- Patent Title: Handling IMS and CSFB call at user equipment in wireless network
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Application No.: US16265528Application Date: 2019-02-01
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Publication No.: US10750411B2Publication Date: 2020-08-18
- Inventor: Srinivas Chinthalapudi , Prasad Basavaraj Dandra
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd
- Current Assignee: Samsung Electronics Co., Ltd
- Current Assignee Address: KR
- Agency: The Farrell Law Firm, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1ba85d02 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7a0130c6
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04L29/06 ; H04W76/18 ; H04W80/04

Abstract:
Methods and apparatuses are provided for controlling a voice call at a user equipment (UE) in a wireless network. A method includes transmitting, to a network entity, a tracking area update (TAU) service request for a subsystem (IMS) initiation; receiving, from the network entity, a TAU service reject message; and in response to the TAU service reject message, stopping a circuit switch (CS) fall back call in at least one legacy radio technology (RAT).
Public/Granted literature
- US20190166525A1 HANDLING IMS AND CSFB CALL AT USER EQUIPMENT IN WIRELESS NETWORK Public/Granted day:2019-05-30
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