Patent ID: 8675632
Filing Date: 2014-03-18
Classification: H04B,H04L

Abstract:
1. A method for generating reference signals used in Single User Spatial Multiplexing between a mobile terminal and an access node in a cellular communication network, the method comprising: receiving, by the mobile terminal, a cyclic shift set indicator; selecting, from a group of cyclic shift sets of a plurality of groups of cyclic shift sets, a cyclic shift set based on the received cyclic shift set indicator, each cyclic shift set comprising at least two parameters, wherein each parameter indicates a cyclic shift and wherein the cyclic shift sets of different groups of cyclic shift sets comprise a different number of parameters; and generating, based on at least two parameters of the selected cyclic shift set, at least two orthogonal reference signals for at least two layers of a Single User Spatial Multiplexing transmission scheme to be simultaneously transmitted.