WO2007087602A3 - Method and apparatus for increasing the number of orthogonal signals using block spreading - Google Patents

Method and apparatus for increasing the number of orthogonal signals using block spreading Download PDF

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Publication number
WO2007087602A3
WO2007087602A3 PCT/US2007/061054 US2007061054W WO2007087602A3 WO 2007087602 A3 WO2007087602 A3 WO 2007087602A3 US 2007061054 W US2007061054 W US 2007061054W WO 2007087602 A3 WO2007087602 A3 WO 2007087602A3
Authority
WO
WIPO (PCT)
Prior art keywords
signals
block spreading
increasing
orthogonal signals
sequence
Prior art date
Application number
PCT/US2007/061054
Other languages
French (fr)
Other versions
WO2007087602A2 (en
Inventor
Tarik Muharemovic
Aris Papasakellariou
Eko Onggosanusi
Original Assignee
Texas Instruments Inc
Tarik Muharemovic
Aris Papasakellariou
Eko Onggosanusi
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 Texas Instruments Inc, Tarik Muharemovic, Aris Papasakellariou, Eko Onggosanusi filed Critical Texas Instruments Inc
Priority to EP07717412.6A priority Critical patent/EP1985023A4/en
Publication of WO2007087602A2 publication Critical patent/WO2007087602A2/en
Publication of WO2007087602A3 publication Critical patent/WO2007087602A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/22—Allocation of codes with a zero correlation zone
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
    • H04J13/0062—Zadoff-Chu
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Abstract

Embodiments of the invention apply block spreading to transmitted signals to increase the number of orthogonally multiplexed signals. The principle of the disclosed invention can be applied to reference signals, acknowledgement signals, and channel quality indication signals. In any given time interval (405), the set of transmitted signals is defined by two sequences: the baseline sequence, and the block spreading sequence (403). Different transmitters using the same baseline sequence can be identified by using different block spreading sequences.
PCT/US2007/061054 2006-01-25 2007-01-25 Method and apparatus for increasing the number of orthogonal signals using block spreading WO2007087602A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07717412.6A EP1985023A4 (en) 2006-01-25 2007-01-25 Method and apparatus for increasing the number of orthogonal signals using block spreading

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76207106P 2006-01-25 2006-01-25
US60/762,071 2006-01-25

Publications (2)

Publication Number Publication Date
WO2007087602A2 WO2007087602A2 (en) 2007-08-02
WO2007087602A3 true WO2007087602A3 (en) 2008-07-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/061054 WO2007087602A2 (en) 2006-01-25 2007-01-25 Method and apparatus for increasing the number of orthogonal signals using block spreading

Country Status (3)

Country Link
US (2) US8005153B2 (en)
EP (1) EP1985023A4 (en)
WO (1) WO2007087602A2 (en)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8130857B2 (en) * 2006-01-20 2012-03-06 Qualcomm Incorporated Method and apparatus for pilot multiplexing in a wireless communication system
US8374161B2 (en) * 2006-07-07 2013-02-12 Qualcomm Incorporated Method and apparatus for sending data and control information in a wireless communication system
US9143288B2 (en) 2006-07-24 2015-09-22 Qualcomm Incorporated Variable control channel for a wireless communication system
JP5077525B2 (en) * 2006-08-22 2012-11-21 日本電気株式会社 Reference signal multiplexing method and radio communication apparatus in radio communication system
US8094638B2 (en) 2006-08-22 2012-01-10 Texas Instruments Incorporated Adaptive selection of transmission parameters for reference signals
US20080056117A1 (en) * 2006-09-01 2008-03-06 Tarik Muharemovic Specification of sub-channels for fdm based transmission including ofdma and sc-ofdma
BRPI0717814A8 (en) * 2006-09-26 2019-10-15 Nokia Corp computer program apparatus, method and product providing sequence modulation for uplink control signaling
ES2793313T3 (en) * 2006-09-26 2020-11-13 Nokia Technologies Oy Computer program apparatus, method, and product that provides multiplexing for unassociated data control channel
TWI451728B (en) * 2006-09-29 2014-09-01 Koninkl Philips Electronics Nv Cost-effective preamble structure for high-speed communication of packetized systems
EP2071856B1 (en) 2006-10-02 2015-07-08 Panasonic Intellectual Property Corporation of America Sequence allocation method in mobile communication system
GB0619530D0 (en) * 2006-10-03 2006-11-15 Nokia Corp Signalling
JP4629056B2 (en) 2006-10-03 2011-02-09 株式会社エヌ・ティ・ティ・ドコモ User apparatus, transmission method, and communication system
US8295266B2 (en) * 2006-10-25 2012-10-23 Lg Electronics Inc. Method for adjusting RACH transmission against frequency offset
FI20065689A0 (en) * 2006-10-31 2006-10-31 Nokia Corp Data sequence structure and transfer procedure
KR101077325B1 (en) * 2006-11-01 2011-10-26 콸콤 인코포레이티드 Method and apparatus for hybrid fdm-cdm structure for single carrier based control channels
US7957759B2 (en) * 2006-12-08 2011-06-07 Texas Instruments Incorporated Wideband reference signal transmission in SC-FDMA communication systems
US7792212B2 (en) 2007-01-05 2010-09-07 Lg Electronics, Inc. Method for setting cyclic shift considering frequency offset
CN101641925B (en) 2007-01-05 2013-08-21 Lg电子株式会社 Method for setting cyclic shift considering frequency offset
US9065714B2 (en) * 2007-01-10 2015-06-23 Qualcomm Incorporated Transmission of information using cyclically shifted sequences
WO2008093716A1 (en) * 2007-01-31 2008-08-07 Panasonic Corporation Radio transmission device and radio transmission method
JP4935993B2 (en) * 2007-02-05 2012-05-23 日本電気株式会社 Method and apparatus for generating reference signal in wireless communication system
WO2008100009A1 (en) 2007-02-12 2008-08-21 Lg Electronics Inc. Methods and procedures for high speed ue access
JP4601637B2 (en) * 2007-03-20 2010-12-22 株式会社エヌ・ティ・ティ・ドコモ Mobile station, transmission method, and wireless communication system
US8165228B2 (en) * 2007-03-20 2012-04-24 Alcatel Lucent Non-coherent transmission method for uplink control signals using a constant amplitude zero-autocorrelation sequence
HUE057001T2 (en) 2007-03-23 2022-04-28 Optis Wireless Technology Llc Base station apparatus for transmitting downlink ack/nack signals and corresponding mobile station apparatus
US8750917B2 (en) 2007-05-18 2014-06-10 Qualcomm Incorporated Multiplexing and power control of uplink control channels in a wireless communication system
US8059735B2 (en) * 2007-06-04 2011-11-15 Texas Instruments Incorporated Allocation of block spreading sequences
JP4505043B2 (en) * 2007-06-15 2010-07-14 パナソニック株式会社 Wireless communication apparatus and response signal spreading method
US8204010B2 (en) * 2007-06-18 2012-06-19 Research In Motion Limited Method and system for dynamic ACK/NACK repetition for robust downlink MAC PDU transmission in LTE
WO2009017363A2 (en) * 2007-07-30 2009-02-05 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving different signal types in communication systems
US8467367B2 (en) 2007-08-06 2013-06-18 Qualcomm Incorporated Multiplexing and transmission of traffic data and control information in a wireless communication system
KR100964697B1 (en) 2007-08-08 2010-06-21 엘지전자 주식회사 Methods for multiplexing uplink signal with scheduling request signal in mobile communication system
ES2400827T3 (en) 2007-08-13 2013-04-12 Panasonic Corporation Radio transmission device and radio transmission method
US8077693B2 (en) 2007-09-19 2011-12-13 Samsung Electronics Co., Ltd. Resource remapping and regrouping in a wireless communication system
SI2197132T1 (en) * 2007-10-01 2018-10-30 Panasonic Corporation Radio communication device and response signal spreading method
US8295229B2 (en) * 2007-10-10 2012-10-23 Lg Electronics Inc. High speed access system and method in a mobile communications network
EP3432504B1 (en) * 2007-10-30 2021-06-23 Nokia Technologies Oy Methods, apparatuses, system and related computer program product for resource allocation
JP5213414B2 (en) * 2007-10-30 2013-06-19 株式会社エヌ・ティ・ティ・ドコモ Mobile communication system, base station apparatus, user apparatus and method
US7965797B2 (en) 2007-11-01 2011-06-21 Texas Instruments Incorporated Method, system and apparatus for generating constant amplitude zero autocorrelation sequences
KR101417084B1 (en) 2008-07-02 2014-08-07 엘지전자 주식회사 Method of transmitting reference signals for uplink transmission
ES2427617T3 (en) 2008-08-19 2013-10-31 Electronics And Telecommunications Research Institute Method and apparatus for transmitting acknowledgment and negative acknowledgment
KR101306735B1 (en) 2008-10-15 2013-09-11 엘지전자 주식회사 A method of transmitting sounding reference signal sequence using multi-antenna
KR101639810B1 (en) * 2009-01-13 2016-07-25 엘지전자 주식회사 Method of transmitting sounding reference signal in multiple antenna system
US8737502B2 (en) * 2009-02-09 2014-05-27 Qualcomm Incorporated Multiplexing and coding schemes for multiple transmit antennas in a wireless communication system
KR101253204B1 (en) * 2009-03-22 2013-04-10 엘지전자 주식회사 Channel-sounding method using a plurality of antennas, and apparatus for same
KR20110086249A (en) * 2010-01-22 2011-07-28 삼성전자주식회사 Sounding sequence allocation method in wireless communication system and control system therefor
KR102024601B1 (en) * 2014-08-19 2019-11-04 엘지전자 주식회사 Method for generating and transmitting pilot sequence using non-cazac sequence in wireless communication system
US10560685B2 (en) 2018-06-12 2020-02-11 Aura Intelligent Systems, Inc. Method and apparatus for an advanced radio system
US11936477B2 (en) 2019-01-14 2024-03-19 Aura Intelligent Systems, Inc. Sub-band and multi-band coded OFDM for high-resolution radar

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001013531A1 (en) * 1999-08-17 2001-02-22 British Telecommunications Public Limited Company Signal generator and decoder
US20020118635A1 (en) * 2000-11-13 2002-08-29 Nee Didier Johannes R. Van Communication system
US6744807B1 (en) * 2000-05-31 2004-06-01 University Of Pretoria Multi-dimensional spread spectrum modem
US20040252667A1 (en) * 1997-07-22 2004-12-16 Dent Paul W. Receivers for receiving multi-carrier orthogonally coded signals
US20040252753A1 (en) * 2003-04-14 2004-12-16 Samsung Electronics Co., Ltd. Apparatus and method for generating and receiving traffic in a block spreading code division multiple access mobile communication system

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5166951A (en) * 1991-05-15 1992-11-24 Scs Mobilecom, Inc. High capacity spread spectrum channel
US6483866B1 (en) * 1993-10-12 2002-11-19 Ntt Mobile Communications Network Inc. Multi-station transmission method and receiver for inverse transforming two pseudo-orthogonal transmission sequences used for metric calculation and base station selection based thereon
US5828660A (en) * 1996-04-26 1998-10-27 Motorola, Inc. Multiple user communication system, device and method with overlapping uplink carrier spectra
US6141373A (en) * 1996-11-15 2000-10-31 Omnipoint Corporation Preamble code structure and detection method and apparatus
US5867478A (en) * 1997-06-20 1999-02-02 Motorola, Inc. Synchronous coherent orthogonal frequency division multiplexing system, method, software and device
US6359874B1 (en) * 1998-05-21 2002-03-19 Ericsson Inc. Partially block-interleaved CDMA coding and decoding
US6185199B1 (en) * 1997-07-23 2001-02-06 Qualcomm Inc. Method and apparatus for data transmission using time gated frequency division duplexing
JPH11251959A (en) * 1998-03-05 1999-09-17 Fujitsu Ltd Interference canceler device and radio communication equipment
EP0989696B1 (en) * 1998-05-07 2014-08-20 Ntt Docomo, Inc. Method of assignment and transmission of spread signals in direct sequence spread spectrum cdma mobile communication system, mobile communication system, and transmitter, receiver and transmitter/receiver of mobile communication system
US6393047B1 (en) * 1998-06-16 2002-05-21 Telefonaktiebolaget Lm Ericsson (Publ) Quadriphase spreading codes in code division multiple access communications
KR100315709B1 (en) * 1998-12-29 2002-02-28 윤종용 Channel Spreader and Method in Mobile Communication System
KR100442607B1 (en) * 1999-02-04 2004-08-02 삼성전자주식회사 Appratus and method for spreading channel in cdma communication system
FR2814885B1 (en) * 2000-10-03 2003-05-30 Mitsubishi Electric Inf Tech BASE STATION SYNCHRONIZATION METHOD
US7230910B2 (en) * 2001-01-30 2007-06-12 Lucent Technologies Inc. Optimal channel sounding system
WO2002101939A2 (en) 2001-06-08 2002-12-19 Broadcom Corporation Robust burst detection and acquisition system and method
US7773699B2 (en) 2001-10-17 2010-08-10 Nortel Networks Limited Method and apparatus for channel quality measurements
US8363690B2 (en) * 2002-08-28 2013-01-29 Alcatel Lucent Codeword synthesizing system and a correlation system, methods of operation thereof and a spread spectrum communications transceiver employing the same
JP3643366B2 (en) * 2003-07-10 2005-04-27 松下電器産業株式会社 CDMA transmitter and CDMA receiver
KR100950646B1 (en) * 2003-10-16 2010-04-01 삼성전자주식회사 Method for transmitting preamble in order to synchronous mimo ofdm communication system
US20050141459A1 (en) * 2003-12-29 2005-06-30 Intel Corporation Apparatus and associated methods to reduce management overhead in a wireless communication system
US7773950B2 (en) * 2004-06-16 2010-08-10 Telefonaktiebolaget Lm Ericsson (Publ) Benign interference suppression for received signal quality estimation
CA2575317C (en) * 2004-07-27 2012-12-11 Zte San Diego, Inc. Transmission and reception of reference preamble signals in ofdma or ofdm communication systems
KR100594156B1 (en) * 2004-09-10 2006-06-28 삼성전자주식회사 Preamble Sequence Transmit / Receive Method in Orthogonal Frequency Division Multiplexing System Using Multiple Input Multiple Output System
US7664076B2 (en) * 2004-12-13 2010-02-16 Electronics And Telecommunications Research Institute Random access apparatus and method
KR100899749B1 (en) * 2005-01-13 2009-05-27 삼성전자주식회사 Method for transmitting and receiving preamble sequences in an orthogonal frequency division multiplexing communication system using multiple input multiple output scheme
US8045599B2 (en) * 2005-02-17 2011-10-25 Sony Corporation Selection of training sequences for multiple-in multiple-out transmissions
US7522656B2 (en) * 2005-03-16 2009-04-21 Nokia Corporation Reception of multiple code length CDMA transmissions
US8000305B2 (en) * 2006-01-17 2011-08-16 Motorola Mobility, Inc. Preamble sequencing for random access channel in a communication system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040252667A1 (en) * 1997-07-22 2004-12-16 Dent Paul W. Receivers for receiving multi-carrier orthogonally coded signals
WO2001013531A1 (en) * 1999-08-17 2001-02-22 British Telecommunications Public Limited Company Signal generator and decoder
US6744807B1 (en) * 2000-05-31 2004-06-01 University Of Pretoria Multi-dimensional spread spectrum modem
US20020118635A1 (en) * 2000-11-13 2002-08-29 Nee Didier Johannes R. Van Communication system
US20040252753A1 (en) * 2003-04-14 2004-12-16 Samsung Electronics Co., Ltd. Apparatus and method for generating and receiving traffic in a block spreading code division multiple access mobile communication system

Also Published As

Publication number Publication date
EP1985023A4 (en) 2014-08-13
WO2007087602A2 (en) 2007-08-02
US8005153B2 (en) 2011-08-23
US20070171995A1 (en) 2007-07-26
EP1985023A2 (en) 2008-10-29
US20100226413A1 (en) 2010-09-09

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