公开(公告)号：EP2159926A1

公开(公告)日：2010-03-03

申请号：EP08290801.3

申请日：2008-08-26

申请人： AGENCE SPATIALE EUROPEENNE

发明人： del Rio Herrero, Oscar ,  De Gaudenzi, Riccardo

IPC分类号： H04B1/707 ,  H04B7/185

CPC分类号： H04B1/71072 ,  H04B2201/709709

摘要： A method of receiving data packets asynchronously transmitted by a plurality of user terminals using a spread-spectrum medium access protocol, comprising a step of cancelling interferences between colliding packets according to an innovative "sliding window" processing algorithm.
A gateway receiver adapted for carrying out interference cancellation according to said algorithm.
A method for controlling asynchronous packet transmission from a user terminal, comprising estimating a parameter indicative of the quality of information transmission through a communication channel; and inhibiting or allowing data transmission depending on a comparison between said estimated parameter and an adaptively varying threshold.
A user terminal comprising transmission control means adapted for carrying out such a method.
A communication system comprising a plurality of mobile user terminal communicating with a gateway through a satellite channel using an asynchronous spread-spectrum medium access protocol without closed-loop power control, wherein said user terminals and said gateway are of the kind described above.

摘要翻译： 一种使用扩频介质访问协议接收由多个用户终端异步发送的数据分组的方法，包括根据创新的“滑动窗口”处理算法消除冲突分组之间的干扰的步骤。 一种适于根据所述算法执行干扰消除的网关接收机。 一种用于从用户终端控制异步分组传输的方法，包括：估计通过通信信道指示信息传输质量的参数; 以及根据所述估计参数与自适应变化阈值之间的比较来禁止或允许数据传输。 一种用户终端，包括适于执行这种方法的传输控制装置。 一种通信系统，包括多个移动用户终端，通过使用不具有闭环功率控制的异步扩展频谱媒体接入协议通过卫星信道与网关进行通信，其中所述用户终端和所述网关是上述种类。