CA2696795A1 - Method of generating reference signal in wireless communication system - Google Patents

Method of generating reference signal in wireless communication system Download PDF

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Publication number
CA2696795A1
CA2696795A1 CA2696795A CA2696795A CA2696795A1 CA 2696795 A1 CA2696795 A1 CA 2696795A1 CA 2696795 A CA2696795 A CA 2696795A CA 2696795 A CA2696795 A CA 2696795A CA 2696795 A1 CA2696795 A1 CA 2696795A1
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CA
Canada
Prior art keywords
reference signal
base sequence
sequence
wireless communication
communication system
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Granted
Application number
CA2696795A
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French (fr)
Other versions
CA2696795C (en
Inventor
Seung Hee Han
Minseok Noh
Daewon Lee
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LG Electronics Inc
Original Assignee
Lg Electronics Inc.
Seung Hee Han
Minseok Noh
Daewon Lee
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Application filed by Lg Electronics Inc., Seung Hee Han, Minseok Noh, Daewon Lee filed Critical Lg Electronics Inc.
Publication of CA2696795A1 publication Critical patent/CA2696795A1/en
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Classifications

    • 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
    • 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
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0074—Code shifting or hopping
    • 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
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

A method of generating a reference signal includes acquiring a base sequence and acquiring a reference signal sequence with a length N from the base sequence. Good PAPR/CM characteristics of the reference signal can be kept to enhance performance of data demodulation or uplink scheduling.

Claims (10)

  1. [1] A method of generating a reference signal in a wireless communication system, the method comprising:
    acquiring (S210) a base sequence x u(n); and acquiring (S220) a reference signal sequence r(n) with a length of N from the base sequence x u(n), wherein the base sequence x u(n) is expressed by x u(n)e jp(n).pi./4 and if N=12, at least one of the values provided in the below table is used as a value of the phase parameter p(n):

  2. [2] The method of claim 1, wherein, if N=24, at least one of the values provided in the below table is used as a value of the phase parameter p(n):

  3. [3] The method of claim 1, wherein the reference signal sequence r(n) is acquired as r(n)=e j.alpha.n x u(n) by a cyclic shift .alpha. of the base sequence x u(n).
  4. [4] A method for transmitting a reference signal in a wireless communication system, the method comprising:
    acquiring (S220) a reference signal sequence r(n) with a length N from a base sequence x u,(n);
    mapping (S230) the reference signal sequence to the N number of subcarriers;
    and transmitting (S240) the mapped reference signal sequences on an uplink channel, wherein the base sequence x u(n) is expressed by x u(n) = e jp(n).pi./4 and if N=12, at least one of the values provided in the below table is used as a value of the phase parameter p(n):

  5. [5] The method of claim 4, wherein, if N=24, at least one of the values provided in the below table is used as a value of the phase parameter p(n):

  6. [6] The method of claim 1, wherein the reference signal sequence r(n) is acquired as r(n) = e j.alpha.n x u(n) by a cyclic shift .alpha. of the base sequence x u(n).
  7. [7] The method of claim 4, wherein the uplink channel is a physical uplink control channel (PUCCH).
  8. [8] The method of claim 4, wherein the uplink channel is a physical uplink shared channel (PUSCH).
  9. [9] The method of claim 4, wherein the reference signal sequence r(n) is a de-modulation reference signal used for demodulating uplink data.
  10. [10] The method of claim 4, wherein the reference signal sequence r(n) is a sounding reference signal used for user scheduling.
CA2696795A 2007-09-07 2008-09-05 Method of generating reference signal in wireless communication system Active CA2696795C (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US97075407P 2007-09-07 2007-09-07
US60/970,754 2007-09-07
US97240107P 2007-09-14 2007-09-14
US60/972,401 2007-09-14
US97868707P 2007-10-09 2007-10-09
US97841507P 2007-10-09 2007-10-09
US60/978,687 2007-10-09
US60/978,415 2007-10-09
KR1020080033799A KR100940730B1 (en) 2007-09-07 2008-04-11 Method of generating reference signal in wireless communication system
KR10-2008-0033799 2008-04-11
PCT/KR2008/005271 WO2009031862A2 (en) 2007-09-07 2008-09-05 Method of generating reference signal in wireless communication system

Publications (2)

Publication Number Publication Date
CA2696795A1 true CA2696795A1 (en) 2009-03-12
CA2696795C CA2696795C (en) 2012-11-20

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ID=40694243

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2696795A Active CA2696795C (en) 2007-09-07 2008-09-05 Method of generating reference signal in wireless communication system

Country Status (13)

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US (6) US7848448B2 (en)
EP (6) EP2584751B1 (en)
JP (1) JP5086437B2 (en)
KR (1) KR100940730B1 (en)
CN (2) CN103281277B (en)
BR (2) BR122019026390B1 (en)
CA (1) CA2696795C (en)
DK (1) DK2186282T3 (en)
ES (5) ES2415731T3 (en)
GB (1) GB2464254B (en)
HU (3) HUE056498T2 (en)
PL (2) PL3621262T3 (en)
WO (1) WO2009031862A2 (en)

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EP2584751B1 (en) 2015-11-18
CN101796789A (en) 2010-08-04
US20220158809A1 (en) 2022-05-19
CN103281277A (en) 2013-09-04
PL3621262T3 (en) 2022-01-03
GB2464254A (en) 2010-04-14
US8594229B2 (en) 2013-11-26
HUE042740T2 (en) 2019-07-29
EP3621262B1 (en) 2021-07-28
US8705653B2 (en) 2014-04-22
HUE048424T2 (en) 2020-08-28
EP3902219A1 (en) 2021-10-27
US20120076097A1 (en) 2012-03-29
US20120076098A1 (en) 2012-03-29
GB2464254B (en) 2012-01-25
BR122019026390B1 (en) 2020-08-18
EP2186282A2 (en) 2010-05-19
EP2584751A1 (en) 2013-04-24
BRPI0815617B1 (en) 2020-09-15
ES2710364T3 (en) 2019-04-24
EP3054640B1 (en) 2018-11-07
JP2010538569A (en) 2010-12-09
US11283580B2 (en) 2022-03-22
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