Patent ID: 9031008
Filing Date: 2015-05-12
Classification: H04B,H04L,H04W

Abstract:
1. A method for communicating with a plurality of subscriber stations, the method comprising: transmitting a downlink grant downlink control information (DCI) format and data in a subframe from a base station to at least one of the plurality of subscriber stations, wherein the downlink grant DCI format is configured to schedule a Physical Downlink Shared CHannel (PDSCH) with one or two enabled codewords, wherein the downlink grant DCI format comprises a 3-bit field indicating at least a number of antenna ports for the PDSCH, a corresponding set of indices for the antenna ports, and a scrambling identifier (ID), and wherein, when the PDSCH is scheduled with two enabled codewords, a state of the 3-bit field indicates the number of antenna ports as follows: