45 results about "Admission controller" patented technology

The present invention is directed to a call admission controller that is operable to: (a) determine at least one of (i) a bandwidth utilization level for a first path including a first link; (ii) an available bandwidth level for the first path; and (iii) one or more Quality of Service or QoS metrics for the first path; (b) compare the at least one of (i) a bandwidth utilization level; (ii) an available bandwidth level; and (iii) one or more Quality of Service or QoS metrics to one or more selected thresholds to determine whether a new live voice communication may be set up with a first selected codec; and (iii) when a new live voice communication may not be set up with the first selected codec, perform at least one of the following operations: (i) select a second different codec from among a plurality of possible codecs for the new live voice communication, wherein the second codec has a lower bit rate than the first codec; (ii) change an existing live voice communication from the first codec to the second codec; and (iii) redirect the new live voice communication from the first path to a second different path, wherein the second path does not include the first link.

A configurable edge device for use in a network, the edge device being adapted and configured to be coupled to at least one other edge device in a network, and including an admission controller for controlling admission of data traffic onto a pre-defined flow over a physical link, and a router for routing the data traffic through the edge device onto the pre-defined flow in accordance with a pre-defined routing scheme, wherein operation of the admission controller and the router is controlled in accordance with data defining all physical and logical links in the network; a telecommunications carrier network for data traffic, the network including at least two such configurable edge devices, and a method for transmitting data traffic through such an edge device.

An admission controller and its method of operation for controlling admission of data flows into an aggregate data flow are described. Admitted data flows are aggregated into an aggregate data flow for transmission by a router, for example, over a data network. The aggregate data flow typically follows a pre-established path through the network; for example a multi-protocol label switched (MPLS) path. The path has minimum and maximum bandwidth limits assigned to it. The admission controller controls admission of new data flows into the aggregate data flow by granting or denying new session requests for the new data flows. Congestion notifications received from the network and bandwidth limits of the path are considered in determining whether to grant or deny a new session request. In this way, the admission controller provides elastic sharing of network bandwidth among data flows without exacerbating network congestion and while remaining within the path's bandwidth limits. The data flows may include transaction oriented traffic.

Method and apparatus for service level agreement formation and management is described. More particularly, a service level agreement (SLA) manager is described. This SLA manager comprises an admission controller, a specification module and a performance measurement module. Such SLA manager is interposed between one or more client computer systems and a service provider computer system.

Admission to one or more shared resources in a wireless network is based on whether such admission would unduly comprise the network's ability to meet one or more Quality-of-Sevice (QoS) constraints associated with users of the shared resources. Therefore, use of a resource, such as the shared use of a high-speed packet data channel, may be scheduled for current and newly admitted users in consideration of the QoS constraints associated with those users. By evaluating the QoS penalty that would be incurred with the admission of a prospective new user, an admission controller determines whether such admission would unduly comprise an associated resource scheduler's ability to meet the QoS constraints associated with user's of the shared resource. Thus, new users are admitted or blocked based on the penalty incurred. Users may be preferentially admitted by tolerating higher penalties for some users, such as those in a preferred user class.

A method and apparatus is disclosed herein for data center automation. In one embodiment, a virtualized data center architecture comprises: a buffer to receive a plurality of requests from a plurality of applications; a plurality of physical servers, wherein each server of the plurality of servers having one or more server resources allocable to one or more virtual machines on said each server, wherein each virtual machine handles requests for a different one of a plurality of applications, and local resource managers each running on said each server to generate resource allocation decisions to allocate the one or more resources to the one or more virtual machines running on said each server; a router communicably coupled to the plurality of servers to control routing of each of the plurality of requests to an individual server in the plurality of servers; an admission controller to determine whether to admit the plurality of requests into the buffer, and a central resource manager to determine which server of the plurality of servers are active, wherein decisions of the central resource manager depends on backlog information per application at each of the plurality of servers and the router.

A method for video-on-demand (VoD) admission control at a network edge assigns to a triple-play network virtual topology lesser resources than there exists in a corresponding underlying physical link bandwidth. This prevents video-on-demand (VoD) starvation of data-class traffic. At least one policy enforcement point (PEP) is attached to an edge of the network, providing for autonomous short-term, application-aware controls to be applied to corresponding network ingress traffic, and also providing for long-term controls on corresponding network ingress traffic. The network ingress traffic to the network comes under management when the traffic nears or exceeds network capacity. It is enabled to do so by computations of current network routing topology and bandwidth reservations. Path tables are used to calculate if a PEP may admit more, or must shed, sessions/calls to maintain service for other existing application traffic. The PEP and a session/call admission controller (S/CAC) may be independently located within the topology of the network, and together implement admission controls that differentiate between triple-play video, voice, and data traffic classes.

An advanced bandwidth manager (ABM) comprises a session/call admission controller (S/CAC) to manage network ingress traffic when a packet-switched network nears or exceeds its capacity due to changes in the network, e.g., component failures or incremental growth. Ever-changing network topology information is gathered from remote listeners about how traffic is being routed through various parts of the network. These reports are harmonized to build a single view of the network topology, and the point-to-point connections are abstracted into path tables. Autonomous policy enforcement points (PEP's) provide short-term, application-aware controls on their own that are applied to the corresponding network ingress traffic. The S/CAC uses the path tables constructed to calculate whether the PEP's can admit more or should shed sessions/calls to keep service up for all existing application traffic. Long-term controls are periodically downloaded as admission tables from the S/CAC to the PEP's.

The invention discloses an admission control method. The method comprises the following steps: receiving a request message for requesting admission of a service in the current admission control period; judging the type of service for admission which is requested by the request message; admitting non-real-time service of the request in case the type of the requested service for admission is of non-real-time service; determining admission priority of the requested real-time service in case the type of the requested service for admission is of real-time service; judging whether real-time service resources are available for the request based on the determined admission priority; and admitting the requested real-time service when a judgment result is that the real-time service resources are available for the request. Correspondingly, the invention further discloses an admission controller, a method for allocating resources for a real-time service and a device thereof, as well as a method for determining priority of resource allocation and a device thereof. The proposal can help meet various new requirements brought forward by next generation wireless communication system for admission control.

A method for determining admittance to a negotiation comprises the steps of: defining admittance criteria from a superset of parameters; at least one potential negotiation participant making an admittance request to an admittance controller, which admittance request includes a set of information relating to the superset of parameters and forming a subset thereof; and the admittance controller determining whether the admittance request satisfies the admittance criteria.

The invention discloses a control method for real time task admission for shared resource network. The invention is to provide a control method for network admitting real time task so that the admission is not only performed but satisfy the demand for time limit. The technical scheme: first establishing real time task admission controller for network composed of resource status statistical analysis module, real time task application pretreatment module, real time judging module and admission and decision-making module. The resource status statistical analysis module gathers, calculates and analyzes the network resource status; the real time task application pretreatment module pretreats the real time task application; the real time task judging module judges necessary and sufficient condition of executable task; if several window time periods satisfies necessary and sufficient condition, then window time period of maximum executable probability is selected; the admission and decision-making module makes decision for real time task and forms notice for admission or not. The invention can performs network admission control for real time task.

A wait-time acquisition unit measures a wait time before transmission of data in an exposed terminal, and an interference-amount inferring unit infers the amount of interference in the exposed terminal based on the wait-time information. A channel-utilization calculation unit calculates an amount of channel utilization based on the inferred amount of interference. A call admission controller controls call admission based on the amount of channel utilization that is considered with the amount of interference in the exposed terminal.

A method for managing a call admission controller in a multi-hop wireless backhaul network is illustrated. The method provides a call access control mechanism in a multi-hop wireless backhaul network system by calculating at least one service quality parameter in the network and determining if service data transmitted from relay nodes is allowed to enter a gateway of the network according to the at least one service quality parameter. In exemplary embodiments of present invention, the service quality parameter includes a throughput, an average delay of packets, a number of remote devices, a packet loss rate, a number of the relay nodes, and an amount of service data of a specific class traffic in the network. A topology of the network may be a ring, a chain, or a tree topology, and a ripple protocol is utilized as media access control protocol in the network.

An auditing function detects and corrects reservation and routing topology map errors by monitoring the operation of an advanced bandwidth manager (ABM). A session/call admission controller (S/CAC) attached to a network manages loading with policy enforcement points (PEP's) when the network nears or exceeds its capacity. Ever-changing network topology information is monitored, modeled, and analyzed from remote listeners. A correct model of how traffic is being routed through various parts of the network is critical to admission control. The PEP's at the network edges provide short-term, application-aware controls on their own that are applied to the corresponding network ingress traffic. The S/CAC uses the path tables to calculate whether particular PEP's can admit more traffic, or should they shed sessions/calls to keep service up for the existing application traffic. Long-term controls are periodically downloaded as admission tables from the S/CAC to the PEP's.

The invention relates to the field of medical diagnosis, in particular to a system for predicting the mortality risk after myocardial infarction. The system comprises an admission controller, a serumcreatinine detection component, a blood sugar detection component, a sample information receiving function module, an assignment module, a risk calculating module and a report system main interface, wherein the risk calculating module receives assigned values from the assignment module, and calculates according to a total score of the assigned values to obtain the mortality risk after the myocardial infarction. The system is easy to operate, and an assessment result is intuitively displayed; after adoption of the system provided by the invention, reasonable risk detection can be accurately andrapidly performed among a female cardiovascular disease population and individualized precise treatment strategies are guided, so that the system has an important clinical application value.

The invention relates to wireless broadband user equipment and a communication system and method. The wireless broadband user equipment comprises a quality controller, a resolution unit and an admission controller; the quality controller is used for sending out a quality request instruct to a base station according to a request transmitting a multimedia streaming; the resolution unit is used for resolving out at least one control signaling from a control signal sent during communication; no control signaling is sent out before a response of the base station on the quality request instruct is not received by the admission controller, the delayed control signal is sent out by the admission controller when the response of the base station is received and a bandwidth service required by the multimedia streaming can be provided by the base station, and information for establishing the multimedia streaming is rejected by the admission controller when the bandwidth service required by the multimedia streaming cannot be provided by the base station. The invention also provides a communication system and method applied between the wireless broadband user equipment and the base station. By combining an admission control on network end service quality, a stable and reliable quality service is provided.