Title:
MULTIPLE ACCESS METHOD AND RADIO EQUIPMENT UTILIZING THE SAME
Document Type and Number:
Japanese Patent JP3717913
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce deterioration due to interference caused by SDMA even in high-speed data transmission.
SOLUTION: N pieces of antennas 22 perform a transmission/reception processing of signals of a radio frequency. A radio unit 12 performs a frequency translation processing between a baseband signal and the radio frequency signal, an amplification processing, an A/D or D/A conversion processing and the like. A signal processing unit 14 performs a signal processing necessary for the transmission/reception processing by adaptive array antennas. A modem unit 16 performs modulation/demodulation processing. A baseband unit 18 serves as interface with a network 24. A control unit 20 controls timings, channel allocation of the radio unit 12, the signal processing unit 14, the model unit 16 and the baseband unit 18.
Inventors:
Masago Nakao
Yoshiharu Doi
Yoshiharu Doi
Application Number:
JP2003377902A
Publication Date:
November 16, 2005
Filing Date:
November 07, 2003
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H04J99/00; H04W16/28; (IPC1-7): H04J15/00; H04Q7/38
Domestic Patent References:
| JP2002198933A | ||||
| JP2001507889A | ||||
| JP2002291038A | ||||
| JP2001054164A |
Attorney, Agent or Firm:
Sakaki Morishita