Wireless communication method, base station, and receiving terminal
First Claim
1. A wireless communication method for transmitting broadcast control channel information having a plurality of blocks to a receiving terminal existing in a coverage area of a first directional antenna of a base station by rotation of a beam transmitted from the first directional antenna, the wireless communication method comprising the steps of:
- calculating a transmission block number-related condition necessary for enabling the receiving terminal to receive all the blocks of the broadcast control channel information, based on the total number of the blocks of the broadcast control channel information and a transmission block number, the transmission block number indicating the number of blocks of the broadcast control channel information which are transmitted by the first directional antenna during a reception period, the reception period indicating an interval between the time points when the receiving terminal receives the broadcast control channel information;
calculating a beam rotation angular velocity-related condition based on the transmission block number-related condition, a block unit time, and a coverage angle, the block unit time indicating a time period needed by the first directional antenna to transmit one block of the broadcast control channel information, the coverage angle indicating an angle between two boundary lines of the coverage area; and
controlling the first directional antenna to rotate the beam at a rotation angular velocity decided based on the beam rotation angular velocity-related condition.
1 Assignment
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Accused Products
Abstract
A wireless communication method includes the steps of: calculating a transmission block number-related condition necessary for enabling a receiving terminal to receive all the blocks of broadcast control channel information based on the total number of the blocks and a transmission block number; calculating a rotation angular velocity-related condition based on the foregoing condition, a block unit time, and a coverage angle; and controlling a first directional antenna to rotate a beam at a rotation angular velocity decided based on the condition relating to the rotation angular velocity of the beam.
6 Citations
7 Claims
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1. A wireless communication method for transmitting broadcast control channel information having a plurality of blocks to a receiving terminal existing in a coverage area of a first directional antenna of a base station by rotation of a beam transmitted from the first directional antenna, the wireless communication method comprising the steps of:
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calculating a transmission block number-related condition necessary for enabling the receiving terminal to receive all the blocks of the broadcast control channel information, based on the total number of the blocks of the broadcast control channel information and a transmission block number, the transmission block number indicating the number of blocks of the broadcast control channel information which are transmitted by the first directional antenna during a reception period, the reception period indicating an interval between the time points when the receiving terminal receives the broadcast control channel information; calculating a beam rotation angular velocity-related condition based on the transmission block number-related condition, a block unit time, and a coverage angle, the block unit time indicating a time period needed by the first directional antenna to transmit one block of the broadcast control channel information, the coverage angle indicating an angle between two boundary lines of the coverage area; and controlling the first directional antenna to rotate the beam at a rotation angular velocity decided based on the beam rotation angular velocity-related condition.
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2. A base station for transmitting broadcast control channel information having a plurality of blocks to a receiving terminal existing in a coverage area of a first directional antenna by rotation of a beam transmitted from the first directional antenna, the base station comprising:
a controller for controlling the first directional antenna to rotate the beam at a rotation angular velocity decided based on a beam rotation angular velocity-related condition in the case where a transmission block number-related condition necessary for enabling the receiving terminal to receive all the blocks of the broadcast control channel information has been calculated based on the total number of the blocks of the broadcast control channel information and a transmission block number, the transmission block number indicating the number of blocks of the broadcast control channel information transmitted by the first directional antenna during a reception period, the reception period indicating an interval between the time points when the receiving terminal receives the broadcast control channel information;
the beam rotation angular velocity-related condition having been calculated based on the transmission block number-related condition, a block unit time, and a coverage angle, the block unit time indicating a time period needed by the first directional antenna to transmit one block of the broadcast control channel information, the coverage angle indicating an angle between two boundary lines of the coverage area.- View Dependent Claims (3, 4, 5)
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6. A base station for transmitting broadcast control channel information having a plurality of blocks to a receiving terminal existing in a coverage area of a first directional antenna by rotation of a beam transmitted from the first directional antenna, the base station comprising:
a controller for controlling the first directional antenna to rotate the beam having a decided beam angle at a decided rotation angular velocity in the case where a transmission block number-related condition necessary for enabling the receiving terminal to receive all the blocks of the broadcast control channel information has been calculated based on the total number of the blocks of the broadcast control channel information and a transmission block number, the transmission block number indicating the number of blocks of the broadcast control channel information transmitted by the first directional antenna during a reception period, the reception period indicating an interval between the time points when the receiving terminal receives the broadcast control channel information;
a beam rotation angular velocity-related condition having been calculated based on the transmission block number-related condition, a block unit time, and a coverage angle, the block unit time indicating a time period needed by the first directional antenna to transmit one block of the broadcast control channel information, the coverage angle indicating an angle between two boundary lines of the coverage area;
the beam angle and the rotation angular velocity having been decided based on the beam rotation angular velocity-related condition and a condition that the rotation angular velocity of the beam is equal to or less than a maximum rotation angular velocity obtained by dividing a beam angle by the block unit time.
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7. A base station for transmitting broadcast control channel information having a plurality of blocks to a receiving terminal existing in a coverage area of a first directional antenna by rotation of a beam transmitted from the first directional antenna, the base station comprising:
a controller for controlling the first directional antenna to rotate the beam having a decided beam angle in the case where a transmission block number-related condition necessary for enabling the receiving terminal to receive all the blocks of the broadcast control channel information has been calculated based on the total number of the blocks of the broadcast control channel information and a transmission block number, the transmission block number indicating the number of blocks of the broadcast control channel information transmitted by the first directional antenna during a reception period, the reception period indicating an interval between the time points when the receiving terminal receives the broadcast control channel information;
a beam rotation angular velocity-related condition having been calculated based on the transmission block number-related condition, a block unit time, and a coverage angle, the block unit time indicating a time period needed by the first directional antenna to transmit one block of the broadcast control channel information, the coverage angle indicating an angle between two boundary lines of the coverage area;
the beam angle having been decided based on the beam rotation angular velocity-related condition and a condition that the rotation angular velocity of the beam is equal to or less than a maximum rotation angular velocity obtained by dividing a beam angle by the block unit time.
Specification