A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus in an embodiment of the invention the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high-velocity users the restricted set contains a pair of sequences whose element-wise product is mirror symmetric. In other embodiments of the invention the choices of the first sequence and second sequence in a time-frequency resource is arranged such that interference is mitigated. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.