Patent ID: 8228862
Filing Date: 2012-07-24
Classification: H04L

Abstract:
1. For use in a wireless network comprising a plurality of base stations for communicating with subscriber stations using orthogonal frequency division multiplexing (OFDM), wherein a first base station comprises: a downlink transmit path comprising circuitry configured to transmit a plurality of dedicated reference (DR) signals in even-numbered time slots and odd-numbered time slots, each of the even-numbered and odd-numbered time slots comprising S OFDM symbols, each of the S OFDM symbols comprising N subcarriers, and each subcarrier of each OFDM symbol comprises a resource element, and wherein resource elements in an even-numbered time slot and a contiguous odd-numbered time slot are assigned to a first resource block comprising a first set of contiguous subcarriers of the S OFDM symbols in the even-numbered time slot and the contiguous odd-numbered time slot and to a second resource block comprising a second set of contiguous subcarriers of the S OFDM symbols in the even-numbered time slot and the contiguous odd-numbered time slot; and a reference signal allocator configured to allocate the plurality of DR signals to selected resource elements, wherein: