Abstract: A Diameter router is presented for performing load balancing and initial Diameter message routing in an IMS network, where clients in network elements are provisioned with the address of the router and send an initial Diameter request message for a given session to the router. The router selects a server based at least partially on a type of IMS message session, application services, subscriber information, or billing information, and sends a relayed initial Diameter request message to the selected server. The selected server sends an initial Diameter response to the router which then forwards a relayed initial response to the client. Thereafter, the client and the selected server send messages directly to each other for the remainder of the session.

Abstract: A 7th order splitter for replacing the known 9th order splitter of an ISDN/POTS telecommunication system and reducing thereby the space occupied on the board as well as the cost. The 7th order splitter comprising, between line terminals (Line+, Line?) and POTS/ISDN terminals, the cascade connection of a LC filter cell (L21a, L12b, C21) and several elliptical filter cells (L22a, L22b, C22, C24, C25; L23a, L23b, C23, C26, C27). One or more of these filter cells is associated with a damped series resonance circuit comprising a capacitor (C21; C22; C23) series coupled with an RL circuit (R21, L24; R22, L25; R23, L26) between two winding (L21a, L21b; L22a, L22b; L23a, L23b) of a symmetrical coil of the associated filter cell. Each RL circuit is constituted by the parallel coupling of a resistor (R21; R22; R23) and a coil (L24; L25; L26).

Abstract: A scheduling method for multimedia broadcast/multicast service (MBMS) is provided according to the present invention, comprising steps of: configuring service specific information and service scheduling information separately from MBMS service data to form an MCCH control message of an MBMS control channel; and transmitting the MCCH control message and the MBMS service data to a receiving end, wherein the service specific information and the service scheduling information are applied with a single-frequency network combining scheme.

Abstract: The object of the invention is an audiovisual program content preparation method. The inventive method comprises the following steps: a user group (5) is selected, sequences are selected from a chosen audiovisual program content feed, by identifying them using markers, the sequences are extracted using the markets for the chosen audiovisual program content feed, the extracted sequences are saved in a database (9) accessible to the users of said group (5).

Abstract: A system, device, and method for aggregating traffic in a network, such as for wireless backhaul traffic in a cellular communication system. UE device traffic is sent to and from an access bridge, which is one node in an access network formed into a ring topology, and from the access bridge to a core bridge in communication with a core network of the communication system. According to a preferred embodiment, the access bridge and the core bridge each have a LAG component configured according to IEEE 802.1D and IEEE 802.3-2005, and a ring component configured according to IEEE 802.1Q or 802.1AD. In operation, this LAG component load balances communication traffic coming into the bridge node onto one of two VLANs formed of portions of the access network ring. In the event of a fault condition affecting one of the two VLANs, the fault VLAN is removed from the aggregation scheme until the fault condition is alleviated.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at a policy and charging rules node (PCRN), a request from a requesting node for an establishment of a first service data flow (SDF); generating a first rule set for implementing the first SDF in response to the request; transmitting a first rule of the rule set to a first node for installation of the first rule; waiting for a period of time for a response from the first node; determining from the response whether installation of the first rule at the first node failed or succeeded; and if installation of the first rule succeeded, transmitting a second rule of the first rule set to a second node for installation of the second rule.

Abstract: Techniques for single-failure protection in load-balanced network architectures are disclosed. For example, in one aspect of the invention, a technique for processing a traffic flow in a communication network comprising a plurality of nodes, the traffic flow being deliverable from a source node to at least one destination node via one or more intermediate nodes, comprises the following steps/operations. The traffic flow is split at the source node into a plurality of parts. The parts are distributed to respective ones of the intermediate nodes such that the parts are routed from the source node to the at least one destination node in a disjoint manner.

Abstract: A multicast replicating network node (203) according to the present invention reports to a traffic scheduling network node (205) information (231) indicative for the bandwidth consumed by multicast services or indicative for the bandwidth available for unicast services on a line coupled to the multicast replicating network node (203). The traffic scheduling network node (205) this way stays aware of the multicast bandwidth occupancy on different subscriber lines and access node uplinks without serious impact on its processing requirements.

Abstract: A normalization engine and a method of requesting a key or performing an operation pertaining to an end point. In one embodiment, the normalization engine includes: (1) a data manager configured to receive a request to execute an operation or obtain a key/value pair pertaining to an end point and determine a normalized version of the key in the key/value pair and (2) a normalization mapping repository configured to contain normalization mechanisms, the data manager further configured to employ the normalized version to obtain one of the normalization mechanisms from the normalization mapping repository, carry out the normalization mechanism and employ a data source corresponding to the end point to retrieve a device-specific value corresponding to the normalized version.

Abstract: Suppression of Announcements in Communication Networks. The present invention relates to communication networks and, more particularly, to announcements in communication networks. System and method for suppression of announcement made to a user in a communication network. A user requests to start a communication session with a second user in the network. A suppression of announcement indicator is added in Connect operation while the communication session is being established with the second user and the announcement is suppressed from being played to the user if the second user is unable to answer the request. The users may be IMS users and/or PSTN users belonging to the same network or different networks.

Abstract: Various exemplary embodiments relate to a method for reallocating loading from a datacenter site to other datacenter sites in a cloud computing network using an objective function that defines a performance characteristic of the cloud computing network at each datacenter site and a derivative of the objective function, the method comprising: evaluating the derivative for each of a set of other datacenter sites; identifying based upon the evaluated derivatives a datacenter site in the set of datacenter sites that results in the smallest increase in the objective function; and reallocating loading among the datacenter site and the other datacenter sites based upon the evaluated derivatives and the identified other datacenter site.

Abstract: The present invention provides a method and apparatus for use in non-adaptive retransmission. The method comprises: configuring an uplink UL demodulation reference signal DM-RS for retransmission in response to a retransmission request. In one embodiment, the demodulation reference signal DM-RS is configured to be the same as a demodulation reference signal for an initial transmission. In another embodiment, the demodulation reference signal DM-RS is configured with respect to the number of layer(s) for retransmission according to predetermined rules for the initial transmission.

Abstract: A replay detection technique with “small state” (e.g., with relatively few bits of state information). A sending node generates a random number ri, retrieves a code sequence (h*i-1), in one example, comprising the last 5 bits of a hash value (hi-1) of a previous packet i?1, generates a hash value hi based on the random number ri and the code sequence (h*i-1), and formulates a packet with index i including hi, ri and datai for delivery to a receiving node. The receiving node retrieves ri and hi from packet i; retrieves a code sequence (h*j) associated with a previous packet j, in one embodiment, comprising the last 5 bits of a hash value (hj) of a previous packet j, generates a hash value (hj+1) based on the random number ri and the code sequence (h*j); and declares a replay attack if hi does not equal hj+1.

Abstract: Aggregation Switches connected via a virtual fabric link (VFL) are each active and each coupled to a multi-chassis link aggregate group (MC-LAG), which is assigned to a multi-chassis link aggregate group virtual local area network (MC-LAG VLAN). A virtual Internet Protocol (IP) interface is allocated to the MC-LAG VLAN and configured on both Aggregation Switches.

Abstract: A digital version of both amplitude and phase of at least one generic polarization component of a received optical signal is developed using dual-polarization direct differential detection with digital signal processing. The received signal is split into orthogonal polarization components, each of which is split into three copies. For each orthogonal polarization component a) an intensity profile is conventionally obtained using a copy and b) phase information is obtained by supplying each remaining copy to a respective one of a pair of optical delay interferometers having orthogonal phase offsets, followed by respective balanced intensity detectors. The outputs the balanced intensity detectors and the intensity profiles are converted into digital representations and used to develop, via signal processing, the optical field information of at least one generic polarization component of the received optical signal. Compensation of impairments, such as PMD, is realized through further processing.

Abstract: Embodiments are directed to mobile localization, and more specifically, but not exclusively, to tracking mobile devices. Embodiments include methods that consider probability kernels with distance-like metrics between distributions. Also described are probabilistic kernels that can be used for a regression of location, which can achieve up to about inn accuracy in an office environment.

Abstract: The present invention provides a method of multiuser precoding and scheduling, comprising: feeding channel state information (CSI) and statistic properties of CSI error back to a base station (BS) from a user equipment (UE); generating multiuser precoding matrix and scheduling scheme by the BS, according to the feedback CSI and the statistic properties of CSI error; and performing multiuser precoding and scheduling on user data by using the generated multiuser precoding matrix and scheduling scheme.

Abstract: A capability is provided for managing resources of a system. The system resources are managed using a hierarchical organization of the system resources. The resources of the system are managed using at least one hierarchical resource pool, where a hierarchical resource pool includes a master resource pool and a plurality of virtual resource pools. The master resource pool includes a logical representation of the resources managed by the hierarchical resource pool. The virtual resource pools include logical representations of respective subsets of the resources managed by the hierarchical resource pool. A method for managing resources of a management system includes receiving, from a borrower, a resource request for one of a plurality of resources of the management system where the resources are managed using a hierarchal resource pool, identifying a virtual resource pool associated with the resource request, and determining whether to serve the resource request from the identified virtual resource pool.

Abstract: An photonic device, comprising one section of a material which is different from the material of another section such that the two sections present different optical birefringent index values. This causes a first set of polarization modes to move in a spectral space with a different velocity than a second set of polarization modes. A bias current, or voltage, is used for controlling the overall birefringence effect in the device. The biasing for controlling the birefringence effect is performed such the TE modes and the TM modes of the device are made to coincide in their respective spectral position. Thus the device is made insensitive, or presents substantially reduced sensitivity, to the polarization of any incoming optical signal.

Abstract: The object of the invention is a system for analyzing gases which are at a pressure on the order of a secondary vacuum. The system includes a gas ionization device that includes a cathode having conducting walls defining a cylindrical volume and a disc including at least one central through hole, an anode placed substantially at the center of the hole, a plasma source, the plasma being generated in the cylindrical volume by the combined action of an electric field and a magnetic field, orthogonal to the electric field, a system for collecting the light radiation emitted by the plasma, a cylindrical cavity coaxial to the anode having a conductance lower than that of the cylindrical volume and arranged between the ionization device and the collector system, and an analysis device for the ionized gases including an optical spectrometer for analyzing the evolution of the radiating spectrum.