Patent application number | Description | Published |
20130142513 | Apparatus and Method for Reducing Traffic on a Unified Optical and Coaxial Network - A coaxial line terminal (CLT) comprising an optical port configured to couple to an optical line terminal (OLT) via an optical distribution network (ODN), an electrical port configured to couple to a coaxial network unit (CNU) via an electrical distribution network, and a processor coupled to the optical port and the electrical port, wherein the processor is configured to receive from the OLT a plurality of first frames addressed to the CNU, receive from the OLT a plurality of second frames not addressed to the CNU, forward the first frames to the CNU, and prohibit the second frames from being forwarded to the CNU. | 06-06-2013 |
20130142514 | Apparatus and Method of Identifying a Transit Node in a Unified Optical-Coaxial Network - An optical line terminal (OLT) comprising a processor configured to assign a logical node identifier (LNID) to a coaxial line terminal (CLT), wherein the CLT intermediates between the OLT via an optical portion of a unified optical-coaxial network and a coaxial network unit (CNU) via an electrical network portion of the unified optical-coaxial network, and transmit a plurality of frames to the CLT via the optical portion of the unified optical-coaxial network, wherein the frames have a CNU address as a destination address, and wherein at least some of the frame comprise the LNID. Included is a method implemented at a CNU, the method comprising receiving a first frame comprising a LNID for a CLT, and transmitting a second frame comprising the LNID for the CLT, wherein the CNU is part of an Ethernet Passive Optical Network (EPON) over Coaxial (EPoC) network. | 06-06-2013 |
20130142515 | Apparatus and Method for Registering a Coaxial Network Unit on an Optical Network - A method comprising receiving a coaxial network unit (CNU) registration request from a CNU via a coaxial portion of a network, wherein the registration request is addressed to an optical line terminal (OLT), and forwarding the CNU registration request to the OLT via an optical portion of the network. Included is an OLT comprising a processor configured to receive a registration request including a logical node identifier (LNID) assigned to a coaxial line terminal (CLT) in a payload of the registration request, wherein the CLT intermediates between the OLT via an optical portion of a unified optical-coaxial network and a CNU via an electrical network portion of the unified optical-coaxial network, assign a logical link identifier (LLID) to the CNU, and send the LLID to the CNU via the CLT. | 06-06-2013 |
20140086263 | LOGICAL LINK IDENTIFIER REGISTRATION METHOD, DEVICE, AND SYSTEM - Embodiments of the present invention provide a logical link identifier (LLID) registration method, device, and system. The method includes: receiving, by a coax media converter (CMC), a first registration request sent by at least one coaxial network unit (CNU) that is connected to the CMC, where the first registration request carries the media access control (MAC) address of the CNU; and sending, by the CMC, in a first data window allocated to the CMC by an optical line terminal (OLT), a second registration request to the OLT, where the second registration request carries a first level LLID identifier allocated to the CMC by the OLT and the MAC address of the CNU, and the first data window is used for data exchange between the CMC and the OLT. | 03-27-2014 |
20140133494 | METHOD, APPARATUS, AND SYSTEM FOR MULTIPLE ACCESS - Embodiments of the present invention provide a method, an apparatus, and a system for multiple access. The method includes: receiving, by a network device, a data packet, where the data packet includes identifier information about a terminal; querying, according to the identifier information about the terminal, a correspondence table between identifier information about a terminal and a broadcast channel, and determining a broadcast channel corresponding to the identifier information about the terminal, where the determined broadcast channel is a broadcast channel among a plurality of preset broadcast channels, and the terminal is any terminal in a terminal group corresponding to the determined broadcast channel; and sending, according to the identifier information about the terminal, through the determined broadcast channel, the data packet to the terminal. | 05-15-2014 |
20140365768 | Extending Data Over Cable Service Interface Specification (DOCSIS) Provisioning of Ethernet Passive Optical Network (EPON) (DPoE) to EPON over Coax (EPoC) Multicast Key Management - Disclosed herein are mechanisms to support the management of multicast keys for a multicast group comprising one or more optical line terminals (OLTs), one or more fiber to coax units (FCUs), and a plurality of coax network units (CNUs). The disclosed embodiments may support the management of multicast keys over optical and coaxial networks. In some embodiments, an FCU may facilitate communication of operations administration and maintenance (OAM) messages containing multicast keys from one or more OLTs to one or more CNUs (typically a plurality of CNUs). Some embodiments may employ one multicast key over both the optical network and coaxial network. Other embodiments may employ an optical domain multicast key over the optical network and an electrical domain multicast key over the coaxial network. Embodiments may comprise adding a first CNU to a multicast group as well as adding subsequent CNUs to the multicast group. | 12-11-2014 |
20150195076 | METHOD AND APPARATUS FOR ALLOCATING OFDM SUBCARRIERS FOR NEXT CODEWORD POINTERS OR OTHER SIGNALING MESSAGES - An apparatus for communication. A headend supports a plurality of customer premises equipment (CPEs) in a cable service network. An NCP carrier selector selects at least one orthogonal frequency division multiplex (OFDM) subcarrier taken from a radio frequency (RF) spectrum available for broadcasting signals over the cable service network using a plurality of profiles, wherein each selected OFDM subcarrier comprises a corresponding bit loading for each supported profile that meets or exceeds a minimum number of bits used for delivering next codeword pointer (NCP) messages that is acceptable for each of a plurality of profiles used in the plurality of CPEs for receiving signals over the cable service network. A profile generator generates an NCP profile identifying one or more selected OFDM subcarriers, wherein the NCP profile indicates which OFDM subcarriers within the RF spectrum are usable to carry NCP messages, and an associated bit loading for each selected subcarrier. | 07-09-2015 |