CAJ | 학술논문

针对长期演进计划LTE（Long Term Evolution）系统和卫星移动通信系统融合中上行同步存在的问题，提出一种面向LTE的静止轨道GEO（Geosynchronous Orbit）卫星移动通信系统的上行时隙同步方案，并给出与用户传输时延相关的转换时延的计算公式。通过对用户上行时隙数和传输时延差关系的分析，以及对最大等待时延的分析和误码率性能分析，验证了所提出的上行时隙同步方案适用于卫星移动通信系统。
침대장기연진계화LTE（Long Term Evolution）계통화위성이동통신계통융합중상행동보존재적문제，제출일충면향LTE적정지궤도GEO（Geosynchronous Orbit）위성이동통신계통적상행시극동보방안，병급출여용호전수시연상관적전환시연적계산공식。통과대용호상행시극수화전수시연차관계적분석，이급대최대등대시연적분석화오마솔성능분석，험증료소제출적상행시극동보방안괄용우위성이동통신계통。
Aiming at the problem of uplink synchronisation in integration of LTE system and satellite mobile communication system,wepropose an LTE-oriented uplink timeslot synchronisation scheme for GEO satellite mobile communication system,and present the calculationformula of conversion delay with regard to user transmission delay.Through analysing the relation of user uplink timeslot number andtransmission delay difference and the maximum waiting delay and BER (bit error ratio)performance,it is verified that the proposed schemeis suitable for the GEO satellite mobile communication system.