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Method for inquiring route data

A routing and data technology, applied in electrical components, transmission systems, etc.

Inactive Publication Date: 2010-07-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the existing technology is that no standard protocol has been used so far in the process of RID querying routing data from LS, causing different operators or equipment to use private or Custom protocols query routing data, and there are intercommunication problems between operators or devices, which in turn increases network maintenance costs

Method used

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  • Method for inquiring route data
  • Method for inquiring route data
  • Method for inquiring route data

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1: use the SIP protocol to query routing data.

[0044] In this embodiment, the query request message adopts the INVITE request message defined by the SIP protocol, and the response message adopts the response message defined by the SIP protocol, wherein if the response message is a redirection response message, then the RID can obtain routing data, and if the response message is a non-redirection message response message, the RID cannot obtain routing data. The INVITE request message is a SIP message name, a message for initiating a call request; the redirection message is a redirection response message returned by the called device to the calling party after receiving the INVITE message, which carries some new address information , requiring the request to be sent or the initiator to initiate a request message to a new address to complete the request, and the redirection response message may also be called a 3XX redirection response message or a 300-type re...

Embodiment 2

[0131] Embodiment 2: use the H.323 protocol to query routing data.

[0132] In this embodiment, the LRQ-LCF message defined by the H.225.0 protocol in H.323 is used to perform routing data query between the RID entity and the LS based on H.323. Here, the RID needs to support the H.323 protocol. The LRQ-LCF message is a request message LRQ in the H.323 protocol and a successful response message LRJ to the request message.

[0133] Figure 4 It is a schematic diagram of the process of routing data query using the H.323 protocol, Figure 4 The process shown consists of the following steps:

[0134] Step 401: The RID uses the LRQ request message in the H.323 protocol to send a query message to the LS, and the query message includes the called party information.

[0135] The RID is a device such as a softswitch that can complete call signaling routing. The purpose of the RID sending the query message through the request message is to send the called information, such as the ca...

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PUM

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Abstract

This invention discloses a method for enquiring route data including: a, a RID sends an enquiry message containing called information to a LS by a request message in the standard protocol, b, the LS feeds back the response information to the RID by the response information, which can realize enquiry of route data by the standard protocol.

Description

technical field [0001] The invention relates to routing update and query technology, in particular to a method for querying routing data through a routing server in a next generation network (NGN, Next Generation Network). Background technique [0002] In an NGN network, when a device in the IP network, such as an IP user calls a device in the Circuit Switched Networks (CSN, Circuit Switched Networks) network such as a CSN user, the IP user first initiates a call to the network device in the IP domain, and then the IP domain The network device used as a request initiating device (RID, Request Initiating Device) routes the call of the IP user to a destination call routing device (DCRD, Destination Call Routing Device) that can connect to the CSN user, and the DCRD then routes the call to the CSN user. When the RID performs routing and finds that there is no required route locally, or according to local policies, data configuration, etc., the routing cannot be completed throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
Inventor 目库德N
Owner HUAWEI TECH CO LTD