Invention Grant
- Patent Title: Base station, terminal and wireless communication system
- Patent Title (中): 基站，终端和无线通信系统
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Application No.: US12850657Application Date: 2010-08-05
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Publication No.: US08477682B2Publication Date: 2013-07-02
- Inventor: Keisuke Takeuchi , Rintaro Katayama , Tomonori Yamamoto , Koki Uwano
- Applicant: Keisuke Takeuchi , Rintaro Katayama , Tomonori Yamamoto , Koki Uwano
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, PC
- Priority: JP2009-211617 20090914
- Main IPC: H04J3/08
- IPC: H04J3/08 ; H04J3/16
Abstract:
Conventionally, different HARQ processes 801 and 802 (subframes T1 and T2) transmit data packets B and D, respectively. One data packet corresponds to one process and is retransmitted as necessary one by one on a process basis, degrading the usage efficiency of frequency and time resources. To solve this problem, downlink data packets B and D, when needed to be retransmitted, are spatially multiplexed in the different HARQ processes 801 and 802. The data packets are simultaneously retransmitted to the same terminal as process 805 (subframe T3).
Public/Granted literature
- US20110064061A1 BASE STATION, TERMINAL AND WIRELESS COMMUNICATION SYSTEM Public/Granted day:2011-03-17
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