Method and system for managing beam alignment in a high frequency communication system

A method for managing beam alignment in a wireless communication system by a base station, the method comprising;

• receiving, from a User Equipment (UE), location coordinates of a first location of the UE;
• receiving a beam realignment request including location coordinates of a second location of the UE;
• calculating a plurality of beam related parameters based on location coordinates of the base station and the location coordinates of the second location of the UE included in the received beam realignment request;
• estimating an optimal transmission beam width based on the calculated plurality of beam related parameters;
• generating a new transmission beam with the optimal transmission beam width;
• and
• transmitting the generated new transmission beam with the optimal transmission beam width to the UE in response to the received beam realignment request.

A user equipment (UE) for managing beam alignment in a communication system, the UE comprising:

• a transceiver;
• and
• at least one processor coupled to the transceiver,
• wherein the at least one processor is configured to:
• receive beam width information and base station location information from a base station,
• calculate a displacement of location of the UE from a first location to a second location of the UE based on location coordinates of the UE,
• measure a change in a signal strength of the UE after the displacement of the location of the UE with respect to a signal strength of the UE at the first location,
• determine whether movement of the UE is towards or away from the base station using at least one of the beam width information, the base station location information, the displacement of location of the UE, and the measured change in the signal strength of the UE,
• determine whether a beam re-alignment is required based on determining whether the movement of the UE is towards or away from the base station,
• transmit a beam realignment request including location coordinates of the second location of the UE to the base station based on determining that the beam re-alignment is required, and
• receive a re-aligned beam width and a new transmission beam from the base station in response to the transmitted beam realignment request.

A base station for managing beam alignment in a wireless communication system, the base station comprising:

• a transceiver;
• and
• at least one processor coupled to the transceiver,
• wherein the at least one processor is configured to:
• receive, from a User Equipment (UE), location coordinates of a first location of the UE,
• receive a beam realignment request location coordinates of a second location of the UE,
• calculate a plurality of beam related parameters based on location coordinates of the base station and the location coordinates of the second location of the UE included in the received beam realignment request,
• estimate an optimal transmission beam width based on the calculated plurality of beam related parameters,
• generate a new transmission beam with the optimal transmission beam width, and
• transmit the generated new transmission beam with the optimal transmission beam width to the UE in response to the received beam realignment request.