US 11,864,258 B1
Recovering bearers after service interruption of relay nodes
Amrit Kumar Chandra, Ashburn, VA (US); Charles Manganiello, Paola, KS (US); David Zhijun Sun, Broadlands, VA (US); Jay R. Chernoff, Pawleys Island, SC (US); Kristian Kai Johns, Ashburn, VA (US); Liang Li, Darnestown, MD (US); Mayur Shirwadkar, Arlington, VA (US); Neehar Kulkarni, Herndon, VA (US); Ramesh Kalathur, Fairfax, VA (US); and Saravana Velusamy, Overland Park, KS (US)
Assigned to Sprint Spectrum LP, Overland Park, KS (US)
Filed by Sprint Spectrum LP, Overland Park, KS (US)
Filed on May 26, 2020, as Appl. No. 16/883,231.
Int. Cl. H04W 76/25 (2018.01); H04W 76/19 (2018.01); H04W 88/16 (2009.01); H04W 28/02 (2009.01); H04W 8/08 (2009.01)
CPC H04W 76/25 (2018.02) [H04W 8/08 (2013.01); H04W 28/0268 (2013.01); H04W 76/19 (2018.02); H04W 88/16 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for recovering bearers after a service interruption of a relay node, the method comprising:
receiving, at a relay gateway, an instruction to modify bearers from a mobility management entity (MME), the instruction identifying one or more bearers that were in use by the relay node prior to the service interruption, wherein the one or more bearers in the instruction from the MME comprise non-guaranteed-bit-rate (non-GBR) bearers;
identifying, at the relay gateway, at least one additional bearer in use prior to the service interruption not identified in the instruction received from the MME by referring to a database comprising a list of bearers associated with the relay node; and
instructing the MME to create the at least one additional bearer, wherein the at least one additional bearer is GBR bearer that comprises a voice over long-term-evolution (VOLTE) bearer.