Beam alignment method and related device
AssigneeHuawei Technologies Co., Ltd.
InventorsShipeng Wang, Xihe You, Bao Zhang
Life of this patent
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Abstract
A beam alignment method includes receiving, at a current location by using a plurality of receive beams, a transmit beam from a network device, and determining reference signal received power (RSRP) of each of the plurality of receive beams; selecting an optimal receive beam from the plurality of receive beams based on the RSRP; determining, based on the optimal receive beam, a rotation angle and a rotation direction for a terminal device to align a peak direction beam with the transmit beam; and adjusting a location of the terminal device based on the rotation angle and the rotation direction, and forming an optimal beam pair by using the peak direction beam and the transmit beam at an adjusted location.
Claims20
A beam alignment method, comprising:
- receiving, by a terminal device at a current location by using a plurality of receive beams, a network transmit beam transmitted from a network device;
- determining reference signal received powers (RSRPs) of the plurality of receive beams;
- selecting an optimal receive beam from the plurality of receive beams based on the RSRPs;
- determining, based on the optimal receive beam, a rotation angle and a rotation direction for the terminal device to align a peak direction beam with the network transmit beam;
- adjusting a direction and an angle of the terminal device based on the rotation angle and the rotation direction to obtain an adjusted radiation direction and an adjusted radiation angle of an antenna in the terminal device;
- and
- forming an optimal beam pair using the peak direction beam and the network transmit beam at the adjusted radiation direction and the adjusted radiation angle.
A beam alignment apparatus of a terminal device, comprising:
- a receiver configured to:
- receive, at a current location by using a plurality of receive beams, a network transmit beam transmitted from a network device;
- and
- determine reference signal received powers (RSRPs) of the plurality of receive beams;
- a selector configured to select an optimal receive beam from the plurality of receive beams based on the RSRPs;
- and
- a processor coupled to the receiver and the selector, wherein the processor is configured to:
- determine, based on the optimal receive beam, a rotation angle and a rotation direction for the terminal device to align a peak direction beam with the network transmit beam;
- adjust a direction and an angle of the terminal device based on the rotation angle and the rotation direction to obtain an adjusted radiation direction and an adjusted radiation angle of an antenna in the terminal device;
- and
- form an optimal beam pair using the peak direction beam and the network transmit beam at the adjusted radiation direction and the adjusted radiation angle.
A terminal device comprising:
- an antenna;
- a modem coupled to the antenna and configured to:
- receive, at a current location by using a plurality of receive beams, a network transmit beam transmitted from a network device;
- determine reference signal received powers (RSRPs) of the plurality of receive beams;
- and
- select an optimal receive beam from the plurality of receive beams based on the RSRP;
- and
- a processor coupled to the modem and configured to:
- receive the optimal receive beam from the modem;
- determine a rotation angle and a rotation direction for the terminal device to align a peak direction beam with the network transmit beam;
- adjust a direction and an angle of the terminal device based on the rotation angle and the rotation direction to obtain an adjusted radiation direction and an adjusted radiation angle of the antenna;
- and
- form an optimal beam pair by using the peak direction beam and the network transmit beam at the adjusted radiation direction and the adjusted radiation angle.
Dependencies are inferred from the claim text.