Synchronization control capable of establishing sy
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专利名称：Synchronization control capable of
establishing synchronization without
transmission of distance information
between control and local earth stations
发明人：Aoki, Takahiro,Tejima, Shunichiro
申请号：EP87103639.8
申请日：19870313
公开号：EP0237972A3
公开日：
19891102
专利内容由知识产权出版社提供
专利附图：
摘要：In a TDMA satellite communication network comprising control and local earth
stations communicable with one another through a satellite, a time difference between transmission and reception of a reference burst is measured at the control earth station to detect a time deviation (Tb) from a standard offset time (SO) predetermined for the control earth station. In the control earth station, the time deviation is doubled and added to the standard offset time to provide a reception time instant (t₄) for the local for the local earth station. Thus, the reception time instant is varied and predicted in the control earth station with reference to the time deviation detected in the control earth station. The local earth station determines a transmission time instant (t₂ or t₂ʹ) by delaying a reception timing signal by a predetermined time interval (Ta) (Fig. 3).
申请人：NEC CORPORATION
地址：7-1, Shiba 5-chome Minato-ku Tokyo JP
国籍：JP
代理机构：VOSSIUS & PARTNER
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