WO2009138014A1 - Procédé et appareil de resélection de cellule - Google Patents

Procédé et appareil de resélection de cellule Download PDF

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Publication number
WO2009138014A1
WO2009138014A1 PCT/CN2009/071647 CN2009071647W WO2009138014A1 WO 2009138014 A1 WO2009138014 A1 WO 2009138014A1 CN 2009071647 W CN2009071647 W CN 2009071647W WO 2009138014 A1 WO2009138014 A1 WO 2009138014A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
priority parameter
delivered
user priority
target cell
Prior art date
Application number
PCT/CN2009/071647
Other languages
English (en)
Chinese (zh)
Inventor
秦钧
赵旸
王济勇
余勇军
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BRPI0912543-4A priority Critical patent/BRPI0912543B1/pt
Publication of WO2009138014A1 publication Critical patent/WO2009138014A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • 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

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a cell reselection technique.
  • the terminal will remain in the selected cell unchanged, and continue to detect the cell reselection neighbor cell information indicated by the system message of the current serving cell.
  • the user terminal sequentially measures the neighboring cells according to the received neighbor cell information, and searches for a more suitable cell in the neighboring cells (eg, the signal strength and signal quality are better than the signal strength and signal quality of the current serving cell, etc.)
  • the user terminal will trigger a cell reselection to select a more suitable cell and camp when:
  • cell reselection may also be performed according to the corresponding priority parameter, and the corresponding priority parameter may include priorities of different RATs and priorities of different frequencies in the same RAT, and the like.
  • the user terminal
  • Embodiments of the present invention provide a method and apparatus for cell reselection, so that a terminal camped on a new cell can obtain and use a corresponding priority parameter to reliably perform a corresponding priority cell weight. Select the operation.
  • a method of cell reselection comprising:
  • the cell reselection is performed according to the user priority parameter delivered by the source cell saved by the terminal before the user priority parameter sent by the target cell is obtained.
  • a cell reselection device comprising:
  • the source cell parameter obtaining unit is configured to obtain a user priority parameter delivered by the source cell.
  • the first cell reselection unit is configured to send, according to the source cell received by the source cell parameter acquiring unit, the source cell, after the terminal is camped on the target cell, before acquiring the user priority parameter sent by the target cell.
  • the user priority parameter performs cell reselection.
  • the user priority parameter that is sent by the source cell is used before the user priority parameter that is sent by the target cell.
  • the priority cell reselection operation is performed, so that a more suitable priority parameter can be accurately selected in the corresponding priority cell reselection process, so that the desired camping cell can be selected for the user by the corresponding priority cell reselection process.
  • FIG. 1 is a schematic diagram of a cell reselection process according to Embodiment 1;
  • FIG. [24] FIG. 2 is a schematic diagram of a cell reselection process provided by Embodiment 2;
  • FIG. 3 is a schematic structural diagram 1 of a cell reselection apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram 2 of a cell reselection apparatus according to an embodiment of the present invention.
  • the terminal After the terminal enters a certain cell, it can calculate whether to initiate the cell reselection process according to the cell reselection related parameters sent by the network and the measurement result of the neighboring cell in the neighbor cell list.
  • the cell reselection operation before reselecting the terminal that is camped on the target cell, before acquiring the user priority parameter sent by the target cell, the cell reselection operation may be performed according to the user priority parameter delivered by the source cell obtained by the terminal.
  • the priority parameter that can be obtained by the terminal may be, but is not limited to, including the public priority parameter, in addition to the user priority parameter. For this reason, the terminal camping in the new cell is different according to the obtained priority parameter.
  • the following scheme can be used for cell reselection:
  • the cell reselection process is performed according to the user priority parameter delivered by the valid source cell in the target cell;
  • the terminal determines whether the user priority parameter sent by the target cell is received, and if yes, performs cell reselection according to the user priority parameter delivered by the destination cell, otherwise, further determines whether the terminal has a valid source cell.
  • the user priority parameter that is delivered if yes, the cell reselection is performed according to the user priority parameter delivered by the valid source cell, otherwise, the cell reselection is performed according to the public priority parameter delivered by the target cell obtained by the terminal, That is, if the terminal only receives the public priority parameter delivered by the target cell, and there is no valid user priority parameter delivered by the source cell, the cell weight is determined according to the public priority parameter delivered by the target cell received by the terminal. selected.
  • the terminal may specifically
  • the common priority parameter delivered in the source cell performs cell reselection, or may also use a cell reselection mechanism that is not based on the priority parameter, for example, directly performs cell reselection according to the neighbor cell measurement result in the related neighbor cell list. , and many more.
  • the public priority parameter sent by the source cell in the priority parameter that is sent by the source cell Specifically, after the terminal enters the target cell, the public priority parameter delivered by the corresponding source cell is deleted; or the priority parameter is received in the terminal, and the public priority parameter delivered by the corresponding source cell is deleted.
  • the user priority parameter delivered by the source cell in the priority parameter delivered by the source cell that is maintained by the terminal that is to be camped on the new cell (the target cell) Specifically, after the user priority parameter sent by the corresponding source cell is invalid, the user priority parameter sent by the source cell is deleted, or the user priority parameter that is sent by the target cell is deleted. The user priority parameter delivered by the corresponding source cell.
  • the existing cell reselection mechanism may be used for cell reselection.
  • the corresponding cell reselection process is as shown in FIG. 1 , and specifically includes:
  • Step 101 The terminal that enters the target cell deletes the public priority parameter A delivered by the source cell.
  • the terminal obtains only the common priority of the cell at the source cell, that is, the public priority parameter delivered by the source cell.
  • the public priority parameter A delivered by the source cell needs to be deleted
  • Step 102 determining whether the priority parameter is received, and if yes, performing step 104, otherwise, performing the step
  • Step 103 Perform an cell reselection operation by using an existing cell reselection mechanism.
  • Step 104 If it is determined that the priority parameter delivered by the target cell is received, it is determined whether the user priority parameter Ub delivered by the valid destination cell is received, and the user priority delivered by the corresponding destination cell is received. If the parameter Ub is valid, and the user priority parameter Ub delivered by the target cell is valid, step 105 is performed. Otherwise, the user priority parameter Ub delivered by the target cell is not received, or the user sent by the destination cell is received. The priority parameter Ub is invalid, and step 106 is performed;
  • Step 105 Perform a corresponding cell reselection operation by using the user priority parameter Ub delivered by the target cell.
  • the public priority parameter B delivered by the destination cell and the user priority parameter Ub delivered by the destination cell are received, or the user priority parameter Ub delivered by the destination cell is received, and then the destination cell is delivered in the destination cell.
  • the user priority parameter Ub during the lifetime of the Ub is used for cell reselection using the user priority parameter Ub delivered by the destination cell;
  • step 108 is performed.
  • Step 106 determining whether the user priority parameter Ua delivered by the source cell is valid, if yes, executing step 107, otherwise performing step 108;
  • Step 107 Perform a cell reselection operation by using the user priority parameter Ua delivered by the source cell.
  • the user priority parameter Ua delivered by the source cell in the source cell is still in the lifetime, and the user priority parameter Ua delivered by the source cell is still used.
  • the corresponding cell reselection operation is performed until the user priority parameter Ua delivered by the corresponding source cell is no longer valid (if the corresponding timer T320 is exceeded), step 108 is performed.
  • Step 108 Determine whether there is a public priority parameter B delivered by the destination cell. If yes, execute step 109. Otherwise, go to step 103.
  • Step 109 Perform a cell reselection operation by using the public priority parameter B delivered by the corresponding destination cell.
  • Steps 108 and 109 show that the corresponding priority parameter is delivered by the corresponding destination cell.
  • B is effective only after the user priority parameter Ub delivered by the destination cell or the user priority parameter Ua delivered by the source cell passes the lifetime, that is, the user priority parameter Ub delivered by the destination cell or the source cell is delivered.
  • the target cell public priority B is used for cell reselection; if not received If the public priority parameter B delivered by the target cell does not exist, and the user priority parameter Ub delivered by the source cell or the user priority parameter Ua delivered by the source cell does not exist, the existing cell reselection mechanism may be used to perform the cell. Reselect the operation.
  • the terminal I enters the destination in the terminal.
  • the public priority parameter B sent by the target cell carried in the system broadcast information is obtained, and the parameter is selected as the priority cell reselection, and if the target cell related to the user is also obtained from the dedicated signaling,
  • the user priority parameter Ub is used as a parameter applied in the priority-based cell reselection process by using the user priority parameter Ub delivered by the target cell during the lifetime of the user priority parameter Ub delivered by the target cell.
  • the corresponding cell reselection process is as shown in FIG. 2, and specifically includes:
  • Step 201 the terminal obtains the public priority parameter A delivered by the source cell in the source cell, and retains the public priority parameter A delivered by the source cell after entering the target cell;
  • Step 202 Determine whether the priority parameter (including the user priority parameter and the public priority parameter delivered by the target cell) delivered by the target cell is received. If yes, go to step 204. Otherwise, go to step
  • Step 203 Perform cell reselection using the public priority parameter A delivered by the source cell before receiving the priority parameter delivered by the target cell.
  • step 204 to step 209 is similar to the processing procedure described in step 104 to step 109 in the first embodiment, and thus the description will not be repeated here.
  • the cell priority re-selection is performed by using the user priority parameter Ua delivered by the source cell, and the user delivered by the source cell is preferentially selected. If the level parameter Ua is also invalid, the common priority parameter B delivered by the destination cell is used for cell reselection. If there is no public priority parameter B delivered by the destination cell, the public priority parameter A delivered by the source cell is used. Perform cell reselection.
  • the sequence of the corresponding processing steps in the first embodiment and the second embodiment does not constitute the only limitation of the implementation provided by the embodiment of the present invention, that is, the embodiment of the present invention may also use other sequences. Process steps to achieve the same purpose.
  • the embodiment of the present invention further provides a cell reselection device, and the specific implementation structure is as shown in FIG. 3, and may include:
  • the source cell parameter obtaining unit 301 is configured to obtain a user priority parameter that is sent by the source cell, and may also be used to obtain a public priority parameter that is sent by the source cell.
  • the first cell reselection unit 302 is configured to: after the terminal camps on the target cell, before acquiring the user priority parameter sent by the target cell, according to the source cell received by the source cell parameter acquiring unit 301 The user priority parameter is sent for cell reselection.
  • the apparatus further includes a target cell parameter obtaining unit 303, configured to acquire at least one of a user priority parameter and a public priority parameter delivered by the target cell;
  • the device can also include:
  • the first determining unit 304 is configured to determine whether the target cell parameter obtaining unit 301 receives the user priority parameter delivered by the target cell. Further, if the user priority parameter delivered by the target cell is valid and invalid, The first determining unit 304 is further configured to determine whether the user priority parameter sent by the target cell currently received by the target cell parameter acquiring unit is valid.
  • the second cell reselecting unit 305 is configured to: after the first determining unit 304 determines the user priority parameter that is sent by the target cell, perform cell reselection according to the user priority parameter delivered by the target cell. Further, if the user priority parameter of the target cell is valid and invalid, the second cell reselecting unit 305 further determines that the user priority parameter delivered by the target cell is valid, according to the target cell. Sending user priority parameters for cell reselection;
  • the second determining unit 306 is configured to determine, by the first determining unit 304, that the user priority parameter that is delivered by the target cell is not received, and determine whether there is a user priority parameter delivered by the valid source cell.
  • the third cell reselecting unit 307 is configured to notify the first cell reselecting unit 302 when the second determining unit 306 determines that there is a user priority parameter delivered by the valid source cell, otherwise, according to The public priority parameter delivered by the target cell received by the target cell parameter acquiring unit 303 performs cell reselection.
  • the apparatus may further include:
  • the third determining unit 308 is configured to determine, in the second determining unit 306, that the user priority parameter that is sent by the target cell is not received by the target cell parameter acquiring unit 303, and that there is no user priority delivered by the active source cell. In the case of the level parameter, it is further determined whether it receives the public priority parameter delivered by the target cell. Number
  • the fourth cell reselecting unit 309 is configured to determine, by the third determining unit 308, that the target cell parameter acquiring unit 303 does not receive the public priority parameter delivered by the target cell, and the second determining unit 306 determines There is no valid user priority parameter ⁇ delivered by the source cell, the cell reselection is performed according to the predetermined cell reselection mechanism based on the priority parameter, or the cell reselection is performed according to the common priority parameter delivered by the source cell.
  • the device may also include at least one of the following units:
  • the public priority parameter management unit 310 is configured to: after the terminal enters the target cell, delete the public priority parameter delivered by the source cell; or retain the public priority parameter delivered by the source cell, and only receive at the terminal And deleting at least one of a public priority parameter or a user priority parameter that is sent by the target cell, and deleting the public priority parameter delivered by the source cell.
  • the user priority parameter management unit 311 is configured to: when the user priority parameter sent by the source cell of the terminal is invalid, delete the user priority parameter sent by the source cell; or, in the terminal receiving the priority parameter, User priority parameter ⁇ delivered by the destination cell, deleting the user priority parameter delivered by the source cell
  • the foregoing cell reselection device may be specifically but not limited to being disposed in the terminal.
  • the cell reselection based on the priority cell reselection mechanism may be used, and the appropriate priority parameter may be selected for the cell reselection process.
  • a priority parameter or a priority parameter, etc. so that the user (terminal) can reside in the desired cell as much as possible to carry out the corresponding service, for example, can enable the user to reside as much as possible to match the user's business habits. In the small area, and so on.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé et appareil de resélection de cellule comprenant : une fois qu’un terminal réside dans une cellule cible, l’exécution de la resélection de cellule sur la base des paramètres de priorité de l’utilisateur qui sont envoyés au terminal par la cellule source avant l’obtention des paramètres de priorité de l’utilisateur distribués par la cellule cible. Parce que le mode de réalisation de la présente invention utilise l’exécution de la resélection de cellule prioritaire sur la base des paramètres de priorité de l’utilisateur distribués par la cellule source avant l’obtention des paramètres de priorité de l’utilisateur distribués par la cellule cible, la procédure de resélection de cellule prioritaire correspondante peut choisir des paramètres de priorité plus appropriés de manière précise et, en outre, la procédure de resélection de cellule prioritaire correspondante peut choisir la cellule de résidence souhaitée pour l’utilisateur.
PCT/CN2009/071647 2008-05-12 2009-05-05 Procédé et appareil de resélection de cellule WO2009138014A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0912543-4A BRPI0912543B1 (pt) 2008-05-12 2009-05-05 método e dispositivo para resselecionar uma célula

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810106368.0 2008-05-12
CN2008101063680A CN101583167B (zh) 2008-05-12 2008-05-12 小区重选的方法及装置

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Publication Number Publication Date
WO2009138014A1 true WO2009138014A1 (fr) 2009-11-19

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BR (1) BRPI0912543B1 (fr)
WO (1) WO2009138014A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN102625393A (zh) * 2008-05-12 2012-08-01 华为技术有限公司 小区重选的方法、装置及终端
CN102421156B (zh) * 2011-08-05 2015-07-08 展讯通信（上海）有限公司 多卡多待移动终端及其通信方法

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CN1675957A (zh) * 2002-08-21 2005-09-28 摩托罗拉公司 通过以频段优选参数补偿切换参数值在不同频段间进行资源利用
WO2006065019A2 (fr) * 2004-12-17 2006-06-22 Electronics And Telecommunications Research Institute Procede de commande de service de trafic de transfert intercellulaire dans un environnement multicellulaire et appareil de commande correspondant
CN1852559A (zh) * 2005-07-07 2006-10-25 华为技术有限公司 一种基于用户优先级的小区重选方法
US20070015509A1 (en) * 2005-07-12 2007-01-18 Futurewei Technologies, Inc. Method and system for mobile station handovers with different priorities in wireless networks

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Publication number Priority date Publication date Assignee Title
CN100399858C (zh) * 2004-09-02 2008-07-02 大唐移动通信设备有限公司 Tdd/cdma系统中的切换目标小区选择方法
CN100499921C (zh) * 2007-01-19 2009-06-10 重庆重邮信科通信技术有限公司 一种缩短用户终端从连接模式返回空闲模式时延的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040180659A1 (en) * 2001-06-19 2004-09-16 Salvador Pedraza Method and system for load sharing between a plurality of cells in a radio network system
CN1675957A (zh) * 2002-08-21 2005-09-28 摩托罗拉公司 通过以频段优选参数补偿切换参数值在不同频段间进行资源利用
WO2006065019A2 (fr) * 2004-12-17 2006-06-22 Electronics And Telecommunications Research Institute Procede de commande de service de trafic de transfert intercellulaire dans un environnement multicellulaire et appareil de commande correspondant
CN1852559A (zh) * 2005-07-07 2006-10-25 华为技术有限公司 一种基于用户优先级的小区重选方法
US20070015509A1 (en) * 2005-07-12 2007-01-18 Futurewei Technologies, Inc. Method and system for mobile station handovers with different priorities in wireless networks

Also Published As

Publication number Publication date
BRPI0912543B1 (pt) 2020-10-27
BRPI0912543A2 (pt) 2015-10-13
CN101583167B (zh) 2012-02-29
CN101583167A (zh) 2009-11-18

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