- 专利标题： SIGNALING METHODS FOR UE-SPECIFIC DYNAMIC DOWNLINK SCHEDULER IN OFDMA SYSTEMS
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申请号： EP12779587.0申请日： 2012-05-04
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公开(公告)号： EP2599356B1公开(公告)日： 2018-08-08
- 发明人: LIAO, Pei-Kai , LIN, Chih-Yuan , CHEN, Yih-Shen
- 申请人： MediaTek Inc.
- 申请人地址： No. 1, Dusing Rd. 1st Science-Based Industrial Park Hsin-Chu 300, Taiwan TW
- 专利权人： MediaTek Inc.
- 当前专利权人： MediaTek Inc.
- 当前专利权人地址： No. 1, Dusing Rd. 1st Science-Based Industrial Park Hsin-Chu 300, Taiwan TW
- 代理机构： Habermann, Hruschka & Schnabel
- 优先权： US201161482822P 20110505; US201213463113 20120503
- 国际公布： WO2012149908 20121108
- 主分类号： H04W72/04
- IPC分类号： H04W72/04 ; H04L5/00 ; H04W28/06
摘要：
Signaling methods for UE-specific downlink control channels in OFDMA systems are provided. In a first method, a dynamic downlink signaling in cell-specific radio resources is used to signal UE-specific downlink control channel in UE-specific radio resources. In LTE, a specific DCI format in PDCCH is used to dynamically signal the UE-specific downlink control channel X-PDCCH that resides in legacy PDSCH region. In a second method, a semi-static higher-layer signaling is used to signal UE-specific downlink control channel in UE-specific radio resources. In LTE, RRC signaling is used to semi-statically signal the UE-specific downlink control channel X-PDCCH that resides in legacy PDSCH region. By using UE-specific downlink control channels, significant control overhead reduction can be achieved.
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