US 11,924,006 B2
Enhanced method to do channel estimation in a multiple input multiple output based cellular radio technology by leveraging radio power reception level at per antenna element
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. 17, 2021, as Appl. No. 17/528,755.
Prior Publication US 2023/0155863 A1, May 18, 2023
Int. Cl. H04L 25/02 (2006.01); H04B 7/0417 (2017.01); H04B 17/318 (2015.01); H04W 52/24 (2009.01)
CPC H04L 25/0204 (2013.01) [H04B 7/0417 (2013.01); H04B 17/318 (2015.01); H04W 52/245 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for performing channel estimation in a multiple input multiple output (MIMO) based cellular radio technology, the method comprising:
receiving, at a node configured to wirelessly communicate with one or more UEs, a port-specific received power level for each antenna element of a plurality of antenna elements of a UE of the one or more UEs;
comparing, at the node, the port-specific received power level of an antenna element of the plurality of antenna elements to a port-specific transmitted power level of a corresponding node antenna element, wherein the comparing indicates a ratio of the port-specific received power level of an antenna element of the plurality of antenna elements to the port-specific transmitted power level of a corresponding node antenna element is below a threshold; and
based on the comparing, dynamically tuning, at the node, the port-specific transmitted power level of the corresponding node antenna element.