Determining transmitting stations in an OFDMA network

Bestimmung der Sendestationen in einem OFDMA-Netzwerk

Détermination des stations émettrices dans un réseau OFDMA


Preamble modulation codes in an OFDMA network are assigned to one of at least two groups, one of the groups indicating that codes assigned to the group are for base stations in the network and a different one of the groups indicating that codes assigned to the group are for relay stations in the network. A mobile station attempting to enter or re-enter the network receives a signal transmitted from a station in the network and determines whether the station that transmitted the received signal is a base station or a relay station based on the group to which the preamble modulation code of the received signal was assigned.




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