METHOD AND APPARATUS FOR TRANSMISSION MODE DESIGN FOR EXTENSION CARRIER OF LTE ADVANCED

摘要

A system and method includes transmission mode design for Extension Carrier of LTE-Advanced. The system includes a base station capable of communicating with user equipments (UEs) using an extension carrier. The extension carrier is not backwards compatible and does not transmit any LTE Release 8-10 cell-specific reference signals (CRS) or Physical Downlink Control Channel. The system including transmission mode design for Extension Carrier of LTE-Advanced uses a basic demodulation reference signal transmission scheme (Basic DM-RS TS) when the PDSCH transmission uses DCI format 1A. Basic DM-RS TS uses DM-RS ports and does not uses CRS ports.