Method for synchronization and signaling of occupied bands in orthogonal frequency division multiplexing (OFDM) transmissions

摘要

The present invention provides a method for use in a wireless communication system that supports orthogonal frequency division multiplexing (OFDM) of transmissions over a plurality of subcarriers. One embodiment of the method includes a network entity that allocates one or more of a plurality of sub-bands for communication with an access terminal. Each of the sub-bands includes one or more of the subcarriers and is associated with a corresponding a pseudo-random sequences. The network entity can also transmit one or more of the plurality of pseudo-random sequences over an air interface. The transmitted pseudo-random sequence indicate the sub-bands that are allocated for communication with the access terminal.

主权项

1. A method for use in a wireless communication system that supports orthogonal frequency division multiplexing (OFDM) of transmissions over a plurality of subcarriers having orthogonal frequencies, comprising:
allocating, at a network entity, at least one of a plurality of sub-bands for communication with at least one access terminal, each of the plurality of sub-bands comprising at least one of the plurality of subcarriers and being associated with a corresponding one of a plurality of pseudo-random sequences, wherein each pseudo-random sequence comprises at least one symbol; generating a signal by combining symbols in the plurality of pseudo-random sequences with a plurality of control values that indicate whether a corresponding sub-band is allocated to said at least one access terminal; and transmitting the signal over an air interface, wherein transmitting the signal comprises transmitting at least one of a plurality of orthogonal pseudo-random sequences or pseudo-random sequences that are substantially uncorrelated.