Invention Grant
- Patent Title: Voice call management techniques in wireless communications
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Application No.: US16144696Application Date: 2018-09-27
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Publication No.: US11006327B2Publication Date: 2021-05-11
- Inventor: Shravan Kumar Raghunathan , Srinivasan Balasubramanian , Parthasarathy Krishnamoorthy , Chetan Chakravarthy , Yonas Kidane , Arvindhan Kumar , Kumarabhijeet Singh , Krishna Rao Mandadapu
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Holland & Hart LLP
- Agent Linda G. Gunderson
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W36/30 ; H04W76/19 ; H04L29/06 ; H04M1/253 ; H04W28/02 ; H04W76/18 ; H04W72/12

Abstract:
Methods, systems, and devices for wireless communications are described that provide for call continuity following radio link failure (RLF) through re-establishment of a voice call using a same or different radio access technology (RAT) before the call is dropped. Upon detection of RLF on a connection supporting a voice call, a UE may initiate a drop call timer and scan for available connections. The voice call may be attempted to be re-established if a connection is available on using a RAT of an existing connection. The voice call in such cases may continue without the call being dropped. Upon expiration of the drop call timer, the UE may attempt to establish a connection using a RAT identified during the duration of the drop call timer.
Public/Granted literature
- US20190150039A1 VOICE CALL MANAGEMENT TECHNIQUES IN WIRELESS COMMUNICATIONS Public/Granted day:2019-05-16
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