Abstract: A system and method is provided for remote session control of IP Multimedia Subsystem (IMS) sessions. A remote media flow may be established as part of an origination process wherein the controller UE requests that the media flow is established on a remote media UE as part of the origination request. A remote media flow may also be established as part of a termination process wherein the controller UE identified in the termination request identifies a remote media UE on which a remote media is to be established. Embodiments also allow for the session control to be transferred from a first device to a second device, while maintaining one or more media flows on the first device.

Abstract: A system and method for providing multi-topology support in RSVP-TE in a multi-protocol label switching network is provided. A method includes reserving path states for a traffic engineered label switched path (TE LSP), and releasing the reserved path states. The TE LSP is established within a single network topology in an environment of multiple network topologies, and the reserving path states includes sending a first resource reservation protocol with traffic engineering (RSVP-TE) message containing multi-topology information.

Abstract: In scheduling a packet, latency requirements of the packet is determined. The packet is then scheduled according to its latency requirements. Queues may be assigned latency ranges and packets are assigned to the queues according to those ranges. Within ranges, queues of different priorities may be provided.

Abstract: System and method for support multiple topology in Label Distribution Protocol of Multi-Protocol Label Switching (MPLS) network are disclosed. The system includes a number of network elements and a communication mechanism used to connect the network elements. The network elements discover LDP peers within the network topology, and create and maintain LDP sessions for each of the network topologies. The network elements further establish LSPs by mapping network layer routing information within each network topology to data link layer switches paths. Furthermore, the communication mechanism enables the network elements to advertise the multi-topology capability and exchange the mapping information of label and FECs within each network topology.

Abstract: A system and method is proposed for progressively quantizing channel state information for application in a MIMO (multiple input multiple output) communication system. A method includes computing an estimate of a communications channel between a subscriber unit and a base station, quantizing the estimate with a first codebook, thereby producing a first quantized estimate, quantizing an (n?1)-th quantized estimate with an n-th codebook, thereby producing an n-th quantized estimate, where n is an integer value ranging from 2 to R, R is a total number of quantizations of the estimate, wherein the n-th codebook is a localized codebook. The method also includes incrementing n, repeating the quantizing an (n?1)-th quantized estimate until n=R, and transmitting information based on the R quantized estimates to the base station.

Abstract: A network component comprising at least one processor configured to implement a method comprising transparently snooping a path control message comprising a first path identifier, wherein the path control message is sent between a plurality of routers and is not intended for the network component, analyzing a plurality of frames each comprising a second path identifier, and diverting at least some of the frames away from at least one of the routers, wherein the second path identifier in the diverted frames matches the first path identifier. Included is a method comprising configuring a bypass path by snooping a control frame comprising a label switched path (LSP) identifier, and routing a plurality of data frames associated with the LSP identifier to the bypass path without routing any subsequent control frames associated with the LSP identifier to the bypass path.

Abstract: A system and method for generating an optical return-to-zero signal with frequency chirp. The system includes a bit separator configured to receive an electrical non-return-to-zero signal and generate a first input signal and a second input signal. Additionally, the system includes a first driver configured to receive the first input signal and generate a first driving signal. The first driving signal is proportional to the first input signal in signal strength. Moreover, the system includes a second driver configured to receive the second input signal and generate a second driving signal. The second driving signal is proportional to the second input signal in signal strength. Also, the system includes a light source configured to generate a light, and an electro-optical modulator.

Abstract: A system and method for packing two-dimensional data bursts in a downlink of a wireless communications system is provided. A method includes allocating resource units to users in the wireless communications system, and packing allocated resource units into rectangular bursts for transmission. The allocating is based on delay characteristics of the user and an amount of information to be transmitted to each user.

Abstract: A system and method for channel status information feedback in a wireless communications system is provided. A method includes receiving a transmission containing feedback information from a mobile station (MS) having N total antennas, M receive/transmit antennas, N?M receive-only antennas, wherein N and M are integers and N>M, decoding the received transmission, computing estimates of CSI for channel elements of N?M receive-only antennas using the decoded transmission, computing estimates of CSI for channel elements of M receive/transmit antennas using channel reciprocity, and computing a precoding matrix from the channel elements for the N?M receive-only antennas and the M receive/transmit antennas.

Abstract: A system and method for multi-stage zero forcing beamforming in a wireless communications system is provided. A method includes receiving feedback information from each mobile station (MS) in a first plurality of mobile stations (MSs), selecting a first MS from the first plurality of MSs, and broadcasting information related to the first MS to the first plurality of MSs. The first MS having a largest value of a first metric based on the feedback information received from the first plurality of MSs. The method also includes receiving feedback information from each MS in a second plurality of MSs, selecting a second MS from the second plurality of MSs, and creating a precoding matrix from feedback information from the first MS and the second MS. The second MS having a largest value of a second metric based on the feedback information received from the second plurality of MSs.

Abstract: An optical communication system includes an optical carrier signal source that provides an optical carrier signal and one or more optical modulators coupled to the optical carrier signal source. The optical modulators modulate the optical carrier signal to produce a continuous wave optical signal in response to one or more input electrical signals. The system also includes a pulse modulator coupled to the optical modulators. The pulse modulator adaptively modulates the continuous wave optical signal to cause carrier energy suppression and nonlinearity reduction. In a specific embodiment, the pulse modulator modulates the continuous wave optical signal in response to al pulse signal, which is characterized by an amplitude and a bias point. At least one of the amplitude and the bias point being adaptively determined to cause carrier energy suppression and nonlinearity reduction. Additionally, the system can also include an optical spectral monitor for modulator bias stabilization.

Abstract: A system and method for wirelessly communicating using beamswitching is provided. A communications system includes a high-power signal cable coupled to a signal amplifier, a radio frequency circuit coupled to the high-power signal cable, and a control unit coupled to the radio frequency circuit. The high-power signal cable conveys a transmission signal produced by the signal amplifier. The radio frequency circuit includes a plurality of antennas, a passive network having a plurality of output ports and a plurality of input ports, each output port coupled to an antenna of the plurality of antennas, and a plurality of switches coupled to the high-power signal cable, each switch coupled to an input port in the plurality of input ports. The control unit produces the control signal based on a specified coupling of the high-power signal cable to the passive network.

Abstract: A system for passive alarm propagation and suppression in a communication network is disclosed. The system includes a packet based network including one subset of network providing connectivity to other set(s) of network. The network includes a first edge node and a second edge node; a first customer node connecting to the first edge node and a second customer node connecting to the second edge node; and a replicated alarm suppression table (RAST) residing in the first provider edge node.

Abstract: A system and method for downlink control signal structure for multi-user MIMO is provided. A method comprises selecting a set of mobile stations (MSs) to receive substantially simultaneously transmitted transmissions, and transmitting interference control information and data to each mobile station (MS) in the set of MSs. A number of MSs in the set of MSs is less than a maximum allowable number of simultaneously scheduled MSs, and an amount of interference control information and a type of interference control information transmitted is based on the number of MSs in the set of MSs and the maximum allowable number of simultaneously scheduled MSs.

Abstract: A system and method for scheduling variable bit rate (VBR) streams in a wireless communications system is provided. A method for broadcasting data includes receiving a plurality of broadcast data streams, assigning the broadcast data streams into a plurality of frames, each frame including data from no more than one of the broadcast data streams, re-allocating the plurality of frames, and causing the frames to be broadcast wirelessly. The re-allocating is based on a queue length associated with each of the broadcast data streams and an arrival rate for data of each of the broadcast data streams.

Abstract: System and method for providing wireless communications is provided. Communications are established between a mobile station and a base station, and the mobile station is provided a list of network providers that can be accessed via the base station. The list of network providers may include identifiers of the available network service providers or both identifiers and names of the available network service providers, and may be provided as a result of a broadcast message or in response to a request. The mobile station may further request the realm of a visited network service provider in order to properly decorate an EAP authentication information request. By transmitting a properly decorated EAP authentication request, the mobile station can determine the type of authentication to be performed and provide it to the visited network service provider.

Abstract: A system and method for adaptively controlling feedback information according to a loading condition of a communications cell is provided. A method comprises receiving an indication from a base station, computing an amount of feedback information to transmit back to the base station using the indication, locating a feedback resource assigned to the mobile station using the amount of feedback information and an identity of the mobile station, computing a feedback information, and transmitting the feedback information using the located feedback resource. The indication is for a set of candidate transmission formats that is based on loading conditions in the cell.

Abstract: Methods and system for simplified Protocol for Carrying Authentication for Network Access (sPANA) are disclosed. In the broadband architecture such as Broadband forum or WiMAX forum, a Network Access server (NAS) is one IP hop away from a user. Therefore, it is possible to relax the need in PANA to obtain an IP address prior to authentication. A PANA client (PaC) may use an unspecified IP address (e.g. 0.0.0.0 in TPv4) as a source address for authentication. A PANA Authentication Agent (PAA) may use an IP broadcast address as a network layer destination address (e.g. oxffffffff). The present invention defines PANA Attribute-Value Pairs (AVPs) and procedures that allow a Challenge-Handshake Authentication Protocol (CHAP) exchange to occur in PANA. The PANA CHAP support may facilitate smooth migration from Point-to-Point Protocol (PPP) sessions to IP sessions in a DSL Broadband network environment. The sPANA can be desirably compatible with the PANA.

Abstract: A method and apparatus for dynamically assigning persistent resources in a wireless communications system is provided. A method comprises transmitting a first boundary indication to a mobile station, and transmitting a position indication to the mobile station, wherein the position indication corresponds to a network resource assigned based on a network resource request, the position indication is relative to the first boundary indication. The method also comprises transmitting a second boundary indication to the mobile station in response to detecting a change in a position of a boundary, and transmitting a first transmission to the mobile station using a network resource corresponding to the position indication or receiving a second transmission from the mobile station using a network resource corresponding to the position indication, wherein the position indication is relative to the second boundary indication. The first boundary indication is based on a position of the boundary.