| US 7,542,776 B2 | ||
| Uplink radio resource allocation method, radio base station, and radio network controller | ||
| Anil Umesh, Yokohama (Japan); Masafumi Usuda, Yokosuka (Japan); and Takehiro Nakamura, Yokohama (Japan) | ||
| Assigned to NTT DoCoMo, Inc., Tokyo (Japan) | ||
| Filed on Feb. 09, 2006, as Appl. No. 11/349,951. | ||
| Claims priority of application No. P2005-033716 (JP), filed on Feb. 09, 2005; and application No. P2006-032654 (JP), filed on Feb. 09, 2006. | ||
| Prior Publication US 2006/0189344 A1, Aug. 24, 2006 | ||
| Int. Cl. H04B 7/00 (2006.01) | ||
| U.S. Cl. 455—522 [455/450; 455/509] | 13 Claims |
| 1. An uplink radio resource allocation method for allocating, at a radio base station, an uplink radio resource used for uplink
user data transmission to a mobile station, comprising:
comparing, at the radio base station, total received power in an particular cell of the radio base station with a first target
value assigned by a radio network controller;
comparing, at the radio base station, a ratio of first received power from a serving mobile station to second received power
from a non-serving mobile station with a second target value assigned by the radio network controller, when the total received
power is not larger than the first target value, a serving cell of the serving mobile station being the particular cell, a
non-serving cell of the non-serving mobile station being the particular cell; and
maintaining, at the radio base station, the uplink radio resource allocated to the non-serving mobile station unchanged, when
the ratio is not smaller than the second target value.
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