SYSTEM AND METHOD FOR ACQUISITION IN WIRELESS COMMUNICATION SYSTEMS Russian patent published in 2011 - IPC H04B7/05 

FIELD: information technology.

SUBSTANCE: base station periodically transmits a preamble in each superframe. The preamble includes at least one first OFDM symbol for control information followed by at least one second OFDM symbol for paging information. A terminal receives the first and second OFDM symbols and determines receiver gain based on the received power of the first OFDM symbol(s), e.g., with an AGC loop having a shorter time constant than the duration of the first OFDM symbol(s). The terminal processes the second OFDM symbol(s) based on the receiver gain to obtain the paging information. The terminal may operate in an idle state, determine superframes assigned to the terminal, sleep between the assigned superframes, and process the first and second OFDM symbols in each assigned superframe to obtain the paging information.

EFFECT: increase in demodulation efficiency of one second OFDM symbol, with simultaneous shortening of the time for activating the terminal for receiving paging information.

31 cl, 10 dwg