WO2018126883A1 - 信息交互方法、装置和计算机存储介质 - Google Patents

信息交互方法、装置和计算机存储介质 Download PDF

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Publication number
WO2018126883A1
WO2018126883A1 PCT/CN2017/117022 CN2017117022W WO2018126883A1 WO 2018126883 A1 WO2018126883 A1 WO 2018126883A1 CN 2017117022 W CN2017117022 W CN 2017117022W WO 2018126883 A1 WO2018126883 A1 WO 2018126883A1
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nas
connection
state
preset state
notification
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PCT/CN2017/117022
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English (en)
French (fr)
Inventor
牛丽
吴昱民
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中兴通讯股份有限公司
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Publication of WO2018126883A1 publication Critical patent/WO2018126883A1/zh

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    • 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 invention relates to the field of communications technologies, and in particular, to an information interaction method, apparatus, and computer storage medium.
  • the Long Term Evolution (LTE) system is mainly composed of three devices: a user equipment (User Equipment, UE), a core network (Core Network, CN), and an Evolved Node B (eNB).
  • the Mobility Management Entity (MME) in the core network is mainly responsible for signaling transmission, and the Serving GetWay (SGW) is mainly responsible for data transmission.
  • the interface between the UE and the eNB is Uu, and the interface between the eNB and the core network is S1.
  • the eNB and the UE must have a Uu connection.
  • the protocol architecture of the UE, the eNB, and the MME can be as shown in FIG. 2.
  • RRC Radio Resource Control
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • PHY Physical layer
  • AS Access Stratum
  • NAS Non Access Stratum
  • the AS and the NAS can interact.
  • the prior art proposes a light connection state.
  • the UE and the eNB may remain in the light connection state.
  • the UE performs interaction with the eNB only by performing a cell re-process or the like. In this way, the UE also achieves the purpose of power saving.
  • the eNB not only saves the information of the UE, but also maintains the S1 connection of the UE with the core network.
  • the NAS needs to save a good connection negotiated with the MME, and the AS no longer establishes a Uu connection. This is different from the previous AS and NAS states, which results in a difference between the state of the AS and the NAS.
  • the MME has information to be sent to the UE, but the AS between the current terminal and the base station is not connected or is idle. Therefore, how to send the NAS message sent by the MME to the NAS of the UE. It is an urgent problem to be solved in the prior art.
  • embodiments of the present invention are directed to providing an information interaction method, apparatus, and computer storage medium that at least partially solve the above problems.
  • the first aspect of the embodiment of the present invention provides an information interaction method, where the user equipment UE in the preset state includes:
  • the access layer AS of the UE receives a paging message sent by the base station;
  • the base station Receiving, by the base station, a preset information connection recovery message that is returned according to the connection recovery request;
  • the predetermined information is information that is sent by the mobility management entity MME to the UE;
  • the AS transmits the predetermined information to a non-access stratum NAS of the UE.
  • a second aspect of the embodiments of the present invention provides an information interaction method, which is applied to a base station, and includes:
  • connection recovery request a connection recovery message carrying the predetermined information to the UE.
  • a third aspect of the embodiments of the present invention provides an information interaction method, which is applied to a user equipment (User Equipment, UE) in a preset state, and includes:
  • the AS of the UE sends a predetermined notification to the NAS of the UE;
  • the NAS After receiving the predetermined notification, the NAS enters an idle state
  • TAU Tracking Area Update
  • a fourth aspect of the embodiments of the present invention provides an information interaction apparatus, which is applied to a UE in a preset state, and includes:
  • a first receiving unit configured to receive, by the access layer AS of the UE, a paging message sent by the base station;
  • a first sending unit configured to return a connection recovery to the base station based on the paging message, begging;
  • the first receiving unit is further configured to receive a connection recovery message that carries the predetermined information returned by the base station based on the connection recovery request; the predetermined information is information that is sent by the mobility management entity MME to the UE;
  • a first transmission unit configured to transmit, by the AS, the predetermined information to a non-access stratum NAS of the UE.
  • a fifth aspect of the embodiments of the present invention provides an information interaction apparatus, which is applied to a base station, and includes:
  • the second sending unit is configured to send a paging message to the UE when receiving the predetermined information that is sent by the mobility management entity to the user equipment UE in the preset state;
  • a second receiving unit configured to receive a connection recovery request returned by the UE after receiving the paging message
  • the second sending unit is further configured to send, to the UE, a connection recovery message carrying the predetermined information according to the connection recovery request.
  • a sixth aspect of the embodiments of the present invention provides an information interaction apparatus, which is applied to a preset user equipment UE, and includes:
  • a second transmission unit configured to: when the UE needs to access a cell that does not support the preset state, the AS of the UE sends a predetermined notification to the NAS of the UE;
  • An execution unit is configured to enter an idle state after the NAS receives the predetermined notification, and initiate a tracking area update TAU procedure after the NAS enters an idle state.
  • a seventh aspect of the embodiments of the present invention provides a computer storage medium storing computer executable instructions. After the computer executable instructions are executed, the first aspect, the second aspect, or the third aspect can be implemented. The method provided.
  • the information interaction method and device and the computer storage medium of the embodiment of the present invention when the base station receives the predetermined message sent by the MME to the UE that is in the light connection, the base station sends a paging message to the UE, and the UE and the base station corresponding to the trigger are triggered. Connection recovery between during the connection recovery process After the connection is restored, the predetermined information that is sent by the MME to the UE is carried in the connection recovery message and sent to the UE, so that the UE successfully receives the predetermined information from the network side, and further transmits the predetermined information to the UE after receiving the predetermined information by the AS of the UE.
  • the NAS thus completing the interaction of the NAS messages of the lightly connected UE.
  • the UE finds that the cell to be accessed does not support the preset state, and the AS of the UE sends a predetermined notification to the NAS, and after receiving the predetermined notification, the NAS enters an idle state, and the UE will The TAU procedure is performed after the NAS enters the idle state, so that the UE can access the cell that wants to access through the TAU procedure.
  • FIG. 1 is a schematic structural diagram of a communication system
  • FIG. 2 is a schematic structural diagram of another communication system
  • FIG. 3 is a schematic flowchart of a first information interaction method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart diagram of a second method for information interaction according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of a third information interaction method according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a first information interaction apparatus according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a second information interaction apparatus according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a third information interaction apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart diagram of a fourth information interaction method according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic flowchart diagram of a fifth information interaction method according to an embodiment of the present invention.
  • this embodiment provides an information interaction method, which is applied to a user equipment UE in a preset state, and includes:
  • Step S110 The access layer AS of the UE receives a paging message sent by the base station.
  • Step S120 return a connection recovery request to the base station based on the paging message
  • Step S130 Receive a connection recovery message carrying the predetermined information returned by the base station after receiving the connection recovery request; the predetermined information is information sent by the mobility management entity MME to the UE; that is, the base station receives After the connection recovery request is sent, the connection recovery message is sent to the UE, where the connection recovery message carries the predetermined information; that is, the base station is a connection recovery message sent based on the connection recovery request;
  • Step S140 The AS transmits the predetermined information to the NAS of the UE.
  • the UE is in a preset state, that is, the connection of the S1 port of the UE is maintained, and the connection of the Uu interface is disconnected, which is equivalent to the connection between the NAS of the UE and the MME, but the AS of the UE
  • the AS connection between the ASs with the base station e.g., eNB
  • the MME will think that the UE can also send a message as usual.
  • the UE may also receive the message sent by the MME.
  • the connection between the AS between the eNB and the UE is broken.
  • the base station sends a paging message to the UE.
  • the UE receives the paging message sent by the base station.
  • the paging message here is usually sent by broadcast or multicast.
  • the UE After receiving the message paging itself, the UE sends a connection recovery request to the base station.
  • the connection recovery request triggers a connection recovery between the eNB and the AS of the UE. It should be noted that the paging message is sent when the base station receives the predetermined information sent by the MME.
  • the preset state may include a lightly connected state and an inactive state derived from a lightly connected state.
  • the common feature of both the lightly connected state and the inactive state is that the S1 port remains connected and the Uu port is disconnected; the difference is that the UE in the lightly connected state may not be able to send data to the base station, and the non-active state may pass the unauthorized
  • the information is transmitted in other manners; of course, in specific implementations, the definitions of the lightly connected state and the inactive state are not limited thereto.
  • the receiving message will be received in the interaction message with the base station. To the predetermined information.
  • the UE in the preset state receives the predetermined information sent by the MME sent by the base station.
  • connection recovery request may be a Radio Resource Control (RRC) connection recovery request.
  • RRC Radio Resource Control
  • the step S130 may include: receiving a connection recovery message that is sent by the base station and carrying the predetermined information.
  • the predetermined information is directly carried in the connection recovery message.
  • the predetermined information may be a NAS Protocol Data Unit (PDU).
  • PDU NAS Protocol Data Unit
  • the UE receives the predetermined information while receiving the connection recovery message.
  • connection recovery message here is an RRC connection recovery message.
  • the UE may continue the connection recovery operation, and after completing the connection recovery operation, return a connection completion message to the eNB, and may terminate the operation of connection recovery because the predetermined information has been received.
  • the connection completion message is no longer sent to the eNB to keep the UE in the preset state.
  • the UE may perform cell reselection. If the UE is in the preset state, the NAS of the UE is in the non-idle state. If the cell that the UE reselects does not support the non-idle state, the AS of the UE needs to establish a connection with the AS of the eNB. A complete TAU process needs to be performed. As shown in FIG. 4, the method further includes:
  • Step S210 When the UE in the preset state needs to access the cell that does not support the light connection, the AS of the UE sends a predetermined notification to the NAS of the UE.
  • Step S220 After receiving the predetermined notification, the NAS enters an idle state
  • Step S230 After the NAS enters the idle state, the tracking area update TAU process is initiated.
  • the AS Determining the current when the AS of the UE passes the channel measurement and receives the broadcast information.
  • the AS sends a scheduled notification to the NAS.
  • the predetermined notification triggers the NAS to exit the non-idle state, returns to the idle state, and after returning to the idle state, the UE satisfies the condition of the TAU process execution, and the TAU process is further initiated.
  • the NAS After the NAS enters the idle state, it can access the cell that does not currently support the light connection by initiating the TAU procedure.
  • the predetermined notification may be: information specially set in the current application scenario that triggers the NAS to enter an idle state, and may also use existing information that can trigger the NAS to enter an idle state.
  • information specially set in the current application scenario that triggers the NAS to enter an idle state
  • the step S210 may include:
  • the AS When the UE needs to access a cell that does not support the preset state, the AS sends a connection recovery failure notification, a cell reselection failure notification, a reply to the idle state, or indicates that the cell does not support the NAS.
  • the notification of the preset state When the UE needs to access a cell that does not support the preset state, the AS sends a connection recovery failure notification, a cell reselection failure notification, a reply to the idle state, or indicates that the cell does not support the NAS.
  • the notification of the preset state When the UE needs to access a cell that does not support the preset state, the AS sends a connection recovery failure notification, a cell reselection failure notification, a reply to the idle state, or indicates that the cell does not support the NAS.
  • Each of the foregoing messages may trigger the NAS to exit the non-idle state, and the anger is to the idle state; however, the specific implementation is not limited to the foregoing manner.
  • the information interaction method shown in FIG. 3 and the information interaction method shown in FIG. 4 may be implemented separately or in combination.
  • the information interaction method shown in FIG. 3 is performed first.
  • the method described in FIG. 4 is performed.
  • the UE may also perform the information interaction method shown in FIG. 4, and then, when the UE accesses the cell that supports the light connection again, and receives the predetermined information sent by the MME in the preset state, the UE performs.
  • this embodiment provides an information interaction method, which is applied to a base station, and includes:
  • Step S310 When receiving the predetermined information sent by the mobility management entity to the user equipment UE in the preset state, sending a paging message to the UE;
  • Step S320 Receive a connection recovery request returned by the UE after receiving the paging message.
  • Step S330 Send a connection recovery message carrying the predetermined information to the UE according to the connection recovery request.
  • the base station herein may be the aforementioned eNB.
  • the base station receives the predetermined information sent to the UE currently in the preset state, the AS connection between the eNB and the UE is disconnected, so that a paging message is sent to establish a connection between the UE and the base station.
  • the predetermined information is sent to the UE during the establishment of the connection or after the connection is established.
  • the predetermined information is directly carried in the connection recovery message, on one hand, the delay of sending the predetermined information to the UE may be reduced, and the number of information interactions with the UE may be reduced, and whether the UE is Continuing the connection operation or remaining in the preset state may be determined by the UE or base station according to current needs.
  • the base station may further include a specific field in the connection recovery message, where the specific field may be used to indicate whether the UE continues to connect to the recovery operation. For example, when the specific field is the first value, the UE will abort the connection recovery operation to continue to remain in the preset state, and when it is the second value, the UE will continue the connection recovery operation and resume the connection with the eNB.
  • the embodiment provides an information interaction device, which is applied to a UE in a preset state, and includes:
  • the first receiving unit 110 is configured to receive, by the access layer AS of the UE, a paging message sent by the base station;
  • the first sending unit 120 is configured to return a connection recovery request to the base station based on the paging message
  • the first receiving unit 110 is further configured to: after the receiving, by the base station, the connection recovery request, the connection recovery message carrying the predetermined information; the predetermined information is sent by the mobility management entity MME to the UE Information;
  • the first transmission unit 130 is configured to transmit, by the AS, the predetermined information to the non-access stratum NAS of the UE.
  • the interaction device provided in this embodiment is used in a UE.
  • Both the first receiving unit 110 and the first sending unit 120 may correspond to a radio interface in the UE, that is, a transceiver antenna, and may be used by a base station, for example, an eNB to perform information interaction.
  • the first transmission unit 130 corresponds to a transmission channel inside the UE, for example, a bus interface, and can implement internal information transmission.
  • the predetermined information is any information that the MME sends to the UE in a preset state.
  • the preset state here is a state in which the Uu port of the UE is disconnected and the connection of the S1 port is maintained.
  • the device restores the connection with the base station based on the paging message sent by the base station, and receives the predetermined information sent by the MME from the base station after the connection is restored or after the connection is restored.
  • the embodiment further provides another information interaction apparatus, including:
  • the second transmission unit 210 is further configured to: when the UE in the preset state needs to access the cell that does not support the light connection, the AS of the UE sends a predetermined notification to the NAS of the UE; Referring to the foregoing technical solution, it will not be repeated here.
  • the executing unit 220 is configured to enter an idle state after the NAS receives the predetermined notification, and initiate a tracking area update TAU procedure after the NAS enters an idle state.
  • the second transmission unit here can also correspond to the internal communication interface of the UE, and can implement information interaction between the AS and the NAS.
  • the internal communication interface can be the internal communication bus.
  • the execution unit 220 can correspond to a processor or processing circuitry within the UE.
  • the processor can be a central processing unit, a microprocessor, a digital signal processor, an application processor, or a programmable array or the like.
  • the execution of the predetermined instruction by the processor or processing circuit will cause the NAS to exit the non-idle state, return to the idle state, and initiate a TAU procedure in order to access the current UE to access the cell that does not support the light connection.
  • the second transmission unit 210 is configured to send, when the UE needs to access a cell that does not support the preset state, the AS sends a connection recovery failure notification to the NAS, The cell reselection failure notification, the notification to the idle state, or the notification that the cell does not support the preset state.
  • the information transmitted by the second transmission unit 210 may be any one of the above information, and the predetermined notification transmitted may cause the NAS to enter an idle state and prompt the UE to send a TAU procedure.
  • the units included in FIG. 6 and FIG. 7 may belong to different information interaction devices or may belong to the same information interaction device structure.
  • the embodiment provides an information interaction apparatus, which is applied to a base station, and includes:
  • the second sending unit 310 is configured to send a paging message to the UE when receiving the predetermined information sent by the mobility management entity to the user equipment UE in the preset state;
  • the second receiving unit 320 is configured to receive a connection recovery request returned by the UE after receiving the paging message
  • the second sending unit 310 is configured to send, to the UE, a connection recovery message carrying the predetermined information according to the connection recovery request.
  • the information interaction device is applied to a device in a base station.
  • the second sending unit 310 and the second receiving unit 320 may be transceiver antennas corresponding to the base station.
  • the base station Upon receiving the predetermined information sent by the MME to the UE currently in the light connection, the base station will send a paging message to page the UE that needs to receive the predetermined information.
  • the corresponding UE receives the paging message, it sends a connection recovery request to the base station.
  • the base station may send the MME to the UE after the connection recovery process or after the connection is restored.
  • the predetermined information is sent to the UE.
  • the UE is the UE in the preset state
  • the preset state may be the foregoing lightly connected state or inactive state.
  • this example provides an information interaction method, including:
  • Step 11 The NAS transmission carries the NAS PDU. Specifically, the MME sends the NAS PDU to the eNB. The NAS PDU is sent to the UE that is in the light connection.
  • Step 12 The eNB sends a paging message to the UE.
  • Step 13 The UE sends an RRC connection recovery request to the eNB.
  • Step 14 The eNB sends an RRC connection recovery message to the UE, and carries the NAS PDU, where the NAS PDU is received by the foregoing MME;
  • Step 15 The AS of the UE transmits the NAS PDU to the NAS of the UE.
  • this example provides an information interaction method, including:
  • Step 21 The UE is reselected. If a cell that does not support the light connection is selected, the previous RRC connection and the S1 connection cannot be restored when the UE accesses the cell; step S22 is performed:
  • Step 22 The UE initiates a TAU procedure.
  • the AS of the UE Before initiating the TAU procedure, the AS of the UE notifies the NAS of the UE, and the UE returns to the idle state, and needs to initiate a TAU procedure. For example, when the RRC layer cell of the UE reselects a cell that does not support the light connection function, the UE AS returns to the idle state, and the RRC notifies the NAS that the notification content may be one or more of them: indicating that the NAS returns to the idle state. Or the cell indicating the AS selection does not support the light connection function, or the RRC recovery process fails, or the result of the cell reselection.
  • a seventh aspect of the embodiments of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions; after the computer executable instructions are executed, the information interaction method provided by the one or more technical solutions can be implemented. For example, one or more of the methods shown in FIGS. 3 to 5 and 9 to 10 may be used.
  • the computer storage medium may include: a removable storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like.
  • the calculation The machine storage medium may include: a non-transitory storage medium.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the above integration
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the base station when the base station receives the predetermined message sent by the MME to the UE that is in the light connection, the base station sends a paging message to the UE, and the UE corresponding to the trigger performs connection recovery and is connected. During the recovery process or after the connection is restored, the predetermined information that is sent by the MME to the UE is carried in the connection recovery message and sent to the UE. After receiving the predetermined information, the AS of the UE transmits the information to the NAS of the UE, so that the UE can receive from the network side.
  • the predetermined information sent by the MME is sent to the UE by using the connection recovery message, so that the UE can quickly obtain the predetermined information during the connection recovery process or after the connection is restored, and implement information interaction with the MME.
  • the industrial effect is easy to implement and can be widely used in industry.

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Abstract

本发明实施例公开了一种信息交互方法及装置，应用于处于预设态的用户设备UE中的方法包括：所述UE的接入层AS接收基站发送的寻呼消息；基于所述寻呼消息向所述基站返回连接恢复请求；基于所述基站在接收到所述连接恢复请求之后，返回的携带有预定信息的连接恢复消息；所述预定信息为移动管理实体MME发送给所述UE的信息；所述AS将所述预定信息传输给所述UE的NAS。本发明实施例还提供一种计算机存储介质。

Description

信息交互方法、装置和计算机存储介质
相关申请的交叉引用
本申请基于申请号为201710008159.1、申请日为2017年01月05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
本发明涉及通信技术领域，尤其涉及一种信息交互方法、装置和计算机存储介质。
背景技术
现有技术中长期演进系统(Long Term Evolution，LTE)主要由三个设备组成：用户设备(User Equipment，UE)、核心网(Core Network，CN)和基站(Evolved Node B，eNB)，其中，核心网中的移动管理实体(Mobility Management Entity，MME)主要负责信令的传输，服务网关(Serving GetWay，SGW)主要负责数据的传输。UE和eNB的接口为Uu，eNB与核心网的接口为S1。
通常，对于某个UE存在S1连接，eNB和UE必定存在Uu连接。
而UE、eNB和MME的协议架构可如图2。对于UE，无线资源控制层(Radio Resource Control，RRC)、分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)、无线连接控制(Radio Link Control，RLC)、媒体访问控制(Medium Access Control，MAC)和物理层(Physical Layer，PHY)均属于接入层(Access Stratum，AS)，而AS的高层为非接入层(Non Access Stratum，NAS)，AS和NAS可以进行交互。
对于某个UE，不存在Uu连接则AS和NAS都处于空闲状态。在未来通信系统中，终端数量增长很快，尤其是物联网的应用，会导致eNB需要和大量UE建立信令连接。一方面，这些信令连接会耗费很多空口资源，尤其是针对一些小数据包业务，与传统业务不同，这些业务不仅具有数据包小的特点，而且数据包的发送间隔很长。例如：微信业务。这些业务会在很长时间内一直占用空口资源；另一方面，大量的信令连接对eNB的处理能力和容量提出了很高的要求，这些信令处理会占用eNB的大量的处理时间，而且增加了eNB的硬件处理器和内存的成本。
为了减轻UE和eNB的信令负荷，现有技术提出了一种轻连接(light connection)状态。当UE没有数据传输的情况下，UE和eNB可保持在轻连接状态。在轻连接状态下，UE只有进行小区重新过程等过程才与eNB进行相关信息的交互。这样，UE也达到了省电的目的。而eNB不仅会保存UE的信息，还与核心网继续保持该UE的S1连接。这样，当UE在轻连接状态时，且UE有数据传输，只需重新建立UE和eNB的连接，就可恢复通信，也确保了业务的时延要求。
可见，UE在轻连接状态下，NAS需要保存与MME协商的好的连接，AS不再建立Uu连接，这与以前AS和NAS状态都不同，就导致了AS和NAS的状态之间的差异。然而在有一些情况下，MME有信息需要下发到UE，但是当前终端和基站之间的AS并未建立连接或处于闲置状态，故此时，如何将MME下发的NAS消息发送到UE的NAS是现有技术亟待解决的问题。
发明内容
有鉴于此，本发明实施例期望提供一种信息交互方法、装置和计算机存储介质，至少部分解决上述问题。
本发明的技术方案是这样实现的：
本发明实施例第一方面提供一种信息交互方法，预设态用户设备UE中，包括：
所述UE的接入层AS接收基站发送的寻呼消息；
基于所述寻呼消息向所述基站返回连接恢复请求；
接收所述基站基于所述连接恢复请求返回的携带有预定信息连接恢复消息；所述预定信息为移动管理实体MME发送给所述UE的信息；
所述AS将所述预定信息传输给所述UE的非接入层NAS。
本发明实施例第二方面提供一种信息交互方法，应用于基站中，包括：
接收到移动管理实体MME下发给预设态用户设备UE的预定信息时，向所述UE发送寻呼消息；
接收所述UE在接收到所述寻呼消息之后返回的连接恢复请求；
根据所述连接恢复请求向所述UE发送携带有所述预定信息的连接恢复消息。
本发明实施例第三方面提供一种信息交互方法，应用于处于预设态的用户设备(User Equipment，UE)中，包括：
当所述UE需要接入不支持所述预设态的小区时，所述UE的AS向所述UE的NAS发送预定通知；
所述NAS接收到所述预定通知之后，进入空闲状态；
在所述NAS进入空闲状态之后，发起跟踪区更新(Tracking Area Update，TAU)过程。
本发明实施例第四方面提供一种信息交互装置，应用于预设态的UE中，包括：
第一接收单元，配置为所述UE的接入层AS接收基站发送的寻呼消息；
第一发送单元，配置为基于所述寻呼消息向所述基站返回连接恢复请 求；
所述第一接收单元，还配置为接收所述基站基于所述连接恢复请求返回的携带有预定信息的连接恢复消息；所述预定信息为移动管理实体MME发送给所述UE的信息；
第一传输单元，配置为所述AS将所述预定信息传输给所述UE的非接入层NAS。
本发明实施例第五方面提供一种信息交互装置，应用于基站中，包括：
第二发送单元，配置为接收到移动管理实体下发给处于预设态的用户设备UE的预定信息时，向所述UE发送寻呼消息；
第二接收单元，配置为接收所述UE在接收到所述寻呼消息之后返回的连接恢复请求；
所述第二发送单元，还配置为根据所述连接恢复请求向所述UE发送携带有所述预定信息的连接恢复消息。
本发明实施例第六方面提供一种信息交互装置，应用于预设态用户设备UE中，包括：
第二传输单元，配置为当所述UE需要接入不支持所述预设态的小区时，所述UE的AS向所述UE的NAS发送预定通知；
执行单元，配置为所述NAS接收到所述预定通知之后，进入空闲状态；在所述NAS进入空闲状态之后，发起跟踪区更新TAU过程。
本发明实施例第七方面提供一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令；所述计算机可执行指令被执行后，能够实现第一方面，第二方面，或第三方面提供的方法。
本发明实施例的信息交互方法、装置和计算机存储介质，一方面，基站接收到MME发送给处于轻连接的UE的预定消息时，会向UE发送寻呼消息，这样的触发对应的UE与基站之间进行连接恢复，在连接恢复过程中 或连接恢复之后，将MME发送给UE的预定信息携带在连接恢复消息中发送给UE，从而UE成功的从网络侧接收到预定信息，并进一步由UE的AS接收到预定信息之后传输给UE的NAS，从而完成了处于轻连接的UE的NAS消息的交互。另一方面，UE在进行小区重选时，发现想要接入的小区不支持预设态，UE的AS会向NAS发送预定通知，NAS在接收到预定通知之后，会进入空闲状态，UE将在NAS进入空闲状态之后执行TAU过程，这样UE就可以通过TAU过程，接入到想要接入的小区。
附图说明
图1为一种通信系统的结构示意图；
图2为另一种通信系统的结构示意图；
图3为本发明实施例提供的第一种信息交互方法的流程示意图；
图4为本发明实施例提供的第二种信息交互方法的流程示意图；
图5为本发明实施例提供的第三种信息交互方法的流程示意图；
图6为本发明实施例提供的第一种信息交互装置的结构示意图；
图7为本发明实施例提供的第二种信息交互装置的结构示意图；
图8为本发明实施例提供的第三种信息交互装置的结构示意图；
图9为本发明实施例提供的第四种信息交互方法的流程示意图；
图10为本发明实施例提供的第五种信息交互方法的流程示意图。
具体实施方式
以下结合说明书附图及具体实施例对本发明的技术方案做进一步的详细阐述。
如图3所示，本实施例提供一种信息交互方法，应用于处于预设态的用户设备UE中，包括：
步骤S110：所述UE的接入层AS接收基站发送的寻呼消息；
步骤S120：基于所述寻呼消息向所述基站返回连接恢复请求；
步骤S130：接收所述基站在接收到所述连接恢复请求之后返回的携带有预定信息的连接恢复消息；所述预定信息为移动管理实体MME发送给所述UE的信息；即，基站在接收到连接恢复请求之后，会向所述UE发送连接恢复消息，该连接恢复消息中是携带有预定信息的；即所述基站是基于连接恢复请求发送的连接恢复消息；
步骤S140：所述AS将所述预定信息传输给所述UE的NAS。
在本实施例中所述UE处于预设态，即所述UE的S1口的连接保持，而Uu口的连接断开，相当于UE的NAS还保持与MME之间的连接，但是UE的AS与基站(例如，eNB)之间的AS之间的AS连接断开。这样的话，MME就会认为还可以照常给UE发送消息。这样的话，UE就还有可能接收到MME发送的消息。但是eNB与UE之间的AS之间的连接是断开的。当eNB接收到MME发送给当前处于轻连接的预定信息时，基站会向UE发送寻呼消息。故在本实施例中所述UE会接收到所述基站发送的寻呼消息。通常，这里的寻呼消息通常是通过广播方式或组播方式发送的。所述UE接收到寻呼自己的消息之后，会向基站发送连接恢复请求。该连接恢复请求会触发eNB和UE的AS之间的连接恢复。值得注意的是，所述寻呼消息为基站接收到MME发送的预定信息时发送的。
在本实施例中所述预设态可包括轻连接态及从轻连接态衍生出来的非激活态。轻连接态和非激活态的共同特征均是S1口保持连接，而Uu口连接断开；不同点在于所述轻连接态下的UE可能不能向基站发送数据，而非激活状态可能通过非授权等其他方式发送信息；当然，具体实现时，所述轻连接态和非激活态的限定不局限于此。
在本实施例中所述步骤S130中将会在与基站之间的交互消息中，接收 到所述预定信息。
如此，通过寻呼消息的发送，处于预设态的UE会接收到基站发送的MME发送的预定信息。
在本实施例中所述连接恢复请求可为无线资源控制(Radio Resource Control，RRC)连接恢复请求。
在本实施例中，所述步骤S130可包括：接收所述基站发送的携带有所述预定信息的连接恢复消息。
在本实施例中所述预定信息直接携带在连接恢复消息中。所述预定信息可为NAS协议数据单元(Protocol Data Unit，PDU)。这样的话，所述UE在接收所述连接恢复消息的同时，接收到所述预定信息。
这里的连接恢复消息为RRC连接恢复消息。
在接收到所述RRC连接恢复消息之后，所述UE可以继续连接恢复操作，在完成连接恢复操作之后，向eNB返回连接完成消息，由于已经接收到所述预定信息，也可以中止连接恢复的操作，不再向所述eNB发送连接完成消息，以保持UE继续处于预设态。
由于UE的移动性，UE可能会进行小区重选。由于UE当前处于预设态，UE的NAS是处于非空闲状态的，若UE重选的小区不支持非空闲状态，则所述UE的AS需要与eNB的AS之间建立连接，此时，就需要执行完整的TAU过程。如图4所示，所述方法还包括：
步骤S210：当处于预设态下的UE需要接入不支持所述轻连接的小区时，UE的AS向所述UE的NAS发送预定通知；
步骤S220：所述NAS接收到所述预定通知之后，进入空闲状态；
步骤S230：在所述NAS进入空闲状态之后，发起跟踪区更新TAU过程。
当所述UE的AS通过信道测量以及接收广播信息的方式，确定出当前 小区重选想要接入的小区，不支持轻连接时，则AS会向NAS发送预定通知。该预定通知触发NAS退出非空闲状态，返回到空闲状态，返回空闲状态之后，所述UE就满足TAU过程执行的条件，将进一步发起TAU过程。当NAS进入到空闲状态之后，通过发起TAU过程就能够接入到当前不支持轻连接的小区。
所述预定通知可以为：在当前应用场景中专门设置的触发所述NAS进入空闲状态的信息，也可以利用现有的能够触发NAS进入到空闲状态的信息。以下提供几种可实现方式：
所述步骤S210可包括：
当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送连接恢复失败通知、小区重选失败通知、回复到所述空闲状态的通知或指示小区不支持所述预设态的通知。
上述各个消息都可以触发所述NAS退出所述非空闲状态，既然怒到所述空闲状态；但是具体实现时不局限于上述方式。
图3所示的信息交互方法和图4所示的信息交互方法，可以分别实现，也可以结合实现。例如，先执行图3所示的信息交互方法，当UE需要接入不支持轻连接态或非激活态等预设态的小区时，执行图4所述的方法。当然，所述UE也可以先执行图4所示的信息交互方法，然后，当UE再次接入到支持轻连接的小区，并在预设态接收到所述MME发送的预定信息时，则执行图3所示的流程。
如图5所示，本实施例提供一种信息交互方法，应用于基站中，包括：
步骤S310：接收到移动管理实体下发给处于预设态的用户设备UE的预定信息时，向所述UE发送寻呼消息；
步骤S320：接收所述UE在接收到所述寻呼消息之后返回的连接恢复请求；
步骤S330：根据所述连接恢复请求向所述UE发送携带有所述预定信息的连接恢复消息。
这里的基站可为前述的eNB。基站接收到发送给当前处于预设态的UE的预定信息时，由于eNB与UE之间的AS连接断开，故将发送寻呼消息，促使所述UE与基站之间建立连接。在建立连接的过程中或建立连接之后，再将所述预定信息发送给UE。
在本实施例中直接将所述预定信息携带在所述连接恢复消息中，一方面可以减少预定信息发送到UE的延时，同时可以减少与UE之间的信息交互次数，所述UE是否是继续连接操作或保留在所述预设态，可以由所述UE或基站根据当前需求确定。例如，所述基站还可以在所述连接恢复消息包括特定字段，该特定字段可以用于指示所述UE是否继续连接恢复操作。例如，特定字段为第一值时，所述UE将中止连接恢复操作以继续保留在预设态，为第二值时，所述UE将继续连接恢复操作，恢复与eNB之间的连接。
如图6所示，本实施例提供一种信息交互装置，应用于处于预设态的UE中，包括：
第一接收单元110，配置为所述UE的接入层AS接收基站发送的寻呼消息；
第一发送单元120，配置为基于所述寻呼消息向所述基站返回连接恢复请求；
所述第一接收单元110，还配置为基于所述基站在接收到所述连接恢复请求之后，返回的携带有预定信息的连接恢复消息；所述预定信息为移动管理实体MME发送给所述UE的信息；
第一传输单元130，配置为所述AS将所述预定信息传输给所述UE的非接入层NAS。
本实施例提供的所述交互装置，用于UE中。所述第一接收单元110和所述第一发送单元120都可以对应于所述UE中的无线接口，即收发天线，可以用于基站，例如，eNB进行信息交互。
所述第一传输单元130对应于所述UE内部的传输通道，例如，总线接口，可以实现信息内部传输。
所述预定信息为所述MME发送给处于预设态的UE的任何信息。这里的所述预设态为UE的Uu口的断开且保持S1口的连接的状态。
在本实施例中所述装置会基于基站发送的寻呼消息，与基站恢复连接，在恢复连接的过程中或恢复连接之后，从基站接收MME发送给其的预定信息。
如图7所示，本实施例还提供另一种信息交互装置，包括：
第二传输单元210，还配置为当处于预设态的UE需要接入不支持所述轻连接的小区时，所述UE的AS向所述UE的NAS发送预定通知；这里的预设态可以参见前述技术方案，在此就不重复了。
执行单元220，配置为所述NAS接收到所述预定通知之后，进入空闲状态；在所述NAS进入空闲状态之后，发起跟踪区更新TAU过程。
这里的第二传输单元同样可对应于UE的内部通信接口，可实现AS和NAS之间的信息交互。所述内部通信接口可为所述内部通信总线。
所述执行单元220可对应于所述UE内的处理器或处理电路。所述处理器可为中央处理器、微处理器、数字信号处理器、应用处理器或可编程阵列等。所述处理器或处理电路通过预定指令的执行，将会促使NAS退出非空闲状态，返回到空闲状态，并发起TAU过程，以便接入当前UE想要接入到不支持轻连接的小区中。
在一些实施例中，所述第二传输单元210，配置为当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送连接恢复失败通知、 小区重选失败通知、回复到所述空闲状态的通知或指示小区不支持所述预设态的通知。第二传输单元210传输的信息可为上述信息的任意一种，总之传输的预定通知，可以促使NAS进入空闲状态，并促使UE发送TAU过程。
图6和图7中包括的单元，可以属于不同的信息交互装置的结构，也可以属于同一个信息交互装置的结构。
如图8所示，本实施例提供一种信息交互装置，应用于基站中，包括：
第二发送单元310，配置为接收到移动管理实体下发给处于预设态的用户设备UE的预定信息时，向所述UE发送寻呼消息；
第二接收单元320，配置为于接收所述UE在接收到所述寻呼消息之后返回的连接恢复请求；
所述第二发送单元310，配置为根据所述连接恢复请求向所述UE发送携带有所述预定信息的连接恢复消息。
在本实施例中提供的信息交互装置，为应用于基站中的装置。所述第二发送单元310和所述第二接收单元320可为对应于基站的收发天线。基站在接收到MME发送给当前处于轻连接的UE的预定信息时，将发送寻呼消息，寻呼需要接收所述预定信息的UE。当对应的UE接收到所述寻呼消息会向基站发送连接恢复请求，此时所述基站可以通过后续信息的发送，可以在连接恢复过程中或连接恢复后，将MME发送给所述UE的预定信息发送给所述UE。
在本实施例中所述UE为处于所述预设态的UE，所述预设态可为前述的轻连接态或非激活态。
以下结合下列任何实施例提供几个具体示例：
示例1：
如图9所示，本示例提供一种信息交互方法，包括：
步骤11：NAS传输，携带有NAS PDU，具体为：MME向eNB发送NAS PDU；该NAS PDU为发送给处于轻连接的UE的。
步骤12：eNB向UE发送寻呼消息；
步骤13：UE向eNB发送RRC连接恢复请求；
步骤14：eNB向UE发送RRC连接恢复消息，携带NAS PDU，这里的NAS PDU为前述从MME接收的；
步骤15：UE的AS将NAS PDU传输给UE的NAS。
示例3：
如图10所示，本示例提供一种信息交互方法，包括：
步骤21：UE小区重选，若当前选择了一个不支持轻连接的小区，则UE接入到该小区时，就无法恢复之前的RRC连接和S1连接；将执行步骤S22：
步骤22：UE发起TAU过程。
在发起TAU过程之前，UE的AS通知UE的NAS，UE恢复到空闲状态，需要发起TAU过程。例如，当UE的RRC层小区重选了一个不支持轻连接功能的小区，UE AS回到空闲态，并且RRC通知NAS，通知内容可以是其中的一种或者几种：指示NAS回到空闲态，或者指示AS选择的小区不支持轻连接功能，或者RRC恢复过程失败，或者小区重选的结果等。
本发明实施例第七方面提供一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令；所述计算机可执行指令被执行后，能够实现前述一个或多个技术方案提供的信息交互方法，例如，可如图3至图5及图9至图10所示方法中的一个或多个。
所述计算机存储介质可包括：移动存储设备、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。所述计算 机存储介质可包括：非瞬间存储介质。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个处理模块中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。
工业实用性
本发明实施例公开的技术方案，当基站接收到MME发送给处于轻连接的UE的预定消息时，会向UE发送寻呼消息，这样的触发对应的UE与基站之间进行连接恢复，在连接恢复过程中或连接恢复之后，将MME发送给UE的预定信息携带在连接恢复消息中发送给UE，由UE的AS接收到预定信息之后传输给UE的NAS，这样UE就能够从网络侧接收到MME发送的预定信息，并通过连接恢复消息下发所述预定信息给UE，方便UE在连接恢复过程中或连接恢复后，快速的获取到所述预定信息，实现与MME的信息交互，具有积极的工业效果，且具有实现简便的特点，可利用工业上的广泛运用。

Claims (17)

  1. 一种信息交互方法，其中，预设态用户设备UE中，包括：
    所述UE的接入层AS接收基站发送的寻呼消息；
    基于所述寻呼消息向所述基站返回连接恢复请求；
    接收所述基站基于所述连接恢复请求返回的携带有预定信息的连接恢复消息；所述预定信息为移动管理实体MME发送给所述UE的信息；
    所述AS将所述预定信息传输给所述UE的非接入层NAS。
  2. 根据权利要求1所述的方法，其中，
    所述UE为处于预设态的UE；
    所述预设态为：所述UE的Uu口连接断开且S1口连接保持的状态。
  3. 根据权利要求1或2所述的方法，其中，
    所述UE处于预设态；
    所述方法还包括：
    当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送预定通知；
    所述NAS接收到所述预定通知之后，进入空闲状态；
    在所述NAS进入空闲状态之后，发起跟踪区更新TAU过程。
  4. 根据权利要求3所述的方法，其中，
    所述当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送预定通知，包括：
    当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送连接恢复失败通知、小区重选失败通知、回复到所述空闲状态的通知或指示小区不支持所述预设态的通知。
  5. 一种信息交互方法，应用于基站中，包括：
    接收到移动管理实体MME下发给预设态用户设备UE的预定信息时，向所述UE发送寻呼消息；
    接收所述UE在接收到所述寻呼消息之后返回的连接恢复请求；
    根据所述连接恢复请求向所述UE发送携带有所述预定信息的连接恢复消息。
  6. 根据权利要求5所述的方法，其中，
    所述接收到移动管理实体下发给用户设备UE的预定信息时，向所述UE发送寻呼消息，包括：
    接收MME下发给处于预设态的UE的预定信息时，向所述UE发送寻呼消息，其中，所述预设态为：所述UE的Uu口连接断开且S1口连接保持的状态。
  7. 一种信息交互方法，应用于处于预设态的用户设备UE中，包括：
    当所述UE需要接入不支持所述预设态的小区时，所述UE的AS向所述UE的NAS发送预定通知；
    所述NAS接收到所述预定通知之后，进入空闲状态；
    在所述NAS进入空闲状态之后，发起跟踪区更新TAU过程。
  8. 根据权利要求7所述的方法，其中，
    所述当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送预定通知，包括：
    当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送连接恢复失败通知、小区重选失败通知、回复到所述空闲状态的通知或指示小区不支持所述预设态的通知。
  9. 一种信息交互装置，应用于预设态的用户设备UE中，包括：
    第一接收单元，用于所述UE的接入层AS接收基站发送的寻呼消息；
    第一发送单元，配置为基于所述寻呼消息向所述基站返回连接恢复请 求；
    所述第一接收单元，还配置为接收所述基站基于所述连接恢复请求返回的携带有预定信息的连接恢复消息；所述预定信息为移动管理实体MME发送给所述UE的信息；
    第一传输单元，用于所述AS将所述预定信息传输给所述UE的非接入层NAS。
  10. 根据权利要求9所述的装置，其中，
    所述UE为处于预设态的UE；
    所述预设态为UE的Uu口的连接断开且S1口的连接保持的连接状态。
  11. 根据权利要求9或10所述的装置，其中，
    所述装置，还包括：
    第二传输单元，还配置为当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送预定通知；
    执行单元，配置为所述NAS接收到所述预定通知之后，进入空闲状态；在所述NAS进入空闲状态之后，发起跟踪区更新TAU过程。
  12. 根据权利要求11所述的装置，其中，
    所述第二传输单元，配置为当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送连接恢复失败通知、小区重选失败通知、回复到所述空闲状态的通知或指示小区不支持所述预设态的通知。
  13. 一种信息交互装置，应用于基站中，包括：
    第二发送单元，配置为接收到移动管理实体下发给处于预设态的用户设备UE的预定信息时，向所述UE发送寻呼消息；
    第二接收单元，配置为接收所述UE在接收到所述寻呼消息之后返回的连接恢复请求；
    所述第二发送单元，配置为根据所述连接恢复请求向所述UE发送携带 有所述预定信息的连接恢复消息。
  14. 根据权利要求13所述的装置，其中，所述UE为处于预设态的UE；
    所述预设态为：所述UE的Uu口连接断开且S1口连接保持的状态。
  15. 一种信息交互装置，应用于预设态用户设备UE中，包括：
    第二传输单元，配置为当所述UE需要接入不支持所述预设态的小区时，所述UE的AS向所述UE的NAS发送预定通知；
    执行单元，配置为所述NAS接收到所述预定通知之后，进入空闲状态；在所述NAS进入空闲状态之后，发起跟踪区更新TAU过程。
  16. 根据权利要求15所述的装置，其中，
    所述第二传输单元，配置为当所述UE需要接入不支持所述预设态的小区时，所述AS向所述NAS发送连接恢复失败通知、小区重选失败通知、回复到所述空闲状态的通知或指示小区不支持所述预设态的通知。
  17. 一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令；所述计算机可执行指令被执行后，能够实现权利要求1至4，或，权利要求5至6，或权利要求7至8任一项提供的方法。
PCT/CN2017/117022 2017-01-05 2017-12-18 信息交互方法、装置和计算机存储介质 WO2018126883A1 (zh)

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