TPTDSCDMAWP

This description is about the TPTDSCDMAWP and presents details of the spatial-temporal processing of a received TDSCDMA signal and its channel impulse response.This document is targeted at systems engineers who are designing TD-SCDMA systems who are interested in deploying the Motorola MRC6011 in their designs. TPTDSCDMAWP is also targeted to applications engineers and marketing professions who want to learn more about the broad range of applications of the Motorola RCF technology.

Joint Detection algorithms of TPTDSCDMAWP on the other hand are designed to process all users in parallel by including the interference information from the other users. In general Joint Detection schemes are complex and computationally intensive (complexity grows exponentially as the number of users increases) because most of the operations are matrix and vector based operations, as the number of the users increase, the sizes of the matrices and vectors increases and therefore the computation power that is required to separate the users.

In the year 1998 the Chinese Wireless Telecommunications Standard (CWTS,http://www.cwts.org) put forth a proposal to the International Communications Union (ITU) based on TDD and Synchronous CDMA technology (TD-SCDMA) for TDD. This proposal of TPTDSCDMAWP was accepted and approved by the ITU and became part of 3GPP in March of 2001.TD-SCDMA was incorporated as part of the TDD mode of operation in addition to the existing TDD-CDMA mode of operation. To accommodate both modes,3GPP now includes a "low chip rate" mode of 1.28 Mcps that corresponds to the TD-SCDMA  pecifications. Because of this TD-SCDMA is sometimes referred to as the low-chip rate mode of UTRA TDD.