WO2015117439A1 - 一种集群终端及其小区切换方法、装置和计算机存储介质 - Google Patents

一种集群终端及其小区切换方法、装置和计算机存储介质 Download PDF

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WO2015117439A1
WO2015117439A1 PCT/CN2014/090732 CN2014090732W WO2015117439A1 WO 2015117439 A1 WO2015117439 A1 WO 2015117439A1 CN 2014090732 W CN2014090732 W CN 2014090732W WO 2015117439 A1 WO2015117439 A1 WO 2015117439A1
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cell
frequency
measurement
priority
system information
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PCT/CN2014/090732
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English (en)
French (fr)
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刘大力
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深圳市中兴微电子技术有限公司
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Priority to EP14881719.0A priority Critical patent/EP3171637A4/en
Publication of WO2015117439A1 publication Critical patent/WO2015117439A1/zh

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    • 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
    • H04W48/02—Access restriction performed under specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

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  • the present invention relates to Long Term Evolution (LTE) technologies, and in particular, to a cluster terminal and a cell switching method and apparatus thereof, and a computer storage medium.
  • LTE Long Term Evolution
  • the trunking communication system is a dedicated wireless communication system developed for industrial users' command and dispatching needs for specific industry applications. A large number of wireless users share a small number of wireless channels in the system, and the command and dispatch is the main application. It is a multi-purpose and high-performance system. Wireless communication system.
  • the trunking communication system has unique features such as scheduling, group calling and fast calling, and has become the development direction of the next generation cluster system.
  • the LTE trunking communication system extends the various needs and functions of the cluster based on the LTE system.
  • the LTE core network EPC and the cluster core network DSS are completely isolated.
  • the networking of the cluster application does not depend on the existing LTE EPC equipment, and does not affect the normal operation of the existing LTE EPC core network equipment. It can realize the effect of private network isolation and public network sharing.
  • the highlight of cluster services is users' fast contact, so the performance of cluster services is a key factor in the success of cluster business operations.
  • the first indicator of cluster service performance is voice clarity and data reception rate.
  • the premise of ensuring the two is that the cluster terminal must reside in a better cell. In order to achieve this, the cluster terminal must be enabled. Timely measure a better neighborhood and switch to that neighborhood. Therefore, the cluster terminal can always reside in a better cell for voice and data services to ensure the quality of the service.
  • embodiments of the present invention are expected to provide a cluster terminal and Its cell switching method, device and computer storage medium.
  • the embodiment of the invention provides a cell handover method for a cluster terminal, and the method includes:
  • the cell blacklist under each measurement object is obtained from the cluster-specific system information, and the cells other than the cell on the cell blacklist under each measurement object are measured, and the cell is measured according to the measurement result. Switching, the cell blacklist is used to record non-clustered cells.
  • An embodiment of the present invention provides a cell switching device of a cluster terminal, where the device includes: a system information module, a measurement module, and a switching module;
  • the system information module is configured to: when the cluster terminal is in the listening state, obtain a cell blacklist under each measurement object from the cluster exclusive system information, where the cell blacklist is used to record the non-clustered cell;
  • a measurement module configured to read a cell blacklist under each measurement object obtained by the system information module, and perform signal measurement on a cell other than the cell on the cell blacklist under each measurement object;
  • the switching module is configured to read the measurement result of the measurement module, and perform cell switching according to the measurement result.
  • the embodiment of the invention further provides a cluster terminal, which includes the above-mentioned cell switching device.
  • the embodiment of the present invention provides a cluster terminal, a cell handover method, a device, and a computer storage medium.
  • the cluster terminal When the cluster terminal is in a listening state, the cell blacklist under each measurement object is obtained from the cluster proprietary system information, and each measurement object is obtained.
  • the cell other than the cell on the cell blacklist performs signal measurement, and performs cell handover according to the measurement result.
  • the cell blacklist is used to record the non-clustered cell, thus avoiding the cluster terminal in the listening state to the non-clustered cell.
  • the signal measurement in turn, avoids switching to a non-clustered cell, ensuring continuity of the service.
  • FIG. 1 is a schematic flowchart of a method for implementing cell handover of a cluster terminal according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a cell switching apparatus for implementing a cluster terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of implementing a cluster terminal according to an embodiment of the present invention.
  • the serving cell When the cluster terminal is in the serving cell, if the serving cell is a non-cluster LTE cell, the serving cell does not broadcast the cluster-specific system information, and the cell camping and all services are performed according to existing rules.
  • the serving cell of the cluster terminal When the serving cell of the cluster terminal is a cluster LTE cell, the serving cell broadcasts the cluster-specific system information, and the cluster terminal receives the cluster-specific system information.
  • the system information module of the cluster terminal saves the cluster-specific system information.
  • the measurement module of the cluster terminal In the idle state, the measurement module of the cluster terminal does not use the cluster-specific system information. When the measurement module is configured and measured, only the relevant parameter configuration in other system information is used.
  • the cell reselection rule in the idle state also uses the existing evaluation rules.
  • the cell blacklist under each measurement object is obtained from the cluster-specific system information, and signals are measured on cells other than the cell on the cell blacklist under each measurement object.
  • the cell handover is performed according to the measurement result, and the cell blacklist is used to record the non-clustered cell.
  • the embodiment of the invention implements a cell handover method for a cluster terminal. As shown in FIG. 1 , the method includes the following steps:
  • Step 101 When the cluster terminal is in the listening state, the cell blacklist under each measurement object is obtained from the cluster proprietary system information, where the cell blacklist is used to record the non-clustered cell;
  • the cluster terminal receives the cluster-specific system information broadcasted by the serving cell, where the cluster-specific system information includes a cell blacklist, and the cell blacklist is used to record the non-clustered cell, and when the monitored state is in the listening state, The cell blacklist under each measurement object is read in the cluster proprietary system information.
  • Step 102 The cluster terminal performs signal measurement on a cell other than the cell on the cell blacklist under each measurement object.
  • the cluster terminal configures the cell blacklist to the physical layer of the cell, and the physical layer excludes the cell on the cell blacklist during signal measurement, and performs signal on the cell other than the cell on the cell blacklist under each measurement object.
  • the signal measurement includes: measurement of a cell reception strength and measurement of a cell reception quality, and the measurement objects refer to respective reception frequency points of the cluster terminal.
  • Step 103 The cluster terminal performs cell handover according to the measurement result.
  • the cluster terminal determines, according to the measured frequency priority of the cell other than the cell on the cell blacklist, the cell that meets the reselection criterion according to the measured cell reception strength and cell reception quality of each cell, and the cluster terminal switches to the cell.
  • the reselection criterion includes: switching to a reselection criterion of a cell having a higher frequency priority than a serving cell, switching to a reselection criterion of a cell having a lower frequency priority than the serving cell, and switching to a frequency priority with the serving cell Reselection criteria for cells of equal rank; taking the handover of the LTE cluster terminal from the serving cell to the E-UTRAN frequency as an example:
  • the cluster terminal switches to the reselection threshold of the cell on the E-UTRAN frequency with higher priority than the serving cell frequency. For:
  • Squal represents the cell reception quality of the serving cell
  • (ThreshX, HighQ) represents a high priority frequency point signal quality reselection threshold on the E-UTRAN frequency
  • GTDeltaTreshHighQ represents a high priority frequency point signal quality reselection threshold offset
  • ThreshServing LowQ
  • the reselection threshold of the cell on the E-UTRAN frequency that the cluster terminal switches to a higher priority than the serving cell frequency is:
  • Srxlev represents the cell reception strength of the serving cell
  • (ThreshX, HighP) represents a high priority frequency point signal strength reselection threshold on the E-UTRAN frequency
  • GTDeltaTreshHighQ represents a high priority frequency point signal strength reselection threshold offset
  • ThreshServing LowQ
  • the reselection threshold of the cell on which the cluster terminal switches to the E-UTRAN frequency lower than the priority of the serving cell frequency is:
  • the serving cell satisfies Squal1 ⁇ (ThreshServing, LowQ), and the cell on the E-UTRAN frequency satisfies Squal2>(ThreshX, LowQ)-GTDeltaTreshLowQ;
  • Squal1 represents the cell reception quality of the serving cell
  • Squal2 represents the cell reception quality of the cell on the E-UTRAN frequency
  • (ThreshX, LowQ) represents the low priority frequency signal quality reselection threshold on the E-UTRAN frequency
  • GTDeltaTreshLowQ represents Priority frequency point signal quality reselection threshold offset
  • the reselection threshold of the cell on which the cluster terminal switches to the E-UTRAN frequency lower than the priority of the serving cell frequency is:
  • the serving cell satisfies Srxlev1 ⁇ (ThreshServing, LowP), and the cell on the E-UTRAN frequency satisfies Srxlev2>(ThreshX, LowP)-GTDeltaTreshLowP;
  • Srxlev1 represents the cell reception strength of the serving cell
  • (ThreshServing, LowP) represents the minimum reselection threshold of the signal strength of the serving cell
  • Srxlev2 represents the cell reception strength of the cell on the E-UTRAN frequency
  • (ThreshX, LowP) represents the E-UTRAN.
  • GTDeltaTreshLowP represents the signal strength reselection threshold offset at the low priority frequency point;
  • the service area R value is calculated by the following formula:
  • Rs represents the serving cell R value
  • (Qmeas, s) represents the serving cell signal strength value
  • QHyst represents the R value hysteresis of the serving cell
  • GTQHyst represents the R value offset of the serving cell
  • Rs ⁇ Rn, Rn represents the R value of the cell having the same frequency priority as the serving cell.
  • the cell handover is performed, so that the cell with the highest frequency priority, the cell with the same frequency priority, and the frequency priority can be guaranteed. Switching of low cells is more likely to occur, ensuring that the cluster listens to the user's business continuity.
  • the cluster terminal uses the listening state switching timer to monitor the handover to the cell that meets the reselection criteria, and starts the timer Tlistenhandover when the handover starts. If the timer Tlistenhandover expires, the cell blacklist is reconfigured to The physical layer of the device performs signal measurement on the cells other than the cell on the cell blacklist under each measurement object, and re-switches to the cell that meets the reselection criterion. When the timer Tlistenhandover times out twice and the cell is switched When the cell is in the same cell, the cell is added to the listening state cell barring (BAR) list, and the cells in the barred list are not considered in subsequent cell handover.
  • BAR listening state cell barring
  • the present invention further provides a cell switching device for a cluster terminal.
  • the device includes: a system information module 21, a measurement module 22, and a switching module 23;
  • the system information module 21 can be implemented by the memory of the cluster terminal, and configured to obtain a cell blacklist under each measurement object from the cluster exclusive system information when the cluster terminal is in the listening state, and the cell blacklist is used to record the non-clustered cell. ;
  • the measurement module 22 can be implemented by the antenna transceiver of the cluster terminal, configured to read the cell blacklist under each measurement object obtained by the system information module 21, and perform signals on cells other than the cell on the cell blacklist under each measurement object. measuring;
  • the switching module 23 can be implemented by a processor of the cluster terminal and configured to read the measurement module 22 The measurement result, the cell switching is performed according to the measurement result;
  • the system information module 21 is further configured to receive cluster-specific system information broadcasted by the serving cell, where the cluster-specific system information includes a cell blacklist;
  • the measurement module 22 is specifically configured to configure a cell blacklist to the physical layer, and perform signal measurement on a cell other than the cell on the cell blacklist under each measurement object by using the physical layer, where the signal measurement includes: a cell Measurement of reception strength and measurement of reception quality of a cell, and the measurement objects refer to respective reception frequency points of the cluster terminal;
  • the switching module 23 is configured to determine, according to the measured frequency priority of the cell other than the cell on the cell blacklist, the cell that meets the reselection criterion according to the measured cell receiving strength of each cell and the cell receiving quality, to the a cell handover; the reselection criterion includes: switching to a reselection criterion of a cell having a higher frequency priority than a serving cell, switching to a reselection criterion of a cell having a lower frequency priority than the serving cell, and switching to a serving cell Reselection criteria for cells with equal frequency priorities.
  • the LTE cluster terminal switches from the serving cell to the E-UTRAN frequency cell as an example:
  • the cluster terminal switches to the reselection threshold of the cell on the E-UTRAN frequency with higher priority than the serving cell frequency. For:
  • Squal represents the cell reception quality of the serving cell
  • (ThreshX, HighQ) represents a high priority frequency point signal quality reselection threshold on the E-UTRAN frequency
  • GTDeltaTreshHighQ represents a high priority frequency point signal quality reselection threshold offset
  • ThreshServing LowQ
  • the reselection threshold of the cell on the E-UTRAN frequency that the cluster terminal switches to a higher priority than the serving cell frequency is:
  • ThreshServing LowQ
  • the reselection threshold of the cell on which the cluster terminal switches to the E-UTRAN frequency lower than the priority of the serving cell frequency is:
  • the serving cell satisfies Squal1 ⁇ (ThreshServing, LowQ), and the cell on the E-UTRAN frequency satisfies Squal2>(ThreshX, LowQ)-GTDeltaTreshLowQ;
  • Squal1 represents the cell reception quality of the serving cell
  • Squal2 represents the cell reception quality of the cell on the E-UTRAN frequency
  • (ThreshX, LowQ) represents the low priority frequency signal quality reselection threshold on the E-UTRAN frequency
  • GTDeltaTreshLowQ represents Priority frequency point signal quality reselection threshold offset
  • the reselection threshold of the cell on which the cluster terminal switches to the E-UTRAN frequency lower than the priority of the serving cell frequency is:
  • the serving cell satisfies Srxlev1 ⁇ (ThreshServing, LowP), and the cell on the E-UTRAN frequency satisfies Srxlev2>(ThreshX, LowP)-GTDeltaTreshLowP;
  • Srxlev1 represents the cell reception strength of the serving cell
  • (ThreshServing, LowP) represents the minimum reselection threshold of the signal strength of the serving cell
  • Srxlev2 represents the cell reception strength of the cell on the E-UTRAN frequency
  • (ThreshX, LowP) represents the E-UTRAN.
  • GTDeltaTreshLowP represents the signal strength reselection threshold offset at the low priority frequency point;
  • the service area R value is calculated by the following formula:
  • Rs represents the serving cell R value
  • (Qmeas, s) represents the serving cell signal strength value
  • QHyst represents the serving cell R value hysteresis
  • GTQHyst represents the serving cell R value offset
  • Rs ⁇ Rn, Rn represents the R value of the cell having the same frequency priority as the serving cell.
  • the apparatus may further include: a listening state switching timing module 24 configured to start a timer Tlistenhandover when the switching module 23 starts switching, and if the switching success indication of the switching module 23 is not received after the timer Tlistenhandover times out, re-triggering
  • BAR listening state cell barring
  • the present invention further provides a cluster terminal capable of receiving cluster-specific system information broadcasted by a serving cell.
  • the cluster terminal includes the cell switching device, and the specific structure of the device is shown in FIG. the same.
  • the cell handover method of the cluster terminal according to the embodiment of the present invention may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as an independent product.
  • a computer readable storage medium if it is implemented in the form of a software function module and sold or used as an independent product.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media containing computer usable program code, including but not limited to a USB flash drive, a mobile hard drive, a read only memory (ROM, Read-Only Memory), disk storage, CD-ROM, optical storage, etc.
  • a USB flash drive a mobile hard drive
  • a read only memory ROM, Read-Only Memory
  • disk storage CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • an embodiment of the present invention further provides a computer storage medium, wherein a computer program is stored, and the computer program is used to execute a cell handover method of a cluster terminal according to an embodiment of the present invention.
  • the cell blacklist for recording the non-clustered cell is obtained from the cluster exclusive system information, and the cell measurement is performed on the cell other than the cell on the cell blacklist, according to the measurement result.

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Abstract

本发明公开了一种集群终端及其小区切换方法、装置和计算机存储介质，集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，根据测量结果进行小区的切换，所述小区黑名单用于记录非集群小区。

Description

一种集群终端及其小区切换方法、装置和计算机存储介质 技术领域
本发明涉及长期演进(LTE)技术，尤其涉及一种集群终端及其小区切换方法、装置和计算机存储介质。
背景技术
集群通信系统是为了满足行业用户指挥调度需求而开发的、面向特定行业应用的专用无线通信系统，系统中大量无线用户共享少量无线信道，以指挥调度为主体应用，是一种多用途、高效能的无线通信系统。集群通信系统具有特有的调度、组呼以及快速呼叫等特性，已经成为下一代集群系统的发展方向。
LTE集群通信系统，以LTE系统为基础扩展实现集群的各种需求和功能。组网架构上，LTE的核心网EPC和集群的核心网DSS，做到业务完全隔离，集群应用的组网不依赖于现有的LTE EPC设备，不影响已有LTE EPC核心网设备的正常运作，能够实现专网隔离，公网共享的效果。
集群业务吸引用户的亮点在于其快捷的联络方式，因此集群业务的性能是集群业务运营能否成功的一个关键因素。而集群业务性能中首要的一个指标就是话音清晰度以及数据接收速率，而要保证这两者的前提是必须使集群终端驻留在一个较好的小区，为了实现该前提就得使集群终端能够及时测量到更好的邻区并切换到该邻区。从而使得集群终端始终能够驻留在较好小区内进行语音和数据业务，保证业务的质量。
发明内容
为解决现有存在的技术问题，本发明实施例期望提供一种集群终端及 其小区切换方法、装置和计算机存储介质。
本发明实施例的技术方案是这样实现的：
本发明实施例提供一种集群终端的小区切换方法，该方法包括：
集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，根据测量结果进行小区的切换，所述小区黑名单用于记录非集群小区。
本发明实施例提供一种集群终端的小区切换装置，该装置包括：系统信息模块、测量模块、切换模块；其中，
系统信息模块，配置为在集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，所述小区黑名单用于记录非集群小区；
测量模块，配置为读取系统信息模块获得的各测量对象下的小区黑名单，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量；
切换模块，配置为读取测量模块的测量结果，根据测量结果进行小区的切换。
本发明实施例还提供一种集群终端，该集群终端包括上述的小区切换装置。
本发明实施例提供了一种集群终端及其小区切换方法、装置和计算机存储介质，集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，根据测量结果进行小区的切换，所述小区黑名单用于记录非集群小区，如此，避免了集群终端在听状态下对非集群小区的信号测量，进而避免切换到非集群小区，保证了业务的连续性。
附图说明
图1为本发明实施例实现集群终端的小区切换方法的流程示意图；
图2为本发明实施例实现集群终端的小区切换装置的结构示意图；
图3为本发明实施例实现集群终端的结构示意图。
具体实施方式
集群终端在服务小区时，如果服务小区是非集群LTE小区，则服务小区不广播集群专有系统信息，小区驻留和一切业务按照现有规则进行。
当集群终端的服务小区为集群LTE小区时，服务小区广播集群专有系统信息，集群终端接收所述集群专有系统信息。集群终端的系统信息模块会保存集群专有系统信息，在空闲态过程中，集群终端的测量模块不使用集群专有系统信息，测量模块配置测量时，仅使用其它系统信息中的相关参数配置，空闲态的小区重选规则也采用现有的评估规则。
本发明实施例中，集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，根据测量结果进行小区的切换，所述小区黑名单用于记录非集群小区。
下面通过附图及具体实施例对本发明做进一步的详细说明。
本发明实施例实现一种集群终端的小区切换方法，如图1所示，该方法包括以下几个步骤：
步骤101：集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，所述小区黑名单用于记录非集群小区；
具体的，集群终端接收服务小区广播的集群专有系统信息，所述集群专有系统信息中包括小区黑名单，所述小区黑名单用于记录非集群小区，在监测到处于听状态时，从集群专有系统信息中读取各测量对象下的小区黑名单。
步骤102：集群终端对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量；
具体的，集群终端将小区黑名单配置到自身的物理层，所述物理层在信号测量时排除小区黑名单上的小区，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，所述信号测量包括：小区接收强度的测量和小区接收质量的测量等，所述各测量对象指的是集群终端的各接收频点。
步骤103：集群终端根据测量结果进行小区的切换；
具体的，集群终端按照除小区黑名单上的小区以外的小区的频率优先级，根据测量得到的各小区的小区接收强度和小区接收质量确定满足重选准则的小区，集群终端向所述小区切换；所述重选准则包括：切换到比服务小区的频率优先级高的小区的重选准则、切换到比服务小区的频率优先级低的小区的重选准则、切换到与服务小区的频率优先级相等的小区的重选准则；以LTE集群终端从服务小区向E-UTRAN频率的小区切换为例：
1、切换到比服务小区的频率优先级高的小区的重选准则为：
如果系统信息块3(SIB3)中提供了服务小区信号质量最低重选门限(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级更高的E-UTRAN频率上的小区的重选门限为：
Squal>(ThreshX,HighQ)–GTDeltaTreshHighQ
其中，Squal表示服务小区的小区接收质量，(ThreshX,HighQ)表示E-UTRAN频率上的高优先级频点信号质量重选门限，GTDeltaTreshHighQ表示高优先级频点信号质量重选门限偏移；
如果系统信息块3中没有提供(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级更高的E-UTRAN频率上的小区的重选门限为：
Srxlev>(ThreshX,HighP)–GTDeltaTreshHighP
其中，Srxlev表示服务小区的小区接收强度，(ThreshX,HighP)表示E-UTRAN频率上的高优先级频点信号强度重选门限，GTDeltaTreshHighQ表示高优先级频点信号强度重选门限偏移；
2、切换到比服务小区的频率优先级低的小区的重选准则为：
如果系统信息块3中提供了(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级低的E-UTRAN频率上的小区的重选门限为：
服务小区满足Squal1<(ThreshServing,LowQ)，并且所述E-UTRAN频率上的小区满足Squal2>(ThreshX,LowQ)-GTDeltaTreshLowQ；
其中，Squal1表示服务小区的小区接收质量，Squal2表示E-UTRAN频率上的小区的小区接收质量，(ThreshX,LowQ)表示E-UTRAN频率上的低优先级频点信号质量重选门限，GTDeltaTreshLowQ表示优先级频点信号质量重选门限偏移；
如果系统信息块3中没有提供(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级低的E-UTRAN频率上的小区的重选门限为：
服务小区满足Srxlev1<(ThreshServing,LowP)，并且所述E-UTRAN频率上的小区满足Srxlev2>(ThreshX,LowP)–GTDeltaTreshLowP；
其中，Srxlev1表示服务小区的小区接收强度，(ThreshServing,LowP)表示服务小区的信号强度最低重选门限，Srxlev2表示E-UTRAN频率上的小区的小区接收强度，(ThreshX,LowP)表示E-UTRAN频率上的低优先级频点信号强度重选门限，GTDeltaTreshLowP表示低优先级频点上的信号强度重选门限偏移；
3、切换到与服务小区的频率优先级相等的小区的重选准则为：
服务小区R值计算采取以下公式：
Rs＝(Qmeas,s)+QHyst-GTQHyst
其中，Rs表示服务小区R值，(Qmeas,s)表示服务小区信号强度值， QHyst表示服务小区R值迟滞量，GTQHyst表示服务小区R值偏移；
Rs<Rn，Rn表示与服务小区的频率优先级相等的小区的R值。
按照以上的重选准则，如果在满足以上的任一重选准则并保持指定时间，则进行小区的切换，这样能够保证到频率优先级高的小区、到频率优先级相同的小区和到频率优先级低的小区的切换更易发生，保证集群听用户的业务连续性。
集群听状态业务连续性的另外一种保证方式是：
集群终端在向满足重选准则的小区切换的过程中使用听状态切换定时器监控，在切换开始时启动定时器Tlistenhandover，如果在定时器Tlistenhandover超时仍没有切换成功，则重新将小区黑名单配置到自身的物理层，重新对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，并重新向满足重选准则的小区切换，当连续两次定时器Tlistenhandover超时、且切换的小区为同一小区时，将所述小区加入听状态小区被禁止(BAR)列表，后续进行小区切换时不考虑被禁止列表中的小区。
为了实现上述方法，本发明还提供一种集群终端的小区切换装置，如图2所示，该装置包括：系统信息模块21、测量模块22、切换模块23；其中，
系统信息模块21可以由集群终端的存储器实现，配置为在集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，所述小区黑名单用于记录非集群小区；
测量模块22可以由集群终端的天线收发器实现，配置为读取系统信息模块21获得的各测量对象下的小区黑名单，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量；
切换模块23可以由集群终端的处理器实现，配置为读取测量模块22 的测量结果，根据测量结果进行小区的切换；
所述系统信息模块21，还配置为接收服务小区广播的集群专有系统信息，所述集群专有系统信息中包括小区黑名单；
所述测量模块22，具体配置为将小区黑名单配置到物理层，通过所述物理层对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，所述信号测量包括：小区接收强度的测量和小区接收质量的测量等，所述各测量对象指的是集群终端的各接收频点；
所述切换模块23，具体配置为按照除小区黑名单上的小区以外的小区的频率优先级，根据测量得到的各小区的小区接收强度和小区接收质量确定满足重选准则的小区，向所述小区切换；所述重选准则包括：切换到比服务小区的频率优先级高的小区的重选准则、切换到比服务小区的频率优先级低的小区的重选准则、切换到与服务小区的频率优先级相等的小区的重选准则。以LTE集群终端从服务小区向E-UTRAN频率的小区切换为例：
1、切换到比服务小区的频率优先级高的小区的重选准则为：
如果系统信息块3(SIB3)中提供了服务小区信号质量最低重选门限(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级更高的E-UTRAN频率上的小区的重选门限为：
Squal>(ThreshX,HighQ)–GTDeltaTreshHighQ
其中，Squal表示服务小区的小区接收质量，(ThreshX,HighQ)表示E-UTRAN频率上的高优先级频点信号质量重选门限，GTDeltaTreshHighQ表示高优先级频点信号质量重选门限偏移；
如果系统信息块3中没有提供(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级更高的E-UTRAN频率上的小区的重选门限为：
Srxlev>(ThreshX,HighP)–GTDeltaTreshHighP
其中，Srxlev表示服务小区的小区接收强度，(ThreshX,HighP)表示 E-UTRAN频率上的高优先级频点信号强度重选门限，GTDeltaTreshHighQ表示高优先级频点信号强度重选门限偏移；
2、切换到比服务小区的频率优先级低的小区的重选准则为：
如果系统信息块3中提供了(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级低的E-UTRAN频率上的小区的重选门限为：
服务小区满足Squal1<(ThreshServing,LowQ)，并且所述E-UTRAN频率上的小区满足Squal2>(ThreshX,LowQ)-GTDeltaTreshLowQ；
其中，Squal1表示服务小区的小区接收质量，Squal2表示E-UTRAN频率上的小区的小区接收质量，(ThreshX,LowQ)表示E-UTRAN频率上的低优先级频点信号质量重选门限，GTDeltaTreshLowQ表示优先级频点信号质量重选门限偏移；
如果系统信息块3中没有提供(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级低的E-UTRAN频率上的小区的重选门限为：
服务小区满足Srxlev1<(ThreshServing,LowP)，并且所述E-UTRAN频率上的小区满足Srxlev2>(ThreshX,LowP)–GTDeltaTreshLowP；
其中，Srxlev1表示服务小区的小区接收强度，(ThreshServing,LowP)表示服务小区的信号强度最低重选门限，Srxlev2表示E-UTRAN频率上的小区的小区接收强度，(ThreshX,LowP)表示E-UTRAN频率上的低优先级频点信号强度重选门限，GTDeltaTreshLowP表示低优先级频点上的信号强度重选门限偏移；
3、切换到与服务小区的频率优先级相等的小区的重选准则为：
服务小区R值计算采取以下公式：
Rs＝(Qmeas,s)+QHyst-GTQHyst
其中，Rs表示服务小区R值，(Qmeas,s)表示服务小区信号强度值，QHyst表示服务小区R值迟滞量，GTQHyst表示服务小区R值偏移；
Rs<Rn，Rn表示与服务小区的频率优先级相等的小区的R值。
该装置还可以包括：听状态切换定时模块24，配置为在切换模块23切换开始时启动定时器Tlistenhandover，如果在定时器Tlistenhandover超时仍没有收到所述切换模块23的切换成功指示，则重新触发系统信息模块21、测量模块22、切换模块23，当连续两次定时器Tlistenhandover超时、且切换的小区为同一小区时，将所述小区加入听状态小区被禁止(BAR)列表，后续所述切换模块23进行小区切换时不考虑被禁止列表中的小区，从而避免由于无线信号的扰动，可能发生一直切换失败的情形。
基于上述装置，本发明还提供一种集群终端，能够接收服务小区广播的集群专有系统信息，如图3所示，该集群终端包括上述小区切换装置，该装置的具体结构与图2所示相同。
本发明实施例所述集群终端的小区切换方法如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质上实施的计算机程序产品的形式，所述存储介质包括但不限于U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、磁盘存储器、CD-ROM、光学存储器等。
本申请是根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器， 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
相应的，本发明实施例还提供一种计算机存储介质，其中存储有计算机程序，该计算机程序用于执行本发明实施例的集群终端的小区切换方法。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明实施例提供的方案，集群终端处于听状态时，从集群专有系统信息中获取记录非集群小区的小区黑名单，对除小区黑名单上的小区以外的小区进行信号测量，根据测量结果进行小区的切换，能够避免集群终端在听状态下对非集群小区的信号测量，进而避免切换到非集群小区，保证业务的连续性。

Claims (11)

  1. 一种集群终端的小区切换方法，该方法包括：
    集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，根据测量结果进行小区的切换，所述小区黑名单用于记录非集群小区。
  2. 根据权利要求1所述的小区切换方法，其中，该方法还包括：在集群终端处于听状态之前，接收服务小区广播的集群专有系统信息，所述集群专有系统信息中包括小区黑名单。
  3. 根据权利要求1所述的小区切换方法，其中，所述对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量包括：集群终端将小区黑名单配置到自身的物理层，所述物理层在信号测量时排除小区黑名单上的小区，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，所述信号测量包括：小区接收强度的测量和小区接收质量的测量；
    所述根据测量结果进行小区的切换包括：集群终端按照除小区黑名单上的小区以外的小区的频率优先级，根据测量得到的各小区的小区接收强度和小区接收质量确定满足重选准则的小区，集群终端向所述小区切换。
  4. 根据权利要求3所述的小区切换方法，其中，所述重选准则包括：切换到比服务小区的频率优先级高的小区的重选准则、切换到比服务小区的频率优先级低的小区的重选准则、切换到与服务小区的频率优先级相等的小区的重选准则。
  5. 根据权利要求4所述的小区切换方法，其中，
    所述切换到比服务小区的频率优先级高的小区的重选准则为：
    如果系统信息块3中提供了服务小区信号质量最低重选门限(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级更高的 E-UTRAN频率上的小区的重选门限为：
    Squal>(ThreshX,HighQ)–GTDeltaTreshHighQ
    其中，Squal表示服务小区的小区接收质量，(ThreshX,HighQ)表示E-UTRAN频率上的高优先级频点信号质量重选门限，GTDeltaTreshHighQ表示高优先级频点信号质量重选门限偏移；
    如果系统信息块3中没有提供(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级更高的E-UTRAN频率上的小区的重选门限为：
    Srxlev>(ThreshX,HighP)–GTDeltaTreshHighP
    其中，Srxlev表示服务小区的小区接收强度，(ThreshX,HighP)表示E-UTRAN频率上的高优先级频点信号强度重选门限，GTDeltaTreshHighP表示高优先级频点信号强度重选门限偏移；
    所述切换到比服务小区的频率优先级低的小区的重选准则为：
    如果系统信息块3中提供了(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级低的E-UTRAN频率上的小区的重选门限为：
    服务小区满足Squal1<(ThreshServing,LowQ)，并且所述E-UTRAN频率上的小区满足Squal2>(ThreshX,LowQ)-GTDeltaTreshLowQ；
    其中，Squal1表示服务小区的小区接收质量，Squal2表示E-UTRAN频率上的小区的小区接收质量，(ThreshX,LowQ)表示E-UTRAN频率上的低优先级频点信号质量重选门限，GTDeltaTreshLowQ表示低优先级频点信号质量重选门限偏移；
    如果系统信息块3中没有提供(ThreshServing,LowQ)，则集群终端切换到比服务小区频率优先级低的E-UTRAN频率上的小区的重选门限为：
    服务小区满足Srxlev1<(ThreshServing,LowP)，并且所述E-UTRAN频率上的小区满足Srxlev2>(ThreshX,LowP)–GTDeltaTreshLowP；
    其中，Srxlev1表示服务小区的小区接收强度，(ThreshServing,LowP) 表示服务小区的信号强度最低重选门限，Srxlev2表示E-UTRAN频率上的小区的小区接收强度，(ThreshX,LowP)表示E-UTRAN频率上的低优先级频点信号强度重选门限，GTDeltaTreshLowP表示低优先级频点上的信号强度重选门限偏移；
    所述切换到与服务小区的频率优先级相等的小区的重选准则为：
    服务小区R值计算采取以下公式：
    Rs＝(Qmeas,s)+QHyst-GTQHyst
    其中，Rs表示服务小区R值，(Qmeas,s)表示服务小区信号强度值，QHyst表示服务小区R值迟滞量，GTQHyst表示服务小区R值偏移；
    Rs<Rn，Rn表示与服务小区的频率优先级相等的小区的R值。
  6. 一种集群终端的小区切换装置，该装置包括：系统信息模块、测量模块、切换模块；其中，
    系统信息模块，配置为在集群终端处于听状态时，从集群专有系统信息中获取各测量对象下的小区黑名单，所述小区黑名单用于记录非集群小区；
    测量模块，配置为读取系统信息模块获得的各测量对象下的小区黑名单，对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量；
    切换模块，配置为读取测量模块的测量结果，根据测量结果进行小区的切换。
  7. 根据权利要求6所述的小区切换装置，其中，所述系统信息模块，还配置为接收服务小区广播的集群专有系统信息，所述集群专有系统信息中包括小区黑名单。
  8. 根据权利要求6所述的小区切换装置，其中，所述测量模块，配置为将小区黑名单配置到物理层，通过所述物理层对各测量对象下的除小区黑名单上的小区以外的小区进行信号测量，所述信号测量包括：小区接收 强度的测量和小区接收质量的测量；
    所述切换模块，配置为按照除小区黑名单上的小区以外的小区的频率优先级，根据测量得到的各小区的小区接收强度和小区接收质量确定满足重选准则的小区，向所述小区切换。
  9. 根据权利要求6所述的小区切换装置，其中，该装置还包括：听状态切换定时模块，配置为在切换模块切换开始时启动定时器，如果在定时器超时仍没有收到所述切换模块的切换成功指示，则重新触发系统信息模块、测量模块、切换模块，当连续两次定时器超时、且切换的小区为同一小区时，将所述小区加入听状态小区被禁止列表。
  10. 一种集群终端，该集群终端包括权利要求6至9任一项所述的小区切换装置。
  11. 一种计算机存储介质，其中存储有计算机程序，该计算机程序用于执行权利要求1至5任一项所述的集群终端的小区切换方法。
PCT/CN2014/090732 2014-07-21 2014-11-10 一种集群终端及其小区切换方法、装置和计算机存储介质 WO2015117439A1 (zh)

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