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:
Sep. 04, 2018
Filed:
Feb. 26, 2014
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Venkateswara Rao Manepalli, Bangalore, IN;
Subhasish Karmakar, Bangalore, IN;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method and a system to improve circuit switched fall back (CSFB) performance specified in the 3generation partnership project (3GPP) standard are provided. The system includes a user equipment (UE) to collect a neighbor frequency list from the network along with the redirection frequency transmitted by the long term evolution (LTE) network in response to extended service request (ESR) initiated by the UE. The UE selects the best frequency on which the UE can camp for CS call by applying additional offset criteria over the existing S-criteria during selection of serving frequency that effectively increases CSFB call success rate. The method enables the UE to override timer Tand parameter Nin the radio resource control (RRC) connection establishment process during a CSFB call procedure and effectively utilize the ESR time to attempt maximum possible RRC connection requests.