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:
Feb. 02, 2016
Filed:
Sep. 25, 2014
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Debasish Sarkar, Irvine, CA (US);
Ayan Sen, Gurgaon, IN;
Jaspal Singh, Gurgaon, IN;
Narendra Kumar Singh, Delhi, IN;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A system and method to sustain an on-going voice call or other service during a handover, HO, by preventing the handover to a target cell that fails to admit all the mandatory Radio Access Bearers, RABs, as part of supporting one or more Quality of Service Class Identifiers, QCIs, associated with the ongoing service. When the source evolved Node B, eNB, prevents the HO to the best target cell, it may attempt the HO to the next best target cell. If the next best cell fails to admit all the mandatory RABs and if there are no other intra-LTE or inter-LTE cells available for HO, the source eNB may perform an inter-Radio Access Technology, RAT, HO using the Single Radio Voice Call Continuity, SRVCC, procedure. By preventing 'partial' handovers, the retainability of an ongoing service is significantly improved. The target cells causing failure of particular RABs can be tracked using new counters.