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:
Feb. 15, 2005
Filed:
Mar. 03, 2000
Applicants:
Hiroshi Furukawa, Tokyo, JP;
Kojiro Hamabe, Tokyo, JP;
Akihisa Ushirokawa, Tokyo, JP;
Inventors:
Assignee:
NEC Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q007/00 ;
U.S. Cl.
CPC ...
Abstract
To prevent degradation of transmission quality due to interference between scramble codes, under such a situation as soft hand over, when the number of mobile stations connected with a base station exceeds the number of the orthogonal codes. The base station decides the priority of the scramble code. The scramble code is allocated to the mobile station, in accordance with the priority. When a mobile station ends its call, or stops temporarily its call, its PN code is re-allocated to the mobile station with lowest priority code.