摘要:
A method for mapping a service flow to a service transmission channel includes: configuring determined configuration parameters for a message characteristic into an Optical Network Terminal (ONT); the ONT ensures that the received service flow matches the configured message characteristic; mapping the service flow to a specified service transmission channel. A system and an ONT for mapping the service flow to the service transmission channel are also provided, and the system sets a general service flow mapping module in the ONT. Service flows may be mapped to different service transmission channels based on any predetermined message characteristic by the method, system, and ONT of this invention and it meets the demand of the subdivision service QoS.
摘要:
A method and a system for establishing a digital subscriber connection between a central site (1) and a subscriber's transmission device (5). The system comprises an optical fiber (2) between the central site and an intermediate equipment (3) on a signal path between the central site and the subscriber's transmission device, and a metallic pair cable (4) between the intermediate equipment and the subscriber's transmission device. Digital signal processing parts (12a, 12b, 14a, 14b) of a DSL-modem are distributed between the central site and the intermediate equipment. Analog signal processing parts (7) of the DSL-modem are located in the intermediate equipment. The distribution of the digital signal processing parts is selected such that the optical-fiber-carried bit rate is minimal, but on the other hand, the digital signal processing in the equipment is relatively simple.
摘要:
An access network includes a test system controller that provides a test request in Signaling Network Management Protocol (SNMP) messages to an element management system. A network gateway, in conjunction with the element management system, provides test commands to a customer gateway over a Local loop Emulation Service Embedded Operations Channel (LES-EOC). The customer gateway performs a subscriber loop test on derived subscriber lines connected therewith. Results of the subscriber loop test are provided over the LES-EOC to the gateway. The network gateway sends the results to the test system controller through the element management system in SNMP messages.
摘要:
An improved addressing scheme is disclosed for use in access networks. According to a specific embodiment, upstream and/or downstream channels may be grouped together based upon logical associations rather than physical associations. Further, according to at least one embodiment of the present invention, various techniques are described for routing selected channel MAP messages to appropriate channels and/or nodes within the access network.
摘要:
Method and apparatus for distributing digital stream data over a local distribution facility to at least one user terminal is described. In one example, a transceiver is configured to receive a signal from a transport system and recover a packet stream from the signal. Packet processing circuitry is configured to extract digital stream data from the packet stream. A modulator is configured to modulate the digital stream data onto at least one carrier for transmission over the local distribution facility to at least one user terminal.
摘要:
One embodiment of the present invention provides a system that facilitates registration of remote nodes in an Ethernet passive optical network (EPON). The system includes a central node and at least one remote node, wherein a number of virtual remote nodes are coupled to a common physical remote node and transmit upstream data through a common transmitter within the common physical remote node. During an initial discovery cycle, the system receives a solicitation message from the central node at a remote node, wherein the solicitation message assigns a discovery slot in which an unregistered remote node may transmit a response message to the central node for registration. The system then transmits a response message from an unregistered remote node to register within the assigned discovery slot. If multiple virtual remote nodes coupled to the common physical remote node seek registration concurrently, the system controls the transmission of response messages from these virtual remote nodes to the central node so as to avoid collisions between response messages from different remote nodes.
摘要:
A high speed, fiber optics communications network provides network connectivity throughout a multi-tenant building or facility and is integrated with other building systems. Network management and maintenance are automated and centralized in a network manager. Network bandwidth needs of the building are aggregated and delivered to building tenants as needed. Wireless LAN access points are coupled to the network to provide wireless network access throughout the building.
摘要:
A fixed wireless access network provides for high-frequency data links between aggregation nodes and endpoint nodes. The system further provides for lower frequency wireless data links, which have carrier frequencies less than high-frequency wireless data links. These lower frequency links provide for auxiliary communications between the aggregation nodes and one or more endpoint nodes. During normal operation, the nodes exchange packet data via the high-frequency data links. However, when impairment of the high-frequency data links is detected, the nodes direct the packet data over the low-frequency data links instead until the high-frequency data links are no longer impaired.
摘要:
Provided is a communication control method of controlling communication between a first electrical switch and a second electrical switch each connected via an optical network and via an electrical network and each responsible for one or more devices to enable a data transfer with high reliability and low latency. The communication control method includes processes of (A) determining the presence or absence of blocking in relation to a first setup request of an optical circuit from the first electrical switch to the second electrical switch and (B) performing, if the blocking is present, at least one process of a first process of transmitting, from the first electrical switch, a second setup request of the optical circuit from the first electrical switch to the second electrical switch and a second process of transmitting a packet or a packet flow related to the first setup request from the first electrical switch via the electrical network.
摘要:
A broadband access system, comprising a broadband access hub device (hub device) and broadband access premise devices (premise devices) wirelessly coupled the hub device to provide broadband services to multiple user equipment (UEs), is described. The hub device may access broadband services on a fiber optic broadband network and wirelessly provide access to the broadband services to the premise devices. The premise device may wirelessly communicate with the hub device and communicate with user equipment (UEs) for providing access to the broadband services through the hub device. The premise device may be attached to an electric utility meter, and a power interface module of the premise device may supply electrical power to the premise device from the electric utility meter.