86results about "Data switching by path configuration" patented technology

An apparatus and method are provided for performing scheduling in a Node B for data transmission of a user equipment (UE) in a mobile communication system supporting an enhanced uplink dedicated channel (E-DCH). The Node B receives, from a radio network controller (RNC), scheduling assistance information for an uplink service to be provided from the UE. The Node B estimates a data amount for the uplink service on the basis of the scheduling assistance information in each scheduling period. The Node B schedules data transmission for the uplink service according to the estimated data amount.

A mobile ad-hoc network (MANET) may include a plurality of nodes for transmitting data therebetween and a policing node. The policing node may detect intrusions into the MANET by monitoring transmissions among the plurality of nodes to detect transmissions during an unauthorized period and generate an intrusion alert based thereon. The policing node may also detect intrusions based upon one or more of integrity check values which do not correspond with respective data packets, usage of non-consecutive media access control (MAC) sequence numbers by a node, and collisions of packet types and/or MAC addresses.

A wireless device uses position-indicating data to determine its location in relation to multi-layered wireless networks that the device may see concurrently. If location information is available, the device employs a user-defined priority table to select the order of user-contracted available networks. If location information is unavailable, the device employs a technology learning table to automatically adapt CAI protocol options (e.g., GSM, cdma2000, IS-136, IEEE 802.11x, etc.) to search for an available network. Information is gathered and stored in databases within the device to allow automatic adaptation to multiple wireless networks. The device provides unique access to each wireless network with which a user has contracted, without the intervention of any “anchor” network. This allows the device to obtain network service no matter what network it is traveling through and allows the user to traverse multiple wireless networks with seamless access to multiple applications and services provided by those networks.

An access server architecture, and methods for use of the architecture to increase the scalability of and balance processor load for a network access server device, are disclosed. In this architecture, packet forwarding and packet processing are distributed amongst cards serving low-speed access lines (i.e., line cards). Thus, as the number of line cards expands, forwarding resources are expanded in at least rough proportion. The NAS route switch controller and the high-speed ports used to access the network are largely relieved of packet processing tasks for traffic passing through the server. The egress port uses a distribution engine that performs the routing lookup for packets received at the high-speed interface, tags the packets with an adjacency table pointer, and sends them to the appropriate forwarding engine for packet processing. The route switch controller, largely uninvolved in the processing of packets, updates routing information needed by each distribution or forwarding engine.

An emergency call (e.g., a 911 call, an alarm company call) forwarded by a telematics call center is routed over the switched PSTN to a Voice Over Internet Protocol (VoIP) call server, where the switched call is converted to a session initiating protocol (SIP) packetized IP call for presentation to an emergency services gateway, which reconverts the call to TDM and connects to a selective router via dedicated circuits, gaining full access to the Enhanced 911 network. This provides a PSAP receiving a call from a telematics call center or other call center with all features available in an Enhanced 911 network, e.g., callback number of the 911 caller, and location of the 911 caller. Location of the caller is provided using a VoIP positioning center (VPC).

Multiple service label types may be used in a given network element to optimize scalability of the data plane, minimize overhead associated with service label management, and allow new services to be offered. Service label management may be done in a dynamic manner so that service labels may be selected for routes in a dynamic fashion as the network changes. VPNs handled by the network element may have different types of service labels, and different routes within a particular VPN may be allocated different service label types. Service label requests may be stored on the data plane to allow a service label request database to be restored from the data plane upon a control plane failure, so that new service labels are not required to be allocated after a control plane failure.

A port adapter for connecting zero or more network interfaces to a host system having a SPI-4 bus is disclosed. The port adapter comprises zero or more network interfaces; a SPI-4 bus coupled to a host system to provide a communication channel between the host and the network interfaces; a control bus coupled to the host system for controlling and monitoring the port adapter; and interface logic that interfaces the SPI-4 bus and the control bus to the network interfaces. Methods are provided for selecting and using one of a small plurality of different packet formats for various networking technologies, so that the port adapter can hide details of the technology that it handles from the host system, and for operating the host system's SPI-4 bus at one of several speeds based on bandwidth requirements of the port adapter.

The invention discloses a WIFI network configuration method. The method comprises the following steps that: an MAC address and a password of a WIFI network access point (AP) are sent to a client by a multi-cast way; the client obtains the MAC address by a package capturing way and the WIFI carries out searching and finds a corresponding SSID; and WIFI network adding is carried out by the password. The password data fill at least one of the last bits of the multi-cast IP address in a segmented mode. According to the invention, intelligent terminals like a mobile phone and a tablet personal computer and the like in the house can be used; and information can be transmitted to equipment supporting WIFI connection by the air stably, conveniently, and rapidly, so that the WIFI equipment can add to the WIFI network stably, conveniently, and rapidly.

An IP multicast communication system includes a layer-2 switch for accommodating a plurality of recipients dynamically joining or not joining a multicast group, a layer-3 switch adapted to a subnet for receiving IP multicast data sent from a sender via an IP network and distributing the received IP multicast data to authorized recipients joining the multicast group via the layer-2 switch under control, and a controller for collectively managing recipient management information for authentication of the recipients obtained according to an Internet Group Management Protocol IGMP. The layer-3 switch authenticates the recipients according to the recipient management information adapted to its subnetwork among the recipient management information collectively managed by the controller. The layer-2 switch stops transmission of the IP multicast data or thins the IP multicast data sent to recipients that are determined to have made unauthorized accesses by the layer-3 switch.

The present invention utilizes specific referential tables for forwarding decisions while maintaining current mechanisms of Ethernet addressing and QoS marking. The referential tables are utilized for forwarding decisions based on any and/or multiple fields within the packets simultaneously, such as, for example, incoming port number, incoming MAC, incoming VLAN, outgoing MAC, outgoing VLAN, P-bits, DSCP, MPLS label, TCP/UDP port numbers, IP, SIP, HTTP, and the like. A user can define the forwarding criteria based on any combination/permutation fields in the packet. Advantageously, the present invention removes the need to introduce explicit tunnel labels in the Ethernet frame in order to maintain the desired QoS within the network removing explicit labeling requirements.

An object of the present invention is to realize packet communication between an IPv6 terminal connected to an IPv6 network and an IPv4 terminal connected to an IPv4 network. Another object of the present invention is to realize RTP communication for establishing sessions in accordance with SIP between an IPv6 terminal connected to an IPv6 network and an IPv4 terminal connected to an IPv4 network. For these objects, the present invention provides an IPv6/IPv4 translator for translating packets between IPv6 and IPv4 with means of translating addresses described in SIP messages into IPv6 addresses or IPv4 addresses. Moreover, the present invention provides the aforementioned IPv6/IPv4 translator with means of translating addresses described in SDP messages into IPv6 addresses or IPv4 addresses. These SDP messages shall be related to media data transmissions. Furthermore, the IPv6/IPv4 translator can be directly connected to a terminal connected to an IPv6 network and to a terminal connected to an IPv4 network, or can be connected via SIP proxy to an SIP terminal connected to an IPv6 network and to an SIP terminal connected to an IPv4 network. According to the present invention, the IPv6/IPv4 translator translates addresses described in SIP messages into IPv6 addresses or IPv4 addresses when translating packets from IPv6 to IPv4 or from IPv4 to IPv6. Therefore, it will be possible to perform communication from a terminal supporting IPv6 only to a terminal supporting IPv4 only. Also, it will be possible to perform communication from a terminal supporting IPv4 only to a terminal supporting IPv6 only. In addition, the IPv6/IPv4 translator translates addresses described in SDP messages into IPv6 addresses or IPv4 addresses when translating packets from IPv6 to IPv4 or from IPv4 to IPv6. Therefore, it will be possible to perform RTP communication for establishing sessions in accordance with SIP from IPv6 to IPv4 or conversely from IPv4 to IPv6, which is suitable for media data transmissions such as IP phone services.

The invention relates to a method, which comprising initiating the establishment of a security association between a client node and a gateway node. User data is obtained from an authentication server and the user is au-thenticated. Authorization is obtained for the user for certain network services from a separate authorization node. An authorized address is provided to the client node. The authorization is checked by the gateway node for the allowing outbound packets to specific destinations.

A method is provided for performing a clear channel assessment in a wireless network. The method involves first listening for channel energy on a wireless channel. Whatever channel energy is heard over the wireless channel is demodulated into non-synchronized in-phase and non-synchronized quadrature phase components. Each of the non-synchronized in-phase and non-synchronized quadrature phase components are squared, and then the non-synchronized in-phase component is multiplied by the non-synchronized quadrature phase component to produce an I−Q product. The sum of the squared non-synchronized in-phase component, the inverse of the squared non-synchronized quadrature component, and double the I−Q product is determined as a clear channel assessment input value. A carrier signal detection function is then performed on the clear channel assessment input value to produce a clear channel assessment output value, which is used to determine whether a signal is present in the wireless channel.

A multicasting system includes a delivery server for multicasting a content via at least one upper router and a plurality of lower routers, a plurality of client devices for playing the content multicast by the delivery server and an upper router controller, a content retrieving unit, and a content playing unit. The client device includes an individual storage unit, a content retrieving unit, a content playing unit, a switch time addition unit, and a display controller. The delivery server includes a content delivery unit for delivering each content to the client device. The upper router controller includes a session information retrieving unit, a book scheduling unit, and a schedule information notifier.

A distributed LSR sends data from a first edge LSR, across a non-MPLS network, to a second edge LSR, thereby enabling a non-MPLS network to interface transparently with MPLS networks. This enables a VPN to use a public network to communicate from one portion of the network to another, remote portion. The distributed LSR includes an ingress gateway logically positioned between the first edge LSR and the non-MPLS network. This ingress gateway receives label requests from the first edge LSR. These label requests are multicast to several egress gateways. At least one egress gateway sends a message back indicating that it can transmit data to the destination. In response, the ingress gateway designates that egress gateway to be a designated gateway. The egress gateway then establishes a tunnel through the non-MPLS network to the ingress gateway.

The invention relates to a method and a system for playing a television program at a mobile terminal and a digital television receiving terminal. The method comprises the following steps that: the mobile terminal establishes communication linkage with the digital television receiving terminal; the terminal mobile transmits a triggering command to the digital television receiving terminal; the digital television receiving terminal receives the triggering command, analyzes the triggering command into a command signal, and executes a corresponding action according to the command signal; and the mobile terminal receives and plays a television live program transmitted by the digital television receiving terminal. The method, the system and the like provided by the invention can transmit the television live program to a mobile phone through a wireless network, such as a WIFI home network, so that the television live program on a set-top box is switched to the mobile phone; and therefore, the television live program on the set-top box can be watched through the mobile phone whenever and wherever possible without wasting the traffic of the mobile phone.

In a layer 2 communication device included in multiple layer 2 networks, an identifying unit identifies a layer 3 control packet from among packets passing through, and an embedding unit embeds routing control information for the layer 2 network in the layer 3 control packet. In a layer 3 communication device connected to the multiple layer 2 networks, a selecting unit selects from the multiple layer 2 networks, an optimum L2 network, that is a layer 2 network forming an optimum communication route, based on a communication destination, and a setting unit sets a packet to be transmitted to the optimum L2 network.

The invention discloses a computer interlocking system DS 6-11, which comprises the following parts: control platform subsystem, interlocking subsystem, input subsystem, output subsystem, monitor subsystem and network communication subsystem to connect each subsystem, wherein the system possesses high reliable industrial control computer and imbedded CPU control system, which applies network communication technique to constitute the distribution-typed control system. The invention realizes self-detecting function for output and input circuit, which reinforces the interference-proof and stability property greatly.

A passive optical network (PON) including an optical line termination (OLT) and a plurality of optical network units (ONUs) which are connected. The optical line termination includes a band setting control section; an upstream control cell receiving section; a use right transmitting section; and a downstream control cell transmitting section. Each of the plurality of optical network units includes a downstream control cell receiving section; a use right acquisition determining section; and an upstream control cell transmitting section.

In a network relay router 10, a multicast routing protocol processing module 11A sequentially sends a join request message (CP1) to a router 30a functioning as a rendezvous point via an interface 101, based on the settings of a multicast group address or destination address and a sender VRF name. The network relay router 10 receives a multicast packet (DP1) from the router 30a via the interface 101 and acquires a sender address or source address of a transmission device SE from the received multicast packet. The network relay router 10 sends a join request message (CP2) via an interface 102 on the side of the transmission device SE and receives a multicast packet via the interface 102. This establishes an optimum multicast route (MR) between the transmission device SE and the network relay router 10.

This invention provides a fault indication technology used to Ethernet optical fiber transceiver. It includes following step: adds the control circuit in the transceiver, the control circuit is used to test and control the working state of Ethernet electrical interface and optical interface. To implement the fault indication, the control circuit connects to the interface circuit of Ethernet through the LINK signal, through connecting SD and TX-DIS with the optical interface circuit of Ethernet, makes real time test to the state of receiving the optical signal in the optical fiber interface and the state of network connection in the RJ45 interface, and reports the working state of the link according to the result of testing. The control circuit implements the report of the fault indication to the remote equipment through controlling the working state of the optical fiber sending circuit.

In a network that roughly comprises a temporary master station and a plurality of slave stations and is an adhoc network, which can be immediately constructed in situ, and is a temporary master station interposition-type network in which a temporary master station is present, the temporary master station receives and judges an interference detection packet sent from the slave station. By virtue of this construction, an asynchronous interference avoiding method and an asynchronous interference avoiding system can be realized which can reliably avoid interference.

The method is capable of calculating shortest path to meet need of protecting SDH/SONET. The method includes following steps. Collecting attributive information of links connected to each node directly obtains serial numbers of protection entities that each link belongs to. According to standard flood of protocol, collected information is diffused to other nodes. Based on serial numbers of protection entities that each link belongs to, each node is recombined so as to form topological structure of each protection entity in whole network and attributive information of relevant links. Calculation of constraint paths in transmission network is carried out. Based on proper protection types of transmission network, the invention calculates shortest path to meet constraint condition. Since protection topology is calculated in advance, thus the invention reduces numbers of repeated calculation effectively so as to calculate constrained path in real time.