Patent ID: 8948100
Filing Date: 2015-02-03
Classification: H04L,H04W

Abstract:
1. A method for operating multi-user Collaborative Spatial Multiplexing (CSM) in a wireless communication system, the method comprising: performing uplink transmission scheduling on multiple Mobile Stations (MSs) for allocating the multiple MSs to multiple layers spatially discriminated for the multi-user CSM, wherein a first layer is allocated to a first MS and a second layer is allocated to at least one second MS; permutating resource units, which have been allocated to the multiple layers, by applying different permutation schemes according to the layers such that self-interference values between the first MS in the first layer and the at least one second MS in the second layer are averaged; and receiving uplink data from the scheduled MSs through the permutated resource units, wherein the permutating changes an array of indexes of the resource units according to a permutation scheme of each layer.