SYSTEM AND METHODS FOR HSDPA MULTI-USER MIMO OPERATION

摘要

A method of providing feedback from a wireless transmit and receive unit (WTRU) to a network device, the method comprising operating in multi-user multiple input and multiple output (MU-MIMO) mode; determining a single-user multiple input and multiple output (SU-MIMO) channel quality indicator (CQI) and precoding control information (PCI); determining an MU-MIMO CQI and PCI based on an assumption that an interfering stream is transmitted using a precoding weight; and transmitting the SU-MIMO CQI and PCI and the MU-MIMO CQI and PCI on a high speed dedicated physical control channel (HS-DPCCH).