Patent ID: 9008036
Filing Date: 2015-04-14
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A transmitter comprising: sub-carrier mapping circuitry adapted to map data information for modulation on sub-carriers of a plurality of traffic symbols and map pilot information for a transmission path of the transmitter for modulation on sub-carriers of at least one pilot symbol for a transmit time interval; pilot generation circuitry adapted to generate the pilot information with a code division multiplexing code for the transmission path of the transmitter; and modulation circuitry adapted to modulate the data information onto at least certain of the sub-carriers of the plurality of traffic symbols and modulate the pilot information for the transmission path of the transmitter onto at least certain of the sub-carriers of the at least one pilot symbol, such that the pilot information for the transmitter and pilot information for one or more other transmission paths or transmitters are orthogonally modulated via code division multiplexing codes on sub-carriers of the at least one pilot symbol in the transmit time interval.