1. 來源： Handover Algorithm with Joint Processing in LTE-Advanced Cheng-Chung Lin, Ku mbesan Sandrasegaran and Scott Reeves Faculty of Engineering and Information Techno logy University of Technology Sydney, Australia [Cheng-Chung.Lin, kumbes]@eng.uts.ed u.au Scott.N.Reeves@student.uts.edu.au 報告人：簡廷瑋 授課老師：陳偉業

2. Abstract  LTE is a purely packet-switched radio access technology and improves the legacy systems by supporting higher data rates with low latency  handover algorithm with JP in LTE-Advanced is able to improve system throughput and minimize packet loss ratio (PLR) effectively. 1

3. LTE system architecture 參考來源： http://csie.npu.edu.tw/%E5%AD%B8%E8%A1%93%E7%A0%94%E7%A9%B6/12/Session/B7/%E5%9F%BA%E6%96%BC%E4 %BD%BF%E7%94%A8%E8%80%85%E7%A7%BB%E5%8B%95%E6%80%A7%E4%B9%8B%20LTE%20%E7%B3%BB%E7%B5 %B1%E7%9A%84%E6%8F%9B%E6%89%8B%E6%8A%80%E8%A1%93.pdf 2

4. LTE system architecture MME manages UE mobility, identity, and security parameters S-GW is a node that terminates the interface towards E-UTRAN eNodeB(eNB) 3

5. LTE handover algorithm (1)RSRP T > RSRP S + HOM reference signal received power (RSRP) 4

6. CoMP  (Coordinated Scheduling/Beamforming, CS/CB)  (Joint Processing, JP)  (Joint Transmission, JT)  (Dynamic Cell Selection, DCS) 參考來源 https://www.google.com.tw/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwi1sJL- q_LJAhUHY6YKHeXDB2kQFggcMAA&url=http%3A%2F%2Fwww.teema.org.tw%2Fupload%2Fciaupload%2F1_62160.doc&usg=AFQjC NEF7Queq_CR1qCFkqvEiRjIcUHnuw 5

7. CoMP in LTE-A system 6 CoMP coordinating set (CCS) CoMP transmission points(CTP)

8. Flow chart of handover algorithm with JP in LTE-A  A handover is triggered when the modified condition based on Equation (1) is satisfied for the TTT time duration expressed as following  RSRP T_CTP > RSRP S + HOM 7

9. Flow chart of handover algorithm with JP in LTE-A 8

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14. CONCLUSIONS  a handover algorithm with JP in LTE-A is implemented and simulated  Handover algorithm with JP in LTE-A is able to improve system throughput and minimize PLR(packet loss ratio) effectively  system capacity overload and saturated system throughput issues within a highly congested network 13