Abstract: Preventing duplicate sources in a network that uses network address port translation on an established connection. In response to receiving an inbound packet at a destination host, input values are obtained therefrom and used to consult a mapping. If no match is found, a translation is performed, whereby a determination is made as to whether or not a port number is available within a range of port numbers that comply with a security association governing the connection. If so, an available port number is assigned to the connection, thereby avoiding a possibility of a duplicate source. If a port number is not available, the packet is rejected.

Abstract: Conventional routers employ a wired backplane that employs “long reach” serializer/deserializer (SerDes) links, but this type of architecture is complicated, costly, and uses a considerable amount of power. To address some of these issues, a new wireless backplane architecture is provided here. This wireless backplane employs direct millimeter wave links between line cards that replaces the convention, wired switching fabric.

Abstract: Apparatus and methods are provided for application layer optimization in a modern data network. The optimization incorporates variable rate transmission across one or more optical data channels. Data throughput is maximized by enabling quality of service profiles on a per transmission channel basis. According to one aspect, a system is provided in which the application layer is aware of and controls the underlying transmission rate and quality of the transmission. This enables the system to fully utilize the transmission capacity of the channel. The application layer may map different applications to different transmission classes of service. The services can be classified based on data throughput rate, guaranteed error rates, latency and cost, among other criteria. This provides flexibility to the application layer to map some loss tolerant applications to a lower cost (per bit) transmission class.

Abstract: A method and system to help manage latency in setup of fallback communications, such as circuit switched fallback calls for instance, by taking into account the load on various fallback carriers. When a first network is serving a device and engages in a process to facilitate setup of a communication for the device to be served by a second, fallback network, the first network will work with the second network to determine which local carriers of the second network are least loaded, and the first network will then direct the WCD to scan those determined least-loaded carriers in particular. This process may thus help to avoid having the WCD spend time scanning local carriers of the second network that the second network is unlikely to assign in any event due to loading.

Abstract: New communication system with packet's retransmission elements that do not use and do not depend on any routing protocol provides definite mechanisms to deliver packets from sender to receiver. Packet's retransmission elements are no longer in charge for calculating and maintaining routing tables in order to make decision regarding packet forwarding from ingress port to egress port. Each packet besides data contains set of instructions that presents complete path description from sender to receiver and rules of packet's processing on its way depending on various network metrics. The set of instructions is devised to be executed or interpreted by each network element that packet passing through. The outcome of instructions execution provides decision regarding packet forwarding and transformation. In order to provide information for path calculation and rules of packet processing there are centralized services—Network map, Pathfinder, Name registrar and Network policy.

Abstract: Methods and systems are provided for prioritizing time-division multiplexed communications resources at a femtocell. A femtocell initially provides time-division-multiplexed wireless service to a plurality of wireless communication devices (WCDs) using a first number of slots per cycle, each WCD in the plurality having at least one assigned slot. During the first time period, the femtocell detects a trigger. Responsive to detecting the trigger, the femtocell, in a second time period, switches to providing service using a second number of slots per cycle, the second number being less than the first number, such that a first WCD in the plurality does not have an assigned slot.

Abstract: A wireless device receives a control command to transmit a random access preamble on a first secondary cell. The wireless device repeatedly transmits the random access preamble until a random access response corresponding to the random access preamble is received or a predetermined number of transmissions is reached. If the predetermined number of transmissions is reached without receiving the random access response, the wireless device stops transmission of the random access preamble and keeps a connection with the base station active.

Abstract: A cable television plant may include fiber nodes, cable modems, a management information base (MIB), and a cable modem termination system (CMTS). The CMTS may include logic to apply information from the MIB to determine the suitability of resources assigned to the fiber nodes from particular MAC domains for providing data communications.

Abstract: A networking system for a content-centric-network (CCN)/named-data networking (NDN) comprising a first point of attachment (PoA) configured to communicate with a mobile node (MN) and maintain a forwarding state for the MN to support seamless mobility for the MN, and a second PoA configured to communicate with the MN and obtain the forwarding state for the MN from the first PoA after a handoff of the MN from the first PoA to the second PoA, wherein the forwarding state is used to exchange a plurality of interests and a plurality of data responses between the MN and the CCN/NDN.

Abstract: Nodes, network and methods for communicating utilizing radio in a network including nodes. The method includes broadcasting from a center node, transmitting from a first primary peripheral node, and transmitting from an intermediate node to the center.

Abstract: A system compatibility method and apparatus are disclosed. The system compatibility method includes sending, according to a downlink resource configured in a new frame structure of a first system, information of a downlink resource carrier. The information of the downlink resource carrier includes information of a downlink resource carrier compatible with a second system. Information of an uplink resource carrier is received according to an uplink resource configured in the new frame structure of the first system. The information of the uplink resource carrier includes information of an uplink resource carrier compatible with the second system.

Abstract: A method and apparatus for transmitting data using a frame in a broadband wireless communication system are disclosed. The method for transmitting and receiving data in a broadband wireless communication system includes: setting a data frame for transmitting and receiving data through uplink and downlink; and transmitting and receiving data through the set data frame, wherein the data frame includes one or more first subframes and one or more second subframes including a different number of data symbols from that of data symbols of the first subframe.

Abstract: The method to forward a packet according to predefined protocol steps applies to a sensor personal area network that includes data communication sensor devices. The method includes assigning a predefined compression value to a compression field in the packet for indicating that a source network identifier of the originator of the packet is assumed to be equal to a destination network identifier of an intended recipient of the packet. Furthermore, the method includes assigning a predefined label switching value lsv to an addressing mode field DAM-F in the packet P for indicating that the above mentioned protocol steps further include a label switching principle that must be applied to forward the packet. Finally the method includes using a source network identifier field SNI-F of the packet for storing and retrieving the label value lab1 for application of the label switching principle based thereon.

Abstract: A method for transmitting scheduling information in a mobile communication system and a femtocell base station apparatus using the same are provided. Scheduling information can be transmitted using a hierarchical scheduling scheme in which a femtocell base station is allocated resources from a macrocell base station and the femtocell base station then allocates resources to femto users within its own resource region.

Abstract: A method and apparatus for admission control in a wireless train communication system with TDMA are disclosed. The method and apparatus according to one embodiment of the present invention identifies neighboring devices within neighborhood of a given device that use the time slot. The frequency and location information for the intended device and the unintended devices are used to determine whether to grant the time slot. In another embodiment according to the present invention, the receive signal strength information at the neighboring devices is used, instead of the distance information, for admission control.

Abstract: A method and an arrangement in a radio network node for reconfiguring mappings from Carrier Indicator Field-values to component carriers are provided. Each CIF-value is mapped to a respective component carrier comprising a respective shared data channel. Each respective shared data channel corresponds to at least one downlink control channel carrying said each CIF-value. The radio network node reconfigures mappings from CIF-values to component carriers, while at least one mapping of CIF-value to component carrier is maintained. The component carrier of said at least one mapping from CIF-value to component carrier comprises said at least one downlink control channel and a shared data channel corresponding to said at least one downlink control channel. The radio network node sends at least one of the reconfigured mappings from CIF-values to component carriers to the user equipment.

Abstract: An improved system and method are disclosed for peer-to-peer communications. In one example, the method enables an endpoint to transfer data directly to another endpoint.

Abstract: A system and method is presented for broadcasting from a utility node a request for network routing information, receiving at the utility node routing information from neighboring utility nodes in response to the broadcast request, and registering the utility node with an access point that provides ingress and egress to and from the network. A node is selected to function as a proxy gateway for one or more other nodes in the network. A new utility node becomes connected to one or more utility networks by registering with the proxy gateway. The proxy gateway transmits registration requests and registration information from each node to a back office server and/or a Domain Name Server via an access point for which the proxy gateway functions as its proxy.

Abstract: A mobile terminal and a method of managing and performing data communication using the same are provided. The mobile terminal effectively performs data communication over heterogeneous networks at a low cost and effectively manages communication modules connected to the heterogeneous network, and the method performs and manages data communication using the mobile terminal.

Abstract: A credit based queue scheduler dynamically adjusts credits depending upon at least a moving average of incoming packet size to alleviate the impact of traffic burstiness and packet size variation, and increase the performance of the scheduler by lowering latency and jitter. For the case when no service differentiation is required, the credit is adjusted by computing a weighted moving average of incoming packets for the entire scheduler. For the case when differentiation is required, the credit for each queue is determined by a product of a sum of credits given to all queues and priority levels of each queue.