Shu (Marloon) Wang

Evolving Random Access Channel What Is The Next for Mobile System Design? How Much Feedback Is Enough for MIMO? How to Broadcast Multimedia Contents? Interference Cancellation: A Short Overview Location Based Services for Mobiles From Chair's notes, there are more than 40 work or study items proposed for enhancing LTE Advanced or  both LTE-Advanced and HSPA. They will be completed by September 2012. Further Enhanced Non CA-based ICIC for LTE LTE Carrier Aggregation Enhancements Study on Coordinated Multi-Point Operation for LTE Study on Enhanced Uplink Transmission for LTE Study on further Downlink MIMO enhancements for LTE-Advanced Study on Further Enhancements to LTE TDD for DL-UL Interference Management and Traffic Adaptation Coordinated Multi-Point Operation for LTE Provision of low-cost MTC UEs based on LTE Proposed SI on LTE Coverage Enhancements Improvements to LTE Relay Backhaul Study on LTE Device to Device Discovery and Communication - Radio Aspects N...

One advanced feature of 3GPP LTE-Advanced is carrier aggregation. It is an essential mechanism for LTE Release 10/11 to meet the peak-data rate, 1Gbps, requirement of IMT-Advanced of ITU-R. Beside this, it also helps LTE maintain backward compatibility, support symmetric/asymmetric operation modes and contiguous/non-contiguous aggregations. All these features help enable a variety of network deployment scenarios, such as hot-spot operations and flexible duplex. Historically carrier aggregation is not something brand-new in standards.  On 3GPP2 side, the IS-2000 standard supports a multi-carrier operation, Spreading Rate 3 or 3x. Spreading 3 is used when higher data rates are desired with more bandwidth available. Spreading 3 of multi-carrier operation can make IS-2000 not only is backward compatible with its IS-95 predecessor but also satisfies the requirements set forth by IMT-2000/3G at that time. With adding additional guard band, IS-2000 can...