Method and apparatus for scheduling beam in mobile communication system of ultrahigh frequency wave band
AssigneeElectronics and Telecommunications Research Institute
InventorsIl Gyu Kim, Jun Hwan Lee, Hee Sang Chung
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Abstract
A method and apparatus for scheduling a beam in a mobile communication system are provided. A terminal receives signals through a plurality of switching beam directions, and receives a plurality of beams that are transmitted while performing beam switching in a transmission time interval (TTI) unit by a base station. The terminal selects a signal having largest intensity among received signals, and transmits an uplink scheduling request signal in a beam direction corresponding to the selected signal.
Claims15
A method of scheduling a beam in a mobile communication system, the method comprising:
- receiving, by a terminal, signals through a plurality of switching beam directions;
- selecting, by the terminal, a signal having largest intensity among the received signals;
- and
- transmitting, by the terminal, an uplink scheduling request signal in a beam direction corresponding to the selected signal, wherein the uplink scheduling request signal comprises a cell identifier and/or a beam identifier of a base station to send an uplink signal,
- wherein the receiving of signals comprises receiving a plurality of beams that are transmitted while performing beam switching in a transmission time interval (TTI) unit by a base station, and
- wherein the cell identifier and/or the beam identifier of the base station is provided to the terminal by a downlink signal from the base station.
A beam scheduling apparatus of a terminal in a mobile communication system, the beam scheduling apparatus comprising:
- an antenna array comprising a plurality of antennas that receive signals through a plurality of switching beam directions;
- transceivers respectively connected to each of the plurality of antennas and that perform radio frequency (RF) processing of a signal received through a corresponding antenna;
- one or more processors that process computer executable program code embodied in non-transitory computer readable storage media, the computer executable program code comprising:
- beam tracking program code that performs beam tracking in the plurality of switching beam directions and selects a signal having largest intensity among signals that are received from each direction and are received from each of the transceivers;
- and
- scheduling request program code that generates an uplink scheduling request signal comprising a cell identifier and/or a beam identifier of a base station to send an uplink signal,
- wherein the uplink scheduling request signal is transmitted through a transceiver and an antenna corresponding to a beam direction of the selected signal,
- wherein the plurality of antennas of the antenna array receives a plurality of beams that are transmitted while performing beam switching in a transmission time interval (TTI) unit by a base station.
A beam scheduling apparatus of a base station in a mobile communication system, the beam scheduling apparatus comprising:
- an antenna array comprising antennas that transmits a plurality of beams according to a plurality of beam patterns and receives signals transmitted from a terminal;
- and
- a signal processor is configured to modulate and demodulate a signal that is transmitted/received through each antenna and detect an uplink scheduling request signal from the modulated signals, wherein the uplink scheduling request signal comprises a cell identifier and/or a beam identifier of the base station,
- wherein a beam corresponding to the cell identifier and/or the beam identifier of the uplink scheduling request signal is allocated to the terminal,
- wherein each antenna of the antenna array transmits a plurality of beams to the terminal while performing beam switching in a transmission time interval (TTI) unit.
Dependencies are inferred from the claim text.