METHOD AND APPARATUS FOR INTER-NODE-B MACRO DIVERSITY IN A SC-FDMA SYSTEM

摘要

A method and apparatus for inter-Node-B macro diversity in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. A distributed subcarrier block including sufficient number of subcarriers to guarantee frequency diversity is allocated to a wireless transmit/receive unit (WTRU) for uplink transmission. The location of the subcarriers is fixed. The information regarding the assigned distributed subcarrier block is sent to Node-Bs in an active set of the WTRU and the Node-Bs receive and decode uplink transmission based on the information. Alternatively, a subcarrier block (either a distributed subcarrier block or a localized subcarrier block) and a starting seed in a frequency and time hopping sequence is allocated to a WTRU for uplink transmission. The information regarding the assigned subcarrier block and the starting seed is sent to Node-Bs in an active set of the WTRU and the Node-Bs receive and decode uplink transmission based on the information.