Variable Delay Transmit Diversity
AssigneeTelecom Italis S.P.A.
InventorsBruno Melis, Alfredo Ruscitto, Paolo Semenzato
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Abstract
A system for transmitting a signal via diversity antennas includes at least one delay element for generating at least one delayed replica of the signal subject to a given delay, the signal and the at least one delayed replica being adapted to be transmitted via the diversity antennas, and a control unit for the at least one delay element for varying the given delay, whereby the signal and the at least one delayed replica, transmitted via the diversity antennas, give rise to alternate constructive and destructive combinations therebetween.
Claims46
1-45. (canceled)
In a wireless telecommunication system which provides communication services to a plurality of terminals, a method of transmitting a signal comprising the steps of:
- generating at least one delayed replica of said signal subject to a given delay;
- transmitting said signal and said at least one delayed replica via diversity antennas;
- and
- varying said given delay, whereby said signal and said at least one delayed replica transmitted via said diversity antennas, give rise to alternate constructive and destructive combinations therebetween.
In a wireless telecommunication system, which provides communication services to a plurality of mobile terminals, an apparatus for transmitting a signal via diversity antennas comprising:
- at least one delay element for generating at least one delayed replica of said signal subject to a given delay, said signal and said at least one delayed replica to be transmitted via said diversity antennas;
- and
- a control unit of said at least one delay element for varying said given delay, whereby said signal and said at least one delayed replica transmitted via said diversity antennas, give rise to alternate constructive and destructive combinations therebetween.
Dependencies are inferred from the claim text.