WO2011017898A1 - 一种长期演进网络定位中切换时的处理方法及系统 - Google Patents

一种长期演进网络定位中切换时的处理方法及系统 Download PDF

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Publication number
WO2011017898A1
WO2011017898A1 PCT/CN2009/076265 CN2009076265W WO2011017898A1 WO 2011017898 A1 WO2011017898 A1 WO 2011017898A1 CN 2009076265 W CN2009076265 W CN 2009076265W WO 2011017898 A1 WO2011017898 A1 WO 2011017898A1
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positioning
enb
smlc
control signaling
termination
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PCT/CN2009/076265
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English (en)
French (fr)
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黄波
吴昊
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中兴通讯股份有限公司
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Publication of WO2011017898A1 publication Critical patent/WO2011017898A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements

Definitions

  • the present invention relates to mobile communication technologies, and in particular to a processing method and system for handover in network positioning in Long Term Evolution (LTE). Background technique
  • the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) launched the radio access network LTE project in December 2004, E-UTRA, Evolved-UTRA, Evolved Universal Telecommunication Radio Access) technology and evolved radio access network (E-UTRAN, Evolved-UTRAN, Evolved Universal Terrestrial Radio Access Network), and all-IP packet domain core network evolution project system architecture evolution (SAE, System Architecture Evolution), It hopes to provide better support for the growing needs of operators and users through continuous evolution and enhancement from the wireless interface to the core network, and to maintain the technical first-mover advantage in the field of mobile communication in the next 10 years or even longer. .
  • SAE System Architecture Evolution
  • Location Services is a new type of value-added service provided by mobile communication networks.
  • the location service obtains location information related to the mobile terminal by using wireless location technology, such as latitude and longitude, moving speed, etc., to provide the user of the mobile terminal, the mobile communication network, or other external entities to implement various location-related services.
  • the mobile terminal can measure the satellite signal by measuring the serving cell or the neighboring cell or by using a built-in positioning module to obtain data for calculating the current location of the mobile terminal.
  • LTP LTE Positioning Protocol
  • LTE Positioning Protocol LTE Positioning Protocol
  • the originator of the location request may be a terminal, a network, or a third party with authority.
  • a locating service eNB, evolved NodeB
  • UE User Equipment
  • the main purpose of the present invention is to provide a processing method and system for handover in a long-term evolution network positioning, and provide specific processing when a UE performs handover in a process in which an eNB initiates a positioning service.
  • a processing method for handover in long-term evolution (LTE) network positioning including: when an evolved base station (eNB) initiates a positioning service, when determining that a user equipment (UE) needs to perform handover, moving the location center to an enhanced service (E) -SMLC) transmitting positioning control signaling including a termination positioning request;
  • eNB evolved base station
  • E enhanced service
  • the E-SMLC After receiving the positioning control signaling including the termination positioning request, the E-SMLC instructs the eNB or the UE to terminate the positioning process.
  • the positioning control signaling including the termination positioning request is:
  • the positioning control signaling includes a message field for terminating the positioning request
  • a message field indicating the termination of the positioning request is added to the existing positioning control signaling based on the positioning protocol.
  • the specific implementation of the eNB to terminate the positioning process is: a positioning control signaling newly added based on the positioning protocol, where the positioning control signaling includes a message field for terminating the positioning process; or, the existing positioning control signaling based on the positioning protocol Add a message field indicating the termination of the positioning process;
  • the specific implementation of instructing the UE to terminate the positioning process is: a newly added one based on the positioning protocol Positioning control signaling, the positioning control signaling includes a message field for terminating the positioning process; or adding a message field indicating the termination of the positioning process to the existing positioning control signaling based on the positioning protocol.
  • the method further includes: the eNB sending a handover request to the target eNB, performing handover processing of the UE; and/or,
  • the method further includes: determining, by the E-SMLC, a positioning method used by the current positioning process, or a positioning method based on the UE.
  • the method further includes: the eNB stops the positioning related measurement, and the eNB, and the E-SMLC releases the positioning related resource;
  • the method further includes: the UE stops the positioning related measurement and reporting process, and the UE and the E-SMLC release the positioning related resources.
  • a processing system for switching in LTE network positioning comprising:
  • the eNB in the process of initiating the positioning service request, is configured to send, to the E-SMLC, the positioning control signaling that includes the termination positioning request, when the UE needs to perform the handover;
  • the E-SMLC after receiving the positioning control signaling including the termination positioning request, instructs the eNB or the UE to terminate the positioning process.
  • the eNB After receiving the indication of the termination of the positioning process, the eNB is further configured to stop the positioning related measurement and reporting process, and release the positioning related resource; the E-SMLC is further used to release the positioning related resource;
  • the UE After receiving the indication of the termination of the positioning process, the UE is further configured to stop the positioning related measurement and reporting process, and release the positioning related resource; the E-SMLC is further used to release the positioning related resource.
  • the eNB is further configured to send a handover request to the target eNB, and perform handover processing of the UE.
  • a processing method for switching in LTE network positioning includes: When the eNB or the mobility management entity (MME) does not receive the location service response, it determines that the UE has a handover, and notifies the E-SMLC UE that the handover occurs;
  • MME mobility management entity
  • the E-SMLC instructs the eNB or the UE to terminate the positioning process according to the received notification.
  • the specific implementation of the eNB notifying the E-SMLC UE that the handover is performed is: a positioning control signaling newly added based on the positioning protocol, where the positioning control signaling includes a message field of the UE handover notification; or, in the existing positioning based on the positioning protocol Adding a message field indicating the UE handover notification to the control signaling;
  • the specific implementation of the MME notifying the E-SMLC UE to switch is: adding a port switching flag in the control signaling.
  • the specific implementation of the eNB to terminate the positioning process is: a positioning control signaling newly added based on the positioning protocol, where the positioning control signaling includes a message field for terminating the positioning process; or, the existing positioning control signaling based on the positioning protocol Add a message field indicating the termination of the positioning process;
  • the specific implementation of the UE to terminate the positioning process is: a positioning control signaling newly added based on the positioning protocol, where the positioning control signaling includes a message field for terminating the positioning process; or, the existing positioning control signaling based on the positioning protocol Add a message field indicating the termination of the positioning process.
  • the method further includes: determining, by the E-SMLC, a positioning method used by the current positioning process, or a positioning method based on the UE.
  • the method further includes: the eNB stops the positioning related measurement, and the eNB, and the E-SMLC releases the positioning related resource;
  • the method further includes: the UE stops the positioning related measurement and reporting process, and the UE and the E-SMLC release the positioning related resources.
  • a processing system for handover in LTE network positioning comprising: an eNB, an MME, and an E-SMLC, Or UE, MME, and E-SMLC, or UE, eNB, and E-SMLC, or eNB and E-SMLC, where
  • the eNB or the MME is configured to determine that the UE has a handover when the positioning service response is not received, and notify the E-SMLC UE to switch;
  • the E-SMLC is configured to instruct the eNB or the UE to terminate the positioning process according to the received notification. After receiving the indication of the termination of the positioning process, the eNB is further configured to stop the positioning related measurement and reporting process, and release the positioning related resource; the E-SMLC is further used to release the positioning related resource;
  • the UE After receiving the indication of the termination of the positioning process, the UE is further configured to stop the positioning related measurement and reporting process, and release the positioning related resource; the E-SMLC is further used to release the positioning related resource.
  • the UE when the eNB initiates the location service, when the UE needs to perform the handover, the UE may send the location control signaling including the termination location request to the E-SMLC in time or notify the E-SMLC UE to switch; or After the eNB or the MME sends the location service request to the E-SMLC, if the UE determines that the handover occurs when the location service response is not received, the eNB or the MME may also notify the E-SMLC UE to perform the handover, and terminate the unnecessary positioning process to avoid the positioning process. It is a waste of locating resources.
  • FIG. 1 is a flowchart of an eNB initiating a positioning service
  • FIG. 2 is a flowchart of a specific embodiment of a UE when a handover occurs in a UE in a process of initiating a location service according to the present invention
  • FIG. 3 is a flowchart of Embodiment 2 of the specific embodiment of the present invention when the UE initiates a handover in the process of initiating a positioning service.
  • 1 is a flowchart of an eNB initiating a locating service. As shown in FIG. 1 , in an LTE network, a positioning process performed by an eNB as a locating service initiator includes:
  • Step 101 The eNB sends a Location Service Request to the Mobility Management Entity (MME) to initiate positioning of the UE.
  • MME Mobility Management Entity
  • Step 102 After receiving the positioning service request from the eNB, the MME forwards the positioning service request to an Enhanced Serving Mobile Location Centre (E-SMLC).
  • E-SMLC Enhanced Serving Mobile Location Centre
  • Step 103a After receiving the positioning service request, the E-SMLC performs positioning processing (eNB Procedures) that interacts with the eNB, such as acquiring positioning measurement data or positioning auxiliary data.
  • eNB Procedures positioning processing
  • Step 103b In addition to or instead of the step 103a, the E-SMLC may perform positioning procedures (UE Procedures) for interacting with the UE, such as acquiring location estimation or positioning measurement, or transmitting positioning assistance data to the UE, and the UE according to the received positioning assistance.
  • the data is used for position estimation or positioning measurements.
  • Step 104 After the positioning of the UE is completed, the E-SMLC sends a location service response (Location Service Response) to the MME, where the positioning service response carries the positioning result of the UE.
  • a location service response Lication Service Response
  • Step 105 After receiving the locating service response, the MME forwards the location service response carrying the positioning result of the UE to the eNode B.
  • the eNB is the initiator of the positioning service, mainly to understand the signal condition of the current cell, so as to perform network optimization. If the UE needs to perform the handover at this time, the positioning result of the UE obtained by the source eNB to initiate the positioning service does not have any meaning for the source eNB, and the subsequent positioning process should be terminated in time.
  • the eNB when the eNB initiates the location service, it determines that the UE needs to perform the handover, and sends the location control signaling including the termination location request to the E-SMLC; after the E-SMLC receives the location control signaling including the termination location request, Perform corresponding processing according to the positioning method used by the current positioning process, that is, if the network-based positioning method is used, that is, the UE does not participate in the positioning process.
  • the signaling interaction indicates that the eNB terminates the positioning process; if the UE-based positioning method is used, that is, the UE participates in the positioning measurement and reporting process, the UE is instructed to terminate the positioning process; if the current positioning method is not selected, the eNB is instructed to terminate the positioning process. Just fine.
  • FIG. 2 is a flowchart of a specific embodiment of a UE when a eNB initiates a locating service in the process of the eNB, and as shown in FIG. 2, the specific processing process includes:
  • Step 201 to step 202 The eNB sends a positioning service request to the E-SMLC through the MME, and initiates positioning of the UE. Before the eNB receives the positioning response, the UE reports the measurement report, and the eNB, that is, the source eNB determines that the UE needs to perform handover.
  • Step 203 Since the eNB has previously initiated the positioning of the UE, but has not received the positioning response, it is required to terminate the positioning process, and send a termination request request to the E-SMLC through a positioning protocol, such as LPPa (LTE Positioning Protocol). Positioning control signaling.
  • LPPa LTE Positioning Protocol
  • the positioning control signaling including the termination positioning request may be a positioning control signaling newly added based on the positioning protocol, where the positioning control signaling includes a message field for terminating the positioning request; and the existing positioning control signaling of the positioning protocol may also be utilized. A message field indicating termination of the positioning request is added to the existing positioning control signaling based on the positioning protocol.
  • the E-SMLC After receiving the positioning control signaling including the termination positioning request, the E-SMLC performs corresponding processing according to the positioning method used by the current positioning process. If the network-based positioning method is used, that is, the positioning signaling interaction of the UE does not participate in the positioning process, the execution is performed. Step 204a, the E-SMLC instructs the eNB to terminate the positioning process; if the UE-based positioning method is used, that is, the UE participates in the positioning measurement and reporting process, step 204b is performed, and the E-SMLC instructs the UE to terminate the positioning process; if the current positioning method is not selected If yes, step 204a is performed, and the E-SMLC instructs the eNB to terminate the positioning process.
  • Step 204a The E-SMLC instructs the eNB to terminate the positioning process.
  • the specific implementation of instructing the eNB to terminate the positioning process may be based on a positioning protocol, such as a newly added positioning control signaling of the LPPa, the positioning control signaling includes a message field for terminating the positioning process; and may also utilize existing positioning control based on the positioning protocol Signaling, based on location-based protocols A message field indicating that the positioning process is terminated is added to the positioning control signaling.
  • a positioning protocol such as a newly added positioning control signaling of the LPPa
  • the positioning control signaling includes a message field for terminating the positioning process
  • a message field indicating that the positioning process is terminated is added to the positioning control signaling.
  • Step 204b Alternatively, the E-SMLC instructs the UE to terminate the positioning process.
  • the specific implementation of the UE to terminate the positioning process may be based on a positioning protocol, such as a new positioning control signaling added by the LPP, the positioning control signaling includes a message field for terminating the positioning process; and the existing positioning control based on the positioning protocol may also be utilized. Signaling, adding a message field indicating the termination of the positioning process to the existing positioning control signaling based on the positioning protocol.
  • a positioning protocol such as a new positioning control signaling added by the LPP
  • the positioning control signaling includes a message field for terminating the positioning process
  • the existing positioning control based on the positioning protocol may also be utilized. Signaling, adding a message field indicating the termination of the positioning process to the existing positioning control signaling based on the positioning protocol.
  • Step 205 The source eNB sends a handover request to the target eNB, and performs handover processing of the UE.
  • the above-mentioned LPP is a positioning protocol followed by the interaction information between the UE and the E-SMLC in the LTE;
  • the LPPa is a positioning protocol followed by the interaction information between the eNB and the E-SMLC in the LTE.
  • FIG. 3 is a flowchart of Embodiment 2 of the second embodiment of the present invention, in which the UE performs the handover process in the process of the eNB initiating the locating service, as shown in FIG. 3, the specific processing process includes:
  • Step 301 to step 302 The eNB sends a positioning service request to the E-SMLC through the MME, and initiates positioning of the UE. Before the eNB receives the positioning response, the UE reports the measurement report, and the eNB, that is, the source eNB determines that the UE needs to perform handover.
  • Step 303 The source eNB sends a handover request to the target eNB, and performs handover processing of the UE.
  • step 203 The specific implementation of the positioning control signaling including the termination positioning request is the same as that in step 203, and details are not described herein again.
  • the E-SMLC After receiving the positioning control signaling including the termination positioning request, the E-SMLC performs corresponding processing according to the positioning method used by the current positioning process. If the network-based positioning method is used, that is, the UE If the positioning signaling interaction does not participate in the positioning process, step 305a is performed, and the E-SMLC instructs the eNB to terminate the positioning process. If the UE is used in the positioning measurement and reporting process, the UE performs the step 305b, E-SMLC. Instructing the UE to terminate the positioning process; if the current positioning method is not selected, performing step 305a, the E-SMLC instructing the eNB to terminate the positioning process.
  • Step 305a The E-SMLC instructs the eNB to terminate the positioning process.
  • Step 305b Alternatively, the E-SMLC instructs the UE to terminate the positioning process.
  • Step 306 After receiving the indication of the termination of the positioning process, the source eNB or the UE stops the positioning related measurement and the process of the previous process, and the UE, the eNB, and the E-SMLC release the positioning related resources, and the positioning process ends.
  • the eNB or the MME may also notify the E-SMLC UE to switch; the E-SMLC receives the handover. After the notification, the eNB or the UE is instructed to terminate the positioning process.
  • the system provided in the present invention includes: an eNB and an E-SMLC, or a UE, an eNB, and an E-SMLC, where the eNB initiates a location service, and when determining that the UE needs to perform handover, the method for sending the termination to the E-SMLC is included.
  • the requested positioning control signaling is used by the E-SMLC to instruct the eNB or the UE to terminate the positioning process after receiving the positioning control signaling including the termination positioning request.
  • the eNB After receiving the indication of the termination of the positioning process, the eNB is also used to stop the positioning related measurement and reporting process, and release the positioning related resources; the E-SMLC is further used to release the positioning related resources.
  • the UE After receiving the indication of the termination of the positioning process, the UE is also used to stop the positioning related measurement and reporting process, and release the positioning related resources; the E-SMLC is further used to release the positioning related resources.
  • the source eNB is further configured to send a handover request to the target eNB, and perform handover processing of the UE.
  • the eNB may not send the positioning control signaling including the termination positioning request to the E-SMLC, but after the eNB or the MME sends the positioning service request to the E-SMLC, if it is not received.
  • the eNB or the MME is configured to notify the E-SMLC UE of the handover when the locating service responds, and the E-SMLC is configured to instruct the eNB or the UE to terminate the positioning process after receiving the notification.
  • the eNB may notify the E-SMLC that the handover may be implemented based on a positioning protocol, such as an LPPa.
  • a positioning protocol such as an LPPa.
  • the specific implementation may be: a positioning control signaling newly added based on the positioning protocol, where the positioning control signaling includes a message field of the UE handover notification; A message field indicating a UE handover notification may be added to the existing positioning control signaling based on the positioning protocol by using the existing positioning control signaling based on the positioning protocol.
  • the MME notifies the E-SMLC that the handover can be implemented by adding a handover flag bit in the control signaling, such as a status update message.
  • the positioning method used by the E-SMLC according to the current positioning process is also processed using a network-based positioning method or a UE-based positioning method.
  • the system corresponding to the foregoing processing manner includes: an eNB, an MME, and an E-SMLC, or a UE, an MME, and an E-SMLC, or a UE, an eNB, and an E-SMLC, or an eNB and an E-SMLC.
  • the eNB or the MME is configured to notify the E-SMLC UE to perform handover when the UE does not receive the location service response, and the E-SMLC is configured to instruct the eNB or the UE to terminate the positioning process according to the received notification.
  • the eNB After receiving the indication of the termination of the positioning process, the eNB is also used to stop the positioning related measurement and reporting process, and release the positioning related resources; the E-SMLC is further used to release the positioning related resources.
  • the UE After receiving the indication of the termination of the positioning process, the UE is also used to stop the positioning related measurement and reporting process, and release the positioning related resources; the E-SMLC is further used to release the positioning related resources.

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Abstract

本发明公开了一种长期演进网络中,定位业务进行过程中切换时的处理方法及系统。本发明方案中,eNB发起定位业务请求的过程中,判定UE需要进行切换时,向E-SMLC发送包含终止定位请求的定位控制信令;E-SMLC收到包含终止定位请求的定位控制信令后,指示eNB或UE终止定位过程;或者,eNB或MME向E-SMLC发送定位业务请求后,如果在未收到定位业务响应时确定UE发生切换,通知E-SMLC UE发生切换,E-SMLC指示eNB或UE终止定位过程。根据本发明提供的方案,能够及时终止定位过程,避免对定位资源造成浪费。

Description

一种长期演进网络定位中切换时的处理方法及系统 技术领域
本发明涉及移动通信技术, 特别是指一种长期演进(LTE, Long Term Evolution ) 网络定位中切换时的处理方法及系统。 背景技术
目前, 随着移动通信技术的不断发展, 越来越面临着为用户提供更高 的数据速率、 为网络提供更好的覆盖和更大的容量的问题。
为了解决上述问题, 第三代合作伙伴计划 (3GPP , 3rd Generation Partnership Project )在 2004年 12月启动了无线接入网 LTE项目,演进的无 线接入 ( E-UTRA , Evolved-UTRA , Evolved Universal Telecommunication Radio Access )技术和演进的无线接入网络(E-UTRAN, Evolved-UTRAN, Evolved Universal Terrestrial Radio Access Network )、 以及面向全 IP的分组 域核心网演进项目系统架构演进 ( SAE, System Architecture Evolution ), 希 望通过从无线接口到核心网络的持续演进和增强, 为运营商和用户不断增 长的需求提供更好的支持, 在今后 10年甚至更长的时间, 一直保持在移动 通信领域的技术先发优势。
定位业务(LCS, Location Services )是移动通信网所提供的一种新型 增值业务。 定位业务通过无线定位技术来获得移动终端的位置信息, 如经 纬度、 移动速度等, 以提供给移动终端的用户本人、 移动通信网络或者其 他外部实体, 实现各种与位置相关的业务。
移动终端可以通过对服务小区或相邻小区的测量, 或者通过内置的定 位模块对卫星信号进行测量, 以获得用于计算该移动终端当前位置的数据。 为了在 LTE网络中支持定位业务, 引入了新的协议: LTE定位协议( LPP, LTE Positioning Protocol )。
定位请求的发起方可以是终端、 网络或者有权限的第三方。 在演进基 站(eNB, evolved NodeB )发起定位业务的过程中, 如果用户设备( UE, User Equipment )发生切换, 应该如何处理, 目前还未提出相关实现方案。 发明内容
有鉴于此, 本发明的主要目的在于提供一种长期演进网络定位中切换 时的处理方法及系统, 提供 eNB发起定位业务的过程中, UE发生切换时 的具体处理。
为解决上述技术问题, 本发明的技术方案是这样实现的:
一种长期演进(LTE ) 网络定位中切换时的处理方法, 包括: 演进基站 (eNB )发起定位业务的过程中, 判定用户设备 ( UE ) 需要 进行切换时, 向增强型服务移动位置中心(E-SMLC )发送包含终止定位请 求的定位控制信令;
E-SMLC收到包含终止定位请求的定位控制信令后, 指示 eNB或 UE 终止定位过程。
所述包含终止定位请求的定位控制信令是:
基于定位协议新增加的一条定位控制信令, 该定位控制信令包含终止 定位请求的消息字段; 或者,
在基于定位协议的现有定位控制信令中增加一个表示终止定位请求的 消息字段。
所述指示 eNB终止定位过程的具体实现为: 基于定位协议新增加的一 条定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 或者, 在基于定位协议的现有定位控制信令中增加一个表示终止定位过程的消息 字段;
所述指示 UE终止定位过程的具体实现为:基于定位协议新增加的一条 定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 或者, 在 基于定位协议的现有定位控制信令中增加一个表示终止定位过程的消息字 段。
所述判定 UE需要进行切换时, 进一步包括: eNB向目标 eNB发送切 换请求, 进行 UE的切换处理; 和 /或,
所述指示 eNB或 UE终止定位过程之前, 进一步包括: E-SMLC确定 当前定位过程使用的定位方法^ ^于网络的定位方法、还是基于 UE的定位 方法。
所述指示 eNB终止定位过程之后, 进一步包括: eNB停止定位相关的 测量、 上4艮过程, eNB, E-SMLC释放定位相关资源;
所述指示 UE终止定位过程之后, 进一步包括: UE停止定位相关的测 量、 上报过程, UE、 E-SMLC释放定位相关资源。
一种 LTE网络定位中切换时的处理系统, 包括:
eNB, 发起定位业务请求的过程中, 判定 UE需要进行切换时, 用于向 E-SMLC发送包含终止定位请求的定位控制信令;
E-SMLC, 用于收到包含终止定位请求的定位控制信令后, 指示 eNB 或 UE终止定位过程。
所述 eNB收到终止定位过程的指示后, 进一步用于停止定位相关的测 量、 上报过程, 释放定位相关资源; 所述 E-SMLC进一步用于释放定位相 关资源;
所述 UE 收到终止定位过程的指示后, 进一步用于停止定位相关的测 量、 上报过程, 释放定位相关资源; 所述 E-SMLC进一步用于释放定位相 关资源。
所述 eNB进一步用于向目标 eNB发送切换请求,进行 UE的切换处理。 一种 LTE网络定位中切换时的处理方法, 包括: eNB或移动管理实体 ( MME ) 未收到定位业务响应时确定 UE发生切 换, 通知 E-SMLC UE发生切换;
E-SMLC根据收到的通知, 指示 eNB或者 UE终止定位过程。
所述 eNB通知 E-SMLC UE发生切换的具体实现为: 基于定位协议新 增加的一条定位控制信令, 该定位控制信令包含 UE切换通知的消息字段; 或者,在基于定位协议的现有定位控制信令中增加一个表示 UE切换通知的 消息字段;
所述 MME通知 E-SMLC UE发生切换的具体实现为:在控制信令中增 力口切换标志位。
所述指示 eNB终止定位过程的具体实现为: 基于定位协议新增加的一 条定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 或者, 在基于定位协议的现有定位控制信令中增加一个表示终止定位过程的消息 字段;
所述指示 UE终止定位过程的具体实现为:基于定位协议新增加的一条 定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 或者, 在 基于定位协议的现有定位控制信令中增加一个表示终止定位过程的消息字 段。
所述指示 eNB或 UE终止定位过程之前, 进一步包括: E-SMLC确定 当前定位过程使用的定位方法^ ^于网络的定位方法、还是基于 UE的定位 方法。
所述指示 eNB终止定位过程之后, 进一步包括: eNB停止定位相关的 测量、 上4艮过程, eNB, E-SMLC释放定位相关资源;
所述指示 UE终止定位过程之后, 进一步包括: UE停止定位相关的测 量、 上报过程, UE、 E-SMLC释放定位相关资源。
一种 LTE网络定位中切换时的处理系统,包括: eNB、 MME和 E-SMLC , 或 UE、 MME和 E-SMLC, 或 UE、 eNB和 E-SMLC, 或 eNB和 E-SMLC, 其中,
所述 eNB 或 MME用于未收到定位业务响应时确定 UE发生切换, 通 知 E-SMLC UE发生切换;
所述 E-SMLC用于根据收到的通知,指示 eNB或者 UE终止定位过程。 所述 eNB收到终止定位过程的指示后, 进一步用于停止定位相关的测 量、 上报过程, 释放定位相关资源; 所述 E-SMLC进一步用于释放定位相 关资源;
所述 UE 收到终止定位过程的指示后, 进一步用于停止定位相关的测 量、 上报过程, 释放定位相关资源; 所述 E-SMLC进一步用于释放定位相 关资源。
根据本发明提供的方案, 在 eNB发起定位业务的过程中, 判定 UE需 要进行切换时, 能够及时向 E-SMLC发送包含终止定位请求的定位控制信 令或通知 E-SMLC UE发生切换;或者, eNB或 MME向 E-SMLC发送定位 业务请求后,如果在未收到定位业务响应时确定 UE发生切换, eNB或 MME 也可以通知 E-SMLC UE发生切换, 以及时终止不必要的定位过程, 避免对 定位资源造成浪费。 附图说明
图 1为 eNB发起定位业务的流程图;
图 2为本发明中 eNB发起定位业务过程中 UE发生切换时的具体实施 例一流程图;
图 3为本发明中 eNB发起定位业务过程中 UE发生切换时的具体实施 例二流程图。 具体实施方式 图 1为 eNB发起定位业务的流程图, 如图 1所示, LTE网络中, eNB 作为定位业务发起方的定位处理过程包括:
步骤 101: eNB向移动管理实体 ( MME , Mobility Management Entity ) 发送定位业务请求( Location Service Request ), 发起对 UE的定位。
步骤 102: MME 收到来自 eNB的定位业务请求后, 向增强型服务移 动位置中心( E-SMLC, Enhanced Serving Mobile Location Centre )转发该定 位业务请求。
步骤 103a: E-SMLC收到定位业务请求后, 进行与 eNB交互的定位处 理( eNB Procedures ), 如获取定位测量数据或定位辅助数据。
步骤 103b: 作为步骤 103a的补充或替代, E-SMLC可以进行与 UE交 互的定位处理(UE Procedures ), 如获取位置估计或定位测量, 或者传递定 位辅助数据给 UE, UE根据收到的定位辅助数据进行定位估计或定位测量。
步骤 104: 完成对 UE的定位后, E-SMLC向 MME发送定位业务响应 ( Location Service Response ), 该定位业务响应中携带有 UE的定位结果。
步骤 105: MME收到定位业务响应后, 向 eNode B转发携带有 UE的 定位结果的定位业务响应。
以上流程中, eNB 作为定位业务的发起方, 主要是为了了解当前小区 的信号情况, 以便进行网络优化。 如果此时由于 UE的移动需要进行切换, 那么由源 eNB发起定位业务所得到的 UE的定位结果, 对于源 eNB而言没 有任何意义, 应该及时终止后续的定位过程。
本发明中, eNB发起定位业务的过程中, 判定 UE需要进行切换时, 向 E-SMLC发送包含终止定位请求的定位控制信令; E-SMLC收到包含终 止定位请求的定位控制信令后, 根据当前定位过程使用的定位方法进行对 应处理, 即: 如果使用基于网络的定位方法, 即 UE不参与定位过程的定位 信令交互, 则指示 eNB终止定位过程; 如果使用基于 UE的定位方法, 即 UE参与到定位测量、 上报过程, 则指示 UE终止定位过程; 如果当前定位 方法未选定, 则指示 eNB终止定位过程即可。
图 2为本发明中 eNB发起定位业务过程中, UE发生切换时的具体实 施例一流程图, 如图 2所示, 具体处理过程包括:
步骤 201 ~步骤 202: eNB通过 MME向 E-SMLC发送定位业务请求, 发起对 UE的定位。 eNB收到定位响应前, UE上报测量报告, eNB、 即源 eNB判定 UE需要进行切换。
步骤 203: 由于 eNB之前已经发起了对 UE的定位, 但还未收到定位 响应, 需请求终止此定位过程, 通过定位协议、 如 LPPa ( LTE Positioning Protocol ) 向 E-SMLC发送包含终止定位请求的定位控制信令。
包含终止定位请求的定位控制信令可以是基于定位协议新增加的一条 定位控制信令, 该定位控制信令包含终止定位请求的消息字段; 也可以利 用定位协议的现有定位控制信令, 在基于定位协议的现有定位控制信令中 增加一个表示终止定位请求的消息字段。
E-SMLC 收到包含终止定位请求的定位控制信令后, 根据当前定位过 程使用的定位方法进行相应处理, 如果使用基于网络的定位方法, 即 UE 不参与定位过程的定位信令交互, 则执行步骤 204a, E-SMLC指示 eNB终 止定位过程; 如果使用基于 UE的定位方法, 即 UE参与到定位测量、 上报 过程, 则执行步骤 204b, E-SMLC指示 UE终止定位过程; 如果当前定位 方法未选定, 则执行步骤 204a, E-SMLC指示 eNB终止定位过程即可。
步骤 204a: E-SMLC指示 eNB终止定位过程。
指示 eNB 终止定位过程的具体实现: 可以是基于定位协议、 如 LPPa 新增加的一条定位控制信令, 该定位控制信令包含终止定位过程的消息字 段; 也可以利用基于定位协议的现有定位控制信令, 在基于定位协议的现 有定位控制信令中增加一个表示终止定位过程的消息字段。
步骤 204b: 或者, E-SMLC指示 UE终止定位过程。
指示 UE终止定位过程的具体实现: 可以是基于定位协议、 如 LPP新 增加的一条定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 也可以利用基于定位协议的现有定位控制信令, 在基于定位协议的现有定 位控制信令中增加一个表示终止定位过程的消息字段。
步骤 205: 源 eNB向目标 eNB发送切换请求, 进行 UE的切换处理。 步骤 206: 源 eNB或 UE收到终止定位过程的指示后, 停止定位相关 的测量、 上4艮过程, UE、 eNB, E-SMLC释放定位相关资源, 定位过程结 束。
以上所述 LPP是 LTE中 UE与 E-SMLC之间交互信息所遵循的定位协 议; LPPa是 LTE中 eNB与 E-SMLC之间交互信息所遵循的定位协议。
图 3为本发明中 eNB发起定位业务过程中 UE发生切换时的具体实施 例二流程图, 如图 3所示, 具体处理过程包括:
步骤 301 ~步骤 302: eNB通过 MME向 E-SMLC发送定位业务请求, 发起对 UE的定位。 eNB收到定位响应前, UE上报测量报告, eNB、 即源 eNB判定 UE需要进行切换。
步骤 303: 源 eNB向目标 eNB发送切换请求, 进行 UE的切换处理。 步骤 304: 由于源 eNB之前已经发起了对 UE的定位, 但还未收到定 位响应, 因此需请求终止此定位过程, 通过定位协议、 如 LPPa向 E-SMLC 发送包含终止定位请求的定位控制信令。
包含终止定位请求的定位控制信令的具体实现与步骤 203 中相同, 在 此不再赘述。
E-SMLC 收到包含终止定位请求的定位控制信令后, 根据当前定位过 程使用的定位方法进行相应处理, 如果使用基于网络的定位方法, 即 UE 不参与定位过程的定位信令交互, 则执行步骤 305a, E-SMLC指示 eNB终 止定位过程; 如果使用基于 UE的定位方法, 即 UE参与到定位测量、 上报 过程, 则执行步骤 305b, E-SMLC指示 UE终止定位过程; 如果当前定位 方法未选定, 则执行步骤 305a, E-SMLC指示 eNB终止定位过程即可。
步骤 305a: E-SMLC指示 eNB终止定位过程。
步骤 305b: 或者, E-SMLC指示 UE终止定位过程。
指示 eNB或 UE终止定位过程的具体实现与图 2中描述相同, 在此不 再赘述。
步骤 306: 源 eNB或 UE收到终止定位过程的指示后, 停止定位相关 的测量、 上4艮过程, UE、 eNB, E-SMLC释放定位相关资源, 定位过程结 束。
另夕卜, eNB或 MME向 E-SMLC发送定位业务请求后, 如果在未收到 定位业务响应时确定 UE发生切换, eNB或 MME也可以通知 E-SMLC UE 发生切换; E-SMLC收到该通知后, 指示 eNB或者 UE终止定位过程。
本发明中提供的系统包括: eNB和 E-SMLC,或 UE、 eNB和 E-SMLC, 其中, eNB 发起定位业务的过程中, 判定 UE 需要进行切换时, 用于向 E-SMLC发送包含终止定位请求的定位控制信令; E-SMLC用于收到包含终 止定位请求的定位控制信令后, 指示 eNB或 UE终止定位过程。
eNB 收到终止定位过程的指示后, 还用于停止定位相关的测量、 上报 过程, 释放定位相关资源; E-SMLC进一步用于释放定位相关资源。
UE收到终止定位过程的指示后, 还用于停止定位相关的测量、 上报过 程, 释放定位相关资源; E-SMLC进一步用于释放定位相关资源。
源 eNB进一步用于向目标 eNB发送切换请求, 进行 UE的切换处理。 另外, 也可以不由 eNB向 E-SMLC发送包含终止定位请求的定位控制 信令, 而是在 eNB或 MME向 E-SMLC发送定位业务请求后, 如果在未收 到定位业务响应时确定 UE发生切换, eNB或 MME用于通知 E-SMLC UE 发生切换; E-SMLC用于收到该通知后, 指示 eNB或者 UE终止定位过程。
eNB通知 E-SMLC UE发生切换可以基于定位协议、 如 LPPa来实现, 其具体实现: 可以是基于定位协议新增加的一条定位控制信令, 该定位控 制信令包含 UE切换通知的消息字段;也可以利用基于定位协议的现有定位 控制信令,在基于定位协议的现有定位控制信令中增加一个表示 UE切换通 知的消息字段。 MME通知 E-SMLC UE发生切换可以通过在控制信令中增 加切换标志位来实现, 所述控制信令如状态更新 ( Status Update ) 消息等。
E-SMLC 同样根据当前定位过程使用的定位方法是使用基于网络的定 位方法、 还是使用基于 UE的定位方法进行相应处理。
与上述处理方式对应的系统包括: eNB, MME和 E-SMLC, 或 UE、 MME和 E-SMLC, 或 UE、 eNB和 E-SMLC, 或 eNB和 E-SMLC。 其中, eNB或 MME用于未收到定位业务响应时确定 UE发生切换,通知 E-SMLC UE发生切换; E-SMLC用于根据收到的通知, 指示 eNB或者 UE终止定位 过程。
eNB 收到终止定位过程的指示后, 还用于停止定位相关的测量、 上报 过程, 释放定位相关资源; E-SMLC进一步用于释放定位相关资源。
UE收到终止定位过程的指示后, 还用于停止定位相关的测量、 上报过 程, 释放定位相关资源; E-SMLC进一步用于释放定位相关资源。
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、 一种长期演进(LTE )网络定位中切换时的处理方法, 其特征在于, 包括:
演进基站 (eNB )发起定位业务的过程中, 判定用户设备 ( UE ) 需要 进行切换时, 向增强型服务移动位置中心(E-SMLC )发送包含终止定位请 求的定位控制信令;
E-SMLC收到包含终止定位请求的定位控制信令后, 指示 eNB或 UE 终止定位过程。
2、 根据权利要求 1所述的方法, 其特征在于, 所述包含终止定位请求 的定位控制信令是:
基于定位协议新增加的一条定位控制信令, 该定位控制信令包含终止 定位请求的消息字段; 或者,
在基于定位协议的现有定位控制信令中增加一个表示终止定位请求的 消息字段。
3、 根据权利要求 1或 2所述的方法, 其特征在于,
所述指示 eNB终止定位过程的具体实现为: 基于定位协议新增加的一 条定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 或者, 在基于定位协议的现有定位控制信令中增加一个表示终止定位过程的消息 字段;
所述指示 UE终止定位过程的具体实现为:基于定位协议新增加的一条 定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 或者, 在 基于定位协议的现有定位控制信令中增加一个表示终止定位过程的消息字 段。
4、 根据权利要求 1或 2所述的方法, 其特征在于,
所述判定 UE需要进行切换时, 进一步包括: eNB向目标 eNB发送切 换请求, 进行 UE的切换处理; 和 /或,
所述指示 eNB或 UE终止定位过程之前, 进一步包括: E-SMLC确定 当前定位过程使用的定位方法^ ^于网络的定位方法、还是基于 UE的定位 方法。
5、 根据权利要求 1或 2所述的方法, 其特征在于,
所述指示 eNB终止定位过程之后, 进一步包括: eNB停止定位相关的 测量、 上4艮过程, eNB, E-SMLC释放定位相关资源;
所述指示 UE终止定位过程之后, 进一步包括: UE停止定位相关的测 量、 上报过程, UE、 E-SMLC释放定位相关资源。
6、 一种 LTE网络定位中切换时的处理系统, 其特征在于, 包括: eNB, 发起定位业务请求的过程中, 判定 UE需要进行切换时, 用于向
E-SMLC发送包含终止定位请求的定位控制信令;
E-SMLC, 用于收到包含终止定位请求的定位控制信令后, 指示 eNB 或 UE终止定位过程。
7、 根据权利要求 6所述的系统, 其特征在于,
所述 eNB收到终止定位过程的指示后, 进一步用于停止定位相关的测 量、 上报过程, 释放定位相关资源; 所述 E-SMLC进一步用于释放定位相 关资源;
所述 UE 收到终止定位过程的指示后, 进一步用于停止定位相关的测 量、 上报过程, 释放定位相关资源; 所述 E-SMLC进一步用于释放定位相 关资源。
8、根据权利要求 6或 7所述的系统, 其特征在于, 所述 eNB进一步用 于向目标 eNB发送切换请求, 进行 UE的切换处理。
9、 一种 LTE网络定位中切换时的处理方法, 其特征在于, 包括: eNB或移动管理实体 ( MME ) 未收到定位业务响应时确定 UE发生切 换, 通知 E-SMLC UE发生切换;
E-SMLC根据收到的通知, 指示 eNB或者 UE终止定位过程。
10、 根据权利要求 9所述的方法, 其特征在于,
所述 eNB通知 E-SMLC UE发生切换的具体实现为: 基于定位协议新 增加的一条定位控制信令, 该定位控制信令包含 UE切换通知的消息字段; 或者,在基于定位协议的现有定位控制信令中增加一个表示 UE切换通知的 消息字段;
所述 MME通知 E-SMLC UE发生切换的具体实现为:在控制信令中增 力口切换标志位。
11、 根据权利要求 9或 10所述的方法, 其特征在于,
所述指示 eNB终止定位过程的具体实现为: 基于定位协议新增加的一 条定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 或者, 在基于定位协议的现有定位控制信令中增加一个表示终止定位过程的消息 字段;
所述指示 UE终止定位过程的具体实现为:基于定位协议新增加的一条 定位控制信令, 该定位控制信令包含终止定位过程的消息字段; 或者, 在 基于定位协议的现有定位控制信令中增加一个表示终止定位过程的消息字 段。
12、根据权利要求 9或 10所述的方法, 其特征在于, 所述指示 eNB或 UE终止定位过程之前, 进一步包括: E-SMLC确定当前定位过程使用的定 位方法是基于网络的定位方法、 还是基于 UE的定位方法。
13、 根据权利要求 9或 10所述的方法, 其特征在于,
所述指示 eNB终止定位过程之后, 进一步包括: eNB停止定位相关的 测量、 上4艮过程, eNB, E-SMLC释放定位相关资源;
所述指示 UE终止定位过程之后, 进一步包括: UE停止定位相关的测 量、 上报过程, UE、 E-SMLC释放定位相关资源。
14、一种 LTE网络定位中切换时的处理系统,其特征在于, 包括: eNB, MME和 E-SMLC, 或 UE、 MME和 E-SMLC, 或 UE、 eNB和 E-SMLC, 或 eNB和 E-SMLC, 其中,
所述 eNB 或 MME用于未收到定位业务响应时确定 UE发生切换, 通 知 E-SMLC UE发生切换;
所述 E-SMLC用于根据收到的通知,指示 eNB或者 UE终止定位过程。
15、 根据权利要求 14所述的系统, 其特征在于,
所述 eNB收到终止定位过程的指示后, 进一步用于停止定位相关的测 量、 上报过程, 释放定位相关资源; 所述 E-SMLC进一步用于释放定位相 关资源;
所述 UE 收到终止定位过程的指示后, 进一步用于停止定位相关的测 量、 上报过程, 释放定位相关资源; 所述 E-SMLC进一步用于释放定位相 关资源。
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