WO2010139262A1 - 移动终端及其上报移动状态的方法 - Google Patents

移动终端及其上报移动状态的方法 Download PDF

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Publication number
WO2010139262A1
WO2010139262A1 PCT/CN2010/073409 CN2010073409W WO2010139262A1 WO 2010139262 A1 WO2010139262 A1 WO 2010139262A1 CN 2010073409 W CN2010073409 W CN 2010073409W WO 2010139262 A1 WO2010139262 A1 WO 2010139262A1
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Prior art keywords
state
evaluation
mobile
enodeb
mobile terminal
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PCT/CN2010/073409
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English (en)
French (fr)
Inventor
易鸿锋
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中兴通讯股份有限公司
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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
Priority to JP2012513461A priority Critical patent/JP5876824B2/ja
Priority to US13/375,887 priority patent/US8731563B2/en
Priority to EP10782966.5A priority patent/EP2426980B1/en
Priority to BRPI1009007A priority patent/BRPI1009007A2/pt
Priority to AU2010256196A priority patent/AU2010256196B2/en
Publication of WO2010139262A1 publication Critical patent/WO2010139262A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to a mobile state assessment technique in a mobile communication system, and more particularly to a mobile terminal and a method for the mobile state thereof. Background technique
  • the current 3rd Generation Partnership Project (3GPP) protocol defines the mobile terminal status of the user equipment (UE, User Equipment) in the idle (Idle) state in the Long Term Evolution (LTE) system.
  • UE User Equipment
  • Idle idle
  • LTE Long Term Evolution
  • the UE If the number of times that the UE performs cell reselection in the time period of the preset T CRmax is greater than the set lower limit number N CR _ M and less than or equal to the upper limit number N CR _ H , the UE is considered to be in the medium speed moving state;
  • the UE If the number of times the UE performs cell reselection within a preset time period of T CRmax is greater than the set N C R — H , the UE is considered to be in a high speed mobile state;
  • the UE If the number of times the UE performs cell reselection within a preset time period of T CRmaxHyst is less than or equal to N CR — M , the UE is considered to be in a normal moving state.
  • the UE detects the number of cell reselection times of the UE, and if the decision criterion of the high-speed mobile state is met, enters a high-speed mobile state; if the decision criterion of the medium-speed mobile state is met, the medium-speed moving state is entered; if the high-speed mobile state is not satisfied The decision criterion does not satisfy the decision criterion of the medium-speed moving state, and then enters the normal moving state.
  • the evaluation parameters used in the above-mentioned respective decision criteria are configured by the evolved Node B (eNodeB, evolved NodeB) and sent to the UE through the system broadcast; after the UE determines its own mobile state according to the decision criterion, the corresponding cell will be selected.
  • the reselection parameter performs cell reselection.
  • the eNodeB on the network side cannot know the judgment result of the UE to its own mobile state, and cannot directly measure the moving speed of the UE. Therefore, when performing frequency offset correction, resource scheduling, handover target cell, etc., it cannot be different.
  • the UE in the mobile state adopts different targeted processing strategies, which brings inconvenience to the actual application. Summary of the invention
  • the main object of the present invention is to provide a mobile terminal and a method for reporting the mobile state thereof, so as to solve the problem that the eNodeB cannot know the mobile state of the UE.
  • the present invention provides a method for a mobile terminal to report a mobile state, the method comprising: a user terminal (UE) according to an evolved node in a radio resource control (RRC) connection state
  • UE user terminal
  • RRC radio resource control
  • the first evaluation parameter delivered by the (eNodeB) evaluates the movement state of the eNodeB and obtains the first judgment result after the evaluation;
  • the UE reports the first decision result to the eNodeB through the measurement report message in the RRC connected state.
  • the UE evaluates its own mobile state according to the first evaluation parameter and obtains a first determination result, which is specifically:
  • the UE obtains the number of times the cell is replaced in the time period of the preset first timer t-Evaluation and the second timer t-HystNormal, respectively, and obtains the number of times with the preset first lower limit times n-CellChangeMedium and An upper limit n-CellChangeHigh is compared;
  • n-CellChangeHigh it is determined that the UE is in a high-speed mobile state
  • n-CellChangeMedium it is determined that the UE is in a normal moving state
  • the method further includes: the UE carrying the first decision result by using a new cell Mobilitystate in the measurement report message, specifically:
  • Mobilitystate is set to high (High);
  • the Mobilitystate is set to Medium (Medium);
  • the Mobilitystate is set to Normal (Normal).
  • the method further includes: before the UE enters the RRC connection state, the UE evaluates the mobile state of the eNodeB according to the second evaluation parameter that is sent by the eNodeB, and obtains the second judgment result after the evaluation; During the establishment of the RRC connection, the RRC connection establishment complete message is reported to the eNodeB.
  • the UE evaluates its own mobile state according to the second evaluation parameter and obtains a second determination result, which is specifically:
  • the method further includes: the UE carrying the second decision result by using a new cell Mobilitystate in the RRC connection setup complete message, specifically:
  • the Mobilitystate is set to High
  • the Mobilitystate is set to Medium
  • the Mobilitystate is set to Normal.
  • the method further includes: when performing the frequency offset correction, the resource scheduling, and the handover target cell processing, the eNodeB extracts different UEs in different mobile states according to the determination result. Processing strategy.
  • the invention also provides a mobile terminal, comprising:
  • An evaluation module configured to evaluate, according to the first evaluation parameter sent by the eNodeB, the mobile terminal, and obtain the first judgment result after the evaluation;
  • the result reporting module is configured to report the first decision result to the eNodeB by using a measurement report message in an RRC connected state.
  • the evaluation module is further configured to: before the mobile terminal enters the RRC connection state, evaluate the mobile state of the mobile terminal according to the second evaluation parameter that is sent by the eNodeB through the system broadcast, and obtain the second judgment result after the evaluation;
  • the result reporting module is further configured to: when the mobile terminal performs the RRC connection establishment, send the second decision result to the eNodeB by using an RRC connection setup complete message.
  • the result reporting module is further configured to: carry the first decision result by using a new cell Mobilitystate in the measurement report message, and carry the second decision result by using a new cell Mobilitystate in the RRC connection setup complete message.
  • the invention provides a mobile terminal and a method for reporting the mobile state, and the UE evaluates the result of the RRC connection state to the eNodeB by using the measurement report message; or the UE in the Idle state is in the cell reselection process.
  • the result of the evaluation of the mobile state is reported to the eNodeB through RRC signaling, and provides a reference for the eNodeB to select a related processing policy corresponding to the UE.
  • the evaluation of the mobile state can use the existing configuration parameters, principles and processing procedures in the protocol, and does not bring additional processing overhead to the UE; and the indicator for evaluating the mobile state is the parameter configured by the eNodeB, and the eNodeB can be unified by parameter configuration.
  • the UE and eNodeB recognize the correspondence between high, medium and normal different mobile states and speeds.
  • the eNodeB when the cell handover process is performed, the eNodeB is configured to select the handover target cell of the corresponding speed attribute for the UEs of different mobile states, so as to assist the eNodeB to implement the consistency between the bearer UE type and the cell attribute plan;
  • the frequency selective scheduling and frequency hopping techniques are respectively used to meet the requirements of different channel conditions.
  • the eNodeB can be used to obtain different targeted frequency offset correction methods for UEs with different mobile states.
  • FIG. 1 is a flowchart of a method for reporting a mobile state by a mobile terminal according to the present invention
  • FIG. 2 is a schematic structural diagram of a mobile terminal according to the present invention. detailed description
  • the present invention provides a method for the UE to report the mobile state, as shown in FIG. 1 , which mainly includes the following steps:
  • Step 101 The UE evaluates its own mobile state according to the first evaluation parameter sent by the eNodeB in the RRC (Radio Resource Control) connection state, and obtains the first judgment result after the evaluation.
  • the UE evaluates the mobile state of the eNodeB according to the first evaluation parameter that is sent by the eNodeB through the RRC connection reconfiguration message, and obtains the first judgment result after the evaluation, which specifically includes the following operations:
  • the UE obtains the number of times the cell is replaced in the time period of the preset first timer t-Evaluation and the second timer t-HystNormal, respectively, and obtains the number of times with the preset first lower limit times n-CellChangeMedium and An upper limit n-CellChangeHigh is compared;
  • t-Evaluation and t-HystNormal can be set according to actual needs, and there is no size relationship between t-Evaluation and t-HystNormal. Of course, the values can be equal.
  • n-CellChangeHigh is greater than n-CellChangeMedium.
  • Step 102 The UE sends the first decision result to the eNodeB through a Measurement Report message in an RRC connected state.
  • the UE reports the first judgment result obtained by the current evaluation to the eNodeB by using the Measurement Report message in the RRC connection state. Further, the Mobilitystate is added to the Measurement Report message, and the Mobilitystate is used to carry the first judgment result, which specifically includes the following three cases:
  • the Mobilitystate is set to high (High);
  • Mobilitystate is set to Medium ( Medium );
  • the Mobilitystate is set to Normal (Normal).
  • measResultServCell SEQUENCE ⁇
  • measResultListGERAN MeasResultListGERAN
  • measResultsCDMA2000 MeasResultsCDM A2000
  • MeasResultListEUTRA SEQUENCE (SIZE (L.maxCellReport)) OF MeasResultEUTRA
  • MeasResultEUTRA SEQUENCE ⁇
  • the foregoing method for reporting the mobile state is for the UE in the connected state, as another embodiment of the present invention, for the UE in the Idle state, the UE may be delivered by the eNodeB according to the system broadcast before the UE enters the RRC connection state.
  • the second evaluation parameter evaluates its own mobile state and obtains the second decision result after the evaluation; and in the process of establishing the RRC connection, the RRC Connection Setup Complete message is obtained, and the second decision is obtained.
  • the result is reported to the eNodeB.
  • the UE evaluates its own mobile state according to the second evaluation parameter, and obtains the second judgment result after the evaluation, which specifically includes the following operations:
  • T CRmax and T CRmaxHyst values can be set according to actual needs, and there is no relationship between the size, of course, also be equal to the value between T CRmax and T CRmaxHyst.
  • the value of N CR _ H is greater than N CR — M.
  • the UE may report the result of the last evaluation to the eNodeB through the RRC Connection Setup Complete message during the RRC connection setup. Further, by adding a cell in the RRC Connection Setup Complete message Mobilitystate, using Mobilitystate to carry the second decision result, includes the following three cases:
  • the Mobilitystate is set to High
  • the Mobilitystate is set to Medium
  • the Mobilitystate is set to Normal.
  • the new cell Mobilitystate corresponds to the modification in the 3GPP protocol, as follows: - ASN1 START
  • the mobile state reporting method in the RRC connection establishment process and the mobile state reporting method in the RRC connection state may be used independently or in combination.
  • the eNodeB After the UE reports the result of the decision (including the first decision result and the second decision result) to the eNodeB, when the eNodeB performs the process of frequency offset correction, resource scheduling, handover target cell, etc., the eNodeB can perform different mobile states according to the decision result.
  • the UE adopts different processing strategies. For example, if the UE determines that its mobile state is a high-speed mobile state in the Idle state, and the UE establishes an RRC connection and reports its mobile state to the eNodeB, the eNodeB learns according to the cell Mobilitystate in the RRC Connection Setup Complete message reported by the UE.
  • the UE is in a high-speed mobile state, and then uses a frequency hopping technique for the UE when the frequency selective scheduling cannot satisfy the UE channel; if the UE is handed over, the eNodeB selects the high-speed cell as the target cell of the handover; The UE chooses to use the strategy of correcting the large frequency offset to estimate and correct the frequency offset.
  • the present invention further provides a mobile terminal, as shown in FIG. 2, including: an evaluation module 10 and a result reporting module 20, in order to implement the method for reporting the mobile state.
  • the evaluation module 10 is configured to perform, according to the first evaluation parameter delivered by the eNodeB, in the RRC connection state. The moving state of the mobile terminal is evaluated, and the first judgment result after the evaluation is obtained. The result is used by the module 20 to report the first decision result to the eNodeB through the measurement report message in the RRC connected state.
  • the evaluation module 10 is further configured to: before the mobile terminal enters the RRC connection state, evaluate the mobile state of the mobile terminal according to the second evaluation parameter sent by the eNodeB through the system broadcast, and obtain the second evaluation result.
  • the result of the decision correspondingly, the result module 20 is further configured to: in the process of establishing the RRC connection by the mobile terminal, by using the RRC connection establishment complete message, the second decision result is sent to £ 1 ⁇ 0 ( ⁇ :6).
  • the result reporting module 20 carries the first decision result by the new cell Mobilitystate in the measurement report message, and carries the second decision result through the new cell Mobilitystate in the RRC connection setup complete message.
  • the present invention provides a mobile terminal and a method for reporting a mobile state, which reports the evaluation result of the UE in the RRC connection state to the eNodeB by using the measurement report message; or the UE in the Idle state.
  • the decision result of the mobile state evaluation in the cell reselection process is reported to the eNodeB through RRC signaling, and provides a reference for the eNodeB to select a related processing policy corresponding to the UE.
  • the evaluation of the mobile state can use the existing configuration parameters, principles and processing procedures in the protocol, and does not bring additional processing overhead to the UE; and the indicator for evaluating the mobile state is the parameter configured by the eNodeB, and the eNodeB can be unified by parameter configuration.
  • the UE and eNodeB recognize the correspondence between high, medium and normal different mobile states and speeds.
  • the eNodeB when the cell handover process is performed, the eNodeB is configured to select the handover target cell of the corresponding speed attribute for the UEs of different mobile states, so as to assist the eNodeB to implement the consistency between the bearer UE type and the cell attribute plan; For the UEs with different mobile states, the frequency selective scheduling and frequency hopping techniques are respectively used to meet the requirements of different channel conditions. In addition, the eNodeB is adapted to adopt different targeted frequency offset correction methods for UEs with different mobile states. The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

本发明公开了一种移动终端上报移动状态的方法,包括: 用户终端(UE)在无线资源控制(RRC)连接状态下根据演进型节点(e Node B)下发的第 一评估参数,对自身的移动状态进行评估,并得到评估后的第一判决结果; UE将第一判决结果通过 RRC连接状态下的测量报告消息上报给eNode B。 本发明还公开了一种移动终端,用以在 RRC连接状态下,将对自身移动状态的判决结果上报给eNode B,使得eNode B能对不同移动状态的UE采取有针对性的不同处理策略,给实际应用带来方便。

Description

移动终端及其上报移动状态的方法 技术领域
本发明涉及移动通信系统中的移动状态评估技术, 尤其涉及一种移动 终端及其上 ^艮移动状态的方法。 背景技术
目前的第三代合作伙伴计划 ( 3GPP, 3rd Generation Partnership Project ) 协议定义了长期演进(LTE, Long Term Evolution )系统中了处于空闲(Idle ) 状态的用户终端( UE, User Equipment )对自身移动状态的判决准则, 以及 各移动状态之间的转化关系, 具体描述如下:
如果 UE在预设的 TCRmax的时间周期内执行小区重选的次数大于设定的 下限次数 NCR_M, 且小于或等于上限次数 NCR_H, 则认为 UE处于中速移动 状态;
如果 UE在预设的 TCRmax的时间周期内执行小区重选的次数大于设定的 NCR_ H , 则认为 UE处于高速移动状态;
如果 UE在预设的 TCRmaxHyst的时间周期内执行小区重选的次数小于或 等于 NCR_M, 则认为 UE处于正常移动状态。
UE检测自身的小区重选次数, 如果满足上述高速移动状态的判决准 则, 则进入高速移动状态; 如果满足上述中速移动状态的判决准则, 则进 入中速移动状态; 如果既不满足高速移动状态的判决准则, 也不满足中速 移动状态的判决准则, 则进入正常移动状态。
上述各判决准则中用到的评估参数是由演进型节点 B( eNodeB , evolved NodeB ) 配置, 并通过系统广播下发给 UE的; UE根据判决准则判断自身 的移动状态后, 将选取对应的小区重选参数执行小区重选。 然而, 由于位 于网络侧的 eNodeB无法获知 UE对自身移动状态的判决结果, 也无法对 UE的移动速度直接进行测量, 因此, 在执行频偏校正、 资源调度、 切换目 标小区等处理时,也就无法对不同移动状态的 UE采取有针对性的不同处理 策略, 从而给实际应用带来不便。 发明内容
有鉴于此, 本发明的主要目的在于提供一种移动终端及其上报移动状 态的方法, 以解决 eNodeB无法获知 UE移动状态的问题。
为达到上述目的, 本发明的技术方案是这样实现的:
本发明提供了一种移动终端上报移动状态的方法, 该方法包括: 用户终端 (UE )在无线资源控制 (RRC ) 连接状态下根据演进型节点
( eNodeB ) 下发的第一评估参数, 对自身的移动状态进行评估, 并得到评 估后的第一判决结果;
所述 UE将第一判决结果通过 RRC连接状态下的测量报告消息上报给 所述 eNodeB。
所述 UE根据第一评估参数对自身的移动状态进行评估并得到第一判 决结果, 具体为:
UE 获取自身分别在预设的第一定时器 t-Evaluation 和第二定时器 t-HystNormal的时间周期内更换小区的次数,并将获取的次数与预设的第一 下限次数 n-CellChangeMedium和第一上限次数 n-CellChangeHigh进行比 较;
如果 UE 在 t-Evaluation 的时间周期内更换小区的次数大于 n-CellChangeMedium , 且小于或等于 n-CellChangeHigh , 则判定 UE处于中 速移动状态;
如果 UE 在 t-Evaluation 的时间周期内更换小区的次数大于 n-CellChangeHigh, 则判定 UE处于高速移动状态; 如果 UE 在 t-HystNormal 的时间周期内更换小区的次数小于或等于 n-CellChangeMedium , 则判定 UE处于正常移动状态。
该方法进一步包括: 所述 UE 通过测量报告消息中的新增信元 Mobilitystate携带所述第一判决结果, 具体为:
如果当前评估得到的第一判决结果为高速移动状态, 则所述
Mobilitystate设置为高 (High );
如果所述当前评估得到的第一判决结果为中速移动状态, 则所述 Mobilitystate设置为中 ( Medium );
如果所述当前评估得到的第一判决结果为正常移动状态, 则所述 Mobilitystate设置为正常 ( Normal )。
该方法进一步包括: 在 UE进入 RRC连接状态之前, UE根据 eNodeB 通过系统广播下发的第二评估参数对自身的移动状态进行评估, 并得到评 估后的第二判决结杲; 所述 UE在进行 RRC连接建立的过程中, 通过 RRC 连接建立完成消息, 将所述第二判决结果上报给 eNodeB。
所述 UE根据第二评估参数对自身的移动状态进行评估并得到第二判 决结果, 具体为:
UE获取自身分别在预设的第三定时器 TCRmax和第四定时器 TCRmaxHyst 的时间周期内执行小区重选的次数, 并将获取的次数与预设的第二下限次 数 NCR_M和第二上限次数 NCR_H进行比较;
如果 UE在 TCRmax的时间周期内执行小区重选的次数大于 NCR_M, 且小 于或等于 NCR_H, 则判定所述 UE处于中速移动状态;
如果 UE在 TCRmax的时间周期内执行小区重选的次数大于 NCR_H, 则判 定所述 UE处于高速移动状态;
如果 UE 在 TCRmaxHyst的时间周期内执行小区重选的次数小于或等于 NCR M, 则判定所述 UE处于正常移动状态。 该方法进一步包括: 所述 UE通过 RRC连接建立完成消息中的新增信 元 Mobilitystate携带所述第二判决结果, 具体为:
如果所述最后一次进行评估得到的第二判决结果为高速移动状态, 则 所述 Mobilitystate设置为 High;
如果所述最后一次进行评估得到的第二判决结果为中速移动状态, 则 所述 Mobilitystate设置为 Medium;
如果所述最后一次进行评估得到的第二判决结果为正常移动状态, 则 所述 Mobilitystate设置为 Normal。
在 UE 将判决结果上报给所述 eNodeB 之后, 该方法还包括: 所述 eNodeB在执行频偏校正、 资源调度、 切换目标小区处理时, 根据所述判决 结果, 对不同移动状态的 UE釆取不同的处理策略。
本发明还提供了一种移动终端, 包括:
评估模块,用于在 RRC连接状态下根据 eNodeB下发的第一评估参数, 对移动终端的移动状态进行评估, 并得到评估后的第一判决结果;
结果上报模块, 用于将所述第一判决结果通过 RRC连接状态下的测量 报告消息上报给所述 eNodeB。
所述评估模块进一步用于, 在移动终端进入 RRC连接状态之前, 根据 eNodeB 通过系统广播下发的第二评估参数对移动终端的移动状态进行评 估, 并得到评估后的第二判决结果;
相应的, 所述结果上报模块进一步用于, 在移动终端进行 RRC连接建 立的过程中, 通过 RRC 连接建立完成消息, 将所述第二判决结果上> ^给 eNodeB。
所述结果上报模块进一步用于, 通过测量报告消息中的新增信元 Mobilitystate携带所述第一判决结果, 通过 RRC连接建立完成消息中的新 增信元 Mobilitystate携带所述第二判决结果。 本发明所提供的一种移动终端及其上报移动状态的方法,将 UE在 RRC 连接状态对自身移动状态的评估结果, 通过测量上报消息上报给 eNodeB; 或者将 Idle状态的 UE在小区重选过程中对移动状态评估的判决结果,通过 RRC信令上报给 eNodeB, 为 eNodeB选择该 UE对应的相关处理策略提供 参考。
移动状态的评估可使用协议中现有的配置参数、 原则和处理过程, 不 会给 UE带来额外的处理开销; 且对移动状态评估的指标是 eNodeB配置的 参数, eNodeB可以通过参数配置来统一 UE和 eNodeB对高、 中、 正常不 同移动状态与速度之间对应关系的认识。
通过本发明, 在执行小区切换处理时, 有利于 eNodeB为不同移动状态 的 UE选取相应速度属性的切换目标小区, 以辅助 eNodeB实现承载 UE类 型与小区属性规划的一致性; 在为 UE分配资源时, 对不同移动状态的 UE 分别选用频率选择性调度和跳频技术以满足不同信道状况的需求; 此外, 有助于 eNodeB对不同移动状态的 UE釆取有针对性的不同频偏校正方法。 附图说明
图 1为本发明一种移动终端上报移动状态的方法的流程图;
图 2为本发明一种移动终端的组成结构示意图。 具体实施方式
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 本发明针对 eNodeB无法获知 UE移动状态的情况, 提出了一种 UE上 报移动状态的方法, 如图 1所示, 主要包括以下步骤:
步骤 101 , UE在无线资源控制 (RRC, Radio Resource Control ) 连接 状态下根据 eNodeB下发的第一评估参数, 对自身的移动状态进行评估, 并 得到评估后的第一判决结果。 UE根据 eNodeB通过 RRC连接重配消息下发的第一评估参数对自身的 移动状态进行评估, 并得到评估后的第一判决结果, 具体包括以下操作:
UE 获取自身分别在预设的第一定时器 t-Evaluation 和第二定时器 t-HystNormal的时间周期内更换小区的次数,并将获取的次数与预设的第一 下限次数 n-CellChangeMedium和第一上限次数 n-CellChangeHigh进行比 较;
如果 UE 在 t-Evaluation 的时间周期内更换小区的次数大于 n-CellChangeMedium , 且小于或等于 n-CellChangeHigh , 则判定 UE处于中 速移动状态;
如果 UE 在 t-Evaluation 的时间周期内更换小区的次数大于 n-CellChangeHigh , 则判定 UE处于高速移动状态;
如果 UE 在 t-HystNormal 的时间周期内更换小区的次数小于或等于 n-CellChangeMedium , 则判定 UE处于正常移动状态。
其中, t-Evaluation和 t-HystNormal的取值可以根据实际需要进行设置, 且 t-Evaluation与 t-HystNormal之间并无大小关系, 当然, 也可取值相等。 而 n-CellChangeHigh的取值要大于 n-CellChangeMedium。
步骤 102 , UE 将第一判决结果通过 RRC 连接状态下的测量报告 ( Measurement Report ) 消息上艮给 eNodeB。
较佳的, UE在 RRC连接状态下, 通过 Measurement Report消息将当 前评估得到的第一判决结果上报给 eNodeB。 进一步的, 在 Measurement Report消息中增设信元 Mobilitystate, 利用 Mobilitystate来携带第一判决结 果, 具体包括以下三种情况:
如果 UE 当前评估得到的第一判决结果为高速移动状态, 则将 Mobilitystate设置为高 (High );
如果 UE 当前评估得到的第一判决结果为中速移动状态, 则将 Mobilitystate设置为中 ( Medium );
如果 UE 当前评估得到的第一判决结果为正常移动状态, 则将 Mobilitystate设置为正常 ( Normal )。
其中, 新增信元 Mobilitystate对应在 3GPP协议中的修改, 具体如下: MeasurementReport :: = SEQUENCE {
criticalExtensions CHOICE {
cl CHOICE{
measurementReport-r8 MeasurementReport-r8-IEs , spare7 NULL,
spare6 NULL, spare5 NULL, spare4 NULL, spare3 NULL, spare2 NULL, spare 1 NULL
criticalExtensionsFuture SEQUENCE { }
Measure mentReport-r8-IEs :: SEQUENCE {
measResults MeasResults ,
nonCriticalExtension SEQUENCE { }
OPTIONAL
MeasResults :: = SEQUENCE {
measld Measld,
measResultServCell SEQUENCE {
rsrpResult RSRP-Range,
rsrqResult RSRQ-Range },
measResultNeighCells CHOICE {
measResultListEUTRA MeasResultListEUTRA, measResultListUTRA MeasResultListUTRA,
measResultListGERAN MeasResultListGERAN, measResultsCDMA2000 MeasResultsCDM A2000 ,
}
OPTIONAL,
}
MeasResultListEUTRA:: = SEQUENCE (SIZE (L.maxCellReport)) OF MeasResultEUTRA
MeasResultEUTRA = SEQUENCE {
physCellld PhysCellld,
cgi-Info SEQUENCE {
cellGloballd CellGloballdEUTRA,
trackingAreaCode TrackingAreaCode ,
plmn-IdentityList PLMN-IdentityList2 OPTIONAL
} OPTIONAL, measResult SEQUENCE {
rsrpResult RSRP-Range
OPTIONAL,
rsrqResult RSRQ-Range
OPTIONAL,
Mobilitystate ENUMERATED { High, Medium,
Normal} OPTIONAL }
}
上述上报移动状态的方法是针对处于连接态的 UE而言,作为本发明的 另一种实施例, 对于 Idle状态下的 UE, 则可以在 UE进入 RRC连接状态 之前,根据 eNodeB通过系统广播下发的第二评估参数对自身的移动状态进 行评估, 并得到评估后的第二判决结果; 进而在进行 RRC连接建立的过程 中, 通过 RRC连接建立完成( RRC Connection Setup Complete ) 消息, 将 第二判决结果上报给 eNodeB。
UE根据第二评估参数对自身的移动状态进行评估, 并得到评估后的第 二判决结果, 具体包括以下操作:
UE获取自身分别在预设的第三定时器 TCRmax和第四定时器 TCRmaxHyst 的时间周期内执行小区重选的次数, 并将获取的次数与预设的第二下限次 数 NCR_M和第二上限次数 NCR_H进行比较;
如果 UE在 TCRmax的时间周期内执行小区重选的次数大于 NCR_M, 且小 于或等于 NCR_H, 则判定 UE处于中速移动状态;
如果 UE 在 TCRmax的时间周期内执行小区重选的次数大于上限次数 NCR_H, 则判定 UE处于高速移动状态;
如果 UE 在 TCRmaxHyst的时间周期内执行小区重选的次数小于或等于 NCR_M, 则判定 UE处于正常移动状态。
其中, TCRmax和 TCRmaxHyst的取值可以根据实际需要进行设置, 且 TCRmax 与 TCRmaxHyst之间并无大小关系, 当然, 也可取值相等。 而 NCR_H的取值要 大于 NCR— M。
较佳的, UE可以进行 RRC连接建立的过程中, 通过 RRC Connection Setup Complete消息,将最后一次进行评估得到的判决结果上报给 eNodeB。 进一步的, 可以通过在 RRC Connection Setup Complete 消息中增设信元 Mobilitystate, 利用 Mobilitystate来携带第二判决结果, 具体包括以下三种 情况:
如果 UE最后一次进行评估得到的第二判决结果为高速移动状态,则将 Mobilitystate设置为 High;
如果 UE最后一次进行评估得到的第二判决结果为中速移动状态,则将 Mobilitystate设置为 Medium;
如果 UE最后一次进行评估得到的第二判决结果为正常移动状态,则将 Mobilitystate设置为 Normal。
其中 , 新增信元 Mobilitystate对应在 3GPP协议中的修改, 具体如下: - ASN1 START
RRCConnectionSetupComplete:: = SEQUENCE{
rrc-Transactionldentifier RRC-Transactionldentifier,
criticalExtensions CHOICE {
cl CHOICE{
rrcConnectionSetupComplete-r8
RCConnectionSetupComplete-r8-IEs,
spare3 NULL, spare2 NULL, spare 1 NULL
criticalExtens ions Future SEQUENCE { }
}
}
RRCConnectionSetupComplete-r8-Ies: :=SEQUENCE{
selectedPLMN-Identity INTEGER ( 1...6 ),
registeredMME RegisteredMME
OPTIONAL,
dedicatedlnfoNAS DedicatedlnfoNAS ,
Mobilitystate ENUMERATED { High, Medium, Normal} OPTIONAL
nonCriticalExtension SEQUENCE { }
OPTIONAL
}
RegisteredMME: = SEQUENCE {
plmn-Identity PLMN-Identity OPTIONAL,
mmegi BIT STRING ( SIZE ( 16 ) ),
mmec MMEC
}
- ASN1STOP
需要指出的是, 上述在 RRC连接建立的过程中的移动状态上报方法, 以及在 RRC连接状态下的移动状态上报方法, 既可以独立使用, 也可以相 结合使用。
UE将判决结果 (包括第一判决结果和第二判决结果) 上报给 eNodeB 后, eNodeB在执行频偏校正、 资源调度、 切换目标小区等处理时, 就可以 根据该判决结果, 对不同移动状态的 UE采取不同的处理策略。 例如: 如果 UE在 Idle状态下判断自身的移动状态为高速移动状态,并且 UE建立 RRC 连接将自身的移动状态上报给 eNodeB, 则 eNodeB根据 UE上报的 RRC Connection Setup Complete消息中的信元 Mobilitystate, 获知 UE处于高速 移动状态,进而在使用频率选择性调度已经不能满足 UE信道的情况下,对 该 UE使用跳频技术; 如果该 UE发生切换, 则 eNodeB选择高速小区作为 切换的目标小区; 并且对该 UE选择使用纠正大频偏的策略估计和纠正频 偏。
为实现上述的移动终端上报移动状态的方法, 本发明还提供了一种移 动终端, 如图 2所示, 包括: 评估模块 10和结果上报模块 20。 其中, 评估 模块 10, 用于在 RRC连接状态下根据 eNodeB下发的第一评估参数, 对移 动终端的移动状态进行评估, 并得到评估后的第一判决结果。 结果上 ^艮模 块 20, 用于将第一判决结果通过 RRC 连接状态下的测量报告消息上报给 eNodeB。
较佳的, 评估模块 10进一步用于, 在移动终端进入 RRC连接状态之 前,才艮据 eNodeB通过系统广播下发的第二评估参数对移动终端的移动状态 进行评估, 并得到评估后的第二判决结果; 相应的, 结果上 模块 20进一 步用于, 在移动终端进行 RRC连接建立的过程中, 通过 RRC连接建立完 成消息, 将第二判决结果上 4艮给£1^0(^:6。
结果上报模块 20通过测量报告消息中的新增信元 Mobilitystate携带第 一判决结果, 通过 RRC连接建立完成消息中的新增信元 Mobilitystate携带 第二判决结果。
综上所述, 本发明所提供的一种移动终端及其上报移动状态的方法, 将 UE在 RRC连接状态对自身移动状态的评估结果, 通过测量上报消息上 报给 eNodeB; 或者将 Idle状态的 UE在小区重选过程中对移动状态评估的 判决结果, 通过 RRC信令上报给 eNodeB , 为 eNodeB选择该 UE对应的相 关处理策略提供参考。
移动状态的评估可使用协议中现有的配置参数、 原则和处理过程, 不 会给 UE带来额外的处理开销; 且对移动状态评估的指标是 eNodeB配置的 参数, eNodeB可以通过参数配置来统一 UE和 eNodeB对高、 中、 正常不 同移动状态与速度之间对应关系的认识。
通过本发明, 在执行小区切换处理时, 有利于 eNodeB为不同移动状态 的 UE选取相应速度属性的切换目标小区, 以辅助 eNodeB实现承载 UE类 型与小区属性规划的一致性; 在为 UE分配资源时, 对不同移动状态的 UE 分别选用频率选择性调度和跳频技术以满足不同信道状况的需求; 此外, 有助于 eNodeB对不同移动状态的 UE采取有针对性的不同频偏校正方法。 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。

Claims

权利要求书
1、 一种移动终端上> ^移动状态的方法, 其特征在于, 该方法包括: 用户终端 (UE )在无线资源控制 (RRC ) 连接状态下根据演进型节点 ( eNodeB ) 下发的第一评估参数, 对自身的移动状态进行评估, 并得到评 估后的第一判决结果;
所述 UE将第一判决结果通过 RRC连接状态下的测量报告消息上报给 所述 eNodeB。
2、 根据权利要求 1所述移动终端上报移动状态的方法, 其特征在于, 所述 UE才艮据第一评估参数对自身的移动状态进行评估并得到第一判决结 果, 具体为:
UE 获取自身分别在预设的第一定时器 t-Evaluation 和第二定时器 t-HystNormal的时间周期内更换小区的次数 ,并将获取的次数与预设的第一 下限次数 n-CellChangeMedium和第一上限次数 n-CellChangeHigh进行比 较;
如果 UE 在 t-Evaluation 的时间周期内更换小区的次数大于 n-CellChangeMedium , 且小于或等于 n-CellChangeHigh , 则判定 UE处于中 速移动状态;
如果 UE 在 t-Evaluation 的时间周期内更换小区的次数大于 n-CellChangeHigh , 则判定 UE处于高速移动状态;
如果 UE 在 t-HystNormal 的时间周期内更换小区的次数小于或等于 n-CellChangeMedium, 则判定 UE处于正常移动状态。
3、 根据权利要求 1或 2所述移动终端上报移动状态的方法, 其特征在 于, 该方法进一步包括: 所述 UE 通过测量报告消息中的新增信元 Mobilitystate携带所述第一判决结果, 具体为:
如果当前评估得到的第一判决结果为高速移动状态, 则所述 Mobilitystate设置为高 (High );
如果所述当前评估得到的第一判决结果为中速移动状态, 则所述 Mobilitystate设置为中 ( Medium );
如果所述当前评估得到的第一判决结果为正常移动状态, 则所述 Mobilitystate设置为正常 ( Normal )。
4、 根据权利要求 1所述移动终端上报移动状态的方法, 其特征在于, 该方法进一步包括: 在 UE进入 RRC连接状态之前, UE根据 eNodeB通过 系统广播下发的第二评估参数对自身的移动状态进行评估, 并得到评估后 的第二判决结果; 所述 UE在进行 RRC连接建立的过程中,通过 RRC连接 建立完成消息, 将所述第二判决结果上 4艮给 eNodeB。
5、 根据权利要求 4所述移动终端上报移动状态的方法, 其特征在于, 所述 UE才艮据第二评估参数对自身的移动状态进行评估并得到第二判决结 果, 具体为:
UE获取自身分别在预设的第三定时器 TCRmax和第四定时器 TCRmaxHyst 的时间周期内执行小区重选的次数, 并将获取的次数与预设的第二下限次 数 NCR_M和第二上限次数 NCR_H进行比较;
如果 UE在 TCRmax的时间周期内执行小区重选的次数大于 NCR_M, 且小 于或等于 NCR_H, 则判定所述 UE处于中速移动状态;
如果 UE在 TCRmax的时间周期内执行小区重选的次数大于 NCR_H, 则判 定所述 UE处于高速移动状态;
如果 UE 在 TCRmaxHyst的时间周期内执行小区重选的次数小于或等于 NCR_M, 则判定所述 UE处于正常移动状态。
6、 根据权利要求 4或 5所述移动终端上报移动状态的方法, 其特征在 于, 该方法进一步包括: 所述 UE通过 RRC连接建立完成消息中的新增信 元 Mobilitystate携带所述第二判决结果, 具体为: 如果所述最后一次进行评估得到的第二判决结果为高速移动状态, 则 所述 Mobility state设置为 High;
如果所述最后一次进行评估得到的第二判决结果为中速移动状态, 则 所述 Mobilitystate设置为 Medium;
如果所述最后一次进行评估得到的第二判决结果为正常移动状态, 则 所述 Mobilitystate设置为 Normal。
7、 根据权利要求 1或 4所述移动终端上报移动状态的方法, 其特征在 于,在 UE将判决结果上报给所述 eNodeB之后,该方法还包括:所述 eNodeB 在执行频偏校正、 资源调度、 切换目标小区处理时, 根据所述判决结果, 对不同移动状态的 UE采取不同的处理策略。
8、 一种移动终端, 其特征在于, 包括:
评估模块,用于在 RRC连接状态下根据 eNodeB下发的第一评估参数, 对移动终端的移动状态进行评估, 并得到评估后的第一判决结果;
结果上报模块, 用于将所述第一判决结果通过 RRC连接状态下的测量 报告消息上报给所述 eNodeB。
9、 根据权利要求 8所述移动终端, 其特征在于, 所述评估模块进一步 用于, 在移动终端进入 RRC连接状态之前, 根据 eNodeB通过系统广播下 发的第二评估参数对移动终端的移动状态进行评估, 并得到评估后的第二 判决结果;
相应的, 所述结果上报模块进一步用于, 在移动终端进行 RRC连接建 立的过程中, 通过 RRC 连接建立完成消息, 将所述第二判决结果上> ^给 eNodeB。
10、 根据权利要求 8或 9所述移动终端, 其特征在于, 所述结果上 报模块进一步用于,通过测量报告消息中的新增信元 Mobilitystate携带所 述第一判决结果,通过 RRC连接建立完成消息中的新增信元 Mobilitystate 携带所述第二判决结果。
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