WO2013004047A1 - Procédé de sélection de cellule et terminal - Google Patents

Procédé de sélection de cellule et terminal Download PDF

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Publication number
WO2013004047A1
WO2013004047A1 PCT/CN2011/079550 CN2011079550W WO2013004047A1 WO 2013004047 A1 WO2013004047 A1 WO 2013004047A1 CN 2011079550 W CN2011079550 W CN 2011079550W WO 2013004047 A1 WO2013004047 A1 WO 2013004047A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
terminal
information
operator
access network
Prior art date
Application number
PCT/CN2011/079550
Other languages
English (en)
Chinese (zh)
Inventor
郑宏涛
尚江峰
高夕玲
陆大明
张佳妮
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013004047A1 publication Critical patent/WO2013004047A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • 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

Definitions

  • the present invention relates to the field of communications, and in particular to a method and a terminal for cell selection.
  • PLMN1 first operator
  • PLMN2 second carrier
  • the user of the PLMN1 can register to the network of any access technology of the PLMN2, and the user of the PLMN1 registers with the access technology of the lj PLMN2 (for example: Global System for Mobile Communication (GSM))
  • GSM Global System for Mobile Communication
  • WCDMA Wideband Code Division Multiple Access
  • the user of the PLMN1 can roam to the network of the access technology (Radio access technology, RAT for short) 1 of the PLMN2, and the PLMN2 has Network for Access Technology 1 (RATI) and Access Technology 2 (RAT2).
  • the neighbor cell information set by the RATI network may contain the cell information of RAT2, so that the user may reselect or switch to the network of RAT2, but in registration Or, when authenticating, RAT2 will reject the user again, and there is a possibility that the call may be dropped or the data link may be disconnected.
  • an effective solution has not yet been proposed.
  • a method for cell selection including: acquiring, by a terminal, neighbor cell information; determining, by the terminal, that the acquired neighbor cell information includes cell information of a second access network; and the terminal from its neighboring cell
  • the cell corresponding to the cell information is filtered, and when performing cell reselection or handover, the terminal selects the target cell from the filtered neighboring cells.
  • the method further includes: determining, by the terminal, roaming from the first access network of the first operator currently used to the second access network of the second operator.
  • the method further includes: determining, by the terminal, that the first operator is different from the second operator; and/or determining that the terminal prohibits the terminal from accessing the second access network.
  • the filtering, by the terminal, the cell corresponding to the cell information from the neighboring cell includes: deleting, by the terminal, the cell corresponding to the cell information from the neighbor cell list.
  • the selecting, by the terminal, the target cell from the filtered neighboring cell includes: the terminal measuring, by deleting, the signal quality of the neighboring cell in the neighbor cell list and the current serving cell of the terminal after deleting the cell corresponding to the cell information; When the quality reaches the preset condition, the terminal selects to delete the neighboring cell in the neighbor cell list after the cell corresponding to the cell information, and performs cell reselection or handover.
  • a terminal including: an obtaining module, configured to acquire neighboring cell information; and a determining module, configured to determine that the acquired neighboring cell information includes cell information of the second access network;
  • the filtering module is configured to filter the cell corresponding to the cell information from the neighboring cell of the terminal, and the selecting module is configured to select the target cell from the filtered neighboring cells when performing cell reselection or handover.
  • the determining module is further configured to determine to roam from the first access network of the first operator currently in use to the second access network of the second operator.
  • the determining module is further configured to determine that the first operator is different from the second operator; and/or determine to prohibit the terminal from accessing the second access network.
  • the filtering module is configured to delete a cell corresponding to the cell information from its neighbor cell list.
  • the foregoing selecting module includes: a measuring unit, configured to measure a signal quality of a neighboring cell in a neighboring cell list and a current serving cell of the terminal after deleting a cell corresponding to the cell information; selecting a unit, setting To select a neighboring cell in the neighbor cell list after deleting the cell corresponding to the cell information, the cell reselection or handover is performed when the signal quality reaches the preset condition.
  • the present invention adopts a technical solution for filtering neighbor cell information acquired by a terminal and selecting a target cell from the filtered neighboring cells, and solves the related art, in some cases (for example, the terminal is in the first When the access network roams to the second access network, technical problems such as dropped calls or abnormally disconnected data connections due to handover between systems, thereby avoiding disconnection of data connections due to dropped calls caused by inter-system handover The effect is more effective in improving the user experience.
  • FIG. 1 is a flowchart of a method for cell selection according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of a terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a terminal according to a preferred embodiment of the present invention.
  • 4 is a schematic flow chart of an inter-system limit switching of a mobile terminal according to a preferred embodiment 2 of the present invention
  • Step S102 The terminal acquires neighbor cell information, that is, acquires neighbor cell information of a cell where the terminal is currently located; in actual application, the first operator and the second operator may be the same, or different.
  • Step S104 The terminal determines that the acquired neighbor cell information includes cell information of the second access network.
  • Step S106 The terminal filters the cell corresponding to the cell information of the second access network from the neighboring cell, and when performing cell reselection or handover, the terminal selects the target cell from the filtered neighboring cells.
  • the neighbor cell information acquired by the terminal may be filtered, and the target cell is selected from the filtered neighboring cells, especially in the first carrier.
  • the second carrier is different from the second carrier, technical problems such as dropped calls or abnormally disconnected data connections due to handover between systems can be solved, and the technical effect of improving the user experience is achieved.
  • the terminal may further include: determining, by the terminal, roaming from the first access network of the first operator currently used to the second access network of the second operator.
  • the foregoing terminal may also run the foregoing processing process when the first carrier or the second operator is different.
  • the terminal determines that the neighbor cell information includes the cell information of the second access network.
  • the following process may also be included: The terminal determines that the first operator is different from the second carrier.
  • the terminal determines to prohibit the terminal from accessing the second access network. In this way, the preconditions of the foregoing method are limited. Only when the above conditions are met (that is, the terminal determines that the terminal is prohibited from accessing the second access network), the neighbor cell information is filtered, which can save network running resources.
  • the foregoing terminal may implement filtering the cell corresponding to the cell information from the neighboring cell of the terminal by: the terminal deleting the cell corresponding to the cell information from the neighbor cell list.
  • the foregoing terminal selects a target cell from the filtered neighboring cells, and may include the following process: the terminal performs signal quality on the neighboring cell in the neighbor cell list and the current serving cell in the neighbor cell list after deleting the cell corresponding to the cell information. Measurement: When the signal quality reaches the preset condition, the terminal selects to delete the neighboring cell in the neighbor cell list after the cell corresponding to the cell information, and performs cell reselection or handover.
  • a terminal is provided, which is used to implement the foregoing embodiments and preferred embodiments. The descriptions of the modules and the preferred embodiments are omitted. The modules involved in the device are described below.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the terminals described in the following embodiments are preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.
  • 2 is a structural block diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 2, the terminal includes: an obtaining module 20, configured to acquire neighbor cell information; The determining module 22 is connected to the obtaining module 20, and is configured to determine that the acquired neighboring cell information includes cell information of the second access network.
  • the filtering module 24 is connected to the determining module 22, and is configured to be filtered from the neighboring cell of the terminal.
  • the selecting module 26 is connected to the filtering module 24, and is configured to select the target cell from the filtered neighboring cells when performing cell reselection or handover.
  • the determining module 22 is further configured to determine to roam from the first access network of the first operator currently in use to the second access network of the second operator.
  • the determining module 22 is further configured to determine that the first operator and the second operator are different; and/or determine that the terminal is prohibited from accessing the second access network.
  • the filtering module 24 is configured to delete the cell corresponding to the cell information from the neighbor cell list. In a preferred embodiment of the present invention, as shown in FIG.
  • the foregoing selecting module 26 includes: a measuring unit 260, configured to set a neighboring cell and a terminal in a neighbor cell list after deleting a cell corresponding to the cell information. The signal quality of the current serving cell is measured; the selecting unit 262 is configured to: when the signal quality reaches the preset condition, select to delete the neighboring cell in the neighbor cell list after the cell corresponding to the cell information, and perform cell reselection or switching. .
  • a measuring unit 260 configured to set a neighboring cell and a terminal in a neighbor cell list after deleting a cell corresponding to the cell information. The signal quality of the current serving cell is measured
  • the selecting unit 262 is configured to: when the signal quality reaches the preset condition, select to delete the neighboring cell in the neighbor cell list after the cell corresponding to the cell information, and perform cell reselection or switching.
  • the user of PLMN1 can roam to the network of access technology 1 (RATI) of PLMN2, and PLMN2 has access at the same time.
  • the above RATI and RAT2 may be GSM, CDMA, CDMA2000, WCDMA, or the like.
  • Preferred Embodiment 1 This embodiment provides a method for implementing a terminal to selectively restrict inter-system handover.
  • the terminal when the terminal registers with the SIM/USIM card of the operator PLMN1 to the network of the access technology A of the operator PLMN2, it cannot reselect or switch to the network of the access technology B of the operator PLMN2; Other operators When the SIM/USIM card or the terminal registers with the SIM/USIM card of the operator PLMN1 to other networks other than the operator PLMN2, the terminal can perform inter-system handover or reselection.
  • the protocol stack of the terminal needs to be modified appropriately, and an adjacent cell filtering module is added on the basis of the original protocol.
  • the neighboring cell filtering module Do the appropriate filtering.
  • the terminal When registering to the network where the access technology is RATI, if it is detected that the RATI network is configured with information of the neighboring cell, the terminal needs to properly filter the neighboring cell information. First, the terminal checks whether the currently used SIM/USIM card is The SIM/USIM card of PLMN1, if not, the terminal does not need to filter the neighbor cell information. If yes, the terminal checks whether the currently registered network is PLMN2. If yes, the terminal associates the RAT2 in the neighboring cell configured by the RATI network. The cell is filtered out so that the terminal does not reselect or switch to the cell of RAT2. In general, the network sends the reselected cell information and the switched cell information to the terminal respectively.
  • the terminal needs to perform cell information filtering.
  • the information of the PLMN1, the PLMN2 and the RAT that cannot be registered needs to be recorded in the non-volatile (NV) of the terminal, and the terminal can pass the user interface in order to facilitate subsequent changes in the network setting.
  • UI User Interface
  • the foregoing embodiment optimizes the prior art to prevent the user from being dropped or the data connection is abnormally disconnected due to handover between systems in some cases, thereby effectively improving the user experience.
  • Preferred Embodiment 2 In this embodiment, a flow before the system is restricted between handovers of the mobile terminal will be described first with reference to FIG. As shown
  • Step S402 The mobile terminal is powered on, and the terminal searches for an available cell according to its own capability.
  • Step S404 After searching for the cell, the terminal first reads the broadcast information and performs an appropriate access restriction check. If the cell does not restrict user access, the terminal performs a registration process.
  • Step S406 After the registration is completed, the mobile terminal reads the neighbor cell information from the broadcast message, and periodically detects the signal quality of the current serving cell and the neighboring cell. When the signal quality of the neighboring cell reaches the switching condition, the terminal The switching process will take place.
  • Step S408 It is checked whether the neighboring cell of RAT2 is better than the current serving cell.
  • Step S410 The mobile terminal performs location update and routing update under RAT2. Then, the flow of the inter-system handover restriction according to the present embodiment will be described with reference to FIG. As shown in FIG. 5, the process includes: Step S502: The mobile terminal is powered on, and the terminal searches for an available cell according to its own capability. In this embodiment, it is assumed that the terminal searches for an available cell of the RATI. Step S504: After searching for the cell, the terminal first reads the broadcast information, and performs an appropriate access restriction check. If the cell does not restrict user access, the terminal performs a registration process.
  • Step S506 After the registration is completed, the mobile terminal reads the neighbor cell information from the broadcast message.
  • Step S508 The terminal checks whether the currently used SIM/USIM card belongs to PLMN1. If not, it jumps to step S514 to perform normal cell reselection, and if yes, proceeds to the next operation.
  • Step S510 It is checked whether the currently registered network is the RATI network of the PLMN2. If not, the process goes to step S514 to continue, and if yes, the next operation is continued.
  • Step S512 Delete the neighboring cell related to RAT2 from the neighbor cell list.
  • Step S514 Perform measurement on the neighboring cell and the current serving cell by using the current neighbor cell list, and perform cell reselection if the cell reselection criterion is reached.
  • the system includes: an information acquiring module 60: the module is a module in the prior art, and after the terminal registers with the network, acquires information of a neighboring cell from a network broadcast message or a measurement control message, for Terminal measurement.
  • the information filtering module 62 the module is an adding module of the embodiment, which reads the relevant filtering condition from the configuration information of the terminal, and then the information according to the access technology of the terminal registration network and the currently used SIM/USIM card.
  • the neighboring cell information acquired by the obtaining module 60 is filtered, and then the filtered cell information is sent to the cell measurement module 64.
  • the cell measurement module 64 The module is a module in the prior art, and obtains the filtered neighboring cell from the information filtering module 62 to perform neighbor cell measurement.
  • the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Abstract

L'invention porte sur un procédé de sélection de cellule et sur un terminal, le procédé comprenant les opérations suivantes : un terminal obtient les informations d'une cellule voisine ; le terminal détermine que les informations obtenues de la cellule voisine comprennent les informations de cellule d'un second réseau d'accès ; le terminal filtre la cellule voisine pour une cellule correspondant aux informations de cellule du second réseau d'accès, et sélectionne une cellule cible parmi les cellules voisines filtrées durant une resélection de cellule ou un transfert intercellulaire. La solution technique de la présente invention résout les problèmes techniques de perte d'appel ou de déconnexion de données anormale dans l'état de la technique provoqués par le transfert entre systèmes dans certaines situations (par exemple, lorsque le terminal se déplace d'un premier réseau d'accès au second réseau d'accès), évitant de ce fait une perte d'appel ou une déconnexion de données anormale par le transfert entre systèmes, et améliorant efficacement l'expérience utilisateur.
PCT/CN2011/079550 2011-07-06 2011-09-09 Procédé de sélection de cellule et terminal WO2013004047A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201110187920 CN102869050A (zh) 2011-07-06 2011-07-06 小区选择的方法及终端
CN201110187920.5 2011-07-06

Publications (1)

Publication Number Publication Date
WO2013004047A1 true WO2013004047A1 (fr) 2013-01-10

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WO (1) WO2013004047A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105376761B (zh) * 2015-10-12 2019-01-11 腾讯科技（深圳）有限公司 建立通话连接的方法、装置和通话系统
WO2021146974A1 (fr) * 2020-01-22 2021-07-29 Qualcomm Incorporated Techniques d'inscription de réseau

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CN101569222A (zh) * 2006-12-29 2009-10-28 诺基亚公司 受禁相邻小区列表
CN101675685A (zh) * 2007-04-30 2010-03-17 交互数字技术公司 在家庭节点-b中的移动性过程和差分计费
CN102067669A (zh) * 2008-06-16 2011-05-18 三星电子株式会社 用于管理无线接入网络中的切换的方法和系统
CN102075938A (zh) * 2011-02-25 2011-05-25 北京交通大学 基于地址锁机制的快速重认证方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101569222A (zh) * 2006-12-29 2009-10-28 诺基亚公司 受禁相邻小区列表
CN101675685A (zh) * 2007-04-30 2010-03-17 交互数字技术公司 在家庭节点-b中的移动性过程和差分计费
CN102067669A (zh) * 2008-06-16 2011-05-18 三星电子株式会社 用于管理无线接入网络中的切换的方法和系统
CN102075938A (zh) * 2011-02-25 2011-05-25 北京交通大学 基于地址锁机制的快速重认证方法

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