Title:
基地局の同期ステータスに関する情報を送信する方法および装置
Document Type and Number:
Japanese Patent JP4282901
Kind Code:
B2
Abstract:
Base stations (101, 102) utilize a spreading code that is dependent upon whether the particular base station (101) is operating in a synchronized, or an unsynchronized mode. Unsynchronized base stations (102) within the communication system (100) utilize a long code unique to the particular base station (102), and base stations (101) operating in a synchronized mode utilize a time shifted version of the same long code. To reduce the search time for remote units (113) within the communication system (100), a group identification code (GIC) (305) is broadcast during a time period that the long code is masked. The GIC (305) indicates a (spreading code) long code group to which the long code of each base station belongs. Additionally, each base station (101, 102) within the communication system (100) determines its synchronization status and utilizes a particular GIC (305) and long code based on the base station's synchronization status.
Inventors:
Amitabha Gosh
Gerald Paul Lovetts
Kenneth a hearth
Gerald Paul Lovetts
Kenneth a hearth
Application Number:
JP2000540630A
Publication Date:
June 24, 2009
Filing Date:
December 18, 1998
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H04W56/00; H04B7/26; H04W48/18; H04W72/04; H04W88/10; H04W88/14; H04J11/00
Domestic Patent References:
| JP2001522212A | ||||
| JP10126378A |
Attorney, Agent or Firm:
Mamoru Kuwagaki
Naoki Fujimura
Naoki Fujimura