US Patent No. 10,397,929

INDIVIDUALIZED GAIN CONTROL OF REMOTE UPLINK BAND PATHS IN A REMOTE UNIT IN A DISTRIBUTED ANTENNA SYSTEM (DAS), BASED ON COMBINED UPLINK POWER LEVEL IN THE REMOTE UNIT


Patent No. 10,397,929
Issue Date August 27, 2019
Title Individualized Gain Control Of Remote Uplink Band Paths In A Remote Unit In A Distributed Antenna System (das), Based On Combined Uplink Power Level In The Remote Unit
Inventorship Dror Harel, Hod Hasharon (IL)
Assignee Corning Optical Communications LLC, Hickory, NC (US)

Claim of US Patent No. 10,397,929

1. A wireless communication system, comprising:a central unit configured to:
receive a plurality of uplink communications signals from a plurality of remote units; and
distribute the received plurality of uplink communications signals to a network;
the plurality of remote units each configured to:
receive a plurality of uplink band communications signals from at least one client device;
combine the received plurality of uplink band communications signals into a combined uplink communications signal; and
distribute the received combined uplink communications signal to the central unit;
each of the plurality of remote units comprising:
a plurality of remote uplink band power measurement circuits each coupled to a remote uplink band path among a plurality of remote uplink band paths each carrying at least one uplink band communications signal in a remote unit, each remote uplink band power measurement circuit among the plurality of remote uplink band power measurement circuits configured to:
measure a remote uplink band power of an uplink band communications signal in the remote uplink band path in the remote unit; and
provide a remote uplink band power measurement indicative of the measured remote uplink band power of the uplink band communications signal in the remote uplink band path; and
a remote combined uplink power measurement circuit coupled to a remote combined uplink path in the remote unit carrying a combined uplink communications signal comprised of a combined plurality of the uplink band communications signals, the remote combined uplink power measurement circuit configured to:
measure a remote combined uplink power of the combined uplink communications signal in the remote combined uplink path; and
provide a remote combined uplink power measurement indicative of the measured remote combined uplink power of the combined uplink communications signal in the remote combined uplink path; and
at least one remote controller configured to, for each of the plurality of remote units:
(a) receive the remote combined uplink power measurement for the remote unit;
(b) receive an individual remote uplink band power measurement for each remote uplink band path of the plurality of remote uplink band paths in the remote unit; and
(c) determine if the remote combined uplink power measurement is greater than a remote combined uplink threshold power level for the remote unit;
(d) if the remote combined uplink power measurement is greater than the remote combined uplink threshold power level for the remote unit, in response:
identify high power remote uplink band paths among the plurality of remote uplink band paths; and
direct a remote combined uplink band gain control circuit for at least one remote uplink band path identified as a high power remote uplink band path, to reduce an uplink band gain of the respective remote uplink band path by a defined remote uplink band gain level.