US Patent No. 9,402,212

METHOD FOR SRVCC SOLUTION


Patent No. 9,402,212
Issue Date July 26, 2016
Title Method For Srvcc Solution
Inventorship Curt Wong, Sammamish, WA (US)
Assignee NOKIA SOLUTIONS AND NETWORKS OY, Espoo (FI)

Claim of US Patent No. 9,402,212

1. A method comprising:
receiving a single radio voice call continuity request in a multi-session scenario for handover from packet switched access
of a source radio access network to circuit switched access of a target radio access network;

sending a query to determine whether last active session is a voice only or a video session;
receiving a response to said query indicating whether said last active session is a voice only or a video session;
reserving a call bearer from said target radio access network; and
reserving a voice call bearer from said target radio access network in case said last active session is a voice only session.