Patent ID: 9450722
Filing Date: 2016-09-20
CPC Classification: H04L

Claim Text:
1. A method, performed by a wireless terminal, of mapping a set of reference signal samples to subcarriers within a bandwidth allocated for transmission over a channel, wherein each sample has an associated index value from a set of consecutive index values, and the set of reference signal samples are consecutively ordered by their index value, the method comprising: determining a first subset of samples from the set of reference signal samples that have contiguous index values, wherein a first sample of the first subset of samples has a lowest index value in the set of consecutive index values; determining a second subset of samples from the set of reference signal samples that have contiguous index values, wherein a last sample of the second subset of samples has a highest index value in the set of consecutive index values, wherein each index value of the second subset of samples is higher than each index value of the first subset of samples, and wherein each sample in the set is included in one of the first or second subsets of samples; mapping the second subset of samples to a first subset of subcarriers of the bandwidth, including mapping a first sample of the second subset of samples having a lowest index value of the second subset of samples to a first subcarrier at a first end of the bandwidth; and mapping the first subset of samples to a second subset of subcarriers of the bandwidth, including mapping a last sample of the first subset of samples having a highest index value of the first subset of samples to a last subcarrier at an opposite second end of the bandwidth.