Invention Grant
US08194623B2 Evolving-type user resource structure/channelization with enhanced diversity for OFDMA based time-varying channels
有权
用于基于OFDMA的时变频道的增强分集的演进型用户资源结构/信道化
- Patent Title: Evolving-type user resource structure/channelization with enhanced diversity for OFDMA based time-varying channels
- Patent Title (中): 用于基于OFDMA的时变频道的增强分集的演进型用户资源结构/信道化
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Application No.: US12455268Application Date: 2009-05-28
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Publication No.: US08194623B2Publication Date: 2012-06-05
- Inventor: Chia-Chin Chong , Hlaing Minn , Fujio Watanabe
- Applicant: Chia-Chin Chong , Hlaing Minn , Fujio Watanabe
- Applicant Address: JP Tokyo
- Assignee: NTT DoCoMo, Inc.
- Current Assignee: NTT DoCoMo, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Haynes & Boone, LLP.
- Main IPC: H04W74/00
- IPC: H04W74/00

Abstract:
An evolving-type resource structure supports high data rate services at high mobile speeds. The evolving-type resource structure is an efficient diversity-exploiting user resource structure for fast time-varying frequency-selective fading channel environments. In one example, an evolving-type resource structure takes advantages of both band-type and interleaved-type structures which exploit both multiuser diversity and frequency diversity in fast time-varying channels. The evolving-type resource structure is applicable to centralized, semi-distributed and distributed access schemes and may be used in both downlink (DL) and uplink (UL) transmissions in a cellular system.
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