WO2014067119A1 - 网络重选处理方法和无线网络控制器 - Google Patents

网络重选处理方法和无线网络控制器 Download PDF

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Publication number
WO2014067119A1
WO2014067119A1 PCT/CN2012/083922 CN2012083922W WO2014067119A1 WO 2014067119 A1 WO2014067119 A1 WO 2014067119A1 CN 2012083922 W CN2012083922 W CN 2012083922W WO 2014067119 A1 WO2014067119 A1 WO 2014067119A1
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Prior art keywords
state
mode terminal
lte
cell
detection timer
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PCT/CN2012/083922
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English (en)
French (fr)
Inventor
徐宏伟
高良柱
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/083922 priority Critical patent/WO2014067119A1/zh
Priority to CN201280004551.4A priority patent/CN103535078B/zh
Publication of WO2014067119A1 publication Critical patent/WO2014067119A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service

Definitions

  • the present invention relates to a wireless communication technology, and in particular, to a network reselection processing method and a wireless network controller. Background technique
  • LTE Long Term Evolution
  • LTE packet-based radio access network
  • the multimode terminal can support multiple networks, for example, can support a universal mobile telecommunication system (hereinafter referred to as UMTS) network and an LTE network, and the multimode terminal can reselect from the UMTS network to the LTE network to obtain higher. Data transfer speed.
  • UMTS universal mobile telecommunication system
  • LTE long term evolution
  • PS packet switching
  • a PS inactivity detection timer may be started, and when the timing expires, the multimode terminal may migrate the state to the paging channel. (hereinafter referred to as: PCH) state, so that it can be returned from the UMTS network to the LTE network through the inter-system cell reselection.
  • PCH paging channel
  • Embodiments of the present invention provide a network reselection processing method and a radio network controller to shorten the time required for a multimode terminal to return from the UMTS network to the LTE network.
  • the embodiment of the invention provides a network reselection processing method, including:
  • the first PS inactivity detection timer is started, otherwise the second PS inactivity detection timer is started, and the timing duration of the first PS inactivity detection timer is smaller than the timing duration of the second PS inactivity detection timer. ;
  • An embodiment of the present invention provides a radio network controller, including:
  • a determining module configured to determine whether a UM neighbor cell currently camped by the multimode terminal has an LTE neighboring cell
  • a timer start module if yes, starting a first PS inactivity detection timer, otherwise starting a second PS inactivity detection timer, where the timing of the first PS inactivity detection timer is less than the second PS The timing of the activity detection timer;
  • a state transition triggering module configured to trigger a state transition process of the multimode terminal when the first PS inactivity detection timer expires, and migrate the state of the multimode terminal to a PCH state, so that the multimode terminal Reselected from the UMTS network back to the LTE network.
  • the technical solution provided by the embodiment of the present invention by performing LTE neighbor detection on a multimode terminal residing in the UMTS network, when determining that the UMTS cell currently camped by the multimode terminal has an LTE neighboring cell, a shorter PS is started.
  • the inactivity detection timer triggers the state transition process of the multimode terminal when the timer expires, and migrates the state of the multimode terminal to the PCH state, so that the multimode terminal is reselected from the UMTS network back to the LTE network, shortening the multimode The time required for the terminal to return from the UMTS network to the LTE network.
  • Embodiment 1 is a flowchart of Embodiment 1 of a network reselection processing method according to the present invention
  • Embodiment 2 is a flowchart of Embodiment 2 of a network reselection processing method according to the present invention
  • Embodiment 3 is a flowchart of Embodiment 3 of a network reselection processing method according to the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of a radio network controller according to the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION In order to make the objects, technical solutions and advantages of the present invention more clear, the following will be combined with the present invention.
  • the embodiments of the present invention are clearly and completely described in the drawings, and it is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • Embodiment 1 is a flowchart of Embodiment 1 of a network reselection processing method of the present invention. As shown in FIG. 1, the method in this embodiment may include:
  • Step 101 Determine whether an LTE neighboring cell exists in the UMTS cell currently camped by the multimode terminal.
  • the radio network controller first determines whether the user terminal device (hereinafter referred to as UE) is a multi-mode terminal device, that is, whether the UE supports the LTE network connection.
  • the UE establishes the PS service in the UMTS network
  • the establishment of the radio resource control (hereinafter referred to as RRC) connection request message sent by the UE to the radio network controller includes the capability information related to the radio access network it supports, and the radio network control
  • the device may also request the UE to send capability information related to the radio access network it supports by sending a capability query message to the UE.
  • the radio network controller determines that the UE is a multimode terminal supporting the LTE network connection, it will further determine whether the LTE neighbor cell is configured for the UMTS cell in which the multimode terminal is currently camped.
  • step 102 is performed; otherwise, step 103 is performed.
  • the radio network controller monitors data transmission between the multimode terminal and the UMTS network, and sets a certain duration, when the radio network controller detects that there is no data transmission between the multimode terminal and the UMTS network for a set period of time. Then, it is determined that the PS service of the multimode terminal is in an inactive state, and a PS inactivity detection timer having a different timer duration is configured.
  • Step 102 Start a first PS inactivity detection timer.
  • the first PS inactivity detection timer is started.
  • Step 103 Start a second PS inactivity detection timer.
  • the second PS inactivity detection timer is started.
  • the timing duration of the first PS inactivity detection timer is less than the timing duration of the second PS inactivity detection timer.
  • Step 104 trigger a state transition process of the multimode terminal, and shape the multimode terminal. State transitions to the PCH state.
  • the radio network controller triggers a state transition process of the multimode terminal, and migrates the state of the multimode terminal to a PCH state, so that the multimode terminal is from the UMTS network. Reselect the LTE network.
  • the radio network controller does not determine whether the UM neighbor cell currently camped by the multimode terminal has an LTE neighboring cell before starting the PS inactivity detection timer. Therefore, the radio network controller configures the PS service in an inactive state.
  • the normal inactivity detection timer is equivalent to the second PS inactivity detection timer, and is longer than the first PS inactivity detection timer.
  • the setting of the normal inactivity detection timer includes the case where the UMTS cell currently camped by the multimode terminal does not have the LTE neighboring cell.
  • the state of the multimode terminal is migrated to the PCH state, the multimode terminal in the PCH state performs cell reselection, and the UMTS cell in which the multimode terminal currently resides does not have the LTE neighboring cell, so the multimode terminal may return to the UMTS network again.
  • RRC connection Signaling interactions caused by frequent network interoperation will increase the burden on the UMTS network and even lead to signaling storms.
  • the first PS inactivity detection timer is started. And shifting the state of the multimode terminal to the PCH state when the first PS inactivity detection timer expires, and the multimode terminal in the PCH state performs cell reselection and reselects from the UMTS network to the LTE network. Since the duration of the first PS inactivity detection timer is smaller than the duration of the normal inactivity detection timer, the multimode terminal can return from the UMTS network to the LTE network in a shorter time than in the prior art. When it is determined that the UM neighboring cell currently camped by the multimode terminal does not have the LTE neighboring cell, the second PS inactivity detection timer is started, and the same technical solution as the prior art is executed.
  • the technical solution provided by this embodiment when determining that the UMTS cell currently camped by the multimode terminal has an LTE neighboring cell, starts a short PS inactivity detection timer, and when the PS inactivity detection timer expires, The state of the multimode terminal is migrated to the PCH state, and the multimode terminal in the PCH state performs cell reselection and reselects from the UMTS network back to the LTE network, thereby shortening the time required for the multimode terminal to return from the UMTS network to the LTE network.
  • Embodiment 2 is a flowchart of Embodiment 2 of a network reselection processing method according to the present invention, as shown in FIG.
  • the state transition process of the multimode terminal is triggered in step 104, and before the state of the multimode terminal is migrated to the PCH state, the method may further include:
  • Step 201 Determine again whether the UM neighbor cell currently camped by the multimode terminal has an LTE neighboring cell.
  • the status information of the currently camped cell of the multimode terminal may change during the time period in which the first PS inactivity detection timer is timed. Therefore, when the first PS inactivity detection timer expires, the multimode terminal is determined again. Whether the currently camped UMTS cell has an LTE neighbor. If it is determined again that the UM neighbor cell currently camped by the multimode terminal has an LTE neighboring cell, step 202 is performed; otherwise, step 203 is performed.
  • Step 202 Trigger a state transition process of the multimode terminal, and migrate the state of the multimode terminal to a PCH state.
  • the radio network controller detects that the UMTS cell currently camped by the multimode terminal still has an LTE neighboring cell, triggering a state transition process of the multimode terminal, and the multimode The state of the terminal is migrated to the PCH state to cause the multimode terminal to reselect from the UMTS network back to the LTE network.
  • Step 203 Trigger a state transition process of the multimode terminal, and migrate the state of the multimode terminal to another state except the PCH state.
  • the radio network controller detects that the UM neighboring cell currently camped by the multimode terminal no longer has an LTE neighboring cell, triggering a state transition process of the multimode terminal, The state of the multimode terminal is migrated to other states except the PCH state to prevent the multimode terminal in the PCH state from performing cell reselection, reducing signaling interaction caused by network interoperation, and reducing network load.
  • the first PS inactivity detection timer is started, and when the first PS inactivity detection timer expires, the multimode is determined again. Whether the UM neighboring cell currently camped by the terminal has an LTE neighboring cell. If yes, the state of the multimode terminal is migrated to the PCH state, so that the multimode terminal in the PCH state performs cell reselection, and is reselected from the UMTS network to the LTE network. .
  • the state of the multimode terminal is migrated to other states than the PCH state to avoid multimode in the PCH state.
  • the terminal performs cell reselection.
  • the LTE neighbor cell of the UMTS cell currently camped by the multimode terminal is determined twice before the first PS inactivity detection timer is started and the first PS inactivity detection timer expires
  • the state of the modulo terminal is migrated to the PCH state, and the multimode terminal in the PCH state is reselected from the UMTS network to the LTE network when the cell reselection is performed, and the duration of the first PS inactivity detection timer is less than the normal inactivity detection timing.
  • the duration of the device shortens the time required for the multimode terminal to return from the UMTS network to the LTE network.
  • the state of the multimode terminal is migrated to a state other than the PCH state, The multimode terminal in the PCH state is prevented from performing cell reselection, thereby avoiding signaling interaction caused by network interoperation and reducing network load.
  • FIG. 3 is a flowchart of Embodiment 3 of the network reselection processing method of the present invention. As shown in FIG. 3, based on Embodiment 1 of the method of the present invention shown in FIG. 1, where the second PS inactivity detection timing is started in step 103. After the device, it can also include:
  • Step 301 Determine again whether the UM neighbor cell currently camped by the multimode terminal has an LTE neighboring cell.
  • the status information of the currently camped cell of the multimode terminal may change during the time period in which the second PS inactivity detection timer is timed. Therefore, when the second PS inactivity detection timer expires, the multimode terminal is determined again. Whether the currently camped UMTS cell has an LTE neighbor. If it is determined that the UM neighboring cell currently camped by the multimode terminal has an LTE neighboring cell, step 302 is performed; otherwise, step 303 is performed.
  • Step 302 Trigger a state transition process of the multimode terminal, and migrate the state of the multimode terminal to a PCH state.
  • the radio network controller detects that the UM neighboring cell currently camped by the multimode terminal already has an LTE neighboring cell, triggering a state transition process of the multimode terminal, and the multimode The state of the terminal is migrated to the PCH state to cause the multimode terminal to reselect from the UMTS network back to the LTE network.
  • Step 303 Trigger a state transition process of the multimode terminal, and migrate the state of the multimode terminal to another state except the PCH state.
  • the radio network controller detects the multimode end If the UM neighboring cell currently occupies the LTE neighboring cell, the state transition process of the multimode terminal is triggered, and the state of the multimode terminal is migrated to other states except the PCH state to avoid being in the PCH.
  • the multimode terminal of the state performs cell reselection, reduces signaling interaction brought by network interoperation, and reduces network load.
  • the second PS inactivity detection timer is started, and when the second PS inactivity detection timer expires, the multimode is determined again. Whether the UM neighboring cell currently camped by the terminal has an LTE neighboring cell. If yes, the state of the multimode terminal is migrated to the PCH state, so that the multimode terminal in the PCH state performs cell reselection, and is reselected from the UMTS network to the LTE network. .
  • the state of the multimode terminal is migrated to other states than the PCH state to avoid execution by the multimode terminal in the PCH state.
  • Cell reselection reduces the signaling interaction brought by network interoperation and reduces the network burden.
  • the determining whether the UM neighboring cell currently camped by the multimode terminal has the LTE neighboring cell may further include: determining whether the UMTS cell currently camped by the multimode terminal has a priority Higher than the LTE neighbor of the UMTS cell.
  • the neighboring cell and the priority of the UMTS cell where the multimode terminal currently resides are pre-configured by the radio network controller, and the radio network controller determines whether the UM neighbor cell currently camped by the multimode terminal has an LTE neighboring cell, when the radio network
  • the controller determines that the UM neighboring cell currently camped by the multimode terminal has an LTE neighboring cell
  • the device in this embodiment may include: a determining module 401, a timer starting module 402, and a state transition triggering module 403.
  • the determining module 401 is configured to determine whether the UM neighbor cell currently camped by the multimode terminal has an LTE neighboring cell; if yes, the timer starting module 402 starts the first PS inactivity detection timer, otherwise, the timer starting module 402 starts.
  • the second PS inactivity detection timer, the timing duration of the first PS inactivity detection timer is less than the timing duration of the second PS inactivity detection timer; the state transition triggering module 403 is configured to use the first PS inactivity detection timer.
  • the state transition process of the multimode terminal is triggered, and the state of the multimode terminal is migrated to the PCH state, so that the multimode terminal is reselected from the UMTS network to the LTE network.
  • the radio network controller of this embodiment may be used to perform the method of the method embodiment shown in FIG. 1. The implementation principle is similar to the technical effect to be achieved, and details are not described herein again.
  • the determining module 401 is further configured to trigger the state transition process of the multimode terminal in the state transition triggering module 403, before relocating the state of the multimode terminal to the PCH state, Determining whether the UM neighboring cell currently camped by the multimode terminal has an LTE neighboring cell; the state transition triggering module 403 may be further configured to: if the result of the re-determination is that the LTE neighboring cell exists, triggering the state transition process of the multimode terminal, The state of the multimode terminal transitions to the PCH state.
  • the state transition triggering module 403 is further configured to: if the result determined by the determining module 401 is that there is no LTE neighboring cell, trigger a state transition process of the multimode terminal, and migrate the state of the multimode terminal to the PCH state. Other states than others.
  • the radio network controller of this embodiment may be used to perform the method of the method embodiment shown in FIG. 2, and the implementation principle is similar to the technical effect achieved, and details are not described herein again.
  • the radio network controller as described above, wherein the determining module 401 is further configured to: when the second PS inactivity detection timer expires, determine whether the UMTS cell currently camped by the multimode terminal has an LTE neighboring cell;
  • the migration triggering module 403 is further configured to trigger a state transition process of the multimode terminal to migrate the state of the multimode terminal to a PCH state if the result of the re-determination is that the LTE neighboring cell exists.
  • the state transition triggering module 403 is further configured to: if the result determined by the determining module 401 is that there is no LTE neighboring cell, trigger a state transition process of the multimode terminal, and migrate the state of the multimode terminal to the PCH state. Other states than others.
  • the radio network controller of this embodiment may be used to perform the method of the method embodiment shown in FIG. 3, and the implementation principle is similar to the technical effect achieved, and details are not described herein again.
  • the determining module 401 is further configured to determine whether the UMTS cell currently camped by the multimode terminal has a higher priority than the LTE neighboring cell of the UMTS cell.
  • the neighboring cell and the priority of the UMTS cell where the multimode terminal currently resides are pre-configured by the radio network controller, and the determining module 401 of the radio network controller first determines whether the UMTS cell currently camped by the multimode terminal has an LTE neighboring cell. When it is determined that the UM neighboring cell currently camped by the multimode terminal has an LTE neighboring cell, the determining module 401 further determines whether the priority of the LTE neighboring cell is higher than a priority of the UMTS cell currently camped by the multimode terminal, To ensure that the multimode terminal in the PCH state can be reselected from the UMTS network back to LTE when performing cell reselection.
  • the internet The internet.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the above method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供一种网络重选处理方法和无线网络控制器。方法包括确定多模终端当前驻留的UMTS小区是否存在LTE邻区;若存在,则启动第一PS不活动检测定时器,否则启动第二PS不活动检测定时器,第一PS不活动检测定时器的定时时长小于第二PS不活动检测定时器的定时时长;在定时器超时时,触发多模终端的状态迁移流程,将多模终端的状态迁移到PCH状态,以使多模终端从UMTS网络重选回LTE网络。本发明实施例提供的网络重选处理方法和无线网络控制器,可以缩短多模终端从UMTS网络回到LTE网络所需要的时间。

Description

网络重选处理方法和无线网络控制器
技术领域 本发明实施例涉及无线通信技术, 尤其涉及一种网络重选处理方法和 无线网络控制器。 背景技术
移动宽带技术的发展, 丰富了移动网承载的数据业务类型。 长期演进
(以下简称: LTE )是基于分组的无线接入网, 其具有数据传输速度快、 覆盖区域广等优势。
现有技术中, 多模终端可以支持多种网络, 例如可以支持通用移动电 信系统 (以下简称: UMTS ) 网络和 LTE 网络, 多模终端可以从 UMTS 网络重选到 LTE网络, 以获得更高的数据传输速度。 具体来说, 当多模终 端在 UMTS 网络中进行分组交换(以下简称: PS ) 业务时, 可以启动一 个 PS不活动检测定时器, 当定时超时时, 多模终端可以将状态迁移到寻 呼信道 (以下简称: PCH ) 状态, 从而可以通过异系统小区重选方式从 UMTS网络回到 LTE网络。
但是, 上述现有技术中, 终端从 UMTS网络回到 LTE网络需要较长 的时间。 发明内容
本发明实施例提供一种网络重选处理方法和无线网络控制器, 以缩短 多模终端从 UMTS网络回到 LTE网络所需要的时间。
本发明实施例提供一种网络重选处理方法, 包括:
确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区;
若存在, 则启动第一 PS不活动检测定时器, 否则启动第二 PS不活动 检测定时器,所述第一 PS不活动检测定时器的定时时长小于第二 PS不活 动检测定时器的定时时长;
在第一 PS不活动检测定时器超时时, 触发所述多模终端的状态迁移 流程, 将所述多模终端的状态迁移到 PCH 状态, 以使所述多模终端从 UMTS网络重选回 LTE网络。
本发明实施例提供一种无线网络控制器, 包括:
确定模块, 用于确定多模终端当前驻留的 UMTS 小区是否存在 LTE 邻区;
定时器启动模块, 用于若存在, 则启动第一 PS不活动检测定时器, 否则启动第二 PS不活动检测定时器,所述第一 PS不活动检测定时器的定 时时长小于第二 PS不活动检测定时器的定时时长;
状态迁移触发模块, 用于在第一 PS不活动检测定时器超时时, 触发 所述多模终端的状态迁移流程, 将所述多模终端的状态迁移到 PCH状态, 以使所述多模终端从 UMTS网络重选回 LTE网络。
本发明实施例提供的技术方案,通过对驻留在 UMTS网络的多模终端 进行 LTE邻区检测, 当确定多模终端当前驻留的 UMTS小区存在 LTE邻 区时, 则启动一个较短的 PS不活动检测定时器, 并在定时器超时时触发 多模终端的状态迁移流程, 将多模终端的状态迁移到 PCH状态, 以使多 模终端从 UMTS网络重选回 LTE网络, 缩短了多模终端从 UMTS网络回 到 LTE网络所需要的时间。 附图说明 为了更清楚地说明本发明实施例的技术方案, 下面将对实施例中所需 要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅是本发明 的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前 提下, 还可以根据这些附图获得其他的附图。
图 1为本发明网络重选处理方法实施例一的流程图;
图 2为本发明网络重选处理方法实施例二的流程图;
图 3为本发明网络重选处理方法实施例三的流程图;
图 4为本发明无线网络控制器实施例的结构示意图。 具体实施方式 为使本发明的目的、 技术方案和优点更加清楚, 下面将结合本发明的 附图, 对本发明中的技术方案进行清楚、 完整地描述, 显然, 所描述的实 施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施 例, 本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他 实施例, 都属于本发明保护的范围。
图 1为本发明网络重选处理方法实施例一的流程图, 如图 1所示, 本 实施例的方法可以包括:
步骤 101、 确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区。 具体的, 无线网络控制器首先判断用户终端设备(以下简称: UE )是 否为多模终端设备, 即 UE是否支持 LTE网络连接。 UE在 UMTS网络建 立 PS业务时,UE向无线网络控制器发送的建立无线资源控制(以下简称: RRC ) 连接请求消息中包含了与它所支持的无线接入网相关的能力信息, 无线网络控制器还可以通过向 UE发送能力查询消息请求 UE发送与它所 支持的无线接入网相关的能力信息。 当无线网络控制器确定 UE 为支持 LTE网络连接的多模终端时,将进一步的确定是否为该多模终端当前驻留 的 UMTS小区配置了 LTE邻区。
如果确定多模终端当前驻留的 UMTS小区存在 LTE邻区, 则执行步 骤 102, 否则, 执行步骤 103。
具体的, 无线网络控制器监测多模终端和 UMTS 网络之间的数据传 输, 并设置一定的时长, 当无线网络控制器监测到多模终端和 UMTS网络 之间在设定的时长内无数据传输时, 则判定多模终端的 PS业务处于不活 动状态, 并配置具有不同定时器时长的 PS不活动检测定时器。
步骤 102、 启动第一 PS不活动检测定时器。
对处于不活动状态的 PS业务, 当确定多模终端当前驻留的 UMTS小 区存在 LTE邻区时, 启动第一 PS不活动检测定时器。
步骤 103、 启动第二 PS不活动检测定时器。
当确定多模终端当前驻留的 UMTS小区不存在 LTE邻区时, 启动第 二 PS不活动检测定时器。
上述第一 PS不活动检测定时器的定时时长小于第二 PS不活动检测定 时器的定时时长。
步骤 104、 触发所述多模终端的状态迁移流程, 将所述多模终端的状 态迁移到 PCH状态。
在第一 PS不活动检测定时器超时时, 无线网络控制器触发所述多模 终端的状态迁移流程, 将所述多模终端的状态迁移到 PCH状态, 以使所 述多模终端从 UMTS网络重选回 LTE网络。
现有技术中, 无线网络控制器在启动 PS不活动检测定时器之前不判 断多模终端当前驻留的 UMTS小区是否存在 LTE邻区, 因此, 无线网络 控制器为处于不活动状态的 PS业务配置普通不活动检测定时器, 该普通 不活动检测定时器相当于上述第二 PS不活动检测定时器, 较上述第一 PS 不活动检测定时器的时长较长。 普通不活动检测定时器的设置包含多模终 端当前驻留的 UMTS小区不存在 LTE邻区的情况, 如果普通不活动检测 定时器的时长设置的太短, 在普通不活动检测定时器超时时, 多模终端的 状态迁移到 PCH状态, 处于 PCH状态的多模终端执行小区重选, 而多模 终端当前驻留的 UMTS小区又不存在 LTE邻区, 因此多模终端可能会重 新返回 UMTS网络进行 RRC连接。 频繁的网络互操作带来的信令交互将 增加 UMTS网络的负担, 甚至导致信令风暴。
本实施例中,首先确定多模终端当前驻留的 UMTS小区是否存在 LTE 邻区, 当确定多模终端当前驻留的 UMTS小区存在 LTE邻区时, 则启动 第一 PS不活动检测定时器,并在第一 PS不活动检测定时器超时时将该多 模终端的状态迁移到 PCH状态,处于 PCH状态的多模终端执行小区重选, 从 UMTS网络重选回 LTE网络。由于第一 PS不活动检测定时器的时长小 于普通不活动检测定时器的时长, 因此, 与现有技术相比, 多模终端只需 较短的时间即可从 UMTS网络回到 LTE网络。 当确定多模终端当前驻留 的 UMTS小区不存在 LTE邻区时, 则启动第二 PS不活动检测定时器, 执 行与现有技术相同的技术方案。
本实施例提供的技术方案,当确定多模终端当前驻留的 UMTS小区存 在 LTE邻区时, 通过启动一个较短的 PS不活动检测定时器, 并在该 PS 不活动检测定时器超时时将该多模终端的状态迁移到 PCH状态,处于 PCH 状态的多模终端执行小区重选, 从 UMTS网络重选回 LTE网络, 从而缩 短了多模终端从 UMTS网络回到 LTE网络所需要的时间。
图 2为本发明网络重选处理方法实施例二的流程图, 如图 2所示, 在 图 1所示本发明方法实施例一的基础上, 在步骤 104所述触发所述多模终 端的状态迁移流程, 将所述多模终端的状态迁移到 PCH状态之前, 还可 以包括:
步骤 201、 再次确定多模终端当前驻留的 UMTS 小区是否存在 LTE 邻区。
具体的, 多模终端当前驻留小区的状态信息在第一 PS不活动检测定 时器计时的时间段内可能发生变化, 因此, 在第一 PS不活动检测定时器 超时时, 再次确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区。 如果再次确定多模终端当前驻留的 UMTS小区存在 LTE邻区, 则执行步 骤 202, 否则, 执行步骤 203。
步骤 202、 触发所述多模终端的状态迁移流程, 将所述多模终端的状 态迁移到 PCH状态。
在第一 PS不活动检测定时器超时时, 无线网络控制器检测到多模终 端当前驻留的 UMTS小区仍然存在 LTE邻区, 则触发所述多模终端的状 态迁移流程, 将所述多模终端的状态迁移到 PCH状态, 以使所述多模终 端从 UMTS网络重选回 LTE网络。
步骤 203、 触发所述多模终端的状态迁移流程, 将所述多模终端的状 态迁移到 PCH状态之外的其它状态。
在第一 PS不活动检测定时器超时时, 无线网络控制器检测到多模终 端当前驻留的 UMTS小区已经不再存在 LTE邻区, 则触发所述多模终端 的状态迁移流程, 将所述多模终端的状态迁移到所述 PCH状态之外的其 它状态, 以避免处于 PCH状态的多模终端执行小区重选, 减少网络互操 作带来的信令交互, 减轻网络负担。
本实施例中, 在首次确定多模终端当前驻留的 UMTS 小区存在 LTE 邻区时, 启动第一 PS不活动检测定时器, 并在第一 PS不活动检测定时器 超时时, 再次确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区, 如果存在, 则将该多模终端的状态迁移到 PCH状态, 使处于 PCH状态的 多模终端执行小区重选, 从 UMTS网络重选回 LTE网络。 如果确定多模 终端当前驻留的 UMTS小区不再存在 LTE邻区时, 则将所述多模终端的 状态迁移到所述 PCH状态之外的其它状态, 以避免处于 PCH状态的多模 终端执行小区重选。
本实施例,通过分别在启动第一 PS不活动检测定时器前和第一 PS不 活动检测定时器超时后两次确定多模终端当前驻留的 UMTS 小区存在 LTE邻区时, 才将该多模终端的状态迁移到 PCH状态, 确保处于 PCH状 态的多模终端执行小区重选时, 从 UMTS网络重选回 LTE网络, 且由于 第一 PS不活动检测定时器的时长小于普通不活动检测定时器的时长, 缩 短了多模终端从 UMTS网络回到 LTE网络所需要的时间。 如果在第一 PS 不活动检测定时器超时后,确定多模终端当前驻留的 UMTS小区不再存在 LTE邻区, 则将该多模终端的状态迁移到所述 PCH状态之外的其它状态, 以避免处于 PCH状态的多模终端执行小区重选, 从而避免了网络互操作 带来的信令交互, 减轻了网络负担。
图 3为本发明网络重选处理方法实施例三的流程图, 如图 3所示, 在 图 1所示本发明方法实施例一的基础上, 其中在步骤 103启动第二 PS不 活动检测定时器之后, 还可以包括:
步骤 301、 再次确定多模终端当前驻留的 UMTS 小区是否存在 LTE 邻区。
具体的, 多模终端当前驻留小区的状态信息在第二 PS不活动检测定 时器计时的时间段内可能发生变化, 因此, 在第二 PS不活动检测定时器 超时时, 再次确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区。 如果再次确定多模终端当前驻留的 UMTS小区存在 LTE邻区, 则执行步 骤 302, 否则, 执行步骤 303。
步骤 302、 触发所述多模终端的状态迁移流程, 将所述多模终端的状 态迁移到 PCH状态。
在第二 PS不活动检测定时器超时时, 无线网络控制器检测到多模终 端当前驻留的 UMTS小区已经存在 LTE邻区, 则触发所述多模终端的状 态迁移流程, 将所述多模终端的状态迁移到 PCH状态, 以使所述多模终 端从 UMTS网络重选回 LTE网络。
步骤 303、 触发所述多模终端的状态迁移流程, 将所述多模终端的状 态迁移到 PCH状态之外的其它状态。
在第二 PS不活动检测定时器超时时, 无线网络控制器检测到多模终 端当前驻留的 UMTS小区仍然不存在 LTE邻区, 则触发所述多模终端的 状态迁移流程, 将所述多模终端的状态迁移到所述 PCH状态之外的其它 状态, 以避免处于 PCH状态的多模终端执行小区重选, 减少网络互操作 带来的信令交互, 减轻网络负担。
本实施例, 在首次确定多模终端当前驻留的 UMTS 小区不存在 LTE 邻区时, 启动第二 PS不活动检测定时器, 并在第二 PS不活动检测定时器 超时时, 再次确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区, 如果存在, 则将该多模终端的状态迁移到 PCH状态, 使处于 PCH状态的 多模终端执行小区重选, 从 UMTS网络重选回 LTE网络。 如果确定多模 终端当前驻留的 UMTS小区仍然不存在 LTE邻区时, 则将所述多模终端 的状态迁移到所述 PCH状态之外的其它状态, 以避免处于 PCH状态的多 模终端执行小区重选,减少网络互操作带来的信令交互,减轻了网络负担。
本发明上述实施例所述的方法, 优选地, 所述确定多模终端当前驻留 的 UMTS小区是否存在 LTE邻区还可以包括: 确定所述多模终端当前驻 留的 UMTS小区是否存在优先级高于所述 UMTS小区的 LTE邻区。
具体的,多模终端当前驻留的 UMTS小区的邻区及优先级由无线网络 控制器预先配置,无线网络控制器确定多模终端当前驻留的 UMTS小区是 否存在 LTE 邻区, 当该无线网络控制器确定上述多模终端当前驻留的 UMTS小区存在 LTE邻区时, 将进一步的确定该 LTE邻区的优先级是否 高于该多模终端当前驻留的 UMTS小区的优先级, 以确保处于 PCH状态 的多模终端在执行小区重选时能够从 UMTS网络重选回 LTE网络。
图 4为本发明无线网络控制器实施例的结构示意图, 如图 4所示, 本 实施例的设备可以包括: 确定模块 401、 定时器启动模块 402和状态迁移 触发模块 403。 其中, 确定模块 401用于确定多模终端当前驻留的 UMTS 小区是否存在 LTE邻区; 若存在, 定时器启动模块 402启动第一 PS不活 动检测定时器, 否则, 定时器启动模块 402启动第二 PS不活动检测定时 器,所述第一 PS不活动检测定时器的定时时长小于第二 PS不活动检测定 时器的定时时长; 状态迁移触发模块 403用于在第一 PS不活动检测定时 器超时时, 触发所述多模终端的状态迁移流程, 将所述多模终端的状态迁 移到 PCH状态, 以使所述多模终端从 UMTS网络重选回 LTE网络。 本实施例的无线网络控制器可以用于执行图 1 所示方法实施例的方 法, 其实现原理和所要达到的技术效果类似, 在此不再赘述。
如上所述的无线网络控制器, 其中, 确定模块 401还可以用于在状态 迁移触发模块 403触发所述多模终端的状态迁移流程, 将所述多模终端的 状态迁移到 PCH状态之前, 再次确定多模终端当前驻留的 UMTS小区是 否存在 LTE邻区;状态迁移触发模块 403具体还可以用于若再次确定的结 果为存在 LTE邻区, 则触发所述多模终端的状态迁移流程,将所述多模终 端的状态迁移到 PCH状态。 状态迁移触发模块 403还可以用于在确定模 块 401再次确定的结果为不存在 LTE邻区,则触发所述多模终端的状态迁 移流程, 将所述多模终端的状态迁移到所述 PCH状态之外的其它状态。
本实施例的无线网络控制器可以用于执行图 2 所示方法实施例的方 法, 其实现原理和所达到的技术效果类似, 此处不再赘述。
如上所述的无线网络控制器, 其中, 确定模块 401还可以用于在所述 第二 PS不活动检测定时器超时时, 再次确定多模终端当前驻留的 UMTS 小区是否存在 LTE邻区;状态迁移触发模块 403还可以用于若再次确定的 结果为存在 LTE邻区, 则触发所述多模终端的状态迁移流程,将所述多模 终端的状态迁移到 PCH状态。 状态迁移触发模块 403还可以用于若确定 模块 401再次确定的结果为不存在 LTE邻区,则触发所述多模终端的状态 迁移流程 , 将所述多模终端的状态迁移到所述 PCH状态之外的其它状态。
本实施例的无线网络控制器可以用于执行图 3 所示方法实施例的方 法, 其实现原理和所达到的技术效果类似, 此处不再赘述。
如上所述的无线网络控制器, 优选地, 确定模块 401具体还可以用于 确定所述多模终端当前驻留的 UMTS 小区是否存在优先级高于所述 UMTS小区的 LTE邻区。
具体的,多模终端当前驻留的 UMTS小区的邻区及优先级由无线网络 控制器预先配置, 无线网络控制器的确定模块 401首先确定多模终端当前 驻留的 UMTS小区是否存在 LTE邻区, 当确定上述多模终端当前驻留的 UMTS小区存在 LTE邻区时, 确定模块 401将进一步的确定该 LTE邻区 的优先级是否高于该多模终端当前驻留的 UMTS小区的优先级,以确保处 于 PCH状态的多模终端在执行小区重选时能够从 UMTS网络重选回 LTE 网络。
本领域普通技术人员可以理解: 实现上述各方法实施例的全部或部分 步骤可以通过程序指令相关的硬件来完成。 前述的程序可以存储于一计算 机可读取存储介质中。 该程序在执行时, 执行包括上述各方法实施例的步 骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存 储程序代码的介质。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非 对其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的 普通技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进 行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或 者替换, 并不使相应技术方案的本质脱离本发明各实施例技术方案的范 围。

Claims

权 利 要 求 书
1、 一种网络重选处理方法, 其特征在于, 包括:
确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区;
若存在, 则启动第一 PS不活动检测定时器, 否则启动第二 PS不活动检 测定时器, 所述第一 PS不活动检测定时器的定时时长小于第二 PS不活动检 测定时器的定时时长;
在第一 PS 不活动检测定时器超时时, 触发所述多模终端的状态迁移流 程, 将所述多模终端的状态迁移到 PCH状态, 以使所述多模终端从 UMTS 网络重选回 LTE网络。
2、 根据权利要求 1所述的方法, 其特征在于, 所述触发所述多模终端的 状态迁移流程, 将所述多模终端的状态迁移到 PCH状态之前, 还包括:
再次确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区; 所述触发所述多模终端的状态迁移流程, 将所述多模终端的状态迁移到
PCH状态, 包括:
若再次确定的结果为存在 LTE邻区, 则触发所述多模终端的状态迁移流 程, 将所述多模终端的状态迁移到 PCH状态。
3、 根据权利要求 2所述的方法, 其特征在于, 还包括:
若再次确定的结果为不存在 LTE邻区, 则触发所述多模终端的状态迁移 流程 , 将所述多模终端的状态迁移到所述 PCH状态之外的其它状态。
4、 根据权利要求 1所述的方法, 其特征在于, 还包括:
在所述第二 PS不活动检测定时器超时时,再次确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区;
若再次确定的结果为存在 LTE邻区, 则触发所述多模终端的状态迁移流 程, 将所述多模终端的状态迁移到 PCH状态。
5、 根据权利要求 4所述的方法, 其特征在于, 还包括:
若再次确定的结果为不存在 LTE邻区, 则触发所述多模终端的状态迁移 流程 , 将所述多模终端的状态迁移到所述 PCH状态之外的其它状态。
6、 根据权利要求 1〜5中任一项所述的方法, 其特征在于, 所述确定多模 终端当前驻留的 UMTS小区是否存在 LTE邻区, 包括:
确定所述多模终端当前驻留的 UMTS 小区是否存在优先级高于所述 UMTS小区的 LTE邻区。
7、 一种无线网络控制器, 其特征在于, 包括:
确定模块,用于确定多模终端当前驻留的 UMTS小区是否存在 LTE邻区; 定时器启动模块, 用于若存在, 则启动第一 PS不活动检测定时器, 否则 启动第二 PS不活动检测定时器, 所述第一 PS不活动检测定时器的定时时长 小于第二 PS不活动检测定时器的定时时长;
状态迁移触发模块, 用于在第一 PS不活动检测定时器超时时, 触发所 述多模终端的状态迁移流程, 将所述多模终端的状态迁移到 PCH状态, 以使 所述多模终端从 UMTS网络重选回 LTE网络。
8、根据权利要求 7所述的无线网络控制器,其特征在于,所述确定模块, 还用于在所述状态迁移触发模块触发所述多模终端的状态迁移流程, 将所述 多模终端的状态迁移到 PCH状态之前,再次确定多模终端当前驻留的 UMTS 小区是否存在 LTE邻区;
所述状态迁移触发模块, 具体用于若再次确定的结果为存在 LTE邻区, 则触发所述多模终端的状态迁移流程,将所述多模终端的状态迁移到 PCH状 态。
9、 根据权利要求 8所述的无线网络控制器, 其特征在于, 所述状态迁移 触发模块还用于在所述确定模块再次确定的结果为不存在 LTE邻区, 则触发 所述多模终端的状态迁移流程,将所述多模终端的状态迁移到所述 PCH状态 之外的其它状态。
10、 根据权利要求 7所述的无线网络控制器, 其特征在于, 所述确定模 块,还用于在所述第二 PS不活动检测定时器超时时,再次确定多模终端当前 驻留的 UMTS小区是否存在 LTE邻区;
所述状态迁移触发模块, 还用于若再次确定的结果为存在 LTE邻区, 则 触发所述多模终端的状态迁移流程,将所述多模终端的状态迁移到 PCH状态。
11、 根据权利要求 10所述的无线网络控制器, 其特征在于, 所述状态迁 移触发模块, 还用于若所述确定模块再次确定的结果为不存在 LTE邻区, 则 触发所述多模终端的状态迁移流程, 将所述多模终端的状态迁移到所述 PCH 状态之外的其它状态。
12、 根据权利要求 7〜11中任一项所述的无线网络控制器, 其特征在于, 所述确定模块, 具体用于确定所述多模终端当前驻留的 UMTS小区是否存在 优先级高于所述 UMTS小区的 LTE邻区。
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