WP 2. System Requirements

WP2 supports transmit-receive studies performed in WP3, WP4, WP5 and WP6. Its goals are therefore twofold.

In WP3, WP4 and WP5, the physical layer performance of single-user and multi-user transmit-receive shall be explored. MIMO systems are highly sensitive to certain channel properties, namely the rank property for spatial multiplexing transmission and the antenna correlation property for diversity based transmission. In WP2, we aim at extending existing MIMO channel models in order to fit our simulation needs on the one hand, and to use them to design and validate channel prediction strategies on the other hand. Additionally, this workpackage provides a flexible bandwidth allocation channel model and channel prediction strategies to the research workpackages, i.e. WP3, WP4 and WP5.

As far as WP6 is concerned, the selection of the optimal transmit-receive scheme shall be governed by the QoS requirements set for the envisioned packet services of the long-term evolved 3G systems. Therefore, we also aim at specifying these requirements and at defining signalling procedures for them, in accordance with the 3GPP Study Item entitled "Evolved UTRA (EUTRA) and UTRAN" launched in December 2004 [NTT 04] incorporating the results of the previously launched MIMO and OFDM Study Items. The EUTRA concept will fill the performance gap between enhanced 3G and 4G systems by offering up to 100 Mbps within the 3G spectrum, with low-latency and packet-optimized radio-access technology. It supports flexible transmission bandwidth up to 20 MHz and includes advanced multi-antenna technologies.