Apparatus, system and method of beam selection for beamformed diversity wireless communication
Some demonstrative embodiments include devices, systems and/or methods of beam selection for beamformed communication. For example, an apparatus may include a controller to control a plurality of antenna subarrays to form a plurality of directional beams for communicating a beamformed diversity wireless transmission over a plurality of selected directional links, which are selected based on at least one predefined selection metric.
1. An apparatus comprising:
a controller to control a plurality of antenna subarrays of a first wireless communication device to form a plurality of directional beams to communicate a beamformed diversity wireless transmission between said first wireless communication device and a second wireless communication device over a plurality of selected directional links, which are selected based on at least one predefined selection metric, said controller is to communicate a channel measurement feedback element including a plurality of sector identifiers, each sector identifier identifying an antenna subarray and a sector corresponding to the antenna subarray, the channel measurement feedback element including a plurality of measurements corresponding to said plurality of sector identifiers.
2. The apparatus of claim 1 , wherein said selection metric comprises a channel capacity metric.
3. The apparatus of claim 1 , wherein said selection metric is based on differences in angles of arrival, differences in angles of departure, or a combination thereof.
4. The apparatus of claim 1 , wherein said controller is to determine the selection metric with respect to a directional link based on a channel matrix corresponding to the link and a number of transmit antenna subarrays.
5. The apparatus of claim 1 , wherein said controller is to determine the selection metric with respect to a directional link based on a combination of a plurality of Signal-to-Interference-plus-noise-ratio (SINR) values corresponding to a plurality of received streams of said directional link.
6. The apparatus of claim 5 , wherein said controller is to determine an SINR value of said SINR values based on an effective channel after performing Space-Block-Code processing.
7. The apparatus of claim 1 , wherein said channel measurement feedback element comprises a beam refinement element, and wherein said sector identifier is included in a field of said beam refinement element.
8. The apparatus of claim 7 , wherein said sector identifier comprises a three-bit identifier.
9. The apparatus of claim 1 , wherein said sector identifier comprises a sector number representing the sector corresponding to the antenna subarray.
10. The apparatus of claim 9 , wherein said sector number comprises an 8-bit number.
11. The apparatus of claim 1 , wherein each of said plurality of selected directional links is formed by a pair of a transmit (Tx) sector and a Receive (Rx) sector.
12. The apparatus of claim 1 , wherein said plurality of selected directional links comprise a plurality of beamformed links between said antenna subarrays and one or more antenna subarrays of said second wireless communication device.
13. The apparatus of claim 1 , wherein said beamformed diversity wireless transmission comprises a multi-input-multi-output (MIMO) wireless transmission over said plurality of selected directional links.
14. The apparatus of claim 1 , wherein said beamformed diversity wireless transmission comprises a transmission over a millimeter wave (mmWave) channel, or a directional multi-gigabit (DMG) channel.
15. A system comprising:
at least one first wireless communication device comprising:
one or more antenna arrays controllable as a plurality of antenna subarrays;
a plurality of Radio Frequency (RF) chains coupled to said plurality of antenna subarrays; and
a controller to control said plurality of antenna subarrays to form a plurality of directional beams to communicate a wireless beamformed transmission between said first wireless communication device and a second wireless communication device,
said first wireless communication device is to communicate a channel measurement feedback element including a plurality of sector identifiers, each sector identifier identifying an antenna subarray and a sector corresponding to the antenna subarray, the channel measurement feedback element including a plurality of measurements corresponding to said plurality of sector identifiers.
16. The system of claim 15 , wherein said channel measurement feedback element comprises a beam refinement element, and wherein said sector identifier is included in a field of said beam refinement element.
17. The system of claim 16 , wherein said sector identifier comprises a three-bit identifier.
18. The system of claim 15 , wherein said sector identifier comprises a sector number representing the sector corresponding to the antenna subarray.
19. The system of claim 18 , wherein said sector number comprises an 8-bit number.
20. The system of claim 15 , wherein said controller is to control said plurality of antenna subarrays to form said plurality of directional beams to communicate a beamformed diversity wireless transmission over said plurality of directional beams.
21. The system of claim 20 , wherein said beamformed diversity wireless transmission comprises a multi-input-multi-output (MIMO) wireless transmission over said plurality of directional links.
22. A method comprising:
communicating a channel measurement feedback element including a plurality of sector identifiers, each sector identifier identifying an antenna subarray and a sector corresponding to the antenna subarray, the channel measurement feedback element including a plurality of measurements corresponding to said plurality of sector identifiers;
selecting a plurality of selected directional links for beamformed diversity wireless communication between a Transmitter (Tx) station and a Receiver (Rx) station, based on at least one predefined selection metric; and
controlling a plurality of antenna subarrays to form a plurality of directional beams to communicate a beamformed diversity wireless transmission via said plurality of selected directional links.
23. The method of claim 22 , wherein said selection metric comprises a channel capacity metric.
24. The method of claim 22 , wherein said sector identifier comprises a sector number representing the sector corresponding to the antenna subarray.
25. A product including a non-transitory storage medium having stored thereon instructions that, when executed by a machine, result in:
communicating a channel measurement feedback element including a plurality of sector identifiers, each sector identifier identifying an antenna subarray and a sector corresponding to the antenna subarray, the channel measurement feedback element including a plurality of measurements corresponding to said plurality of sector identifiers;
selecting a plurality of selected directional links for beamformed diversity wireless communication between a Transmitter (Tx) station and a Receiver (Rx) station, based on at least one predefined selection metric; and
controlling a plurality of antenna subarrays to form a plurality of directional beams to communicate a beamformed diversity wireless transmission via said plurality of selected directional links.
26. The product of claim 25 , wherein said selection metric comprises a channel capacity metric.
27. The product of claim 25 , wherein said sector identifier comprises a sector number representing the sector corresponding to the antenna subarray.