WO2012106945A1 - 全球定位系统gps参考时间获取方法和设备 - Google Patents

全球定位系统gps参考时间获取方法和设备 Download PDF

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Publication number
WO2012106945A1
WO2012106945A1 PCT/CN2011/078455 CN2011078455W WO2012106945A1 WO 2012106945 A1 WO2012106945 A1 WO 2012106945A1 CN 2011078455 W CN2011078455 W CN 2011078455W WO 2012106945 A1 WO2012106945 A1 WO 2012106945A1
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WO
WIPO (PCT)
Prior art keywords
gps
information exchange
information
exchange initialization
rnc
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Application number
PCT/CN2011/078455
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English (en)
French (fr)
Inventor
张媛媛
徐斌
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2011/078455 priority Critical patent/WO2012106945A1/zh
Priority to CN201180001511XA priority patent/CN102362197A/zh
Publication of WO2012106945A1 publication Critical patent/WO2012106945A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/05Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a GPS positioning time acquisition method and device for a global positioning system. Background technique
  • a Radio Network Controller acquires positioning assistance data through a GPS receiver and transmits it to a user equipment (User Equipment;
  • Embodiments of the present invention provide a GPS positioning time acquisition method and device for a global positioning system to improve the success rate of A-GPS positioning.
  • a global positioning system GPS reference time acquisition method including: sending an information exchange initialization request to a GPS-installed device, where the information exchange initialization request carries a GPS positioning assistance data type requested to be acquired, and the data type Including data type GPS week time GPS TOW;
  • a wireless network controller including:
  • a sending module configured to send an information exchange initialization request to the GPS-installed device, where the information exchange initialization request carries a GPS positioning assistance data type that is requested to be acquired, where the data type includes a data type GPS week time GPS TOW data type;
  • a receiving module configured to receive an information exchange initialization response returned by the GPS-installed device, where the information exchange initialization response carries GPS positioning assistance data, and the GPS positioning assistance data includes a GPS TOW;
  • an obtaining module configured to acquire a GPS reference time according to the GPS positioning assistance data.
  • the GPS positioning time acquisition method and device of the global positioning system provided by the embodiment of the present invention, the RNC and the GPS device perform the information exchange process to request the data type GPS TOW, so that the RNC obtains the GPS reference time according to the auxiliary data such as the GPS TOW, thereby improving The success rate of A-GPS positioning.
  • FIG. 1 is a flowchart of an embodiment of a GPS positioning time acquisition method of a global positioning system according to the present invention
  • FIG. 2 is a flowchart of still another embodiment of a GPS positioning time acquisition method of a global positioning system according to the present invention
  • FIG. 3 is a flowchart of another embodiment of a GPS positioning time acquisition method of a global positioning system according to the present invention
  • FIG. 4 is a schematic structural diagram of an embodiment of a radio network controller according to the present invention. detailed description
  • FIG. 1 is a flowchart of an embodiment of a method for acquiring a GPS reference time of a global positioning system according to the present invention. As shown in FIG. 1, the method includes:
  • S102 Receive an information exchange initialization response returned by the device that installs the GPS, and carry the GPS positioning assistance data in the information exchange initialization response, where the GPS positioning assistance data includes a GPS TOW;
  • the execution body of the above steps may be a radio network controller RNC.
  • RNC radio network controller
  • the embodiments of the present invention can be applied to a wireless communication system such as Wideband Code Division Multiple Access (WCDMA).
  • WCDMA Wideband Code Division Multiple Access
  • the RNC needs to obtain the GPS positioning assistance data and send it to the UE. If the GPS receiver is installed in the neighboring RNC, that is, the GPS receiver is not installed on the RNC, the RNC needs to perform the IRN interface with the neighboring RNC. Information exchange, if the GPS receiver is installed on the NodeB, the RNC needs to exchange information with the NodeB through the IUB interface to obtain
  • the positioning assistance data may be directly sent to the UE, or the positioning assistance data may be calculated and sent to the UE to implement positioning of the UE.
  • the GPS reference time is an important factor for the UE to successfully locate, and also directly affects the positioning of the UE.
  • Table 1 shows the UE positioning GPS reference time. Table 1 includes the parameters required to obtain the GPS reference time. Table 1 is as follows:
  • the RNC may add a GPS TOW to the GPS positioning assistance data type requested to be acquired in an information exchange initialization request sent to a neighboring RNC or a base station where the GPS receiver is installed, thereby installing the GPS receiver.
  • the information exchange initialization response returned by the neighboring RNC or the base station and the information report carry the GPS TOW, that is, enable the RNC to acquire the GPS TOW in the information exchange with the neighboring RNC or the base station on which the GPS receiver is installed, so that The GPS TOW is carried to obtain the GPS reference time.
  • the reference time for obtaining the reference time according to the parameters such as the GPS TOW can be referred to the existing protocol, and details are not described herein again.
  • the GPS positioning time acquisition method of the global positioning system requests the data type GPS TOW to be acquired during the information exchange between the RNC and the GPS device, so that the RNC obtains the GPS reference time according to the auxiliary data such as the GPS TOW, thereby improving the A- The success rate of GPS positioning and can shorten the time required for positioning.
  • FIG. 2 is a flowchart of still another embodiment of a GPS positioning time acquisition method of a global positioning system according to the present invention. As shown in FIG. 2, this embodiment provides a method for information interaction between a first RNC and a second RNC to obtain a GPS reference time.
  • the first RNC is the local RNC
  • the second RNC is the RNC adjacent to the local RNC.
  • the method includes:
  • the first RNC sends an information exchange initialization request (INFORMATION EXCHANGE INITIATION REQUEST) to the second RNC that installs the GPS receiver through the IUR port, where the information exchange initialization request carries the GPS positioning assistance data type requested to be acquired, where the data type includes data.
  • Type GPS TOW The information exchange initialization request carries the GPS positioning assistance data type requested to be acquired, where the data type includes data.
  • the data type requested by the RNC in the prior art is carried in the GPS Information Item sub-cell in the GPS Information cell in the information exchange initialization request message, and the information exchange initialization request of the IUR port is requested.
  • the type of data that can be carried in each cell in the message (including the type of data that the GPS information item in the GPS information cell can carry), through the GPS Information Type Table of the IUR port in the existing 3GPP protocol. It is stipulated that the first RNC according to the data type that can be carried by the GPS information item in the GPS information cell specified in the GPS information type table of the IUR port in the existing 3GPP protocol, to the second RNC Request data.
  • the GPS TOW type may be added to the GPS Information Item value of the GPS information type table (Information Type) of the existing IUR port, so that the first RNC can be based on the modified IUR port.
  • the GPS information type table specifies that the data type GPS TOW is carried in the GPS Information Item sub-cell in the GPS information cell of the information exchange initialization request message to request acquisition of the GPS TOW from the second RNC.
  • the GPS information type table of the IUR port after adding the GPS TOW type to the GPS Information Item value is shown in Table 2:
  • the first RNC carrying the data type GPS TOW in the GPS Information Item in the GPS information cell in the information exchange initialization request message is only a feasible implementation manner, and is not used as a Limitations of the invention.
  • the first RNC may also carry the data type GPS TOW requested by the second RNC in other cells in the information exchange initialization request, or carry the data type GPS TOW in the information exchange initialization.
  • a new cell is added to carry the data type GPS TOW.
  • the second RNC that installs the GPS receiver returns an information exchange initialization response (INFORMATION EXCHANGE INITIATION REQUEST) to the first RNC, where the information exchange initialization response carries GPS positioning assistance data, and the GPS positioning assistance data includes a data type GPS TOW.
  • an information exchange initialization response (INFORMATION EXCHANGE INITIATION REQUEST) to the first RNC, where the information exchange initialization response carries GPS positioning assistance data, and the GPS positioning assistance data includes a data type GPS TOW.
  • the second RNC may directly The GPS TOW is carried in the request value cell.
  • the second RNC that installs the GPS receiver returns an information report (Information REPORT) to the first RNC, where the information report carries updated GPS positioning assistance data, and the updated GPS positioning assistance data includes the updated GPS TOW.
  • Information REPORT Information REPORT
  • the second RNC installing the GPS receiver can carry the updated GPS positioning assistance data by reporting the information report (INFORMATION REPORT) to the first RNC. Similar to carrying the GPS TOW in the information exchange initialization response, the second RNC may also carry the updated GPS TOW in the Requested Data Value cell in the INFORMATION REPORT of the IUR port.
  • the type of data that the request value cell in the information exchange initialization response and the information report can carry is specified by the Requested Data Value of the IUR interface in the existing 3GPP protocol, that is, the second RNC is based on the existing 3GPP.
  • Information exchange initialization response request value in the cell Returning to the first RNC, the updated GPS TOW is carried in the request value cell of the information report and returned to the first RNC.
  • Table 3 The value list of the IUR port after adding the GPS TOW is shown in Table 3:
  • the second RNC carrying the GPS TOW in the Requested Data Value cell of the information exchange initialization response is only a feasible implementation manner.
  • the second RNC is carried in the Requested Data Value cell in the information report.
  • the updated GPS TOW is also only one possible implementation and is not intended to limit the invention.
  • the second RNC may also carry the GPS TOW in the information exchange initialization response or other cells of the message, or add a new cell in the information exchange initialization response or information report to carry the GPS TOW.
  • the first RNC may include indication information in the information exchange initialization request for indicating the information exchange initialization response or the reporting period of the information report, and the reporting period may be determined according to actual needs, for example, the reporting period may be selected to be 1-6s.
  • the first RNC acquires a GPS reference time according to the GPS positioning assistance data.
  • the first RNC can obtain the GPS reference time according to the information exchange initialization response and the GPS Week originally carried in the information report, and the newly carried GPS TOW.
  • FIG. 3 is a flowchart of another embodiment of a GPS positioning time acquisition method of a global positioning system according to the present invention. As shown in FIG. 3, this embodiment provides a method for an RNC to perform information interaction with a base station to obtain a GPS reference time, where the method includes :
  • the RNC sends an information exchange initialization request (Information EXCHANGE INITIATION REQUEST) to the base station where the GPS receiver is installed through the IUB port, and the information exchange initialization request carries the GPS positioning assistance data type requested to be acquired, and the data type includes the data type GPS TOW.
  • Information EXCHANGE INITIATION REQUEST Information EXCHANGE INITIATION REQUEST
  • the information exchange initialization request of the IUB port is requested.
  • the type of data that can be carried in each cell is specified by the information type of the IUB port in the existing 3GPP protocol. That is, the RNC requests data from the base station based on the data type that the GPS information item in the GPS information element specified in the GPS information type table of the IUB port in the existing 3GPP protocol can carry.
  • the GPS TOW type may be added to the GPS Information Item value of the existing Information Type of the IUB port, so that the RNC can perform the GPS according to the modified IUB port.
  • the information type table specifies that the data type GPS TOW is carried in the GPS Information Item sub-cell in the GPS information cell of the information exchange initialization request message to request the base station to acquire the GPS TOW.
  • the GPS information type table of the IUB port after adding the GPS TOW type to the GPS Information Item value is shown in Table 4:
  • the RNC carrying the data type GPS TOW type in the GPS Information Item confidence element in the GPS information cell in the information exchange initialization request message is only a feasible implementation manner, and is not used as the present invention. limit.
  • the RNC may also carry the data type GPS TOW requested by the base station in other cells in the information exchange initialization request, or carry the data type GPS TOW in the GPS information cell in the information exchange initialization request. In other sub-cells, or in the information exchange initialization request, a new cell is added to carry the data type GPS TOW.
  • the base station that installs the GPS receiver returns an information exchange initialization response (Information EXCHANGE INITIATION REQUEST) to the RNC, where the information exchange initialization response carries GPS positioning assistance data, and the GPS positioning assistance data includes GPS TOW.
  • Information EXCHANGE INITIATION REQUEST Information EXCHANGE INITIATION REQUEST
  • the RNC can directly Requesting a numeric cell to carry a GPS TOW.
  • the base station that installs the GPS receiver returns an information report (Information REPORT) to the RNC, where the information report carries the updated GPS positioning assistance data, and the updated GPS positioning assistance data includes the updated GPS TOW.
  • Information REPORT Information REPORT
  • the base station on which the GPS receiver is installed can carry the updated GPS positioning assistance data by reporting the INFORMATION REPORT to the RNC. Similar to the GPS TOW carried in the information exchange initialization response, the RNC can also carry the updated GPS TOW in the Requested Data Value cell in the INFORMATION REPORT of the IUB port.
  • the type of data that the request value cell in the information exchange initialization response and the information report can carry is specified by the Requested Data Value of the IUB port in the existing 3GPP protocol, that is, the base station according to the existing 3GPP protocol.
  • the request value cell of the initialization response is returned to the RNC, and the updated GPS TOW is carried in the request value cell of the information report and returned to the RNC.
  • the base station carrying the GPS TOW in the Requested Data Value cell of the information exchange initialization response is only a feasible implementation manner.
  • the base station carries the updated GPS TOW in the Requested Data Value cell in the information report. It is also only a possible implementation and is not intended to limit the invention.
  • the base station can also carry the GPS TOW in other cells of the information exchange initialization response or information report, or add a cell carrying GPS TOW in the information exchange initialization response or information report.
  • the RNC may include the indication information in the information exchange initialization request to indicate the information exchange initialization response or the reporting period of the information report, and the reporting period may be determined according to actual needs, for example, the reporting period may be selected to be 1-6s.
  • S304 and RNC obtain the GPS reference time according to the GPS positioning assistance data.
  • the RNC After the RNC obtains the GPS TOW, it can obtain the GPS reference time based on the information exchange initialization response and the GPS Week originally carried in the information report, and the newly added GPS TOW.
  • the storage medium may be a magnetic disk, an optical disk, or a read-only storage memory.
  • ROM Read-Only Memory
  • RAM random access memory
  • the radio network controller includes: a sending module 11, a receiving module 12, and an obtaining module 13;
  • the sending module 11 is configured to send an information exchange initialization request to the device for installing the GPS, where the information exchange initialization request carries the GPS positioning assistance data type that is requested to be acquired, and the data type includes the data type GPS week time GPS TOW;
  • the receiving module 12 is configured to receive an information exchange initialization response returned by the device that installs the GPS, and the information exchange initialization response carries the GPS positioning assistance data, and the GPS positioning assistance data includes a GPS TOW;
  • the acquisition module 13 is configured to obtain a GPS reference time according to the GPS positioning assistance data.
  • the RNC needs to obtain GPS positioning assistance data and send it to the UE.
  • the GPS receiver is installed in the neighboring RNC, that is, the GPS receiver is not installed on the RNC, and the transmitting module 11 and the receiving module 12 of the RNC can exchange information with the neighboring RNC through the IUR interface, if the GPS receiver is installed on the NodeB.
  • the transmitting module 11 and the receiving module 12 of the RNC can exchange information with the NodeB through the IUB interface to obtain GPS positioning assistance data.
  • the sending module 11 may add a data type GPS TOW to the GPS positioning assistance data type requested to be acquired in an information exchange initialization request sent to a neighboring RNC or a base station where the GPS receiver is installed, thereby enabling the neighboring RNC to install the GPS receiver. Or the information exchange initialization response returned by the base station and the information report carrying the GPS TOW, that is, enabling the receiving module 12 to acquire the GPS TOW from the neighboring RNC or the base station where the GPS receiver is installed, so that the obtaining module 13 can obtain the GPS TOW according to the acquired GPS TOW.
  • GPS reference time For example, the reference time of obtaining the reference time according to the parameters such as the GPS TOW can be referred to the existing protocol, and details are not described herein again.
  • the receiving module 12 is further configured to: receive an information report returned by the GPS-installed device, where the information report carries updated GPS positioning assistance data, and the updated GPS positioning assistance data includes Updated GPS TOW.
  • the information exchange initialization request further includes indication information, where the indication information is used to indicate a reporting period of the information exchange initialization response or the information report.
  • the data type included in the data type GPS TOW can be carried in the GPS information cell in the information exchange initialization request.
  • GPS TOW included in the GPS positioning assistance data may be carried in the request value cell in the information exchange initialization response.
  • the updated GPS TOW included in the updated GPS positioning assistance data can be carried in the request value cell in the information report.
  • the sending module 11 may be specifically configured to: send an information exchange initialization request to a neighboring RNC that installs the GPS; or send an information exchange initialization request to the base station that installs the GPS.
  • the receiving module 12 may be specifically configured to: receive an information exchange initialization response returned by the neighboring RNC from the IUR interface; or receive an information exchange initialization response returned by the base station from the IUB interface.
  • the receiving module 12 can also be specifically configured to: receive an information report returned by an adjacent RNC that installs the GPS; or receive a report of information returned by the base station that installs the GPS.
  • the sending module 11 may send an information exchange initialization request to the neighboring RNC where the GPS receiver is installed through the IUR port, where the information exchange initialization request carries the GPS positioning assistance data type that is requested to be acquired.
  • the data type includes the data type GPS TOW.
  • the sending module 11 may carry the data type GPS TOW in the GPS Information Item sub-cell of the GPS information cell in the information exchange initialization request, or the sending module 11 may carry the data type GPS TOW.
  • the sending module 11 may also carry the data type GPS TOW in other sub-cells in the GPS information cell in the information exchange initialization request, or the sending module 11 may also New information in the information exchange initialization request to carry the data type GPS TOW.
  • the receiving module 12 receives an information exchange initialization response returned by a neighboring RNC installed with a GPS receiver, where the information exchange initialization response carries GPS positioning assistance data, and the GPS positioning assistance data includes a data type GPS TOW, and the GPS positioning assistance data is updated in real time. Therefore, the neighboring RNC installing the GPS receiver can carry the updated GPS positioning assistance data by reporting the information report. Specifically, the neighboring RNC may carry the GPS TOW in the request value cell in the information exchange initialization response, and the neighboring RNC may carry the updated GPS TOW in the request value cell in the information report; correspondingly, the receiving module 12 may The GPS TOW is obtained in the request value cell in the information exchange initialization response, and the updated GPS TOW can be obtained in the request value cell in the information report.
  • the neighboring RNC may also carry the GPS TOW in other cells or newly added cells of the information exchange initialization response, or may carry the updated GPS TOW in other cells or newly added cells of the information report;
  • the receiving module 12 can obtain the GPS TOW in the information exchange initialization response or other cells or new cells of the information report.
  • the sending module 11 may further send an information exchange initialization request to the base station where the GPS receiver is installed through the IUB port, where the sending module 11 may carry the data type GPS TOW in the GPS information of the information exchange initialization request.
  • the sending module 11 may also carry the data type GPS TOW in other cells of the information exchange initialization request, or the sending module 11 may also use the data type.
  • the GPS TOW is carried in other sub-cells in the GPS information cell in the information exchange initialization request, or the transmitting module 11 may also add a cell in the information exchange initialization request to carry the data type GPS TOW.
  • the base station installing the GPS receiver returns an information exchange initialization response to the RNC. Since the GPS positioning assistance data in the information exchange initialization response in the prior art is carried in the request value cell in the information exchange initialization response, the GPS receiver is installed. The base station can carry the GPS TOW directly in the request value cell of the information exchange initialization response. The base station where the GPS receiver is installed returns an information report to the RNC. Since the GPS positioning assistance data is updated in real time, the GPS is installed. The base station of the receiver can carry the updated GPS positioning assistance data by reporting the information reported to the receiving module 12.
  • the base station may carry the GPS TOW in the request value cell in the information exchange initialization response, and the base station may carry the updated GPS TOW in the request value cell in the information report; correspondingly, the receiving module 12 may be initialized in the information exchange.
  • the GPS TOW is obtained from the request value cell in the response, and the updated GPS TOW can be obtained in the request value cell in the information report.
  • the base station can also carry the GPS TOW in other cells or newly added cells of the information exchange initialization response, or carry the updated GPS TOW in other cells or added cells of the information 4;
  • the receiving module 12 can obtain the GPS TOW in the information exchange initialization response or other cells or new cells of the information report.
  • the obtaining module 13 can exchange the initialization response and the GPS Week originally carried in the information report according to the information received by the receiving module 12, and the GPS TOW received by the receiving module 12 to obtain the GPS reference time.
  • the radio network controller provided by the embodiment of the present invention is an apparatus for performing the GPS positioning time acquisition method of the global positioning system according to the embodiment of the present invention, which corresponds to the GPS positioning time acquisition method of the global positioning system provided by the embodiment of the present invention, and the specific The method execution process can refer to the method embodiment.
  • the RNC and the GPS device request to acquire the data type GPS TOW during the information exchange process, so that the RNC obtains the GPS reference time according to the auxiliary data such as the GPS TOW, thereby improving the success of the A-GPS positioning. Rate, and can shorten the time required for positioning.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Position Fixing By Use Of Radio Waves (AREA)

Description

全球定位系统 GPS参考时间获取方法和设备
技术领域
本发明涉及通信技术领域,特别涉及一种全球定位系统 GPS参考时间获 取方法和设备。 背景技术
在网络辅助的全球定位系统 ( Network-assisted Global Positioning System; A-GPS ) 中, 无线网络控制器( Radio Network Controller; RNC ) 通过 GPS接收机获取定位辅助数据并发送给用户设备 ( User Equipment;
UE ), 以实现 UE的定位。
现有技术中, 如果 GPS接收机或 GPS帧定时卡安装在相邻 RNC上或 基站(NodeB )上时, RNC需要通过 IUR口与相邻 RNC进行信息交换, 或 者, 通过 IUB口与 NodeB进行信息交换, 以获取相邻 RNC或 NodeB上的 GPS的定位辅助数据。然而,现有技术中, RNC无法从与相邻 RNC或 NodeB 的信息交换中获取 GPS参考时间, 这将会影响 A-GPS 定位的成功率。 发明内容
本发明实施例提供了一种全球定位系统 GPS参考时间获取方法和设备, 以提高 A-GPS 定位的成功率。
一方面, 提供了一种全球定位系统 GPS参考时间获取方法, 包括: 向安装 GPS的设备发送信息交换初始化请求,所述信息交换初始化请求 中携带请求获取的 GPS 定位辅助数据类型, 所述数据类型中包括数据类型 GPS周时间 GPS TOW;
接收所述安装 GPS的设备返回的信息交换初始化响应,所述信息交换初 始化响应中携带 GPS定位辅助数据, 所述 GPS定位辅助数据中包括 GPS TOW;
根据所述 GPS定位辅助数据获取 GPS参考时间。
另一方面, 还提供了一种无线网络控制器, 包括:
发送模块, 用于向安装 GPS的设备发送信息交换初始化请求, 所述信息 交换初始化请求中携带请求获取的 GPS定位辅助数据类型,所述数据类型中 包括数据类型 GPS周时间 GPS TOW数据类型;
接收模块, 用于接收所述安装 GPS的设备返回的信息交换初始化响应, 所述信息交换初始化响应中携带 GPS定位辅助数据, 所述 GPS定位辅助数 据中包括 GPS TOW;
获取模块, 用于根据所述 GPS定位辅助数据获取 GPS参考时间。
本发明实施例提供的全球定位系统 GPS参考时间获取方法和设备, RNC 与 GPS的设备进行信息交换过程中请求获取数据类型 GPS TOW, 以实现 RNC根据 GPS TOW等辅助数据获取 GPS参考时间, 从而提高 A-GPS 定 位的成功率。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面 描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明提供的全球定位系统 GPS参考时间获取方法一个实施例的 流程图;
图 2为本发明提供的全球定位系统 GPS参考时间获取方法又一个实施例 的流程图;
图 3为本发明提供的全球定位系统 GPS参考时间获取方法另一个实施例 的流程图; 图 4为本发明提供的无线网络控制器一个实施例的结构示意图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而 不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做 出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明提供的全球定位系统 GPS参考时间获取方法一个实施例的 流程图, 如图 1所示, 该方法包括:
S101、 向安装 GPS的设备发送信息交换初始化请求, 信息交换初始化 请求中携带请求获取的 GPS 定位辅助数据类型, 数据类型中包括数据类型 GPS周时间 GPS TOW;
S102、 接收安装 GPS的设备返回的信息交换初始化响应, 信息交换初 始化响应中携带 GPS定位辅助数据, GPS定位辅助数据中包括 GPS TOW;
S103、 根据 GPS定位辅助数据获取 GPS参考时间。
以上步骤的执行主体可以为无线网络控制器 RNC。本发明实施例可以适 用于宽带码多分址(Wideband Code Division Multiple Access; WCDMA ) 等无线通信系统。
在 A-GPS定位中, RNC需要获取 GPS定位辅助数据发送给 UE, 如果 GPS接收机安装在相邻 RNC,即本 RNC上没有安装 GPS接收机,则本 RNC 需要通过 IUR接口与相邻 RNC 进行信息交换, 如果 GPS接收机安装在 NodeB上, 则本 RNC需要通过 IUB接口与 NodeB进行信息交换, 以获取
GPS定位辅助数据。 获取定位辅助数据之后, 可以将这些定位辅助数据直接 发送给 UE, 或者是对这些定位辅助数据进行计算后发送给 UE, 以实现 UE 的定位。
GPS参考时间是 UE能否成功定位的重要因素, 也直接影响 UE的定位 时间。表 1为 UE定位 GPS参考时间表( UE positioning GPS reference time ), 表 1中包括获取 GPS参考时间所需的参数, 表 1如下所示:
Figure imgf000006_0001
表 1
表 1 中, GPS周(GPS Week )和 GPS周时间(Time Of Week; TOW ) 为获取 GPS参考时间的必要参数, 其余参数为获取 GPS参考时间的可选参 数。 其中, 毫秒(msec ) 为 GPS周时间的单位。 本发明提供的实施例中, RNC 可以在发送给安装 GPS接收机的相邻 RNC或基站的信息交换初始化请求中, 在请求获取的 GPS定位辅助数据类 型中增加 GPS TOW, 从而使安装 GPS接收机的相邻 RNC或基站返回的信 息交换初始化响应以及信息报告中携带 GPS TOW, 即,使 RNC能够在与安 装 GPS接收机的相邻 RNC或基站的信息交换中获取 GPS TOW, 从而可以 根据新增携带的 GPS TOW获取 GPS参考时间。 其中, 根据 GPS TOW等 参数获取参考时间可参照现有协议, 在此不再赘述。
本发明实施例提供的全球定位系统 GPS 参考时间获取方法, RNC 与 GPS的设备进行信息交换过程中请求获取数据类型 GPS TOW,以实现 RNC 根据 GPS TOW等辅助数据获取 GPS参考时间,从而提高 A-GPS 定位的成 功率, 并且可以缩短定位所需时间。
图 2为本发明提供的全球定位系统 GPS参考时间获取方法又一个实施例 的流程图, 如图 2所示, 本实施例提供第一 RNC与第二 RNC进行信息交互 以获取 GPS参考时间的方法, 其中, 第一 RNC为本端 RNC, 第二 RNC为 与本端 RNC相邻的 RNC。 该方法包括:
S201、第一 RNC通过 IUR口向安装 GPS接收机的第二 RNC发送信息 交换初始化请求(INFORMATION EXCHANGE INITIATION REQUEST ), 信息交换初始化请求中携带请求获取的 GPS定位辅助数据类型,该数据类型 中包括数据类型 GPS TOW。
由于现有技术中 RNC请求的数据类型携带在信息交换初始化请求消息 中的 GPS信息 ( GPS Information )信元中的 GPS信息项 ( GPS Information Item )子信元中, 而 IUR口的信息交换初始化请求消息中各信元中可以携带 的数据类型 (包括 GPS信息信元中 GPS信息项子信元可以携带的数据类 型),通过现有 3GPP协议中的 IUR口的 GPS信息类型表( Information Type ) 来规定, 即,第一 RNC根据现有 3GPP协议中的 IUR口的 GPS信息类型表 中规定的 GPS信息信元中的 GPS信息项能够携带的数据类型,向第二 RNC 请求数据。 因此, 作为一种可行的实施方式, 可以在现有的 IUR 口的 GPS 信息类型表 ( Information Type ) 的 GPS Information Item取值中增加 GPS TOW类型, 从而使第一 RNC能够根据修改后的 IUR口的 GPS信息类型表 的规定, 在信息交换初始化请求消息的 GPS信息信元中的 GPS Information Item子信元中携带数据类型 GPS TOW, 以实现向第二 RNC请求获取 GPS TOW。 GPS Information Item取值中增加 GPS TOW类型后的 IUR口的 GPS 信息类型表如表 2所示:
Figure imgf000009_0001
Figure imgf000010_0001
表 2
但需要说明的是, 第一 RNC在信息交换初始化请求消息中的 GPS信息 信元中的 GPS Information Item子信元中携带数据类型 GPS TOW仅为一种 可行的实施方式, 并不以此作为对本发明的限制。 实际上, 例如, 第一 RNC 还可以将向第二 RNC请求的数据类型 GPS TOW携带在信息交换初始化请 求中的其它信元中, 或者是将数据类型 GPS TOW携带在信息交换初始化请 求中 GPS信息信元中的其他子信元中,或者是在信息交换初始化请求中新增 信元来携带数据类型 GPS TOW。
5202、 安装 GPS接收器的第二 RNC向第一 RNC返回信息交换初始化 响应 (INFORMATION EXCHANGE INITIATION REQUEST ), 该信息交换 初始化响应中携带 GPS定位辅助数据, GPS定位辅助数据中包括数据类型 GPS TOW。
由于现有技术中信息交换初始化响应中的 GPS 定位辅助数据携带在信 息交换初始化响应中的请求数值信元( Requested Data Value IE )中, 因此, 作为一种可行的实施方式,第二 RNC可以直接在该请求数值信元中携带 GPS TOW。
5203、 安装 GPS 接收器的第二 RNC 向第一 RNC 返回信息报告 ( INFORMATION REPORT ),该信息报告中携带更新的 GPS定位辅助数据, 更新的 GPS定位辅助数据中包括更新的 GPS TOW。
由于 GPS定位辅助数据是实时更新的, 因此, 安装 GPS接收器的第二 RNC可以通过向第一 RNC上报信息报告(INFORMATION REPORT ) 来携 带更新的 GPS定位辅助数据。 与信息交换初始化响应中携带 GPS TOW类似 的, 第二 RNC也可以在 IUR口的 INFORMATION REPORT中的请求数值 ( Requested Data Value )信元中携带更新的 GPS TOW。
其中, 信息交换初始化响应和信息报告中的请求数值信元可以携带的数 据类型,通过现有 3GPP协议中 IUR口的请求数值表( Requested Data Value ) 来规定, 即, 第二 RNC根据现有 3GPP协议中 IUR口的请求数值表中规定的请 求数值信元能够携带的数据类型, 以及第一 RNC请求的数据类型, 向第一 RNC返回数据。 因此, 作为一种可行的实施方式, 可以在现有的 IUR口的请 求数值表中增加 GPS TOW,从而使第二 RNC能够根据修改后的 IUR口的请求 数值表的规定, 将 GPS TOW携带在信息交换初始化响应的请求数值信元中 返回给第一 RNC, 将更新的 GPS TOW携带在信息报告的请求数值信元中返 回给第一 RNC。 新增 GPS TOW后的 IUR口的请求数值表如表 3所示:
Figure imgf000012_0001
IE/Group Name Presence Range IE Type and Semantics Criticality Assigned
Reference Description Criticality
GPS RX Pos 0 9.2.1 .30K -
SFN-SFN 0 9.2.1 .74
Measurement
Reference Point
Position
Cell Capacity 0 9.2.1 .5C YES ignore Class Value
NACC Related 0 9.2.1 .41 a YES ignore Data
MBMS Bearer 0 9.2.1 .84 YES ignore Service Full
Address
Inter-frequency 0 9.2.1 .31 G YES ignore Cell Information
GANSS Common 0..1 YES ignore Data
>GANSS 0 9.2.1 .105
Ionospheric
Model
>GANSS RX Pos 0 9.2.1 .109 -
GANSS Generic 0..<maxno GLOBAL ignore Data ofGANSS
>
>GANSS ID 0 9.2.1 .1 19 -
>DGANSS 0 9.2.1 .102 ―
Corrections
>GANSS 0 9.2.1 .120
Navigation Model
And Time
Recovery
>GANSS Time 0 9.2.1 .1 10 ―
Model
>GANSS UTC 0 9.2.1 .1 1 1 ―
Model
>GANSS 0 9.2.1 .103 ―
Almanac
>GANSS Real 0 9.2.1 .108 ―
Time Integrity
>GANSS Data 0 9.2.1 .1 18 ―
Bit Assistance
Figure imgf000013_0001
但需要说明的是, 第二 RNC在信息交换初始化响应的 Requested Data Value信元中携带 GPS TOW仅为一种可行的实施方式, 同样, 第二 RNC在 信息报告中的 Requested Data Value信元中携带更新的 GPS TOW也仅为一 种可行的实施方式,并不以此作为对本发明的限制。 实际上,例如,第二 RNC 还可以将 GPS TOW携带在信息交换初始化响应或者信息^艮告的其它信元中, 或者是在信息交换初始化响应或信息报告中新增信元携带该 GPS TOW。
另外, 第一 RNC可以在信息交换初始化请求中包括指示信息, 用于指示 信息交换初始化响应或信息报告的上报周期, 该上报周期可以根据实际需要 确定, 例如: 可以选择上报周期为 1-6s。 S204、 第一 RNC根据所述 GPS定位辅助数据获取 GPS参考时间。
第一 RNC获取 GPS TOW后, 可以根据信息交换初始化响应以及信息报 告中原本携带的 GPS Week, 以及新增携带的 GPS TOW获取 GPS参考时间。
图 3为本发明提供的全球定位系统 GPS参考时间获取方法另一个实施例 的流程图, 如图 3所示, 本实施例提供 RNC与基站进行信息交互以获取 GPS 参考时间的方法, 该方法包括:
S301、 RNC通过 IUB口向安装 GPS接收机的基站发送信息交换初始化 请求 ( INFORMATION EXCHANGE INITIATION REQUEST ), 信息交换初 始化请求中携带请求获取的 GPS定位辅助数据类型,该数据类型中包括数据 类型 GPS TOW。
由于现有技术中 RNC请求的数据类型携带在信息交换初始化请求消息 中的 GPS信息 ( GPS Information )信元中的 GPS信息项 ( GPS Information Item )子信元中, 而 IUB口的信息交换初始化请求中各信元中可以携带的数 据类型 (包括 GPS信息信元中 GPS信息项子信元可以携带的数据类型), 通过现有 3GPP协议中 IUB口的 GPS信息类型表 ( Information Type )来规 定, 即, RNC根据现有 3GPP协议中的 IUB口的 GPS信息类型表中规定的 GPS信息信元中的 GPS信息项能够携带的数据类型, 向基站请求数据。 因 此, 作为一种可行的实施方式, 可以在现有的 IUB 口的 GPS 信息类型表 ( Information Type )的 GPS Information Item取值中增加 GPS TOW类型, 从而使 RNC能够根据修改后的 IUB口的 GPS信息类型表的规定,在信息交 换初始化请求消息的 GPS信息信元中的 GPS Information Item子信元中携 带数据类型 GPS TOW,以实现向基站请求获取 GPS TOW。 GPS Information Item取值中增加 GPS TOW类型后的 IUB口的 GPS信息类型表如表 4所示:
Figure imgf000015_0001
Figure imgf000016_0001
gna
表 4
但需要说明的是, RNC在信息交换初始化请求消息中的 GPS信息信元 中的 GPS Information Item自信元中携带数据类型 GPS TOW类型仅为一种 可行的实施方式, 并不以此作为对本发明的限制。 实际上, 例如, RNC还可 以将向基站请求的数据类型 GPS TOW携带在信息交换初始化请求中的其他 信元中, 或者是将数据类型 GPS TOW携带在信息交换初始化请求中 GPS 信息信元中的其他子信元中, 或者是在信息交换初始化请求中新增信元来携 带数据类型 GPS TOW。
S302、 安装 GPS 接收器的基站向 RNC 返回信息交换初始化响应 ( INFORMATION EXCHANGE INITIATION REQUEST ), 该信息交换初始 化响应中携带 GPS定位辅助数据, GPS定位辅助数据中包括 GPS TOW。
由于现有技术中信息交换初始化响应中的 GPS 定位辅助数据携带在信 息交换初始化响应中的请求数值信元( Requested Data Value IE )中, 因此, 作为一种可行的实施方式, RNC 可直接在该请求数值信元中携带 GPS TOW。
S303、安装 GPS接收器的基站向 RNC返回信息报告 ( INFORMATION REPORT ), 该信息报告中携带更新的 GPS定位辅助数据, 更新的 GPS定 位辅助数据中包括更新的 GPS TOW。
由于 GPS定位辅助数据是实时更新的, 因此, 安装 GPS接收器的基站可 以通过向 RNC上报 INFORMATION REPORT来携带更新的 GPS定位辅助数 据。 与信息交换初始化响应中携带 GPS TOW类似的, RNC也可以在 IUB口的 INFORMATION REPORT中的请求数值 ( Requested Data Value )信元中携 带更新的 GPS TOW。
其中, 信息交换初始化响应和信息报告中的请求数值信元可以携带的数 据类型,通过现有 3GPP协议中 IUB口的请求数值表(Requested Data Value ) 来规定, 即, 基站根据现有 3GPP协议中 IUB口的请求数值表中规定的请求数 值信元能够携带的数据类型, 以及 RNC请求的数据类型, 向 RNC返回数据。 因此, 作为一种可行的实施方式, 可以在现有的 IUB口的请求数值表中增加 GPS TOW, 从而使基站能够根据修改后的 IUB口的请求数值表的规定, 将 GPS TOW携带在信息交换初始化响应的请求数值信元中返回给 RNC, 将更 新的 GPS TOW携带在信息报告的请求数值信元中返回给 RNC。 新增 GPS
TOW后的 I UB口的请求数值表如表 5所示:
Figure imgf000017_0001
GPS RX Pos 0 9.2.1 .31 G -
GANSS Common 0..1 YES ignore
Data
>GANSS 0 9.2.1 .91 -
Ionospheric
Model
>GANSS RX 0 9.2.1 .95 -
Pos
GANSS Generic 0..<max GLOBAL ignore
Data NoGAN
SS>
>GANSS ID 0 9.2.1 .104 -
>DGANSS 0 9.2.1 .88 -
Corrections
>GANSS 0 9.2.1 .105 -
Navigation
Model And Time
Recovery
>GANSS Time 0 9.2.1 .96 -
Model
>GANSS UTC 0 9.2.1 .97 -
Model
>GANSS 0 9.2.1 .89 -
Almanac
>GANSS Real 0 9.2.1 .94 -
Time Integrity
>GANSS Data 0 9.2.1 .103 -
Bit Assistance
Figure imgf000018_0001
但需要说明的是, 基站在信息交换初始化响应的 Requested Data Value 信元中携带 GPS TOW仅为一种可行的实施方式, 同样, 基站在信息报告中 的 Requested Data Value信元中携带更新的 GPS TOW也仅为一种可行的实 施方式, 并不以此作为对本发明的限制。 实际上, 基站还可以将 GPS TOW 携带在信息交换初始化响应或者信息报告的其他信元中, 或者是在信息交换 初始化响应或信息报告中新增信元携带 GPS TOW。
另外, RNC可以在信息交换初始化请求中包括指示信息, 用于指示信息 交换初始化响应或信息报告的上报周期,该上报周期可以根据实际需要确定, 例如: 可以选择上报周期为 1-6s。
S304、 RNC根据 GPS定位辅助数据获取 GPS参考时间。
RNC获取 GPS TOW后, 可以根据信息交换初始化响应以及信息报告中 原本携带的 GPS Week, 以及新增携带的 GPS TOW获取 GPS参考时间。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流 程, 是可以通过计算机程序来指令相关的硬件来完成, 所述的程序可存储于 一计算机可读取存储介质中, 该程序在执行时, 可包括如上述各方法的实施 例的流程。 其中, 所述的存储介质可为磁碟、 光盘、 只读存储记忆体
( Read-Only Memory, ROM )或随机存者 i己忆体( Random Access Memory, RAM )等。
图 4为本发明提供的无线网络控制器一个实施例的结构示意图, 如图 4 所示, 该无线网络控制器包括: 发送模块 11、 接收模块 12和获取模块 13; 其中:
发送模块 11 , 用于向安装 GPS的设备发送信息交换初始化请求, 信息 交换初始化请求中携带请求获取的 GPS定位辅助数据类型,数据类型中包括 数据类型 GPS周时间 GPS TOW;
接收模块 12, 用于接收安装 GPS的设备返回的信息交换初始化响应, 信息交换初始化响应中携带 GPS定位辅助数据, GPS定位辅助数据中包括 GPS TOW;
获取模块 13, 用于根据 GPS定位辅助数据获取 GPS参考时间。
在 A-GPS定位中, RNC需要获取 GPS定位辅助数据发送给 UE, 如果
GPS接收机安装在相邻 RNC,即本 RNC上没有安装 GPS接收机,则本 RNC 的发送模块 11和接收模块 12可以通过 IUR接口与相邻 RNC进行信息交换, 如果 GPS接收机安装在 NodeB上, 则本 RNC的发送模块 1 1和接收模块 12可以通过 IUB接口与 NodeB进行信息交换, 以获取 GPS定位辅助数据。
发送模块 11 可以在发送给安装 GPS接收机的相邻 RNC或基站的信息 交换初始化请求中, 在请求获取的 GPS 定位辅助数据类型中增加数据类型 GPS TOW, 从而使安装 GPS接收机的相邻 RNC或基站返回的信息交换初 始化响应以及信息报告中携带 GPS TOW, 即, 使接收模块 12能够从安装 GPS接收机的相邻 RNC或基站处获取 GPS TOW,从而获取模块 13可以根 据获取的 GPS TOW获取 GPS参考时间。其中,获 莫块 13根据 GPS TOW 等参数获取参考时间可参照现有协议, 在此不再赘述。 本发明提供的另一个较佳的实施例中,接收模块 12还可以用于: 接收安 装 GPS的设备返回的信息报告,信息报告中携带更新的 GPS定位辅助数据, 更新的 GPS定位辅助数据中包括更新的 GPS TOW。
其中, 信息交换初始化请求中还包括指示信息, 该指示信息用于指示信 息交换初始化响应或信息报告的上报周期。
其中, 数据类型中包括的数据类型 GPS TOW可以携带在信息交换初始 化请求中的 GPS信息信元中。
进一步的, GPS定位辅助数据中包括的 GPS TOW可以携带在信息交换 初始化响应中的请求数值信元中。
类似的, 更新的 GPS定位辅助数据中包括的更新的 GPS TOW可以携 带在信息报告中的请求数值信元中。
进一步的, 发送模块 11可以具体用于: 向安装 GPS的相邻 RNC发送 信息交换初始化请求; 或者, 向安装 GPS的基站发送信息交换初始化请求。
接收模块 12可以具体用于:从 IUR接口接收相邻 RNC返回的信息交换 初始化响应; 或者, 从 IUB接口接收基站返回的信息交换初始化响应。
接收模块 12还可以具体用于: 接收安装 GPS的相邻 RNC返回的信息 报告; 或者, 接收安装 GPS的基站返回的信息报告。
具体的, 作为一种可行的实施方式, 发送模块 11 可以通过 IUR口向安 装 GPS接收机的相邻 RNC发送信息交换初始化请求, 该信息交换初始化请 求中携带请求获取的 GPS 定位辅助数据类型, 该数据类型中包括数据类型 GPS TOW。 其中, 发送模块 11可以将数据类型 GPS TOW携带在信息交换 初始化请求中的 GPS信息信元的 GPS信息项 (GPS Information Item )子 信元中, 或者, 发送模块 11还可以将数据类型 GPS TOW携带在信息交换 初始化请求的其他信元中, 或者, 发送模块 11还可以将数据类型 GPS TOW 携带在信息交换初始化请求中 GPS信息信元中的其他子信元中, 或者,发送 模块 11 还可以在信息交换初始化请求中新增信元来携带数据类型 GPS TOW。
接收模块 12接收安装 GPS接收器的相邻 RNC返回的信息交换初始化 响应, 该信息交换初始化响应中携带 GPS定位辅助数据, GPS定位辅助数 据中包括数据类型 GPS TOW,由于 GPS定位辅助数据是实时更新的,因此, 安装 GPS接收器的相邻 RNC可以通过上报信息报告来携带更新的 GPS定 位辅助数据。具体的,相邻 RNC可以在信息交换初始化响应中的请求数值信 元中携带 GPS TOW,相邻 RNC可以在信息报告中的请求数值信元中携带更 新的 GPS TOW; 相应的,接收模块 12可以在信息交换初始化响应中的请求 数值信元中获取 GPS TOW, 并且可以在信息报告中的请求数值信元中获取 更新的 GPS TOW。可以理解的是,相邻 RNC还可以在信息交换初始化响应 的其他信元或新增信元中携带 GPS TOW, 也可以在信息报告的其他信元或 新增信元中携带更新的 GPS TOW; 相应的,接收模块 12可以在信息交换初 始化响应或者信息报告的其他信元或新增信元中获取 GPS TOW。
作为另一种可行的实施方式,发送模块 11还可以通过 IUB口向安装 GPS 接收机的基站发送信息交换初始化请求, 其中,发送模块 11可以将数据类型 GPS TOW携带在信息交换初始化请求的 GPS信息信元的 GPS信息项( GPS Information Item )子信元中,或者,发送模块 11还可以将数据类型 GPS TOW 携带在信息交换初始化请求的其他信元中, 或者, 发送模块 11还可以将数据 类型 GPS TOW携带在信息交换初始化请求中 GPS信息信元中的其他子信 元中, 或者,发送模块 11还可以在信息交换初始化请求中新增信元来携带数 据类型 GPS TOW。
安装 GPS接收器的基站向 RNC返回信息交换初始化响应, 由于现有技 术中信息交换初始化响应中的 GPS 定位辅助数据携带在信息交换初始化响 应中的请求数值信元中, 因此, 安装 GPS接收器的基站可直接在信息交换初 始化响应的请求数值信元中携带 GPS TOW。 安装 GPS接收器的基站向 RNC返回信息报告,由于 GPS定位辅助数据是实时更新的,因此,安装 GPS 接收器的基站可以通过向接收模块 12上报的信息报告来携带更新的 GPS定 位辅助数据。 具体的, 基站可以在信息交换初始化响应中的请求数值信元中 携带 GPS TOW, 基站可以在信息报告中的请求数值信元中携带更新的 GPS TOW; 相应的, 接收模块 12 可以在信息交换初始化响应中的请求数值信元 中获取 GPS TOW, 并且可以在信息报告中的请求数值信元中获取更新的 GPS TOW。可以理解的是,基站还可以在信息交换初始化响应的其他信元或 新增信元中携带 GPS TOW, 也可以在信息 4艮告的其他信元或新增信元中携 带更新的 GPS TOW; 相应的,接收模块 12可以在信息交换初始化响应或者 信息报告的其他信元或新增信元中获取 GPS TOW。
接收模块 12获取 GPS TOW后, 获取模块 13可以根据接收模块 12接 收到的信息交换初始化响应以及信息报告中原本携带的 GPS Week, 以及接 收模块 12接收的 GPS TOW获取 GPS参考时间。
本发明实施例提供的无线网络控制器, 为本发明实施例提供的全球定位 系统 GPS参考时间获取方法的执行设备,与本发明实施例提供的全球定位系 统 GPS参考时间获取方法相对应, 其具体方法执行过程可参考方法实施例。
本发明实施例提供的无线网络控制器, RNC与 GPS的设备进行信息交 换过程中请求获取数据类型 GPS TOW, 以实现 RNC根据 GPS TOW等辅 助数据获取 GPS参考时间, 从而提高 A-GPS 定位的成功率, 并且可以缩短 定位所需时间。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对其 限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通技术 人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或 者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技 术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权 利 要求
1、 一种全球定位系统 GPS参考时间获取方法, 其特征在于, 包括: 向安装 GPS的设备发送信息交换初始化请求,所述信息交换初始化请求 中携带请求获取的 GPS 定位辅助数据类型, 所述数据类型中包括数据类型 GPS周时间 GPS TOW;
接收所述安装 GPS的设备返回的信息交换初始化响应,所述信息交换初 始化响应中携带 GPS定位辅助数据, 所述 GPS定位辅助数据中包括 GPS
TOW;
根据所述 GPS定位辅助数据获取 GPS参考时间。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
接收所述安装 GPS的设备返回的信息报告,所述信息报告中携带更新的 GPS 定位辅助数据, 所述更新的 GPS 定位辅助数据中包括更新的 GPS TOW。
3、根据权利要求 1或 2所述的方法, 其特征在于, 所述信息交换初始化 请求中还包括指示信息, 所述指示信息用于指示所述信息交换初始化响应或 所述信息报告的上报周期。
4、 根据权利要求 1-3任一项所述的方法, 其特征在于, 所述数据类型中 包括的数据类型 GPS TOW携带在所述信息交换初始化请求中的 GPS信息 信元中。
5、 根据权利要求 1-3任一项所述的方法, 其特征在于, 所述 GPS定位 辅助数据中包括的 GPS TOW携带在所述信息交换初始化响应中的请求数值 信元中。
6、 根据权利要求 2或 3所述的方法, 其特征在于, 所述更新的 GPS定 位辅助数据中包括的更新的 GPS TOW携带在所述信息报告中的请求数值信 元中。
7、根据权利要求 1-3任一项所述的方法,其特征在于, 所述向安装 GPS 的设备发送信息交换初始化请求,接收所述安装 GPS的设备返回的信息交换 初始化响应包括:
无线网络控制器 RNC向与该 RNC相邻的且安装 GPS的 RNC发送信息 交换初始化请求, 接收所述相邻的且安装 GPS的 RNC返回的信息交换初始 化响应。
8、 根据权利要求 2或 3所述的方法, 其特征在于, 所述接收所述安装 GPS的设备返回的信息报告, 包括:
RNC接收与该 RNC相邻的且安装 GPS的 RNC返回的信息报告。
9、根据权利要求 1-3任一项所述的方法,其特征在于,所述向安装 GPS 的设备发送信息交换初始化请求,接收所述安装 GPS的设备返回的信息交换 初始化响应包括:
RNC向安装 GPS的基站发送信息交换初始化请求, 接收所述基站返回 的信息交换初始化响应。
10、 根据权利要求 2或 3所述的方法, 其特征在于, 所述接收所述安装 GPS的设备返回的信息报告, 包括:
RNC接收基站返回的信息报告。
11、 一种无线网络控制器, 其特征在于, 包括:
发送模块, 用于向安装 GPS的设备发送信息交换初始化请求, 所述信息 交换初始化请求中携带请求获取的 GPS定位辅助数据类型,所述数据类型中 包括数据类型 GPS周时间 GPS TOW;
接收模块, 用于接收所述安装 GPS的设备返回的信息交换初始化响应, 所述信息交换初始化响应中携带 GPS定位辅助数据, 所述 GPS定位辅助数 据中包括 GPS TOW;
获取模块, 用于根据所述 GPS定位辅助数据获取 GPS参考时间。
12、根据权利要求 11所述的无线网络控制器, 其特征在于, 所述接收模 块还用于:接收所述安装 GPS的设备返回的信息报告, 所述信息报告中携带 更新的 GPS 定位辅助数据, 所述更新的 GPS 定位辅助数据中包括更新的 GPS TOW。
13、 根据权利要求 11或 12所述的无线网络控制器, 其特征在于, 所述 信息交换初始化请求中还包括指示信息, 所述指示信息用于指示所述信息交 换初始化响应或所述信息报告的上报周期。
14、 根据权利要求 11-13任一项所述的无线网络控制器, 其特征在于, 所述数据类型中包括的数据类型 GPS TOW携带在所述信息交换初始化请求 中的 GPS信息信元中。
15、 根据权利要求 11-13任一项所述的无线网络控制器, 其特征在于, 所述 GPS定位辅助数据中包括的 GPS TOW携带在所述信息交换初始化响 应中的请求数值信元中。
16、 根据权利要求 12或 13所述的无线网络控制器, 其特征在于, 所述 更新的 GPS定位辅助数据中包括的更新的 GPS TOW携带在所述信息报告 中的请求数值信元中。
17、 根据权利要求 11-13任一项所述的无线网络控制器, 其特征在于, 所述发送模块具体用于:向安装 GPS的相邻 RNC发送信息交换初始化请求; 或者, 向安装 GPS的基站发送信息交换初始化请求。
18、 根据权利要求 11-13任一项所述的无线网络控制器, 其特征在于, 所述接收模块具体用于: 接收安装 GPS的相邻 RNC返回的信息交换初始化 响应或者信息报告; 或者,接收安装 GPS的基站返回的信息交换初始化响应 或者信息报告。
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