WO2014169762A1 - Procédé de resélection de cellule et terminal lte - Google Patents

Procédé de resélection de cellule et terminal lte Download PDF

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Publication number
WO2014169762A1
WO2014169762A1 PCT/CN2014/074684 CN2014074684W WO2014169762A1 WO 2014169762 A1 WO2014169762 A1 WO 2014169762A1 CN 2014074684 W CN2014074684 W CN 2014074684W WO 2014169762 A1 WO2014169762 A1 WO 2014169762A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
neighboring cells
mobile terminal
capabilities
reselection
Prior art date
Application number
PCT/CN2014/074684
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English (en)
Chinese (zh)
Inventor
庄莉
相海涛
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 WO2014169762A1 publication Critical patent/WO2014169762A1/fr

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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

Definitions

  • the present invention relates to the field of Long Term Evolution (LTE) technology, and more particularly to a cell reselection method and an LTE terminal.
  • LTE Long Term Evolution
  • the Evolved Universal Terrestrial Radio Access Network is an evolved access network of the Universal Terrestrial Radio Access Network (UTRAN), and its adopted technology is called Long Term Evolution (LTE) technology.
  • LTE Long Term Evolution
  • UE User Equipment
  • cell reselection is required.
  • the related cell reselection method includes: determining the reselection parameter of the neighboring cell according to the measured signal quality by measuring the signal quality of the neighboring cell, and reselecting from the measured neighboring cell to be higher than the current macro cell according to the set reselection parameter. Community.
  • the related cell reselection method only the level of the cell level is considered, but the cell with a high level does not necessarily meet the actual needs of the mobile terminal. In this case, the reselection is necessary, and therefore, the related priority-based cell reselection method. Less efficient. Summary of the invention
  • the present invention proposes a cell reselection method and an LTE terminal, which can improve the efficiency of cell reselection.
  • the present invention provides a cell reselection method, including: acquiring the capability of the mobile terminal; initiating a reselection request for the current cell, and initiating measurement to the neighboring cell of the current cell;
  • the determining, by the mobile terminal, that the capability of the mobile terminal is voice-centric; the cell reselection includes: Perform cell reselection according to delay, jitter, packet loss rate, and echo of the neighboring cell of the current cell.
  • the performing cell reselection according to the delay, jitter, packet loss rate, and echo of the neighboring cell of the current cell includes:
  • each neighboring cell is calculated;
  • the calculated calculation results are sorted, and the cell with the smallest calculation result is selected as the reselected cell.
  • the determining that the capability of the mobile terminal is data-centric; the reselecting the cell includes: determining, according to the measurement information of the neighboring cell, whether the access system of the neighboring cell is the same;
  • the cells of the wireless network in which the neighboring cell is located are sorted, and the cell with the strongest capability of the wireless network is selected as the reselected cell.
  • the method further includes: determining, according to the measurement information of the neighboring cell, whether the capability of the neighboring cell is the same;
  • the cells with the strongest preference are sorted according to the capabilities of the neighboring cells.
  • the method further includes: sorting according to the signal strength of the neighboring cells of the current cell, and selecting the cell with the strongest signal as the reselected cell.
  • the embodiment of the present invention further provides an LTE terminal, which includes an acquiring module configured to acquire the capability of the mobile terminal, a measurement module configured to initiate a reselection request to the current cell, and initiate measurement on the neighboring cell of the current cell, where It is characterized by:
  • the judging module is configured to: determine whether the acquired capability of the mobile terminal is data-centric or voice-centric, and output the judgment result to the execution module;
  • the execution module is configured to: perform cell reselection according to the capability of the mobile terminal and the measurement information of the neighboring cell.
  • the determining result output by the determining module is that the mobile terminal is centered on the voice; the executing module is configured to: perform the neighboring according to the delay, the jitter, the packet loss rate, and the echo of the neighboring cell of the current cell. Cell reselection.
  • the determining result output by the determining module is that the mobile terminal is centered on data; the determining module is further configured to determine whether the access system of the neighboring cell of the current cell is the same, and output the determination result to the execution.
  • the execution module is further configured to: receive the judgment result from the judging module, and when the judgment result is that the access systems of the neighboring cells are different, perform the sorting according to the capabilities of the wireless network where the neighboring cell of the current cell is located, and preferentially select the wireless The most capable cell of the network is the reselected cell.
  • the determining module is further configured to: determine, if the access systems of the neighboring cells are the same, determine whether the capabilities of the neighboring cells of the current cell are the same, and output the determination result to the execution module;
  • the method is configured to: receive the judgment result from the judging module, and when the judgment result is that the capabilities of the neighboring cells are different, perform the sorting according to the capabilities of the neighboring cells of the current cell, and the cell with the strongest preference is the reselected cell.
  • the execution module is further configured to: receive the judgment result from the judging module, and when the judgment result is that the neighboring cells have the same capability, sort according to the signal strength of the neighboring cell of the current cell, and the priority selection signal is the strongest.
  • the cell is a reselected cell.
  • the capability of the mobile terminal is divided into data-centric and voice-centric, and the cell is re-selected according to the capability of the mobile terminal, and the mobile terminal is provided with a better quality service according to the actual needs of the mobile terminal. , thereby reducing the number of repeated initiation of cell reselection, and improving the efficiency of cell reselection.
  • FIG. 1 is a flowchart of a cell reselection method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an embodiment of a cell reselection method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a structure of an LTE terminal according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a cell reselection method according to an embodiment of the present invention. As shown in FIG. 1, the method in the embodiment of the present invention includes:
  • Step 100 Acquire a capability of the mobile terminal.
  • Step 101 Initiate a reselection request for the current cell, and initiate a measurement to the neighboring cell of the current cell.
  • Step 102 Determine whether the acquired mobile terminal is centered on data or voice;
  • Step 103 Perform cell reselection according to the capability of the mobile terminal and the measurement result of the neighboring cell. The specific implementation is as described in step 205 210 below.
  • FIG. 2 is a flowchart of an embodiment of a cell reselection method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 The mobile terminal starts up, reads configuration information of the terminal capability in the non-volatile memory (NV, Nonvolatile Memory), and acquires the capability of the current terminal;
  • NV non-volatile memory
  • Step 202 The mobile terminal performs normal network registration, and the public land mobile network (PLMN, Public).
  • PLMN public land mobile network
  • Land Mobile Network Select, Cell Select, Location Update, Route Update Operation, Get Normal Network Service.
  • Step 203 When the network service quality of the current cell is poor, the mobile terminal initiates a cell reselection request to the current cell, and initiates measurement on the neighboring cell according to the measurement condition.
  • the mobile terminal has the function of detecting the network service quality of the current cell in real time.
  • the mobile terminal automatically initiates a reselection request for the current cell. And the measurement is initiated on the neighboring cell according to the measurement condition, and then the current cell no longer serves the mobile terminal.
  • the specific implementation is a conventional means by those skilled in the art, and will not be described here.
  • Step 204 Determine the capability of the current terminal. If the capability of the current terminal is voice-centric, perform step 205, otherwise perform step 206.
  • the capabilities of mobile terminals are mainly divided into data-centric and voice-centric.
  • Data-centric refers to the mobile terminal's services are mainly data, such as mobile terminals are generally used for Internet access, and rarely used for making calls;
  • the mobile terminal's services are mainly voice, such as mobile terminals are generally used for Calling, and rarely used to go online.
  • the value of the mobile terminal is determined according to the configuration information of the mobile terminal.
  • the specific determination method is a conventional method of the person skilled in the art, and the specific implementation is not used to limit the protection scope of the embodiment of the present invention. Narration. For example, when the value of the mobile terminal capability is 0, it indicates that the capability of the mobile terminal is centered on voice, and when the value of the mobile terminal capability is 1, it indicates that the capability of the mobile terminal is data-centric.
  • Step 205 The capability of the current terminal is voice-centric, that is, the voice service is mainly, according to the measured measurement information of the neighboring cell, such as delay, jitter, packet loss rate, and echo, according to the formula: (delay)
  • the calculation result of X 0.4+ jitter X 0.1+ packet loss rate X 0.4 + echo 0.1 ) ranks the neighboring cells in order from small to large, and after sorting, the neighbor cells with the smallest calculation result are preferentially selected. Then the process ends.
  • the capability of the mobile terminal is centered on voice, and then the cell reselection is mainly considered in consideration of the parameters related to the voice service, and the parameters related to the data service need not be considered, so the reselected cell must be able to satisfy the mobile terminal.
  • the voice demand is not repeated for cell reselection, so the reselection efficiency is high.
  • Step 206 The current terminal capability is data-centric, that is, data interaction is dominant, and according to the measured measurement information, it is determined whether the access system of the neighboring cell is the same. If the same, the process proceeds to step 208, otherwise, step 207 is performed. .
  • the access system of the neighboring cell refers to whether the network where the neighboring cell is located is 2G, 3G or 4G.
  • the specific method of the present invention is not intended to limit the scope of protection of the present invention, and details are not described herein.
  • Step 207 Sort the cells according to the capabilities of the wireless network where the neighboring cell is located, and the order is 4G, 3G, and then 2G. That is, 4G is preferred, followed by 3G, and finally 2G. Then end this process.
  • Step 208 Determine, according to the measured measurement information, whether the measured neighboring cells have the same capability, if yes, perform step 209, otherwise perform step 210;
  • Step 209 Sort the neighboring cells according to the signal strength of the neighboring cell, and select the cell with the strongest signal as the reselected cell; and then end the process.
  • the FDD or TDD cell can be sorted according to chip energy/interference power density (Ec/Io) or received signal code power (RSCP, Received Signal Code Power), and the Ec/Io or RSCP is the largest.
  • Ec/Io chip energy/interference power density
  • RSCP received signal code power
  • the Ec/Io or RSCP is the largest.
  • the cell may be sorted according to the Received Signal Strength Indication (RSSI), and the cell with the largest RSSI is preferentially selected; for the LTE cell, the reference signal receiving power (RSRP, Reference Signal Receiving Power) or the reference signal is used.
  • Receive quality (RSRQ, Reference Signal Receiving Quality) is sorted to preferentially select the cell with the largest RSRP or RSRQ.
  • the specific method of the present invention is not limited to the scope of protection of the embodiments of the present invention, and details are not described herein again.
  • Step 210 When the capabilities of the neighboring cells are different, the resources are sorted according to the capabilities of the neighboring cells; the cell with the strongest selection capability is the reselected cell;
  • the DC-HSPA+ cell capability is stronger than the HSPA+ cell
  • the HSPA+ cell capability is stronger than the HSDPA
  • the HSDPA cell capability is stronger than the UMTS cell
  • the EDGE-enabled cell performance is better than the GPRS cell
  • the GPRS-capable cell capability is supported.
  • a cell that supports GSM Better than a cell that supports GSM.
  • the capability of the mobile terminal is data-centric, and then the cell reselection is mainly considered in consideration of parameters related to the data service, and the parameters related to the voice service need not be considered, so the reselected cell must be able to satisfy the mobile.
  • the data demand of the terminal does not occur in the case of cell reselection again, so the reselection efficiency is high.
  • the method includes: acquiring an acquisition capability of a mobile terminal, initiating a reselection request for a current cell, and performing measurement measurement on a neighboring cell of the current cell.
  • the module also includes:
  • the judging module is configured to: determine whether the acquired capability of the mobile terminal is data-centric or voice-centric, and output the judgment result to the execution module;
  • the execution module is configured to: perform cell reselection according to the capability of the mobile terminal and the measurement information of the neighboring cell.
  • the execution module is configured to: perform neighbor cell reselection according to delay, jitter, packet loss rate, and echo of the neighboring cell of the current cell.
  • the determining module is further configured to: determine whether the access system of the neighboring cell of the current cell is the same, and output the determination result to the execution module;
  • the execution module is further configured to: sort according to the capability of the wireless network where the neighboring cell of the current cell is located, and select the cell with the strongest capability of the wireless network as the reselected cell.
  • the determining module is further configured to: determine whether the capabilities of the neighboring cells of the current cell are the same, and output the determination result to the execution module;
  • the execution module is further configured to: sort according to the capability of the neighboring cell of the current cell, and select the cell with the strongest capability as the reselected cell;
  • the execution module is further configured to: sort according to the signal strength of the neighboring cell of the current cell, and select the cell with the strongest signal as the reselected cell.
  • the capability of the mobile terminal is divided into data-centric and voice-centric, and the cell is re-selected according to the capability of the mobile terminal, and the mobile terminal is provided with better quality according to the actual needs of the mobile terminal.
  • the service reduces the number of repeated cell reselections and improves the efficiency of cell reselection.
  • the capability of the mobile terminal is divided into data-centric and voice-centric, and the cell is re-selected according to the capability of the mobile terminal, and the mobile terminal is provided with a better quality service according to the actual needs of the mobile terminal. , thereby reducing the number of repeated initiation of cell reselection, and improving the efficiency of cell reselection.

Abstract

Un mode de réalisation de la présente invention porte sur un procédé de resélection de cellule, consistant à : obtenir la capacité d'un terminal mobile ; lancer une requête de resélection auprès d'une cellule courante, et lancer une mesure d'une cellule voisine de la cellule courante, le procédé consistant en outre à : déterminer si la capacité obtenue du terminal mobile est centrée sur les données ou centrée sur la voix ; et effectuer une resélection de cellule en fonction de la capacité du terminal mobile et des informations de mesure de la cellule voisine. Un terminal LTE correspondant au procédé est également décrit. Le mode de réalisation de la présente invention classifie les capacités d'un terminal mobile en capacité centrée sur les données et capacité centrée sur la voix, effectue une resélection de cellule en fonction de la capacité du terminal mobile, et offre un service de haute qualité pour le terminal mobile selon ses besoins réels, réduisant ainsi le nombre de resélections de cellule répétées, et augmente l'efficacité de resélection de cellule.
PCT/CN2014/074684 2013-09-16 2014-04-03 Procédé de resélection de cellule et terminal lte WO2014169762A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310421849.1 2013-09-16
CN201310421849.1A CN104469870B (zh) 2013-09-16 2013-09-16 一种小区重选方法和lte终端

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CN106255181A (zh) * 2015-06-10 2016-12-21 中兴通讯股份有限公司 一种多无线接入技术中用户设备的接入方法和用户设备
CN107241773A (zh) * 2016-03-28 2017-10-10 中兴通讯股份有限公司 一种小区切换的方法、装置及基站设备
CN109963312A (zh) * 2017-12-26 2019-07-02 飞狐信息技术（天津）有限公司 一种网络切换方法、系统、网络转换设备及存储介质
WO2020155967A1 (fr) * 2019-02-01 2020-08-06 电信科学技术研究院有限公司 Procédé de sélection de cellule, procédé d'envoi de message de diffusion, terminal et dispositif de réseau
CN114339904A (zh) * 2020-09-30 2022-04-12 北京小米移动软件有限公司 小区切换方法、小区切换装置及存储介质

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CN1549650A (zh) * 2003-05-19 2004-11-24 华为技术有限公司 一种用户终端建立业务连接的方法
CN101335990A (zh) * 2007-06-27 2008-12-31 中兴通讯股份有限公司 一种移动终端开展业务的方法
CN102083160A (zh) * 2009-11-30 2011-06-01 中国移动通信集团北京有限公司 一种根据小区业务特征进行小区重选的方法、终端及网元
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