Invention Grant
US08638845B2 Channel state information compressing apparatus and method, channel state information expanding apparatus and method, computer programs, receiver, and transmitter
有权
信道状态信息压缩装置和方法，信道状态信息扩展装置和方法，计算机程序，接收机和发射机
- Patent Title: Channel state information compressing apparatus and method, channel state information expanding apparatus and method, computer programs, receiver, and transmitter
- Patent Title (中): 信道状态信息压缩装置和方法，信道状态信息扩展装置和方法，计算机程序，接收机和发射机
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Application No.: US12948323Application Date: 2010-11-17
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Publication No.: US08638845B2Publication Date: 2014-01-28
- Inventor: Yasuyuki Hatakawa , Tadayuki Fukuhara , Riichirou Nagareda
- Applicant: Yasuyuki Hatakawa , Tadayuki Fukuhara , Riichirou Nagareda
- Applicant Address: JP Tokyo
- Assignee: KDDI Corporation
- Current Assignee: KDDI Corporation
- Current Assignee Address: JP Tokyo
- Agency: Morgan, Lewis & Bockius LLP
- Priority: JP2009-278481 20091208
- Main IPC: H04B1/66
- IPC: H04B1/66
Abstract:
A channel state information compressing apparatus includes a time-to-frequency region converter that converts a region for channel state information which indicates a state of each communication channel from a time region to a frequency region; and an adaptive selector that selects each frequency component to be included in compressed data based on electric power of the frequency component from among frequency region data obtained by the time-to-frequency region converter. The channel state information compressing apparatus outputs the compressed data consisting of each selected frequency component, and information for identifying each frequency component which forms the compressed data.
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