LTE-A中的调度.pptVIP

* * Beijing Jiaotong University A Multi-user MIMO Resource Scheduling Scheme for Carrier Aggregation Scenario 2012/3/28 Contents Introduction System model and background The multi-user MIMO resource scheduling scheme for carrier aggregation scenario Simulation results and analysis Conclusion Introduction 1. In order to support wider transmission bandwidths e.g. up to 100MHz, the LTE-Advanced system introduces the carrier aggregation technology. 2. Different UEs have different sets of aggregated carriers. 3. New problems in resource scheduling procedure. Proportional fair (PF) scheduling scheme. 4. Propose a multi-user MIMO Resource Scheduling Scheme for Carrier Aggregation scenario (RSM-CA). Introduction 1. In order to support wider transmission bandwidths e.g. up to 100MHz, the LTE-Advanced system introduces the carrier aggregation technology. 2. Different UEs have different sets of aggregated carriers. 3. New problems in resource scheduling procedure. Proportional fair (PF) scheduling scheme. 4. Propose a multi-user MIMO Resource Scheduling Scheme for Carrier Aggregation scenario (RSM-CA). System model and background Key words: eNB CC, UE CC, Active CC, Deactive CC, PCC, SCC， SU , GU. The process of resource scheduling procedure: Step 1: UE has transmission needs and informs eNB. Step 2: eNB feedbacks eNB CC. Step 3: UE selects UE CC according to its own needs and aggregation ability and feedbacks its UE CC and CQI (channel quality indicator) to eNB. Step 4: eNB conducts resource scheduling scheme to allocate resource to UEs. Step 5: UE uses the allocated resource to transmit/receive data. System model and background Five steps in RSM-CA: 1.scheduling RB, 2.getting SU, 3.getting GU, 4.deciding the transmission mode, 5.updating priority. The multi-user MIMO resource scheduling scheme for carrier aggregation scenario 1.scheduling RB All the RBs of eNB CC take turns to be allocated in the first step. The multi-user MIMO resource schedul