Apparatus and methods for beamforming tracking
AssigneeHuawei Technologies Co., Ltd.
InventorsMING JIAN, TAIWEN TANG, WENYAO ZHAI
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Abstract
Signals are received from antenna elements in an antenna array, and respective phase shifts are applied to the received signals. The respective phase shifts are relative to a channel phase shift associated with each antenna element, and correspond to side angles from a current antenna beam direction of the antenna array. Control signals based on the phase shifted signals are generated to control the channel phase shifts, to provide beamforming tracking.
Claims29
An apparatus comprising:
- a plurality of variable phase shifters to receive signals from respective antenna elements in an antenna array, each of the variable phase shifters comprising a pair of phase shift elements to apply respective phase shifts relative to a channel phase shift associated with the antenna element from which the variable phase shifter receives signals, the respective phase shifts corresponding to side angles from a current antenna beam direction of the antenna array;
- and
- a beamforming tracking controller, coupled to receive phase shifted signals from the variable phase shifters, to generate control signals based on the phase shifted signals to control the channel phase shifts.
Communication equipment comprising:
- an antenna array comprising a plurality of antenna elements;
- a plurality of variable phase shifters to receive signals from respective antenna elements in an antenna array, each of the variable phase shifters comprising a pair of phase shift elements to apply respective phase shifts relative to a channel phase shift associated with the antenna element from which the variable phase shifter receives signals, the respective phase shifts corresponding to side angles from a current antenna beam direction of the antenna array;
- and
- a beamforming tracking controller, coupled to receive phase shifted signals from the variable phase shifters, to generate control signals based on the phase shifted signals to control the channel phase shifts.
A method comprising:
- receiving signals from antenna elements in an antenna array,
- applying, to the signals received from each of the antenna elements, respective phase shifts relative to a channel phase shift associated with the antenna element from which the signals are received, the respective phase shifts corresponding to side angles from a current antenna beam direction of the antenna array;
- and
- generating control signals based on phase shifted signals to control the channel phase shifts associated with the antenna elements.
A non-transitory processor-readable medium storing instructions which, when executed by one or more processors, cause the one or more processors to perform a method comprising:
- receiving phase shifted signals, the phase shifted signals comprising signals received at antenna elements in an antenna array and phase shifted by respective phase shifts relative to a channel phase shift associated with the antenna element at which the signals are received, the respective phase shifts corresponding to side angles from a current antenna beam direction of the antenna array;
- and
- generating control signals based on phase shifted signals to control the channel phase shifts associated with the antenna elements.
Dependencies are inferred from the claim text.