/ EPDCCH / SYSTEMS AND/OR METHODS FOR PROVIDING EPDCCH IN A MULTIPLE CARRIER BASED AND/OR QUASI-COLLATED NETWORK

摘要

ePDCCH is provided. For example, the WTRU may receive a configuration for monitoring ePDCCH resources. Based on this configuration, the WTRU is configured to monitor ePDCCH resources in a specific subframe and can monitor the ePDCCH resources. Additionally, the WTRU may derive the aggregation level for subframes associated with the aggregation level number (NAL). The WTRU may transmit or monitor the ePDCCH using the aggregation level associated with the NAL for the subframe. The WTRU may also receive a reference signal. The WTRU can then determine the type of reference signal received. The WTRU may perform demodulation of PDSCH or ePDCCH using demodulation timing based on the determined type. The ePDCCH or PDSCH can also be monitored or received by implicitly identifying the demodulation reference timing based on the location of one or more ePDCCH resources where the WTRU receives DCI.