WO2003003611A3 - Cellular communication system which uses multicarrier spread-spectrum transmission - Google Patents

Cellular communication system which uses multicarrier spread-spectrum transmission Download PDF

Info

Publication number
WO2003003611A3
WO2003003611A3 PCT/IL2002/000520 IL0200520W WO03003611A3 WO 2003003611 A3 WO2003003611 A3 WO 2003003611A3 IL 0200520 W IL0200520 W IL 0200520W WO 03003611 A3 WO03003611 A3 WO 03003611A3
Authority
WO
WIPO (PCT)
Prior art keywords
cell
sub
carriers
phase
transmitted
Prior art date
Application number
PCT/IL2002/000520
Other languages
French (fr)
Other versions
WO2003003611A2 (en
Inventor
Michael Bank
Original Assignee
Strathmore Ltd
Michael Bank
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 Strathmore Ltd, Michael Bank filed Critical Strathmore Ltd
Priority to AU2002345325A priority Critical patent/AU2002345325A1/en
Publication of WO2003003611A2 publication Critical patent/WO2003003611A2/en
Publication of WO2003003611A3 publication Critical patent/WO2003003611A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0491—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity
    • 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
    • H04L5/026—Multiplexing of multicarrier modulation signals using code division

Abstract

A frequency band, to be used by each cell within a group of cells, is obtained and the number, m=2n (n=1, 2...), of orthogonal sub-carriers, f1, f2, .., fm, over which individual data are transmitted in each communication channel, is determined for all cells within the group. A phase, φi, is allocated to each sub-carrier fi(I=1,2,..,m) within a cell, such that the absolute value φi is determined by the data that is transmitted, and by the digital modulation scheme, and is identical for all fi within the cell, and the sign of each φi within the cell is identical to the sign of a corresponding element taken from a row in an mxm Walsh-Hadamard matrix that corresponds to that cell, such that neighbouring/overlapping cells use different rows. The data in each cell are transmitted over the sub-carriers with their corresponding phases. All transmissions carried by all sub-carriers are received and the total phase Φi of all the received signals at frequency fi is obtained. The sign of total phase Φi is changed for each cell, for all values of i that correspond to negative elements in the corresponding row of that cell's matrix. The phase, φi, of any transmitted sub-carrier, fi, is obtained by summing the values of the total phase, Φi, after changing phase signs, and dividing the result of the summation by a number determined according to m and/or the ratio between the magnitudes of the sub-carriers within a cell, and the magnitudes of the sub-carriers within its neighbouring/overlapping cells.
PCT/IL2002/000520 2001-06-28 2002-06-27 Cellular communication system which uses multicarrier spread-spectrum transmission WO2003003611A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002345325A AU2002345325A1 (en) 2001-06-28 2002-06-27 Cellular communication system which uses multicarrier spread-spectrum transmission

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL144068 2001-06-28
IL14406801A IL144068A0 (en) 2001-06-28 2001-06-28 A method for improving the utilization of radio communication bands, and a communication system using the method

Publications (2)

Publication Number Publication Date
WO2003003611A2 WO2003003611A2 (en) 2003-01-09
WO2003003611A3 true WO2003003611A3 (en) 2004-03-11

Family

ID=11075566

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2002/000520 WO2003003611A2 (en) 2001-06-28 2002-06-27 Cellular communication system which uses multicarrier spread-spectrum transmission

Country Status (3)

Country Link
AU (1) AU2002345325A1 (en)
IL (1) IL144068A0 (en)
WO (1) WO2003003611A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006314081A (en) * 2005-04-08 2006-11-16 Matsushita Electric Ind Co Ltd Communications apparatus and communication method thereof
US7986740B2 (en) * 2005-08-18 2011-07-26 Michael Bank Wireless mobile communication system without pilot signals

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282222A (en) * 1992-03-31 1994-01-25 Michel Fattouche Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
US5970053A (en) * 1996-12-24 1999-10-19 Rdl, Inc. Method and apparatus for controlling peak factor of coherent frequency-division-multiplexed systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282222A (en) * 1992-03-31 1994-01-25 Michel Fattouche Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
US5970053A (en) * 1996-12-24 1999-10-19 Rdl, Inc. Method and apparatus for controlling peak factor of coherent frequency-division-multiplexed systems

Also Published As

Publication number Publication date
WO2003003611A2 (en) 2003-01-09
AU2002345325A1 (en) 2003-03-03
IL144068A0 (en) 2002-04-21

Similar Documents

Publication Publication Date Title
CN1082754C (en) Communication resource allocation method and apparatus
CN101803255B (en) Radio communication method, radio communication system, and radio transmission device
CN101356755B (en) Method and apparatus for pilot signal transmission
Dasilva et al. Multicarrier orthogonal CDMA signals for quasi-synchronous communication systems
CN103004242B (en) Orthonormal time-frequency shifting and spectral shaping communications method
KR100365346B1 (en) Apparatus and method for generating quasi-orthogonal code of mobile communication system and diffusing band by using quasi-orthogonal code
RU2419978C2 (en) Receiving device, method to receive signal, transmitting device and method to transfer signal along communication line with basic station
EP2175610B1 (en) A method for mapping a physical downlink control format indicator channel to a physical resource
RU2011141770A (en) METHOD AND SYSTEM FOR DISTRIBUTING PILOT SIGNALS IN MULTI-THREAD TRANSMISSIONS
WO2005101987A3 (en) Method of allocating subcarriers in orthogonal frequency division multiplexing (ofdm) cellular system
CN101986759A (en) Mobile station, sending method and mobile wireless communication system
HUE028911T2 (en) Method and devices for allocating reference signals in mimo system
ATE230533T1 (en) MULTI CARRIER MODULATION BASED SPREAD SPECTRUM MULTIPLE ACCESS
EP1525704A1 (en) Time-frequency interleaved mc-cdma for quasi-synchronous systems
EP1401122A3 (en) Orthogonal frequency division multiplexing receiver
CN1318953A (en) Pilot utilization in orthogonal frequency-division multiplex base spread spectrum multiple access system
CA2556672A1 (en) Method for allocating a subchannel in an orthogonal frequency division multiple access cellular communication system
CN102088309B (en) Method and device for generating reference signal used for estimating channel quality
EP1628452A3 (en) Modulation method and radio communication system
CN1301089A (en) Comunication system with orthogonal frequency division multiplexing based spread spectrum multiple addresses
CA2534988A1 (en) Methods for generating and transmitting frequency hopped signals
Chotikakamthorn et al. On identifiability of OFDM blind channel estimation
CN1738228A (en) Intergroup orthogonal complementary code production method and application system
CN101326784A (en) Windowed orthogonal frequency division multiplexing for spectrum agile radios
CN101174857A (en) Sequence distribution method, sequence processing method and device in communication system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP