Wireless communication method and apparatus for forming, steering and selectively receiving a sufficient number of usable beam paths in both azimuth and elevation
A wireless communication method of exploiting the radio frequency (RF) physical environment to establish a sufficient number of usable multiple paths of RF propagation for facilitating communications. The method is implemented in a wireless communication system including at least one transmitter and at least one receiver. The receiver's antenna is directed towards one of a plurality of reception paths and receives a data stream from the transmitter via the reception path that the receiver antenna is directed towards. The receiver decodes the data stream, reconstructs a modulation pattern of the decoded data stream, and subtracts the reconstructed data stream from a sum of all of the signals received by the receiver via the reception paths. The receiver provides received signal direction information associated with reception paths to the transmitter. The transmitter adjusts and/or eliminates one or more of the reception paths that are unusable based on the signal direction information.
1. A wireless communication apparatus comprising:
a transmitter; and
a beam forming antenna with multiple beam forming elements for transmitting multiple beams over a plurality of beam paths, wherein the beams include a bit or pulse which contains both amplitude information used to determine elevation and phase information used to determine azimuth, and the transmitter narrows the beams in a particular sequence to eliminate some of the beam paths based on feed back information.
2. The apparatus of claim 1 wherein beams in one plane are deflected.
3. The apparatus of claim 1 wherein the beam forming antenna is used to create various beam patterns in an orthogonal plane.
4. The apparatus of claim 1 wherein the tilt and depression of beams formed by the beam forming antenna are variable.
5. The apparatus of claim 1 wherein the beams can be pointed at any desired elevation angle.
6. The apparatus of claim 1 wherein the transmitter is further configured to receive feed back information regarding the direction fron which usable beam paths are received.
7. A wireless communication apparatus comprising:
a transmitter; and
a beam forming antenna with multiple beam forming elements for transmitting multiple beams over a plurality of beam paths, wherein the beams include a bit or pulse which contains both amplitude information used to determine elevation and phase information used to determine azimuth, and the transmitter initiates a narrow beam scanning process in at least one of azimuth and elevation, and receives feed back information at various times.
8. The apparatus of claim 7 wherein beams in one plane are deflected.
9. The apparatus of claim 7 wherein the beam forming antenna is used to create various beam patterns in an orthogonal plane.
10. The apparatus of claim 7 wherein the tilt and depression of beams formed by the beam forming antenna are variable.
11. The apparatus of claim 7 wherein the beams can be pointed at any desired elevation angle.
12. The apparatus of claim 7 wherein the transmitter is further configured to receive feed back information regarding the direction from which usable beam paths are received.