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Method for speeding up wireless one-key-through calling establishment

A call establishment, wireless technology, applied in the direction of radio/induction link selection and arrangement, selection of devices, etc., can solve the problems of large core network delay and large core network delay contribution, so as to achieve small changes, save interaction, and shorten calls The effect of build time

Active Publication Date: 2009-12-02
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PTT is a service that has strict requirements on time delay, and the size of the time delay directly affects the development of PTT service. Analysis of the time delay of PTT service shows that although the time delay mainly comes from the air interface part , but the delay generated by the core network is also quite large (accounting for 1 / 3 of the entire delay)
Especially the process of finding the location information of the called user contributes a lot to the delay of the core network

Method used

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  • Method for speeding up wireless one-key-through calling establishment
  • Method for speeding up wireless one-key-through calling establishment
  • Method for speeding up wireless one-key-through calling establishment

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Embodiment Construction

[0032] In order to enable the wireless push-to-talk server to quickly obtain the location information of the called user and speed up the establishment of the entire call, the following steps are proposed:

[0033] 1: Pre-acquire the information of the called user and cache it in the wireless push-to-talk server B

[0034] Such as figure 2 Shown: After the wireless push-to-talk terminal completes the registration on the service call session control function, the service call session control function of its service informs the user's service call server B with a NOTIFY message, and the wireless push to talk Server B queries the home user server for the location information of the user, and creates a location information cache area for the user to cache the location information obtained from the home user server.

[0035] 2: Update to the cached information after the location information of the called user changes

[0036] Due to the mobility of the user, the service call session c...

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PUM

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Abstract

The invention provides an accelerating method to establish the call of the wireless one-key done. In the non-call time, the server of the wireless one-key can get the information of the called users and remember it, When the called user location changes it can update the memory information; The program has the following advantages: 1. the call establishing speed is accelerated because the it can save the alternation between the call establishment and the user location server and the inquiring time; 2. it needn't change the original network structure, Using the ISC between the IP multimedia and the application server can finish the process after changing; 3. it has less change to the Wireless one-key done server.

Description

Technical field [0001] The invention relates to a method for accelerating the establishment of a wireless push-to-talk call, and relates to the wireless push-to-talk technology of the IP multimedia domain (IMS) technology defined by 3GPP. Background technique [0002] Push-to-talk wireless is a service that requires relatively strict delay. The size of the delay directly affects the development of the push-to-talk wireless service. Analysis of the delay of the push-to-talk wireless service found that the delay mainly comes from the air interface part. , But the delay generated by the core network is also quite large (accounting for 1 / 3 of the total delay). In particular, the process of finding the location information of the called user contributes significantly to the delay of the core network. [0003] figure 1 It is a typical called process (core network part) based on 3GPP Release 5 (3GPP / R5) IP multimedia domain wireless push-to-talk service. This process describes the wir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/28
Inventor 田兴银吕玲许佰魁
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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