Designs of precoding for LTE TDD using cell specific reference signals

Research output: Contribution to journalConference article in JournalResearchpeer-review

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Abstract

We design non-codebook-based Multiple-Input Multiple-Output (MIMO) precoding schemes using multiple cell-specific reference signals patterns for the time division duplex (TDD) mode of LTE, where channel reciprocity can be exploited. Previously proposed non-codebookbased precoding schemes typically use UE specific reference signals for demodulation. Cell specific reference signals are however always allocated for the transmission of common control signalling, mobility measurements and downlink channel quality measurements. In order to save the resources occupied by UE specific reference signals, and to simplify UE implementation, a precoder-estimation scheme and a codebook-assisted scheme are designed. The codebook-assisted scheme has the novelty of using a codebook in equalization. Link throughput simulations indicate that the codebook-assisted scheme is preferable compared to the precoder-estimation scheme and the scheme using UE specific reference signals in scenarios with moderate UE velocity.
Original languageEnglish
JournalGlobecom. I E E E Global Telecommunications Conference
Volume2010
Pages (from-to)871-875
ISSN1930-529X
DOIs
Publication statusPublished - 2010
EventIEEE GLOBAL COMMUNICATIONS CONFERENCE, IEEE GLOBECOM 2010 - Miami, United States
Duration: 6 Dec 201010 Dec 2010
http://www.ieee-globecom.org/2010/

Conference

ConferenceIEEE GLOBAL COMMUNICATIONS CONFERENCE, IEEE GLOBECOM 2010
CountryUnited States
CityMiami
Period06/12/201010/12/2010
Internet address

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Bibliographical note

ISBN: 978-1-4244-8864-3

Keywords

  • cell specific reference signals
  • MIMO precoding
  • codebook
  • LTE
  • TDD

Cite this

@inproceedings{3c592da4e7124d87a9e4f62e2e1c41e4,
title = "Designs of precoding for LTE TDD using cell specific reference signals",
abstract = "We design non-codebook-based Multiple-Input Multiple-Output (MIMO) precoding schemes using multiple cell-specific reference signals patterns for the time division duplex (TDD) mode of LTE, where channel reciprocity can be exploited. Previously proposed non-codebookbased precoding schemes typically use UE specific reference signals for demodulation. Cell specific reference signals are however always allocated for the transmission of common control signalling, mobility measurements and downlink channel quality measurements. In order to save the resources occupied by UE specific reference signals, and to simplify UE implementation, a precoder-estimation scheme and a codebook-assisted scheme are designed. The codebook-assisted scheme has the novelty of using a codebook in equalization. Link throughput simulations indicate that the codebook-assisted scheme is preferable compared to the precoder-estimation scheme and the scheme using UE specific reference signals in scenarios with moderate UE velocity.",
keywords = "cell specific reference signals, MIMO precoding, codebook, LTE, TDD",
author = "Fan Sun and Lu Lu and S{\o}rensen, {Troels Bundgaard}",
note = "ISBN: 978-1-4244-8864-3",
year = "2010",
doi = "10.1109/GLOCOMW.2010.5700449",
language = "English",
volume = "2010",
pages = "871--875",
journal = "Globecom. I E E E Conference and Exhibition",
issn = "1930-529X",
publisher = "IEEE Communications Society",

}

Designs of precoding for LTE TDD using cell specific reference signals. / Sun, Fan; Lu, Lu ; Sørensen, Troels Bundgaard.

In: Globecom. I E E E Global Telecommunications Conference, Vol. 2010, 2010, p. 871-875.

Research output: Contribution to journalConference article in JournalResearchpeer-review

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AB - We design non-codebook-based Multiple-Input Multiple-Output (MIMO) precoding schemes using multiple cell-specific reference signals patterns for the time division duplex (TDD) mode of LTE, where channel reciprocity can be exploited. Previously proposed non-codebookbased precoding schemes typically use UE specific reference signals for demodulation. Cell specific reference signals are however always allocated for the transmission of common control signalling, mobility measurements and downlink channel quality measurements. In order to save the resources occupied by UE specific reference signals, and to simplify UE implementation, a precoder-estimation scheme and a codebook-assisted scheme are designed. The codebook-assisted scheme has the novelty of using a codebook in equalization. Link throughput simulations indicate that the codebook-assisted scheme is preferable compared to the precoder-estimation scheme and the scheme using UE specific reference signals in scenarios with moderate UE velocity.

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