Patent ID: 9166729
Filing Date: 2015-10-20
Classification: H04B,H04K,H04L

Abstract:
1. A method, comprising: in a mobile communication terminal, receiving a Multi-User Multiple-Input Multiple-Output (MU-MIMO) signal, which comprises at least a precoded transmission that is addressed to the terminal and which comprises one or more Demodulation Reference Signals (DM-RS); receiving, in the mobile communication terminal, control information, wherein the control information indicates one or more scrambling sequences and one or more orthogonalization sequences used in producing the DM-RS, and wherein the control information is provided in a compressed format that does not permit signaling of all possible choices of scrambling sequence and orthogonalization sequence; interpreting the control information in the mobile communication terminal based on the compressed format so as to identify, from among all possible choices of scrambling sequence and orthogonalization sequence, the scrambling sequences and orthogonalization sequences used in producing the DM-RS; and demodulating the DM-RS using the identified scrambling sequences and orthogonalization sequences.