连接态和空闲态之间的中间状态。
本申请实施例提供的技术方案可以包括以下有益效果：
通过在用户设备中增加非激活态，使得非激活态下的UE能够进行小数据包业务的收发，而不需要切换到连接态，解决了在4G中即使UE进行小数据包业务的收发，UE也需要在RRC连接态与RRC空闲态之间来回切换，导致信令资源的浪费问题，达到了在非激活态下UE进行小数据包业务的收发，节省信令资源的效果。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请实施例。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请实施例的原理。
图1是本申请一个示例性实施例示出的移动通信系统的结构示意图；
图2是本申请一个示例性实施例示出的移动通信系统的协议架构图；
图3是本申请一个示例性实施例示出的NAS层状态的示意图；
图4是本申请一个示例性实施例示出的AS层状态的示意图；
图5是根据一示例性实施例示出的一种状态转换方法的方法流程图；
图6A是根据一示例性实施例示出的一种状态转换方法的流程图；
图6B是根据一示例性实施例示出的一种状态转换方法的流程图；
图6C是根据一示例性实施例示出的一种状态转换方法的流程图；
图7A是根据一示例性实施例示出的一种状态保持方法的流程图；
图7B是根据一示例性实施例示出的一种状态保持方法的流程图；
图8是根据一示例性实施例示出的一种状态转换方法的流程图；
图9是根据一示例性实施例示出的一种状态转换装置的框图；
图10是根据一示例性实施例示出的一种用户设备的框图。
具体实施方式
本文所提及的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。
在本文提及的“模块”通常是指存储在存储器中的能够实现某些功能的程序或指令；在本文中提及的“单元”通常是指按照逻辑划分的功能性结构，该“单元”可以由纯硬件实现，或者，软硬件的结合实现。
在本文中提及的“多个”是指两个或两个以上。“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。
图1是本申请一个示例性实施例示出的移动通信系统的结构示意图。可选地，该移动通信系统是5G系统，5G系统又称新空口(New Radio，NR)系统，该移动通信系统还可以是基于5G系统的下代通信系统，本实施例对此不作限定。该移动通信系统包括：用户设备(User Equipment，UE)120、接入网设备140和移动性管理实体(Mobility Management Entity，MME)160。
UE120是指与接入网设备140进行数据通信的设备。UE120可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，UE120还可以称为订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户装置(User Terminal)、用户代理(User Agent)、终端(User Device)。可选地，UE120还可以为中继(Relay)设备，本实施例对此不作限定。
相对于UE120来讲，接入网设备140和MME160属于网络侧，该网络侧包括：无线接入网(Radio Access Network，RAN)和演进的分组核心网(Evolved Packet Core,EPC)。其中，RAN负责所有无线相关功能，包括如调度、无线资源管理、重传协议、编码和各种多天线方案等；EPC负责与无线不相关但需要它提供完整的移动宽带网络的功能，这包括如认证、计费功能、端到端连接的建立等。其中，接入网设备140是RAN中的网元设备，MME160是EPC中的网元设备。
UE120和接入网设备140之间通过无线空口建立无线连接。可选地，该无线空口是基于5G标准的无线空口，比如该无线空口是新空口(New Radio，NR)；或者，该无线空口也可以是基于5G的更下一代移动通信网 络技术的无线空口。可选地，该无线空口还兼容2G、3G和4G等更早代移动通信网络技术的无线空口。
接入网设备140可以是基站，该基站可配置为将接收到的无线帧与IP分组报文进行相互转换，还可协调对空中接口的属性管理。例如，基站可以是5G系统中的基站(gNode-B，gNB)。可选地，该gNB是采用集中分布式架构的基站。当接入网设备140采用集中分布式架构时，通常包括集中单元(Central Unit，CU)和至少两个分布单元(Distributed Unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理层(Physical，PHY)协议栈，本实施例对接入网设备140的具体实现方式不加以限定。
接入网设备140还通过无线网络或有线网络(比如光通信网络)与MME160相连。
MME160配置为负责对UE的承载连接/释放，状态管理和安全密钥的管理。
图2是本申请一个示例性实施例示出的移动通信系统的协议架构图。该协议架构中涉及的设备包括：UE120、接入网设备140和MME160。
UE120中的协议实体分为两层：非接入层(Non-Access Stratum，NAS)和接入层(Access Stratum，AS)。其中：
UE120的NAS层与MME160的NAS层进行通信，完成EPC与终端之间的功能操作。
UE120的AS层包括：PDCP协议实体、RLC协议实体、MAC协议实体和PHY协议实体。UE120的AS层与接入网设备140的AS层进行通信，完成UE与RAN之间的功能操作。比如，AS层负责无线资源控制(Radio  Resource Control，RRC)连接的建立、RRC消息的传输、无线承载的建立、无线承载的取消、RRC连接的断开等。
其中，UE120的NAS层和AS层各自可以在不同的状态之间切换。
结合参考图3，UE120的NAS层状态包括两大状态：注册状态(EMM-REGISTERED STATE)和非注册状态(EMM-DEREGISTERED STATE)。其中，EMM是核心网移动性管理(EPS Mobility Management)的简称。当UE120的非接入层在MME 160中完成注册时，NAS状态为注册状态；当UE120的非接入层在MME 160中没有完成注册或取消注册时，NAS状态为非注册状态。可选地，注册状态又可能分为若干个子状态，比如，注册状态下又分为连接态(EMM-Connected state)和空闲态(EMM-Idle state)。
结合参考图4，UE120的AS层状态包括：连接态(Connect state)、非激活态(inactive state)和空闲态(idle state)，AS层状态又称RRC状态。由于4G系统中的AS层状态仅包括连接态和空闲态，所以非激活态是5G系统中新引入的一种状态。其中：
非激活态是介入连接态和空闲态之间的一种中间状态。非激活态包括但不限于如下特征中的至少一种：
1、在处于非激活态时，UE120会保存在连接态下时创建的上下文(Context)，该上下文还可称为UE上下文、RRC上下文等。该上下文包括了手机网络能力、鉴权信息、协商的安全算法、生成的密钥、创建的连接信息、承载信息等等。对应地，接入网设备也会保存该UE120的上下文。
2、在处于非激活态时，UE120能够进行预定数据业务的收发。可选地，预定数据业务是小数据报文业务，比如UE是车联网设备中的车载设备或物联网设备中的传感器设备，可以在非激活态下进行小数据报文的收发。
3、在处于非激活态时，移动性管理基于小区重选机制。
其中，移动性管理(MM，Mobile Management)即是对移动终端位置信息、安全性以及业务连续性方面的管理。简单来讲，由于UE120是不断移动的，移动性管理是UE120在进入新的小区或称跟踪区(Tracking Area)时，UE与网络侧进行位置区域更新流程，使得网络侧知悉UE当前所在的小区位置。
当UE120处于连接态时，移动性管理基于小区切换机制进行；当UE120处于空闲态时，移动性管理基于小区重选进行。
由于网络侧分为EPC和RAN，UE120与MME160之间的位置区域更新流程，可称为NAS层位置区域更新或EPC侧位置区域更新；UE120与接入网设备140之间的位置区域更新流程，可称为RAN侧位置区域更新或AS层位置区域更新。
在5G系统中，UE120的AS层状态包括：连接态、非激活态和空闲态。
可选地，当UE120从连接态切换到非激活态时，UE120需要保存上下文。
可选地，当UE120从非激活态切换到连接态时，若UE120向接入网设备140发送RRC连接恢复请求，则UE120采用在非激活态下保存的上下文以恢复形式重新与接入网设备120提供的驻留小区建立RRC连接，并在重建RRC连接成功后切换到连接态；若UE120向接入网设备140发送RRC连接建立请求，则UE120删除在非激活态下保存的上下文，UE120以新建形式与接入网设备120提供的驻留小区建立RRC连接。
可选地，当UE120从非激活态切换到空闲态时，UE120删除在非激活态下保存的上下文，然后切换到空闲态。
其中，UE120被何种触发条件下被触发，从而在这三种状态之间进行状态切换，是本申请的各个实施例所要解决的技术问题。
图5是根据一示例性实施例示出的一种状态转换方法的方法流程图， 如图5所示，该状态转换方法应用于图1所示的移动通信系统中的UE120中，该方法包括以下步骤：
在步骤501中，当用户设备处于非激活态时，检测用户设备是否满足预定条件，预定条件为第一预定条件、第二预定条件、第三预定条件中的一种。
当用户设备的接入层状态(或称RRC状态)处于非激活态时，检测用户设备是否满足预定条件，预定条件为第一预定条件、第二预定条件、第三预定条件中的一种。
在一些实施例中，步骤501中的“检测”动作可以省略，比如第一预定条件、第二预定条件、第三预定条件被触发后，直接执行步骤502或步骤503或步骤504，本实施例对此不加以限定。
在步骤502中，当用户设备满足第一预定条件时，将用户设备从非激活态转换为空闲态。
也即将用户设备的接入层状态(或称RRC状态)从非激活态转换为空闲态。
在步骤503中，当用户设备满足第二预定条件时，用户设备保持非激活态。
也即将用户设备的接入层状态(或称RRC状态)保持在非激活态不变。
在步骤504中，当用户设备满足第三预定条件时，将用户设备从非激活态转换为连接态。
也即将用户设备的接入层状态(或称RRC状态)从非激活态转换为连接态。
对于步骤502、步骤503、步骤504，在不同的实施例中可以只执行其中一个分支，或其中任意两个分支，对此本申请实施例不加以限定。
综上所述，本申请实施例中提供的状态转换方法，通过在用户设备中 增加非激活态，使得非激活态下的UE能够进行小数据包业务的收发，而不需要切换到连接态，解决了在4G中即使UE进行小数据包业务的收发，UE也需要在连接态与空闲态之间来回切换，导致信令资源的浪费问题，达到了在非激活态下UE也可以进行小数据包业务的收发，节省信令资源且提高小数据包的收发速度的效果。
图6A是根据一示例性实施例示出的一种状态转换方法的流程图，如图6A所示，该状态转换方法应用于图1所示的移动通信系统的UE120中，该方法包括以下步骤：
在步骤601中，当用户设备处于非激活态时，检测用户设备是否满足第一预定条件，第一预定条件为用户设备的接入层状态与非接入层状态不对应；
本实施例中，用户设备的接入层状态为非激活态。
用户设备的接入层的非激活态会对应非接入层的某个或某些子状态，比如：接入层的非激活态对应非接入层的状态A，当非接入层的状态A转换为状态B时，由于状态B与接入层的非激活态不对应，因此接入层和非接入层之间会出现状态不匹配的问题。
在步骤602中，当用户设备满足第一预定条件时，将用户设备从非激活态转换为空闲态。
对于用户设备的接入层状态与非接入层状态不对应的场景，第一预定条件具体包括如下条件中的至少一种：
1、第一预定条件包括：用户设备的接入层接收到非接入层的第一指示，第一指示用于指示非接入层状态从注册状态转换为非注册状态。
用户设备的非接入层状态转换为非注册状态，通常与用户设备的本地去附着(local detach)相关。换句话说，用户设备在本地去附着后，非接入层状态转换为非注册状态。去附着分为两种：UE本地去附着和网络侧去附 着。本实施例涉及UE的本地去附着流程。
在一种可能的实现中，用户设备在一段时间内找不到小区驻留从而本地去激活所有的EPS承载，并执行本地去附着。
在另一种可能的实现中，用户设备发送去附着请求，但该去附着请求被驻留小区拒绝，且拒绝原因是“禁止UE因发送信令而发起接入(access is barred for originating signalling)”，则用户设备执行本地去附着。
在另一种可能的实现中，用户设备因接收到包含该用户设备的IMSI(International Mobile Subscriber Identification Number，国际移动用户识别码)的寻呼消息而进行本地去附着操作。由于基站在保存有用户设备的上下文时，会使用临时的小区无线网络临时指示(Cell Radio-Network Temporary Identifier，C-RNTI)来寻呼用户设备，当基站在丢失用户设备的上下文时会使用IMSI来寻呼用户设备，因此若用户设备接收到基站发送的携带有IMSI的寻呼消息时，表明基站丢失了用户设备的上下文，则用户设备执行本地去附着。
在实际应用中，用户设备由于任何原因导致本地去附着时，非接入层的状态都会从注册状态转换为非注册状态，从而导致接入层与非接入层的状态不匹配，这种情况下，用户设备需要从非激活态转换为空闲态。
2、第一预定条件包括：用户设备的接入层向非接入层上报接入层状态为非激活态后，用户设备的接入层接收到非接入层的第二指示，第二指示用于指示用户设备建立RRC连接。
在这种场景下，非接入层不直接向接入层告知非接入层的状态，而是需要接入层主动向非接入层上报接入层状态，接入层主动向非接入层上报的状态可能为：连接态、非激活态和空闲态。
当用户设备的接入层向非接入层上报接入层状态为非激活态后，非接入层直接对接入层指示具体操作。
可选地，接入层定期向非接入层上报接入层状态，或者接入层在接入层状态发生变化时向非接入层上报接入层状态。
由于接入层在非激活态下保存有上下文，非接入层通常向接入层发送连接恢复指示，用来根据已保存的上下文恢复用户设备与基站之间的RRC连接。但是，如果非接入层因某些原因向接入层发送第二指示，第二指示用于指示用户设备与基站之间以新建方式建立RRC连接，则用户设备删除已保存的上下文，回到空闲态，然后向基站发送连接建立请求，以便与基站之间以新建方式建立RRC连接。
3、第一预定条件包括：用户设备的接入层接收到非接入层的第三指示，第三指示用于指示非接入层状态从连接态(EMM-Connected)转换为空闲态(EMM-idle)。
其中，接入层状态中的非激活态与非接入层状态中的连接态(EMM-Connected)对应，或者说，接入层状态中的非激活态与非接入层状态中的连接态(EMM-Connected)匹配。当非接入层状态已经切换为空闲态(EMM-idle)，则接入层也需要从非激活态切换为空闲态。
4、第一预定条件包括：用户设备的接入层接收到非接入层的第四指示，第四指示用于指示非接入层状态从带有非激活态指示的空闲态转换为不带有非激活态指示的空闲态。
其中，接入层状态中的非激活态与非接入层状态中的带有非激活态指示的空闲态(EMM-idle with inactive state indication)对应，或者说，接入层状态中的非激活态与非接入层状态中的带有非激活态指示的空闲态匹配。
当非接入层状态已经从带有非激活态指示的空闲态切换为不带有非激活态指示的空闲态(EMM-idle without inactive state indication)，则接入层也需要从非激活态切换为空闲态。
5、第一预定条件包括：用户设备的接入层接收到非接入层的第五指示，第五指示用于指示用户设备转换为空闲态。或者说，第五指示用于指示用户设备的接入层状态转换为空闲态。
6、第一预定条件包括：用户设备在接入新的PLMN(Public Land Mobile Network，公共陆地移动网络)时被拒绝。
已经注册的用户设备在某些情况下也会搜索新的PLMN，比如：当服务请求(service request)或跟踪区域更新请求(tracking area update)被拒绝的情况。
用户设备选择新的PLMN后会向基站发送追踪区域更新请求，若基站回复该PLMN不允许接入，则用户设备的非接入层状态切换到未注册状态，同时，用户设备的接入层切换到空闲态。
综上所述，本申请实施例中提供的状态转换方法，通过当用户设备的接入层与非接入层的状态不匹配时，用户设备从非激活态转换为空闲态，有利于节省用户设备的资源。
图6B是根据一示例性实施例示出的一种状态转换方法的流程图，如图6B所示，该状态转换方法应用于图1所示的实施环境中的UE120中，包括以下步骤：
在步骤603中，当用户设备处于非激活态时，检测用户设备是否满足第一预定条件，第一预定条件包括：在用户设备驻留在第一类小区中时，用户设备的决策结果为需要向第一类小区发送第一连接建立请求；
第一类小区是指用于提供限制服务的小区。第一类小区又称acceptable cell。可选地，第一类小区仅能提供紧急呼叫等业务。
在用户设备的驻留小区是第一类小区时，如果用户设备根据业务需求，决策需要再次建立RRC连接，则进入步骤604。
可选地，发送第一连接建立请求可以由接入层确定，也可以由非接入 层指示接入层确定。
在步骤604中，当用户设备满足第一预定条件时，将用户设备从非激活态转换为空闲态。
也即，用户设备删除在非激活态下保存的上下文，将用户设备的接入层状态从非激活态转换为空闲态。但需要说明的是，本步骤为可选步骤，用户设备也可以在保持非激活态的情况下，直接执行步骤605。
在步骤605中，用户设备向第一类小区发送连接建立请求。
也即，用户设备的接入层状态转换为空闲态后，向第一类小区发送连接建立请求。
需要说明的是，本实施例中的步骤603至步骤605与上一实施例中的步骤并无直接的时序联系，两者可以各自独立执行。
综上所述，本申请实施例中提供的状态转换方法，通过当用户设备驻留在第一类小区中时，若用户设备需要接入第一类小区，通过删除已保存的上下文回到空闲态，再发起连接建立请求。
图6C是根据一示例性实施例示出的一种状态转换方法的流程图，如图6C所示，该状态转换方法应用于图1所示的移动通信系统中的UE120中，包括以下步骤：
在步骤606中，当用户设备处于非激活态时，检测用户设备是否满足第一预定条件，第一预定条件包括：用户设备驻留在第二类小区。
第二类小区是指预配置的禁止在非激活态下工作的小区。此处的“预配置”是指由接入网设备预先发送信令来配置。
在实际应用中，基站预先向UE配置禁止在非激活态下工作的小区列表、区域ID(或称RAN通知区域ID)、频率、PLMN中的至少一项信息，用户设备可能驻留在小区列表中的小区上，或驻留在属于该区域ID的小区上，或者驻留在指定频率或PLMN的小区上。虽然，用户设备在第二类小 区的驻留优先级要低于允许在非激活态下工作的小区(即正常小区)的驻留优先级，但用户设备在选择驻留小区时依然有可能选择到第二类小区。
在步骤607中，当用户设备满足第一预定条件时，将用户设备从非激活态转换为空闲态。
如果用户设备驻留在了第二类小区，则用户设备删除在非激活态下已保存的上下文，进入空闲态。
可选地，用户设备在从非激活态转换为空闲态之后，如果业务决策需要建立RRC连接，则用户设备向第二类小区发送第二连接建立请求，第二连接建立请求用于请求接入第二类小区。
需要说明的是，本实施例中的步骤606至步骤607与上一实施例中的步骤并无直接的时序联系，两者可以各自独立执行。
综上所述，本申请实施例中提供的状态转换方法，通过当用户设备驻留在禁止在非激活态下工作的小区时，转换到空闲态可以节约用户设备的计算资源。
在本申请的其他可选实施例中，用户设备在非激活态下，满足如下的任意一种其他第一预定条件时，用户设备从非激活态转换为空闲态。
可选地，第一预定条件包括：用户设备的SIM卡未插入。其中，SIM卡未插入包括：原始状态即为未插入，或者在已插入SIM卡后中途拔出。
可选地，第一预定条件包括：用户设备未搜索到任何可驻留的小区。
可选地，第一预定条件包括：用户设备未搜索到任何可驻留的小区的持续时长达到第一预定时长。
可选地，第一预定时长是网络侧预配置的，或者用户设备自定义的。
可选地，第一预定条件包括：用户设备发送第三连接建立请求后，接收到拒绝接入消息。其中，第三连接建立请求用于请求将用户设备接入驻留小区。
用户设备向基站发送第三连接建立请求，基站向用户设备发送拒绝建立连接消息，用户设备根据拒绝建立连接消息从非激活态转换为空闲态。
可选地，第一预定条件包括：用户设备发送第三连接建立请求后，接收到携带有第六指示的拒绝接入消息，其中，第三连接建立请求用于请求将用户设备接入驻留小区，第六指示用于指示用户设备转换为空闲态。
可选地，用户设备向基站发送第三连接建立请求后，基站向用户设备发送拒绝接入消息，该拒绝接入消息中携带有指示进入空闲态的指示，则用户设备根据拒绝接入消息转换为空闲态。
可选地，第一预定条件包括：用户设备发送第三连接建立请求后，接收到未携带有第七指示的拒绝接入消息，其中，第三连接建立请求用于将用户设备接入驻留小区，第七指示用于指示用户设备保持在非激活态。
用户设备向基站发送第三连接建立请求，基站向用户设备发送未携带指示用户设备保持非激活态的拒绝接入消息，由于基站没有明确指示用户设备保持非激活态，因此用户设备根据拒绝接入消息转换为空闲态。
可选地，第一预定条件包括：用户设备发送RAN侧位置区域更新请求后，接收到拒绝更新消息，其中，RAN侧位置区域更新请求用于请求将用户设备的RAN侧的位置区域进行更新。由于基站拒绝用户设备更新位置区域，因此用户设备根据拒绝更新消息转换为空闲态。
可选地，第一预定条件包括：用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到预定次数。
在实际实现时，用户设备发送RAN侧位置区域更新请求发送失败或没有收到基站返回的消息时，用户设备均不能完成更新。
可选地，第一预定条件包括：用户设备在小区重选过程中接入到除目标网络之外的其它网络后，重新接入目标网络且用户设备在非激活态下保存的上下文丢失，其中，目标网络是支持用户设备在非激活态下工作的网 络。可选地，目标网络是5G网络。
在实际应用中，无线网络A是禁止在非激活态下工作的网络，无线网络B是允许在非激活态下工作的网络，当用户设备从无线网络A切换到无线网络B时，若用户设备的上下文丢失，则用户设备需要回到空闲态。
可选地，第一预定条件包括：用户设备在小区重选过程中接入第一预定网络，其中，所述第一预定网络是指预配置的禁止用户设备保留在非激活态下的上下文的网络。
可选地，第一预定条件包括：用户设备保持非激活态的持续时长达到第二预定时长，其中，第二预定时长是指预配置的允许用户设备保持在非激活态的最大时长。
可选地，第二预定时长为系统预配置或用户设备和基站约定的时长。
图7A是根据一示例性实施例示出的一种状态保持方法的流程图，如图7A所示，该状态保持方法应用于图1所示的移动通信系统的UE120中，包括以下步骤：
在步骤701中，当用户设备处于非激活态时，检测用户设备是否满足第二预定条件，第二预定条件包括用户设备驻留在第一类小区。
第一类小区是指提供限制服务的小区。
在步骤702中，当用户设备满足第二预定条件时，用户设备保持非激活态。
即用户设备驻留在第一类小区时，用户设备的接入层保持非激活态。
可选地，在用户设备驻留在第一类小区之后，若用户设备需要接入第一类小区时，可以通过以下两种方式：
方式一，用户设备发送第一连接恢复请求，第一连接恢复请求用于根据非激活态下保存的上下文恢复接入第一类小区。
方式二，用户设备删除在非激活态下保存的上下文，用户设备从非激 活态转换为空闲态，用户设备发送第一连接建立请求，第一连接建立请求用于请求接入第一类小区。
可选地，用户设备发送第一连接恢复请求还是第一连接建立请求由接入层确定，或由用户设备的非接入层指示接入层确定。
可选地，用户设备在第一类小区驻留时不发送RAN侧位置区域更新请求。
若用户设备在第一类小区驻留时不发送RAN侧位置区域更新请求，则基站在一段时间内不能获知用户设备驻留的位置区域，直到用户设备接入提供正常服务的小区后再发送RAN侧位置区域更新请求。
可选地，用户设备在第一次接入第一类小区时发送RAN侧位置区域更新请求。
与前一种情况区别的是，用户设备仅在第一次接入第一类小区时发送RAN侧位置区域更新请求，虽然第一类小区不提供数据收发业务，但基站侧能够获知用户设备驻留的位置区域。
可选地，用户设备在驻留第一类小区后又接入第三类小区时，用户设备发送RAN侧位置区域更新请求，第三类小区是指提供正常服务的小区(suitable cell)。
第三类小区是能够进行正常的数据收发的小区。
综上所述，本申请实施例中提供的状态转换方法，通过用户设备驻留在第一类小区时，保持非激活态，使得用户设备在再次接入第三类小区时，不需要进行状态切换，且能够根据已保存的上下文再次恢复RRC连接，避免了用户设备第一类小区和第三类小区之间移动时引起的状态乒乓问题。
图7B是根据一示例性实施例示出的一种状态保持方法的流程图，如图7B所示，该状态保持方法应用于图1所示的实施环境中的UE120中，包括以下步骤：
在步骤703中，当用户设备处于非激活态时，检测用户设备是否满足第二预定条件，第二预定条件包括：用户设备驻留在第二类小区。
第二类小区是指预配置的禁止在非激活态下执行预定业务的小区。
在步骤704中，当用户设备处于非激活态且满足第二预定条件时，用户设备保持非激活态。
可选地，用户设备在保持非激活态时，不执行数据收发业务。
可选地，当用户设备驻留在第二类小区后，若用户设备因业务需求(比如需要发送数据)，则用户设备发送第二连接恢复请求，第二连接恢复请求用于请求根据用户设备在非激活态下的上下文接入第二类小区。
可选地，用户设备在驻留在第二类小区时，不发送RAN侧位置区域更新请求。
若用户设备在第二类小区驻留时不发送RAN侧位置区域更新请求，则基站在一段时间内不能获知用户设备驻留的位置区域，直到用户设备接入允许在非激活态下工作的小区后发送RAN侧位置区域更新请求。
可选地，用户设备在第一次接入第二类小区时，发送RAN侧位置区域更新请求。
可选地，若用户设备的RAN侧位置区域发生变化，则用户设备在接入第四类小区时发送RAN侧位置区域更新请求。其中，第四类小区是指预配置的允许在非激活态下工作的小区。
可选地，若用户设备转换为空闲态，则用户设备在接入第四类小区时发送RAN侧位置区域更新请求。
可选地，若用户设备发送RAN侧位置区域更新请求后接收到拒绝更新消息，则用户设备在接入第四类小区时发送RAN侧位置区域更新请求。
可选地，若用户设备在发送RAN侧位置区域更新请求后，接收到携带第八指示的接受消息，则用户设备在接入第四类小区时发送RAN侧位置区 域更新请求，第八指示用于指示用户设备禁止在非激活态下进行数据收发业务，接受消息是用户设备在发送RAN侧位置区域更新请求后收到的响应。
可选地，用户设备在驻留第二类小区时不发送RAN侧位置区域更新请求，且用户设备在接入第四类小区时发送RAN侧位置区域更新请求。
需要说明的是，本实施例中的步骤703至步骤704与上一实施例中的步骤并无直接的时序联系，两者可以各自独立执行。
综上所述，本申请实施例中提供的状态保持方法，通过让用户设备驻留在第二类小区时保持非激活态，可以使用户设备通过已保存的上下位恢复RRC连接，节省网络侧的信令资源。
在本申请的其他可选实施例中，用户设备在非激活态下，满足如下至少一种其他第二预定条件时，用户设备保持非激活态。
可选地，第二预定条件包括：在用户设备接入第一PLMN被拒绝后，用户设备先驻留在第一类小区；用户设备根据非接入层的指示成功接入到第二PLMN并驻留在第三类小区。
其中，第一类小区是指提供限制服务的小区，第三类小区是指提供正常服务的小区。
可选地，第二预定条件包括：用户设备未搜索到任何可驻留的小区。此时，用户设备保存在非激活态下，可以称之为非激活态下的任意小区接入模式(any cell selection state)。当然，作为替代方案，若用户设备未搜索到任何可驻留的小区，也可以从非激活态切换至空闲态，处于空闲态下的任意小区接入模式。
可选地，第二预定条件包括：用户设备在非激活态下发送第二连接建立请求后，接收到携带有第九指示的拒绝接入消息；其中，第二连接建立请求用于请求将用户设备接入驻留小区，第九指示用于指示用户设备保持在非激活态。
用户设备向基站发送第二连接建立请求后，基站向用户设备发送明确指示用户设备保持在非激活态的拒绝接入消息，则用户设备根据拒绝接入消息保持在非激活态。
可选地，第二预定条件包括：用户设备发送RAN侧位置区域更新请求后，接收到接受消息，接受消息携带有第十指示，第十指示用于指示用户设备禁止在非激活态下执行数据收发业务；其中，接受消息是用户设备在发送RAN侧位置区域更新请求后收到的响应。
可选地，第二预定条件包括：用户设备发送RAN侧位置区域更新请求后，接收到接受消息，根据接受消息成功进行RAN侧位置区域更新；其中，接受消息是用户设备在发送RAN侧位置区域更新请求后收到的响应。
可选地，第二预定条件包括：在用户设备发送携带有预定标识的RAN侧位置区域更新请求后，用户设备接收到包含拒绝指示的接受消息，根据接受消息成功进行RAN侧位置区域更新；其中，预定标识用于表示用户设备请求进入连接态，拒绝指示用于指示禁止用户设备进入连接态，接受消息是用户设备在发送RAN侧位置区域更新请求后接收到的响应。
可选地，第二预定条件包括：在用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第一预定次数时，用户设备等待第三预定时长后重新发送RAN侧位置区域更新请求并重新统计次数。
可选地，第三预定时长是由系统预配置或用户设备和基站约定的时长。
可选地，第二预定条件包括：在用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第二预定次数时，用户设备停止更新并等待用户设备需要接入驻留小区时重新发送RAN侧位置区域更新请求或发起第三连接恢复请求；其中，第三连接恢复请求用于请求根据非激活态下保存的上下文恢复接入所述驻留小区。
可选地，第二预定条件包括：在用户设备发送RAN侧位置区域更新请 求后更新失败的连续次数达到第三预定次数时，用户设备停止更新并等待用户设备接入新的小区时重新发起RAN侧位置区域更新请求。
可选地，第二预定条件包括：用户设备在小区重选过程中接入到除目标网络之外的其它网络；其中，目标网络是支持用户设备在非激活态下工作的网络。
可选地，第二预定条件包括：用户设备在小区重选过程中接入到除目标网络之外的其它网络，且已接入到其它网络的时长在第四预定时长之内。
可选地，第二预定条件包括：用户设备在小区重选过程中接入第二预定网络；其中，第二预定网络是指预配置的允许保留用户设备在非激活态下的上下文的网络，且第二预定网络属于除目标网络之外的其它网络。
可选地，第二预定条件包括用户设备保持非激活态的持续时长在第五预定时长之内；其中，第五预定时长是指预配置的允许用户设备保持非激活态的最大时长。
可选地，若基站预配置了用户设备保持非激活态的时长，则基站通过发送RAN侧位置区域更新请求的响应消息来更新用户设备保持非激活态的停留时长信息，当用户设备的非激活态的停留时长信息被更新后，定时器重新计时。
在一种可能的实现中，若用户设备从非激活态转换为连接态，则用户设备在非激活态下的停留时长作废。
可选地，第二预定条件包括：用户设备发起连接恢复失败。也即，用户设备发送RRC连接恢复请求后，未收到响应或者收到拒绝响应。
可选地，第二预定条件包括：用户设备在非激活状态下发送数据失败或接收数据失败。
综上所述，本申请实施例中提供的状态保持方法，通过将用户设备保持在非激活态，使得用户设备在进行小数据包业务的收发时，不需要转换 为连接态，从而节省了信令资源。
图8是根据一示例性实施例示出的一种状态转换方法的流程图，如图8所示，该状态转换方法应用于图1所示的移动通信系统的UE120中，包括以下步骤。
在步骤801中，当用户设备处于非激活态时，检测用户设备是否满足第三预定条件，第三预定条件包括：用户设备发送携带有预定标识的RAN侧位置区域更新请求，且接收到接受消息；根据接收消息成功进行RAN侧位置区域更新。
其中，RAN侧位置区域更新请求携带有预定标识，预定标识用于请求进入连接态。也即，用户设备处于非激活态时，如果业务需求需要切换回连接态，则用户设备在向基站发送RAN侧位置区域更新请求的过程中，在RAN侧位置区域更新请求中携带预定标识，该预定标识用于表示用户设备请求进入连接态。
此时，基站可以反馈接受消息，该接受消息不仅表示接受用户设备的位置区域更新，同时该接受消息用于指示允许用户设备进入连接态。
可选地，该接受消息携带有第十一指示，第十一指示用于指示允许用户设备进入连接态；可选地，接受消息未携带有任何指示，接受消息用于隐式指示允许用户设备进入连接态，换句话说，如果基站在接受消息中未携带指示，则表示允许用户设备进入连接态；如果基站在接受消息中携带拒绝指示，则表示不允许用户设备进入连接态。
用户设备在接收到接受消息后，根据接收消息成功进行RAN侧位置区域更新。
在步骤802中，当用户设备满足第三预定条件时，将用户设备从非激活态转换为连接态。
可选地，用户设备在接受消息指示允许接入连接态时，将用户设备从 激活态转换为连接态。
在基于图8的可选实施例中，用户设备向接入网设备发送的RAN侧位置区域更新请求或者该RAN侧位置区域更新请求对应的完成消息中还携带有NAS层请求，该NAS消息用于触发NAS层位置区域更新或者EPC侧位置区域更新。其中，完成消息是用户设备在成功进行RAN侧位置区域更新后发送的。
在该可选实施例中，该NAS消息的捎带发送机制由用户设备的非接入层确定出用户设备进入新的位置更新区域后触发，也即，用户设备在向接入网设备发送携带有预定标识和NAS消息的RAN侧位置区域更新之前，还包括如下步骤：
用户设备的非接入层向接入层发送NAS层消息，或者，用户设备的所述非接入层指示接入层建立RRC连接，或者，用户设备的非接入层指示接入层恢复RRC连接。
综上所述，本申请实施例中提供的状态保持方法，通过在用户设备发送的RAN侧位置区域更新请求中携带预定标识，在基站发送的接受消息中明确指示恢复连接或不包含指示默认恢复连接时，用户设备从非激活态转换为连接态，以便于用户设备在连接态下进行各项数据业务的收发。
需要说明的是，上述各个实施例中提及的状态名称、消息名称均为示意性的，本实施例并不限制上述实施例中提及的状态名称、消息名称。只要是具有相同状态特征或者相同消息功能，即视为本申请实施例的保护范围。
下述为本申请装置实施例，可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节，请参照本申请方法实施例。
图9是根据一示例性实施例示出的一种状态转换装置的框图，如图9所示，该状态转换装置应用于图1所示的移动通信系统中的UE120中，该 状态转换装置包括但不限于：处理模块910。
处理模块910，被配置为当用户设备处于非激活态且满足第一预定条件时，将用户设备从非激活态转换为空闲态；
处理模块910，被配置为当用户设备处于非激活态且满足第二预定条件时，保持非激活态；
处理模块910，被配置为当用户设备处于非激活态且满足第三预定条件时，将用户设备从非激活态转换为连接态；
其中，非激活态是位于连接态和空闲态之间的中间状态。
可选地，第一预定条件，包括：
用户设备的接入层接收到非接入层的第一指示，第一指示用于指示非接入层的状态从注册状态转换为非注册状态。
可选地，第一预定条件，包括：
用户设备的接入层向非接入层上报接入层状态为非激活态后，用户设备的接入层接收到非接入层的第二指示，第二指示用于指示用户设备建立RRC连接。
可选地，第一预定条件，包括：
用户设备的接入层接收到非接入层的第三指示，第三指示用于指示非接入层状态从连接态转换为空闲态；
其中，接入层状态中的非激活态与非接入层状态中的连接态对应。
可选地，第一预定条件，包括：
用户设备的接入层接收到非接入层的第四指示，第四指示用于指示非接入层状态从带有非激活态指示的空闲态转换为不带有非激活态指示的空闲态；
其中，接入层状态中的非激活态与非接入层状态中的带有非激活态指示的空闲态对应。
可选地，第一预定条件，包括：
用户设备的接入层接收到非接入层的第五指示，第五指示用于指示用户设备转换为空闲态。
可选地，第一预定条件，包括：
用户设备在接入新的PLMN时被拒绝。
可选地，第一预定条件，包括：
用户设备的SIM卡未插入。
可选地，第一预定条件，包括：
在用户设备驻留在第一类小区中时，用户设备的决策结果为需要向第一类小区发送第一连接建立请求；
其中，第一类小区是指用于提供限制服务的小区，第一连接建立请求用于请求接入第一类小区。
可选地，第一预定条件包括：
用户设备未搜索到任何可驻留的小区；
或，
用户设备未搜索到任何可驻留的小区的持续时长达到第一预定时长。
可选地，第一预定条件，包括：
用户设备驻留在第二类小区中；
其中，第二类小区是指预配置的禁止在非激活态下工作的小区。
可选地，该装置还包括：发送模块920。
发送模块920，被配置为用户设备发送第二连接建立请求，第二连接建立请求用于请求接入第二类小区。
可选地，第一预定条件，包括：
用户设备发送第三连接建立请求后，接收到拒绝接入消息；
其中，第三连接建立请求用于请求将用户设备接入驻留小区。
可选地，第一预定条件，包括：
用户设备发送第三连接建立请求后，接收到携带有第六指示的拒绝接入消息；其中，第三连接建立请求用于请求将用户设备接入驻留小区，第六指示用于指示用户设备转换为空闲态；
或，
用户设备发送第三连接建立请求后，接收到未携带有第七指示的拒绝接入消息；其中，第三连接建立请求用于请求将用户设备接入驻留小区，第七指示用于指示用户设备保持在非激活态。
可选地，第一预定条件，包括：
用户设备发送RAN侧位置区域更新请求后，接收到拒绝更新消息；
其中，RAN侧位置区域更新请求用于请求将用户设备的RAN侧的位置区域进行更新。
可选地，第一预定条件，包括：
用户设备发起RAN侧位置区域更新请求后更新失败的连续次数达到预定次数；
其中，RAN侧位置区域更新请求用于请求将用户设备的RAN侧的位置区域进行更新。
可选地，第一预定条件，包括：
用户设备在小区重选过程中接入到除目标网络之外的其它网络后，重新接入目标网络且用户设备在非激活态下保存的上下文丢失；
其中，目标网络是支持用户设备在非激活态下工作的网络。
可选地，第一预定条件，包括：
用户设备在小区重选过程中接入第一预定网络；
其中，第一预定网络是指预配置的禁止用户设备保留在非激活态下的上下文的网络。
可选地，第一预定条件，包括：
用户设备保持非激活态的持续时长达到第二预定时长；
其中，第二预定时长是指预配置的允许用户设备保持在非激活态的最大时长。
可选地，第二预定条件，包括：
用户设备驻留在第一类小区；
其中，第一类小区是指提供限制服务的小区。
可选地，发送模块920，被配置为用户设备发送第一连接恢复请求，第一连接恢复请求用于根据非激活态下保存的上下文恢复接入第一类小区；
或，
发送模块920，被配置为用户设备删除在非激活态下保存的上下文，用户设备从非激活态切换为空闲态，用户设备发送第一连接建立请求，第一连接建立请求用于请求接入第一类小区。
可选地，发送模块920，被配置为在第一类小区驻留时不发送RAN侧位置区域更新请求；
或，
发送模块920，被配置为在第一次接入第一类小区时发送RAN侧位置区域更新请求。
可选地，发送模块920，还被配置为在用户设备接入第三类小区时，发送RAN侧位置区域更新请求，第三类小区是指提供正常服务的小区。
可选地，第二预定条件，包括：
在用户设备接入第一PLMN被拒绝后，用户设备先驻留在第一类小区；用户设备根据非接入层的指示成功接入到第二PLMN并驻留在第三类小区；
其中，第一类小区是指提供限制服务的小区，第三类小区是指提供正 常服务的小区。
可选地，第二预定条件，包括：
用户设备未搜索到任何可驻留的小区。
可选地，第二预定条件，包括：
用户设备驻留在第二类小区；
其中，第二类小区是指预配置的禁止在非激活态下执行预定业务的小区。
可选地，发送模块920，被配置为在驻留第二类小区时，不发送RAN侧位置区域更新请求；
或，
发送模块920，还被配置为在第一次接入第二类小区时，发送RAN侧位置区域更新请求；
或，
发送模块920，还被配置为若用户设备的RAN侧位置区域发生变化，则在接入第四类小区时发送RAN侧位置区域更新请求；
或，
发送模块920，还被配置为若用户设备转换为空闲态，则在接入第四类小区时发送RAN侧位置区域更新请求；
或，
发送模块920，还被配置为若发送RAN侧位置区域更新请求后接收到拒绝更新消息，则在接入第四类小区时发送RAN侧位置区域更新请求；
或，
发送模块920，还被配置为若在发送RAN侧位置区域更新请求后，接收到携带第八指示的接受消息，则在接入第四类小区时发送RAN侧位置区域更新请求；第八指示用于指示用户设备禁止在非激活态下进行数据收发 业务，接受消息是用户设备在发送RAN侧位置区域更新请求后收到的响应；
或，
发送模块920，还被配置为用户设备在驻留第二类小区时不发送RAN侧位置区域更新请求，且在接入第四类小区时发送RAN侧位置区域更新请求；
其中，第四类小区是指预配置的允许在非激活态下工作的小区。
可选地，处理模块910，还被配置为用户设备在保持非激活态时，不执行数据收发业务。
可选地，发送模块920，被配置为用户设备发送第二连接恢复请求，第二连接恢复请求用于请求根据用户设备在非激活态下的上下文恢复接入第二类小区。
可选地，第二预定条件，包括：
用户设备发送第二连接建立请求后，接收到携带有第九指示的拒绝接入消息；
其中，第二连接建立请求用于请求将用户设备接入驻留小区，第九指示用于指示用户设备保持在非激活态。
可选地，第二预定条件，包括：
用户设备发送RAN侧位置区域更新请求后，接收到接受消息，接受消息携带有第十指示，第十指示用于指示用户设备禁止在非激活态下执行数据收发业务；
其中，接受消息是用户设备在发送RAN侧位置区域更新请求后收到的响应。
可选地，第二预定条件，包括：
用户设备发送RAN侧位置区域更新请求后，接收到接受消息；根据接受消息成功进行RAN侧位置区域更新；
其中，接受消息是用户设备在发送RAN侧位置区域更新请求后收到的响应，该接受消息中未携带预定标识，预定标识用于请求进入连接态。
可选地，第二预定条件，包括：
在用户设备发送携带有预定标识的RAN侧位置区域更新请求后，用户设备接收到包含拒绝指示的接受消息，根据接受消息成功进行RAN侧位置区域更新；
其中，预定标识用于表示用户设备请求进入连接态，拒绝指示用于指示禁止用户设备进入连接态，接受消息是用户设备在发送RAN侧位置区域更新请求后接收到的响应。
可选地，第二预定条件，包括：
在用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第一预定次数时，用户设备等待第三预定时长后重新发送RAN侧位置区域更新请求并重新统计次数。
可选地，第二预定条件，包括：
在用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第二预定次数时，用户设备停止更新并等待用户设备需要接入驻留小区时重新发送RAN侧位置区域更新请求或发起第三连接恢复请求；
其中，第三连接恢复请求用于请求根据非激活态下保存的上下文恢复接入驻留小区。
可选地，第二预定条件，包括：
在用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第三预定次数时，用户设备停止更新并等待用户设备接入新的小区时重新发起RAN侧位置区域更新请求。
可选地，第二预定条件，包括：
用户设备在小区重选过程中接入到除目标网络之外的其它网络；
其中，目标网络是支持用户设备在非激活态下工作的网络。
可选地，第二预定条件，包括：
用户设备在小区重选过程中接入到除目标网络之外的其它网络，且已接入到其它网络的时长在第四预定时长之内；
其中，目标网络是支持用户设备在非激活态下工作的网络。
可选地，第二预定条件，包括：
用户设备在小区重选过程中接入第二预定网络；
其中，第二预定网络是指预配置的允许保留用户设备在非激活态下的上下文的网络，且第二预定网络属于除目标网络之外的其它网络；
其中，目标网络是支持用户设备在非激活态下工作的网络。
可选地，第二预定条件，包括：
用户设备保持非激活态的持续时长在第五预定时长之内；
其中，第五预定时长是指预配置的允许用户设备保持非激活态的最大时长。
可选地，第二预定条件，包括：
用户设备发起连接恢复失败。
可选地，第二预定条件，包括：
用户设备在非激活状态下发送数据失败或接收数据失败。
可选地，第三预定条件包括：
用户设备发送RAN侧位置区域更新请求，接收到接受消息；
用户设备根据接受消息成功进行RAN侧位置区域更新；
其中，RAN侧位置区域更新请求携带有预定标识，预定标识用于请求进入连接态；接受消息用于指示接受用户设备的位置区域更新和允许用户设备进入连接态。
可选地，RAN侧位置区域更新请求或者所述RAN侧位置区域更新请 求对应的完成消息中还携带有NAS层请求；
处理模块910，还配置为在用户设备发送RAN侧位置区域更新请求，接收到接受消息之前，通过用户设备的非接入层向接入层发送NAS层消息，或者，用户设备的非接入层指示接入层建立RRC连接，或者，用户设备的非接入层指示接入层恢复RRC连接。
可选地，接受消息携带有第十一指示，第十一指示用于指示允许用户设备进入连接态；或，接受消息未携带有任何指示，接受消息用于隐式指示允许用户设备进入连接态。
综上所述，本申请实施例中提供的状态转换装置，通过在用户设备中增加非激活态，使得非激活态下的UE能够进行小数据包业务的收发，而不需要切换到连接态，解决了在4G中即使UE进行的是小数据包业务的收发，UE也需要在RRC连接态与RRC空闲态之间来回切换，导致信令资源的浪费问题，达到了在非激活态下UE进行小数据包业务的收发，节省信令资源的效果。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本申请一示例性实施例提供了一种用户设备，能够实现本申请实施例提供的状态转换方法，该用户设备包括：处理器、配置为存储处理器可执行指令的存储器；
其中，处理器被配置为：
当用户设备处于非激活态且满足第一预定条件时，将用户设备从非激活态转换为空闲态；
其中，非激活态是位于连接态和空闲态之间的中间状态。
本申请一示例性实施例提供了一种用户设备，能够实现本申请实施例提供的状态保持方法，该用户设备包括：处理器、配置为存储处理器可执 行指令的存储器；
其中，处理器被配置为：
当用户设备处于非激活态且满足第二预定条件时，用户设备保持非激活态；
其中，非激活态是位于连接态和空闲态之间的中间状态。
本申请一示例性实施例提供了一种用户设备，能够实现本申请实施例提供的状态转换方法，该用户设备包括：处理器、配置为存储处理器可执行指令的存储器；
其中，处理器被配置为：
当用户设备处于非激活态且满足第三预定条件时，将用户设备从非激活态转换为连接态；
其中，非激活态是位于连接态和空闲态之间的中间状态。
图10是根据一示例性实施例示出的一种用户设备的框图。例如，用户设备1000可以是移动电话、计算机、数字广播终端、消息收发设备、游戏控制台、平板设备、医疗设备、健身设备、个人数字助理等。
参照图10，用户设备1000可以包括以下一个或多个组件：处理组件1002、存储器1004、电源组件1006、多媒体组件1008、音频组件1010、输入/输出(I/O)接口1012、传感器组件1014、以及通信组件1016。
处理组件1002通常控制用户设备1000的整体操作，诸如与显示、电话呼叫、数据通信、相机操作和记录操作相关联的操作。处理组件1002可以包括一个或多个处理器1018来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1002可以包括一个或多个模块，便于处理组件1002和其他组件之间的交互。例如，处理组件1002可以包括多媒体模块，以方便多媒体组件1008和处理组件1002之间的交互。
存储器1004被配置为存储各种类型的数据以支持在用户设备1000的 操作。这些数据的示例包括用于在用户设备1000上操作的任何应用程序或方法的指令、联系人数据、电话簿数据、消息、图片、视频等。存储器1004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)、电可擦除可编程只读存储器(EEPROM)、可擦除可编程只读存储器(EPROM)、可编程只读存储器(PROM)、只读存储器(ROM)、磁存储器、快闪存储器、磁盘或光盘。
电源组件1006为用户设备1000的各种组件提供电力。电源组件1006可以包括电源管理系统，一个或多个电源，及其他与为用户设备1000生成、管理和分配电力相关联的组件。
多媒体组件1008包括在用户设备1000和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件1008包括一个前置摄像头和/或后置摄像头。当用户设备1000处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1010被配置为输出和/或输入音频信号。例如，音频组件1010包括一个麦克风(MIC)，当用户设备1000处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1004或经由通信组件1016发送。在一些实施例中，音频组件1010还包括一个扬声器，配置为输出音频信号。
I/O接口1012为处理组件1002和外围接口模块之间提供接口，上述外 围接口模块可以是键盘、点击轮、按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1014包括一个或多个传感器，配置为为用户设备1000提供各个方面的状态评估。例如，传感器组件1014可以检测到用户设备1000的打开/关闭状态，组件的相对定位，例如组件为用户设备1000的显示器和小键盘，传感器组件1014还可以检测用户设备1000或用户设备1000一个组件的位置改变，用户与用户设备1000接触的存在或不存在，用户设备1000方位或加速/减速和用户设备1000的温度变化。传感器组件1014可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1014还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1014还可以包括加速度传感器、陀螺仪传感器、磁传感器、压力传感器或温度传感器。
通信组件1016被配置为便于用户设备1000和其他设备之间有线或无线方式的通信。用户设备1000可以接入基于通信标准的无线网络，如Wi-Fi、2G或3G、或它们的组合。在一个示例性实施例中，通信组件1016经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信组件1016还包括近场通信(NFC)模块，以促进短程通信。例如，NFC模块可基于射频识别(RFID)技术、红外数据协会(IrDA)技术、超宽带(UWB)技术、蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，用户设备1000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，配置为执行上述各个方法实施例提供的状态转换方法或状态保持方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存 储介质，例如包括指令的存储器1004，上述指令可由用户设备1000的处理器1018执行以完成上述状态转换方法或状态保持方法。例如，非临时性计算机可读存储介质可以是ROM、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本申请的其它实施方案。本申请实施例旨在涵盖本申请实施例的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本申请实施例的一般性原理并包括本申请实施例未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本申请实施例的真正范围和精神由下面的权利要求指出。
应当理解的是，本申请实施例并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本申请实施例的范围仅由所附的权利要求来限制。
工业实用性
本申请实施例提供的技术方案，通过在用户设备中增加非激活态，使得非激活态下的UE能够进行小数据包业务的收发，而不需要切换到连接态，解决了在4G中即使UE进行小数据包业务的收发，UE也需要在RRC连接态与RRC空闲态之间来回切换，导致信令资源的浪费问题，达到了在非激活态下UE进行小数据包业务的收发，节省信令资源的效果。

Claims (97)

  1. 一种状态转换方法，所述方法包括：
    当用户设备处于非激活态且满足第一预定条件时，将所述用户设备从所述非激活态转换为空闲态；
    其中，所述非激活态是位于连接态和所述空闲态之间的中间状态。
  2. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备的接入层接收到非接入层的第一指示，所述第一指示用于指示所述非接入层的状态从注册状态转换为非注册状态。
  3. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备的接入层向非接入层上报所述接入层状态为所述非激活态后，所述用户设备的所述接入层接收到所述非接入层的第二指示，所述第二指示用于指示所述用户设备建立RRC连接。
  4. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备的接入层接收到非接入层的第三指示，所述第三指示用于指示所述非接入层状态从连接态转换为空闲态；
    其中，所述接入层状态中的所述非激活态与所述非接入层状态中的所述连接态对应。
  5. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备的接入层接收到所述非接入层的第四指示，所述第四指示用于指示所述非接入层状态从带有非激活态指示的空闲态转换为不带有非激活态指示的空闲态；
    其中，所述接入层状态中的所述非激活态与所述非接入层状态中的带有非激活态指示的空闲态对应。
  6. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备的接入层接收到非接入层的第五指示，所述第五指示用 于指示所述用户设备转换为所述空闲态。
  7. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备在接入新的PLMN时被拒绝。
  8. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备的SIM卡未插入。
  9. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    在所述用户设备驻留在第一类小区中时，所述用户设备的决策结果为需要向所述第一类小区发送第一连接建立请求；
    其中，所述第一类小区是指用于提供限制服务的小区，所述第一连接建立请求用于请求接入所述第一类小区。
  10. 根据权利要求1所述的方法，其中，所述第一预定条件包括：
    所述用户设备未搜索到任何可驻留的小区；
    或，
    所述用户设备未搜索到任何可驻留的小区的持续时长达到第一预定时长。
  11. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备驻留在第二类小区中；
    其中，所述第二类小区是指预配置的禁止在所述非激活态下工作的小区。
  12. 根据权利要求11所述的方法，其中，所述将所述用户设备从所述非激活态转换为空闲态之后，还包括：
    所述用户设备发送第二连接建立请求，所述第二连接建立请求用于请求接入所述第二类小区。
  13. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备发送第三连接建立请求后，接收到拒绝接入消息；
    其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区。
  14. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备发送第三连接建立请求后，接收到携带有第六指示的拒绝接入消息；其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区，所述第六指示用于指示所述用户设备转换为所述空闲态；
    或，
    所述用户设备发送第三连接建立请求后，接收到未携带有第七指示的拒绝接入消息；其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区，所述第七指示用于指示所述用户设备保持在所述非激活态。
  15. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备发送RAN侧位置区域更新请求后，接收到拒绝更新消息；
    其中，所述RAN侧位置区域更新请求用于请求将所述用户设备的RAN侧的位置区域进行更新。
  16. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备发起RAN侧位置区域更新请求后更新失败的连续次数达到预定次数；
    其中，所述RAN侧位置区域更新请求用于请求将所述用户设备的RAN侧的所述位置区域进行更新。
  17. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备在小区重选过程中接入到除目标网络之外的其它网络后，重新接入所述目标网络且所述用户设备在所述非激活态下保存的上下文丢失；
    其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
  18. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备在小区重选过程中接入第一预定网络；
    其中，所述第一预定网络是指预配置的禁止所述用户设备保留在所述非激活态下的上下文的网络。
  19. 根据权利要求1所述的方法，其中，所述第一预定条件，包括：
    所述用户设备保持所述非激活态的持续时长达到第二预定时长；
    其中，所述第二预定时长是指预配置的允许所述用户设备保持在所述非激活态的最大时长。
  20. 一种状态保持方法，所述方法包括：
    当用户设备处于非激活态且满足第二预定条件时，所述用户设备保持所述非激活态；
    其中，所述非激活态是位于连接态和空闲态之间的中间状态。
  21. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备驻留在第一类小区；
    其中，所述第一类小区是指提供限制服务的小区。
  22. 根据权利要求21所述的方法，其中，所述用户设备驻留在第一类小区之后，还包括：
    所述用户设备发送第一连接恢复请求，所述第一连接恢复请求用于根据所述非激活态下保存的上下文恢复接入所述第一类小区；
    或，
    所述用户设备删除在所述非激活态下保存的上下文，所述用户设备从所述非激活态切换为空闲态，所述用户设备发送第一连接建立请求，所述第一连接建立请求用于请求接入所述第一类小区。
  23. 根据权利要求21所述的方法，其中，所述方法还包括：
    所述用户设备在所述第一类小区驻留时不发送RAN侧位置区域更新请求；
    或，
    所述用户设备在第一次接入所述第一类小区时发送所述RAN侧位置区域更新请求。
  24. 根据权利要求22所述的方法，其中，所述用户设备发送第一连接恢复请求之后，还包括：
    在所述用户设备接入第三类小区时，所述用户设备发送RAN侧位置区域更新请求，所述第三类小区是指提供正常服务的小区。
  25. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    在所述用户设备接入第一PLMN被拒绝后，所述用户设备先驻留在第一类小区；所述用户设备根据非接入层的指示成功接入到第二PLMN并驻留在第三类小区；
    其中，所述第一类小区是指提供限制服务的小区，所述第三类小区是指提供正常服务的小区。
  26. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备未搜索到任何可驻留的小区。
  27. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备驻留在第二类小区；
    其中，所述第二类小区是指预配置的禁止在所述非激活态下执行预定业务的小区。
  28. 根据权利要求27所述的方法，其中，所述方法，还包括：
    所述用户设备在驻留所述第二类小区时，不发送RAN侧位置区域更新请求；
    或，
    所述用户设备在第一次接入所述第二类小区时，发送所述RAN侧位置区域更新请求；
    或，
    若所述用户设备的RAN侧位置区域发生变化，则所述用户设备在接入第四类小区时发送RAN侧位置区域更新请求；
    或，
    若所述用户设备转换为空闲态，则所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
    或，
    若所述用户设备发送所述RAN侧位置区域更新请求后接收到拒绝更新消息，则所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
    或，
    若所述用户设备在发送所述RAN侧位置区域更新请求后，接收到携带第八指示的接受消息，则所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；所述第八指示用于指示所述用户设备禁止在所述非激活态下进行数据收发业务，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应；
    或，
    所述用户设备在驻留所述第二类小区时不发送所述RAN侧位置区域更新请求，且所述用户设备在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
    其中，所述第四类小区是指预配置的允许在所述非激活态下工作的小区。
  29. 根据权利要求27或28所述的方法，其中，所述方法还包括：
    所述用户设备在保持所述非激活态时，不执行数据收发业务。
  30. 根据权利要求27或28所述的方法，其中，所述方法还包括：
    所述用户设备发送第二连接恢复请求，所述第二连接恢复请求用于请求根据所述用户设备在非激活态下的上下文恢复接入所述第二类小区。
  31. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备发送第二连接建立请求后，接收到携带有第九指示的拒绝接入消息；
    其中，所述第二连接建立请求用于请求将所述用户设备接入驻留小区，所述第九指示用于指示所述用户设备保持在所述非激活态。
  32. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备发送RAN侧位置区域更新请求后，接收到接受消息，所述接受消息携带有第十指示，所述第十指示用于指示所述用户设备禁止在所述非激活态下执行数据收发业务；
    其中，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应。
  33. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备发送RAN侧位置区域更新请求后，接收到接受消息；根据所述接受消息成功进行RAN侧位置区域更新；
    其中，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应，所述RAN侧位置区域更新请求未携带有预定标识，所述预定标识用于请求进入连接态。
  34. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    在所述用户设备发送携带有预定标识的RAN侧位置区域更新请求后，所述用户设备接收到包含拒绝指示的接受消息，根据所述接受消息成功进行RAN侧位置区域更新；
    其中，所述预定标识用于表示请求进入连接态，所述拒绝指示用于指示禁止所述用户设备进入连接态，所述接受消息是所述用户设备在发送所 述RAN侧位置区域更新请求后接收到的响应。
  35. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第一预定次数时，所述用户设备等待第三预定时长后重新发送所述RAN侧位置区域更新请求并重新统计次数。
  36. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第二预定次数时，所述用户设备停止更新并等待所述用户设备需要接入驻留小区时重新发送所述RAN侧位置区域更新请求或发起第三连接恢复请求；
    其中，所述第三连接恢复请求用于请求根据所述非激活态下保存的上下文恢复接入所述驻留小区。
  37. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第三预定次数时，所述用户设备停止更新并等待所述用户设备接入新的小区时重新发起所述RAN侧位置区域更新请求。
  38. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备在小区重选过程中接入到除目标网络之外的其它网络；
    其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
  39. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备在小区重选过程中接入到除目标网络之外的其它网络，且已接入到所述其它网络的时长在第四预定时长之内；
    其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
  40. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备在小区重选过程中接入第二预定网络；
    其中，所述第二预定网络是指预配置的允许保留所述用户设备在所述非激活态下的上下文的网络，且所述第二预定网络属于除目标网络之外的其它网络；
    其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
  41. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备保持所述非激活态的持续时长在第五预定时长之内；
    其中，所述第五预定时长是指预配置的允许所述用户设备保持所述非激活态的最大时长。
  42. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备发起连接恢复失败。
  43. 根据权利要求20所述的方法，其中，所述第二预定条件，包括：
    所述用户设备在所述非激活状态下发送数据失败或接收数据失败。
  44. 一种状态转换方法，所述方法还包括：
    当用户设备处于非激活态且满足第三预定条件时，将所述用户设备从所述非激活态转换为连接态；
    其中，所述非激活态是位于所述连接态和空闲态之间的中间状态。
  45. 根据权利要求44所述的方法，其中，所述第三预定条件包括：
    所述用户设备发送RAN侧位置区域更新请求，接收到接受消息；
    所述用户设备根据所述接受消息成功进行RAN侧位置区域更新；
    其中，所述RAN侧位置区域更新请求携带有预定标识，所述预定标识用于请求进入所述连接态；所述接受消息用于指示接受所述用户设备的位置区域更新和允许所述用户设备进入所述连接态。
  46. 根据权利要求45所述的方法，其中，所述RAN侧位置区域更新请求或者所述RAN侧位置区域更新请求对应的完成消息中还携带有NAS层消息；
    所述用户设备发送RAN侧位置区域更新请求，接收到接受消息之前，还包括：
    所述用户设备的所述非接入层向接入层发送所述NAS层消息，或者，所述用户设备的所述非接入层指示所述接入层建立RRC连接，或者，所述用户设备的所述非接入层指示所述接入层恢复所述RRC连接。
  47. 根据权利要求45所述的方法，其中，
    所述接受消息携带有第十一指示，所述第十一指示用于指示允许所述用户设备进入所述连接态；
    或，
    所述接受消息未携带有任何指示，所述接受消息用于隐式指示允许所述用户设备进入所述连接态。
  48. 一种状态转换装置，应用于用户设备中，所述装置包括：
    处理模块，被配置为当所述用户设备处于非激活态且满足第一预定条件时，将所述用户设备从所述非激活态转换为空闲态；
    其中，所述非激活态是位于连接态和所述空闲态之间的中间状态。
  49. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备的接入层接收到非接入层的第一指示，所述第一指示用于指示所述非接入层的状态从注册状态转换为非注册状态。
  50. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备的接入层向非接入层上报所述接入层状态为所述非激活态后，所述用户设备的所述接入层接收到所述非接入层的第二指示，所述第二指示用于指示所述用户设备建立RRC连接。
  51. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备的接入层接收到非接入层的第三指示，所述第三指示用于指示所述非接入层状态从连接态转换为空闲态；
    其中，所述接入层状态中的所述非激活态与所述非接入层状态中的所述连接态对应。
  52. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备的接入层接收到所述非接入层的第四指示，所述第四指示用于指示所述非接入层状态从带有非激活态指示的空闲态转换为不带有非激活态指示的空闲态；
    其中，所述接入层状态中的所述非激活态与所述非接入层状态中的带有非激活态指示的空闲态对应。
  53. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备的接入层接收到非接入层的第五指示，所述第五指示用于指示所述用户设备转换为所述空闲态。
  54. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备在接入新的PLMN时被拒绝。
  55. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备的SIM卡未插入。
  56. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    在所述用户设备驻留在第一类小区中时，所述用户设备的决策结果为需要向所述第一类小区发送第一连接建立请求；
    其中，所述第一类小区是指用于提供限制服务的小区，所述第一连接建立请求用于请求接入所述第一类小区。
  57. 根据权利要求48所述的装置，其中，所述第一预定条件包括：
    所述用户设备未搜索到任何可驻留的小区；
    或，
    所述用户设备未搜索到任何可驻留的小区的持续时长达到第一预定时长。
  58. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备驻留在第二类小区中；
    其中，所述第二类小区是指预配置的禁止在所述非激活态下工作的小区。
  59. 根据权利要求58所述的装置，其中，所述装置还包括：
    发送模块，被配置为在所述用户设备驻留在所述第二类小区之后，发送第二连接建立请求，所述第二连接建立请求用于请求接入所述第二类小区。
  60. 根据权利要求58所述的装置，其中，所述第一预定条件，包括：
    所述用户设备发送第三连接建立请求后，接收到拒绝接入消息；
    其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区。
  61. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备发送第三连接建立请求后，接收到携带有第六指示的拒绝接入消息；其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区，所述第六指示用于指示所述用户设备转换为所述空闲态；
    或，
    所述用户设备发送第三连接建立请求后，接收到未携带有第七指示的拒绝接入消息；其中，所述第三连接建立请求用于请求将所述用户设备接入驻留小区，所述第七指示用于指示所述用户设备保持在所述非激活态。
  62. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备发送RAN侧位置区域更新请求后，接收到拒绝更新消息；
    其中，所述RAN侧位置区域更新请求用于请求将所述用户设备的RAN 侧的位置区域进行更新。
  63. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备发起RAN侧位置区域更新请求后更新失败的连续次数达到预定次数；
    其中，所述RAN侧位置区域更新请求用于请求将所述用户设备的RAN侧的所述位置区域进行更新。
  64. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备在小区重选过程中接入到除目标网络之外的其它网络后，重新接入所述目标网络且所述用户设备在所述非激活态下保存的上下文丢失；
    其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
  65. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备在小区重选过程中接入第一预定网络；
    其中，所述第一预定网络是指预配置的禁止所述用户设备保留在所述非激活态下的上下文的网络。
  66. 根据权利要求48所述的装置，其中，所述第一预定条件，包括：
    所述用户设备保持所述非激活态的持续时长达到第二预定时长；
    其中，所述第二预定时长是指预配置的允许所述用户设备保持在所述非激活态的最大时长。
  67. 一种状态保持装置，应用于用户设备中，所述装置包括：
    处理模块，被配置为当所述用户设备处于非激活态且满足第二预定条件时，所述用户设备保持所述非激活态；
    其中，所述非激活态是位于连接态和空闲态之间的中间状态。
  68. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备驻留在第一类小区；
    其中，所述第一类小区是指提供限制服务的小区。
  69. 根据权利要求68所述的装置，其中，所述装置还包括：
    发送模块，被配置为在所述用户设备驻留在所述第一类小区后，发送第一连接恢复请求，所述第一连接恢复请求用于根据所述非激活态下保存的上下文恢复接入所述第一类小区；
    或，
    所述发送模块，被配置为在所述用户设备驻留在所述第一类小区后，删除在所述非激活态下保存的上下文，从所述非激活态切换为空闲态，发送第一连接建立请求，所述第一连接建立请求用于请求接入所述第一类小区。
  70. 根据权利要求68所述的装置，其中，所述装置还包括：
    发送模块，被配置为在所述第一类小区驻留时不发送RAN侧位置区域更新请求；
    或，
    所述发送模块，被配置为在第一次接入所述第一类小区时发送所述RAN侧位置区域更新请求。
  71. 根据权利要求69所述的装置，其中，所述发送模块，还被配置为在所述用户设备接入第三类小区时，所述用户设备发送所述RAN侧位置区域更新请求，所述第三类小区是指提供正常服务的小区。
  72. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    在所述用户设备接入第一PLMN被拒绝后，所述用户设备先驻留在第一类小区；所述用户设备根据非接入层的指示成功接入到第二PLMN并驻留在第三类小区；
    其中，所述第一类小区是指提供限制服务的小区，所述第三类小区是 指提供正常服务的小区。
  73. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备未搜索到任何可驻留的小区。
  74. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备驻留在第二类小区；
    其中，所述第二类小区是指预配置的禁止在所述非激活态下执行预定业务的小区。
  75. 根据权利要求74所述的装置，其中，所述装置还包括：
    发送模块，被配置为在驻留所述第二类小区时，不发送RAN侧位置区域更新请求；
    或，
    所述发送模块，还被配置为在第一次接入所述第二类小区时，发送所述RAN侧位置区域更新请求；
    或，
    所述发送模块，还被配置为若所述RAN侧位置区域发生变化，则在接入第四类小区时发送RAN侧位置区域更新请求；
    或，
    所述发送模块，还被配置为若所述用户设备转换为空闲态，则在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
    或，
    所述发送模块，还被配置为若在发送所述RAN侧位置区域更新请求后接收到拒绝更新消息，则在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
    或，
    所述发送模块，还被配置为若在发送所述RAN侧位置区域更新请求后， 接收到携带第八指示的接受消息，则在接入所述第四类小区时发送所述RAN侧位置区域更新请求；所述第八指示用于指示所述用户设备禁止在所述非激活态下进行数据收发业务，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应；
    或，
    所述发送模块，还被配置为在驻留所述第二类小区时不发送所述RAN侧位置区域更新请求，且在接入所述第四类小区时发送所述RAN侧位置区域更新请求；
    其中，所述第四类小区是指预配置的允许在所述非激活态下工作的小区。
  76. 根据权利要求74或75所述的装置，其中，所述装置还包括：
    所述处理模块，还被配置为在保持所述非激活态时，不执行数据收发业务。
  77. 根据权利要求74或75所述的装置，其中，所述装置还包括：
    发送模块，被配置为在保持所述非激活态后，发送第二连接恢复请求，所述第二连接恢复请求用于请求根据所述用户设备在非激活态下的上下文恢复接入所述第二类小区。
  78. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备发送第二连接建立请求后，接收到携带有第九指示的拒绝接入消息；
    其中，所述第二连接建立请求用于请求将所述用户设备接入驻留小区，所述第九指示用于指示所述用户设备保持在所述非激活态。
  79. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备发送RAN侧位置区域更新请求后，接收到接受消息，所述接受消息携带有第十指示，所述第十指示用于指示所述用户设备禁止在 所述非激活态下执行数据收发业务；
    其中，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应。
  80. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备发送RAN侧位置区域更新请求后，接收到接受消息；根据所述接受消息成功进行RAN侧位置区域更新；
    其中，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后收到的响应，所述RAN侧位置区域更新请求未携带有预定标识，所述预定标识用于请求进入连接态。
  81. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    在所述用户设备发送携带有预定标识的RAN侧位置区域更新请求后，所述用户设备接收到包含拒绝指示的接受消息，根据所述接受消息成功进行RAN侧位置区域更新；
    其中，所述预定标识用于请求进入连接态，所述拒绝指示用于指示禁止所述用户设备进入连接态，所述接受消息是所述用户设备在发送所述RAN侧位置区域更新请求后接收到的响应。
  82. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第一预定次数时，所述用户设备等待第三预定时长后重新发送所述RAN侧位置区域更新请求并重新统计次数。
  83. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第二预定次数时，所述用户设备停止更新并等待所述用户设备需要接入驻留小区时重新发送所述RAN侧位置区域更新请求或发起第三连接恢复请求；
    其中，所述第三连接恢复请求用于请求根据所述非激活态下保存的上下文恢复接入所述驻留小区。
  84. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    在所述用户设备发送RAN侧位置区域更新请求后更新失败的连续次数达到第三预定次数时，所述用户设备停止更新并等待所述用户设备接入新的小区时重新发起所述RAN侧位置区域更新请求。
  85. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备在小区重选过程中接入到除目标网络之外的其它网络；
    其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
  86. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备在小区重选过程中接入到除目标网络之外的其它网络，且已接入到所述其它网络的时长在第四预定时长之内；
    其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
  87. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备在小区重选过程中接入第二预定网络；
    其中，所述第二预定网络是指预配置的允许保留所述用户设备在所述非激活态下的上下文的网络，且所述第二预定网络属于除目标网络之外的其它网络；
    其中，所述目标网络是支持所述用户设备在所述非激活态下工作的网络。
  88. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备保持所述非激活态的持续时长在第五预定时长之内；
    其中，所述第五预定时长是指预配置的允许所述用户设备保持所述非 激活态的最大时长。
  89. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备发起连接恢复失败。
  90. 根据权利要求67所述的装置，其中，所述第二预定条件，包括：
    所述用户设备在所述非激活状态下发送数据失败或接收数据失败。
  91. 一种状态转换装置，应用于用户设备中，所述装置还包括：
    处理模块，被配置为当用户设备处于非激活态且满足第三预定条件时，将所述用户设备从所述非激活态转换为连接态；
    其中，所述非激活态是位于所述连接态和空闲态之间的中间状态。
  92. 根据权利要求91所述的装置，其中，所述第三预定条件包括：
    所述用户设备发送RAN侧位置区域更新请求，接收到接受消息；
    所述用户设备根据所述接受消息成功进行RAN侧位置区域更新；
    其中，所述RAN侧位置区域更新请求携带有预定标识，所述预定标识用于请求进入所述连接态；所述接受消息用于指示接受所述用户设备的位置区域更新和允许所述用户设备进入所述连接态。
  93. 根据权利要求94所述的装置，其中，所述RAN侧位置区域更新请求或者所述RAN侧位置区域更新请求对应的完成消息中还携带有NAS层请求；
    所述处理模块还用于在用户设备发送RAN侧位置区域更新请求，接收到接受消息之前，通过所述用户设备的所述非接入层向接入层发送所述NAS层消息，或者，所述用户设备的所述非接入层指示所述接入层建立RRC连接，或者，所述用户设备的所述非接入层指示所述接入层恢复所述RRC连接。
  94. 根据权利要求92或93所述的装置，其中，
    所述接受消息携带有第十一指示，所述第十一指示用于指示允许所述 用户设备进入所述连接态；
    或，
    所述接受消息未携带有任何指示，所述接受消息用于隐式指示允许所述用户设备进入所述连接态。
  95. 一种用户设备，包括：
    处理器；
    配置为存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    当所述用户设备处于非激活态且满足第一预定条件时，将所述用户设备从所述非激活态转换为空闲态；
    其中，所述非激活态是位于连接态和所述空闲态之间的中间状态。
  96. 一种用户设备，包括：
    处理器；
    配置为存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    当所述用户设备处于非激活态且满足第二预定条件时，所述用户设备保持所述非激活态；
    其中，所述非激活态是位于连接态和空闲态之间的中间状态。
  97. 一种用户设备，包括：
    处理器；
    配置为存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    当所述用户设备处于非激活态且满足第三预定条件时，将所述用户设备从所述非激活态转换为连接态；
    其中，所述非激活态是位于所述连接态和空闲态之间的中间状态。
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