WO2017128489A1 - Procédé et terminal de sélection de cellule - Google Patents

Procédé et terminal de sélection de cellule Download PDF

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Publication number
WO2017128489A1
WO2017128489A1 PCT/CN2016/074901 CN2016074901W WO2017128489A1 WO 2017128489 A1 WO2017128489 A1 WO 2017128489A1 CN 2016074901 W CN2016074901 W CN 2016074901W WO 2017128489 A1 WO2017128489 A1 WO 2017128489A1
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WO
WIPO (PCT)
Prior art keywords
terminal
frequency point
cell
current cell
system message
Prior art date
Application number
PCT/CN2016/074901
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English (en)
Chinese (zh)
Inventor
张祖辉
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宇龙计算机通信科技(深圳)有限公司
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Filing date
Publication date
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Publication of WO2017128489A1 publication Critical patent/WO2017128489A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/06—Access restriction performed under specific conditions based on traffic conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • 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 technologies, and in particular, to a cell selection method and a terminal.
  • the terminal After the terminal is powered on, it will first find the network and get in touch with the network to get the services of the network.
  • the terminal selects a BCCH (Broadcast Control Channel) cell with the best signal strength that satisfies the cell selection criterion to camp, if the cell in which the terminal resides does not support the emergency call.
  • BCCH Broadcast Control Channel
  • the service will cause the cardless terminal to fail to initiate an emergency call in the cell, thereby affecting the normal use of the user and causing unnecessary loss to the user.
  • the embodiment of the invention provides a cell selection method and a terminal, which can ensure that the terminal camps on a cell supporting an emergency call without a card, and ensures that the terminal emergency call can be initiated normally.
  • an embodiment of the present invention provides a cell selection method, including:
  • the terminal During the process of performing cell selection after the terminal is powered on, the terminal reads a system message on a broadcast control channel BCCH frequency point of the current cell;
  • the terminal determines, according to the read system message on the BCCH frequency point, whether the current cell is a forbidden cell
  • the terminal determines, according to the system message on the BCCH frequency point, whether the current cell supports an emergency call
  • the terminal determines, according to the system message on the BCCH frequency, whether the path loss principle parameter C1 of the current cell is greater than 0;
  • the terminal resides in the current cell.
  • the terminal is Obtaining, by the system message on the BCCH frequency point, whether the current cell is a forbidden cell, including:
  • Determining, by the system message according to the BCCH frequency, whether the current cell supports an emergency call including:
  • the terminal determines, according to the system emergency message 3 on the BCCH frequency point and/or the emergency call identifier EC in the system message 4, whether the current cell supports an emergency call.
  • the terminal reads a system message on a broadcast control channel BCCH frequency point of a current cell Previously, it also included:
  • the terminal locates a public land mobile network PLMN in an area of the terminal after being powered on;
  • the terminal selects a target PLMN in the PLMN to provide a service to the terminal;
  • the terminal sequentially locks each frequency point in the target PLMN according to the signal strength from large to small, and searches for a frequency correction channel of the currently locked target frequency point;
  • the terminal synchronizes with the BCCH frequency point through the synchronization channel SCH.
  • the terminal does not have a subscriber identity card installed.
  • the terminal is a mobile station MS or a user equipment UE.
  • an embodiment of the present invention provides a terminal, including:
  • a first reading unit configured to read a system message on a broadcast control channel BCCH frequency point of the current cell in a process of performing cell selection after the terminal is powered on;
  • a first determining unit configured to determine, according to the read system message on the BCCH frequency point, whether the current cell is a forbidden cell
  • a second determining unit configured to determine, according to the system message on the BCCH frequency point, whether the current cell supports an emergency call, if the first determining unit determines that the current cell is a non-forbidden cell;
  • a third determining unit configured to determine, according to the system message on the BCCH frequency point, whether the path loss principle parameter C1 of the current cell is greater than 0, if the second determining unit determines that the current cell supports an emergency call;
  • a camping unit configured to reside in the current cell if the third determining unit determines that C1 of the current cell is greater than 0.
  • the first determining unit is specifically configured to:
  • the second determining unit is specifically configured to:
  • Whether the current cell supports an emergency call is determined according to the system emergency message number 3 on the BCCH frequency and/or the emergency call identifier EC in the system message 4.
  • the terminal further includes:
  • a determining unit configured to locate a public land mobile network PLMN in an area of the terminal after the terminal is powered on;
  • a selecting unit configured to select a target PLMN in the PLMN to provide a service to the terminal
  • a search unit configured to sequentially lock each frequency point in the target PLMN in order of increasing signal strength, and search for a frequency correction channel of the currently locked target frequency point;
  • a fourth determining unit configured to determine whether the target frequency point is a BCCH frequency point
  • a synchronization unit configured to: if the fourth determining unit determines that the target frequency point is a BCCH frequency point, synchronize with the BCCH frequency point by using a synchronization channel SCH.
  • the terminal does not have a subscriber identity card installed.
  • the terminal is a mobile station MS or a user equipment UE.
  • the terminal In the process of performing the cell selection after the terminal is powered on, the terminal reads the system message on the BCCH frequency point of the current cell, and determines whether the current cell is a forbidden cell according to the system message of the BCCH frequency point. No, the terminal according to the BCCH frequency system message The terminal determines whether the current cell supports the emergency call. If yes, the terminal further determines whether the C1 parameter value of the current cell is greater than 0. If yes, the terminal resides on the current cell, thereby implementing normal initiation of the emergency call. Therefore, it can be ensured that the terminal camps on the cell supporting the emergency call without the card, and ensures that the emergency call of the terminal can be initiated normally.
  • FIG. 1 is a schematic flowchart of a cell selection method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of another cell selection method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another terminal according to an embodiment of the present invention.
  • the terminals described in the following embodiments include, but are not limited to, a mobile station (Mobile Station, MS) in the 2G network, and a user equipment (User Equipment, UE) in the 3G and 4G networks, which may include, but are not limited to, a mobile phone (eg, Android phones, iOS phones, etc.), tablets, personal digital assistants (PDAs), smart wearable devices (smart watches, etc.) or other mobile terminal devices with communication functions.
  • a mobile phone eg, Android phones, iOS phones, etc.
  • PDAs personal digital assistants
  • smart wearable devices smart watch, etc.
  • the embodiment of the invention provides a cell selection method and a terminal, which can ensure that the terminal camps on a cell supporting an emergency call without a card, and ensures that the terminal emergency call can be initiated normally. The details are described below separately.
  • FIG. 1 is a schematic flowchart of a cell selection method according to an embodiment of the present invention. As shown in FIG. 1, the cell selection method is applied to a terminal, and the method may include, but is not limited to, the following steps.
  • the terminal reads a system message on a broadcast control channel BCCH frequency point of the current cell.
  • step S103 The terminal determines, according to the read system message on the BCCH frequency point, whether the current cell is a forbidden cell. If not, step S105 is performed; if yes, the process returns to step S101.
  • the terminal determines, according to the system message on the BCCH frequency point, whether the current cell supports an emergency call, and if yes, performs step S107; if not, returns to step S101.
  • step S107 The terminal determines, according to the system message on the BCCH frequency point, whether the path loss principle parameter C1 of the current cell is greater than 0. If yes, step S109 is performed; if no, return to step S101.
  • the terminal resides in the current cell.
  • the terminal performs a cell selection process after the power is turned on, the terminal reads the system message on the BCCH frequency point of the current cell, and determines whether the current cell is a forbidden cell according to the system message on the BCCH frequency point. If not, the terminal further determines, according to the system message on the BCCH frequency point, whether the current cell supports an emergency call, and if yes, the terminal further determines, according to the system message on the BCCH frequency point, the current cell.
  • the path loss principle parameter C1 is greater than 0. If it is greater than, the current cell is a suitable cell, and the terminal camps on the current cell, otherwise the terminal will reselect another cell as the current cell. Repeat the above process.
  • the terminal is a terminal that does not have a user identification card, and the user identification card includes, but is not limited to, a USIM (Universal Subscriber Identity Module) card and a SIM (Subscriber Identity Module, SIM) card.
  • a parameter is defined as the path loss principle C1.
  • A RXLEV - RXLEV_ACCESS_MIN (dBm)
  • B MS_TXPWR_MAX_CCH-P (dBm)
  • RXLEV average level received by the terminal
  • P maximum output power level that the mobile station (MS) can provide
  • RXLEV_ACCESS_MIN minimum receiving level required by the MS to access the system
  • MS_TXPWR_MAX_CCH the maximum transmit power level that the MS can use when accessing the system.
  • C1 is calculated by each terminal, which defines the coverage area of each cell. Outside the cell, C1 is Negative; it determines the boundary between two neighboring cells in the standby state, and the parameters for calculating C1 are broadcast by the network in the system message.
  • the terminal determines, according to the read system message on the BCCH frequency point, whether the current cell is a forbidden cell, including:
  • the terminal determines whether the current cell is a forbidden cell according to the cell-disabled access identifier in the system message 3 and/or the system message 4 on the BCCH frequency point.
  • Determining, by the system message according to the BCCH frequency, whether the current cell supports an emergency call including:
  • the terminal determines, according to the system emergency message 3 on the BCCH frequency point and/or the emergency call identifier EC in the system message 4, whether the current cell supports an emergency call.
  • the terminal reads the system message type 3 on the BCCH frequency of the current cell, or the system message type 4, and the system message type 3 or the system message type 4 includes a RACH (Random Access Channel) control message.
  • the RACH control message includes a parameter CELL BAR ACCESS, and the terminal determines whether the current cell is a forbidden cell according to the identifier of CELL BAR ACCESS. If the identifier of CELL BAR ACCESS is notBarred, then The current cell is a non-forbidden cell. If the identifier of the CELL BAR ACCESS is Barred, the current cell is a forbidden cell, and the RACH control message further includes an emergency call allowed (EC). Whether the terminal is allowed to initiate an emergency call identifier), if the EC identifier is 0, it indicates that the current cell supports an emergency call, and if the EC identifier is 1, it indicates that the current cell does not support an emergency call.
  • EC emergency call allowed
  • the terminal in the process of performing cell selection after the terminal is powered on, the terminal reads a system message on a BCCH frequency point of the current cell, and determines, according to the system message of the BCCH frequency point, whether the current cell is The cell is forbidden. If not, the terminal determines whether the current cell supports the emergency call according to the system message of the BCCH frequency. If supported, the terminal further determines whether the C1 parameter value of the current cell is greater than 0. If yes, the terminal station Stay on the current cell to enable normal initiation of emergency calls. Therefore, it can be ensured that the terminal camps on the cell supporting the emergency call without the card, and ensures that the emergency call of the terminal can be initiated normally.
  • FIG. 2 is a schematic flowchart diagram of another cell selection method according to an embodiment of the present invention. As shown in FIG. 2, the cell selection method may include, but is not limited to, the following steps.
  • the terminal locates a public land mobile network PLMN in an area of the terminal after being powered on.
  • the terminal selects a target PLMN in the PLMN to provide a service to the terminal.
  • the terminal sequentially locks each frequency point in the target PLMN according to a signal strength from large to small, and searches for a frequency correction channel of the currently locked target frequency point.
  • step S207 The terminal determines whether the target frequency point is a BCCH frequency point. If yes, step S209 is performed; if no, the process returns to step S205.
  • the terminal synchronizes with the BCCH frequency point by using a synchronization channel SCH.
  • the terminal reads a system message on a broadcast control channel BCCH frequency point of the current cell.
  • step S213. The terminal determines, according to the read system message on the BCCH frequency point, whether the current cell is a forbidden cell. If not, step S215 is performed; if yes, the process returns to step S205.
  • the terminal determines, according to the system message on the BCCH frequency point, whether the current cell supports an emergency call, and if yes, performs step S217; if not, returns to step S205.
  • step S217 The terminal determines, according to the system message on the BCCH frequency, whether the path loss principle parameter C1 of the current cell is greater than 0. If yes, step S219 is performed; if no, return to step S205.
  • the terminal resides in the current cell.
  • the terminal locates all PLMNs (Public Land Mobile Networks) in the area where the terminal is located, and selects one of all PLMNs as the target PLMN to provide services for the terminal.
  • the terminal scans all frequency points of all frequency bands supported by the terminal, and sorts all frequency points according to the signal strength of each frequency point, and then the terminal first adjusts the frequency to the frequency point with the highest signal strength.
  • Searching for the FCCH (Frequency Correction Channel) on the frequency point to determine whether the frequency point is a BCCH frequency point, and if so, the terminal synchronizes with the BCCH frequency point by decoding a SCH (Synchronization Channel).
  • FCCH Frequency Correction Channel
  • the terminal After the synchronization succeeds, the terminal reads the system message on the BCCH frequency point, and determines whether the current cell corresponding to the BCCH frequency point is a non-forbidden cell according to the read system message, whether the emergency call is supported, and the path loss of the cell Whether the criterion C1 is greater than 0, if the above three conditions are satisfied, the terminal can camp on the cell, otherwise the terminal Reselection from the second strongest frequency, the second strongest frequency as the target frequency, the above process is repeated.
  • the terminal in the process of performing cell selection after the terminal is powered on, the terminal reads the system message on the BCCH frequency point of the current cell, and the system cancels according to the BCCH frequency point. Determine whether the current cell is a forbidden cell, and if not, the terminal determines whether the current cell supports an emergency call according to the system message of the BCCH frequency point. If supported, the terminal further determines whether the current cell C1 parameter value is greater than 0. If yes, the terminal resides on the current cell, so as to implement the normal initiation of the emergency call. Therefore, it can be ensured that the terminal camps on the cell supporting the emergency call without the card, and ensures that the emergency call of the terminal can be initiated normally.
  • FIG. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal 30 includes: a first reading unit 301, a first determining unit 303, a second determining unit 305, a third determining unit 307, and a camping unit 309, where
  • the first reading unit 301 is configured to read a system message on a broadcast control channel BCCH frequency point of the current cell in the process of performing cell selection after the terminal 30 is powered on;
  • the first determining unit 303 is configured to determine, according to the read system message on the BCCH frequency point, whether the current cell is a forbidden cell;
  • the second determining unit 305 is configured to determine, according to the system message on the BCCH frequency point, whether the current cell supports an emergency call, if the first determining unit 303 determines that the current cell is a non-forbidden cell;
  • the third determining unit 307 is configured to determine, according to the system message on the BCCH frequency point, whether the parameter C1 of the path loss principle of the current cell is greater than if the second determining unit 305 determines that the current cell supports an emergency call. 0;
  • the camping unit 309 is configured to reside in the current cell if the third determining unit 307 determines that the C1 of the current cell is greater than 0.
  • the first determining unit 303 is specifically configured to:
  • the second determining unit 305 is specifically configured to:
  • the first determining unit 303 determines that the current cell is a non-forbidden cell, it is determined according to the allowed emergency call identifier EC in the system message 3 and/or the system message 4 on the BCCH frequency point. Whether the current cell supports an emergency call.
  • FIG. 4 is a schematic structural diagram of another terminal according to an embodiment of the present invention.
  • the terminal 30 shown in FIG. 4 is optimized by the terminal 30 shown in FIG. Compared with FIG. 3, the terminal 30 described in FIG. 4 includes a first reading unit 301, a first determining unit 303, a second determining unit 305, a third determining unit 307, and a camping unit 309, and further includes: determining unit 311, a selection unit 313, a search unit 315, a fourth determination unit 317, and a synchronization unit 319, wherein
  • a determining unit 311, configured to locate a public land mobile network PLMN in an area of the terminal 30 after the terminal 30 is powered on;
  • a selecting unit 313, configured to select a target PLMN in the PLMN to provide a service to the terminal 30;
  • the searching unit 315 is configured to sequentially lock each frequency point in the target PLMN according to the signal strength from large to small, and search for a frequency correction channel of the currently locked target frequency point;
  • the fourth determining unit 317 is configured to determine whether the target frequency point is a BCCH frequency point
  • the synchronization unit 319 is configured to synchronize with the BCCH frequency point through the synchronization channel SCH if the fourth determination unit 317 determines that the target frequency point is a BCCH frequency point.
  • the terminal 50 may include: an input and output module (including an audio input and output module 515, a key input module 517, and a display 519, etc.), a user interface 501, a mobile processor 503, a transmitter 505, and a receiver 507. , a coupler 509, an antenna 511, and a memory 513.
  • these components may be connected by a bus or other means, wherein FIG. 5 is exemplified by a bus connection. among them:
  • the antenna 511 is used to convert electromagnetic energy in the transmission line into electromagnetic waves in free space, or to convert electromagnetic waves in free space into electromagnetic energy in the transmission line;
  • the coupler 509 is used to divide the mobile signal into multiple channels and distribute it to multiple Receiver 507.
  • the transmitter 505 is configured to perform a transmission process (eg, modulation) on the mobile communication signal generated by the mobile processor 503, and the receiver 507 is configured to perform a reception process (eg, demodulation) on the mobile communication signal received by the antenna 511, which can be regarded as A wireless modem.
  • the number of the transmitter 505 or the receiver 507 may be one or more.
  • the input and output module is mainly used to implement the interaction function between the terminal 50 and the user/external environment, and mainly includes an audio input and output module 515, a key input module 517, a display 519, and the like.
  • the input and output module may further include: a camera, a touch screen, a sensor, and the like.
  • the input and output modules communicate with the mobile processor 503 through the user interface 501.
  • Memory 513 is coupled to mobile processor 503 for storing various software programs and/or sets of instructions.
  • memory 513 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices.
  • the mobile processor 503 is mainly used to call a cell selection program stored in the memory 513, and performs the following operations:
  • the receiver 507 is used to read the system message on the broadcast control channel BCCH frequency point of the current cell;
  • the processor 501 performs, according to the read system message on the BCCH frequency point, whether the current cell is a forbidden cell, including:
  • the processor 501 performs, according to the system message on the BCCH frequency point, whether the current cell supports an emergency call, including:
  • Allow emergency calls in system message 3 and/or system message 4 on the BCCH frequency The identifier EC determines whether the current cell supports an emergency call.
  • the processor 501 before the processor 501 performs reading the system message on the broadcast control channel BCCH frequency point of the current cell, the processor 501 further performs:
  • Each frequency point in the target PLMN is sequentially locked in order of increasing signal strength, and the frequency correction channel of the currently locked target frequency point is searched;
  • the BCCH frequency is synchronized by the synchronization channel SCH.
  • the terminal 50 does not have a subscriber identity card installed.
  • the terminal 50 is a mobile station MS or a user equipment UE.
  • the terminal in the process of performing cell selection after the terminal is powered on, the terminal reads the system message on the BCCH frequency point of the current cell, and determines whether the current cell is a forbidden cell according to the system message of the BCCH frequency point, and if not, The terminal determines whether the current cell supports the emergency call according to the system message of the BCCH frequency point. If yes, the terminal further determines whether the C1 parameter value of the current cell is greater than 0. If yes, the terminal resides on the current cell. Thereby achieving the normal initiation of an emergency call. Therefore, it can be ensured that the terminal camps on the cell supporting the emergency call without the card, and ensures that the emergency call of the terminal can be initiated normally.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • the units in the terminal in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un procédé de sélection de cellule et un terminal. Le procédé comprend les opérations suivantes : dans le processus dans lequel un terminal est démarré puis exécute une sélection de cellule, le terminal lit un message de système sur un point de fréquence de canal de commande de diffusion (BCCH) d'une cellule courante ; le terminal détermine si la cellule courante est ou non une cellule interdite, selon le message de système lu du point de fréquence de BCCH ; si tel n'est pas le cas, le terminal détermine si la cellule courante prend ou non en charge un appel d'urgence, selon le message de système sur le point de fréquence de BCCH ; si elle le prend en charge, le terminal détermine si un paramètre de principe de perte de chemin C1 de la cellule courante est ou non supérieur à 0, selon le message de système sur le point de fréquence de BCCH ; s'il est supérieur, le terminal réside dans la cellule courante. Au moyen des modes de réalisation de la présente invention, il peut être garanti qu'un terminal sans carte réside dans une cellule prenant en charge un appel d'urgence, et il est garanti que l'appel d'urgence du terminal peut être initié normalement.
PCT/CN2016/074901 2016-01-27 2016-02-29 Procédé et terminal de sélection de cellule WO2017128489A1 (fr)

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CN201610055410.5A CN105554857A (zh) 2016-01-27 2016-01-27 一种小区选择方法及终端
CN201610055410.5 2016-01-27

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CN108696853B (zh) * 2017-02-27 2021-02-26 华为技术有限公司 一种呼叫建立的方法及终端设备
EP3669583A4 (fr) 2017-08-18 2021-03-24 Lenovo (Beijing) Limited Procédé et appareil d'interdiction de cellule
CN111385783A (zh) * 2018-12-28 2020-07-07 中兴通讯股份有限公司 一种无卡紧急通信方法、终端及计算机可读存储介质
CN115119271A (zh) * 2021-03-23 2022-09-27 维沃移动通信有限公司 小区重选的方法、装置及终端

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101005666A (zh) * 2005-12-21 2007-07-25 三星电子株式会社 移动通信终端中用于紧急呼叫的装置和方法
EP2117277A1 (fr) * 2008-05-09 2009-11-11 Research In Motion Limited Procédé pour la sélection de cellule dans un réseau d'accès radio
CN101742597A (zh) * 2008-11-07 2010-06-16 华为技术有限公司 一种小区重选的方法和装置
EP2605596A1 (fr) * 2011-12-16 2013-06-19 Acer Incorporated Procédé de resélection de cellule en présence de restrictions d'accès aux cellules pour un système de communication mobile et un dispositif mobile associé
CN103581862A (zh) * 2012-07-20 2014-02-12 电信科学技术研究院 一种紧急业务的实现方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100556213C (zh) * 2008-01-10 2009-10-28 嘉兴闻泰通讯科技有限公司 双卡双待手机小区内通话的方法
CN102164391B (zh) * 2010-02-21 2014-10-15 上海摩波彼克半导体有限公司 无线通信系统中移动设备实现小区快速重选的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101005666A (zh) * 2005-12-21 2007-07-25 三星电子株式会社 移动通信终端中用于紧急呼叫的装置和方法
EP2117277A1 (fr) * 2008-05-09 2009-11-11 Research In Motion Limited Procédé pour la sélection de cellule dans un réseau d'accès radio
CN101742597A (zh) * 2008-11-07 2010-06-16 华为技术有限公司 一种小区重选的方法和装置
EP2605596A1 (fr) * 2011-12-16 2013-06-19 Acer Incorporated Procédé de resélection de cellule en présence de restrictions d'accès aux cellules pour un système de communication mobile et un dispositif mobile associé
CN103581862A (zh) * 2012-07-20 2014-02-12 电信科学技术研究院 一种紧急业务的实现方法及装置

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