| US 7,599,319 B2 | ||
| Radio communications system and control method therefor | ||
| Daisuke Kondou, Tokyo (Japan); Motoya Iwasaki, Tokyo (Japan); Hisashi Kawabata, Tokyo (Japan); Osami Nishimura, Tokyo (Japan); Yukio Haseba, Tokyo (Japan); and Emiko Sakuma, Tokyo (Japan) | ||
| Assigned to NEC Corporation, Tokyo (Japan) | ||
| Filed on Nov. 03, 2005, as Appl. No. 11/265,308. | ||
| Claims priority of application No. 2004-320339 (JP), filed on Nov. 04, 2004. | ||
| Prior Publication US 2006/0092870 A1, May 04, 2006 | ||
| Int. Cl. H04B 7/185 (2006.01); H04B 15/00 (2006.01) | ||
| U.S. Cl. 370—318 [455/522; 455/127.1] | 37 Claims |
| 1. A radio base station installed in a radio communications system which includes a radio network controller and a radio communications
device, said radio base station comprising:
transmission/reception means for communicating with said radio network controller;
radio transceiver means for communicating with said radio communications device to receive a first communication channel and
a second communication channel from said radio communications device; and
control means for detecting a reception quality of the first communication channel, conducting an inner-loop power control
for controlling transmission power of the first communication channel from said radio communications device based on the reception
quality and an inner-loop power control target value, and adding a power control offset to the inner-loop power control target
value before said radio transceiver means starts a communication through the second communication channel,
wherein said control means conducts an outer-loop power control for adjusting the inner-loop power control target value between
said radio base station and said radio network controller through said radio transceiver means, interrupts the outer-loop
power control after the power control offset is added to the inner-loop power control target value, and resumes the outer-loop
power control from start of a communication through the second communication channel onward after the outer-loop power control
was interrupted.
|