Title:
CDMA CELLULAR RADIO TRANSMITTER
Document Type and Number:
Japanese Patent JP2934185
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce interference between other stations provided by a pilot channel onto a communication channel at a base station and to attain synchronization detection in a mobile station in the case of transmission of a communication channel through transmission antenna directivity control.
SOLUTION: A base station sends a pilot channel 101 and also a signal interpolated with a pilot symbol 108 and multiplexed on a communication channel 106. Since it is not required to send the pilot channel 101 with a high respectively power to obtain high reliability as synchronization detection reference signal, a weight 105 is used and the pilot channel 101 is sent at a lower power than that of the communication channel and then interference between other stations is reduced. Furthermore, a mobile station uses a pilot symbol inserted in the communication channel to attain accurate synchronization detection.
Inventors:
MYA KAZUYUKI
WATANABE MASATOSHI
KATO OSAMU
WATANABE MASATOSHI
KATO OSAMU
Application Number:
JP5971196A
Publication Date:
August 16, 1999
Filing Date:
March 15, 1996
Export Citation:
Assignee:
MATSUSHITA DENKI SANGYO KK
International Classes:
H04B1/707; H04B1/7073; H04B7/005; H04B7/26; H04J13/00; H04W72/04; H04B1/7097; (IPC1-7): H04B1/707; H04B7/26; H04J13/04
Domestic Patent References:
| JP6350503A | ||||
| JP5304544A | ||||
| JP7170223A |
Other References:
【文献】国際公開96/471(WO,A1)
Attorney, Agent or Firm:
Masahiro Kurai