Wireless communication apparatus and wireless communication method
First Claim
1. A wireless communication apparatus dividing a plurality of subcarriers forming a multicarrier signal into a plurality of subchannels and performing adaptive control per subchannel, the wireless communication apparatus comprising:
- a timing setter configured to set different transmission timings for the plurality of subchannels in accordance with a subchannel-specific timing offset which varies between cells; and
a transmitter configured to transmit the multicarrier signal including the plurality of subchannels after the transmission timing setting, whereinthe timing setter, in order to set the different transmission timings from transmission timings set by a wireless communication apparatus in a neighboring cell, sets a timing offset corresponding to at least a first subchannel of the plurality of subchannels to be longer than a timing offset of at least a first corresponding subchannel in the neighboring cell and sets a timing offset corresponding to a second subchannel of the plurality of subchannels which is different from the first subchannel to be shorter than a timing offset of a second corresponding subchannel in the neighboring cell.
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Accused Products
Abstract
The circuit scale of a wireless communication apparatus at the data receiving end in a wireless communication performing an adaptive control for each of subcarriers or subchannels can be reduced. In the present apparatus, frame forming parts (103-1 to 103-m) each multiplex a pilot, control information and transport data to form a frame for a respective one of subchannels (1 to m). A subcarrier assigning part (104) assigns subcarriers designated from an adaptive control part (114) to the respective frames formed by the frame forming parts (103-1 to 103-m). A timing control part (105) establishes mutually different frame timing offsets to the respective frames received from the subcarrier assigning part (104).
16 Citations
6 Claims
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1. A wireless communication apparatus dividing a plurality of subcarriers forming a multicarrier signal into a plurality of subchannels and performing adaptive control per subchannel, the wireless communication apparatus comprising:
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a timing setter configured to set different transmission timings for the plurality of subchannels in accordance with a subchannel-specific timing offset which varies between cells; and a transmitter configured to transmit the multicarrier signal including the plurality of subchannels after the transmission timing setting, wherein the timing setter, in order to set the different transmission timings from transmission timings set by a wireless communication apparatus in a neighboring cell, sets a timing offset corresponding to at least a first subchannel of the plurality of subchannels to be longer than a timing offset of at least a first corresponding subchannel in the neighboring cell and sets a timing offset corresponding to a second subchannel of the plurality of subchannels which is different from the first subchannel to be shorter than a timing offset of a second corresponding subchannel in the neighboring cell. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless communication method of dividing a plurality of subcarriers forming a multicarrier signal into a plurality of subchannels and performing adaptive control per subchannel, the method comprising:
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setting different transmission timings for the plurality of subchannels in accordance with a subchannel-specific timing offset which varies between cells; and transmitting the multicarrier signal including the plurality of subchannels after the transmission timing setting, wherein the operation of setting different transmission timings comprises, in order to set the different transmission timings from transmission timings set by a wireless communication apparatus in a neighboring cell, setting a timing offset corresponding to at least a first subchannel of the plurality of subchannels to be longer than a timing offset of at least a first corresponding subchannel in the neighboring cell and setting a timing offset corresponding to a second subchannel of the plurality of subchannels which is different from the first subchannel to be shorter than a timing offset of a second corresponding subchannel in the neighboring cell.
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Specification