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Group domain geographic location information query method

A technology of geographic location information and grouping domain, which is applied in the field of querying geographic location information in the grouping domain, and can solve the problems of lack of description of geographic location information of fixed access terminals, inability to accurately query the emergency call center or the time zone where the terminal is located.

Inactive Publication Date: 2011-04-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention provides a method for querying geographic location information in a packet domain, which is used to solve the problems existing in the prior art when an emergency call initiated by a terminal connected to a fixed network or a service call or service data change request is triggered according to the time set by the user. The description of the geographical location information of the fixed access terminal makes it impossible to accurately query the emergency call center closest to the terminal that initiates the emergency call or the time zone where the terminal is located

Method used

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  • Group domain geographic location information query method
  • Group domain geographic location information query method

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Embodiment Construction

[0031] The specific embodiments of the present invention will be described below with reference to the drawings in the specification.

[0032] The present invention reuses the P-Access-Network-Info header field to describe the access geographic point for users accessing through the fixed network, so that it can access the fixed access terminal of the packet telecommunication core network using SIP as call control signaling The user can use the access geographic point carried in the header field to accurately query geographic information such as the nearest emergency call center or the user's time zone. It should be noted that the newly added description of the header field in the following in this embodiment only highlights the parameter information that it must carry, and does not mean that this is the only description method.

[0033] In this embodiment, an access-type field (access-type) needs to be added to the P-Access-Network-Info header field: NGN-Fixed, which indicates that...

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Abstract

The invention discloses a geographic location information inquiry method in a packet domain. A terminal accesses the packet domain core network which uses a Session Initiation Protocol (SIP) as a call control signaling via a fixed network, including the following steps: A. a network service node receives a communication request initiated by the terminal; B. the network service node acquires access information of the terminal from the communication request, and sends the access information as a parameter of inquiry information to a geographic location information database; C. the geographic location information database performs the inquiry using the inquiry parameter, and returns back inquiry results. The present invention uses the P-Access-Network-Info head domain as the description form of the geographic access point for users of fixed access type, which can accurately check out various geographic location information of the user.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for querying geographic location information in a packet domain. Background technique [0002] The geographic location information query service is a basic telecommunication service, and the packet domain telecommunication network currently under development must also support it. Including wake-up services with time element requirements, scheduled calls, schedule reminders, scheduled conferences, etc., need to trigger related services according to the time set by the user. It also includes emergency call services with space elements, etc. We take emergency business as an example, and other businesses are similar. [0003] In the application of emergency services, it is a key issue to query the emergency call center (ECC Emergency Call Center) closest to the calling user who initiated the emergency call. Usually, there are two ways to realize this query: [0004] 1) The acces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M3/493
CPCH04L67/2804H04M7/006H04M2242/04H04M2242/30H04M3/5116H04L67/561
Inventor 施有铸
Owner HUAWEI TECH CO LTD
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