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引言随着电视的数字化以及IPTV业务的逐步普及,电视技术的数字化在带给产业链各方各种便利的同时,也带来了一些挑战,其中之一就是频道切换的时间延长了而且不固定。当前运营商正在设计和规划当中的电视业务包括两
INTRODUCTION With the digitization of television and the gradual popularization of IPTV services, the digitization of television technology has brought various challenges for all parties in the industry chain. At the same time, some challenges have been posed. One of them is that the channel switching time is prolonged and not fixed . Currently, operators are designing and planning television services including two