发明名称 SYNCHRONIZED MULTI-CHANNEL ACCESS SYSTEM
摘要 Systems and methods are provided for synchronizing multiple channels in an access network, where the multiple channels are neighboring channels such that a guard band between them or use of a diplexer to prevent inter-channel interference is not required. Synchronization is achieved by defining channel MAP (media access plan) cycle structures such that all channels work in the same direction (upstream US or downstream DS) at any given time. Moreover, the network controller of channel may send out a beacon to allow new nodes to join. A long MAP cycle (402) may be followed by three consecutive regular MAP cycles (404, 406), and (408). These MAP cycles are repeated between beacon transmissions. Synchronization allows multiple channels to be configured contiguous (without a guard band between neighbouring channels) and without utilizing diplexers. A plurality of customer premises equipment may operate on each of the communications channels.
申请公布号 US2016254841(A1) 申请公布日期 2016.09.01
申请号 US201414774845 申请日期 2014.03.11
申请人 ENTROPIC COMMUNICATIONS, LLC 发明人 Wu Zong
分类号 H04B3/04;H04L12/863;H04L12/707;H04L12/803 主分类号 H04B3/04
代理机构 代理人
主权项 1. A synchronized multi-channel access headend platform, comprising: a host processor; and a plurality of network controllers, where each of the plurality of network controllers is associated with a communications channel, wherein the host processor is operable to synchronize upstream and downstream operation of each of the communications channels, the communications channels occupying neighboring non-guard band separated frequency bands, by at least one of reading and writing control messages from or to the plurality of network controllers through at least one of an Ethernet switch operatively connected to the host processor via an Ethernet interface and a Media Independent Interface Management Interface (MMI).
地址 Carlsbad CA US