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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.:

US 6205132 B1

PDFFull Text
Date of Patent:
Mar. 20, 2001

Filed:

Feb. 21, 1997

Method for accessing a cell using two pilot channels in a cdma communication system of an asynchronous or quasi-synchronous mode

Applicant:
Inventors:

Een Kee Hong, Seoul, KR;

Dong Ho Kim, Seoul, KR;

Yeon Dae Yang, Seoul, KR;

Byeong Chul Ahn, Seoul, KR;

Yong Wan Park, Seoul, KR;

Seong Moon Ryu, Seoul, KR;

Tae Young Lee, Seoul, KR;

An Na Choi, Seoul, KR;

Assignee:

Korea Mobile Telecommunications Corp., , KR;

Attorney:

Blakely, Sokoloff, Taylor & Zafman

Primary Examiner:

Chau Nguyen

Assistant Examiner:

Chiho Andrew Lee

Int. Cl.
CPC ...
H04B 7/216 ; H04J 3/06 ;
U.S. Cl.
CPC ...
H04B 7/216 ; H04J 3/06 ;
Abstract

The present invention discloses a method for accessing a cell, and more particularly, to a method for acquiring an initial synchronization using two pilot channels in a CDMA (Code Division Multiple Access) communication system of an asynchronous or quasi-synchronous mode. In accordance with the present invention, a CDMA communication system of an quasi-synchronous mode comprises the steps of synchronizing the mobile station with a cluster pilot, and searching for cell pilots on the basis of the cluster synchronization channel set up by the cluster pilot, and synchronizing the mobile station with the cell pilot having a maximum sensitivity, whereby the mobile station is synchronized with the base station through the cluster pilot and the cell pilot. Also, in accordance with the present invention, a CDMA communication system of a asynchronous mode comprises the steps of synchronizing the mobile station with a cluster pilot, and searching for all cell pilots in a cluster of which synchronization has been set up by the cluster pilot, and synchronizing the mobile station with the cell pilot having a maximum sensitivity, whereby the mobile station is synchronized with the base station through the cluster pilot and the cell pilot.

Find Patent Forward Citations

Hong, Een. (2001). Method for accessing a cell using two pilot channels in a cdma communication system of an asynchronous or quasi-synchronous mode (U.S. Patent No. 6205132). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6205132

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