HK1066648A1 - A communication system using ofdm for one direction and dsss for another direction - Google Patents

A communication system using ofdm for one direction and dsss for another direction

Info

Publication number
HK1066648A1
HK1066648A1 HK04109332A HK04109332A HK1066648A1 HK 1066648 A1 HK1066648 A1 HK 1066648A1 HK 04109332 A HK04109332 A HK 04109332A HK 04109332 A HK04109332 A HK 04109332A HK 1066648 A1 HK1066648 A1 HK 1066648A1
Authority
HK
Hong Kong
Prior art keywords
dsss
ofdm
communication system
another
another direction
Prior art date
Application number
HK04109332A
Other languages
English (en)
Inventor
Xiaodong Li
Hui Liu
Wenzhong Zhang
Original Assignee
Adaptix Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Adaptix Inc filed Critical Adaptix Inc
Publication of HK1066648A1 publication Critical patent/HK1066648A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • H04L27/2651—Modification of fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators for performance improvement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/08—Closed loop power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/10—Open loop power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
HK04109332A 2001-03-09 2004-11-26 A communication system using ofdm for one direction and dsss for another direction HK1066648A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/802,453 US6940827B2 (en) 2001-03-09 2001-03-09 Communication system using OFDM for one direction and DSSS for another direction
PCT/US2002/007111 WO2002073831A1 (en) 2001-03-09 2002-03-08 A communication system using ofdm for one direction and dsss for another direction

Publications (1)

Publication Number Publication Date
HK1066648A1 true HK1066648A1 (en) 2005-03-24

Family

ID=25183749

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04109332A HK1066648A1 (en) 2001-03-09 2004-11-26 A communication system using ofdm for one direction and dsss for another direction

Country Status (6)

Country Link
US (4) US6940827B2 (zh)
JP (4) JP4076861B2 (zh)
KR (3) KR100846644B1 (zh)
CN (2) CN101083651A (zh)
HK (1) HK1066648A1 (zh)
WO (1) WO2002073831A1 (zh)

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US8873516B2 (en) 2014-10-28
US7852812B2 (en) 2010-12-14
WO2002073831A1 (en) 2002-09-19
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US8040855B2 (en) 2011-10-18
US6940827B2 (en) 2005-09-06
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KR20040018340A (ko) 2004-03-03
KR100846644B1 (ko) 2008-07-16
CN101083651A (zh) 2007-12-05
US20070223406A1 (en) 2007-09-27
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JP4990054B2 (ja) 2012-08-01
KR20070086983A (ko) 2007-08-27
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US20110032921A1 (en) 2011-02-10
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