Patent ID: 8750240
Filing Date: 2014-06-10
Classification: H04B,H04L,H04W

Abstract:
1. A method of allocating time-frequency resources to mobile terminals in a wireless communications system in which allocated time-frequency resources may be selectively used according to a first multiple-input multiple-output (MIMO) transmission scheme or a second MIMO transmission scheme that differs from the first MIMO transmission scheme, the method comprising, for at least a first scheduling instance: identifying a first group of mobile terminals corresponding to the first MIMO transmission scheme and a second group of mobile terminals corresponding to the second MIMO transmission scheme; allocating time-frequency resources in a first pre-determined time-frequency zone exclusively to mobile terminals belonging to the first group; and allocating time-frequency resources in one or more additional pre-determined time-frequency zones to one or more mobile terminals belonging to the second group; wherein the first MIMO transmission scheme comprises either a space-time or a space-frequency coding transmission scheme and the second MIMO transmission scheme comprises a spatial multiplexing transmission scheme.