Patent ID: 6023625
Filing Date: 2000-02-08
Classification: H04W

Abstract:
A distributed antenna network, comprising:a plurality of radio transceivers, each transceiver serving a separate one of a plurality of multicast cells; anda plurality of remote antenna units connected to each of said transceivers, each remote antenna unit being positioned to provide coverage for a separate subcell of the multicast cell served by the transceiver to which the remote antenna unit is connected,wherein, within each multicast cell, outgoing information signals are transmitted from the transceiver serving the multicast cell via all of the remote antenna units in the multicast cell, and incoming information signals are received at the transceiver serving the multicast cell via all of the remote antenna units in the multicast cell, andwherein a multicast interference zone between two subcells in a first multicast cell is covered by a remote antenna unit in a second multicast cell, the multicast interference zone being defined as a region in which delays between identical signals passing through the remote antenna units of the two subcells of the first multicast cell disrupt communications of the transceiver serving the first multicast cell, the delays between signals resulting from the remote antenna units of the two subcells being connected to the transceiver serving the first multicast cell by transmission media having different lengths.