INTERFERENCE CANCELLATION IN A SPREAD SPECTRUM COMMUNICATION SYSTEM

摘要

A method and apparatus used to transmit and receive weighted data transmissions over a plurality of antennas using a plurality of different pilot signals. Different pilot signals are produced and a different pilot signal of the plurality of pilot signals is transmitted on each of a plurality of antennas. Each of the pilot signals is derived from a pseudo noise (PN) sequence and a bit sequence of the PN sequence for each of the pilot signals is different. A plurality of data streams are produced in which each of the data streams has data bits combined with bits of a PN sequence. The data streams are weighted in response to weight information received from a receiving device and the plurality of weighted data streams are transmitted using the plurality of antennas.

主权项

1. A transmitting device comprising:
circuitry configured to produce a plurality of pilot signals; wherein a different pilot signal of the plurality of pilot signals is transmitted on each of a plurality of antennas; wherein each of the pilot signals is derived from a pseudo noise (PN) sequence and a bit sequence of the PN sequence for each of the pilot signals is different; the circuitry is further configured to produce a plurality of data streams; wherein each of the data streams has data bits combined with bits of a PN sequence; and the circuitry is further configured to weight the data streams in response to weight information received from a receiving device and transmit the plurality of weighted data streams using the plurality of antennas.