Method and device for allocating resources in an OFDM network

摘要

A radio station comprises means for allocating resources for communication with at least one other station, and including means for mapping data to be transmitted from at least the radio station to the at least one other station, and means for applying a cyclic shift to the data mapping, wherein this cyclic shift is adjusted depending on the number of data blocks to be mapped. A possible implementation concerns the mapping of the DVRB (Distributed Virtual Resource Block) in OFDM.

主权项

1. A method for allocating resources for Orthogonal Frequency-Divisional Multiplexing (OFDM) communication between a primary station and at least one secondary station, comprising:
mapping data to be transmitted from at least one transmitting station, being one of the primary station and the at least one secondary station, to at least one receiving station being one of the at least one secondary station and the said primary station, determining a cyclic shift based on a number of distributed virtual resource blocks Nd, to be mapped wherein when Nd is a factor of a number of subcarriers Nsc NSC Mod Nd=0, the cyclic shift applied to an nth OFDM symbol is expressed as S(n)=S0 +F(n, Nd), where S0 is a shift applied to a first OFDM symbol (symbol index n=0); and applying said cyclic shift to the mapped data.