The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 2010
Filed:
Oct. 29, 2002
Yoshihiro Ishikawa, Yokosuka, JP;
Takahiro Hayashi, Yokosuka, JP;
Mikio Iwamura, Zushi, JP;
Takehiro Nakamura, Yokosuka, JP;
Yoshihiro Ishikawa, Yokosuka, JP;
Takahiro Hayashi, Yokosuka, JP;
Mikio Iwamura, Zushi, JP;
Takehiro Nakamura, Yokosuka, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
There is provided a handover control method that does not produce quality deterioration or other similar problems during handover in a mobile communication system in which a first channel shared by a plurality of mobile stations and second channels exclusively used by respective mobile are used in combination. A handover control method according to the present invention comprises: a step in which a data signal is transmitted from one base stationA to a mobile stationby using a first channel; a step in which a control signal is transmitted from a plurality of base stationsA,B including the base stationA to the mobile stationby using a second channel; a step in which the mobile stationreceives a plurality of control signals; a step in which, of the plurality of control signals received, information regarding reception quality of the control signal from the base stationA that transmitted the data signal is transmitted from the mobile stationto the base stationA; and a step in which information relating to reception quality is received by the base stationA and transmission control is performed of the data signal transmitted by the base stationA, in accordance with the received information relating to reception quality.