技术领域technical field
本发明涉及通信技术领域，尤其涉及一种机器类型通信终端的接入控制方法及系统。The present invention relates to the field of communication technologies, and in particular to an access control method and system for a machine type communication terminal.
背景技术Background technique
M2M(Machine to Machine，机器对机器)是二十世纪九十年代提出的概念，是通信技术发展的重要驱动力量。简单的说，M2M就是机器的互联网，实现手段包括各种联网技术。M2M技术的目标就是使所有机器设备都具备联网和通信能力，其核心理念就是网络一切(NetworkEverything)。M2M的通信对象为机器对机器或者人对机器。一个或多个机器之间的数据通信定义为MTC(Machine Type Communication，机器类型通信)，这种情况下较少需要人机互动。参与MTC的机器，定义为MTC终端(MTC UE，ME)。MTC终端是MTC用户的终端，可通过PLMN(公众陆地移动电话网)与其他MTC终端和MTC服务器进行通信。图1是LTE(长期演进)架构下的MTC网络结构，如图1所示，MTC UE是通过运营商网络与MTC服务器通讯的终端设备，MTC签约者是一个为MTC终端提供业务的实体，包括多个MTC用户。MTC用户通过MTC服务器和PLMN网络相连，MTC服务器为MTC用户提供服务。M2M (Machine to Machine) is a concept proposed in the 1990s and is an important driving force for the development of communication technology. Simply put, M2M is the Internet of machines, and the means of realization include various networking technologies. The goal of M2M technology is to enable all machines and equipment to have networking and communication capabilities, and its core concept is Network Everything. The communication objects of M2M are machine-to-machine or human-to-machine. Data communication between one or more machines is defined as MTC (Machine Type Communication, Machine Type Communication), in which case human-computer interaction is less required. A machine participating in MTC is defined as an MTC terminal (MTC UE, ME). An MTC terminal is a terminal of an MTC user, and can communicate with other MTC terminals and an MTC server through a PLMN (Public Land Mobile Network). Figure 1 is the MTC network structure under the LTE (Long Term Evolution) architecture. As shown in Figure 1, the MTC UE is a terminal device that communicates with the MTC server through the operator network, and the MTC signatory is an entity that provides services for the MTC terminal, including Multiple MTC users. MTC users are connected to the PLMN network through the MTC server, and the MTC server provides services for the MTC users.
在某些应用场景中，MTC终端仅在一定预设时间段内需要与网络进行通信，具有这样特征的MTC终端称为具有“时间控制”特征的MTC终端。比如，电力抄表系统中的MTC终端，仅仅在每个月的某个预设的固定时间段内向网络侧发送数据。在MTC网络架构中对MTC终端提出了Group(组)概念，也就是对MTC终端按照共同特征或者地域进行分组。如果MTC分组中的终端具有时间特征，那么可以针对MTC分组签约同样的允许接入时间段，这样MTC分组中的终端具有相同的允许接入时间段。In some application scenarios, MTC terminals only need to communicate with the network within a certain preset period of time, and MTC terminals with such features are called MTC terminals with "time control" features. For example, the MTC terminal in the electric meter reading system only sends data to the network side within a certain preset fixed time period every month. In the MTC network architecture, the concept of Group (group) is proposed for the MTC terminals, that is, the MTC terminals are grouped according to common features or regions. If the terminals in the MTC group have a time feature, then the MTC group can be signed for the same allowed access time period, so that the terminals in the MTC group have the same allowed access time period.
如图2所示，在MTC网络架构中，针对具有“时间控制”特征的MTC终端，时间段信息通过签约过程确定，并且作为签约数据保存在终端所属的归属网络的HSS(Home Subscriber Server，归属用户服务器)中。签约的时间段信息包括两种：允许接入时间段信息和禁止接入的时间段信息。在允许接入时间段内，网络侧允许MTC终端接入到网络中，MTC终端能够进行正常的业务。在禁止接入的时间段内，网络侧对MTC终端进行接入控制，不允许MTC终端接入到网络中，提出禁止接入的时间段的需求是因为MTC服务器需要在某个时间段进行维护，不能进行正常的业务，因此在这段时间内网络侧不允许MTC终端接入。As shown in Figure 2, in the MTC network architecture, for MTC terminals with the feature of "time control", the time period information is determined through the subscription process, and is stored in the HSS (Home Subscriber Server, Home Subscriber Server) of the home network to which the terminal belongs as subscription data. user server). The time period information of the subscription includes two types: the information of the time period for allowing access and the information of the time period for prohibiting access. During the allowed access period, the network side allows the MTC terminal to access the network, and the MTC terminal can perform normal services. During the period of prohibited access, the network side controls the access of MTC terminals and does not allow MTC terminals to access the network. The requirement of prohibited period of access is proposed because the MTC server needs to be maintained during a certain period of time. , normal services cannot be performed, so the network side does not allow MTC terminals to access during this period of time.
在现有技术中，网络侧可以根据需求修改允许接入时间段信息，比如，网络侧的负荷程度在不同的时间段内是发生变化的，或者在不同的地区会有时差，核心网网元MME(Mobility Manegement Entity，移动性管理实体)可以根据负荷程度或者本地的一些特殊情况修改允许接入时间段信息。但是，禁止接入的时间段信息一经签约，不允许进行修改，即使是MTC终端在漫游过程中，在拜访网络中也要采用归属网络中签约的禁止接入的时间段信息。In the prior art, the network side can modify the allowed access time period information according to requirements. For example, the load level on the network side changes in different time periods, or there will be time differences in different regions. The core network element The MME (Mobility Manegement Entity, Mobility Management Entity) can modify the allowed access time period information according to the load level or some special local conditions. However, once the time period information of prohibited access is signed, it is not allowed to be modified. Even if the MTC terminal is roaming, the time period information of prohibited access signed in the home network must be used in the visited network.
当MTC终端通过初始附着流程接入网络时，核心网网元MME可以从HSS上获取该MTC终端的签约信息。签约信息中的时间段信息可以作为具有“时间控制”特征的MTC终端的接入控制参数，当具有“时间控制”特征的MTC终端在签约的允许接入时间段之外向核心网发送接入请求消息时，那么核心网网元将拒绝MTC终端的接入请求。签约的时间段信息可以存储在UICC(通用集成电路卡)中保存在MTC终端中。当MTC终端漫游到拜访网络，拜访网络的核心网网元可以根据本地和归属网络所在地的时间差或网络负荷情况修改MTC终端的允许接入时间段信息，可以以单独的MTC终端或者MTC分组为粒度进行修改。但是，拜访网络的核心网网元修改MTC终端的允许接入时间段信息后，MTC终端将无法知道在何时发起接入请求才能接入到拜访网络中。When the MTC terminal accesses the network through the initial attachment process, the network element MME of the core network can obtain the subscription information of the MTC terminal from the HSS. The time period information in the subscription information can be used as the access control parameters of the MTC terminal with the "time control" feature, when the MTC terminal with the "time control" feature sends an access request to the core network outside the allowed access time period of the contract message, the core network element will reject the access request of the MTC terminal. The time period information of the subscription can be stored in the UICC (Universal Integrated Circuit Card) and saved in the MTC terminal. When an MTC terminal roams to the visited network, the core network element of the visited network can modify the allowed access period information of the MTC terminal according to the time difference between the local and home network locations or the network load situation, which can be based on a single MTC terminal or an MTC group. to modify. However, after the core network element of the visited network modifies the allowed access period information of the MTC terminal, the MTC terminal will not know when to initiate an access request to access the visited network.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种机器类型通信终端的接入控制方法及系统，解决MTC终端漫游到拜访网络中时无法确定何时发起接入请求才能接入到拜访网络中的问题。The technical problem to be solved by the present invention is to provide an access control method and system for a machine type communication terminal, so as to solve the problem that when an MTC terminal roams into a visited network, it cannot determine when to initiate an access request to access the visited network.
为解决上述技术问题，本发明的一种机器类型通信终端的接入控制方法，包括：In order to solve the above technical problems, an access control method for a machine type communication terminal of the present invention includes:
机器类型通信(MTC)终端在漫游到拜访网络时，该拜访网络的核心网网元将本地的允许接入时间段信息通知给MTC终端。When a machine type communication (MTC) terminal roams to a visited network, the network element of the core network of the visited network notifies the MTC terminal of the local allowed access time period information.
进一步地，MTC终端获知拜访网络的核心网网元本地的允许接入时间段信息后，在需要接入到拜访网络时，根据该时间段信息发起接入请求。Further, after learning the local access time period information of the core network element of the visited network, the MTC terminal initiates an access request according to the time period information when it needs to access the visited network.
进一步地，本地的允许接入时间段信息为核心网网元对MTC终端签约的允许接入时间段信息进行修改得到的时间段信息或核心网网元针对一个、多个或一类MTC终端，在本地配置允许接入时间段信息。Further, the local allowed access time period information is the time period information obtained by the core network element modifying the allowed access time period information signed by the MTC terminal, or the core network network element is aimed at one, multiple or a type of MTC terminal, Configure the access period information locally.
进一步地，拜访网络的核心网网元将本地的允许接入时间段信息通知给MTC终端的步骤包括：Further, the step of the core network element of the visited network notifying the MTC terminal of the local allowed access period information includes:
MTC终端处于连接状态，通过切换的方式漫游到拜访网络时，该拜访网络的核心网网元在接收到重定位请求消息后，向MTC终端的归属网络的核心网网元发送重定位请求应答消息，携带拜访网络本地的允许接入时间段信息，通过该重定位请求应答消息将本地的允许接入时间段信息通知给MTC终端。When the MTC terminal is in the connected state and roams to the visited network through handover, the core network element of the visited network sends a relocation request response message to the core network element of the MTC terminal's home network after receiving the relocation request message , carries the local allowed access time period information of the visited network, and notifies the MTC terminal of the local allowed access time period information through the relocation request response message.
进一步地，通过该重定位请求应答消息将本地的允许接入时间段信息通知给MTC终端包括：Further, notifying the MTC terminal of the local allowed access period information through the relocation request response message includes:
归属网络的核心网网元接收到重定位请求应答消息后，若MTC终端能够成功切入拜访网络，则向该MTC终端所属的基站发起切换命令过程，在该切换命令过程中将拜访网络本地的允许接入时间段信息通知给基站，该基站向MTC终端发送无线资源控制连接重配消息，携带拜访网络本地的允许接入时间段信息。After the core network element of the home network receives the Relocation Request Response message, if the MTC terminal can successfully switch into the visited network, it will initiate a handover command process to the base station to which the MTC terminal belongs. During the handover command process, the local permission of the visited network will be The access period information is notified to the base station, and the base station sends a radio resource control connection reconfiguration message to the MTC terminal, carrying local access period information of the visited network.
进一步地，通过该重定位请求应答消息将本地的允许接入时间段信息通知给MTC终端包括：Further, notifying the MTC terminal of the local allowed access period information through the relocation request response message includes:
归属网络的核心网网元接收到重定位请求应答消息后，若MTC终端无法成功切入拜访网络，则向基站发起切换准备失败过程，在该切换准备失败过程中将拜访网络本地的允许接入时间段信息通知给基站，该基站通过系统消息或寻呼消息将拜访网络本地的允许接入时间段信息通知到MTC终端。After the core network element of the home network receives the relocation request response message, if the MTC terminal fails to successfully switch into the visited network, it will initiate a handover preparation failure process to the base station. During the handover preparation failure process, the local allowed access time of the visited network will be set The segment information is notified to the base station, and the base station notifies the MTC terminal of the local allowed access time segment information of the visited network through a system message or a paging message.
进一步地，拜访网络的核心网网元将本地的允许接入时间段信息通知给MTC终端的步骤包括：Further, the step of the core network element of the visited network notifying the MTC terminal of the local allowed access period information includes:
拜访网络的核心网网元将本地的允许接入时间段信息通知到该核心网网元所管理的基站；The core network element of the visited network notifies the local access time period information to the base station managed by the core network element;
核心网网元所管理的基站将本地的允许接入时间段信息通过系统消息通知到MTC终端。The base station managed by the network element of the core network notifies the MTC terminal of the local allowed access period information through a system message.
进一步地，拜访网络的核心网网元将本地的允许接入时间段信息通知到该核心网网元所管理的基站包括：Further, the core network element of the visited network notifies the local access time period information to the base station managed by the core network element including:
拜访网络的核心网网元采用S1接口建立请求应答消息、配置更新请求应答消息或过载开始消息，将本地的允许接入时间段信息通知到核心网网元所管理的基站。The core network element of the visited network uses the S1 interface establishment request response message, configuration update request response message or overload start message to notify the local access time period information to the base station managed by the core network element.
进一步地，拜访网络的核心网网元将本地的允许接入时间段信息通知给MTC终端的步骤包括：Further, the step of the core network element of the visited network notifying the MTC terminal of the local allowed access period information includes:
MTC终端处于空闲状态，通过小区重选漫游到拜访网络时，向拜访网络的核心网网元发送接入请求消息；When the MTC terminal is in the idle state and roams to the visited network through cell reselection, it sends an access request message to the core network element of the visited network;
拜访网络的核心网网元接收到接入请求消息后，若允许MTC终端接入，则通过非接入层(NAS)消息将本地的允许接入时间段信息通知给MTC终端；若不允许MTC终端接入，则在附着请求拒绝消息中，将本地的允许接入时间段信息通知给MTC终端。After the core network element of the visited network receives the access request message, if the MTC terminal is allowed to access, it will notify the MTC terminal of the local access time period information through the non-access stratum (NAS) message; if the MTC terminal is not allowed If the terminal accesses, the MTC terminal is notified of the local access allowed time period information in the attach request reject message.
进一步地，NAS消息为附着请求接受消息、周期性的跟踪域更新消息或新增NAS消息。Further, the NAS message is an attach request acceptance message, a periodic tracking domain update message or a new NAS message.
进一步地，一种机器类型通信终端的接入控制系统，包括：核心网网元和机器类型通信(MTC)终端，其中：Further, an access control system for a machine type communication terminal, including: a core network element and a machine type communication (MTC) terminal, wherein:
核心网网元，用于在MTC终端漫游到该核心网网元时，将本地的允许接入时间段信息通知给MTC终端；The core network element is used to notify the MTC terminal of the local allowed access period information when the MTC terminal roams to the core network element;
MTC终端，用于在获知核心网网元本地的允许接入时间段信息后，在需要接入到核心网网元时，根据该时间段信息发起接入请求。The MTC terminal is configured to initiate an access request according to the time period information when it needs to access the network element of the core network after learning the local access time period information of the network element of the core network.
进一步地，核心网网元将本地的允许接入时间段信息通知给MTC终端时，在MTC终端处于连接状态，通过切换的方式漫游到核心网网元时，该核心网网元在接收到重定位请求消息后，向MTC终端的归属网络的核心网网元发送重定位请求应答消息，携带本地的允许接入时间段信息，通过该重定位请求应答消息将本地的允许接入时间段信息通知给MTC终端。Further, when the core network element notifies the MTC terminal of the local allowed access time period information, when the MTC terminal is in the connected state and roams to the core network element by handover, the core network element receives the re-entry After the location request message, send a relocation request response message to the core network element of the home network of the MTC terminal, carrying the local allowed access time period information, and notify the local allowed access time period information through the relocation request response message to the MTC terminal.
进一步地，核心网网元将本地的允许接入时间段信息通知给MTC终端时，将本地的允许接入时间段信息通知到该核心网网元所管理的基站；核心网网元所管理的基站将本地的允许接入时间段信息通过系统消息通知到MTC终端。Further, when the core network element notifies the local allowed access time period information to the MTC terminal, the local allowed access time period information is notified to the base station managed by the core network element; The base station notifies the local access time period information to the MTC terminal through a system message.
进一步地，MTC终端，还用于在处于空闲状态，通过小区重选漫游到核心网网元时，向核心网网元发送接入请求消息；Further, the MTC terminal is also used to send an access request message to a core network element when it is in an idle state and roams to a core network element through cell reselection;
核心网网元在接收到接入请求消息后，若允许MTC终端接入，则通过非接入层(NAS)消息将本地的允许接入时间段信息通知到MTC终端；若不允许MTC终端接入，则在附着请求拒绝消息中将本地的允许接入时间段信息通知到MTC终端。After the core network element receives the access request message, if the MTC terminal is allowed to access, the local access time period information is notified to the MTC terminal through a non-access stratum (NAS) message; if the MTC terminal is not allowed to access input, the local access allowed time period information is notified to the MTC terminal in the attach request reject message.
综上所述，本发明通过在MTC终端漫游到拜访网络时，由拜访网络的核心网网元将本地的允许接入时间段信息通知给MTC终端，使MTC终端能够在需要时，根据本地的允许接入时间段信息发起接入请求，解决了MTC终端在漫游网络中无法确定何时发起接入请求才能接入到拜访网络中的问题。To sum up, in the present invention, when the MTC terminal roams to the visited network, the core network element of the visited network notifies the MTC terminal of the local allowed access time period information, so that the MTC terminal can, when needed, according to the local Allowing the access time period information to initiate an access request solves the problem that the MTC terminal cannot determine when to initiate an access request in a roaming network before it can access the visited network.
附图说明Description of drawings
图1是现有技术中基于LTE的MTC网络架构图；Fig. 1 is the MTC network architecture diagram based on LTE in the prior art;
图2是现有技术中具有时间控制特征的ME的时间配置的示意图；Fig. 2 is a schematic diagram of time configuration of ME with time control feature in the prior art;
图3是本发明机器类型通信终端的接入控制方法实施1的流程图；FIG. 3 is a flow chart of Implementation 1 of the access control method for a machine type communication terminal of the present invention;
图4是本发明机器类型通信终端的接入控制方法实施2的流程图；FIG. 4 is a flow chart of Implementation 2 of the access control method for a machine type communication terminal in the present invention;
图5是本发明机器类型通信终端的接入控制方法实施3的流程图。FIG. 5 is a flow chart of Implementation 3 of the access control method for a machine type communication terminal in the present invention.
具体实施方式Detailed ways
现有技术中MTC终端无法获取到拜访网络中修改后的允许接入时间段信息，MTC终端中保留的仍然是在归属网络中签约的允许接入时间段信息，当MTC终端无法获取到拜访网络的允许该MTC终端接入的时间段信息，也就无法获知在何时发起接入请求以接入到拜访网络中，存在很大的局限性。In the prior art, the MTC terminal cannot obtain the modified allowed access time period information in the visited network, and the MTC terminal still retains the allowed access time period information signed in the home network. When the MTC terminal cannot obtain the visited network Therefore, it is impossible to know when to initiate an access request to access the visited network, and there is a great limitation.
下面结合附图对本实施方式进行详细说明。The present embodiment will be described in detail below in conjunction with the accompanying drawings.
实施例1：Example 1:
连接态的MTC终端(简称ME)通过切换的方式漫游到拜访网络时，若归属网络的核心网网元(源核心网网元)和拜访网络的核心网网元(目标核心网网元)的允许接入时间段有重合的部分，且ME在重合的时间段内切入拜访网络，则ME能够成功切换进入到拜访网络中。目标核心网网元(目标MME)可以在切换成功应答过程中，通过切换成功应答消息将本地的允许接入时间段信息通知到ME。如果源核心网网元(源MME)和目标MME的允许接入时间段没有重合的部分，ME在归属网络签约的允许接入时间段内不能成功切换到拜访网络中，目标MME可以在切换失败应答过程中，通过切换失败应答消息将本地的允许接入时间段信息通知给源MME，源MME再通过归属网络的基站(源基站)将允许接入时间段信息通知ME。When a connected MTC terminal (referred to as ME) roams to a visited network through handover, if the core network element of the home network (source core network element) and the core network element of the visited network (target core network element) If the allowed access time periods overlap, and the ME switches to the visited network within the overlapped time period, the ME can successfully switch to the visited network. The target core network element (target MME) may notify the ME of the local access allowed time period information through a handover success response message during the handover success response process. If the permitted access period of the source core network element (source MME) and the target MME do not overlap, the ME cannot successfully switch to the visited network within the permitted access period contracted by the home network, and the target MME can During the response process, the source MME is notified of the local allowed access period information through the handover failure response message, and the source MME notifies the ME of the allowed access period information through the base station of the home network (source base station).
图3是本实施方式ME通过切换的方式漫游到拜访网络时，对ME的接入控制方法，包括：Fig. 3 is the access control method for the ME when the ME roams to the visited network through handover in this embodiment, including:
301：ME位于归属网络中，获取签约信息，签约信息中包含签约的时间段信息；301: The ME is located in the home network and obtains the subscription information, and the subscription information includes the time period information of the subscription;
签约的时间段信息包含该ME的允许接入时间段信息和禁止接入的时间段信息。The time period information of the subscription includes the information of the allowed access time period and the prohibited time period information of the ME.
ME可以在初始附着到网络的过程中获取签约的时间段信息。ME在初始附着到网络时，通过“更新位置流过程”与HSS交互获取该ME的签约信息，签约的时间段信息作为签约信息的一部分。The ME can obtain the time period information of the subscription during the process of initially attaching to the network. When the ME initially attaches to the network, it interacts with the HSS to obtain the subscription information of the ME through the "update location flow process", and the time period information of the subscription is taken as a part of the subscription information.
如果是以MTC分组为粒度进行的签约，那么MTC分组终端签约的时间段信息一致，MTC分组终端获取到的是MTC分组统一的时间段信息。If the subscription is performed at the granularity of the MTC group, the MTC group terminal subscribes to the same time period information, and the MTC group terminal obtains the unified time period information of the MTC group.
302：ME在签约的允许接入时间段内发起附着请求，接入到归属网络后，在移动过程中根据归属网络的基站(源基站)上的测量配置执行测量，且将测量结果上报到源基站；302: The ME initiates an attach request within the allowed access time period of the subscription. After accessing the home network, it performs measurement according to the measurement configuration on the base station (source base station) of the home network during the movement process, and reports the measurement results to the source base station;
303：源基站接收到ME上报的测量结果后，根据预置的RRM(无线资源管理)算法对测量结果进行评价，判断该ME是否需要切换到相邻的拜访网络中的目标基站下，如果源基站判断ME需要切换进入到拜访网络中的目标基站，则向归属网络的MME发送切换请求消息，切换请求消息中携带该ME的标识和目标小区的标识等信息；303: After receiving the measurement result reported by the ME, the source base station evaluates the measurement result according to the preset RRM (Radio Resource Management) algorithm, and judges whether the ME needs to be handed over to the target base station in the adjacent visited network. The base station judges that the ME needs to be handed over to the target base station in the visited network, and then sends a handover request message to the MME of the home network, and the handover request message carries information such as the identity of the ME and the identity of the target cell;
切换流程是基于S1接口的切换流程。The handover procedure is based on the S1 interface.
304：归属网络中的源MME接收到源基站发送的切换请求消息后，向目标MME发送重定位请求消息，消息中携带ME的标识和该ME在源基站中的配置等信息；304: After receiving the handover request message sent by the source base station, the source MME in the home network sends a relocation request message to the target MME, and the message carries information such as the identifier of the ME and the configuration of the ME in the source base station;
305：目标MME接收到重定位请求消息后，根据本地的过载状况修改ME签约的允许接入时间段信息，修改后的允许接入时间段信息保存在本地，作为本地的允许接入时间段信息，将该时间段信息作为该ME接入到网络的接入控制参数；305: After receiving the relocation request message, the target MME modifies the allowed access period information subscribed by the ME according to the local overload condition, and the modified allowed access period information is stored locally as the local allowed access period information , using the time period information as an access control parameter for the ME to access the network;
目标MME可以通过与HSS的接口，根据ME的标识从HSS中获取该ME签约的允许接入时间段信息。The target MME can obtain the access period information subscribed by the ME from the HSS according to the identifier of the ME through the interface with the HSS.
本地的允许接入时间段信息可以如上所述是针对ME签约的允许接入时间段信息，根据本地的过载状况等进行修改后得到的时间段信息，也可以是拜访网络中的目标MME直接根据本地的过载状况，针对一个、多个或一类MTC终端配置的允许接入时间段信息。The local allowed access time range information may be the time range information obtained after modifying the allowed access time range information subscribed by the ME according to the local overload status as described above, or it may be the target MME in the visited network directly according to The local overload status, and the allowed access period information configured for one, multiple or one type of MTC terminals.
目标MME可以以单个ME或MTC分组为粒度修改允许接入时间段信息。在拜访网络中，目标MME修改允许接入时间段信息后，修改得到本地的允许接入时间段信息与归属网络中签约的允许接入时间段信息可能有重合的部分，也可能没有重合的部分。The target MME can modify the allowed access period information at the granularity of a single ME or an MTC group. In the visited network, after the target MME modifies the allowed access time range information, the modified local allowed access time range information and the subscribed allowed access time range information in the home network may or may not overlap. .
306：目标MME向归属网络中的源MME发送重定位请求应答消息，如果ME的切换时刻在拜访网络本地的允许接入时间段内，则ME可以成功切换到拜访网络的目标基站中，目标MME在重定位请求应答消息中携带“请求接受”原因值；如果ME的切换时刻不在拜访网络本地的允许接入时间段内，则ME不能成功切换到目标基站中，目标MME在重定位请求应答消息中携带“重定位失败”原因值；重定位请求应答消息中均要携带拜访网络本地的允许接入时间段信息；306: The target MME sends a relocation request response message to the source MME in the home network. If the handover time of the ME is within the local access time period of the visited network, the ME can successfully handover to the target base station of the visited network, and the target MME The reason value of "request accepted" is carried in the Relocation Request Response message; if the handover time of the ME is not within the local allowed access time period of the visited network, the ME cannot be successfully handed over to the target base station, and the target MME will send the message in the Relocation Request Response message. Carry the reason value of "relocation failure"; the relocation request response message must carry the local access time period information of the visited network;
拜访网络中的目标MME在重定位请求应答过程中，发送重定位请求应答消息。重定位请求应答消息中携带的本地的允许接入时间段信息作为重定位请求应答消息中的一个信元，目前重定位请求应答消息中有留作私有扩展的字段域，可以将时间段信息作为私有扩展字段域内容。The target MME in the visited network sends a Relocation Request Reply message during the Relocation Request Reply process. The local allowed access time period information carried in the Relocation Request Reply message is used as an information element in the Relocation Request Reply message. Currently, there are fields reserved for private extension in the Relocation Request Reply message, and the time period information can be used as Private extension field domain content.
307：源MME接收到重定位请求应答消息后，检查该消息携带的原因值，如果检查出“请求接受”原因值，则认为该ME可以成功切换入目标基站，向源基站发起切换命令过程，在切换命令过程中将拜访网络本地的允许接入时间段信息通知到ME；如果重定位请求应答消息中携带的是“重定位失败”原因值，则认为该ME不能成功切换入目标基站，执行步骤307a；307: After receiving the Relocation Request Response message, the source MME checks the cause value carried in the message. If the cause value of "request accepted" is checked out, it is considered that the ME can successfully switch to the target base station, and initiates a handover command process to the source base station. During the handover command process, notify the ME of the local access time period information of the visited network; if the relocation request response message carries the cause value of "relocation failure", it is considered that the ME cannot be successfully handed over to the target base station, and execute Step 307a;
拜访网络本地的允许接入时间段信息作为切换命令中新增的一个信元内容。The local allowed access time period information of the visited network is used as a newly added information element content in the handover command.
307a：源MME向源基站发起切换准备失败过程，在切换准备失败过程中向源基站发送切换准备失败消息，在切换准备失败消息中携带拜访网络本地的允许接入时间段信息，源基站通过空口的系统消息或者寻呼消息将拜访网络本地的允许接入时间段信息通知到ME；307a: The source MME initiates the handover preparation failure process to the source base station, sends a handover preparation failure message to the source base station during the handover preparation failure process, and carries the local access time period information of the visited network in the handover preparation failure message, and the source base station passes the air interface The system message or paging message notifies the ME of the local access time period information of the visited network;
系统消息可以是现有技术中的SIB消息，比如SIB2消息，或者是为MTC终端新增的系统消息，专用于向ME传送上述时间段信息。The system message may be a SIB message in the prior art, such as a SIB2 message, or a system message newly added for an MTC terminal, which is specially used to transmit the above time period information to the ME.
ME获取到拜访网络本地的允许接入时间段信息后，可以在允许接入时间段内发起接入请求。After the ME obtains the information of the local allowed access time period of the visited network, it can initiate an access request within the allowed access time period.
308：源基站在源MME发起的切换命令过程中，获取到拜访网络本地的允许接入时间段信息，源基站判断ME可以切换进入目标基站，向ME发送RRC(无线资源控制)连接重配消息，携带拜访网络本地的允许接入时间段信息。308: The source base station obtains the local access period information of the visited network during the handover command initiated by the source MME, the source base station judges that the ME can switch to the target base station, and sends an RRC (radio resource control) connection reconfiguration message to the ME , which carries the information about the allowed access period of the visited network.
实施例2：Example 2:
拜访网络中的目标MME可以将针对某个ME或某类ME的本地的允许接入时间段信息通知到目标基站，某类ME可以是按照业务类型对ME进行分类、按照group对ME进行分类或者按照优先级对ME进行分类。目标基站通过系统消息将本地的允许接入时间段信息通知到ME。处于IDLE(空闲)态的ME通过小区重选的方式进入拜访网络或处于连接态的ME通过切换的方式进入拜访网络时，ME通过广播消息获取到本地的允许接入时间段信息，保存获取到的时间段信息，在该时间段内发起附着请求。The target MME in the visited network can notify the target base station of the local access time period information for a certain ME or a certain type of ME. A certain type of ME can classify MEs according to service types, classify MEs according to groups, or classify MEs according to groups. Classify MEs according to priority. The target base station notifies the ME of the local allowed access period information through a system message. When an ME in the IDLE state enters the visited network through cell reselection or a ME in the connected state enters the visited network through handover, the ME obtains the local access time period information through a broadcast message, and saves the obtained The time period information, and the attach request is initiated within this time period.
图4是本实施方式ME通过小区重选或切换的方式漫游到拜访网络时，对ME的接入控制方法，包括：Fig. 4 is the access control method for the ME when the ME roams to the visited network through cell reselection or handover in this embodiment, including:
401：目标MME配置本地的允许接入时间段信息，进行保存，作为ME接入到网络的接入控制参数；401: The target MME configures the local allowed access time period information, saves it, and uses it as an access control parameter for the ME to access the network;
本地的允许接入时间段信息可以是针对从HSS中获取的某些或某类ME签约的允许接入时间段信息，根据本地的过载状况和系统维护时间等进行修改后得到的时间段信息，也可以是拜访网络中的目标MME直接根据本地的过载状况和系统维护时间等，针对一个、多个或一类MTC终端配置的针对某些或某类ME的允许接入时间段信息。The local allowed access time period information can be the time period information obtained after modification according to the local overload situation and system maintenance time for some or a certain type of ME subscribed allowed access time period information obtained from the HSS, It may also be the allowed access time period information for some or a certain type of ME configured by the target MME in the visited network for one, multiple or one type of MTC terminals directly according to the local overload status and system maintenance time.
拜访网络本地的允许接入时间段信息与归属网络中签约的允许接入时间段信息可能有重合的部分，也可能没有重合的部分。The local allowed access time period information of the visited network and the subscribed allowed access time period information in the home network may or may not overlap.
402：目标MME将本地的允许接入时间段信息通过S1接口流程通知到目标基站；402: The target MME notifies the target base station of the local allowed access period information through the S1 interface process;
目标MME通知本地的允许接入时间段信息的S1接口流程有多种，包括：S1接口建立过程、配置更新过程和过载开始过程。在上述过程中，可以采用的对应消息是S1接口建立请求应答消息、配置更新请求应答消息和过载开始消息。本地的允许接入时间段信息作为上述消息中的一个扩展信息单元的内容，通过上述三种消息由目标MME通知到目标基站。There are multiple S1 interface processes for the target MME to notify the local access time period information, including: S1 interface establishment process, configuration update process and overload start process. In the above process, the corresponding messages that can be used are the S1 interface establishment request reply message, the configuration update request reply message and the overload start message. The local access allowed time period information is used as the content of an extended information element in the above message, and is notified by the target MME to the target base station through the above three messages.
403：目标基站将本地的允许接入时间段信息通过系统消息通知到ME；403: The target base station notifies the ME of the local allowed access period information through a system message;
基站可以通过系统消息中的SIB2消息，或者为传送ME专用的信息而新增的系统消息。时间信息作为系统消息的信元通知到ME。The base station may use the SIB2 message in the system message, or the newly added system message for transmitting ME-specific information. The time information is notified to the ME as an IE of the system message.
404：进入到拜访网络中的ME，读取拜访网络中目标基站发送的系统消息的内容，通过系统消息获取到本地的允许接入时间段信息；404: Enter the ME in the visited network, read the content of the system message sent by the target base station in the visited network, and obtain the local access time period information through the system message;
405：ME在拜访网络本地的允许接入时间段内发起接入过程，即可成功接入到网络。405: The ME can successfully access the network by initiating the access process within the local allowed access time period of the visited network.
实施例3：Example 3:
拜访网络中的目标MME可以通过NAS(非接入层)信令将本地的允许接入时间段信息通知到ME。如果是IDLE态的ME通过小区重选(漫游到拜访网络后)的方式进入到拜访网络的目标MME管理的区域，那么ME不知道目标MME本地的允许接入时间段信息。ME向核心网发起附着请求，如果是在拜访网络本地的允许接入时间段内发起的附着请求，那么核心网允许ME接入，ME可以成功接入到网络，核心网网元在接入过程中通过NAS消息中的允许接入应答消息(attach accept)将本地的允许接入时间段信息通知到ME，或者通过周期性的更新过程将本地的允许接入时间段信息通知到ME；如果ME发起附着请求的时间不在本地的允许接入时间段内，核心网网元不允许ME接入，ME接入不成功。核心网网元通过接入过程给ME发送NAS消息中的拒绝附着消息，在拒绝附着消息中将本地的允许接入时间段信息通知到ME。The target MME in the visited network may notify the ME of the local access allowed time period information through NAS (Non-Access Stratum) signaling. If the ME in the IDLE state enters the area managed by the target MME of the visited network through cell reselection (after roaming to the visited network), the ME does not know the local access period information of the target MME. The ME initiates an attach request to the core network. If the attach request is initiated within the allowed access time period of the visited network, the core network allows the ME to access, and the ME can successfully access the network. Notify the ME of the local allowable time period information through the allowable access response message (attach accept) in the NAS message, or notify the ME of the local allowable time period information through the periodic update process; if the ME The time when the attach request is initiated is not within the local allowed access period, the core network element does not allow the ME to access, and the ME access fails. The network element of the core network sends the attach rejection message in the NAS message to the ME through the access process, and notifies the local access time period information to the ME in the attach rejection message.
图5是本实施方式ME通过小区重选的方式漫游到拜访网络时，对ME的接入控制方法，包括：Fig. 5 shows the access control method for ME when the ME roams to the visited network through cell reselection in this embodiment, including:
501：目标MME配置本地的允许接入时间段信息，进行保存，作为ME接入到网络的接入控制参数；501: The target MME configures the local allowed access time period information, saves it, and uses it as an access control parameter for the ME to access the network;
本地的允许接入时间段信息可以是针对从HSS中获取的某些或某类ME签约的允许接入时间段信息，根据本地的过载状况和系统维护时间等进行修改后得到的时间段信息，也可以是拜访网络中的目标MME直接根据本地的过载状况和系统维护时间等，针对一个、多个或一类MTC终端配置的针对某些或某类ME的允许接入时间段信息。The local allowed access time period information can be the time period information obtained after modification according to the local overload situation and system maintenance time for some or a certain type of ME subscribed allowed access time period information obtained from the HSS, It may also be the allowed access time period information for some or a certain type of ME configured by the target MME in the visited network for one, multiple or one type of MTC terminals directly according to the local overload situation and system maintenance time.
拜访网络本地的允许接入时间段信息与归属网络中签约的允许接入时间段信息可能有重合的部分，也可能没有重合的部分。The local allowed access time period information of the visited network and the subscribed allowed access time period information in the home network may or may not overlap.
502：IDLE态的ME通过小区重选过程进入到拜访网络中的基站覆盖区域；502: The ME in the IDLE state enters the coverage area of the base station in the visited network through the cell reselection process;
本实施方式中，接入控制过程在核心网执行，基站不对该ME做接入控制。In this embodiment, the access control process is performed in the core network, and the base station does not perform access control on the ME.
503：根据业务需求，ME在拜访网络中发起附着过程，ME向拜访网络中的核心网网元发送附着请求消息；503: According to service requirements, the ME initiates an attach process in the visited network, and the ME sends an attach request message to the core network element in the visited network;
504：如果是在拜访网络中的核心网网元本地的允许接入时间段内发起附着请求，那么该核心网网元允许ME接入到核心网，通过NAS过程将拜访网络本地的允许接入的时间信息通知到ME；504: If the attach request is initiated within the local allowed access time period of the core network element in the visited network, then the core network element allows the ME to access the core network, and the local allowed access of the visited network is passed through the NAS process. Notify ME of the time information;
所述NAS过程可以是附着请求应答过程、周期性TAU(跟踪域更新文)过程或者是为MTC架构新增的NAS过程。与上述过程对应的消息可以是附着请求接受消息、周期性的TAU消息或者是为传送MTC专用信息新增的NAS消息。在所述信令中，核心网网元MME将本地的允许接入时间段信息通知到ME，该时间段信息作为NAS消息中的一个信元传送。The NAS process may be an attach request response process, a periodic TAU (Tracking Area Update) process, or a newly added NAS process for the MTC architecture. The message corresponding to the above process may be an attach request accept message, a periodic TAU message, or a newly added NAS message for transmitting MTC-specific information. In the signaling, the network element MME of the core network notifies the ME of the local access allowed time period information, and the time period information is transmitted as an information element in the NAS message.
需要说明的是，如果在附着请求接受消息中没有将本地的允许接入时间段信息通知到ME，那么核心网网元MME可以采用上述的其他NAS过程，单独将本地的允许接入时间段信息通知到ME。It should be noted that if the local access allowed time period information is not notified to the ME in the attach request accept message, then the core network element MME can use the above-mentioned other NAS procedures to separately notify the local access allowed time period information Notify ME.
504a：如果ME没有在拜访网络本地的允许接入时间段内发起附着请求，那么拜访网络中的MME不允许ME接入到网络，在附着请求拒绝消息中将本地的允许接入时间段信息通知到ME。504a: If the ME does not initiate an attach request within the local allowed access time period of the visited network, then the MME in the visited network does not allow the ME to access the network, and notifies the local allowed access time period information in the attach request rejection message to ME.
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成，程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的各模块可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本发明不限制于任何特定形式的硬件和软件的结合。Those of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a magnetic disk, or an optical disk. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module in the foregoing embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules. The present invention is not limited to any specific combination of hardware and software.
当然，本发明还可有多种实施方式，在不背离本发明精神及其实质的情况，熟悉本领域的技术人员当可根据本发明做出各种相应的更改或变化，但凡在本发明的精神和原则之内所作的任何修改、等同替换、改进，均应包含在本发明的保护范围之内。Certainly, the present invention also can have multiple implementation modes, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes or changes according to the present invention, as long as the Any modifications, equivalent replacements, and improvements made within the spirit and principles shall be included within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010294603.9ACN102413450B (en) | 2010-09-21 | 2010-09-21 | Access control method of machine type communication terminal and system thereof |
| PCT/CN2011/077552WO2012037839A1 (en) | 2010-09-21 | 2011-07-25 | Controlled access method and system for machine-type communication terminal |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010294603.9ACN102413450B (en) | 2010-09-21 | 2010-09-21 | Access control method of machine type communication terminal and system thereof |
| Publication Number | Publication Date |
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| CN102413450A CN102413450A (en) | 2012-04-11 |
| CN102413450Btrue CN102413450B (en) | 2014-12-10 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201010294603.9AExpired - Fee RelatedCN102413450B (en) | 2010-09-21 | 2010-09-21 | Access control method of machine type communication terminal and system thereof |
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| CN (1) | CN102413450B (en) |
| WO (1) | WO2012037839A1 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984699B (en)* | 2012-12-03 | 2016-02-17 | 中国联合网络通信集团有限公司 | D2D processing method of communication data, equipment and system |
| JP6256602B2 (en)* | 2013-09-27 | 2018-01-10 | 日本電気株式会社 | Communication system, communication method, core network node, and mobility management method |
| CN109076446B (en)* | 2016-09-07 | 2020-09-29 | 华为技术有限公司 | Access control method and device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020162008A1 (en)* | 2000-01-28 | 2002-10-31 | Vincent Hill | Method and system for controlling access to a telecommunication or internet system |
| EP2096884A1 (en)* | 2008-02-29 | 2009-09-02 | Koninklijke KPN N.V. | Telecommunications network and method for time-based network access |
| CN101742452B (en)* | 2008-11-10 | 2012-08-29 | 华为技术有限公司 | Load bearing management method, relevant equipment and network system |
| CN101730136A (en)* | 2009-11-26 | 2010-06-09 | 中国电信股份有限公司 | Processing method and system for M2M terminal call |
| Publication number | Publication date |
|---|---|
| WO2012037839A1 (en) | 2012-03-29 |
| CN102413450A (en) | 2012-04-11 |
| Publication | Publication Date | Title |
|---|---|---|
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