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Class 370/907 - Synchronous Optical network (SONET)


Subclass of Class 370 - Multiplex communications
Definition: Subject matter wherein the network is defined by a standard
No. of patents: 191
Last issue date: 08/12/2008


1          
NumberTitleIssue Date
7411900Fast restoration for virtually-concatenated data traffic
Techniques are disclosed for restoration of virtually-concatenated data traffic in a data transmission network. A virtually-concatenated group is formed comprising: (i) a plurality of primary members each associated with a corresponding data stream, and (ii) at leas...
08/12/2008
7397815Method and apparatus for performing link defragmentation subject to an interface rate constraint
Techniques for defragmenting at least one time division multiplexed link in a communication system, wherein provisioned circuits corresponding to traffic demands are assigned to particular time slots of the link. An optimum layout of free space for the link is compu...
07/08/2008
7394758Method for supporting SDH/SONET APS on Ethernet
An Ethernet MAC APS Control sublayer is provided for supporting SDH/SONET APS standard functionality in Ethernet Networks. In accordance with one embodiment, an Ethernet MAC APS Control sublayer is provided for processing Ethernet MAC APS Control frames. The MAC APS...
07/01/2008
7386008Method and apparatus for converting data packets between a higher bandwidth network and a lower bandwidth network having multiple channels
A method and apparatus for converting packetized data received from a broadband network to a multi-channel payload network having a narrower bandwidth is disclosed. The method includes converting a packet received from the broadband network to a serial stream having...
06/10/2008
7386007Method and apparatus for mapping fast ethernet data interfaces into a single VC-4 virtual container of a STM-1/OC-3 payload transmitted in a radio-link system
Described is a method and apparatus for mapping Fast Ethernet data interfaces (in addition to possible data interfaces of different type) into a single VC-4 Virtual Container of a STM-1/OC-3 payload transmitted to a radio-link system. The method is characterized by ...
06/10/2008
7356052Overhead handling method and system for high order data streams
A method for fast and economic handling of overhead bytes of an incoming high order data stream to form a corresponding outgoing high order data stream, the method comprising a) presenting the incoming high order data stream as a plurality of N component data stream...
04/08/2008
7352780Signaling byte resiliency
A method and system for providing signaling byte resiliency across a telecommunications network. Embodiments of the invention create copies of original signaling bytes and transports the copies in addition to the original signaling bytes. Testing is performed at eac...
04/01/2008
7349351Method for determining a master ring for an optical communications network
A method for determining a master ring for an optical communications network having nodes arranged in a plurality of interconnected ring structures. (A master ring is a ring structure which contains every node in the network exactly once, and which also respects the...
03/25/2008
7346081Traffic handling in a protected synchronous communication network
A method for dynamically adding a new channel to a group of virtually concatenated channels carrying traffic to a network element (NE) of a synchronous network. By this method if a delay associated with the new channel is longer than a delay associated with the grou...
03/18/2008
7327745Packet transmission system and a terminal apparatus
A packet transmission system is disclosed. The system serves between terminal apparatuses that include a supervisory control circuit configured to transmit a supervisory signal in a direction opposite to the transmission direction of a main signal on each of and bot...
02/05/2008
7324548Transceiver system and method supporting variable rates and multiple protocols
Present herein is a multirate transceiver wherein data can be received at a first data rate and transmitted at a second data rate. The transceiver device comprises a first interface for receiving data at one data rate a mapper that can map data from a first rate to ...
01/29/2008
7324524Pseudo synchronous machine
A method and apparatus is disclosed for interfacing an asynchronous network with a synchronous network and in particular for efficiently utilizing available bandwidth of a synchronous network transmit opportunity. In one embodiment asynchronous traffic arrives via a...
01/29/2008
7324563Method and apparatus for transporting a SDH/SONET client signal as a service
SDH/SONET signals are transported as a service including payload and overhead information by mapping associated payload data or information and selected associated overhead data or information of at least one SDH/SONET client signal to be transported into a SDH/SONE...
01/29/2008
7324511Device, method and system for transferring frame
In between network devices interconnected by plural optical channels, logical paths are defined according to upper traffic and also priority of the traffic. The network device includes: a frame forming section for reading user packets out of a buffer section compose...
01/29/2008
7324562Method and apparatus for introducing differential delay between virtually concatenated tributaries
In one embodiment, the invention is an apparatus for testing differential delay correction of network elements using virtual concatenation. The apparatus includes a first PRBS (pseudo-random bit stream) generator dedicated to a first tributary. The apparatus also in...
01/29/2008
7320132Software methods of an optical networking apparatus with multiple multi-protocol optical networking modules
An API is provided to an optical networking apparatus to facilitate uniform access, control or interaction with its multi-protocol optical networking modules (MPONM) by its applications. Each of the MPONM has a number of function blocks having corresponding service ...
01/15/2008
7319662Virtual line switched ring
At least one protection line is shared among SONET rings. Identification and availability information of the shared protection line is distributed among the switches of the SONET rings using K-byte data in the SONET overhead. ...
01/15/2008
7317728System and method for increasing provisionable bandwidth in time-division multiplexed communication links
A system for and method of, increasing provisionable bandwidth in a multiplexed communication link and a network management system incorporating the system or the method. In one embodiment, the system includes: (1) a defragmentation calculator that calculates a defr...
01/08/2008
7305013Handling traffic in a synchronous communication network
A method for enabling communication between synchronous network elements, which is adapted to support dynamic application of various types of changes, such as adding a new channel, to an aligned group of virtually concatenated channels carrying communication traffic...
12/04/2007
7298744Method and apparatus for centralized processing of contiguously and virtually concatenated payloads
A method and apparatus for processing at least two types of payloads received at varying intervals in a communications network using a single processing path is provided. The two types of payloads may include virtually and contiguously concatenated payloads accordin...
11/20/2007
7292607Method and circuit for processing data in communication networks
A method and circuitry for detecting a pattern in received data such as the A1A2 boundary in a SONET frame after deserialization. Two consecutive pluralities of bytes of incoming data are stored and compared with the A1 and A2 values (or bit shifted versions of the ...
11/06/2007
7292608Method and apparatus for transferring synchronous optical network/synchronous digital hierarchy(SONET/SDH) frames on parallel transmission links
The present invention relates to methods and systems for transferring SONET/SDH frames between nodes by mapping the SONET/SDH frames onto individual channels of data and transferring the SONET/SDH frames over parallel transmission links. More particularly, the metho...
11/06/2007
7289507Method and network element for a safety transport of ethernet frames over a transport SDH/SONET network
Disclosed is a method and network element for providing a safe transport of Ethernet frames over a transport SDH/SONET network. The method is characterized by comprising: at the sending point (AP#0), receiving Ethernet frames to be transported through an Acce...
10/30/2007
7286572Highly integrated, high-speed, low-power serdes and systems
An integrated circuit includes a serdes framer interface (SFI) circuit for receiving a first set of data channels and a reference channel, generating first logic levels for the first set of data channels, and realigning the first set of data channels relative to a r...
10/23/2007
7260099Processing of arbitrarily formatted client signals to achieve compatibility with existing transport networks
A client signal received at an ingress interface is adapted to a higher-rate transport signal. Clock frequency acceleration is achieved by an M/N-multiplying PLL where the magnitude of M and N can be restricted without causing the rate of the resulting transport sig...
08/21/2007
7236490Backplane interface adapter
A backplane interface adapter for a high-performance network switch. The backplane interface adapter receives narrow input cells carrying packets of data and outputs wide striped cells to a switching fabric. One traffic processing path through the backplane interfac...
06/26/2007
7200157Detection and compensation of ingressing frame offset discontinuities for tandem connection trails
A method and system are provided for the detection and compensation of frame offset discontinuities for tandem connection trails in general and especially to frame offset discontinuities occurring at the entrance of a network element in a Synchronous Digital Hierarc...
04/03/2007
7197031Cross-connection of high bandwidth signal traffic across independent parallel shelves
A serial data stream is mapped through a cross-connect via two or more parallel independent shelves. The serial data stream is split into at least two sub-streams. If the lead frame of a sub-stream contains a concatenation indicator, it is replaced by a valid payloa...
03/27/2007
7190666Identification of priority faults in a transport network
A first aspect of the invention provides a system for prioritising faults in a transport network comprising network elements arranged to transport data signals comprising respective overhead data and payload data. The system comprises one or more first network eleme...
03/13/2007
7173936Method and apparatus for partitioning SONET frames into logical channels to optimize bandwidth utilization
A system for partitioning SONET frames into logical channels in a SONET ring is described. A SONET frame comprising a number of STS frames is subdivided into a plurality of logical channels. Each logical channel includes one or more STS frames. A protection layer is...
02/06/2007
7170852Mesh with projection channel access (MPCA)
A method for a communications network with a protect channel transmitting protect channel data and working channel transmitting working channel data includes transmitting the working channel data via the protect channel upon a disruption in the working channel, and ...
01/30/2007
7167483System and method for managing subrate services in an optical network
A system and method of managing subrate paths in an optical network. An example embodiment is a network administration application or component. The application receives a description of a desired service for an optical network through a graphical interface. The app...
01/23/2007
7161944Method and system for optimized routing and protection of VT traffic in SONET networks
The invention provides a method and system for enhancing the capability to optimally route VT circuits over SONET networks. The invention discloses a method for identifying Network Elements (NEs) that have VT capability (i.e., VT cross connect capability) and, when ...
01/09/2007
7158540Ring network element and the ring network architectures it enables
A ring network element and the ring network architectures it enables. According to one embodiment of the invention, a single network element includes a full TDM cross-connect and a multiple ring unit. The full TDM cross-connect is coupled to every line card slot in ...
01/02/2007
7139277Multi-terabit SONET switching with common time reference
A time-based switching method and system of SONET frames that utilize a common time reference is disclosed. Time is divided into a plurality of contiguous periodic time frames. A plurality of SONET frames is associated with a time frame; the plurality of SONET frame...
11/21/2006
7133415SONET circuit emulation with VT compression
A method for data communications includes receiving a time-division-multiplexed (TDM) input signal on a first circuit, the signal including an input sequence of frames of data, each such frame divided into sections for carrying respective sub-rate payloads. After de...
11/07/2006
7130264Service protection method and apparatus for TDM or WDM communications networks
Service path protection is provided for packet-based data services (e.g. GbE or FC) by making available to a protected service, as and when needed, preemptable (i.e. sharable) transport bandwidth (e.g. STS-1s for a SONET network) used, under normal conditions, to tr...
10/31/2006
7126943Method and apparatus for interfacing a parallel connection
A method and apparatus for interfacing a parallel connection, the parallel connection transmitting high bit-rate signals for a short distance. The method comprises: receiving a synchronous N-bits input data flow at a first input frequency; inserting said input data ...
10/24/2006
7106746Method and system for data stream switching
A method, system, and logic for switching data streams are disclosed. Synchronous transport signal streams are generated. A destination for each synchronous transport signal stream is recorded in the overhead of the synchronous transport signal stream. The synchrono...
09/12/2006
7103041Optimization of number of transceivers used in a switch
A switch. The switch includes a port card. The switch includes a network connected to the port cards. The network having transmitters and receivers that communicate with each other and have assignments between each other. The switch includes a fabric connected to th...
09/05/2006
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