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US 8,009,096 B2Granted
Method, system and apparatus for determining antenna weighting for transmit diversity
AssigneeMagnolia Broadband Inc.
InventorsHaim Harel, Kenneth Kludt, Yair Karmi
Life of this patent
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Abstract
A method, system and apparatus for determining at least one relative characteristic of a transmit diversity transmitter based on at least one quality indicator based on signals received on the plurality of antennas. In some embodiments of the invention, the relative characteristic may be a relative power or amplitude ratio and/or a phase difference between the signals transmitted on the different antennas.
Claims10
A method of transmitting a signal from a mobile communication device comprising:
- receiving at said mobile communication device a first signal over a plurality of antennas to obtain a respective plurality of receive signals;
- determining at least one relative quality indicator of said receive signals as received at said mobile communication device, wherein said relative quality indicator is selected from the group consisting of:
- received signals power ratio, received signals phase information, and any combination thereof;
- calculating at least one relative transmit characteristic based on said relative quality indicator;
- and
- transmitting from said mobile communication device a second signal over said plurality of antennas by applying said at least one relative transmit characteristic to at least one signal path associated with one of said antennas.
3 more elements
A mobile wireless apparatus comprising:
- a plurality of antennas adapted to receive and transmit signals;
- and
- a processor to analyze a relative quality indicator among receive signals received at said plurality of antennas, said relative quality indicator indicative of the quality of the receive signals as received at the mobile communication apparatus, to calculate at least one relative transmit characteristic based on said relative quality indicator, and to apply said at least one relative transmit characteristic to at least one signal path associated with one of said antennas,
- wherein said relative quality indicator is selected from the group consisting of:
- received signals power ratio, received signals phase information, and any combination thereof.
2 more elements
Dependencies are inferred from the claim text.