US 9,813,178 B2
Systems and methods for small cell uplink interference cancellation using cooperation between small cells
Soumya Das, San Diego, CA (US); Bongyong Song, San Diego, CA (US); Samir Salib Soliman, Poway, CA (US); and Kaushik Chakraborty, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Nov. 26, 2012, as Appl. No. 13/685,469.
Prior Publication US 2014/0148179 A1, May 29, 2014
Int. Cl. H04W 72/00 (2009.01); H04J 11/00 (2006.01); H04B 1/7107 (2011.01)
CPC H04J 11/004 (2013.01) [H04B 1/7107 (2013.01); H04B 2201/698 (2013.01); H04B 2201/70702 (2013.01)] 38 Claims
OG exemplary drawing
 
1. A method of managing uplink interference at a base station, the method comprising:
transmitting, from the base station, a request for assistance information relating to interfering uplink transmissions from one or more inter-cell user equipments to a neighboring base station;
receiving, at the base station, a wireless transmission comprising the assistance information from the neighboring base station in response to the request, the assistance information comprising a parameter list of ongoing transmissions by the one or more inter-cell user equipments associated with the neighboring base station, the ongoing transmissions of the one or more inter-cell user equipments causing uplink interference to an uplink channel of the base station; and
performing uplink interference cancellation, at the base station, on at least a portion of a received signal based on the assistance information to generate a resulting signal in response to receiving the assistance information.