Patent ID: 8169950

Claim:
A method for operating a wireless communication system, comprising: sending an indication of a first sequence from a primary node to at least one secondary node, wherein the first sequence is of length N, and wherein the first sequence is selected from a restricted sequence set comprising of M sequences of length N each, wherein M<N, and wherein an element-wise product of at least one pair of the first sequences from the restricted sequence set results in a mirror-symmetric sequence; sending an indication of a second sequence from the primary node to at most two secondary nodes, wherein the second sequence comprises at least two samples; and wherein indications of both sequences pertain to a time-frequency resource; and receiving a transmission signal produced by the secondary node, wherein transmission signal comprises a time duration set comprising of N logical time durations, wherein the transmission signal in a K-th logical time duration is generated by operating on the entire second sequence with the K-th element of the first sequence.