INFORMATION RATE CONTROL METHOD, MOBILE STATION, RADIO CONTROL APPARATUS, BASE STATION, AND MOBILE COMMUNICATION SYSTEM

Title:

INFORMATION RATE CONTROL METHOD, MOBILE STATION, RADIO CONTROL APPARATUS, BASE STATION, AND MOBILE COMMUNICATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2003/041302

Kind Code:

A1

Abstract:

With a simple control not accompanied by any drastic modification of the apparatus size, it is possible to suppress capacity reduction of a mobile station in the entire mobile communication system. There is provided an information rate control method in a mobile communication system including a base station and a mobile station located in a radio zone formed by the base station so that radio communication is performed between the base station and the mobile station. The method includes a step (S51) for measuring a reception quality of a signal from the base station by the mobile stations upon start of radio communication, a step (S52) for calculating the reference quality as a reference for deciding the information rate according to the reception quality, i.e., as the reception quality is lowered, the reference quality is set lower, a step (S53) for deciding the information rate according to the reference quality, and a step (S54) for notifying the decided information rate to the base station.

Inventors:

MORIHIRO YOSHIFUMI (JP)
HAYASHI TAKAHIRO (JP)
ISHIKAWA YOSHIHIRO (JP)

Application Number:

PCT/JP2002/011696

Publication Date:

May 15, 2003

Filing Date:

November 08, 2002

Export Citation:

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Assignee:

NTT DOCOMO INC (JP)
MORIHIRO YOSHIFUMI (JP)
HAYASHI TAKAHIRO (JP)
ISHIKAWA YOSHIHIRO (JP)

International Classes:

H04W28/22; (IPC1-7): H04B7/26

Domestic Patent References:

WO1999060742A1

1999-11-25

Foreign References:

JP2000514624A	2000-10-31
JPH0923212A	1997-01-21
JPH09275391A	1997-10-21
JPH09149009A	1997-06-06

Other References: