WO2013091371A1 - 一种终端接入方法及系统 - Google Patents

一种终端接入方法及系统 Download PDF

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Publication number
WO2013091371A1
WO2013091371A1 PCT/CN2012/077894 CN2012077894W WO2013091371A1 WO 2013091371 A1 WO2013091371 A1 WO 2013091371A1 CN 2012077894 W CN2012077894 W CN 2012077894W WO 2013091371 A1 WO2013091371 A1 WO 2013091371A1
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Prior art keywords
terminal
network
measurement
heterogeneous
functional entity
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PCT/CN2012/077894
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English (en)
French (fr)
Inventor
韦玉珍
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中兴通讯股份有限公司
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Publication of WO2013091371A1 publication Critical patent/WO2013091371A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a terminal access method and system.
  • LTE Long Term Evolution
  • BACKGROUND OF THE INVENTION Long Term Evolution (LTE) network technology is an emerging network technology, and high-speed data services are significant advantages.
  • network construction is a gradual process. In the initial stage of network construction, local coverage or hotspot coverage is adopted. It may happen that LTE network parts can provide packet switching (PS) services, but the coverage of PS services cannot be fully covered. This results in LTE networks using Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) or Enhanced Data Rate for GSM (EDGE, Enhanced Data Rate for GSM) for a long time. Evolution)
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • EDGE Enhanced Data Rate for GSM
  • GSM Enhanced Data Rate for GSM
  • the LTE network has complete heterogeneous interaction function
  • MME Mobility Management Entity
  • SGSN Serving GPRS Support Node
  • PGW Public Data Network gateway
  • the main object of the present invention is to provide a terminal access method and system, which can implement access between different wireless networks of a terminal under the premise of ensuring service continuity.
  • a terminal access method includes:
  • the network side functional entity After the terminal accesses the network, the network side functional entity starts the measurement preset for the terminal according to the wireless network system currently accessed by the terminal;
  • the network side functional entity starts the preset measurement according to the wireless network standard currently accessed by the terminal:
  • the network side functional entity initiates neighboring zone worse event measurement and heterogeneous better event measurement.
  • the method further includes: the terminal monitoring the LTE neighboring cell, when monitoring that all LTE neighboring cell measurement signals are smaller than a preset threshold and the duration reaches a preset time, the terminal The measurement of the worse event measurement in the upper part of the ⁇ ⁇ ⁇ .
  • the redirection decision is performed according to the measurement report reported by the terminal: when the network side functional entity receives the measurement report of the neighboring area worse event measurement reported by the terminal, and receives the terminal monitoring the TD-SCDMA Or when the GSM network meets the measurement report of the heterogeneous better event measurement reported when the heterogeneous better condition is met, the cross-system redirection of the initiating terminal is determined.
  • the network side functional entity starts the preset measurement according to the wireless network standard currently accessed by the terminal:
  • the network side functional entity initiates a heterogeneous better event measurement. the amount.
  • the method further includes: the terminal monitoring the LTE neighboring cell, and when monitoring the appropriate LTE neighboring cell, the terminal reporting the measurement report of the heterogeneous better event measurement.
  • the redirection decision is performed according to the measurement report reported by the terminal: when the network side functional entity receives the measurement report of the heterogeneous better event measurement reported by the terminal, determining the cross-system redirection of the initiating terminal.
  • a terminal access system includes: a network side functional entity and a terminal; wherein the network side functional entity is configured to start after the terminal accesses the network according to the wireless network standard currently accessed by the terminal Pre-set measurement for the terminal; performing a redirection decision according to the measurement report on the terminal; and redirecting the terminal according to the result of the redirection decision.
  • the network side function entity is configured to start neighboring zone worse event measurement and heterogeneous better event measurement when the terminal currently accessing the wireless network is an LTE network.
  • the terminal is configured to monitor the LTE neighboring cell. When all the LTE neighboring cell measurement signals are less than the preset threshold and the duration reaches a preset time, the terminal reports a measurement error of the worse event measurement in the neighboring cell.
  • the network side functional entity is configured to receive the measurement of the worse event measurement of the neighboring cell reported by the terminal, and receive the better condition that the terminal monitors the TD-SCDMA or the GSM network to meet the heterogeneous condition.
  • the network side functional entity When reporting a measurement report of a heterogeneous better event measurement, it is determined that the cross-system redirection of the terminal is initiated.
  • the network side functional entity is configured to start a heterogeneous better event measurement when the wireless network currently accessed by the terminal is a TD-SCDMA or GSM network.
  • the terminal is further configured to monitor the LTE neighboring cell, and report a measurement report of the heterogeneous better event measurement when the appropriate LTE neighboring cell is monitored.
  • the network side function entity is configured to: after receiving the measurement report of the heterogeneous better event measurement reported by the terminal, determine to initiate the cross-system redirection of the terminal.
  • the preset measurement is set for the terminal, and the access between different wireless network modes of the terminal can be realized under the premise of ensuring service continuity, in particular
  • the LTE network can be used as the access network for the multi-mode single-standby or dual-mode single-standby terminal, and the advantages of the LTE network can be fully utilized to realize the continuity of the data service.
  • FIG. 1 is a schematic flowchart of an implementation process of a terminal access method according to the present invention
  • FIG. 2 is a schematic flowchart of an implementation of a terminal access method according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of a second embodiment of a terminal access method according to the present invention. detailed description
  • the basic idea of the present invention is: after the terminal accesses the network, the network-side functional entity starts different measurements preset for the terminal according to the wireless network standard currently accessed by the terminal; and performs a redirection decision according to the measurement report reported by the terminal; As a result of the redirection decision, the terminal is redirected.
  • FIG. 1 is a schematic diagram of an implementation process of a terminal access method according to the present invention. As shown in FIG. 1, the method includes the following steps:
  • Step 101 After the terminal accesses the network, the network side functional entity starts the measurement preset for the terminal according to the wireless network standard currently accessed by the terminal;
  • the network-side functional entity when the wireless network currently accessed by the terminal is an LTE network, the network-side functional entity starts neighboring area worse event measurement and heterogeneous better event measurement; when the terminal currently accesses the wireless network When the network is a TD-SCDMA or GSM network, the network-side functional entity initiates a heterogeneous better event measurement; wherein the neighboring zone worse event measurement is used to measure whether the LTE neighboring cell of the terminal is smaller than a preset threshold.
  • the terminal reports the measurement report of the measurement; the heterogeneous better event measurement It is used to measure whether the wireless network system other than the wireless network that the terminal measures its own access has a more suitable cell, and if so, the terminal reports the measured measurement.
  • the terminal monitors the LTE neighboring cell.
  • the measurement signal of all LTE neighboring cells is less than the preset threshold of the network side and the duration reaches the preset time, the terminal reports the neighboring cell. Measurement report of the worse event measurement in the area.
  • the terminal monitors the LTE neighboring cell.
  • the terminal reports a measurement report of the heterogeneous better event measurement.
  • Step 102 Perform a redirection decision according to the measurement report reported by the terminal.
  • the network side functional entity receives the measurement report of the neighboring area worse event measurement reported by the terminal, and receives the terminal monitoring the TD-
  • the SCDMA or GSM network satisfies the measurement report of the heterogeneous better event measurement reported in the heterogeneous better condition, the cross-system redirection of the initiating terminal is determined.
  • the network side functional entity determines the cross-standard redirection of the initiating terminal after receiving the measurement report of the heterogeneous better event measurement reported by the terminal.
  • Step 103 Redirect the terminal according to the result of the redirection decision.
  • the network side functional entity acquires a system message of the TD-SCDMA or GSM cell in the measurement, and sends the message to the terminal through the connection release message, releasing the terminal. a connection under the LTE network; after receiving the connection release message of the network side functional entity, the terminal releases the connection and selects a TD-SCDMA or GSM cell to camp, and according to the service situation or the user request in the TD-SCDMA or GSM network Continue the PS business.
  • the network-side functional entity acquires the system message of the LTE cell in the measurement report reported by the terminal, and sends the message to the terminal through the connection release message, releasing the terminal in TD-SCDMA. Or the connection under the GSM network; after receiving the connection release message of the network side functional entity, the terminal releases the connection, selects an LTE cell to camp, and continues the PS service on the LTE network according to the service situation or the user request.
  • FIG. 2 is a schematic flowchart of an implementation manner of a method for accessing a terminal according to Embodiment 1 of the present invention. As shown in FIG. 2, the first embodiment includes the following steps:
  • Step 201 After the terminal accesses the LTE, the network side functional entity sets a neighboring zone worse event measurement and a heterogeneous better event measurement for the terminal;
  • the network side functional entity determines whether the terminal supports the TD-SCDMA or the GSM wireless network standard according to the terminal capability information after the terminal sets the neighboring zone worse event measurement. When supported, sets the heterogeneous mode for the terminal. Better event measurement.
  • Step 202 The network side functional entity starts different measurement set for the terminal;
  • Step 203 The network side functional entity performs a redirection decision according to the measurement report reported by the terminal; wherein, when the network side functional entity starts the neighboring area worse event measurement
  • the terminal monitors the LTE neighboring cell. When it is monitored that all the LTE neighboring cell measurement signals are smaller than the preset threshold of the network side and the duration reaches a preset time, the terminal reports a measurement report of the worse event measurement in the neighboring cell;
  • the network side functional entity After the network side functional entity receives the measurement report of the neighboring area worse event measurement reported by the terminal, and receives the heterogeneous better event reported by the terminal when monitoring the TD-SCDMA or GSM network to meet the better condition of the heterogeneous system When measuring the measurement report, determine the cross-system redirection of the boot terminal.
  • Step 204 The network side functional entity redirection the terminal according to the result of the redirection decision.
  • the network side function entity acquires a system message of the TD-SCDMA or the GSM cell in the measurement report, and sends the message to the terminal through the connection release message, releasing the terminal under the LTE network.
  • the terminal releases the connection, selects a TD-SCDMA or GSM cell to camp, and continues the PS on the TD-SCDMA or GSM network according to the service situation or the user request. business.
  • FIG. 3 is a schematic diagram of an implementation process of a method for accessing a terminal according to Embodiment 2 of the present invention. As shown in FIG. 3, the second embodiment includes the following steps:
  • Step 301 After the terminal accesses TD-SCDMA or GSM, the network side functional entity sets a heterogeneous better event measurement for the terminal;
  • the network side functional entity determines whether the terminal supports the LTE wireless network standard according to the terminal capability information, and when supported, sets a heterogeneous better event measurement for the terminal.
  • Step 302 The network side functional entity starts a heterogeneous better event measurement set for the terminal.
  • Step 303 The network side functional entity performs a redirection decision according to the measurement report reported by the terminal.
  • the network side functional entity receives the measurement report of the heterogeneous better event measurement reported by the terminal. , determine the cross-system redirection of the boot terminal.
  • Step 304 The network side functional entity redirection the terminal according to the result of the redirection decision.
  • the network side function entity obtains the system message of the LTE cell in the measurement report reported by the terminal, and sends the message to the terminal through the connection release message, and releases the connection of the terminal in the TD-SCDMA or GSM network; the terminal receives the network side functional entity After the connection release message, the connection is released, and an LTE cell camp is selected, and the PS service is continued on the LTE network according to the service situation or the user request.
  • FIG. 4 is a schematic structural diagram of a terminal access system according to the present invention. As shown in FIG. 4, the system includes: a network side functional entity 41 and a terminal 42;
  • the network side function entity 41 is configured to start, according to the wireless network standard currently accessed by the terminal 42, the preset preset for the terminal 42 after the terminal 42 accesses the network;
  • the measurement report reported by the terminal 42 performs a redirection decision; and the terminal 42 is redirected according to the result of the redirection decision.
  • the network side function entity 41 is configured to start a neighboring zone worse event measurement and a heterogeneous better event measurement when the wireless network currently accessed by the terminal 42 is an LTE network.
  • the terminal 42 is configured to monitor the LTE neighboring area, and when the measurement signal of all the LTE neighboring cells is less than the preset threshold of the network side and the duration reaches the preset time, the measurement report of the worse event measurement of the neighboring cell is reported.
  • the network side function entity 41 is configured to receive the measurement report of the neighboring area worse event measurement on the terminal 42, and receive the terminal 42 to monitor the TD-SCDMA or the GSM network to meet the different conditions.
  • the system reports a measurement report of a heterogeneous better event measurement when the condition is better, it is determined that the cross-system redirection of the terminal 42 is initiated.
  • the network side functional entity 41 is configured to initiate heterogeneous better event measurement when the wireless network currently accessed by the terminal 42 is a TD-SCDMA or GSM network.
  • the terminal 42 is further configured to monitor the LTE neighboring area, and report a measurement report of the heterogeneous better event measurement when the appropriate LTE neighboring area is monitored.
  • the network side function entity 41 is configured to: after receiving the measurement report of the heterogeneous better event measurement reported by the terminal 42, determine to initiate the cross-system redirection of the terminal 42.
  • the preset measurement is set for the terminal, and the access between different wireless network modes of the terminal can be realized under the premise of ensuring service continuity, in particular
  • the LTE network can be used as the access network for the multi-mode single-standby or dual-mode single-standby terminal, and the advantages of the LTE network can be fully utilized to realize the continuity of the data service.

Abstract

本发明公开了一种终端接入方法及系统，所述方法包括：当终端接入网络后，网络侧功能实体根据终端当前接入的无线网络制式，启动为终端预先设置的测量；根据终端上报的测量报告，进行重定向判决；根据所述重定向判决的结果，对终端进行重定向。本发明通过在终端接入网络后，根据接入网络的不同制式，启动为所述终端预先设置的测量，能够在保证业务连续性的前提下，实现终端不同无线网络制式间的接入，尤其可以为多模单待或双模单待终端优选LTE网络作为接入网络，充分利用LTE网络的优势，充分考虑了LTE网络初期覆盖的特点，实现数据业务的连续性。

Description

一种终端接入方法及系统 技术领域
本发明涉及移动通讯技术领域， 尤其涉及一种终端接入方法及系统。 背景技术 长期演进（LTE, Long Term Evolution ) 网络技术作为一种新兴网络技 术， 高速率的数据业务是其显著的优势。 然而， 网络建设是一个循序渐进 的过程， 网络建设初期采用局部覆盖或热点覆盖， 可能会出现 LTE网络部 分地区能提供分組交换（PS, Packet Switching )业务， 但不能实现 PS业务 全覆盖的场景。 这就导致 LTE网络在很长一段时间内会借助时分同步码分 多址接入 ( TD-SCDMA, Time Division-Synchronous Code Division Multiple Access )或增强型数据速率 GSM演进（ EDGE, Enhanced Data Rate for GSM Evolution )技术的无线接入网络 ( RAN, Radio Access Network )即 GERAN 网络的分组域的覆盖来保证业务本身的覆盖。
然而要使 LTE 网络具有完备异制式交互功能， 以实现 LTE 网络和 TD-SCDMA网络或 GERAN网络的完全交互并不太容易， 尤其是 PSHO功 能，要支持 LTE到 TD-SCDMA的切换，不仅接入网要改，核心网也要改，移 动性管理实体（MME, Mobility Management Entity )和服务 GPRS支持节 点（ SGSN, Serving GPRS Support Node )、 SGSN和公用数据网（ PDN, Public Data Network )网关（PGW )都需要支持新的业务接口， 实现难度大， 而且 测试稳定周期也比较长。 因此 LTE网络运行初期， 如何提供一种简化的实 现制式间互操作的机制以实现 PS数据业务在终端，如双模单待终端上的延 续性是 待解决的问题。 发明内容
有鉴于此， 本发明的主要目的在于提供一种终端接入方法及系统， 能 够在保证业务连续性的前提下， 实现终端不同无线网络间的接入。
为达到上述目的， 本发明的技术方案是这样实现的：
一种终端接入方法， 所述方法包括：
当终端接入网络后， 网络侧功能实体根据终端当前接入的无线网络制 式， 启动为终端预先设置的测量；
根据终端上报的测量报告， 进行重定向判决；
根据所述重定向判决的结果， 对终端进行重定向。
其中， 所述网络侧功能实体根据终端当前接入的无线网络制式， 启动 预设的测量为：
当终端当前接入的无线网络为 LTE网络时， 网络侧功能实体启动邻区 更差事件测量和异制式更好事件测量。
优选地， 在所述根据终端上报的测量报告之前， 所述方法还包括： 终端监控 LTE邻区， 当监控到所有 LTE邻区测量信号小于预设的门限 且持续时间达到预设时间时， 终端上 ·ί艮部区更差事件测量的测量 ^艮告。
其中， 所述根据终端上报的测量报告， 进行重定向判决为： 当网络侧功能实体接收到终端上报的邻区更差事件测量的测量报告 后， 且接收到所述终端在监控到 TD-SCDMA或 GSM网络满足异制式更好 条件时上报的异制式更好事件测量的测量报告时， 确定启动终端的跨制式 重定向。
其中， 所述网络侧功能实体根据终端当前接入的无线网络制式， 启动 预设的测量为：
当终端当前接入的无线网络为时分同步码分多址接入网络 TD-SCDMA 或全球移动通信系统 GSM网络时， 网络侧功能实体启动异制式更好事件测 量。
优选地， 在所述根据终端上报的测量报告之前， 所述方法还包括： 终端监控 LTE邻区， 当监控到合适的 LTE邻区时， 终端上报异制式更 好事件测量的测量报告。
其中， 所述根据终端上报的测量报告， 进行重定向判决为： 当网络侧功能实体接收到终端上报的异制式更好事件测量的测量报告 后， 确定启动终端的跨制式重定向。
一种终端接入系统， 所述系统包括： 网络侧功能实体和终端； 其中， 所述网络侧功能实体， 用于在终端接入网络后， 根据所述终端当前接 入的无线网络制式， 启动为终端预先设置的测量； 根据所述终端上 ^艮的测 量报告， 进行重定向判决； 根据所述重定向判决的结果， 对终端进行重定 向。
其中， 所述网络侧功能实体， 用于当所述终端当前接入的无线网络为 LTE网络时， 启动邻区更差事件测量和异制式更好事件测量。
其中， 所述终端， 用于监控 LTE邻区， 当监控到所有 LTE邻区测量信 号小于预设的门限且持续时间达到预设时间时， 上报邻区更差事件测量的 测量艮告。
其中， 所述网络侧功能实体， 用于接收到终端上报的邻区更差事件测 量的测量>¾告后， 且接收到所述终端在监控到 TD-SCDMA或 GSM网络满 足异制式更好条件时上报的异制式更好事件测量的测量报告时， 确定启动 所述终端的跨制式重定向。
其中， 所述网络侧功能实体， 用于当终端当前接入的无线网络为 TD-SCDMA或 GSM网络时， 启动异制式更好事件测量。
优选地， 所述终端， 还用于监控 LTE邻区， 当监控到合适的 LTE邻区 时， 上报异制式更好事件测量的测量报告。 其中， 所述网络侧功能实体， 用于接收到所述终端上报的异制式更好 事件测量的测量报告后， 确定启动所述终端的跨制式重定向。
本发明通过在终端接入网络后， 根据接入网络的不同制式， 启动为所 述终端预先设置的测量， 能够在保证业务连续性的前提下， 实现终端不同 无线网絡制式间的接入， 尤其可以为多模单待或双模单待终端优选 LTE网 络作为接入网络， 充分利用 LTE网络的优势， 实现了数据业务的连续性。 附图说明
图 1为本发明终端接入方法的实现流程示意图；
图 2为本发明终端接入方法的实施例一的实现流程示意图； 图 3为本发明终端接入方法的实施例二的实现流程示意图； 图 4为本发明终端接入系统的结构示意图。 具体实施方式
本发明的基本思想为： 当终端接入网络后， 网络侧功能实体根据终端 当前接入的无线网络制式， 启动为终端预先设置的不同测量； 根据终端上 报的测量报告， 进行重定向判决； 根据所述重定向判决的结果， 对终端进 行重定向。
为使本发明的目的、 技术方案和优点更加清楚明白， 以下举实施例并 参照附图， 对本发明进一步详细说明。
图 1为本发明终端接入方法的实现流程示意图， 如图 1所示， 所述方 法包括下述步骤：
步骤 101， 当终端接入网络后， 网络侧功能实体根据终端当前接入的无 线网络制式， 启动为终端预先设置的测量；
具体地， 当终端当前接入的无线网络为 LTE网络时， 网络侧功能实体 启动邻区更差事件测量和异制式更好事件测量； 当终端当前接入的无线网 络为 TD-SCDMA或 GSM网络时， 网络侧功能实体启动异制式更好事件测 量； 其中， 所述邻区更差事件测量用来测量所述终端的 LTE邻区是否均小 于预设的门限值且是否持续有预设的时间， 若所述终端的 LTE邻区均小于 预设的门限值且持续预设的时间， 则终端上报该测量的测量报告； 所述异 制式更好事件测量用来测量所述终端测量自身接入的无线网络之外的无线 网络制式是否存在更合适的小区， 若有， 则终端上报该测量的测量 4艮告。
其中， 当网络侧功能实体启动邻区更差事件测量时， 终端监控 LTE邻 区， 当监控到所有 LTE邻区测量信号小于网络侧预设的门限且持续时间达 到预设时间时， 终端上报邻区更差事件测量的测量报告。
当网络侧功能实体启动异制式更好事件测量时， 终端监控 LTE邻区， 当监控到合适的 LTE邻区时， 终端上报异制式更好事件测量的测量报告。
步骤 102， 根据终端上报的测量报告， 进行重定向判决；
在终端进行邻区更差事件测量和异制式更好事件测量时， 当网络侧功 能实体接收到终端上报的邻区更差事件测量的测量报告后， 且接收到所述 终端在监控到 TD-SCDMA或 GSM网络满足异制式更好条件时上报的异制 式更好事件测量的测量报告时， 确定启动终端的跨制式重定向。
在终端进行异制式更好事件测量时， 当网络侧功能实体接收到终端上 报的异制式更好事件测量的测量报告后， 确定启动终端的跨制式重定向。
步骤 103， 根据所述重定向判决的结果， 对终端进行重定向。
具体地， 当终端当前接入的无线网络为 LTE网络时， 网络侧功能实体 获取测量 _¾告中 TD-SCDMA或 GSM小区的系统消息， 并通过连接释放消 息发送给终端， 释放所述终端在 LTE网络下的连接； 所述终端接收到网络 侧功能实体的连接释放消息后，释放连接，并选择一个 TD-SCDMA或 GSM 小区驻留， 并根据业务情况或用户请求在 TD-SCDMA或 GSM网络上继续 PS业务。 当终端当前接入的无线网络为 TD-SCDMA或 GSM时， 网络侧功能实 体获取终端上报的测量报告中 LTE小区的系统消息， 并通过连接释放消息 发送给终端， 释放所述终端在 TD-SCDMA或 GSM网络下的连接； 所述终 端接收到网络侧功能实体的连接释放消息后， 释放连接， 并选择一个 LTE 小区驻留， 并根据业务情况或用户请求在 LTE网络上继续 PS业务。
图 2为本发明终端接入方法的实施例一的实现流程示意图， 如图 2所 示， 所述实施例一包括下述步骤：
步驟 201， 当终端接入 LTE后， 网络侧功能实体为终端设置邻区更差 事件测量和异制式更好事件测量；
其中， 网络侧功能实体为终端设置完邻区更差事件测量后， 才 据终端 能力信息， 判断所述终端是否支持 TD-SCDMA或 GSM无线网络制式， 当 支持时， 为所述终端设置异制式更好事件测量。
步骤 202 , 网络侧功能实体启动为所述终端设置的不同测量； 步骤 203 ,网络侧功能实体根据终端上报的测量报告，进行重定向判决； 其中， 当网络侧功能实体启动邻区更差事件测量时， 终端监控 LTE邻 区， 当监控到所有 LTE邻区测量信号小于网路侧预设的门限且持续时间达 到预设时间时， 终端上报邻区更差事件测量的测量报告；
当网络侧功能实体接收到终端上报的邻区更差事件测量的测量报告 后， 且接收到所述终端在监控到 TD-SCDMA或 GSM网络满足异制式更好 条件时上报的异制式更好事件测量的测量报告时， 确定启动终端的跨制式 重定向。
步骤 204, 网路侧功能实体根据所述重定向判决的结果， 对终端进行重 定向。
具体地， 网络侧功能实体获取测量报告中 TD-SCDMA或 GSM小区的 系统消息， 并通过连接释放消息发送给终端， 释放所述终端在 LTE网络下 的连接； 所述终端接收到网络侧功能实体的连接释放消息后， 释放连接， 并选择一个 TD-SCDMA或 GSM小区驻留， 并根据业务情况或用户请求在 TD-SCDMA或 GSM网络上继续 PS业务。
图 3为本发明终端接入方法的实施例二的实现流程示意图， 如图 3所 示， 所述实施例二包括下述步骤：
步骤 301， 当终端接入 TD-SCDMA或 GSM后， 网络侧功能实体为终 端设置异制式更好事件测量；
其中，网络侧功能实体根据终端能力信息，判断所述终端是否支持 LTE 无线网络制式， 当支持时， 为所述终端设置异制式更好事件测量。
步骤 302 , 网络侧功能实体启动为所述终端设置的异制式更好事件测 量；
步骤 303 ,网络侧功能实体根据终端上报的测量报告，进行重定向判决； 在终端进行异制式更好事件测量时， 当网络侧功能实体接收到终端上 报的异制式更好事件测量的测量报告后， 确定启动终端的跨制式重定向。
步驟 304, 网路側功能实体根据所述重定向判决的结果， 对终端进行重 定向。
网络侧功能实体获取终端上报的测量报告中 LTE小区的系统消息， 并 通过连接释放消息发送给终端 , 释放所述终端在 TD-SCDMA或 GSM网络 下的连接； 所述终端接收到网络侧功能实体的连接释放消息后， 释放连接， 并选择一个 LTE小区驻留， 并根据业务情况或用户请求在 LTE网络上继续 PS业务。
图 4为本发明终端接入系统的结构示意图， 如图 4所示， 所述系统包 括： 网络侧功能实体 41和终端 42； 其中，
所述网络侧功能实体 41， 用于在终端 42接入网络后， 根据所述终端 42当前接入的无线网络制式， 启动为终端 42预先设置的测量； 根据所述终 端 42上报的测量报告， 进行重定向判决； 根据所述重定向判决的结果， 对 终端 42进行重定向。
其中， 所述网络侧功能实体 41 , 用于当所述终端 42当前接入的无线网 络为 LTE网络时， 启动邻区更差事件测量和异制式更好事件测量。
其中， 所述终端 42, 用于监控 LTE邻区， 当监控到所有 LTE邻区测量 信号小于网络侧预设的门限且持续时间达到预设时间时， 上报邻区更差事 件测量的测量报告。
其中， 所述网络侧功能实体 41 , 用于接收到终端 42上 ·ί艮的邻区更差事 件测量的测量报告后，且接收到所述终端 42在监控到 TD-SCDMA或 GSM 网络满足异制式更好条件时上报的异制式更好事件测量的测量报告时， 确 定启动所述终端 42的跨制式重定向。
其中， 所述网络侧功能实体 41 , 用于当终端 42当前接入的无线网絡为 TD-SCDMA或 GSM网络时， 启动异制式更好事件测量。
其中， 所述终端 42 , 还用于监控 LTE邻区， 当监控到合适的 LTE邻区 时， 上报异制式更好事件测量的测量报告。
其中， 所述网络侧功能实体 41 , 用于接收到所述终端 42上报的异制式 更好事件测量的测量报告后， 确定启动所述终端 42的跨制式重定向。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。
工业实用性
本发明通过在终端接入网络后， 根据接入网络的不同制式， 启动为所 述终端预先设置的测量， 能够在保证业务连续性的前提下， 实现终端不同 无线网络制式间的接入， 尤其可以为多模单待或双模单待终端优选 LTE网 络作为接入网络， 充分利用 LTE网络的优势， 实现了数据业务的连续性。

Claims

权利要求书
1、 一种终端接入方法， 所述方法包括：
当终端接入网络后， 网络侧功能实体根据终端当前接入的无线网络制 式， 启动为终端预先设置的测量；
根据终端上报的测量报告， 进行重定向判决；
根据所述重定向判决的结杲， 对终端进行重定向。
2、 根据权利要求 1所述的方法， 其中， 所述网络侧功能实体根据终端 当前接入的无线网络制式， 启动预设的测量为：
当终端当前接入的无线网络为长期演进 LTE网络时， 网络侧功能实体 启动邻区更差事件测量和异制式更好事件测量。
3、 根据权利要求 2所述的方法， 其中， 在所述根据终端上报的测量报 告之前， 所述方法还包括：
终端监控 LTE邻区， 当监控到所有 LTE邻区测量信号小于预设的门限 且持续时间达到预设时间时， 终端上 4艮邻区更差事件测量的测量 4艮告。
4、 根据权利要求 2或 3所述的方法， 其中， 所述根据终端上报的测量 报告， 进行重定向判决为：
当网络侧功能实体接收到终端上报的邻区更差事件测量的测量报告 后，且接收到所述终端在监控到时分同步码分多址接入 TD-SCDMA或 GSM 网络满足异制式更好条件时上报的异制式更好事件测量的测量报告时， 确 定启动终端的跨制式重定向。
5、 根据权利要求 1所述的方法， 其中， 所述网络侧功能实体根据终端 当前接入的无线网络制式， 启动预设的测量为：
当终端当前接入的无线网络为时分同步码分多址接入网络 TD-SCDMA 或全球移动通信系统 GSM网络时， 网络侧功能实体启动异制式更好事件测 量。
6、 根据权利要求 5所述的方法， 其中， 在所述根据终端上报的测量报 告之前， 所述方法还包括：
终端监控 LTE邻区， 当监控到合适的 LTE邻区时， 终端上报异制式更 好事件测量的测量报告。
7、 根据权利要求 5或 6所述的方法， 其中， 所述根据终端上报的测量 报告， 进行重定向判决为：
当网络侧功能实体接收到终端上报的异制式更好事件测量的测量报告 后， 确定启动终端的跨制式重定向。
8、一种终端接入系统， 所述系统包括： 网络侧功能实体和终端； 其中， 所述网络侧功能实体， 用于在终端接入网络后， 根据所述终端当前接 入的无线网络制式， 启动为终端预先设置的测量； 根据所述终端上 4艮的测 量报告， 进行重定向判决； 根据所述重定向判决的结果， 对终端进行重定 向。
9、 根据权利要求 8所述的系统， 其中， 所述网络侧功能实体， 用于当 所述终端当前接入的无线网络为 LTE网络时， 启动邻区更差事件测量和异 制式更好事件测量。
10、 根据权利要求 9所述的系统， 其中， 所述终端， 用于监控 LTE邻 区， 当监控到所有 LTE邻区测量信号小于预设的门限且持续时间达到预设 时间时， 上报邻区更差事件测量的测量报告。
11、 根据权利要求 9或 10所述的系统， 其中， 所述网络侧功能实体， 用于接收到终端上报的邻区更差事件测量的测量报告后， 且接收到所述终 端在监控到 TD-SCDMA或 GSM网络满足异制式更好条件时上报的异制式 更好事件测量的测量报告时， 确定启动所述终端的跨制式重定向。
12、 根据权利要求 8所述的系统， 其中， 所述网络侧功能实体， 用于 当终端当前接入的无线网络为 TD-SCDMA或 GSM网络时， 启动异制式更 好事件测量。
13、 根据权利要求 12所述的系统， 其中， 所述终端， 还用于监控 LTE 邻区， 当监控到合适的 LTE邻区时， 上报异制式更好事件测量的测量报告。
14、 根据权利要求 12或 13所述的系统， 其中， 所述网络侧功能实体， 用于接收到所述终端上报的异制式更好事件测量的测量报告后， 确定启动 所述终端的跨制式重定向。
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