METHOD, SYSTEM AND APPARATUS FOR DOWNLINK SHARED CHANNEL RECEPTION IN COOPERATIVE MULTIPOINT TRANSMISSIONS

摘要

A method and apparatus may be used to enable reception of a downlink (DL) shared channel in a cooperative multipoint transmission (CoMP). The method and apparatus may determine whether CoMP is applied to a transmission. The method and apparatus may acquire other CoMP related information. The method and apparatus may apply to non-transparent CoMP scenarios.

主权项

1. A method implemented in a wireless transmitreceive unit (WTRU) in communication with a plurality of transmission (Tx) points, comprising:
receiving radio resource control (RRC) signaling including first and second parameters of a demodulation reference signals (DM-RS) configuration associated with the plurality of Tx points; receiving, on a downlink control channel associated with a forthcoming coordinated downlink transmission to the WTRU, downlink control information including a scrambling identity; on condition that the scrambling identity is a first value, generating a first DM-RS sequence for receiving DM-RS of the coordinated downlink transmission using the first parameter and the first value of the scrambling identity as inputs for initializing the first DM-RS sequence; and on condition that the scrambling identity is a second value, generating a second DM-RS sequence for receiving DM-RS of the coordinated downlink transmission using the second parameter and the second value of the scrambling identity as inputs for initializing the second DM-RS sequence.