Search International and National Patent Collections

1. (WO2018041343) CODEC MODE HANDLING IN ENHANCED SINGLE RADIO VOICE CALL CONTINUITY SCENARIOS

Pub. No.:    WO/2018/041343    International Application No.:    PCT/EP2016/070420
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 31 01:59:59 CEST 2016
IPC: H04W 36/00
Applicants: NOKIA SOLUTIONS AND NETWORKS OY
Inventors: JYLHA-OLLILA, Markku Juhani
Title: CODEC MODE HANDLING IN ENHANCED SINGLE RADIO VOICE CALL CONTINUITY SCENARIOS
Abstract:
There are provided measures for codec mode handling in enhanced single radio voice call continuity scenarios. Such measures in a mobile communications network allowing a voice communication between a first communication endpoint and a second communication endpoint respectively using packet switched access or circuit switched access for said voice communication exemplarily comprise receiving a first invitation message indicative of an initiation of a voice communication by said first communication endpoint, said first invitation message including information on a first codec to be used in case said first communication endpoint uses packet switched access for said voice communication and said second communication endpoint uses packet switched access for said voice communication, adding, to said first invitation message, information on a second codec to be used in case said first communication endpoint uses circuit switched access for said voice communication and said second communication endpoint uses packet switched access for said voice communication, wherein said information on said second codec comprise a first available mode set for said second codec supported by said mobile communications network for circuit switched access of said first communication endpoint, and transmitting, towards said second communication endpoint, said invitation message.