US 11,924,655 B2
Method to dynamically adjust 4G LTE reference signal power to match 5G NR coverage footprint to avoid voice over 4G fallback failures for 5G subscribers
Muhammad Tawhidur Rahman, Sammamish, WA (US)
Assigned to T-MOBILE INNOVATIONS LLC, Overland Park, KS (US)
Filed by T-MOBILE INNOVATIONS LLC, Overland Park, KS (US)
Filed on Nov. 2, 2021, as Appl. No. 17/516,844.
Prior Publication US 2023/0140564 A1, May 4, 2023
Int. Cl. H04W 24/04 (2009.01); H04L 5/00 (2006.01); H04W 36/08 (2009.01); H04W 52/38 (2009.01); H04W 76/18 (2018.01)
CPC H04W 24/04 (2013.01) [H04L 5/0048 (2013.01); H04W 36/08 (2013.01); H04W 52/38 (2013.01); H04W 76/18 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method for dynamically adjusting a 4G LTE reference signal power level to match a 5G NR coverage footprint to avoid voice over 4G fallback failures for 5G subscribers, the method comprising:
receiving an indication, at a gNodeB, that user equipment (UE) attempting to transition to 4G LTE experienced a voice call setup failure at an eNodeB;
determining the UE was instructed by the gNodeB to go through release with redirect to the eNodeB;
based on the voice call setup failure occurring within a predetermined time period and a predefined threshold being exceeded, communicating, by the gNodeB, to the eNodeB to dynamically adjust a 4G LTE reference signal power level.