WO2017051255A3 - Method and apparatus for processing drms signals in a wireless communication system - Google Patents

Method and apparatus for processing drms signals in a wireless communication system Download PDF

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Publication number
WO2017051255A3
WO2017051255A3 PCT/IB2016/001512 IB2016001512W WO2017051255A3 WO 2017051255 A3 WO2017051255 A3 WO 2017051255A3 IB 2016001512 W IB2016001512 W IB 2016001512W WO 2017051255 A3 WO2017051255 A3 WO 2017051255A3
Authority
WO
WIPO (PCT)
Prior art keywords
processing
present
lte protocol
dmrs
drms
Prior art date
Application number
PCT/IB2016/001512
Other languages
French (fr)
Other versions
WO2017051255A2 (en
Inventor
Qingchuan ZHANG
Min Zhang
Original Assignee
Alcatel Lucent
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 Alcatel Lucent filed Critical Alcatel Lucent
Publication of WO2017051255A2 publication Critical patent/WO2017051255A2/en
Publication of WO2017051255A3 publication Critical patent/WO2017051255A3/en

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
    • H04L5/003—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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0026—Division using four or more dimensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/0026—Interference mitigation or co-ordination of multi-user interference
    • H04J11/003—Interference mitigation or co-ordination of multi-user interference at the transmitter
    • 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
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2211/00—Orthogonal indexing scheme relating to orthogonal multiplex systems
    • H04J2211/003—Orthogonal indexing scheme relating to orthogonal multiplex systems within particular systems or standards
    • H04J2211/005—Long term evolution [LTE]
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • 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
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals

Abstract

The present invention relates to a method and apparatus for processing DMRS signal in a LTE protocol-based base station and an user equipment. According to one aspect of the present invention, the method comprises a method for processing DMRS signal in a LTE protocol-based base station, wherein before performing OFDMA modulation, the method further comprises: - performing pattern rotation processing with OCCs on subcarriers corresponding to available DMRS antenna ports so as to reduce power imbalance between OFDM symbols generated subsequently. The solution according to the present invention may eliminate or reduce the imbalance issue between OFDM symbols of the DMRS enhancement technology in the existing LTE protocol.
PCT/IB2016/001512 2015-09-25 2016-09-20 Method and apparatus for processing drms signals in a wireless communication system WO2017051255A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510622983.7A CN106559193B (en) 2015-09-25 2015-09-25 The method and apparatus that DMRS signal is handled in a wireless communication system
CN201510622983.7 2015-09-25

Publications (2)

Publication Number Publication Date
WO2017051255A2 WO2017051255A2 (en) 2017-03-30
WO2017051255A3 true WO2017051255A3 (en) 2017-05-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/001512 WO2017051255A2 (en) 2015-09-25 2016-09-20 Method and apparatus for processing drms signals in a wireless communication system

Country Status (3)

Country Link
CN (1) CN106559193B (en)
TW (1) TW201724788A (en)
WO (1) WO2017051255A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10419181B2 (en) 2017-03-31 2019-09-17 Futurewei Technologies, Inc. System and method for demodulation reference signal overhead reduction
CN108809562B (en) * 2017-05-02 2020-08-28 电信科学技术研究院 DMRS sequence determination method, terminal and network side equipment
CN110933003B (en) * 2019-11-30 2021-09-14 上海大学 DMRS signal generation method based on FPGA

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110110219A1 (en) * 2009-11-11 2011-05-12 Samsung Electronics Co., Ltd. Method and system for balancing reference signal powers across ofdm symbols
US20130195034A1 (en) * 2010-04-20 2013-08-01 Lg Electronics Inc. Method and device for transmitting reference signal in wireless communication system

Family Cites Families (3)

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CN102271109B (en) * 2010-06-07 2015-08-12 中兴通讯股份有限公司 A kind of mapping method of demodulation reference mark and system
KR101783165B1 (en) * 2010-06-16 2017-09-28 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) Methods and arrangements for transmitting and decoding reference signals
EP2995053B1 (en) * 2013-05-08 2020-07-08 Telefonaktiebolaget LM Ericsson (publ) Providing orthogonality for reference signals by circular rotation of a base sequence in the frequency domain

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110110219A1 (en) * 2009-11-11 2011-05-12 Samsung Electronics Co., Ltd. Method and system for balancing reference signal powers across ofdm symbols
US20130195034A1 (en) * 2010-04-20 2013-08-01 Lg Electronics Inc. Method and device for transmitting reference signal in wireless communication system

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
ERICSSON ET AL: "On Rel-10 DM RS design for rank 5-8", 3GPP DRAFT; R1-094438 ON REL-10 DM RS DESIGN FOR RANK 5-8, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. Jeju; 20091109, 9 November 2009 (2009-11-09), XP050388866 *
NOKIA SIEMENS NETWORKS ET AL: "On remaining details of OCC mapping and SGH disabling", 3GPP DRAFT; R1-106210, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Jacksonville, USA; 20101115, 9 November 2010 (2010-11-09), XP050466939 *
RESEARCH IN MOTION ET AL: "Downlink DM-RS Design Considerations for Rank 5-8 in LTE-A", 3GPP DRAFT; R1-100571(RIM-DL_DM-RS RANK 5-8), 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Valencia, Spain; 20100118, 12 January 2010 (2010-01-12), XP050418188 *
SAMSUNG: "Discussion on DMRS enhancement for FD-MIMO", vol. RAN WG1, no. Beijing, China; 20150824 - 20150828, 23 August 2015 (2015-08-23), XP051001533, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN1/Docs/> [retrieved on 20150823] *
SAMSUNG: "Discussion on DMRS OCC Sequence Mapping across OFDM symbols", 3GPP DRAFT; R1-102189, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Beijing, china; 20100412, 6 April 2010 (2010-04-06), XP050419468 *

Also Published As

Publication number Publication date
CN106559193B (en) 2019-09-27
WO2017051255A2 (en) 2017-03-30
CN106559193A (en) 2017-04-05
TW201724788A (en) 2017-07-01

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