The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2021
Filed:
Sep. 27, 2018
Qualcomm Incorporated, San Diego, CA (US);
Shravan Kumar Raghunathan, San Diego, CA (US);
Srinivasan Balasubramanian, San Diego, CA (US);
Parthasarathy Krishnamoorthy, San Diego, CA (US);
Chetan Chakravarthy, San Diego, CA (US);
Yonas Kidane, San Diego, CA (US);
Arvindhan Kumar, San Diego, CA (US);
Kumarabhijeet Singh, San Diego, CA (US);
Krishna Rao Mandadapu, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
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.