(19)
(11) EP 1 912 342 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
25.06.2008 Bulletin 2008/26

(43) Date of publication:
16.04.2008 Bulletin 2008/16

(21) Application number: 08001785.8

(22) Date of filing: 05.03.1999
(51) International Patent Classification (IPC): 
H04B 1/707(2006.01)
H04B 7/005(2006.01)
H04B 7/26(2006.01)
H04Q 7/38(2006.01)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 26.03.1998 JP 8003198

(62) Application number of the earlier application in accordance with Art. 76 EPC:
07011903.7 / 1830477
06008655.0 / 1699141
05015438.4 / 1612960
04013246.6 / 1460774
01128185.4 / 1187358
99907868.6 / 0984581

(71) Applicant: Mitsubishi Denki Kabushiki Kaisha
Chiyoda-ku Tokyo, 100-8310 (JP)

(72) Inventors:
  • Yano, Yasuhiro
    Tokyo 100-8310 (JP)
  • Murai, Hideshi
    Tokyo 100-8310 (JP)

(74) Representative: Pfenning, Meinig & Partner GbR 
Patent- und Rechtsanwälte Theresienhöhe 13
80339 München
80339 München (DE)

 
Remarks:
This application was filed on 31-01-2008 as a divisional application to the application mentioned under INID code 62.
 


(54) Spread spectrum communication method


(57) In a compressed mode, a spread spectrum communication device interleaves bit units across multiple frames using an interleaver, reduces the spreading factor using a framing/spreading unit, outputs the compressed mode frames at a predetermined compressed mode frame timing, and increases the average transmission power in the compressed mode at a radio frequency transmitter. Furthermore, a handover between different frequencies is carried out by establishing synchronization to another frequency carrier, based on a first search code and a second search code which have been detected, and moreover, a handover between different communication systems is carried out by establishing synchronization to a GSM, based on an FCCH and a SCH which have been detected.