WO2007051423A1 - Systeme et procede de communication pour l’entree et la sortie du mode repos d’un terminal - Google Patents
Systeme et procede de communication pour l’entree et la sortie du mode repos d’un terminal Download PDFInfo
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- WO2007051423A1 WO2007051423A1 PCT/CN2006/002959 CN2006002959W WO2007051423A1 WO 2007051423 A1 WO2007051423 A1 WO 2007051423A1 CN 2006002959 W CN2006002959 W CN 2006002959W WO 2007051423 A1 WO2007051423 A1 WO 2007051423A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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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
Definitions
- the present invention relates to a mobile communication technology, and more particularly to a communication method and system for a terminal to enter and exit an idle mode in a mobile communication system.
- Idle mode is a terminal mode of operation in a mobile broadband wireless access system defined by the IEEE 802.16e standard.
- the terminal In the idle mode, the terminal can move in a set area, receive the downlink broadcast service message every certain period, and the system notifies the terminal whether there is downlink service transmission through the broadcast message, and the terminal does not have to go to the roaming process in this area.
- the base station of the cell registers. At the same time, when the terminal roams to different cells, it is not necessary to perform operations such as handover, thereby saving power and air interface resources of the terminal.
- multiple base stations form a paging group.
- the purpose of the paging group is to form a continuous area. In this area, the terminal does not need to send uplink services, but the downlink paging channel can be used to determine whether the network side is There is a downlink service sent to it.
- the paging group must be large enough to ensure that most terminals remain within the same paging group for a long period of time, avoiding frequent location updates; and the paging group is small enough. To ensure that the paging of the terminal in a paging group is reasonable.
- the terminal may request to enter the idle mode by sending a message.
- the serving base station may also actively request the terminal to enter the idle mode by sending a message.
- WiMAX Worldwide Interoperability for Microwave Access
- Figure 1 it is a schematic diagram of the structure of the WiMAX paging network.
- the paging controller is a control.
- the entity is a logical entity in the current WiMA network architecture, and is closely related to another logical entity-authenticator (possibly implemented in the same physical network element as the authenticator) . It may be located on the WiMAX network
- the network element-access service network gateway (ASN GW) may also be located in another independent physical network element.
- a location register is needed to store state information, paging information, and service flow related information of the terminal.
- a paging controller logical entity corresponds to a location register logical entity, and two logical entities are implemented within the same physical network element.
- the currently mentioned authenticators as well as paging controllers and location registers are a logical functional entity that is a functional part of the access service network gateway.
- the authenticator and the paging controller are unchanged, and the anchor authenticator and anchor of the terminal key information are saved after the terminal enters the idle mode.
- the paging controller is constant, although physically, in idle mode, the terminal may move to other paging controllers and the physical jurisdiction of the authenticator; and if paging controllers and authentication are considered
- the terminal can save to the paging controller and the authenticator as long as the terminal interacts with the physical entity or The message is obtained, thereby completing the related management process of the terminal in the idle mode.
- anchoring entities such as an anchor Authenticator and an anchor paging controller. Controller ), Anchor Data Path Function, Anchor Foreign Agent, Anchor SFA Entity, Dynamic Host Configuration Protocol Relay (DHCP Proxy) Entity, Anchor Billing Client End (Anchor Accounting Client) and so on.
- anchoring entities such as an anchor Authenticator and an anchor paging controller. Controller ), Anchor Data Path Function, Anchor Foreign Agent, Anchor SFA Entity, Dynamic Host Configuration Protocol Relay (DHCP Proxy) Entity, Anchor Billing Client End (Anchor Accounting Client) and so on.
- the above functional entities may be caused by the different functional timings of the functional entities serving the respective terminals MS as they move with the terminal, respectively, resulting in the above-mentioned functional entities serving the specific terminal MS, such as an anchor Authenticator (Anchor Authenticator).
- the external proxy FA, Anchor SFA, Anchor PMIP Client, etc. may exist in different access service network gateways ASN-GW, so in one activity, it will involve Interaction between different access service network gateways ASN-GW
- the functional entities that provide services for it exist in each access service network ASN.
- the functional entities that provide services for it exist in the Serving Access Service Network (Serving ASN).
- the functional entity migration refers to the migration of functional entities that provide services for the MS, that is, the migration of the anchor functional entities of the MS mentioned in the present invention, not the functional entities themselves, that is, although each access service network has The same functional entity, but at the moment it may not serve the MS.
- the result of the migration may result in the distribution of functional entities serving the MS within multiple access service networks.
- the functional entity is implemented in the same physical entity.
- the base station is physically connected to the new authenticator and the new paging controller and foreign agent, but the anchor paging controller, the anchor authenticator, the anchor external proxy, and the anchor data.
- the channel function and the anchor agent mobile node are not in the same network physical entity.
- the access service network gateway 300 shown in the figure is the current access service network gateway of the terminal, the access service network gateway 500 is the anchor external agent of the terminal, and the access service network gateway 400 is the anchor page of the terminal.
- the terminal When the terminal enters the idle mode, it needs to send the information to the anchor paging controller, and then the anchor paging controller finds the location register associated with the ⁇ 1 to save the information, so that the terminal is in idle mode, at a certain base station.
- the anchor paging controller When the location update is performed, or when the idle mode is exited, it is necessary to know the anchor paging controller, the anchor right holder, the anchor data channel function body, and the anchor external proxy message specifically for the terminal service, thereby going to the corresponding entity. Complete the corresponding function. For example, when performing location update, it is necessary to obtain key information from the anchoring party for verifying the validity of the current location update message; when exiting the idle mode, it is necessary to obtain the corresponding session letter from the anchor paging controller/location register.
- the information includes the information of the anchor external agent, the anchor data channel function, and the anchor agent mobile node, thereby completing the establishment of the number corresponding channel of the terminal.
- the above prior art solution does not guarantee that the terminal accurately acquires the above information when entering or exiting the idle mode.
- the anchor data channel function mentioned above is usually located in the same physical entity as the anchor external agent, and sometimes the concept of the two logical entities is not separately mentioned, but only the concept of the anchor external proxy or the anchor data channel function. Summary of the invention
- the embodiment of the present invention provides a communication method for a terminal idle mode when the anchor function entity to which the terminal belongs is not in the same physical entity, and a corresponding communication system, which is used to solve the problem in the prior art when the terminal is in the idle mode.
- the problem that the terminal accurately acquires the anchor function entity information when entering or exiting the idle mode cannot be guaranteed.
- a communication method for a terminal to enter an idle mode including:
- the service access service network gateway sends the anchor function entity information serving the terminal to the anchor function entity information storage unit for storage.
- an idle mode triggering unit configured to trigger the terminal to enter an idle mode process
- the anchor function entity information sending unit is located at the service access service network gateway, and is configured to send the anchor function entity information serving the terminal to the anchor function entity information storage unit to save;
- the anchor function entity information storage unit is configured to save the anchor function entity information of the terminal.
- a communication method for a terminal to exit an idle mode including:
- the serving base station obtains the terminal session information from the access service network gateway where the anchor paging controller of the terminal is located, where the session information carries the terminal anchor function entity information;
- the serving base station establishes a service transmission channel of the terminal to the home agent according to the terminal session information.
- the idle mode triggering unit is used to trigger the terminal to exit the idle mode process and perform network reentry
- the terminal session information acquiring unit is located at the serving base station, and is configured to acquire terminal session information from the access service network gateway where the anchor paging controller of the terminal is located, where the session information carries terminal anchor function entity information;
- the serving base station establishes a service transmission channel of the terminal to the home agent according to the terminal session information.
- FIG. 2 is a flowchart of a processing method for a network terminal to enter an idle mode according to an embodiment of the present invention
- FIG. 3 is a flowchart of a specific example of a terminal entering an idle mode according to an embodiment of the present invention
- FIG. 4 is a communication system of a terminal entering an idle mode according to an embodiment of the present invention
- FIG. 5 is a flowchart of a processing method for a network terminal to exit an idle mode according to the present invention
- FIG. 6 is a flowchart of a specific example of a terminal exiting an idle mode according to an embodiment of the present invention
- FIG. 7 is a flowchart of a terminal exiting an idle mode according to an embodiment of the present invention
- the access service network there are network elements such as an access service network gateway 300, an access service network gateway 400, and an access service network gateway 500, each network element.
- network elements such as an access service network gateway 300, an access service network gateway 400, and an access service network gateway 500, each network element.
- the terminal 100 actively requests to enter the idle mode on the serving base station 200, or the serving base station 200 indicates that the terminal enters the idle mode, the terminal 100 and the serving base station 200, the serving base station 200, and the back-end network element are accessed.
- the terminal Message interaction between the service network gateways 300, Notifying the paging controller on the access service network gateway 400 network element, the terminal enters the idle mode, and stores the state information, paging information, and service flow information of the terminal in the location register of the access service network gateway 400 network element.
- the terminal may request information to be reserved when the idle mode request message sent to the serving base station 200 enters the idle mode, and the serving base station 200 may also set similar information in the idle mode request response message to notify the terminal 100 of the location.
- the relevant information retained in the register is notified to the terminal by the identity of the paging controller.
- it is required to release the R4 interface between the corresponding access service network gateway network element and the R6 interface between the base station and the access service network gateway network element.
- the information includes information such as an anchor authenticator, an anchor external proxy, an anchor location register, an anchor paging controller, an anchor proxy mobile node, an anchor service flow authorization entity, and an anchor data channel function, which may be collectively referred to in the solution of the present invention.
- the anchor function entity information of the terminal is unique. Therefore, as long as the information can be correctly found, the correct addressing can be achieved and the corresponding operation can be completed.
- the information includes information such as an anchor authenticator, an anchor external proxy, an anchor location register, an anchor paging controller, an anchor proxy mobile node, an anchor service flow authorization entity, and an anchor data channel function, which may be collectively referred to in the solution of the present invention.
- the anchor function entity information of the terminal may be collectively referred to in the solution of the present invention.
- the current serving base station always knows the anchor authenticator identification information of the terminal, because the terminal enters the normal service communication in the specific network service area, and the message exchange with the current serving base station occurs, so the current
- the serving base station knows the information such as the anchor authenticator identity, and when the handover occurs during the terminal mobile, the information is transmitted to the new base station as part of the terminal's session information, so the current service of the terminal before entering the idle mode
- the base station always knows the anchor authenticator identification information that serves the terminal.
- FIG. 2 of the specification it is a flowchart of a processing method for the terminal to enter an idle mode, and the steps specifically include:
- Step 101 trigger the terminal to enter an idle mode process.
- the process of entering the idle mode can be triggered in two ways: by the terminal side triggering: sending the registration request message to the serving base station to trigger the terminal to enter the idle mode process; Through the network side triggering, the network side serving base station sends a request message to the terminal, and actively requests the terminal to enter the idle mode.
- Step 102 The serving base station sends the authentication key and the context to the anchor authenticator according to the known anchor identity information of the terminal, and simultaneously accesses the session information of the terminal maintained by the terminal to the service access service network.
- the gateway is saved to the anchor paging controller, and the terminal session information includes CID, SAID, SFID, and the like;
- Step 103 The service access service network gateway sends the anchor function entity information serving the terminal to the anchor function entity information storage unit for storage.
- the identifier of the anchor authenticator, the identifier of the anchor external proxy, the anchor proxy mobile node, the anchor service flow authorization entity, and the identifier of the anchor data channel function body respectively refer to an anchor authenticator, an anchor external proxy, an anchor proxy mobile node, The IP address of the physical network element where the anchor service flow authorization entity and the anchor data channel function are located, or the MAC address or network identifier.
- the anchor function entity information storage unit may be an anchor paging controller or an anchor location register.
- the process of the anchor paging controller storing the anchor function entity information is as follows:
- the serving base station provides access to the anchor paging controller through a relay paging controller located in the service access service network gateway.
- the network gateway forwards the anchor function entity information; and stores the anchor function entity information in an anchor paging controller.
- the anchor paging controller can further transmit the obtained terminal security context to the anchor authenticator.
- the process of saving the anchor function entity information by the anchor paging controller may also be as follows:
- the service access service network gateway After the serving base station receives the idle mode request message, the service access service network gateway stores the anchor function entity information by using an anchor external proxy;
- the access service network gateway where the anchor external agent is located to the access service network where the anchor paging controller is located
- the network gateway forwards the anchor function entity information; and stores the anchor function entity information in an anchor paging controller.
- the anchor paging controller can further send the obtained terminal security context to the anchor authenticator for storage.
- the anchor external agent also records the identification information of the anchor paging controller, and/or records the status information of the terminal entering the idle mode, that is, whether the recording terminal is currently in the idle mode state so as to be correctly addressed.
- the authentication key and the context of the terminal also belong to the session information of the terminal, and need to be saved to the anchor authenticator after the terminal enters the idle mode, so that the subsequent terminal performs location update in the idle state or subsequently exits the idle mode. , need to get here to obtain these authentication keys and context information used to verify the legitimacy of face-related management messages.
- the anchor authenticator identifier, and/or the anchor foreign agent, and/or the anchor proxy mobile node, and/or the anchor service flow authorization entity, and/or the anchor data channel function identifier information may also be searched by the anchor.
- the call controller finds the corresponding anchor location register and saves the above information from the anchor location register.
- the serving base station receives the idle mode request message after the terminal enters the idle mode request message, and after verifying the validity of the request message,
- the weight key and the context, and/or anchor function entity information are sent to the physical network element where the anchor authenticator and the anchor paging controller are located.
- FIG. 3 of the specification it is a specific example flow chart of the terminal entering the idle mode. This example omits some functional units that are not directly applied.
- the idle mode entry request is initiated by the terminal, and the service access service is provided.
- the network gateway sends the anchor function entity information serving the terminal to the anchor function entity
- the information storage unit saves the completion, and the anchor paging controller replies to the idle mode entry response message to the service access monthly service where the relay paging controller is located.
- the message carrying a paging parameter that needs to inform the idle mode terminal and the anchor paging controller identifier of the terminal; and further forwarding to the serving base station; after the serving base station replies to the terminal idle mode entry response message, the serving base station will give the message After the service of the paging controller is accessed, the service network gateway replies to the idle mode and enters the confirmation.
- the message carries the latest CMAC-Key-Count updated by the base station, and the service access service network gateway further forwards the context to the anchor authenticator for saving, and may be forwarded by the anchor paging controller during the process, and the anchor authenticator According to the CMAC check result, it is decided whether to update CMAC_KEY_COUNT.
- the terminal corresponding to the communication method in which the terminal enters the idle mode enters the idle mode communication system.
- the terminal accesses the network side through the serving base station, and the system includes:
- the first triggering unit 110 is configured to trigger the terminal to enter the idle mode process.
- the incoming idle mode triggering unit 110 may be located at the terminal 100 or may be located at the monthly base station 200 of the network side.
- the first sending unit 310 is located in the service access service network, and is configured to be used by the access service network gateway 300 to send the anchor function entity information serving the terminal to the anchor function entity information storage unit for storage;
- the first storage unit is configured to save anchor function entity information of the terminal.
- the first storage unit is an anchor paging controller or an anchor location register.
- an anchor paging controller is taken as an example for description.
- the anchor authenticator 410 and the anchor paging controller 420 serving the terminal are located in the same access service network gateway.
- the invention is further provided in the system:
- the verification unit 210 is located at the serving base station 200, and is configured to verify the validity of the request message after the serving base station 200 receives the idle mode request message from the terminal 100.
- the authentication key and context sending unit 220 is located at the serving base station 200, and is configured to save the authentication key and the context for the terminal 100 to the physical network element where the anchor authenticator 410 and the anchor paging controller 420 are located.
- the forwarding unit 511 is located at the access service network gateway 500 where the anchor external proxy 510 is located, and is used to forward the anchor stored by the anchor service proxy gateway 510 to the access service network gateway 400 where the anchor paging controller 420 is located.
- Functional entity information The anchor paging controller 420 receives the anchor function entity information and stores it;
- the system also includes:
- a recording unit 512 is located at the anchor external agent 510 for recording identification information of the anchor paging controller, and/or recording status information of the terminal entering the idle mode.
- the anchor function entity identification information saved in the anchor paging controller needs to be returned to the service connection service network entity connected to the terminal when the terminal exits the idle mode, including the serving base station and/or the service connection. Serving the network gateway; thereby completing the communication connection between the terminal service connection service network and each anchor network after the terminal exits the idle mode.
- a flowchart of a processing method for the terminal to exit the idle mode includes the following steps:
- Step 201 trigger the terminal to exit the idle mode process, and perform network reentry
- This step can be triggered by the terminal or triggered by the network.
- This embodiment uses terminal triggering.
- the terminal sends an access request message to the serving base station, and requests to exit the idle mode to perform network re-entry.
- the message carries the anchor paging controller identification information; and the terminal according to the current primary management key and the current base station identifier. Regenerating the authentication key and its context, so as to carry a hash-based message verification code in the access request message;
- Step 202 After receiving the access request message, the serving base station determines whether it owns the authentication key of the terminal and its context information, and can be used to verify the validity of the received access request message, and if so, execute Step 204; Otherwise, step 203 is performed;
- Step 203 The serving base station, according to the obtained information of the anchor authenticator serving the terminal, requests the anchor authenticator to authenticate the key and its context through the service access service network gateway, and is used to verify the received The validity of the access request message; after receiving the authentication key and its context request, the anchor authenticator finds the primary session key and the paired master key information of the terminal according to the terminal identification information, and according to the current a service base station identifier, generating an authentication key and a context for the terminal, and transmitting the message to the terminal by using an authentication key;
- Step 204 The serving base station verifies the validity of the access request message according to the authentication key of the terminal and its context information. If the information is legal, step 205 is performed; otherwise, the response is determined to be illegal. Information
- Step 205 The serving base station sends a session information request message of the terminal to the access service network gateway where the anchor paging controller is located through the service access service network gateway.
- Step 206 After receiving the session information request message of the terminal, the anchor paging controller finds the location register information associated with the anchor paging controller, and goes to the location register to obtain the session information of the terminal; and passes the terminal session information.
- the requested response message is returned to the terminal service access service network gateway; the response message includes anchor anchor function entity information and/or terminal session information of the terminal.
- the anchor function entity information of the terminal may include an anchor authenticator identifier, and/or an anchor external proxy identifier, and/or an anchor proxy mobile node identifier,
- the session information of the terminal may include a CID, an SFID, and QoS information of the service flow.
- Step 207 After receiving the session information of the terminal, the service access service network gateway retains related information, and sends relevant information required by the base station to the serving base station; the service access service network gateway retains anchor function entity information and/or Terminal session information.
- the related information required by the base station includes an anchor identifier, and/or a CID owned by the terminal, and/or an SFID owned by the terminal, and/or QoS information of a service flow owned by the terminal;
- Step 208 After the serving base station permits the terminal to access, establish a service transmission channel of the terminal to the home agent; and include a data bearer channel between the serving base station and the service access service network gateway, and a service access service network gateway and an anchor access service network.
- the channel between the gateways the specific process is as follows:
- the serving base station sends a data channel setup request message to the service access service network gateway, requesting to establish a data bearer channel between the serving base station and the service access service.
- the network carries the identifier of the access service network gateway where the anchor external proxy is located. And/or anchor agent mobile node identity;
- the service access service network gateway sends a data channel establishment request message to the access service network gateway where the anchor external proxy is located, and requests to establish a data bearer channel for the terminal between the two;
- the access service network gateway where the anchor external proxy is located replies to the data channel setup response message to the service access service network gateway, and the service access service network gateway replies to the serving base station data channel setup response message to the serving base station;
- the serving base station replies to the response message of the terminal exiting the idle mode request, and carries the hash-based message verification code, and completes the network re-entry process of the air interface by interacting with the terminal according to the format defined by the IEEE 802.16e protocol;
- the serving base station replies to the data channel setup confirmation message to the service access service network gateway, and simultaneously accesses the service network gateway reply data channel establishment confirmation message to the anchor foreign agent.
- the process of establishing the data transmission channel of the terminal to the home agent further includes establishing an anchor external agent and a home agent.
- the data channel the specific process is as follows:
- the anchor external agent sends an anchor external proxy and a home agent channel establishment request message to the anchor proxy mobile node according to the anchor proxy mobile node identifier stored therein;
- the anchor agent mobile node After receiving the request message, the anchor agent mobile node performs mobile IP registration for the terminal, and establishes a data channel between the anchor external agent and the home agent.
- the terminal saves the anchor function entity information such as the anchor authenticator, the anchor external proxy, and the anchor proxy mobile node information in the anchor paging controller or the anchor location register when the terminal is in the idle mode, When the terminal requests to exit the idle mode and enter the normal service network, it can quickly and accurately find the relevant information and perform the correct operation.
- the anchor function entity information such as the anchor authenticator, the anchor external proxy, and the anchor proxy mobile node information in the anchor paging controller or the anchor location register
- the service connected to the service connection service network entity includes a service base station and/or a service connection service network gateway; thereby completing a communication connection between the terminal service connection service network and each anchor connection service network after the terminal exits the idle mode.
- it mainly includes:
- the serving base station After receiving the search request of the terminal, the serving base station obtains the terminal from the anchor paging controller through the relay paging controller in the monthly service network gateway according to the anchor paging controller information carried in the search request message.
- Context information stored in the anchor paging controller when entering the idle mode including security context information and anchor function entity identification information;
- the serving base station After receiving the idle mode response message carrying the terminal context information, the serving base station ends After sending the search response message, the terminal sends an acknowledgment message to the anchor paging controller through the connection service network gateway where the relay paging controller is located, and the message carries the idle mode exit success and the service that needs to be saved to the anchor authenticator.
- the current serving base station and the service connection service network gateway of the terminal perform the network reentry step according to the terminal context information and the anchor function entity identification information acquired in the above steps.
- the terminal corresponding to the communication method in which the terminal exits the idle mode exits the idle mode.
- the terminal accesses the network through the serving base station, and the system includes:
- the second triggering unit 120 is configured to trigger the terminal to exit the idle mode process and perform network re-entry.
- the second triggering unit 120 may be located at the terminal 100 or may be located at the serving base station 200 on the network side.
- the information obtaining unit 230 is located at the serving base station 200, and is configured to acquire the terminal 100 session information from the access service network gateway 400 where the anchor paging controller 420 of the terminal is located, where the session information carries the terminal anchor function entity information;
- the serving base station 200 establishes a service transmission channel of the terminal to the home agent according to the terminal session information.
- the system further includes:
- the verification unit 240 is located at the serving base station 200, and is used by the serving base station 200 to determine whether it has the authentication key of the terminal and its context information, so as to verify the legality of the received access request message;
- the serving base station 200 verifies the validity of the access request message according to the authentication key of the terminal 100 and its context information;
- the anchor authenticator 410 If not, the anchor authenticator 410 generates an authentication key and its context and sends it to the terminal 100.
- the system further includes:
- the context generating unit 411 is located at the anchor authenticator 410, and after receiving the authentication key and the context request, according to the terminal identification information, find the primary session key and the paired master key information of the terminal, and according to The current serving base station identifier, generating an authentication key and its context for the terminal, concurrent Send to terminal 100.
- the system further includes:
- the second sending unit 250 is located at the serving base station 200, and is configured to send, by using the access service network gateway 300, the session information request message of the terminal 100 to the access network gateway 400 where the anchor paging controller 420 is located;
- the session information obtaining unit 421 is located at the anchor paging controller 420, configured to acquire the session information of the terminal 100 from the anchor location register 440 associated with the terminal, and reply to the terminal service access service network gateway 300 by using a response message;
- the second storage unit 320 is located at the access service network gateway 300, and is configured to, after receiving the response message sent by the session information obtaining unit 421, retain the related information, and send related information required by the base station to the serving base station 200.
- the system further includes:
- the anchor function entity information storage unit 330 is located at the service access service network gateway, and is configured to store anchor function entity information, and/or session information of the terminal, where the information required by the base station includes an anchor authenticator identifier, and/or a terminal Session information.
- the terminal in this embodiment performs location update or exits the idle mode in the idle mode
- the foregoing method and system can correctly find the anchor authenticator, the anchor external proxy, the anchor paging controller, and the anchor proxy mobile.
- the anchor function entity information of the terminal information, and the like, completes the corresponding operation according to the above information, thereby ensuring the execution of the process.
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Description
终端进入和退出空闲模式的通信方法及系统 技术领域
本发明涉及一种移动通信技术, 尤其涉及一种移动通信系统中的终端进 入和退出空闲模式的通信方法及系统。 背景技术
空闲模式是 IEEE 802.16e标准定义的移动宽带无线接入系统中的一种终 端工作模式。 在空闲模式下, 终端可以在设定的一个区域内移动, 每隔一定 的周期接收下行广播业务消息, 系统通过广播消息通知终端是否有下行业务 发送, 终端在这个区域内漫游过程中不必向这个小区的基站进行注册。 同时, 终端漫游到不同小区时, 不必进行切换等操作流程, 从而有利于节省终端的 功率和空口资源。
在该方案下, 多个基站组成一个寻呼组, 该寻呼组的目的是构成一个连 续的区域, 在这个区域内终端没有必要发送上行业务, 但是可以通过下行寻 呼通道来判断网络侧是否有发送给它的下行业务, 该寻呼组必须足够大以保 证大多数终端在较长时间内保持在同一个寻呼组范围内, 避免频繁的位置更 新; 同时寻呼组又要足够小, 以保证在一个寻呼組对终端进行寻呼的开销是 合理的。
在与某个服务基站的处于正常连接模式过程中, 终端可以通过发送消息 请求进入空闲模式, 同样, 服务基站也可以通过发送消息主动要求终端进入 空闲模式。
目前制定的微波接入全球互通(WiMAX )标准定义了空闲模式下的寻呼 参考模型, 如图 1所示, 是该 WiMAX寻呼网络结构示意图, 从图中可见, 寻呼控制器是一个控制终端空闲模式活动的网络实体, 该实体在目前的 WiMA 的网络构架中是一个逻辑实体,与另一个逻辑实体 -鉴权者关系密切 (有可能和鉴权者在同一个物理网元内实现)。 其可能位于 WiMAX网络的物
理网元-接入服务网络网关(ASN GW )中, 也可能位于另一个独立的物理网 元中。 此外, 由于寻呼控制器需要根据当前终端所在的 '寻呼组发起寻呼过程, 因此, 需要一个位置寄存器保存终端的状态信息、 寻呼信息和服务流相关信 息。 一般来说, 一个寻呼控制器逻辑实体会对应一个位置寄存器逻辑实体, 并且两个逻辑实体在同一个物理网元内实现。
在 WiMAX网络架构中, 目前提到的鉴权者以及寻呼控制器以及位置寄 存器都是一个逻辑功能实体, 属于接入服务网络网关的一个功能部分。 在目 前的寻呼解决方案里, 认为终端在空闲模式下, 鉴权者以及寻呼控制器都是 不变的, 并认为终端进入空闲模式后, 保存终端密钥信息的锚鉴权者和锚寻 呼控制器都是不变的, 虽然在物理上, 在空闲模式下, 终端可能移动到别的 寻呼控制器以及鉴权者的物理管辖范围内; 同时如果考虑寻呼控制器和鉴权 者在同一个物理实体上实现, 则此时终端进入空闲模式或者退出空闲模式, 以及做位置更新的时候, 终端只要向该物理实体交互, 就同时能够向寻呼控 制器和鉴权者保存或者取得消息,从而完成空闲模式下终端的相关管理过程。
在终端所处的模式发生变化或者进行网络切换时, 终端所对应的当前为 之服务的各种功能实体成为锚定实体, 如锚鉴权者 ( Anchor Authenticator ), 锚寻呼控制器( Anchor Paging Controller )、 锚数据通道功能体(Anchor Data Path Function )、 锚外部代理 ( Anchor Foreign Agent ), 锚业务流授权 (Anchor SFA)实体、 动态主机配置协议中继 (DHCP Proxy)实体、 锚计费客户端 (Anchor Accounting Client)等。
以上功能实体, 可能由于服务于各个终端 MS 的功能实体随着终端的移 动, 它们各自触发改变的时机的不同, 导致服务于特定终端 MS 的上述各个 功能实体, 如锚鉴权者(Anchor Authenticator ), 外部代理 FA, 锚业务流授权 ( Anchor SFA ), 锚代理移动 IP客户端( Anchor PMIP Client )等可能会存在 于不同的接入服务网网关 ASN-GW里, 因此在一次活动中, 会涉及各个不同 的接入服务网网关 ASN-GW之间的交互
需要说明的是, 在每个接入服务网 ASN内均存在上述所有功能实体, 当
用户终端 MS入网时, 为之提供服务的各功能实体都存在于服务接入服务网 ( Serving ASN ) 内, 伴随着 MS的移动或网络资源优化或其它原因, 就会发 生功能实体的迁移, 需说明的是, 这里的迁移是指为 MS提供服务的功能实 体的迁移, 即本发明里提到的 MS的锚功能实体的迁移, 不是指功能实体本 身, 即虽然每个接入服务网络都有同样的功能实体,但此刻它可能不为该 MS 提供服务。 迁移的结果可能导致为 MS提供服务的各功能实体分布在多个接 入服务网络内。
因此在一个网络接入提供商范围内, 当终端进入空闲模式以后, 即使以 上提到的锚寻呼控制器, 锚鉴权者, 锚外部代理, 锚数据通道功能体以及锚 代理移动节点等逻辑功能实体在同一个物理实体里实现, 随着终端的移动, 由于在移动过程中以上功能实体变更时的触发因素和时机的不同, 就会存在 终端在空闲模式下, 由于终端的移动, 处于在某个特别的基站下, 从物理上 该基站是与新的鉴权者以及新的寻呼控制器和外部代理相连接, 但锚寻呼控 制器, 锚鉴权者, 锚外部代理, 锚数据通道功能体以及锚代理移动节点不在 同一个网络物理实体内。
如图 1所示, 为不考虑 WiMAX网络中的其他物理网元和逻辑实体情况 下的 WiMAX寻呼网络结构示意图。 图中所示的接入服务网络网关 300是终 端当前的接入服务网络网关, 接入服务网络网关 500是该终端的锚外部代理, 而接入服务网络网关 400则是该终端的锚寻呼控制器以及锚鉴权者所在的接 入服务网络网关。
当终端在进入空闲模式的时候需要将这些信息送到锚寻呼控制器, 然后 锚寻呼控制器找到与 ^ l关联的位置寄存器去保存这些信息, 这样终端在空 闲模式下, 在某个基站下做位置更新, 或者退出空闲模式的时候, 需要知道 具体为该终端服务的锚寻呼控制器、 锚答权者、 锚数据通道功能体以及锚外 部代理的消息, 从而到相应的实体里面去完成相应的功能。 例如做位置更新 时需要到锚養权者里取得密钥信息, 用于验证当前的位置更新消息的合法性; 退出空闲模式的时候需要到锚寻呼控制器 /位置寄存器里取得相应的会话信
息, 包括锚外部代理、 锚数据通道功能体、 锚代理移动节点的信息, 从而完 成终端对应的数椐通路的建立。 而上述现有技术方案, 并不能保证终端在进 入或者退出空闲模式的时候, 准确地获取上述信息。
以上提到的锚数据通道功能体通常情况下和锚外部代理位于同一个物理 实体里, 有时不分别提这两个逻辑实体的概念, 而只出现锚外部代理或者锚 数据通道功能体的概念。 发明内容
本发明实施例提供一种当终端所属的锚功能实体不在同一个物理实体时 对终端空闲模式的通信方法以及对应的通信系统, 用以解决现有技术中存在 的当终端处于空闲模式下如果获取所属的锚功能实体不在同一个物理实体时 不能保证终端在进入或者退出空闲模式时准确地获取锚功能实体信息的问 题。
一种终端进入空闲模式的通信方法, 包括:
触发终端进入空闲模式流程;
服务接入服务网络网关将服务于该终端的锚功能实体信息发送到锚功能 实体信息存储单元保存。
一种终端进入空闲模式的通信系统, 终端通过服务基站接入至网絡侧, 包括:
进入空闲模式触发单元, 用于触发终端进入空闲模式流程;
锚功能实体信息发送单元, 位于服务接入服务网络网关, 用于将服务于 该终端的锚功能实体信息发送到锚功能实体信息存储单元保存;
锚功能实体信息存储单元, 用于保存所述终端的锚功能实体信息。
一种终端退出空闲模式的通信方法, 包括:
触发终端退出空闲模式流程, 进行网络重入;
服务基站自所述终端的锚寻呼控制器所在接入服务网络网关获取终端会 话信息, 所述会话信息中携带终端锚功能实体信息;
服务基站根据所述终端会话信息建立终端到家乡代理的业务传输通道。 一种终端退出空闲模式的通信系统, 终端通过服务基站接入至网络侧, 包括:
退出空闲模式触发单元, 用于触发终端退出空闲模式流程, 进行网络重 入;
终端会话信息获取单元, 位于服务基站, 用于自所述终端的锚寻呼控制 器所在接入服务网络网关获取终端会话信息, 所述会话信息中携带终端锚功 能实体信息;
服务基站根据所述终端会话信息建立终端到家乡代理的业务传输通道。 采用本发明所述的技术方案, 当服务于终端的锚功能实体不在同一个物 理实体上的时候, 依然可以正确的寻址, 保证了网络服务流程的畅通。 附图说明
图 1为现有技术中的 WiMAX寻呼模型图;
图 2为本发明实施例网络终端进入空闲模式的处理方法流程图; 图 3为本发明实施例终端进入空闲模式的一个具体实例流程图; 图 4为本发明实施例终端进入空闲模式的通信系统示意图;
图 5为本发明所迷的网络终端退出空闲模式的处理方法流程图; 图 6为本发明实施例终端退出空闲模式的一个具体实例流程图; 图 7为本发明实施例终端退出空闲模式的通信系统示意图。 具体实施方式
如说明书附图 1所示, WiMAX寻呼参考模型中,在接入业务网中有接入 服务网络网关 300、 接入服务网络网关 400、 接入服务网络网关 500等网元, 每个网元又对应着若干个基站, 当终端 100向服务基站 200上主动请求进入 空闲模式, 或者服务基站 200指示终端进入空闲模式时, 通过终端 100与服 务基站 200 ,服务基站 200与后端网元接入服务网络网关 300之间的消息交互,
通知接入服务网络网关 400 网元上的寻呼控制器, 终端进入空闲模式, 并在 接入服务网络网关 400 网元的位置寄存器中保存终端的状态信息、 寻呼信息 和服务流信息。 终端可以在发给服务基站 200的空闲模式请求消息中携带它 进入空闲模式时请求需要保留的信息, 服务基站 200在空闲模式请求响应消 息中也可以设置类似的信息, 用来通知终端 100在位置寄存器中所保留的相 关信息, 并将寻呼控制器的标识通知终端。 此外, 在终端进入空闲模式后, 需要释放相应的接入服务网络网关网元之间的 R4和基站与接入服务网络网 关网元之间的 R6接口。
终端在移动或者所处模式发生变换时, 对其发生作用的各种锚功能实体 的信息是唯一的, 因此, 只要能够正确的找到这些信息, 就可以做到正确的 寻址, 进而完成相应操作。 所述信息包括了锚鉴权者、 锚外部代理、 锚位置 寄存器、 锚寻呼控制器、 锚代理移动节点、 锚服务流授权实体以及锚数据通 道功能体等信息, 本发明方案中可以统称为终端的锚功能实体信息。
为进一步了解本发明对于终端所处空闲模式的处理方法, 以终端进入空 闲模式和退出空闲模式的情况分别做以说明。
终端在移动过程中 , 其当前的服务基站总是知道终端的锚鉴权者标识信 息, 因为终端在特定网络服务区进入正常的业务通信, 其与当前的服务基站 发生了消息的交换, 所以当前的服务基站知道锚鉴权者标识等信息, 而在终 端移动过程中发生切换时, 这些信息会作为终端的会话信息的一部分进行传 递到新的基站, 因此在进入空闲模式之前, 终端当前的服务基站总是知道服 务该终端的锚鉴权者标识信息。
如说明书附图 2所示, 是终端进入空闲模式的处理方法流程图, 其步骤 具体包括:
步骤 101 , 触发终端进入空闲模式流程;
在需终端要进入空闲模式时, 可以通过两种方式触发进入空闲模式流程: 通过终端側触发: 发送注册请求消息给服务基站触发终端进入空闲模式 流程;
通过网络侧触发, 由网络侧服务基站发送请求消息给终端, 主动要求终 端进入空闲模式。
本发明实施例方案可以釆用任意一种模式触发终端进入空闲模式流程。 步骤 102,服务基站根据已知的该终端的锚婆权者标识信息,将鉴权密钥 以及上下文发送给该锚鉴权者, 同时将它所维护的终端的会话信息通过服务 接入服务网络网关保存到锚寻呼控制器里去, 这些终端会话信息包括 CID, SAID, SFID等;
步骤 103,服务接入服务网络网关将服务于该终端的锚功能实体信息发送 到锚功能实体信息存储单元保存。
上述方案中锚鉴权者的标识、 锚外部代理的标识、 锚代理移动节点、 锚 服务流授权实体、 锚数据通道功能体的标识分別指锚鉴权者、 锚外部代理、 锚代理移动节点、 锚服务流授权实体、 锚数据通道功能体所在的物理网元的 IP地址, 或 MAC地址或网络标识。
该步骤中, 锚功能实体信息存储单元可以为锚寻呼控制器, 也可以为锚 位置寄存器。
在上述方法中, 锚寻呼控制器保存所述锚功能实体信息的过程如下: 服务基站通过位于服务接入服务网络网关里的中继寻呼控制器向锚寻呼 控制器所在的接入服务网络网关转发所述锚功能实体信息; 并将所述锚功能 实体信息存储在锚寻呼控制器内。
根据网络结构, 如果锚寻呼控制器和锚鉴权者不在同一个物理实体里, 锚寻呼控制器进一步可以将其获得的终端安全上下文发送到锚鉴权者里保 存。
在上述方法中, 锚寻呼控制器保存所述锚功能实体信息的过程也可以如 下:
服务基站接收到终端进入空闲模式请求消息后, 服务接入服务网络网关 通过锚外部代理存储所述锚功能实体信息;
锚外部代理所在的接入服务网络网关向锚寻呼控制器所在的接入服务网
络网关转发所述锚功能实体信息; 并将所述锚功能实体信息存储在锚寻呼控 制器内。
才艮据网络结构, 如果锚寻呼控制器和锚鉴权者不在同一个物理实体里, 锚寻呼控制器进一步可以将其获得的终端安全上下文发送到锚鉴权者里保 存。
在存储的过程中, 锚外部代理还记录了锚寻呼控制器的标识信息, 和 /或 记录终端进入空闲模式的状态信息, 即记录终端当前是否处于空闲模式状态, 以便能够正确的寻址。
上述步骤 102 中, 鉴权密钥以及其上下文也属于终端的会话信息 , 在终 端进入空闲模式后需要保存到锚鉴权者里, 以便后续终端在空闲状态下做位 置更新或者后续退出空闲模式时, 需要到这里取得这些鉴权密钥以及上下文 信息用来校脸相关管理消息的合法性。
上述步骤 103中, 锚鉴权者标识、 和 /或锚外部代理、 和 /或锚代理移动节 点、 和 /或锚服务流授权实体、 和 /或锚数据通道功能体标识信息也可以由锚寻 呼控制器找到对应的锚位置寄存器, 将上述信息由锚位置寄存器保存。
上述方案中如果锚鉴权者和锚 呼控制器位于同一个物理网元内, 则服 务基站接收到终端进入空闲模式请求消息以后, 验证完该请求消息的合法性 后, 将针对该终端的鉴权密钥以及上下文、 和 /或锚功能实体信息发送到锚鉴 权者和锚寻呼控制器所在的物理网元内保存。
如说明书附图 3所示, 是终端进入空闲模式的一个具体实例流程图, 该 实例省略了一些没有直接应用的功能单元, 从图中可见, 在终端发起空闲模 式进入请求, 由服务接入服务网络网关将服务于该终端的锚功能实体信息发 送到锚功能实体信息存储单元保存完成后, 锚寻呼控制器回复空闲模式进入 响应消息到中继寻呼控制器所在的服务接入月艮务网络网关, 消息中携带需要 告知进入空闲模式终端的寻呼参数以及该终端的锚寻呼控制器标识; 并进一 步转发到服务基站; 服务基站回复终端空闲模式进入响应消息后, 服务基站 将给中继寻呼控制器所在的服务接入服务网络网关回复空闲模式进入确认消
息, 消息中携带基站更新过的最新 CMAC— Key一 Count, 服务接入服务网络网 关进一步将这个上下文转发到锚鉴权者保存, 过程中可能通过锚寻呼控制器 进行转发, 锚鉴权者根据 CMAC 校验结果, 决定是否更新 CMAC—KEY— COUNT。
如图 4所示, 是与终端进入空闲模式的通信方法相对应的终端进入空闲 模式的通信系统, 从图中可见, 终端通过服务基站接入至网络侧, 该系统中 包括:
第一触发单元 110, 用于触发终端进入空闲模式流程; 该进入空闲模式触 发单元 110可以位于终端 100, 也可以位于网络侧的月 务基站 200, 本方案采 用位于终端 100进行说明。
第一发送单元 310,位于服务接入服务网络,本实施例设置于接入服务网 络网关 300,用于将服务于该终端的锚功能实体信息发送到锚功能实体信息存 储单元保存;
第一存储单元, 用于保存所述终端的锚功能实体信息。
上述方案中第一存储单元为锚寻呼控制器或锚位置寄存器, 本方案中以 锚寻呼控制器为例进行说明。
在本方案中, 服务于终端的锚鉴权者 410和锚寻呼控制器 420位于同一 接入服务网络网关中。
本发明在所述系统还设置:
验证单元 210, 位于服务基站 200, 用于在服务基站 200接收终端 100进 入空闲模式请求消息后, 验证所述请求消息的合法性;
鉴权密钥及上下文发送单元 220, 位于服务基站 200, 用于将针对该终端 100的鉴权密钥以及上下文发送到锚鉴权者 410和锚寻呼控制器 420所在的物 理网元保存。
转发单元 511 , 位于锚外部代理 510所在的接入服务网络网关 500, 用于 向锚寻呼控制器 420所在的接入服务网络网关 400转发接入服务网络网关 300 通过锚外部代理 510存储的锚功能实体信息;
所述锚寻呼控制器 420接收所述锚功能实体信息后进行存储;
所述系统还包括:
记录单元 512, 位于所述锚外部代理 510, 用于记录錨寻呼控制器的标识 信息, 和 /或记录终端进入空闲模式的状态信息。
在终端退出空闲模式过程中, 需要将在锚寻呼控制器保存的这些锚功能 实体标识信息找回到终端退出空闲模式时所连接的服务连接服务网络实体 内, 包括服务基站和 /或服务连接服务网络网关; 从而完成终端退出空闲模式 以后, 建立终端服务连接服务网络和各锚网络之间的通信连接。
如说明书附图 5所示, 为终端退出空闲模式的处理方法流程图, 其步骤 具体包括:
步骤 201 , 触发终端退出空闲模式流程, 进行网络重入;
该步驟可以由终端触发, 也可以由网络侧触发, 本实施例采用终端触发。 终端发送接入请求消息给服务基站, 要求退出空闲模式, 进行网络重入, 所述消息中携带了锚寻呼控制器标识信息; 同时该终端根据自己当前的主管 理密钥以及当前的基站标识重新生成鉴权密钥以及其上下文, 从而在该接入 请求消息中携带基于哈希的消息验证码;
步骤 202,服务基站收到该接入请求消息以后,判断自己是否拥有该终端 的鉴权密钥及其上下文信息可以用来校验接收到的接入请求消息的合法性, 如果有, 则执行步驟 204; 否则, 执行步骤 203;
步驟 203,服务基站根据得到的服务于该终端的锚鉴权者的信息,通过服 务接入服务网络网关向锚鉴权者请求该终端的鉴权密钥以及其上下文, 用来 校验接收到的接入请求消息的合法性; 锚鉴权者收到鉴权密钥及其上下文请 求以后, 根据终端标识信息, 找到该终端的主会话密钥以及成对主密钥信息, 并根据当前的服务基站标识, 为该终端生成鉴权密钥及其上下文, 通过鉴权 密钥传输消息发送给终端;
步骤 204,服务基站根据该终端的鉴权密钥及其上下文信息校验接入请求 消息的合法性, 如合法, 则执行步骤 205; 否则, 直接回复判断为非法的应答
信息;
步骤 205,服务基站通过服务接入服务网络网关向锚寻呼控制器所在的接 入服务网络网关发送该终端的会话信息请求消息;
步骤 206,锚寻呼控制器接收到该终端的会话信息请求消息后,该锚寻呼 控制器找到与之关联的位置寄存器信息, 到位置寄存器里去取终端的会话信 息; 并通过终端会话信息请求的应答消息回复终端服务接入服务网络网关; 应答消息里包括该终端的锚锚功能实体信息和 /或终端会话信息。
该步谏中, 终端的锚功能实体信息可以包括锚鉴权者标识、 和 /或锚外部 代理标识、 和 /或锚代理移动节点标识,
该步骤中, 终端的会话信息可以包括 CID, SFID以及服务流的 QoS信息 等。
步骤 207,服务接入服务网络网关收到终端的上述会话信息后,保留相关 信息, 并将基站需要的相关信息发送到服务基站; 所述服务接入服务网络网 关保留锚功能实体信息和 /或终端会话信息。 所述基站需要的相关信息包括锚 鉴权者标识, 和 /或终端所拥有的 CID、 和 /或终端所拥有的 SFID、 和 /或终端 所拥有的服务流的 QoS信息;
步骤 208,服务基站准许终端接入后,建立终端到家乡代理的业务传输通 道; 包括服务基站与服务接入服务网络网关之间的数据承载通道和服务接入 服务网络网关与锚接入服务网络网关之间的通道, 具体过程如下:
服务基站发送数据通道建立请求消息到服务接入服务网络网关, 请求建 立服务基站与服务接入服务.网络之间的数据承载通道; 在消息中携带锚外部 代理所在的接入服务网络网关的标识和 /或锚代理移动节点标识;
服务接入服务网络网关向锚外部代理所在的接入服务网络网关发送数据 通道建立请求消息, 请求建立两者之间的针对该终端的数据承载通道;
锚外部代理所在的接入服务网络网关回复数据通道建立应答消息给服务 接入服务网络网关, 服务接入服务网络网关回复服务基站数据通道建立应答 消息给服务基站;
服务基站回复终端退出空闲模式请求的应答消息, 并携带基于哈希的消 息验证码, 按照 IEEE 802.16e协议定义的格式, 和终端通过交互完成空口的 网络重入过程;
服务基站回复数据通道建立确认消息给服务接入服务网络网关, 同时接 入服务网络网关回复数据通道建立确认消息给锚外部代理。
上述方案中 , 如果终端在进入空闲模式的时候释放了锚外部代理与家乡 代理之间的数据通道, 那么所述建立终端到家乡代理的数据传输通道的过程 还包括建立锚外部代理和家乡代理之间的数据通道, 具体过程如下:
锚外部代理艮据存到的锚代理移动节点标识, 向锚代理移动节点发送锚 外部代理和家乡代理通道建立请求消息;
锚代理移动节点收到该请求消息以后, 为该终端进行移动 IP注册, 建立 锚外部代理和家乡代理之间的数据通道。
由此可见, 由于终端在处于空闲模式时, 在锚寻呼控制器或锚位置寄存 器中保存了终端相关的锚鉴权者、 锚外部代理以及锚代理移动节点信息等锚 功能实体信息, 因此, 当终端要求退出空闲模式, 进入正常的服务网络时, 可以快速准确的寻找到相关的信息, 进行正确的操作。
如说明书附图 6所示, 是一个具体的终端退出空闲模式的实例流程, 在 终端退出空闲模式过程中 , 需要将在锚寻呼控制器保存的这些锚功能实体标 识信息找回到终端退出空闲模式时所连接的服务连接服务网络实体内, 包括 服务基站和 /或服务连接服务网络网关; 从而完成终端退出空闲模式以后, 建 立终端服务连接服务网络和各锚连接服务网络之间的通信连接。 从图中可见, 主要包括:
服务基站接收到终端的搜索请求后, 根据搜索请求消息里携带的锚寻呼 控制器信息, 通过月艮务连接^ ^务网络网关里的中继寻呼控制器向锚寻呼控制 器获取终端曾经进入空闲模式时保存在锚寻呼控制器里的上下文信息 , 其中 包括安全上下文信息以及锚功能实体标识信息;
服务基站收到携带有终端上下文信息的进入空闲模式响应消息后, 向终
端发送搜索响应消息后, 同时将通过中继寻呼控制器所在的连接服务网络网 关向锚寻呼控制器发送确认消息, 消息中携带空闲模式退出成功, 以及需要 保存到锚鉴权者的服务基站更新的最新的 CMAC— KEY— Count值;
终端当前的服务基站以及服务连接服务网络网关根据以上步骤中获取的 终端上下文信息以及锚功能实体标识信息, 和终端执行网络重入步骤。
如图 7所示, 是与终端退出空闲模式的通信方法相对应的终端退出空闲 模式的通信系统, 从图中可见, 终端通过服务基站接入至网络侧, 该系统中 包括:
第二触发单元 120, 用于触发终端退出空闲模式流程, 进行网络重入; 该第二触发单元 120可以位于终端 100, 也可以位于网络侧的服务基站 200, 本方案采用位于终端 100进行说明。
信息获取单元 230, 位于服务基站 200, 用于自所述终端的锚寻呼控制器 420所在接入服务网络网关 400获取终端 100会话信息,所述会话信息中携带 终端锚功能实体信息;
服务基站 200根据所述终端会话信息建立终端到家乡代理的业务传输通 道。
所述的系统, 还包括:
校验单元 240, 位于服务基站 200, 用于服务基站 200判断其是否拥有所 述终端的鉴权密钥及其上下文信息, 以用来校验接收到的接入请求消息的合 法性;
如果有, 则服务基站 200根据该终端 100的鉴权密钥及其上下文信息校 验接入请求消息的合法性;
如果没有,则锚鉴权者 410生成鉴权密钥及其上下文,并发送给终端 100。 所述的系统, 还包括:
上下文生成单元 411 , 位于锚鉴权者 410, 用于在收到鉴权密钥及其上下 文请求后, 根据终端标识信息, 找到该终端的主会话密钥以及成对主密钥信 息, 并根据当前的服务基站标识, 为该终端生成鉴权密钥及其上下文, 并发
送给终端 100。
所述的系统, 还包括:
第二发送单元 250, 位于服务基站 200, 用于通过接入服务网络网关 300 向锚寻呼控制器 420所在的接入9艮务网络网关 400发送所述终端 100的会话 信息请求消息;
会话信息获取单元 421, 位于锚寻呼控制器 420, 用于向与所述终端关联 的锚位置寄存器 440获取终端 100的会话信息, 并通过应答消息回复终端服 务接入服务网络网关 300;
第二存储单元 320, 位于接入服务网络网关 300, 用于在收到会话信息获 取单元 421发送的应答消息后, 保留相关信息, 并将基站需要的相关信息发 送到服务基站 200。
所述的系统, 还包括:
锚功能实体信息存储单元 330,位于服务接入服务网络网关, 用于存储锚 功能实体信息、 和 /或终端的会话信息, 所述基站需要的信息包括锚鉴权者标 识, 和 /或终端的会话信息。
由此可知, 本实施例方案终端在空闲模式下执行位置更新或者退出空闲 模式时, 通过上述方法及系统可以正确的寻找到锚鉴权者、 锚外部代理、 锚 寻呼控制器以及锚代理移动节点信息等终端的锚功能实体信息, 并根据上述 信息完成相应的操作, 从而保证了流程的执行。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。
Claims
1、 一种终端进入空闲模式的通信方法, 其特征在于, 包括:
触发终端进入空闲模式流程;
服务接入服务网络将服务于该终端的锚功能实体信息发送到锚功能实体 信息存储单元保存。
2、 如权利要求 1所述的方法, 其特征在于, 所述锚功能实体信息存储单 元为锚寻呼控制器或锚位置寄存器。
3、 如权利要求 1所述的方法, 其特征在于, 所述锚功能实体信息存储单 元为锚寻呼控制器, 所述服务接入服务网絡将服务于该终端的锚功能实体信 息发送到锚功能实体信息存储单元保存步骤包括:
服务基站接收终端进入空闲模式请求消息后, 验证所述请求消息的合法 性, 并将针对该终端的答权密钥以及上下文、 和 /或锚功能实体信息发送到锚 鉴权者和锚寻呼控制器所在的物理网元保存。
4、 如权利要求 1-3任一项所述的方法, 其特征在于, 所述锚功能实体信 息存储单元为锚寻呼控制器, 锚功能实体信息存储单元保存所述锚功能实体 信息的步驟, 进一步包括:
服务基站通过中继寻呼控制器所在的服务接入服务网络网关向锚寻呼控 制器所在的接入服务网络网关发送所述锚功能实体信息;
锚寻呼控制器存储所述锚功能实体信息; 或者
服务接入服务网络网关通过锚外部代理存储所述锚功能实体信息; 锚外部代理所在的接入服务网络网关向锚寻呼控制器所在的接入服务网 络网关转发所述锚功能实体信息, 并将所述锚功能实体信息存储在锚寻呼控 制器内。
5、 如权利要求 1-3任一项所述的方法, 其特征在于, 所述锚功能实体信 息存储单元为锚寻呼控制器, 锚功能实体信息存储单元保存所述锚功能实体 信息的步 , 进一步包括:
服务接入服务网络网关通过锚外部代理存储所述锚功能实体信息; 锚外部代理所在的接入服务网絡网关向锚寻呼控制器所在的接入服务网 络网关转发所述锚功能实体信息;
锚寻呼控制器存储所述锚功能实体信息。
6、 如权利要求 5所述的方法, 其特征在于, 还包括锚外部代理记录锚寻 呼控制器的标识信息, 和 /或记录终端进入空闲模式的状态信息。
7、 如权利要求 1-6任一项所述的方法, 其特征在于, 所述锚功能实体信 息包括下述内容之一或其任意组合:
锚鉴权者标识、 锚外部代理标识、 锚代理移动节点标识、 锚数据通道功 能体标识、 锚服务流授权实体、 锚寻呼控制器标识信息。
8、 如权利要求 1-7任一项所述的方法, 其特征在于, 所述锚功能实体信 息为所述锚功能实体所在物理网元的 IP地址, 或 MAC地址, 或网络地址标 识。
9、一种终端进入空闲模式的通信系统,终端通过服务基站接入至网络侧, 其特征在于, 包括:
触发单元, 用于触发终端进入空闲模式流程;
发送单元, 位于服务接入服务网络, 用于将服务于该终端的锚功能实体 信息发送到锚功能实体信息存储单元保存;
存储单元, 用于保存所述终端的锚功能实体信息。
10、 如权利要求 9所述的系统, 其特征在于, 所述存储单元为锚寻呼控 制器或锚位置寄存器。
11、 如权利要求 9所述的系统, 其特征在于, 所述存储单元为锚寻呼控 制器, 所述 务于终端的锚鉴权者和锚寻呼控制器位于同一物理网元, 所述 系统还包括:
验证单元, 位于服务基站, 用于在服务基站接收终端进入空闲模式请求 后, 验证所述请求的合法性;
鉴权密钥及上下文发送单元, 用于将针对该终端的鉴权密钥以及上下文
发送到锚鉴权者和锚寻呼控制器所在的物理网元保存。
12、 如权利要求 9或 11所述的系统, 其特征在于, 所述存储单元为锚寻 呼控制器, 所迷系统进一步包括:
转发单元, 位于锚外部代理所在的接入服务网络网关, 用于向锚寻呼控 制器所在的接入服务网络网关转发服务接入服务网络网关通过锚外部代理存 储的锚功能实体信息;
所述锚寻呼控制器接收所述锚功能实体信息后进行存储。
13、 如权利要求 9-12任一项所述的系统, 其特征在于, 还包括: 记录单元, 位于所述锚外部代理, 用于记录锚寻呼控制器的标识信息, 和 /或记录终端进入空闲模式的状态信息。
14、 一种终端退出空闲模式的通信方法, 其特征在于, 包括:
触发终端退出空闲模式流程, 进行网络重入;
服务基站自所述终端的锚寻呼控制器所在接入服务网络获取终端会话信 息, 所述会话信息中携带终端锚功能实体信息;
服务基站根据所述终端会话信息建立终端到家乡代理的业务传输通道。
15、 如权利要求 14所述的方法, 其特征在于, 所述锚功能实体信息包括 下述内容之一或其任意組合:
銮权者标识、 锚外部代理标识和锚代理移动节点标识、 锚寻呼控制器标 " R^息
16、 如权利要求 14或 15所述的方法, 其特征在于, 所述服务基站自所 述终端的锚寻呼控制器所在接入服务网络网关获取终端会话信息步骤之前, 还包括:
服务基站对接收到的接入请求消息的合法性进行校验, 根据该终端的鉴 权密钥及其上下文信息校验接入请求消息的合法性。
17、 如权利要求 16所述的方法, 其特征在于, 如果服务基站没有所迷终 端的鉴权密钥及上下文信息, 则锚婆权者生成鉴权密钥及其上下文, 并发送 给终端, 包括:
锚鉴权者收到鉴权密钥及其上下文请求后, 根据终端标识信息, 找到该 终端的主会话密钥以及成对主密钥信息, 并根据当前的服务基站标识, 为该 终端生成鉴权密钥及其上下文, 并发送给终端。
18、如权利要求 14-17任一项所述的方法, 其特征在于, 所述服务基站自 锚寻呼控制器所在接入服务网络网关获取终端会话信息步骤进一步包括: 服务基站通过服务接入服务网络网关向锚寻呼控制器所在的接入服务网 络网关发送所述终端的会话信息请求消息;
锚寻呼控制器自与所述终端关联的位置寄存器获取终端的会话信息; 并 通过应答消息回复终端服务接入服务网络网关;
服务接入服务网络网关收到所述应答消息后,保留相关信息, 并将基站 需要的相关信息发送到服务基站。
19、 如权利要求 18所述的方法, 其特征在于, 所述应答消息里包括该终 端的锚功能实体信息, 和 /或终端的会话信息。
20、 如权利要求 18或 19所述的方法, 其特征在于, 还包括:
服务接入服务网络网关保留锚功能实体信息、 和 /或终端的会话信息, 所 述基站需要的信息包括锚養权者标识, 和 /或终端的会话信息。
21、如权利要求 14-19任一项所述的方法,其特征在于, 所述锚功能实体 信息为所述锚功能实体所在物理网元的 IP地址, 或 MAC地址, 或网络地址 标识。
22、 一种终端退出空闲模式的通信系统, 终端通过服务基站接入至网络 侧, 其特征在于, 包括:
触发单元, 用于触发终端退出空闲模式流程, 进行网络重入;
信息获取单元, 位于服务基站, 用于自所述终端的锚寻呼控制器所在接 入服务网络获取终端会话信息 , 所述会话信息中携带终端锚功能实体信息; 服务碁站根据所述终端会话信息建立终端到家乡代理的业务传输通道。
23、 如权利要求 22所述的系统, 其特征在于, 还包括:
校验单元, 位于服务基站, 用于对接收到的接入请求消息的合法性进行
校验;
如果服务基站拥有所述终端的鉴权密钥及其上下文信息, 则根据该终端 的鉴权密钥及其上下文信息校验接入请求消息的合法性;
如果服务基站没有所述终端的鉴权密钥及上下文信息, 则锚鉴权者生成 鉴权密钥及其上下文, 并发送给终端。
24、 如权利要求 22或 23所述的系统, 其特征在于, 还包括:
上下文生成单元, 位于锚鉴权者, 用于在收到鉴权密钥及其上下文清求 后, 根据终端标识信息, 找到该终端的主会话密钥以及成对主密钥信息, 并 根据当前的服务基站标识, 为该终端生成鉴权密钥及其上下文, 并发送给终 端。
25、 如权利要求 22、 23或 24所述的系统, 其特征在于, 还包括: 发送单元, 位于服务基站, 用于通过服务接入服务网络网关向锚寻呼控 制器所在的接入服务网络网关发送所述终端的会话信息请求;
会话信息获取单元, 位于锚寻呼控制器, 用于自与所述终端关联的位置 寄存器获取终端的会话信息, 并通过应答消息回复终端服务接入服务网络网 关;
存储单元, 位于服务接入服务网络网关, 用于在收到会话信息获取单元 发送的应答消息后, 存储相关信息, 并将基站需要的相关信息发送到服务基 站。
26、 如权利要求 22所述的系统, 其特征在于, 还包括:
锚功能实体信息存储单元, 位于服务接入服务网絡网关, 用于存储错功 能实体信息、 和 /或终端的会话信息。
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EP06805160A EP1954083A4 (en) | 2005-11-03 | 2006-11-03 | COMMUNICATION METHOD AND SYSTEM FOR END DEVICE ENTRY AND EXITING OF AN IDLE MODE |
US12/113,703 US8611316B2 (en) | 2005-11-03 | 2008-05-01 | Communication method and system for terminal entering and leaving idle mode |
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CN2005101195154A CN1960567B (zh) | 2005-11-03 | 2005-11-03 | 一种终端进入和退出空闲模式的通信方法 |
CN200510119515.4 | 2005-11-03 |
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US12/113,703 Continuation US8611316B2 (en) | 2005-11-03 | 2008-05-01 | Communication method and system for terminal entering and leaving idle mode |
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WO2007051423A1 true WO2007051423A1 (fr) | 2007-05-10 |
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PCT/CN2006/002959 WO2007051423A1 (fr) | 2005-11-03 | 2006-11-03 | Systeme et procede de communication pour l’entree et la sortie du mode repos d’un terminal |
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US (1) | US8611316B2 (zh) |
EP (1) | EP1954083A4 (zh) |
CN (1) | CN1960567B (zh) |
WO (1) | WO2007051423A1 (zh) |
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Also Published As
Publication number | Publication date |
---|---|
US8611316B2 (en) | 2013-12-17 |
CN1960567B (zh) | 2010-04-21 |
US20080259889A1 (en) | 2008-10-23 |
EP1954083A1 (en) | 2008-08-06 |
CN1960567A (zh) | 2007-05-09 |
EP1954083A4 (en) | 2009-01-07 |
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