WO2007003123A1 - A geographic location information inquiry method and system in packet domain - Google Patents
A geographic location information inquiry method and system in packet domain Download PDFInfo
- Publication number
- WO2007003123A1 WO2007003123A1 PCT/CN2006/001517 CN2006001517W WO2007003123A1 WO 2007003123 A1 WO2007003123 A1 WO 2007003123A1 CN 2006001517 W CN2006001517 W CN 2006001517W WO 2007003123 A1 WO2007003123 A1 WO 2007003123A1
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- WIPO (PCT)
- Prior art keywords
- network
- access
- terminal
- access information
- service node
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
- H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
- H04M3/5116—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing for emergency applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/561—Adding application-functional data or data for application control, e.g. adding metadata
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2242/00—Special services or facilities
- H04M2242/04—Special services or facilities for emergency applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2242/00—Special services or facilities
- H04M2242/30—Determination of the location of a subscriber
Definitions
- the present invention relates to the field of communications, and in particular, to a packet domain geographic location information query method and system. Background technique
- the geographic location information query service is a basic telecommunication service, and the packet domain telecommunications network currently under development must also be supported. It includes an awakening service with time factor requirements, a reservation call, a schedule reminder, a reservation meeting, etc., and the related service needs to be triggered according to the time set by the user. It also includes emergency call services with space elements. Let us take the emergency business as an example. Other businesses are similar.
- the access location of the calling user terminal is fixed, and the network service node handling the emergency service can directly route the emergency call to the nearest emergency call center set according to the static configuration data, that is, the query is based on the statically configured office routing data. Implicitly implemented.
- the access location of the calling user terminal can be moved, and the same user can access different central office network devices, so a centralized geographical location information database will be necessary, and the database provides the user and the nearest one. Correspondence of the emergency call center. At this time, the network service node handling the emergency service needs to initiate an inquiry to the database to obtain the routing address of the nearest emergency call center.
- SIP Session Initiation Protocol as the call control signaling for the packet telecommunications core network is one of the current technological trends, such as ITU-T and ETSI standards for NGN. Obviously, since the user in the packet domain has mobility, the inquiry to the emergency call center will adopt the second method described above.
- the network service node When the geolocation information database initiates an inquiry, the parameters carried in addition to the possible presence of the calling party ID and the emergency service short number (such as 119) must also have the current geographic location information of the calling user.
- the P-Access-Network-Info header field can be used to describe the geographical location information of the user access network, but the applicable access network only includes: "IEEE-802.11a" /
- 3GPP-UTRAN-TDD / "3GPP-CDMA2000”
- the applicable access network is WLAN and 3G access network, and there is no related technical solution for access to the fixed network.
- services such as wake-up service, reservation call, reservation meeting, and schedule reminder are triggered according to the time set by the user, and since the user in the packet domain has mobility, the user's local time zone and the network service node that processes these services
- the location time zone may be different.
- the network service node needs to query the user's local time zone.
- the time zone of the user's location is determined by the geographic location of the user, similar to the emergency call, in the SIP protocol, there is a lack of description of the geographical location information of the user accessing through the fixed network, so that the time zone of the user of the type is The query has brought difficulties.
- the present invention provides a method and system for querying a geographical location information of a packet domain, which is used to solve an emergency call initiated by a terminal that is connected to a fixed network in the prior art or a call or service data change request that triggers a service according to a time set by a user.
- the description of the geographical location information of the fixed access terminal is lacking, so that the problem of the time zone of the emergency call center or the terminal closest to the originating emergency call terminal cannot be accurately queried.
- the method of the invention comprises: A packet domain geographic location information query method, in which a terminal accesses a packet domain core network using SIP as a call control signaling through a fixed network, including the following steps:
- the terminal initiates a communication request
- the network service node acquires the access information according to the communication request, and sends the access information as a query parameter to the geographic location information database;
- the geographical location information database is queried by using the query parameter, and returns a query result.
- the communication request is a call request, and in the step A, the communication request carries the access type information.
- the access type information is set in a P-Access-Network-Info header field of a call request SIP message.
- the call request SIP message further carries an access information field.
- the network service node acquires the access information according to the call request SIP message.
- the access type and/or access information is set by a terminal or a network service node.
- the call request may be a SIP INVITE message, a SIP SUBSCRIBE message, or a SIP MESSAGE message.
- the terminal Before the step A, the terminal initiates a registration request, and the registration request SIP message carries the access information, and the network side stores the access information.
- the communication request is a call request, or a service data change request.
- the network service node acquires access information stored by the network side according to the communication request.
- the network side is a network database or a network service node.
- the access information includes a country code and/or a domestic destination code and/or an operator access network number and/or the terminal IP address and/or a network access node device number and/or a user media conversion node device.
- the system of the invention comprises:
- a packet domain geographic location information inquiry system comprising a terminal and a geographical location information database
- the terminal accesses the packet or the core network with the SIP as the call control signaling through the network service node of the fixed network, and further includes:
- a communication request message sending unit configured to initiate a communication request message
- the access information obtaining unit is located at the network service node, configured to acquire access information according to the communication request message, and send the access information as a query parameter to the geographic location information database;
- the geographical location information database queries the query parameters and returns the query result.
- the system further includes:
- the access type information setting unit is located at the terminal or the network service node, and is configured to set the access type information of the terminal in the communication request SIP message when the terminal initiates the communication request; the system further includes:
- the access information setting unit is located at the terminal or the network service node, and is configured to set the access information of the terminal in the communication request SIP message.
- the system further includes:
- the access information storage unit is located at the network side, and is configured to: when the terminal initiates the registration request, the storage terminal sends the access information carried in the registration request SIP message;
- the access information acquiring unit is located at the terminal or the network service node, and is configured to acquire access information stored by the network side according to the communication request message.
- the system further includes:
- the access information storage unit is located in a network database or a network service node.
- the query method and system of the present invention enable a terminal to enter a packet domain core network with SIP as call control signaling through a fixed network, and further use a P-Access-Network-Info header field as a fixed access type in the SIP protocol.
- the user's access geographical point is described in such a way that the time zone of the emergency call center or terminal closest to the emergency call terminal can be accurately queried.
- DRAWINGS Figure 1 is a schematic flow chart of the present invention
- FIG. 2 is a schematic diagram of a location domain information query system of a packet domain according to the present invention
- FIG. 3 is another schematic diagram of a packet domain geographic location information query system according to the present invention
- FIG. 4 is still another schematic diagram of a packet domain geographic location information query system according to the present invention.
- the present invention reuses the P-Access-Network-Info header field to describe an access geographic point for a user accessing through a fixed network, such that access to a fixed access terminal of a packet telecommunications core network using SIP as call control signaling
- the user can use the access geographic point carried by the header field to accurately query the geographic location information such as the emergency call center or the time zone of the user.
- the new description of the header field in the following embodiment merely highlights the parameter information that it must carry, and does not indicate that this is the only description.
- an access type field (access-type) is added in the P-Access-Network-Info header field: NGN-Fixed, indicating that this is a fixed user access.
- a field of terminal access information is further added in the P-Access-Network-Info header field.
- the number of the R164 format allocated to the user also determines the geographic access location of the user.
- the IP address assigned by the operator to the user will determine the geographic connection of the user.
- the country code (Countr Code) is the international long distance code of the country or region; the national purpose code (National Destionation Code) is the domestic long distance area code; the operator access network number refers to when there are multiple services providing the same service. The network number assigned to the operator when the operator.
- the POTS terminal since the POTS terminal must perform a media conversion through some kind of user media conversion node, it accesses the registration packet domain through some network access node.
- the user media conversion node provides mutual conversion functions of circuit voice and packet voice between the POTS terminal and the packet domain, and supports The codec function of the packet voice is provided; and the network access node provides the POTS terminal with the functions of registration authentication and authentication of the access packet domain. Since the location of the user media switching node and the network access node is relatively fixed, the operator can assign the device identification number to the device. Therefore, the format of the fixed-access-id can also be as follows:
- the setting of the network access node device number and the user media conversion node device number field may be set at the same time or may be selected, and the manner in which the method of the present invention is not affected is not affected.
- each of the above-mentioned forms of access information does not require that each field be valid. For example, if the country where the user is located is small, there is no long-distance area code or only one operator, the domestic destination code and operation The access network number may be an invalid field.
- Access-net-spec access-type *(SEMI access-info)
- Access-info cgi-3gpp I utran-cell-id-3 gpp I fixed-access-id I extension-access-info
- Extension-access-info gen-value
- FIG. 1 it is a schematic flowchart of the present invention.
- the illustration shows the flow of querying the routing address of the emergency call center closest to the user when the emergency access terminal initiates an emergency call:
- the fixed access terminal initiates an emergency call.
- the terminal dials an emergency service short number to initiate an emergency call.
- the terminal or the network access node joins the access type and the access information i3 ⁇ 4 ⁇ of the fixed access terminal in a P-Access-Network-Info header field of the SIP message (INVITE message) of the emergency call.
- the process is completed by the terminal; if the terminal does not have a SIP interface, the process is completed by the network access node having the SIP interface.
- the network access node is a network node that connects the fixed access terminal to the packet core network using SIP as call control signaling, and provides a SIP interface upward.
- the SIP message (INVITE message) is sent to the network service node by the network routing node.
- the network routing node is a network node in the packet core network that provides a routing connection function for SIP signaling. After receiving the SIP INVITE message from the network access node, the node sends the SIP INVITE message to the network service node that processes the corresponding service.
- the network service node processes the emergency call service, and according to the service attribute of the call, for example, according to the number analysis of 119, the service attribute is an emergency call, and the location information of the terminal needs to be queried.
- the network service node extracts the access information from the SIP message (INVITE message) and sends the access information to the geographic location information database.
- the network service node first analyzes the attributes of the emergency call according to the SIP INVITE message, and determines the geographic location information of the terminal to be queried.
- the network service node extracts the access information from the P-Access-Network-Info header field of the SIP INVITE message. Since the terminal user can also carry the access information through the P-Access-Network-Info header field in the registered SIP message (Register message) when registering, the network database or the network service node itself stores the access information, so the network The service node can also access the network database at this time. Or extract access information from its own data store.
- the network service node sends the access information, the emergency service short number, and the like as parameters of the query message to the appropriate geographic location information database.
- the geographic location information database queries the access information, the emergency service short number, and the like as query parameters.
- the geographic location information database sends the routing address of the emergency call center to the network service node.
- the geographic location information database is successfully queried, and the routing address of the emergency call center corresponding to the emergency service short number is sent to the network service node.
- the network service node sends the routing address of the emergency call center to the network routing node.
- the network routing node routes the SIP call request message to a routing address of the emergency call center.
- the terminal geographic access point carried in the P-Access-Network-Info header field is used to query the flow of the user's time zone.
- the emergency call center route closest to the user is queried with the emergency call of FIG.
- the flow of the addresses is very similar and will not be described in detail.
- the call request in the foregoing embodiment may be a SIP INVITE message, a SIP SUBSCRIBE message or a SIP MESSAGE message.
- the access information is stored by the network database or the network service node when the terminal initiates registration.
- the network service node receives the SIP message of the call, and according to the service attribute of the call, determines that the geographic location information of the terminal needs to be queried, and extracts the information from the network database or the network service node.
- the access information is described and sent as a parameter of the query message to the geographic location information database for related query. In this way, the access information can be more flexibly obtained, which brings greater convenience to the query.
- the network service node receives the changed service data request, and determines the geographical location information of the terminal to be queried according to the service attribute of the changed data. If the access data does not include the access information, the access information needs to be extracted from the network database or the network service node, and sent as a parameter of the query message to the geographical location information database for related query.
- FIG. 2 it is a schematic structural diagram of a location domain information query system of the packet domain of the present invention.
- the terminal 100 and the geographic location information database 300 are mainly included, and the terminal accesses the SIP through the network node 200 of the fixed network.
- the system includes:
- a communication request SIP message sending unit 400 configured to initiate a communication request SIP message
- the access information obtaining unit 500 is located at the network service node 200, and configured to acquire access information according to the communication request SIP message, and send the access information as a query parameter to the geographic location information database 300;
- the geographical location information database 300 queries the query parameters and returns a query result.
- the system can also be configured to:
- the access type information setting unit 600 is configured to set, in the communication request SIP message, the access type information of the terminal when the terminal 100 sends a call request SIP message or a registration request SIP message.
- the access type information setting unit 600 may be disposed in the terminal 100 or the network access node 200. As shown in FIG. 3, the access type information setting unit 400 is provided in the terminal 100.
- the system can also be configured to:
- the access information setting unit 700 is located at the terminal 100 or the network access node 200, and is configured to set access information of the terminal in the communication request SIP message.
- the system can also be configured to:
- the access information storage unit 800 is located in the network database 900 or the network service node 200, and is configured to: when the terminal initiates a service registration request, the storage terminal sends the registration request to carry in the SIP message. Enter information.
- FIG. 4 it is a scheme in which the access information storage unit is located in the network database 900.
- the P-Access-Network-Info header field in the SIP protocol is used to carry the fixed access type and the access information.
- SIP header fields are used to carry the fixed access type.
- the access information can also achieve the object of the present invention.
- the spirit and scope of the invention Thus, it is intended that the present invention cover the modifications and the modifications of the invention.
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Description
一种分组域地理位置信息查询方法及系统 技术领域
本发明涉及通信领域, 尤其涉及一种分组域地理位置信息查询方法及系 统。 背景技术
地理位置信息查询业务是一项基础电信业务, 当前正在发展的分组域电 信网也必须支持。 包括有时间要素需求的闹醒业务、 预约呼叫、 日程提醒、 预约会议等, 需^据用户设定的时间触发相关业务。 还包括有空间要素的 紧急呼叫业务等。 我们以紧急业务为例说明, 其他业务与此类似。
在紧急业务的应用中, 查询出离发起紧急呼叫的主叫用户最近的紧急呼 叫中心 ( ECC Emergency Call Center )是关键问题, 通常这种查询有两种方 式实现:
. 1 )主叫用户终端的接入位置固定, 处理紧急业务的网络业务节点可以直 接将紧急呼叫路由至根据静态配置数据设定的最近的紧急呼叫中心, 即查询 是根据静态配置的局路由数据隐式实现的。
2 )主叫用户终端的接入位置可移动, 同一个用户可以接入到不同的局端 网络设备, 因此一个集中的地理位置信息数据库将是必须的, 由该数据库提 供用户和与之最近的紧急呼叫中心的对应关系, 此时需要由处理紧急业务的 网络业务节点向该数据库发起查询得到最近的紧急呼叫中心的路由地址。
使用会话发起协议 ( SIP Session Initiation Protocol )作为分组电信核心 网的呼叫控制信令是当前的技术发展趋势之一, 如 ITU-T和 ETSI对 NGN的 标准制订。 显然, 由于分组域中用户具有了可移动性, 对紧急呼叫中心的查 询将会采用上述的第二种方式。
在第二种方式下, 由于分组域中用户具有了可移动性, 网络业务节点向
地理位置信息数据库发起查询时, 携带的参数除了可能存在的主叫用户标识 和紧急业务短号 (如 119 )夕卜, 还必须有主叫用户当前的地理位置信息。
目前, 在 SIP协议中, 可以通过 P-Access-Network-Info头域来描述用户 接入网络地理位置信息, 但适用的接入网络仅包括: "IEEE-802.11a" /
"IEEE-802.1 lb" / "3GPP-GERAN" / "3GPP-UTRAN-FDD" I
"3GPP-UTRAN-TDD" / "3GPP-CDMA2000" , 即其适用的接入网络为 WLAN 和 3G接入网, 而对固定网络的接入则没有相关的技术方案。
在 SIP协议中, 缺乏对通过固定网络接入的用户的地理位置信息的描述, 使得对该类型用户的最近紧急呼叫中心的查询带来了困难。
同时, 闹醒业务、 预约呼叫、 预约会议、 日程提醒等业务都是依据用户 设定时间而触发的, 而由于分组域中用户具有了可移动性, 用户所在地时区 和处理这些业务的网络业务节点所在地时区就可能会不同, 此时为了准确的 在用户设定时间触发这些业务, 网络业务节点需要查询出用户所在地时区。
由于用户所在地时区是由用户的地理位置所决定的, 因此和紧急呼叫类 似的, 在 SIP协议中, 缺乏对通过固定网络接入的用户的地理位置信息的描 述, 使得对该类型用户所在时区的查询带来了困难。
因此, 不管是紧急呼叫, 还是依据用户设定时间触发的业务, 都必须在 以 SIP为呼叫控制信令的分組电信核心网中, 提供一种对固定接入用户的地 理位置信息查询的方法。 发明内容
本发明提供一种分组域地理位置信息查询方法及系统, 用以解决现有技 术中存在的固定网络接入的终端发起的紧急呼叫或依据用户设定时间触发业 务的呼叫或业务数据更改请求时 , 缺乏对固定接入终端的地理位置信息的描 述, 以致不能准确地查询离发起紧急呼叫终端最近的紧急呼叫中心或终端所 在时区的问题。
本发明方法包括:
一种分组域地理位置信息查询方法, 终端通过固定网络接入以 SIP作为 呼叫控制信令的分组域核心网, 包括以下步骤:
A、 终端发起通信请求;
B、 网络业务节点根据所述通信请求获取接入信息, 将所述接入信息作为 查询参数发送给地理位置信息数据库;
C、 所述的地理位置信息数据库以所述的查询参数进行查询, 并返回查询 结果。
所述通信请求是呼叫请求, 所述步骤 A中, 所述通信请求中, 携带接入 类型信息。
所述接入类型信息, 设置于呼叫请求 SIP 消息的 P-Access-Network-Info 头域中。
所述步骤 A中, 呼叫请求 SIP消息中还携带有接入信息字段, 所述步骤 B中, 所述网络业务节点根据所述呼叫请求 SIP消息获取所述接入信息。
所述的步骤 A或 B中, 所述的接入类型和 /或接入信息, 由终端或者网络 业务节点设置。
所述呼叫请求可以为 SIP INVITE消息、 SIP SUBSCRIBE消息或者 SIP MESSAGE消息。
所述步骤 A之前, 所述终端发起注册请求, 注册请求 SIP消息中, 携带 接入信息, 网络侧存储所述接入信息。
所述通信请求是呼叫请求、 或业务数据更改请求, 所述步骤 B中, 所述 网络业务节点根据所述通信请求, 获取网络侧存储的接入信息。
所述网络侧, 是网络数据库或者网絡业务节点。
所述的接入信息, 包括国家代码和 /或国内目的代码和 /或运营商接入网号 和 /或所述终端 IP地址和 /或网络接入节点设备号和 /或用户媒体转换节点设备 本发明系统包括:
一种分组域地理位置信息查询系统, 包括终端和地理位置信息数据库,
所述终端通过固定网络的网络业务结点接入以 SIP作为呼叫控制信令的分组 或核心网, 还包括:
通信请求消息发送单元, 用于发起通信请求消息;
接入信息获取单元, 位于所述网络业务节点, 用于根据所述通信请求消 息获取接入信息, 并将所述接入信息作为查询参数发送给地理位置信息数据 库;
所述的地理位置信息数据库以所述的查询参数进行查询, 并返回查询结 果。
所述的系统, 还包括:
接入类型信息设置单元, 位于所述终端或网络业务节点, 用于在终端发 起通信请求时, 在通信请求 SIP消息中, 设置所述终端的接入类型信息; 所述的系统, 还包括:
接入信息设置单元, 位于所述终端或网络业务节点, 用于在通信请求 SIP 消息中, 设置所述终端的接入信息。
所述的系统, 还包括:
接入信息存储单元, 位于网络侧, 用于在终端发起注册请求时, 存储终 端发送注册请求 SIP消息中所携带的接入信息;
接入信息获取单元, 位于所述终端或者网络业务节点, 用于在根据所述 通信请求消息, 获取网络侧存储的接入信息。
所述的系统, 还包括:
所述接入信息存储单元, 位于网络数据库或者网络业务节点。
本发明的查询方法及系统, 使得终端通过固定网 矣入以 SIP作为呼叫 控制信令的分组域核心网, 进一步在 SIP协议中,使用 P-Access-Network-Info 头域来作为固定接入类型用户的接入地理点的描述方式, 使得可以准确查询 出距离发起紧急呼叫终端最近的紧急呼叫中心或终端所在时区。 附图说明
图 1为本发明的流程示意图;
图 2为本发明分组域地理位置信息查询系统示意图;
图 3为本发明分组域地理位置信息查询系统的另一个示意图; , 图 4为本发明分組域地理位置信息查询系统的再一个示意图。 具体实施方式
下面结合说明书附图来说明本发明的具体实施方式。
本发明将重用 P-Access-Network-Info头域来描述对通过固定网络接入的 用户的接入地理点, 使得接入至使用 SIP作为呼叫控制信令的分组电信核心 网的固定接入终端用户, 可以采用该头域携带的接入地理点准确查询出距离 用户最近的紧急呼叫中心或用户所在时区等地理位置信息。 需要说明的是, 本实施例下述中对该头域的新增描述仅为突出其所必须携带的参数信息, 并 不表示这是唯一的描述方式。
本实施例需要在 P-Access-Network-Info 头域中增加一种接入类型字段 ( access-type ) : NGN-Fixed, 表示这是固定用户接入。
本实施例在 P-Access-Network-Info头域中还增加一个终端接入信息的字 段。在传统 PSTN网络中,对用户分配的 R164格式的号码其实也决定了该用 户的地理接入地, 类似的在分组电信网中, 运营商对用户分配的 IP地址将能 决定该用户的地理接入地, 因此, 可以在 P-Access-Network-Info头域中增加 一种接入信息(access-info ): fixed-access-id, 其组成格式可以采用如下方式: 国家代码 + 国内目的代码 + 运营商接入网号 + IP地址;
其中, 一般的, 国家代码(Countr Code )即所在国或地区的国际长途代 码; 国内目的代码 ( National Destionation Code ) 即国内长途区号; 运营商接 入网号是指当有多个提供相同服务的运营商时, 为运营商分配的网号。
另外, 由于 POTS终端一定是通过某种用户媒体转换节点, 进行媒体转 换后, 再通过某种网络接入节点, 接入注册分组域的。 其中, 用户媒体转换 节点在 POTS终端和分组域间提供电路话音和分组话音的相互转换功能, 支
持分组语音的编解码功能; 而网络接入节点向 POTS终端提供接入分組域的 注册认证鉴权等功能。 由于用户媒体转换节点和网络接入节点的位置相对比 较固定, 可以由运营商为其分配设备标识号, 因此 fixed-access-id的組成格式 也可以采用如下方式:
国家代码 + 国内目的代码 + 运营商接入网号 + 网^ 入节点设备 号 + 用户媒体转换节点设备号;
这里网络接入节点设备号和用户媒体转换节点设备号字段的设置, 既可 以是同时设置, 也可以是选择设置, 采用何种方式对本发明的方案没有影响。
由于各地网络形态及大小的不同, 上述接入信息的组成格式中, 并不要 求每个字段都有效存在, 如用户所在国家很小, 没有长途区号或只有一个运 营商, 则国内目的代码和运营商接入网号就可能会是无效的字段。
新增上述参数后的 P-Access-Network-Info头域格式可以是如下形式: P-Access-Network-Info = "P-Access-Network-Info" HCOLON
access-net-spec
access-net-spec = access-type *(SEMI access-info)
access-type = "IEEE-802.11a" I "IEEE-802.1 lb" I
"3GPP-GERAN" I "3GPP-UTRAN-FDD" I "3GPP-UTRAN-TDD" /
"3GPP-CDMA2000" I
"NGN-Fixed" / token
access-info = cgi-3gpp I utran-cell-id-3 gpp I fixed-access-id I extension-access-info
extension-access-info = gen-value
cgi-3gpp = "cgi-3gppM EQUAL
(token I quoted-string)
utran-cell-id-3 gpp = "utran-cell-id-3gpp" EQUAL
(token I quoted-string)
fixed-access-id = "fixed-access-id" EQUAL
(token I quoted-string)
如图 1所示, 是本发明的一个流程示意图, 图示给出了固定接入终端用 户发起紧急呼叫时, 查询距离用户最近的紧急呼叫中心的路由地址的流程:
51、 固定接入终端发起紧急呼叫。
终端拨一个紧急业务短号, 发起紧急呼叫。
52、所述终端或网络接入节点在所述紧急呼叫的 SIP消息(INVITE消息) 的 P-Access-Network-Info头域中加入所述固定接入终端的接入类型和接入信 i¾ α
如果终端具有 SIP接口,则由终端完成此过程;如果终端不具有 SIP接口, 则由具有 SIP接口的网络接入节点完成此过程。
网络接入节点是将固定接入终端接入至使用 SIP作为呼叫控制信令的分 组核心网的网络节点, 向上提供 SIP接口。
53、 所述 SIP消息(INVITE消息)通过网络路由节点发送至网络业务节 点。
网络路由节点是分组核心网中为 SIP信令提供路由接续功能的网络节点, 该节点接收到来自网络接入节点的 SIP INVITE消息后, 将其发送给处理相应 业务的网络业务节点。 在图 1中, 网络业务节点处理紧急呼叫业务, 才艮据该 呼叫的业务属性, 比如根据 119等号码分析得到业务属性为紧急呼叫, 判断 需要查询终端的地理位置信息。
54、 网络业务节点从所述 SIP消息(INVITE消息) 中提取出所述接入信 息发送给地理位置信息数据库。
网絡业务节点首先根据 SIP INVITE消息分析出紧急呼叫的属性, 判断出 需要查询终端的地理位置信息。
网络业务节点从 SIP INVITE消息的 P-Access-Network-Info头域中提取出 接入信息。 由于终端用户在注册时也可以在注册的 SIP消息( Register消息) 中通过 P-Access-Network-Info头域携带接入信息, 从而由网络数据库或网络 业务节点自身存储下接入信息, 因此网络业务节点此时也可以从网络数据库
或自身的数据存储中提取接入信息。
网络业务节点将接入信息、 紧急业务短号等作为查询消息的参数, 发送 给合适的地理位置信息数椐库。
55、 地理位置信息数椐库以所述的接入信息、 紧急业务短号等作为查询 参数进行查询。
由于不同的紧急业务会有不同的紧急呼叫中心, 如火警和急救, 所以需 要将紧急业务短号作为查询参数之一。
56、 地理位置信息数据库将紧急呼叫中心的路由地址发送给网络业务节 点。
地理位置信息数据库查询成功, 将和紧急业务短号对应的紧急呼叫中心 的路由地址发送给网络业务节点。
57、 网络业务节点将所述的紧急呼叫中心的路由地址发送给网络路由节 点。
58、 网络路由节点将所述 SIP呼叫请求消息向所述紧急呼叫中心的路由 地址进行路由接续。
而通过 P-Access-Network-Info头域携带的终端地理接入点, 查询出用户 所在时区的流程, 如前所述可以看出, 和图 1的紧急呼叫查询距离用户最近 的紧急呼叫中心路由地址的流程是非常类似的, 本发明不再详细描述。
上述实施例中所述呼叫请求可以为 SIP INVITE消息、 SIP SUBSCRIBE 消息或者 SIP MESSAGE消息。
本发明的方案中, 还存在一种情况, 就是该接入信息, 在终端发起注册 时就由网络数据库或者网络业务节点存储。 后续在终端发起 SIP呼叫请求时, 网络业务节点接收到所述呼叫的 SIP消息, 根据所述呼叫的业务属性, 判断 需要查询终端的地理位置信息, 则从网络数据库或者网絡业务节点中提取出 所述接入信息, 并将其作为查询消息的参数发送给地理位置信息数据库进行 相关的查询。 这样, 可以更加灵活的获知接入信息, 为查询带来更大的方便。
另外, 当用户可以通过业务自助管理客户端, 如 Web客户端, 自行更改
业务数据时, 如登记或修改闹醒服务的闹醒时间, 网络业务节点接收到更改 的业务数据请求, 根据更改数据的业务属性, 判断需要查询终端的地理位置 信息, 此时由于网络业务节点接收到的更改数据中不包括接入信息, 则需要 从网络数据库或者网络业务节点中提取出所述接入信息, 并将其作为查询消 息的参数发送给地理位置信息数据库进行相关的查询。
如图 2所是, 是本发明分组域地理位置信息查询系统的结构示意图, 从 图中可见, 主要包括终端 100和地理位置信息数据库 300, 所述终端通过固定 网络的网络节点 200接入以 SIP作为呼叫控制信令的分组域核心网, 该系统 包括:
通信请求 SIP消息发送单元 400, 用于发起通信请求 SIP消息;
接入信息获取单元 500, 位于所述网络业务节点 200, 用于根据所述通信 请求 SIP 消息获取接入信息, 并将所述接入信息作为查询参数发送给地理位 置信息数据库 300;
所述的地理位置信息数据库 300以所述的查询参数进行查询, 并返回查 询结果。
较佳地, 该系统还可以设置:
接入类型信息设置单元 600, 用于在终端 100发送呼叫请求 SIP消息、或 注册请求 SIP消息等通信请求时,在该通信请求 SIP消息中 ,设置所述终端的 接入类型信息;
所述接入类型信息设置单元 600,可以设置于所述终端 100或网络接入节 点 200。如图 3所示,是该接入类型信息设置单元 400设置于终端 100的方案。
较佳的, 该系统还可以设置:
接入信息设置单元 700, 位于所述终端 100或网络接入节点 200, 用于在 通信请求 SIP消息中, 设置所述终端的接入信息。
较佳地, 该系统还可以设置:
接入信息存储单元 800, 位于网络数据库 900或者网络业务节点 200, 用 于在终端发起业务注册请求时, 存储终端发送注册请求 SIP 消息中携带的接
入信息。 如图 4所示, 是该接入信息存储单元位于网络数据库 900的方案。 在本发明的前述实施例中, 采用了 SIP协议中的 P-Access-Network-Info 头域来携带固定接入类型和接入信息, 显然, 如果采用其它的 SIP头域来携 带固定接入类型和接入信息, 同样可以达到本发明的目的。 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。
Claims
1、 一种分组域地理位置信息查询方法, 终端通过固定网络接入以 SIP作 为呼叫控制信令的分组域核心网, 包括以下步骤:
A、 终端发起通信请求;
B、 网络业务节点根据所述通信请求获取接入信息, 将所述接入信息作为 查询参数发送给地理位置信息数据库;
C、 所述的地理位置信息数据库以所述的查询参数进行查询, 并返回查询 结果。
2、 如权利要求 1所述的方法, 其特征在于, 所述通信请求是呼叫请求, 所述步骤 A中, 所述通信请求中, 携带接入类型信息。
3、 如权利要求 2所述的方法, 其特征在于, 所述接入类型信息, 设置于 呼叫请求 SIP消息的 P-Access-Network-Info头域中。
4、 如权利要求 2或 3所述的方法, 其特征在于, 所述步骤 A中, 呼叫请 求 SIP消息中还携带有接入信息字段, 所述步骤 B中, 所述网络业务节点根 据所述呼叫请求 SIP消息获取所述接入信息。
5、 如权利要求 4所述的方法, 其特征在于, 所述的步骤 A或 B中, 所述 的接入类型和 /或接入信息, 由终端或者网络业务节点设置。
6、如权利要求 2或 3所述的方法,其特征在于,所述呼叫请求可以为 SIP INVITE消息、 SIP SUBSCRIBE消息或者 SIP MESSAGE消息。
7、 如权利要求 1所述的方法, 其特征在于, 所述步骤 A之前, 所述终端 发起注册请求, 注册请求 SIP 消息中, 携带接入信息, 网络侧存储所述接入 信息。
8、 如权利要求 7所述的方法, 其特征在于, 所述通信请求是呼叫请求、 或业务数据更改请求, 所述步骤 B中, 所述网络业务节点根据所述通信请求, 获取网络侧存储的接入信息。
9、 如权利要求 7所述的方法, 其特征在于, 所述网络侧, 是网络数据库
或者网络业务节点。
10、 如权利要求 1 所述的方法, 其特征在于, 所迷的接入信息, 包括国 家代码和 /或国内目的代码和 /或运营商接入网号和 /或所述终端 IP地址和 /或网 矣入节点设备号和 /或用户媒体转换节点设备号。
11、 一种分組域地理位置信息查询系统, 包括终端和地理位置信息数据 库, 所述终端通过固定网络的网絡业务结点接入以 SIP作为呼叫控制信令的 分组域核心网, 其特征在于, 还包括:
通信请求消息发送单元, 用于发起通信请求消息;
接入信息获取单元, 位于所述网络业务节点, 用于根据所述通信请求消 息获取接入信息, 并将所述接入信息作为查询参数发送给地理位置信息数据 库;
所述的地理位置信息数据库以所述的查询参数进行查询, 并返回查询结 果。
12、 如权利要求 11所述的系统, 其特征在于, 还包括:
接入类型信息设置单元, 位于所述终端或网络业务节点, 用于在终端发 起通信请求时, 在通信请求 SIP消息中, 设置所述终端的接入类型信 '息。
13、 如权利要求 11所述的系统, 其特征在于, 还包括:
接入信息设置单元, 位于所述终端或网络业务节点, 用于在通信请求 SIP 消息中, 设置所述终端的接入信息。
14、 如权利要求 11所述的系统, 其特征在于, 还包括:
接入信息存储单元, 位于网络侧, 用于在终端发起注册请求时, 存储终 端发送注册请求 SIP消息中所携带的接入信息;
接入信息获取单元, 位于所述终端或者网络业务节点, 用于在根据所述 通信请求消息, 获取网絡侧存储的接入信息。 .
15、 如权利要求 14所述的系统, 其特征在于, 还包括:
所述接入信息存储单元, 位于网络数据库或者网络业务节点。
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- 2006-06-30 WO PCT/CN2006/001517 patent/WO2007003123A1/zh active Application Filing
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Cited By (2)
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EP2073450A1 (fr) * | 2007-12-19 | 2009-06-24 | France Telecom | Procédé de communication entre un terminal et un réseau de communication |
FR2925810A1 (fr) * | 2007-12-19 | 2009-06-26 | France Telecom | Procede de communicatin entre un terminal et un reseau de communication |
Also Published As
Publication number | Publication date |
---|---|
EP1906638A4 (en) | 2009-03-04 |
EP1906638A1 (en) | 2008-04-02 |
CN1889606B (zh) | 2011-04-06 |
CN1889606A (zh) | 2007-01-03 |
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