Title :
Flexible Frame Design for Carrier Aggregation Device in IMT-Advanced System
Author :
Xuejun Liang ; Weimin Wu ; Limin Shui ; Xiaxi Yang
Author_Institution :
Jiangsu Supervision & Inspection Inst. for Product Quality, Nanjing, China
Abstract :
In IMT-Advanced system, carrier aggregation makes use of continuous or non-continuous spectrum which may be scattered in many channels, and then the individual component carrier frame is combined to form a new frame structure named frame aggregation. In this paper, flexible frame aggregation strategies are designed for different carrier aggregation situation in order to reduce the duplex delay existed in time division duplex (TDD) mode. The flexible frame aggregation not only supports backward compatibility and asymmetric business but also improves the efficiency of hybrid automatic repeat request (HARQ) and channel quality information (CQI) feedback process.
Keywords :
3G mobile communication; automatic repeat request; CQI feedback process; HARQ; IMT-advanced system; TDD mode; asymmetric business; backward compatibility; carrier aggregation device; channel quality information feedback process; component carrier frame; continuous spectrum; duplex delay reduction; flexible frame aggregation strategies; flexible frame design; hybrid automatic repeat request; noncontinuous spectrum; time division duplex mode; Delay; Downlink; Mobile communication; Synchronization; Time-frequency analysis; Uplink; Wireless communication;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478523
