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    • 5. 发明申请
    • BROADBAND LOCAL AREA FULL-SERVICE BACKBONE NETWORK
    • 宽带本地区域全网服务网络
    • WO2006122267A1
    • 2006-11-16
    • PCT/US2006/018298
    • 2006-05-10
    • ENG, John Wai, Tsang
    • ENG, John Wai, Tsang
    • H04L12/28
    • H04L12/2801H04L12/2803H04L12/2834H04L12/2838H04L2012/285H04N7/10
    • A point-to-multipoint broadband local area network (BLAN) system comprising a local area modem controller (LAMC and plurality of local area modems (LAMs) is capable of voice, video and data communications. The medium is capable of reliably supporting multiple downstream and upstream channels to meet the need of high-capacity and QoS of digital entertainment. Media-access-control (MAC) functions in the LAMC and LAMs coordinate packet stream transmissions. The shared medium can be a tree-branch coaxial cable; the LAMs can be legacy DOCSIS or EuroDOCSIS cable modems or enhanced cable modems with multiple channels; the MAC can be a DOCSIS MAC or an enhanced multi-channel full-service MAC (fsMAC). The physical layer of each channel can be that of DOCSIS, wideband, or other technologies. Residential gateway and wide-area broadband modem functions can also be incorporated into the LAMC.
    • 包括本地调制解调器控制器(LAMC和多个局域调制解调器(LAM))的点对多点宽带局域网(BLAN)系统能够进行语音,视频和数据通信,该媒体能够可靠地支持多个下行 和上行信道,以满足数字娱乐的高容量和QoS需求,LAMC和LAM中的媒体访问控制(MAC)功能协调数据包流传输,共享介质可以是树枝同轴电缆; LAM 可以是具有多个信道的传统DOCSIS或EuroDOCSIS电缆调制解调器或增强型电缆调制解调器; MAC可以是DOCSIS MAC或增强型多通道全业务MAC(fsMAC),每个信道的物理层可以是DOCSIS,宽带 或其他技术,住宅网关和广域宽带调制解调器功能也可以纳入LAMC。
    • 6. 发明申请
    • FULL-SERVICE BROADBAND CABLE MODEM SYSTEM
    • 全服务宽带电缆调制解调器系统
    • WO2003090467A1
    • 2003-10-30
    • PCT/US2003/011711
    • 2003-04-15
    • ENG, John, Wai, Tsang
    • ENG, John, Wai, Tsang
    • H04N7/173
    • H04N7/17309H04J1/00H04J3/0638H04J3/1682H04N21/6118H04N21/6168H04W28/06H04W74/00
    • A method and system is disclosed for enabling full-service communications between a full-service cable modem termination system (fsCMTS) and a plurality of full-service cable modems (fsCM's) for a conventional two-way hybrid fiber-coax (HFC) cable television network. Full-service communications include data, voice and video. Video includes broadcast quality MPEG-2 transport streams and Internet protocol media streams. A multi-channel full-service media-access-control (fsMAC) coordinates the access to the shared upstream and downstream channels. At lease two downstream channels and at least two upstream channels are provided. Several MAC management messages are defined to enable multi-channel full-service MAC domain to be defined and to enable packet-by-packet true seamless channel change. Using the novel techniques described in this invention, multiple upstream channels can be used in various ways to best optimize the use of the spectrum for accommodating various quality-of-service needs of different type of services.
    • 公开了一种用于在常规双向混合光纤同轴(HFC)电缆的全业务电缆调制解调器终端系统(fsCMTS)和多个全业务电缆调制解调器(fsCM)之间实现全业务通信的方法和系统 电视网络。 全业务通信包括数据,语音和视频。 视频包括广播质量MPEG-2传输流和互联网协议媒体流。 多通道全业务媒体访问控制(fsMAC)协调对共享上游和下行信道的访问。 至少提供两个下行信道和至少两个上行信道。 定义了几个MAC管理消息,以便定义多通道全业务MAC域,并实现逐分组真实的无缝通道更改。 使用本发明描述的新技术,可以以各种方式使用多个上行信道,以最佳地优化频谱的使用以适应不同类型业务的各种服务质量的需求。