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US 2021/0083750 A1Published application
Low Latency Beam Search and Dynamic Beamforming
AssigneeApple Inc.
InventorsGalib A. MOHIUDDIN, Johnson O. Sebeni
Life of this patent
Estimating the term…
Abstract
Methods and devices for performing an offline beam search. The methods include receiving a radio frequency signal comprising a reference signal, wherein the radio frequency signal corresponds to a transmitter beam, projecting the radio frequency signal on orthogonal signal subspaces and storing the projected signals and performing a beam search to identify a receiver beam for the transmitter beam using the projected signals, wherein the beam search is performed offline.
Claims20
A method, comprising:
- at a user equipment (UE):
- receiving a radio frequency signal comprising a reference signal, wherein the radio frequency signal corresponds to a transmitter beam;
- projecting the radio frequency signal on orthogonal signal subspaces and storing the projected signals;
- and
- performing a beam search to identify a receiver beam for the transmitter beam using the projected signals, wherein the beam search is performed offline.
2 more elements
A user equipment (UE), comprising:
- a plurality of antennas configured to receive a radio frequency signal comprising a reference signal and corresponding to a transmitter beam;
- a plurality of receive chains, wherein a number of receive chains is less than a number of antennas;
- and
- a baseband processor configured to perform operations comprising:
- receiving the radio frequency signal;
- projecting the radio frequency signal on orthogonal signal subspaces and storing the projected signals;
- and
- performing a beam search to identify a receiver beam for the transmitter beam using the projected signals, wherein the beam search is performed offline.
5 more elements
A baseband processor configured to perform operations comprising:
- receiving a radio frequency signal comprising a reference signal, wherein the radio frequency signal corresponds to a transmitter beam;
- projecting the radio frequency signal on orthogonal signal subspaces and storing the projected signals;
- and
- performing a beam search to identify a receiver beam for the transmitter beam using the projected signals, wherein the beam search is performed offline.
1 more element
Dependencies are inferred from the claim text.