发明授权
- 专利标题: Wireless transmitter
- 专利标题(中): 无线发射机
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申请号: US13162437申请日: 2011-06-16
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公开(公告)号: US08170512B2公开(公告)日: 2012-05-01
- 发明人: Kimihiko Imamura
- 申请人: Kimihiko Imamura
- 申请人地址: JP Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JP Osaka
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2005-316549 20051031
- 主分类号: H04Q7/32
- IPC分类号: H04Q7/32
摘要:
A wireless transmitter that includes a phase rotating unit which adds phase rotation to signals which are respectively input to antennas and adds first phase rotation for controlling the maximum delay time between the antennas and a second phase rotation for controlling the phases of arbitrary antennas among the antennas, wherein scheduling of users is performed on a per-chunk basis where a region defined in a frequency domain and in a time domain is divided into chunks in the frequency domain and in the time domain, and in the case in which the frequency bandwidth of the chunk is Fc, the phase rotating unit adds the first phase rotation so that the maximum delay time between the antennas is set to either a predetermined first value which is smaller than 1/Fc or a predetermined second value which is larger than 1/Fc.
公开/授权文献
- US20110250855A1 WIRELESS TRANSMITTER 公开/授权日:2011-10-13
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