| US 7,353,040 B2 | ||
| Closed-loop power controlled radio communication system | ||
| Matthew P. J. Baker, Canterbury (United Kingdom); and Timothy J. Moulsley, Caterham (United Kingdom) | ||
| Assigned to Koninklijke Philips Electronics N.V., Eindhoven (Netherlands) | ||
| Appl. No. 10/556,006 PCT Filed May 06, 2004, PCT No. PCT/IB2004/001534 § 371(c)(1), (2), (4) Date Nov. 08, 2005, PCT Pub. No. WO2004/102827, PCT Pub. Date Nov. 25, 2004. |
||
| Claims priority of application No. 0310948.5 (GB), filed on May 13, 2003; and application No. 0319454.5 (GB), filed on Aug. 19, 2003. | ||
| Prior Publication US 2006/0223445 A1, Oct. 05, 2006 | ||
| Int. Cl. H04B 7/00 (2006.01) | ||
| U.S. Cl. 455—522 [455/69; 455/115.1; 455/126; 455/127.1; 455/127.2] | 24 Claims |
| 13. A method of operating a communication system comprising a primary station and a secondary station, the method comprising
the steps of:
transmitting at least one signal from the primary station;
receiving, at the secondary station, the at least one transmitted signal, and measuring at least one characteristic of the
received signal, deriving one or more power control commands and/or one or more channel quality reports from at least one
measured characteristic, and transmitting control information including at least one power control command and/or at least
one channel quality report at a predetermined rate;
receiving, at the primary station, the at least one power control command and/or at least one channel quality report, adjusting
the transmit power of a signal in compliance with a received power control command provided that the adjustment is within
the contemporaneous capability of the primary station, and/or determining at least one parameter of a signal in response to
a channel quality report;
modifying, at the secondary station, in response to the primary station failing to adjusting the transmit power in compliance
with a received power control command, at least one parameter of the transmitted control information; and
adapting, at the primary station, in response to receiving modified control information, a characteristic of a transmission;
wherein modifying a parameter of control information transmitted to the primary station includes transmitting at least one
channel quality report at a rate different from the predetermined rate.
|