Wireless communication system, wireless base station apparatus, and wireless communication method
OwnerMikio KUWAHARAinventor
Life of this patent
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Abstract
Random beams and FFR are used in combination, frequencies are grouped into a zone associated with the center of a cell and a zone associated with the border of the cell, and the random beams are applied only to the zone associated with the border of the cell. Since the number of resources to be allocated to the random beams decreases, a terminal lying on the border of the cell can reduce overhead. Using the zone associated with the center of the cell, beam scheduling can be freely performed within the cell.
Claims17
A wireless communication system including a plurality of base stations that transmit a plurality of beams with which a space is divided, wherein:
- the base station splits a transmission frequency band into a first frequency band and a second frequency band;
- in the first frequency band, the base station allocates beams to sub-channels or resource blocks, into which the first frequency band is further split, with the beams fixed to any pattern, on the basis of a beam schedule specifying a plurality of predetermined beams in association with each base station, and transmits signals;
- and
- in the second frequency band, the base station allocates the beams to sub-channels or resource blocks, into which the second frequency band is further split, with the beams fixed to any pattern, on the basis of a beam schedule defined in accordance with communication traffic, and transmits signals.
A wireless base station apparatus in a wireless communication system, the wireless base station apparatus which transmits a plurality of beams with which a space is divided, wherein:
- the wireless base station apparatus splits a transmission frequency band into a first frequency band and a second frequency band;
- in the first frequency band, the wireless base station apparatus allocates beams to sub-channels or resource blocks, into which the first frequency band is further split, with the beams fixed to any pattern, on the basis of a beam schedule specifying a plurality of predetermined beams in association with each base station, and transmits signals;
- and
- in the second frequency band, the wireless base station apparatus allocates the beams to sub-channels or resource blocks, into which the second frequency band is further split, with the beams fixed to any pattern, on the basis of a beam schedule defined in accordance with communication traffic, and transmits signals.
A wireless communication method for a wireless communication system including a plurality of base stations that transmit a plurality of beams with which a space is divided, wherein:
- the base station splits a transmission frequency band into a first frequency band and a second frequency band;
- in the first frequency band, the base station allocates beams to sub-channels or resource blocks, into which the first frequency band is further split, with the beams fixed to any pattern, on the basis of a beam schedule specifying a plurality of predetermined beams in association with each base station, and transmits signals;
- and
- in the second frequency band, the base station allocates the beams to sub-channels or resource blocks, into which the second frequency band is further split, with the beams fixed to any pattern, on the basis of a beam schedule defined in accordance with communication traffic, and transmits signals.
Dependencies are inferred from the claim text.