TY - CONF

T1 - Designs of precoding for LTE TDD using cell specific reference signals

A1 - Sun,Fan

A1 - Lu,Lu

A1 - Sørensen,Troels Bundgaard

AU - Sun,Fan

AU - Lu,Lu

AU - Sørensen,Troels Bundgaard

PB - I E E E

PY - 2010

Y1 - 2010

N2 - 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.

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.

KW - cell specific reference signals

KW - MIMO precoding

KW - codebook

KW - LTE

KW - TDD

U2 - 10.1109/GLOCOMW.2010.5700449

DO - 10.1109/GLOCOMW.2010.5700449

JO - Globecom. I E E E Global Telecommunications Conference

JF - Globecom. I E E E Global Telecommunications Conference

SN - 1930-529X

VL - 2010

SP - 871

EP - 875

ER -