WO2013007077A1 - 终端进行模式内切换的方法及终端 - Google Patents

终端进行模式内切换的方法及终端 Download PDF

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Publication number
WO2013007077A1
WO2013007077A1 PCT/CN2011/082927 CN2011082927W WO2013007077A1 WO 2013007077 A1 WO2013007077 A1 WO 2013007077A1 CN 2011082927 W CN2011082927 W CN 2011082927W WO 2013007077 A1 WO2013007077 A1 WO 2013007077A1
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Prior art keywords
mode
frequency band
terminal
frequency
band
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PCT/CN2011/082927
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English (en)
French (fr)
Inventor
易荣贵
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中兴通讯股份有限公司
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Publication of WO2013007077A1 publication Critical patent/WO2013007077A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • H04W36/144Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443Reselecting a network or an air interface over a different radio air interface technology between licensed networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to communication technologies, and in particular, to a method and a terminal for performing intra-mode handover of a terminal.
  • the current mobile communication systems exist in a variety of modes, including Global System For Mobile Communications (GSM), General Packet Radio Service (GPRS), and Enhanced Data Rate GSM Evolution (Enhanced Data Rate for GSM Evolution, EDGE), second-generation mobile communication system technology represented by Code Division Multiple Access (CDMA), and Time Division-Synchronous Code Division Multiple Access Third-generation mobile communication system technology represented by TD SCDMA (TD) and Wideband Code Division Multiple Access (WCDMA).
  • GSM Global System For Mobile Communications
  • GPRS General Packet Radio Service
  • EDGE Enhanced Data Rate GSM Evolution
  • CDMA Code Division Multiple Access
  • TD SCDMA Time Division-Synchronous Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • the third-generation mobile communication system technology has the advantages of advanced technology, strong data service capability, and large user capacity, but the shortcomings are also obvious, the coverage is incomplete and the tariff is relatively high; and the second-generation mobile communication system technology has commercial maturity.
  • network coverage is comprehensive, call quality is high, but
  • the terminal can meet various application requirements of the user, for example, performing high-speed data services under a 3G network, and performing ordinary voice calls under the GSM network; on the other hand, the user only needs to carry one terminal to implement two The function of the terminal.
  • the frequency bands used by 2G systems are 900MHz and 1800MHz, referred to as GSM900 and DCS1800.
  • the 3G system may include a, b, c, d, e, f, 5 frequency bands.
  • the frequency band distribution of GSM and TD modes is shown in Figure 1.
  • the a-band and f-band are generally supported in the TD-SCDMA mode.
  • the following will be exemplified by the GSM mode and the TD-SCDMA mode.
  • dual-mode dual-standby terminals supporting both GSM and TD modes perform services simultaneously, since the two RF antennas of the terminal work simultaneously, if the frequency of operation If the rates are close, they will interfere with each other.
  • the f-band of DSC1800 and TD it seems that the mode bands do not overlap from the operating band, and there should be no interference.
  • GSM makes a voice call on the DSC1800, and the TD performs high-speed download in the a ⁇ e frequency band.
  • the network side requires the UE to switch to the f-band operation on the TD network side;
  • GSM makes voice calls in GSM900
  • TD works in the f-band for high-speed download
  • the network side requires the UE to switch to the DSC1800 in the GSM network.
  • the present invention provides a method and terminal for performing intra-mode handover of a terminal to solve the radio frequency interference problem caused by the terminal switching in the mode.
  • the present invention provides a method for intra-mode handover of a terminal, where the terminal supports a first mode and a second mode, and a first frequency band of the first mode and a second frequency band of the second mode are mutually Interference frequency band, the method includes:
  • the terminal performs a service at a frequency point in the first frequency band of the first mode, and determines an isolated frequency band of the first mode according to the frequency point;
  • the isolated frequency band of the first mode may be a frequency band in which the second frequency band of the second mode generates interference with the first frequency band of the first mode that is greater than a predetermined threshold.
  • the method of the present invention may further include: after the step of determining, by the terminal, the isolated frequency band of the first mode according to the frequency point, the terminal transmitting, to the network side, an isolated frequency band using the first mode Filtered measurement results.
  • the first mode may be a time division synchronous code division multiple access (TD) mode
  • the first frequency band of the first mode may be an f frequency band
  • the second mode may be a global mobile communication In the system (GSM) mode
  • the second frequency band of the second mode may be the Digital Cellular System (DCS) 1800 band.
  • TD time division synchronous code division multiple access
  • GSM global mobile communication In the system
  • DCS Digital Cellular System
  • the first mode may also be a GSM mode, and the first frequency band of the first mode may also be a DCS1800 frequency band; the second mode may also be a TD mode, where the second mode is The second frequency band can also be an f-band.
  • the present invention further provides a terminal, where the terminal supports the first mode and the second mode, and the first frequency band of the first mode and the second frequency band of the second mode are mutually interference frequency bands
  • the terminal includes: a determining module, configured to perform a service at a frequency point in a first frequency band of the first mode, determine an isolated frequency band of the first mode according to the frequency point; and a processing module configured to receive the network side Transmitting a handover request in a second mode carrying a target frequency point, where the target frequency point is located in a second frequency band of the second mode, determining whether the target frequency point is in an isolated frequency band of the first mode, If yes, the network side is refusal to switch, and if not, the second mode is switched according to the switching request.
  • the isolated frequency band of the first mode is a frequency band in which the second frequency band of the second mode generates interference with the first frequency band of the first mode that is greater than a predetermined threshold.
  • the terminal of the present invention may further include: a sending module, configured to send, after the determining module determines the isolated frequency band of the first mode, the measurement result filtered by using the isolation mode of the first mode to the network side.
  • the first mode may be a time division synchronous code division multiple access (TD) mode
  • the first frequency band of the first mode may be an f frequency band
  • the second mode may be a global mobile communication In the system (GSM) mode
  • the second frequency band of the second mode may be the Digital Cellular System (DCS) 1800 band.
  • GSM global mobile communication In the system
  • DCS Digital Cellular System
  • the first mode may also be a GSM mode, where the first mode is One frequency band may also be a DCS1800 frequency band; the second mode may also be a TD mode, and the second frequency band of the second mode may also be an f-band.
  • the method and the terminal for performing intra-mode handover of the terminal of the present invention can better reduce radio frequency interference caused by the terminal after performing intra-mode handover.
  • Figure 1 is a schematic diagram showing the frequency band distribution of the GSM mode and the TD mode
  • FIG. 2 is a schematic diagram of a collision between a GSM mode and a TD mode at 1800 MHz;
  • FIG. 3 is a flowchart of a method for performing intra-mode handover of a terminal according to an embodiment of the present invention;
  • FIG. 4 is a schematic diagram of updating an isolated frequency band range according to an embodiment of the present invention;
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for performing mode switching in a terminal, where the terminal supports a first mode and a second mode, and a first frequency band of the first mode and a second frequency band of the second mode Inter-interference frequency bands, the method includes:
  • Step 1 The terminal performs a service at a frequency point in the first frequency band of the first mode, and determines an isolated frequency band of the first mode according to the frequency point; where the isolated frequency band of the first mode is The frequency band generated by the second frequency band of the second mode is greater than the predetermined threshold in the first frequency band of the first mode, that is, the frequency band in which the second frequency band of the second mode is seriously interfered with the first frequency band of the first mode;
  • the terminal makes a voice call in the GSM mode, and its working frequency is FGSM, and the download service is performed in the TD mode. If the working frequency of the TD mode is in [FGSM, FGSM-Sc], unacceptable interference will occur, and this is The interval is called "GSM isolation band", and FGSM-Se is called the lower boundary of the TD mode operating frequency point under FGSM.
  • the UE can only be in the TD mode larger than FGSM-Sept.
  • the frequency point can work normally; among them, FGSM-Sept is a function of FGSM;
  • the terminal does the download service in the TD mode, and its working frequency is FTD, and the voice call is made in the GSM mode.
  • FTD the GSM mode working frequency
  • FTD_Sep the GSM mode working frequency
  • This interval is called "TD isolation band”
  • FTD-Shen the upper boundary of the GSM mode operating frequency point.
  • the UE can only work at a frequency less than FTD-Sept; where FTD Se is a function of FTD;
  • Step 2 The terminal receives a handover request in a second mode that is sent by the network side and carries a target frequency point.
  • the target frequency point is located in the second frequency band of the second mode, determining whether the target frequency point is In the isolated frequency band of the first mode, if yes, the network side is refused to switch, and if not, the switching in the second mode is completed according to the switching request.
  • the terminals mentioned in the embodiments of the present invention are all dual-mode dual-standby terminals; wherein, the first mode is a time division synchronous code division multiple access (TD) mode, and the first mode is One frequency band is an f-band; the second mode is a Global System for Mobile Communications (GSM) mode, and the second frequency band of the second mode is a digital cellular system (DCS) 1800 frequency band; or the first mode is a GSM mode, The first frequency band of the first mode is a DCS1800 frequency band; the second mode is a TD mode, and the second frequency band of the second mode is an f frequency band.
  • TD time division synchronous code division multiple access
  • GSM Global System for Mobile Communications
  • DCS digital cellular system
  • the terminal may further include: the terminal transmitting, to the network side, a measurement result filtered by using the isolation mode of the first mode; The cell in the isolated mode of the first mode is filtered out, and only the filtered cell is reported to the network side; the strategy for switching using the isolated frequency band is:
  • the TD mode uses the "GSM isolation band” to filter out the frequency of interference with the "GSM isolation band” in the measurement report on the network side; the GSM mode uses the "TD isolation band” in the measurement report on the network side to filter out the frequency of interference;
  • the handover request sent by the side if the frequency of the target cell is in the "isolated frequency band", the network side directly returns the handover rejection, otherwise the handover is performed according to the handover request.
  • FIG. 3 it is a flowchart of a method for performing intra-mode switching in a terminal according to an embodiment of the present invention.
  • the method includes:
  • Step 301 When the UE performs a service in a certain mode, determine FSe according to the current working frequency F, such as FGSM Sep or FTD Sep;
  • Step 303 Update F and FSep when starting service in another mode.
  • Step 304 When reporting the measurement report, the UE filters the measurement result in the “isolated frequency band”, which can reduce the probability that the designated UE on the network side switches to the frequency point in the “isolated frequency band”;
  • Step 305 When receiving the handover request in the mode sent by the network side, the UE determines whether the frequency of the cell is in the “isolated frequency band”; if not, then proceeds to step 306; if yes, step 307 is performed;
  • Step 306 Perform a handover process, and after the handover succeeds, update the “isolation band” of the mode, and the process ends;
  • the isolated frequency band in the current mode is determined according to the current working frequency.
  • the update process is as shown in FIG. 4, for example, switching occurs in the GSM mode, and transitions from state 1 to state 2, GSM isolation.
  • the frequency band changes; the switching occurs in the TD mode, and the state 2 transitions to the state 3, and the isolated frequency band of the TD also changes; that is, as long as the operating frequency of the interference band changes in the current mode, the isolated frequency band also changes. Therefore, the current mode isolation frequency band needs to be updated according to the changed working frequency point; the purpose of updating the current mode isolation frequency band is to receive the target frequency transmitted by the network side when the terminal works in the interference mode of the current mode.
  • the switching request in another mode of the point when the target frequency point is located in the interference frequency band of the other mode, determining whether the target frequency point is in the isolation frequency band of the current mode, and if yes, replying to the network side to reject the switching If not, completing the switching in another mode according to the switching request;
  • Step 307 If the network side switches to a cell in an "isolation band" in a blind cut mode, the network side directly fails to reply, and the process ends.
  • the above terminal handover method can meet the radio interference requirements of the handover only by making corresponding modifications in the UE terminal; and the method is pure software implementation, and there is no requirement for hardware; in addition, the method can be easily extended to the mode. Reselection, that is, the terminal itself finds a cell with better signal in the current mode, and determines whether the frequency of the cell is in the isolated frequency band of another frequency band, if not, Then you can complete the switch within the current mode.
  • FIG. 5 it is a schematic structural diagram of a terminal according to an embodiment of the present invention, where the terminal supports a first mode and a second mode, and a first frequency band of the first mode and a second mode of the second mode
  • the frequency bands are mutually interference frequency bands
  • the terminal includes a determining module 51 and a processing module 52, where:
  • a determining module 51 configured to determine, according to the frequency point, an isolation frequency band of the first mode when the UE performs a service in a frequency point in the first frequency band of the first mode; and the processing module 52 is configured to receive And determining, by the network side, a handover request in a second mode that carries a target frequency point, where the target frequency point is located in the second frequency band of the second mode, determining whether the target frequency point is in the first mode In the isolated frequency band, if yes, the network side is refused to switch, and if not, the switching in the second mode is completed according to the switching request.
  • the terminal further includes: a sending module 53 configured to: after the determining module determines the isolated mode of the first mode, to the network The side transmits the measurement result filtered using the isolation band of the first mode.
  • the isolation band of the first mode is set to a frequency band in which the second frequency band of the second mode generates interference with the first frequency band of the first mode that is greater than a predetermined threshold.
  • the first mode is a time division synchronous code division multiple access (TD) mode, the first frequency band of the first mode is an f frequency band, and the second mode is a global mobile communication system (GSM) mode, where the The second frequency band of the second mode is a digital cellular system (DCS) 1800 frequency band; or the first mode is a GSM mode, the first frequency band of the first mode is a DCS1800 frequency band, and the second mode is a TD mode, The second frequency band of the second mode is the f frequency band.
  • TD time division synchronous code division multiple access
  • GSM global mobile communication system
  • the terminal When the terminal is switched in the completion mode, the terminal can better reduce the radio frequency interference according to the performance of the UE chip.
  • the method and terminal for performing intra-mode handover by the terminal according to the embodiment of the present invention can better reduce radio frequency interference caused by the terminal after performing intra-mode handover.

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

Abstract

本发明提供了一种终端进行模式内切换的方法和终端,所述终端支持第一模式和第二模式,且所述第一模式中的第一频段和所述第二模式中的第二频段互为干扰频段,所述方法包括:所述终端在所述第一模式的第一频段中的频点进行业务,根据所述频点确定所述第一模式的隔离频段;所述终端接收到网络侧发送的携带有目标频点的第二模式内的切换请求,所述目标频点位于所述第二模式的第二频段,判断所述目标频点是否在所述第一模式的隔离频段内,若是,则向网络侧回复拒绝切换,若不是,则根据所述切换请求完成第二模式内的切换。上述终端进行模式内切换的方法和终端,可以较好地减少终端在进行模式内切换后引起的射频干扰。

Description

终端进行模式内切换的方法及终端
技术领域
本发明涉及通信技术,尤其涉及一种终端进行模式内切换的方法及终端。
背景技术
目前的移动通信系统存在多种模式, 包括以全球移动通讯系统(Global System For Mobile Communications, GSM )、通用分组无线月良务技术( General Packet Radio Service, GPRS )、增强型数据速率 GSM演进技术( Enhanced Data Rate for GSM Evolution, EDGE )、码分多址( Code Division Multiple Access, CDMA )为代表的第二代移动通信系统技术, 和以时分同步码分多址(Time Division- Synchronous Code Division Multiple Access, TD SCDMA, 简称 TD ) 和宽带码分多址(Wideband Code Division Multiple Access, WCDMA )为代 表的第三代移动通信系统技术。 相比较而言, 第三代移动通信系统技术具有 技术先进, 数据业务能力强, 用户容量大等优点, 但是缺点也很明显覆盖面 不全、 资费比较高; 而第二代移动通信系统技术具有商用成熟, 网络覆盖全 面, 通话质量高等优点, 但是不能满足用户的高速数据需求, 所以在相当长 的一段时间内, 将会出现 2G和 3G技术共存的局面。
基于上述的现实, 双模双待终端应运而生。 一方面, 该终端可以满足用 户的各种应用需求, 比如在 3G网络下进行高速的数据业务,在 GSM网络下 进行普通的语音通话; 另一方面, 用户只需要携带一个终端就可以实现两个 终端的功能。
在目前的中国, 2G 系统使用的频段是 900MHz 和 1800MHz, 简称为 GSM900和 DCS1800。 而 3G系统可能包括 a, b, c, d, e, f, 5个频段, GSM、 TD模式的频带分布如图 1所示。
目前在 TD— SCDMA模式下一般支持 a频段和 f频段。以下将以 GSM模 式和 TD— SCDMA模式为例进行阐述。当支持 GSM和 TD两种模式的双模双 待终端同时进行业务时, 由于终端的 2个射频天线同时工作, 如果工作的频 率比较接近的话, 将会相互产生干扰, 体现在 DSC1800和 TD的 f频段, 单 从工作频带上看似乎各模式频带并没有重叠, 应该不存在干扰。 但实际由于 手机尺寸限制、 手机接收滤波器的大小、 性能限制和发射机的带外辐射, 两 种模式同时工作时, 必然存在着互扰, 这样将会影响到业务的正常进行, 如 图 2所示。 在下面两种情况下, 很容易发生射频干扰:
1、 GSM在 DSC1800做语音通话, TD在 a~e频段做高速下载, 网络侧 要求 UE在 TD网络侧切换到 f频段工作;
2、 GSM在 GSM900做语音通话, TD工作在 f频段做高速下载, 网络侧 要求 UE在 GSM网络切换到 DSC1800。
发明内容 本发明提供了一种终端进行模式内切换的方法和终端, 以解决终端在进 行模式内切换后引起的射频干扰问题。
本发明提供了一种终端进行模式内切换的方法, 所述终端支持第一模式 和第二模式, 且所述第一模式中的第一频段和所述第二模式中的第二频段互 为干扰频段, 所述方法包括:
所述终端在所述第一模式的第一频段中的频点进行业务, 根据所述频点 确定所述第一模式的隔离频段;
所述终端接收到网络侧发送的携带有目标频点的第二模式内的切换请 求, 所述目标频点位于所述第二模式的第二频段时, 判断所述目标频点是否 在所述第一模式的隔离频段内, 若是, 则向网络侧回复拒绝切换, 若不是, 则根据所述切换请求完成第二模式内的切换。 本发明的方法中, 所述第一模式的隔离频段可为所述第二模式的第二频 段对所述第一模式的第一频段产生的干扰大于预定阔值的频段。 本发明的方法还可包括: 在所述终端根据所述频点确定所述第一模式的 隔离频段的步骤之后, 所述终端向网络侧发送使用所述第一模式的隔离频段 过滤后的测量结果。 本发明的方法中,所述第一模式可为时分同步码分多址接入( TD )模式, 所述第一模式的第一频段可为 f频段; 所述第二模式可为全球移动通讯系统 ( GSM )模式, 所述第二模式的第二频段可为数字蜂窝系统(DCS ) 1800频 段。 本发明的方法中, 所述第一模式还可为 GSM模式, 所述第一模式的第 一频段还可为 DCS1800频段; 所述第二模式还可为 TD模式, 所述第二模式 的第二频段还可为 f频段。 本发明还提供了一种终端, 所述终端支持第一模式和第二模式, 且所述 第一模式中的第一频段和所述第二模式中的第二频段互为干扰频段, 所述终 端包括: 确定模块, 设置为在所述第一模式的第一频段中的频点进行业务, 根据 所述频点确定所述第一模式的隔离频段; 以及 处理模块, 设置为接收到网络侧发送的携带有目标频点的第二模式内的 切换请求, 所述目标频点位于所述第二模式的第二频段, 判断所述目标频点 是否在所述第一模式的隔离频段内, 若是, 则向网络侧回复拒绝切换, 若不 是, 则根据所述切换请求完成第二模式内的切换。 本发明的终端中, 所述第一模式的隔离频段为所述第二模式的第二频段 对所述第一模式的第一频段产生的干扰大于预定阔值的频段。
本发明的终端还可包括: 发送模块, 设置为在所述确定模块确定所述第一模式的隔离频段之后, 向网络侧发送使用所述第一模式的隔离频段过滤后的测量结果。 本发明的终端中,所述第一模式可为时分同步码分多址接入( TD )模式, 所述第一模式的第一频段可为 f频段; 所述第二模式可为全球移动通讯系统 ( GSM )模式, 所述第二模式的第二频段可为数字蜂窝系统(DCS ) 1800频 段。 本发明的终端中, 所述第一模式还可为 GSM模式, 所述第一模式的第 一频段还可为 DCS1800频段; 所述第二模式还可为 TD模式, 所述第二模式 的第二频段还可为 f频段。 本发明的终端进行模式内切换的方法和终端, 可以较好地减少终端在进 行模式内切换后引起的射频干扰。
附图概述
图 1为 GSM模式和 TD模式的频带分布示意图;
图 2为 GSM模式和 TD模式在 1800MHz处的冲突示意图; 图 3为本发明实施方式的终端进行模式内切换方法的流程图; 图 4为本发明实施方式的更新隔离频段范围的示意图;
图 5为本发明实施方式的终端的结构示意图。
本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。 本发明实施例提供了一种终端进行模式内切换的方法, 所述终端支持第 一模式和第二模式, 且所述第一模式中的第一频段和所述第二模式中的第二 频段互为干扰频段, 所述方法包括:
步骤一、 所述终端在所述第一模式的第一频段中的频点进行业务, 根据 所述频点确定所述第一模式的隔离频段; 其中, 所述第一模式的隔离频段为所述第二模式的第二频段对所述第一 模式的第一频段产生的干扰大于预定阔值的频段, 即第二模式的第二频段对 第一模式的第一频段产生严重干扰的频段;
例如终端在 GSM模式做语音通话,其工作频点为 FGSM,在 TD模式做 下载业务, 如果 TD模式工作频点处于 [FGSM , FGSM— Sep]内时, 会产生不 可容忍的干扰, 则把这个区间称之为 "GSM隔离频段" , 而 FGSM— Sep称 为 FGSM下 TD模式工作频点下界, UE只能在大于 FGSM— Sep的 TD模式 频点才能正常工作; 其中, FGSM— Sep是 FGSM的函数;
同理, 例如终端在 TD模式做下载业务, 其工作频点为 FTD, 在 GSM 模式做语音通话, 如果 GSM模式工作频点处于 [FTD , FTD_Sep]内时, 会产 生不可容忍的干扰, 则把这个区间称之为 "TD隔离频段" , 而 FTD— Sep称 为 GSM模式工作频点上界, UE只能在小于 FTD— Sep的频点上工作; 其中, FTD Se 是 FTD的函数;
另外, 需要说明的是, 本领域的技术人员针对不同的终端芯片, 通过反 复试验, 可以获得上述第一模式和第二模式的隔离频段;
步骤二、 所述终端接收到网络侧发送的携带有目标频点的第二模式内的 切换请求, 所述目标频点位于所述第二模式的第二频段时, 判断所述目标频 点是否在所述第一模式的隔离频段内, 若是, 则向网络侧回复拒绝切换, 若 不是, 则根据所述切换请求完成第二模式内的切换。
需要说明的是, 本发明实施例中提到的终端均为双模双待终端; 其中, 所述第一模式为时分同步码分多址接入(TD )模式, 所述第一模 式的第一频段为 f频段; 所述第二模式为全球移动通讯系统(GSM )模式, 所述第二模式的第二频段为数字蜂窝系统(DCS ) 1800频段; 或者所述第一 模式为 GSM模式, 所述第一模式的第一频段为 DCS1800频段; 所述第二模 式为 TD模式, 所述第二模式的第二频段为 f频段。
所述终端在根据所述频点确定所述第一模式的隔离频段之后, 还可以包 括:所述终端向网络侧发送使用所述第一模式的隔离频段过滤后的测量结果; 即将测量到的位于第一模式的隔离频段内的小区过滤掉, 只向网络侧上报过 滤后的小区; 使用隔离频段进行切换的策略是:
TD模式给网络侧的测量报告中用 "GSM隔离频段" 过滤掉干扰较大的 频点; GSM模式给网络侧的测量报告中用 "TD隔离频段" 过滤掉干扰较大 的频点; 如果网络侧下发的切换请求中, 目标小区的频点在 "隔离频段" 内, 则直接给网络侧回复切换拒绝, 否则依照切换请求进行切换。
如图 3所示, 为本发明实施方式的终端进行模式内切换方法的流程图, 该方法包括:
步骤 301、 当 UE在某个模式下进行业务时, 根据当前工作频点 F确定 FSe 例如 FGSM Sep 或 FTD Sep;
步骤 302、 对没有做业务的另一个模式, 分别设 F =FSep=0;
步骤 303、 当在另一个模式也开始做业务时, 更新 F 和 FSep;
步骤 304、 UE在上报测量报告时, 过滤 "隔离频段" 内的测量结果, 这 样可以减少网络侧指定 UE切换到 "隔离频段" 中的频点的概率;
步骤 305、 UE收到网络侧发送的模式内的切换请求时, 判断该小区的频 点是否在 "隔离频段" 中; 如果不在, 则转向步骤 306; 如果在, 执行步骤 307;
步骤 306、 执行切换过程, 切换成功后, 更新该模式的 "隔离频段" , 过程结束;
当切换到一个新的小区时, 根据当前工作频点确定当前模式下的隔离频 段, 更新过程如图 4所示, 例如在 GSM模式内发生了切换, 由状态 1转变 到状态 2, GSM的隔离频段发生变化; 在 TD模式内发生了切换, 由状态 2 转变到状态 3 , TD的隔离频段也发生变化; 即只要当前模式下位于干扰频段 的工作频点发生变化, 其隔离频段也会发生变化, 因此, 需要根据发生变化 后的工作频点更新当前模式的隔离频段;更新当前模式的隔离频段的目的是, 若终端在当前模式的干扰频段工作时, 接收到网络侧发送的携带有目标频点 的另一模式内的切换请求, 所述目标频点位于另一模式的干扰频段时, 判断 所述目标频点是否在所述当前模式的隔离频段内, 若是, 则向网络侧回复拒 绝切换, 若不是, 则根据所述切换请求完成另一模式内的切换;
步骤 307、 如果网络侧以盲切的形式切换到一个 "隔离频段" 中的小区 中, 直接给网络侧回复失败, 过程结束。
上述终端切换方法, 仅仅在 UE终端做相应的修改就可以满足切换的射 频干扰要求; 且该方法是纯软件的实现, 对于硬件没有任何需求; 另外, 该 方法可以很容易地扩展到模式内的重选, 即终端自身在当前模式下发现信号 更好的小区,通过判断该小区的频点是否在另一频段的隔离频段内,若不在, 则可以完成当前模式内的切换。
如图 5所示, 为本发明实施方式的终端的结构示意图, 所述终端支持第 一模式和第二模式, 且所述第一模式中的第一频段和所述第二模式中的第二 频段互为干扰频段, 所述终端包括确定模块 51和处理模块 52, 其中:
确定模块 51 , 设置为当 UE在所述第一模式的所述第一频段中的频点进 行业务时, 根据所述频点确定所述第一模式的隔离频段; 处理模块 52,设置为接收到网络侧发送的携带有目标频点的第二模式内 的切换请求, 所述目标频点位于所述第二模式的第二频段时, 判断所述目标 频点是否在所述第一模式的隔离频段内, 若是, 则向网络侧回复拒绝切换, 若不是, 则根据所述切换请求完成第二模式内的切换。
为了减少网络侧指定 UE切换到 "隔离频段" 中的目标小区中的概率, 所述终端还包括: 发送模块 53 , 设置为在所述确定模块确定所述第一模式的 隔离频段之后, 向网络侧发送使用所述第一模式的隔离频段过滤后的测量结 果。 所述第一模式的隔离频段设置为所述第二模式的第二频段对所述第一模 式的第一频段产生的干扰大于预定阔值的频段。
所述第一模式为时分同步码分多址接入(TD )模式, 所述第一模式的第 一频段为 f频段; 所述第二模式为全球移动通讯系统(GSM )模式, 所述第 二模式的第二频段为数字蜂窝系统(DCS ) 1800频段; 或者所述第一模式为 GSM模式,所述第一模式的第一频段为 DCS1800频段; 所述第二模式为 TD 模式, 所述第二模式的第二频段为 f频段。
上述终端在完成模式内切换时, 可以根据 UE芯片性能较好地减少射频 干扰。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 上述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
以上实施例仅用以说明本发明的技术方案而非限制, 仅仅参照较佳实施 例对本发明进行了详细说明。 本领域的普通技术人员应当理解, 可以对本发 明的技术方案进行修改或者等同替换, 而不脱离本发明技术方案的精神和范 围, 均应涵盖在本发明的权利要求范围当中。
工业实用性 本发明实施方式的终端进行模式内切换的方法和终端, 可以较好地减少 终端在进行模式内切换后引起的射频干扰。

Claims

1、一种终端进行模式内切换的方法,所述终端支持第一模式和第二模式, 且所述第一模式中的第一频段和所述第二模式中的第二频段互为干扰频段, 所述方法包括:
所述终端在所述第一模式的第一频段中的频点进行业务, 根据所述频点 确定所述第一模式的隔离频段;
所述终端接收到网络侧发送的携带有目标频点的第二模式内的切换请 求, 所述目标频点位于所述第二模式的第二频段时, 判断所述目标频点是否 在所述第一模式的隔离频段内, 若是, 则向网络侧回复拒绝切换, 若不是, 则根据所述切换请求完成第二模式内的切换。
2、 根据权利要求 1所述的方法, 其中: 所述第一模式的隔离频段为所述第二模式的第二频段中, 对所述第一模 式的第一频段产生的干扰大于预定阔值的频段。
3、根据权利要求 2所述的方法, 其中, 在所述终端根据所述频点确定所 述第一模式的隔离频段的步骤之后, 所述方法还包括:
所述终端向网络侧发送使用所述第一模式的隔离频段过滤后的测量结 果。
4、 根据权利要求 1-3任一权利要求所述的方法, 其中: 所述第一模式为 时分同步码分多址接入(TD )模式, 所述第一模式的第一频段为 f频段; 所 述第二模式为全球移动通讯系统(GSM )模式, 所述第二模式的第二频段为 数字蜂窝系统(DCS ) 1800频段。
5、 根据权利要求 1-3任一权利要求所述的方法, 其中: 所述第一模式为 GSM模式,所述第一模式的第一频段为 DCS1800频段; 所述第二模式为 TD模式, 所述第二模式的第二频段为 f频段。
6、一种终端, 所述终端支持第一模式和第二模式, 且所述第一模式中的 第一频段和所述第二模式中的第二频段互为干扰频段, 所述终端包括: 确定模块, 其设置为: 当所述终端在所述第一模式的第一频段中的频点 进行业务时, 根据所述频点确定所述第一模式的隔离频段; 以及 处理模块, 其设置为: 接收到网络侧发送的携带有目标频点的第二模式 内的切换请求, 所述目标频点位于所述第二模式的第二频段时, 判断所述目 标频点是否在所述第一模式的隔离频段内,若是,则向网络侧回复拒绝切换, 若不是, 则根据所述切换请求完成第二模式内的切换。
7、 根据权利要求 6所述的终端, 其中: 所述第一模式的隔离频段为所述第二模式的第二频段中, 对所述第一模 式的第一频段产生的干扰大于预定阔值的频段。
8、 根据权利要求 7所述的终端, 其中, 所述终端还包括:
发送模块,其设置为在所述确定模块确定所述第一模式的隔离频段之后, 向网络侧发送使用所述第一模式的隔离频段过滤后的测量结果。
9、 根据权利要求 6-8任一权利要求所述的终端, 其中:
所述第一模式为时分同步码分多址接入(TD )模式, 所述第一模式的第 一频段为 f频段; 所述第二模式为全球移动通讯系统(GSM )模式, 所述第 二模式的第二频段为数字蜂窝系统(DCS ) 1800频段。
10、 根据权利要求 6-8任一权利要求所述的终端, 其中: 所述第一模式为 GSM模式,所述第一模式的第一频段为 DCS1800频段; 所述第二模式为 TD模式, 所述第二模式的第二频段为 f频段。
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