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SIP TIMER MODIFICATION TO SUPPORT IMS CALL FALLBACK

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SIP TIMER MODIFICATION TO SUPPORT IMS CALL FALLBACK

PCT NATIONAL PHASE APPLICATION

Published

date

Filed on 30 October 2024

Abstract

A user equipment (UE) is configured to initiate a packet-switched call via a first radio access technology (RAT) and start a plurality of session initiation protocol (SIP) timers responsive to initiating the call. Responsive to at least one condition being present with initiation of a fallback process for the call, the UE is configured to restart a set of the plurality of SIP timers for the fallback process, wherein the set can include some or all of the plurality of SIP timers started with initiation of the call. Each SIP timer has a corresponding default timer duration, and in some instances restarting a SIP timer of the set includes restarting the SIP timer with a starting duration equal to a sum of the default timer duration and an offset so that the restarted SIP timer provides for a greater duration than when originally started to better accommodate the fallback process.

Patent Information

Application ID202447083115
Date of Application30/10/2024
Publication Number45/2024

Inventors

NameAddressCountryNationality
CHUNG, Chi-WenNo. 7 XinYi Road Section 5 Taipei, 110TaiwanTaiwan
CHUEH, Han-JungNo. 7 XinYi Road Section 5 Taipei, 110TaiwanTaiwan

Applicants

NameAddressCountryNationality
GOOGLE LLC1600 Amphitheatre Parkway Mountain View, California 94043U.S.A.U.S.A.

Documents

NameDate
202447083115-COMPLETE SPECIFICATION [30-10-2024(online)].pdf30/10/2024
202447083115-DECLARATION OF INVENTORSHIP (FORM 5) [30-10-2024(online)].pdf30/10/2024
202447083115-DRAWINGS [30-10-2024(online)].pdf30/10/2024
202447083115-FORM 1 [30-10-2024(online)].pdf30/10/2024
202447083115-FORM 18 [30-10-2024(online)].pdf30/10/2024
202447083115-POWER OF AUTHORITY [30-10-2024(online)].pdf30/10/2024
202447083115-PRIORITY DOCUMENTS [30-10-2024(online)].pdf30/10/2024
202447083115-REQUEST FOR EXAMINATION (FORM-18) [30-10-2024(online)].pdf30/10/2024
202447083115-STATEMENT OF UNDERTAKING (FORM 3) [30-10-2024(online)].pdf30/10/2024

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