82 results about "Routing architecture" patented technology

Content networking is an emerging technology, where the requests for content accesses are steered by "content routers" that examine not only the destinations but also content descriptors such as URLs and cookies. In the current deployments of content networking, "content routing" is mostly confined to selecting the most appropriate back-end server in virtualized web server clusters. This invention presents a novel content-based routing architecture that is suitable for global content networking. In this content-based routing architecture, a virtual overlay network called the "virtual content network" is superimposed over the physical network. The content network contains content routers as the nodes and "pathways" as links. The content-based routers at the edge of the content network may be either a gateway to the client domain or a gateway to the server domain whereas the interior ones correspond to the content switches dedicated for steering content requests and replies. The pathways are virtual paths along the physical network that connect the corresponding content routers. The invention is based on tagging content requests at the ingress points. The tags are designed to incorporate several different attributes of the content in the routing process. The path chosen for routing the request is the optimal path and is chosen from multiple paths leading to the replicas of the content.

Methods, devices, signals, and systems are provided in a message routing architecture which provides improved capabilities for integrating “digital” communication through email messages with “analog” communication through voice and/or fax or pager messages. Email can be addressed using nothing more than a standard telephone or fax number. If the registered owner of the telephone or fax number has a corresponding email address, then the invention converts the telephone or fax number to the email address for delivery and uses standard email delivery systems to deliver the message. If no conventional delivery email address is known, or if the message sender or recipient specify multiple delivery modes, then the email message content is transformed into voice, pager and/or fax content and delivered to the recipient using the telephone or fax number which was specified as the email address. Familiar telecommunications services such as call forwarding and selective call blocking can also be used with messages that originate as email. The invention also supports use of telecommunications numbers as indexes into databases which contain public key certificates, to make it unnecessary for a proposed message recipient to provide its public key expressly in advance to each particular proposed message originator.

A method of processing a call request to a callee in a network telephony system is provided which includes mapping a hostname portion of a callee address to a canonical form of the hostname and determining a canonical form of a username portion of a callee address. The canonical form of the user identity of the callee is then used as an index to a user database to retrieve a callee database record. The callee database record is then used to determine call routing based on the retrieved callee database record, such as user location, preferences and policy data stored in the record. The method is generally performed by a signaling server in the network, such as a SIP proxy server. The signaling server can also provide security features such as caller authentication. A scalable signaling and routing architecture is also provided.

The present invention provides a routing architecture including a control plane, a compute plane, and a forward plane. The forward plane provides traditional forwarding of packets to the next-hop address, along with any necessary header manipulation, while the control plane configures the forward plane and the compute plane for desired operation. The compute plane is configured for high-speed processing of packets to provide application level support, including manipulating application data in the payload of the packets during routing. The forward plane preferably implements forwarding rules using filters sufficient to forward a received packet to the next-hop address, to the compute plane for application processing, or to the control plane to facilitate control or configuration.

A multipath routing architecture for large data transfers is disclosed. The architecture employs an overlay network that provides diverse paths for packets from communicating end hosts to utilize as much capacity as available across multiple paths while ensuring network-wide fair allocation of resources across competing data transfers. A set of transit nodes are interposed between the end-hosts and for each end-to-end connection, a transit node can logically operate as an entry gateway, a relay or exit gateway. Packets from the sender enter the entry node and go to the exit node either directly or through one of a plurality of relay nodes. The exit node delivers the packets to the receiver. A multipath congestion control protocol is executed on the entry node to harness network capacity for large data transfers.

A method (150) for defining an aligned logic cell grid and interconnect layout of a semiconductor integrated circuit having a logic cell (12) is disclosed. The interconnect layout is resized in accordance with a highest common denominator of an initial routing pitch (24) of the interconnect layout and a transistor pitch (14) of the logic cell. The cell grid is aligned with the resized routing pitch (124) which provides efficient routing density and transistor performance, minimises excess transistor area and wire routing waste while maximising cell packing density.

A programmable logic device and associated method is provided with repairable regions. In one aspect, general routing interconnect lines are segmented within repairable regions. In another aspect, IO bus lines and associated circuitry are provided that accommodate redundancy in a staggered segmented architecture. In another aspect, a dedicated routing architecture between particular logic regions accommodates shifting to define and utilize repairable regions. Principles of other aspects are illustrated and described in the context of several exemplary embodiments of aspects of the invention.

An FPGA architecture has top, middle and low levels. The top level of the architecture is an array of the B16x16 tiles arranged in a rectangular array and enclosed by I/O blocks on the periphery. On each of the four sides of a B16x16 tile, and also associated with each of the I/O blocks is a freeway routing channel. A B16x16 tile in the middle level of hierarchy is a sixteen by sixteen array of B1 blocks. The routing resources in the middle level of hierarchy are expressway routing channels M1, M2, and M3 including groups of interconnect conductors. At the lowest level of the semi-hierarchical FPGA architecture, there are block connect (BC) routing channels, local mesh (LM) routing channels, and direct connect (DC) interconnect conductors. Each BC routing channel is coupled to an expressway tab to provide access for each B1 block to the expressway routing channels M1, M2, and M3, respectively. Each BC routing channel has nine interconnect conductors which are grouped into three groups of three interconnect conductors. Each group of three interconnect conductors is connected to a first side of a Extension Block (EB) 3x3 switch matrix. A second side of each EB 3x3 switch matrix is coupled to the E-tab. Between adjacent B1 blocks, in both the horizontal and vertical directions, the leads on the second side of a first EB 3x3 switch matrix may be coupled to the leads on the second side of second EB3x3 switch matrix by BC criss-cross extension.

An embodiment of this invention pertains to a 3-sided routing architecture to interconnect function blocks, such as logic array blocks (“LABs”), within a programmable logic device (“PLD”). In the 3-sided routing architecture, inputs and outputs on a first side of a function block connect to a first channel, and inputs and outputs on a second side of the function block connect to a second channel where the second side is opposite the first side. Inputs and outputs on a third side of the function block connect to a third channel. A fourth channel associated with a fourth side of the function block, the fourth side opposite the third side, is coupled only to the first channel and the second channel. In one configuration, the inputs and outputs on each of the first side, the second side, and the third side have an equal number of inputs and outputs. In this configuration, each of the first channel, the second channel, and the third channel have the same width. In another configuration, the number of pins on one of the first side, the second side, or the third side differs from the number of pins on another one of those sides.

A cluster internal routing network for use in a programmable logic device with a cluster-based architecture employs a Clos network-based routing architecture. The routing architecture is a multi-stage blocking architecture, where the number of inputs to the first stage exceeds the number of outputs from the first stage.

The embodiment of the invention provides a virtual broadband remote access method and system, and a controller. The method comprises: receiving a user access protocol message from a user device; selecting a broadband network gateway control pool example for the user device according to a business deployment strategy; completing access and/or authentication according to the user access protocol message and the user device, and generating a user table; and generating a user data forwarding table according to the user table; receiving a user data message, and forwarding the user data message according to the user data forwarding table. In the process of forwarding the user data message, a control function is separated, a virtualization technology is employed for realization, devices such as acontroller and the like are configured to realize forwarding of a user data message with no need for deployment of special devices or usage of special business plates on a current route architecture,and therefore the whole energy consumption is reduced and high-performance forwarding is realized.

An improved interconnect structure in programmable devices gives a new dimension to the routing architecture, where architecture is divided into various domains. It includes at least one set of input lines, each said set having predetermined number of input lines; an equal number of sets of routing lines, each said set of routing lines being connected to a corresponding set of input lines using a switch box; thereby forming domain based routing structures, each domain being disjoint with the other domain. Segregating FPGA routing resources into various independent routing domains is done; each domain providing connectivity to route a signal to a set of sinks.

Disclosed is an improved method, system, and article of manufacture for implementing routing for an electrical circuit and chip design. A routing architecture can be represented as a spectrum of different granular routing levels. Instead of routing based upon area, routing can be performed for specific routes or portions of routes. Different types of representation or levels of abstraction for the routing can be used for the same net or route. Partial topological reconfiguration, refinement, or rip-up can be performed for a portion of the integrated circuit design, where the portion is smaller than an entire route or net. Non-uniform levels of routing activities or resources may be applied to route the design. Prioritization may be used to route certain portions of the design with greater levels of detail, abstraction, or resources than other portions of the design.

The present disclosure relates to multi-mode RF power amplifier (PA) circuitry that may include a first PA path and a second PA path, each of which is fed from a common RF input. During a first operating mode, the first PA path receives and amplifies a first RF input signal via the common RF input, and during a second operating mode, the second PA path receives and amplifies a second RF input signal via the common RF input. To facilitate sharing of the common RF input, during the first operating mode, the second PA path is substantially de-coupled from the common RF input, and during the second operating mode, the first PA path is substantially de-coupled from the common RF input. By sharing the common RF input, size and costs of the multi-mode RF PA circuitry may be reduced.

A method for interconnecting a plurality of dies. The method generally includes receiving a plurality of interconnect requirements for the dies. The interconnect requirements may include a priority for each of a plurality of nets. A position and an angle for one of the dies relative to a substrate may be calculated in response to the interconnect requirements. A plurality of nets may then be routed among the dies and a plurality of substrate pads defining external connections for the substrate. The dies may be mounted to the substrate after routing has been finalized.

Improved routing architectures including one or more high speed input/output (I/O) bypass paths are provided for use in, for example, programmable logic devices (PLDs) such as field programmable gate arrays (FPGAs). The output bypass paths add additional routing connections to the routing architecture, providing faster connections between the output of a logic element (LE) in the PLD and external circuitry. In one embodiment, an output bypass path is used for directly connecting the output of the LE to the input of an I/O multiplexer of an I/O block. In another embodiment, the output bypass path also bypasses the I/O multiplexer, providing a direct connection between the output of the LE and a bypass multiplexer of the I/O block. Also provided is an input bypass path which provides direct connections between an input buffer of the I/O block and an otherwise dangling conductor at the periphery of the PLD's routing architecture.

Disclosed is an improved method, system, and article of manufacture for implementing routing for an electrical circuit and chip design. A routing architecture can be represented as a spectrum of different granular routing levels. Instead of routing based upon area, routing can be performed for specific routes or portions of routes. Different types of representation or levels of abstraction for the routing can be used for the same net or route. Partial topological reconfiguration, refinement, or rip-up can be performed for a portion of the integrated circuit design, where the portion is smaller than an entire route or net. Non-uniform levels of routing activities or resources may be applied to route the design. Prioritization may be used to route certain portions of the design with greater levels of detail, abstraction, or resources than other portions of the design.

Methods and systems for achieving self-organized growth of a logic pathway. A number of hardware modules that represents a core can be configured and communicated via a packet routing architecture. Each core includes a plurality of sub-modules that interact dynamically to a growth algorithm. A flow network can be created between a sensor input and a prediction of a desired sensor input and a link can be formed between a regularity within a core and another core via a link-flow-selection process. A digital data packet can be transmitted between the cores for communicating activation of the regularity and to exchange energy. Such physically-self organized circuit fabric system interacts dynamically to a growth algorithm that takes the input to produce a desired output and continuously self-repair and/or heal if damaged.

The invention discloses an IP-based software defined ubiquitous wireless MANET routing architecture, the wireless MANET routing architecture comprises three basic layers: an application plane, a control plane and a data plane, and the application plane comprises routing, data application, security, load balancing, strategy, QoS and the like, wherein the control plane comprises a control plane of amobile SDN controller MSC and a control plane of a mobile node (MN), the control plane of the mobile SDN controller MSC comprises a connection management module, a topology learning module, a forwarding management module and OpenFlow message compression and decompression, and the control plane of the mobile node MN comprises an OpenFlow message compression and decompression local adaptive controller LAC and a flow table FT, the data plane has the functions of forwarding an entered media stream according to a flow table FT rule and compressing/decompressing a packet header. According to the MANET routing system structure, position service support for tracking node positions is not needed, the size of Openflow messages is reduced through a compression and decompression method, and air interface resources of nodes are saved.