US Patent No. 9,860,852

SYSTEM AND METHOD TO FACILITATE SMALL CELL UPLINK POWER CONTROL IN A NETWORK ENVIRONMENT


Patent No. 9,860,852
Issue Date January 02, 2018
Title System And Method To Facilitate Small Cell Uplink Power Control In A Network Environment
Inventorship Ritesh K. Madan, Berkeley, CA (US)
Rohit Umesh Nabar, Sunnyvale, CA (US)
Vikram Chandrasekhar, Mountain View, CA (US)
Kedar Durgadas Shirali, Sunnyvale, CA (US)
Qing Zhao, Fremont, CA (US)
Assignee Cisco Technology, Inc., San Jose, CA (US)

Claim of US Patent No. 9,860,852

1. A method comprising:
determining user equipment (UE) path loss information associated with one or more UE served by one or more small cell radios;
determining macro path loss information associated with each of the one or more small cell radios and a macro cell radio;
determining, at a central management entity, one or more sets of optimized power control parameters for uplink UE transmissions
for the one or more UE served by the one or more small cell radios based on the determined UE path loss information and the
determined macro path loss information, wherein the one or more sets of optimized power control parameters satisfy a first
interference constraint associated with limiting interference between the one or more small cell radios and satisfy a second
interference constraint associated with limiting interference toward the macro cell radio;

generating one or more messages for each of the one or more small cell radios identifying the one or more sets of optimized
power control parameters; and

setting, by each small cell radio of the one or more small cell radios, uplink transmit power for each UE served by each small
cell radio based, at least in part, on the identified one or more sets of optimized power control parameters.