95 results about "Carrier grade" patented technology

In embodiments of the present invention improved capabilities are described for a mobile broadband routable internet (MBRI) providing for carrier-grade, networked, broadband, IP-routable communication among a plurality of mobile devices, where the mobile devices may represent a plurality of nodes that are linked together through a mobile ad-hoc network (MANET). Mobile devices may operate as peers in a peer-to-peer network, with full IP routing capabilities enabled within each mobile device, thereby allowing routing of IP-based traffic, including deployment of applications, to the mobile device without need for infrastructure conventionally required for mobile ad hoc networks, such as cellular telephony infrastructure. Full IP-routing to mobile devices may allow seamless integration to the fixed Internet, such as through fixed or mobile access points, such as for backhaul purposes. Thus, the MBRI may function as a standalone mobile Internet, without connection to the fixed Internet, or as an IP-routable extension of another network, whether it be the Internet, a local area network, a wide area network, a cellular network, a personal area network, or some other type of network that is capable of integration with an IP-based network.

A system and method of bypassing the regulated portion of the Public Switching Telephone Network (PSTN) to establish carrier-grade voice transmissions and / or IP data communications between an Internet Calling Person having a first telephone and a first PC coupled to a first Local Service Access Provider (LSAP) and an Internet Called Party having a second telephone and a second PC coupled to a second different Local Service Access Provider (LSAP).

A modular architecture for use in a network device such as a Remote Authentication Server (RAS) includes a number of interconnected objects associated with processes, services, access protocols and other functionality provided on the device. Objects may also be associated with users, sessions or other data structures that may be accessed by any of the functional objects in the device. Additional services and updates may easily be implemented into this architecture without disrupting user connections. Redundant copies of the objects may be maintained in memory to facilitate the provision of carrier grade performance by swapping out failed components in the event of a fault.

The present invention provides integrated framing in pluggable optical transceivers to extend the OTN framework into metro, regional, and core applications. Additionally, the present invention provides integrated FEC and optical layer OAM&P features into pluggable optical transceivers. This integration is done with existing pluggable transceivers defined by MSAs such as, but not limited to, XFP, XPAK, XENPAK, X2, XFP-E, and SFP+. Further, the present invention can be extended to new, emerging pluggable transceiver standards and specifications. The integration of framing, FEC, and optical layer OAM&P is done so that the pluggable transceiver preserves the specifications in the MSAs. This allows systems designed for existing pluggable transceivers to realize carrier-grade, robust performance without needed additional equipment such as transponders and without redesigning host equipment such as the line card to support new specifications.

Integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); alarming; amplification, and the like is described in optical transceivers, such as multi-source agreement (MSA)-defined modules. An optical transceiver defined by an MSA agreement can include advanced integrated functions for carrier-grade operation which preserves the existing MSA specifications allowing the optical transceiver to operate with any compliant MSA host device with advanced features and functionality. The optical transceiver can include CFP and variants thereof (e.g., CFP2, CDFP, CXP), OIF-MSA-100GLH-EM-01.0, CCRx (Compact Coherent Receiver), Quad Small Form-factor Pluggable (QSFP) and variants thereof (e.g., QSFP+, QSFP2), 10X10 MSA, XFP, XPAK, XENPAK, X2, XFP-E, SFP, SFP+, 300-pin, and the like.

Integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); alarming; amplification, and the like is described in optical transceivers, such as multi-source agreement (MSA)-defined modules. A pluggable optical transceiver defined by an MSA agreement can include advanced integrated functions for carrier-grade operation which preserves the existing MSA specifications allowing the pluggable optical transceiver to operate with any compliant MSA host device with advanced features and functionality, such as Forward Error Correction (FEC), framing, and OAM&P directly on the pluggable optical transceiver. The advanced integrated can be implemented by the pluggable optical transceiver separate and independent from the host device.

The invention provides a method for address allocation of public networks, which comprises that a carrier-grade network (CGN) address translation device receives online messages of users and judges whether idle public network addresses exist in a public network address pool; if no idle public network address exists in the public network address pool or the quantity of the idle public network addresses is less than that of a presupposed threshold value of the idle public network addresses, the CGN device constructs and sends dynamic host configuration protocol (DHCP) requests to a DHCP server to apply for a public network address set; and the CGN device allocates a first public network address in the public network address set to the users. The invention further discloses a device and system for address allocation of public networks. According to the method, the device and a system for address allocation of public networks, unified management and allocation of public network addresses of the CGN device can be achieved and the utilization rate of the public network addresses of the CGN device can be improved so as to avoid waste of public network addresses.

An embodiment of the invention provides an address distributing method, an address distributing equipment and an address distributing system. The address distributing method is applicable to the network with a BRAS (broadband remote access server) which is provided with a carrier grade network address translation and includes that the BRAS detects CGN faults locally set, receives access request transmitted by terminals and distributes IP (internet protocol) addresses of the public network to the terminals. When in CGN faults, terminal flow transfer is omitted, service restore time of the terminals of the BRAS is shortened and cost is reduced.

The invention relates to a method for protecting an uplink plate card of carrier-grade broadband access equipment, in particular to the protection of the uplink plate card, which comprises the detailed steps: step 1, a master port is set as forwarding state and a slave port is set as blocking state; and step 2, the master port continues forwarding data if the master port works normally according to the detection and waits for the next detection; a main link and a standby link are switched if the link of the master port does not work normally according to the detection and the slave port is set as forwarding state; then the information of the master port is copied to the slave port so as to realize rapid the main / standby switch, and finally the master port is set as blocking state. The method for protecting the uplink plate card of the carrier-grade broadband access equipment realizes rapid switch within a plurality of milliseconds by simple configuration and low cost in a networking environment with double uplink, protects the completeness of the information and meets the requirements of the high service quality by users.

The invention provides a method and a device for flow switching in virtual private local area network service (VPLS) network, wherein a master pseudo-wire (PW) and a backup PW connected with user-oriented provider edge equipment (UPE) are disposed in the VPLS network. The method comprises: adding virtual switching instances (VSI) adopting the same master and backup PWs into a fast switching group in advance and respectively establishing forwarding table entries pointing to the master and backup PWs for each VSI; when the master PW in the fast switching group normally operates, controlling each VSI in the fast switching group to forward a message by the forwarding table entry pointing to the master PW; and when detecting that the master PW fails, controlling each VSI in the fast switching group to forward the message by the forwarding table entry pointing to the backup PW. The invention can largely shorten time for flow switching and ensure carrier-grade fast switching time of 50ms.

The invention relates to the field of network communication, in particular to a carrier-grade network address translation (CGN) equipment discovery method, CGN equipment discovery equipment and a CGN equipment discovery system. The method comprises the step of: transmitting a message carrying CGN equipment information to client equipment, so that the client equipment establishes a tunnel with CGN equipment according to the CGN equipment information, wherein the CGN equipment information comprises the type information and address information of the CGN equipment. Through the technical scheme provided by the embodiment of the invention, as the network equipment transmits the message carrying the CGN equipment information to the client equipment, and the client equipment acquires the type information and address information of the CGN equipment and establishes the tunnel with the CGN equipment according to the CGN equipment information, the problem on CGN equipment discovery is solved.

A carrier grade content router, includes a distinct management plane for housing externally visible management applications, and coordinating and relaying external management requests to appropriate underlying application code in the router; a distinct control plane for running control protocols required within an XML routed network; and a distinct data plane for receiving and forwarding customer data. Some functions can be implemented in software or via a hardware accelerator.

An IP multimedia gateway (IMG) determines device capabilities and proposed service priority profiles of communicatively coupled client devices. The determined device capabilities and proposed service priority profiles are transmitted to service managers for service scheduling. Device capabilities of the communicatively coupled client devices are configured or prioritized based on available actual service priority profiles from the service managers. The configured device capabilities are transmitted to the service managers for subsequent service scheduling. Services provided by the service managers are announced based on the available actual service priority profiles. The IMG communicates content for the announced services between the communicatively coupled client devices and the service managers. The IMG may allow the user of a client device to access desired content via other client devices. Content and / or downloaded content for carrier grade services are provided to one or more non-carrier grade client devices when needed.

The invention provides a method for establishing a dual-stack lite (DS-Lite) tunnel and a DS-Lite carrier-grade network address translation (DS-Lite CGN) device. The method comprises the following steps that: when a DS-Lite CGN has received an IPv6 message from customer premise equipment (CPE), if an item corresponded to an IPv6 address of a tunnel physical port of the CPE can not be queried in a tunnel item, a tunnel identifier corresponded to the IPv6 address of the tunnel physical port of the CPE is distributed and a DS-Lite tunnel between the CPE and the tunnel identifier is established; and moreover, the tunnel identifier is recorded in a network address translation (NAT) forwarding item. According to the invention, a problem on a large working load for transformation of a traditional NAT technology can be solved; and moreover, tedious configuration on a DS-Lite tunnel is avoided.

The invention discloses a hot standby method and device for CGN (Carrier Grade Network) equipment. The method comprises the following steps of: building a detection link between main equipment and spare equipment; switching the main equipment into the main state; switching the spare equipment into the spare state; building a backup channel on a detection link; and backing up information to the spare equipment by the main equipment via the backup channel. According to the hot standby method and device, the problem in the relevant technology that the service data of the CGN equipment under the three-layer network environment can not be backed up can be solved, and the CGN equipment can be subjected to hot standby under the three-layer network environment so as to effectively improve the service operation stability of the CGN equipment to further improve system performance.

A computing network, including: a plurality of peer computing devices including code, which when executed by a peer computing device causes the executing peer computing device to cooperate with at least one other of the peer computing devices; at least one server including code, which when executed by the at least one server locates at least one of the peer computing devices; and at least one mediator including code, which when executed by the at least on mediator collects information from at least some of the peer computing devices; wherein, the peer computing devices, at least one sever and at least one mediator are communicatively coupled via an at least carrier-grade telecommunications network being suitable for enhancing co-operation among the cooperating ones of the peer computing devices relative to best-efforts communications among the cooperating ones of the peer computing devices.

The invention discloses a protocol message transmission method, a home gateway and a CGN (carrier grade network switch) device. The method comprises steps as follows: the home gateway monitors a protocol message and parses the information of an internal address and an internal port in the load of the protocol message, and applies to the CGN device for an external address and an external port; and after receiving the information of the external address and the external port returned by the CGN device, the home gateway replaces the information of the internal address and the internal port in the load of the protocol message with the information of the external address and the external port, and forwards the protocol message through the CGN device. The invention realizes the ALG (application layer gateway)-like processing on the home gateway, generates the ALG type mapping entry on the CGN device based on PCP (peercast protocol), and closes the ALG function on the CGN device so as to relieve the processing burden of the CGN device.

The invention discloses an aggregated link switching method and an aggregated link switching device. The method comprises the following steps of: configuring a main link and a standby link in a plurality of links to be aggregated; aggregating the plurality of links to be aggregated according to a link aggregation protocol and determining the working state of each link according to a link aggregation result; and detecting a connection failure management protocol for each link in the aggregated links, and judging whether link switching is performed or not according to the working state of a failed link if detecting the failed link. By the method and the device, the reliability of the links can be improved, so that the requirement of carrier-grade time switching is met.

Integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); alarming; amplification, or the like is described in optical transceivers, such as multi-source agreement (MSA)-defined modules. An optical transceiver defined by an MSA agreement can include advanced integrated functions for carrier-grade operation which preserves the existing MSA specifications allowing the optical transceiver to operate with any compliant MSA host device with advanced features and functionality. An XFP module can include integrated circuitry configured to provide forward error correction encoding and decoding; a transmitter communicatively coupled to the integrated circuit; a receiver communicatively coupled to the integrated circuit; and a module housing in which the integrated circuitry, the transmitter, and the receiver are disposed, wherein the module housing is pluggable in a host device configured to operate the pluggable optical transceiver, and wherein the forward error correction encoding and decoding is performed transparently to the host device.

The invention provides a real-time task scheduling method oriented to the telecom-class Ethernet based on the composites-deadline-the real-time task and telecom-class Ethernet. The method comprises: scheduling in each moment, to judge system is described in a state of overload; if the system in a non-overload state, the use of the cut-off date as early as the priority tasks of EDF allocate priority, if the system is in overload state, then the value of task-based composite density, the task deadline distribution of tasks and costs to the Priority; the use of priority-based preemptive task scheduling approach to the implementation of task scheduling, to maximize the value of access to the largest systems.

The invention provides a message processing method, a message processing system and customer premises equipment, wherein the method includes: obtaining a tunnel endpoint address by the aid of a CPE (customer premises equipment) and building a tunnel by the aid of a DS (dual stack)-Lite; encapsulating a first up message of side equipment of an LAN (local area network) into a second message and transmitting the second message to a CGN (carrier-grade network) through the tunnel; and receiving the second message transmitted by the CGN through the tunnel, decapsulating the second message into the first message and transmitting the first message to the side equipment of the LAN. Mutual communication between two networks can be realized by the message processing method, the message processing system and the customer premises equipment.

The invention discloses a CGN(Carrier Grade Network Address Translation) broadband access gateway and an implementation method thereof. The implementation method includes that a main control board receives a traffic access request from a user, allocating a CGN boards carrying user traffic according to resource information of the CGN boards and leads traffic to the CGN board. The CGN board receives user traffic, creates an NAT session, adds the session to an NAT session list, performs traffic address translation and carries on transmission through an interface board. By adopting the gateway and the implementation method provided by the invention, unified management of broadband access network NAT sessions and trans-CGN board treatment of NAT traffic are realized and CGN redundant backup capability and utilization rate of the broadband access gateway are improved.

The invention provides a communication method and a device with forward error correction mechanism applied used for the carrier grade Ethernet. The Ethernet comprises an Ethernet port and the Ethernet port comprises a media access control MAC layer, a forward error correction logic sub-layer and a physical PHY layer. The method comprises the following steps that: A. when the sending is carried out through the Ethernet, the entity at the sending side receives the Ethernet data packet from the home MAC layer and applies the FEC coding to the Ethernet data packet, and then sends the data packet after being coded to the PHY layer; B. when the receiving is carried out through the Ethernet, the entity at the receiving side receives the Ethernet data packet after being coded from the home terminal PHY layer and applies the FEC decoding to the Ethernet data packet after being coded, and then delivers the data packet after being decoded to the MAC layer. The invention achieves the goal of improving the transmission performance of the physical channel and acquiring the transmission performance meeting the requirement for application with the minimum overhead, and simultaneously the invention ensures the intercommunication and interconnection with the common Ethernet port to which the FEC mechanism is not applied so as to realize the backward compatibility of the invention.

The invention discloses a method and a device for sending a data packet based on a dual-stack (DS)-LITE. In the method, an uplink data packet sent from a mobile terminal is received by a carrier grade network (CGN) through a DS-LITE tunnel; the uplink data packet is analyzed by the CGN to obtain identification information of the DS-LITE tunnel and the identification information of packet data network gateway (P-GWs); and a downlink data packet is packaged by the CGN according to the identification information of the DS-LITE tunnel, and the packaged downlink data packet is sent to the mobile terminal by the P-GW corresponding to the P-GW identification information. According to the technical scheme provided by the invention, the uniqueness of DS-LITE tunnel identification on the different P-GWs connected to the identical CGN can be ensured, so that one-to-one network address translation (NAT) mapping on internet protocol (IP) connection with the identical tunnel identification on the different P-GWs can be realized.

The invention discloses a chemical chain hydrogenation device and a chemical chain hydrogenation method based on iron-based oxygen carrier graded reduction. The device is a circulation loop composed of an air reactor, a cyclone separator, a reduction reactor, a fuel reactor, a return feeder, a steam reactor, and an isolator. According to the method, a Fe3O4-state iron-based oxygen carrier is oxidized into a Fe2O3-state iron-based oxygen carrier with air in the air reactor; separation is carried out in the cyclone separator; the Fe2O3-state iron-based oxygen carrier enters the reduction reactor, and is reduced into Fe3O4-state iron-based oxygen carrier with weakly reductive gas; the Fe3O4-state iron-based oxygen carrier enters the fuel reactor through a discharge pipe of the reduction reactor, and is reduced to FeO-state iron-based oxygen carrier with a gaseous fuel; the FeO-state iron-based oxygen carrier enters the steam reactor through the return feeder, and is subjected to a reaction with steam, such that the FeO-state iron-based oxygen carrier is converted into a Fe3O4-state iron-based oxygen carrier, and at a same time hydrogen is produced and is discharged through a hydrogen discharge pipe of the steam reactor; the Fe3O4-state iron-based oxygen carrier enters the air reactor through the isolator, and is subjected to an oxidation reaction with air, such that the regeneration of the Fe2O3-state iron-based oxygen carrier is completed.

The invention discloses a carrier grade LC optical fiber fast connector which comprises a front main body, a V-shaped groove assembly, a spring, a rear main body and a tail pressing block. A bare optical fiber penetrates the tail pressing block, and runs through the rear main body, the front main body and the V-shaped groove assembly to a 125-micro optical fiber clamping device. One end of the bare optical fibers contacts the end face of an optical fiber built in an LC ferrule. A 900-micro optical fiber is bent to push the tail pressing block. The 125-micro optical fiber clamping device locks an optical cable. According to the invention, the carrier grade LC optical fiber fast connector is suitable for fast connection of the LC type embedded optical fiber of a butterfly-shaped optical cable of 2.0*1.6mm; after a prefabricated formed LC connector is broken, fast connection can be carried out; and the construction cost and the maintenance cost can be reduced.

A carrier grade address translation (CGN) entity based data transmission method, a CGN entity, a gateway, and a system are provided. The CGN entity based data transmission method includes determining, by a CGN entity, that data is transmitted between a first terminal of a first gateway and a second terminal of a second gateway. The method further includes sending, by the CGN entity, IP addresses of the first terminal before and after NAT network address translation, IP addresses of the second terminal before and after NAT, and information about a tunnel between the CGN entity and the first gateway to the second gateway, so that the second gateway simulates the CGN entity to forward the data, sent by the second terminal, to the first gateway. Resource consumption of the CGN entity is reduced and transmission efficiency of interworking terminals is improved.