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. 05, 2000
Filed:
Jun. 06, 1997
Applicant:
Inventors:
Takehiro Nakamura, Yokosuka, JP;
Etsuhiro Nakano, Yokosuka, JP;
Assignee:
NTT Mobile Communications Network Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
370328 ; 370342 ;
Abstract
A cell selection scheme for a CDMA mobile communication system which is capable of reducing an amount of interference power and thereby preventing the degradation of the system capacity. In this scheme, each base station transmits a perch channel which is spread by using a spread code assigned to each base station. Then, a mobile station receives more than one perch channels transmitted from more than one base stations, calculates a transmission attenuation value of each received perch channel, and judges a located cell according to calculated transmission attenuation values of these more than one perch channels.