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:
Sep. 17, 2003
Sung Uk Moon, Yokosuka, JP;
Takehiro Nakamura, Yokosuka, JP;
Minami Ishii, Yokohama, JP;
Shinji Ueda, Yokosuka, JP;
Sung Uk Moon, Yokosuka, JP;
Takehiro Nakamura, Yokosuka, JP;
Minami Ishii, Yokohama, JP;
Shinji Ueda, Yokosuka, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A radio communication system includes a radio network controller, base stations and mobile stations. The mobile station includes a response signal transmitter which is configured to transmit a response signal including a group ID identifying a multicast group A to a base station. The response signal responds to a control signal for the multicast group A which the mobile station is joining in. The base station includes a response signal transmitter configured to transmit at least one response signal to the radio network controller. The response signal is selected from at least one response signal transmitted from the mobile station joining in the same multicast group A.