Phase-sweep transmit diversity (PSTD) for shared data channels: a critical analysis

GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489) Pub Date : 2003-12-01 DOI:10.1109/GLOCOM.2003.1258624

A. L. Moustakas, Pantelis Monogioudis

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Abstract

We propose a promising multi-antenna scheme specifically suitable for hybrid code and time division multiplexed (CTDM) high speed shared channels commonly employed in 3GPP and 3GPP2 standards, such as HS-DPA, 1xEVDO (HDR), and 1xEVDV. The scheme is called phase sweep transmit diversity (PSTD) and was originally proposed for power controlled dedicated voice channels. PSTD is shown to provide the benefits of beamforming without the requirement for channel or weight information feedback from the receiver to the transmitter. We evaluate the benefits of PSTD for two antenna configurations: (a) the so-called BF-2V configuration that encompasses two closely-spaced (/spl lambda//2) vertically polarized antenna columns: (b) the so-called DIV-2V antenna configurations, in which the two antenna columns are widely-spaced (10-20 /spl lambda/). When compared to selection transmit diversity (STD) and the baseline case of a single antenna transmission, PSTD offers significant gains for low-tier mobility users. In addition, the closely spaced antenna configuration produces consistently higher sector throughput as compared to the widely spaced configuration.

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共享数据通道的相位扫描传输分集(PSTD):一个关键的分析

我们提出了一种有前途的多天线方案，特别适用于3GPP和3GPP2标准中常用的混合编码和时分复用(CTDM)高速共享信道，如HS-DPA, 1xEVDO (HDR)和1xEVDV。该方案被称为相位扫描发射分集(PSTD)，最初是为功率控制专用语音信道提出的。PSTD可以提供波束形成的优点，而不需要从接收器到发射器的信道或权重信息反馈。我们评估了PSTD对两种天线配置的好处:(a)所谓的BF-2V配置，包含两个紧密间隔的(/spl lambda//2)垂直极化天线柱;(b)所谓的DIV-2V天线配置，其中两个天线柱间距很大(10-20 /spl lambda/)。与选择发射分集(STD)和单天线传输的基线情况相比，PSTD为低层次移动用户提供了显著的收益。此外，与宽间隔配置相比，紧密间隔的天线配置始终产生更高的扇区吞吐量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489)

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