System and method for two-way relaying with beamforming
AssigneeFuturewei Technologies, Inc.
InventorsAli Yazdan Panah, Philippe Sartori
Life of this patent
Estimating the term…
Abstract
A system and method for two-way relaying with beamforming are provided. A method for relay operations includes estimating communications channels between a relay and communications devices coupled to the relay, storing data contained in the transmissions, storing data contained in the transmissions, precoding a transmission including a subset of the stored data with a precoding matrix, and transmitting the precoded transmission. The estimating is based on transmissions made by the communications devices in the subset of communications devices, and the precoding matrix is based on estimates of the communications channels.
Claims22
A method comprising:
- transmitting, by a relay, transmission parameters to first communications devices coupled to the relay;
- receiving, by the relay, precoding vectors from one or more of the first communications devices;
- transmitting, by the relay to at least one of the first communications devices, a precoding matrix based on the precoding vectors;
- and
- transmitting, by the relay, a transmission signal to at least a second communications device, the signal including a combination of at least a a stored portion of received transmissions of the first communications devices, the transmission signal being precoded with the precoding matrix.
A relay comprising:
- a processor;
- and
- a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
- transmit transmission parameters to first communications devices coupled to the relay;
- receive precoding vectors from one or more of the first communications devices;
- transmit, to at least one of the first communications devices, a precoding matrix based on the precoding vectors;
- and
- transmit, by the relay, a transmission signal to at least a second communications device, the signal including a combination of at least a stored portion of received transmissions of the first communications devices, the transmission signal being precoded with the precoding matrix.
A method comprising:
- receiving, by a first communications device, transmission parameters from a relay;
- transmitting, by the first communications device to the relay, a precoding vector based on the transmission parameters;
- transmitting, by the first communications device, a first transmission to the relay, transmitting the first transmission to the relay prompting the relay to store at least a portion of the transmission, to precode the stored portion of the first transmission using the precoding matrix, and to transmit the resulting precoded signal in a transmissions signal to a second communications device.
A first communications device comprising:
- a processor;
- and
- a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
- receive transmission parameters from a relay;
- transmit, to the relay, a precoding vector based on the transmission parameters;
- transmit a first transmission to the relay, transmitting the first transmission to the relay prompting the relay to store at least a portion of the transmission, to precode the stored portion of the first transmission using the precoding matrix, and to transmit the resulting precoded signal in a transmissions signal to a second communications device.
Dependencies are inferred from the claim text.