US 12,267,118 B2
Apparatus and method for serving cell identification
Prafull Johri, Madhya Pradesh (IN); Vinay Bhokare, Madhya Pradesh (IN); Prabal Bhardwaj, Madhya Pradesh (IN); and Dharambir Bharti, Madhya Pradesh (IN)
Assigned to RAKUTEN SYMPHONY, INC., Tokyo (JP)
Appl. No. 17/637,800
Filed by RAKUTEN SYMPHONY, INC., Tokyo (JP)
PCT Filed Feb. 8, 2022, PCT No. PCT/US2022/015556
§ 371(c)(1), (2) Date Feb. 24, 2022,
PCT Pub. No. WO2023/154033, PCT Pub. Date Aug. 17, 2023.
Prior Publication US 2024/0039649 A1, Feb. 1, 2024
Int. Cl. H04W 24/08 (2009.01); H04B 17/318 (2015.01); H04B 17/345 (2015.01)
CPC H04B 17/328 (2023.05) [H04B 17/345 (2015.01); H04W 24/08 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of serving cell identification, the method comprising:
receiving inputs that include geo-located data collected over a period for a plurality of cells in a Radio Access Network (RAN);
determining each cell of the plurality of cells included in each grid of a plurality of grids of a predetermined size based on the geo-located data;
determining Received Signal Received Power (RSRP) values for each cell of the plurality of cells in the plurality of grids having the predetermined size;
determining a median cell RSRP for each cell of a grid of the plurality of grids;
determining from the geo-located data a number of data samples per cell for each of the plurality of grids having the predetermined size;
determining a cell ranking for each of the plurality of cells in the plurality of grids having the predetermined size based on the number of data samples and the median cell RSRP;
determining a highest-ranking cell in each of the plurality of grids based on the cell ranking;
labeling the highest-ranking cell as a Main Server (MS);
labeling all other cells in a corresponding grid as a Non-Main Server (NS);
responsive to internal interference in the geographic area, determining whether a MS cell RSRP is less than a first threshold;
responsive to the MS cell RSRP being less than the first threshold, labeling a grid of the plurality of grids MS as poor dominance; and
responsive to the MS cell RSRP being greater than the first threshold, determining whether a difference between the MS cell RSRP and a NS RSRP is greater than a second threshold, the second threshold being smaller than the first threshold.