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Title:
FLEXIBLE TIME-FREQUENCY MULTIPLEXING STRUCTURE FOR WIRELESS COMMUNICATION
Document Type and Number:
Japanese Patent JP2012165400
Kind Code:
A
Abstract:

To efficiently send data in a wireless communication system.

An output waveform comprises traffic and overhead segments, and code division multiplexing (CDM) or orthogonal frequency division multiplexing (OFDM) is selected for each traffic segment. Each traffic segment carries CDM data at a chip rate if CDM is selected, and carries OFDM data if OFDM is selected. OFDM symbols are generated at a sample rate that is an integer ratio of the chip rate, and have the duration determined based on the traffic segment duration. The output waveform carries CDM data and/or OFDM data on subcarriers corresponding to at least one carrier in a spectral allocation and further carries OFDM data on remaining usable subcarriers in the spectral allocation.


Inventors:
BHUSHAN NAGA
ALEXEI GOROKHOV
Application Number:
JP2012000055731
Publication Date:
August 30, 2012
Filing Date:
March 13, 2012
Export Citation:
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Assignee:
QUALCOMM INC
International Classes:
H04J4/00; H04J11/00; H04J13/00; H04W72/04
Domestic Patent References:
JPH10303848A1998-11-13
JP2000504908A2000-04-18
JP2003152679A2003-05-23
Foreign References:
WO2005015775A12005-02-17
Attorney, Agent or Firm:
蔵田 昌俊
高倉 成男
河野 哲
中村 誠
福原 淑弘
峰 隆司
白根 俊郎
村松 貞男
野河 信久
幸長 保次郎
河野 直樹
砂川 克
井関 守三
佐藤 立志
岡田 貴志
堀内 美保子
竹内 将訓