US 9,287,908 B1 · Wireless-channel characterization and equalization

Abstract

Various embodiments are described that relate to signal distortion for delay and attenuation. A transmission antenna can transmit a baseline signal to a reception antenna and then transmit a test signal to the reception antenna. The baseline signal and test signal can be processed to determine undesirable attenuation and delay coefficients. These coefficients can be transmitted back from the reception antenna to the transmission antenna. Based on these coefficients, a determination can be made on how to modify a signal of interest such that the signal of interest arrives from the transmission antenna to the reception antenna absent the undesirable attenuation and delay coefficients. The transmission antenna can transmit the modified signal of interest such that it arrives at the reception antenna absent the undesirable delay and attenuation coefficients.

Claims20

Dependent claims

A system, comprising:

a distortion component configured to distort a signal of interest in accordance with a distortion scheme to form a distorted signal of interest that is not identical to the signal of interest;
and
a distorted signal emission component configured to cause an emission of the distorted signal of interest from a transmission antenna to a reception antenna,
where the distortion scheme compensates for anticipated delay and attenuation produced from travel of the signal of interest over an indirect path from the transmission antenna to the reception antenna,
where the transmission antenna and reception antenna communicate in different languages, and
where the identification component, the distorted signal emission component, or a combination thereof is implemented, at least in part, by way of non-software.

3 more elements

A method, comprising:

collecting, by way of a reception antenna, a test signal transmitted by a transmission antenna that travels by way of a first path;
collecting, by way of the reception antenna, the test signal transmitted by the transmission antenna that travels by way of a second path that is different from the first path;
calculating a first coefficient set for the test signal transmitted by the transmission antenna that travels by way of the first path;
calculating a second coefficient set for the test signal transmitted by the transmission antenna that travels by way of the second path;
and
transmitting, by way of the reception antenna, the first coefficient set and the second coefficient set to the transmission antenna;
where the transmission antenna and the reception antenna are two different antennas,
where the first path, the second path, or a combination thereof is an indirect path, and
where a distortion scheme for a signal of interest transmitted from the transmission antenna to the reception antenna is based, at least in part, on the first coefficient set and the second coefficient set.

6 more elements

A system, comprising:

a first transceiver antenna that wirelessly transmits a test signal;
a second transceiver antenna that wirelessly receives the test signal;
a computation component that computes a delay coefficient set of the test signal and calculates an attenuation coefficient set of the test signal;
a plan component that determines a modification plan for a signal of interest based, at least in part, on the delay coefficient set of the test signal and the attenuation coefficient set of the test signal,
where the plan component is associated with the first transceiver antenna,
where the computation component is associated with the second transceiver antenna;
where the second transceiver antenna transmits the delay coefficient set and the attenuation coefficient set to the first transceiver antenna, and
where the first transceiver antenna receives the delay coefficient set and the attenuation coefficient set.

5 more elements

Dependencies are inferred from the claim text.

Wireless-channel characterization and equalization

Life of this patent

Wireless-channel characterization and equalization

Life of this patent

Abstract

Claims20