Spectrally efficient high capacity wireless communication systems with spatio-temporal processing

In a wireless system a method for calculating uplink signals transmitted from a plurality of remote terminals using a common uplink channel, said system including at least one base station, said at least one base station including a plurality of antenna elements and receivers for producing measurements of combinations of said uplink signals from said plurality of remote terminals using said common uplink channel, said method comprising the steps of:

• receiving at the receivers of said at least one base station measurements of combinations of said uplink signals from said plurality of remote terminals using said common uplink channel;
• receive spatio-temporal processing for determining and storing receive spatio-temporal signatures for said plurality of remote terminals using said measurements;
• and
• spatio-temporal demultiplexing using said receive spatio-temporal signatures and said measurements to produce separated uplink signals.

A wireless system including at least one base station for transmitting to a plurality of remote terminals using a common downlink channel, said system comprising:

• transmission means at said at least one base station including a plurality of transmit antenna elements and transmitters for transmitting multiplexed downlink signals to said plurality of remote terminals;
• transmit spatio-temporal processing means for determining and storing transmit spatio-temporal signatures for said plurality of remote terminals;
• and
• spatio-temporal multiplexing means using said transmit spatio-temporal signatures and downlink signals to produce said multiplexed downlink signals,
• whereby said at least one base station can transmit said downlink signals to said plurality of remote terminals simultaneously on a common downlink channel.

In a wireless system including at least one base station, said at least one base station including a plurality of transmit antenna elements and transmitters, the method for transmitting to a plurality of remote terminals using a common downlink channel, said method comprising:

• transmitting multiplexed downlink signals to said plurality of remote terminals using said transmitters at said at least one base station;
• transmit spatio-temporal processing for determining and storing transmit spatio-temporal signatures for said plurality of remote terminals;
• and
• spatio-temporal multiplexing using said transmit spatio-temporal signatures and downlink signals to produce said multiplexed downlink signals.