Title:
CDMA TRANSMITTING APPARATUS AND CDMA RECEIVING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2004/045122
Kind Code:
A1
Abstract:
An S/P converting part (101) converts input signals (A1,A2,B1,B2,...K1,K2) to be transmitted into parallel data that have been separated for transmitting systems. Spreading parts (102,103) spread, under the control of a spreading control part (107), the respective data. Adding parts (104-1,104-2) multiplex the spread data. Transmitting parts (105-1,105-2) subject the multiplexed signals to radio transmission processings, and radio-transmit these data via antennas (106-1,106-2). The spreading control part (107) controls, based on a line quality, the spreading manners in the spreading parts (102,103). In this way, when different data are transmitted from the respective antennas, the frequency utilization efficiency can be maintained, while the received-data error rate characteristic can be improved.
Inventors:
SUDO HIROAKI (JP)
Application Number:
PCT/JP2003/014493
Publication Date:
May 27, 2004
Filing Date:
November 14, 2003
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
SUDO HIROAKI (JP)
SUDO HIROAKI (JP)
International Classes:
H04B7/04; H04J99/00; H04B7/06; H04B7/08; H04J11/00; H04J13/00; H04J13/16; H04L1/00; H04L1/18; (IPC1-7): H04J13/04
Foreign References:
| JP2001268050A | 2001-09-28 |
Other References:
See also references of EP 1551124A4
Attorney, Agent or Firm:
Washida, Kimihito (Shintoshicenter Bldg. 24-1, Tsurumaki 1-chom, Tama-shi Tokyo, JP)
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