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:
Dec. 04, 2007
Filed:
Dec. 06, 1999
Yoshihiro Ishikawa, Kanagawa, JP;
Yoshihiro Ishikawa, Kanagawa, JP;
NTT Mobile Communications Network, Inc., Tokyo, JP;
Abstract
A traffic control method, a mobile station device and a base station device for mobile data communications that can realize improvement of communication quality and effective utilization of radio frequencies used in a mobile communication system using spread signals such as CDMA are disclosed. In a mobile communication system of a scheme using spread signals including CDMA, where two types of communication channels including a common channel and a plurality of individual channels are provided such that the common channel is set to be used by a plurality of users together and each individual channel is set to be used exclusively by one user, a communication using the common channel and the individual channel is carried out between a mobile radio terminal and a radio base station, and an admission judgement for a shift from the common channel to the individual channel is carried out at the radio base station or the mobile radio terminal, when a communication traffic at the mobile radio terminal is shifting from a sparse state to a dense state during the communication.