Title:
RADIO TRANSMITTER/RECEIVER AND METHOD OF RADIO COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2001/022634
Kind Code:
A1
Abstract:
A coder (101) codes transmission data, and a modulator (102) modulates the output signal from the coder (101). A coder (103) codes a pilot signal, and a modulator (104) subjects the output signal from the coder (103) to primary modulation. A spreading circuit (105) multiplies the output signal from the modulator (104) by a specific spreading code to carry out secondary modulation. A multiplexer (106) multiplexes the output signal from the modulator (102) with the spread pilot signal output from the spreading circuit (105). A radio circuit (107) subjects the multiplex signal to predetermined processing and transmits the signal by time division or frequency division multiplexing through a transmission antenna (108). Radio communications at high data rates are thus allowed in a TDMA or FDMA radio communication system.
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Inventors:
AIZAWA JUNICHI (JP)
KATO OSAMU (JP)
UESUGI MITSURU (JP)
AKIYAMA TAKESHI (JP)
KATO OSAMU (JP)
UESUGI MITSURU (JP)
AKIYAMA TAKESHI (JP)
Application Number:
PCT/JP2000/006240
Publication Date:
March 29, 2001
Filing Date:
September 13, 2000
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
AIZAWA JUNICHI (JP)
KATO OSAMU (JP)
UESUGI MITSURU (JP)
AKIYAMA TAKESHI (JP)
AIZAWA JUNICHI (JP)
KATO OSAMU (JP)
UESUGI MITSURU (JP)
AKIYAMA TAKESHI (JP)
International Classes:
H03D7/00; H04B1/04; H04B1/16; H04B1/38; H04B1/69; H04J1/02; H04J3/00; H04J13/00; H04L25/02; H04W28/06; H04W72/04; H04W76/02; (IPC1-7): H04J3/00; H04J1/00; H04J13/00; H04Q7/38
Foreign References:
| JPH09327073A | 1997-12-16 | |||
| JP2000069021A | 2000-03-03 | |||
| JP2000307547A | 2000-11-02 | |||
| JPH10163994A | 1998-06-19 | |||
| JPH10107768A | 1998-04-24 | |||
| JPH09284212A | 1997-10-31 |
Attorney, Agent or Firm:
Washida, Kimihito (Shintoshicenter Bldg. 24-1 Tsurumaki 1-chome Tama-shi, Tokyo, JP)
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