Patent ID: 9100834
Filing Date: 2015-08-04
Classification: H04W

Abstract:
1. A method of allocating uplink reference signals within a cell cluster using a distributed antenna system in combination with coordinated multipoint transmission and reception, said cell cluster having a plurality of border cells adjoining one or more neighboring cell clusters and a plurality of interior cells spaced apart from the neighboring cell clusters by the border cells, the method comprising: partitioning, using a controller within the cell cluster, a set of uplink reference signals allocated to the cell cluster into mutually exclusive subsets of uplink reference signals; allocating, using the controller, a first subset to each of the border cells; allocating, using the controller, a portion of a second subset to the border cells adjoining only one of the neighboring cell clusters; and allocating, using the controller, the entire set of the uplink reference signals to the interior cells.