Abstract: A system and method for generating and transmitting emergency messages and for maintaining real-time emergency communications sessions between users and emergency dispatch centers. A system receives data transmitted from a user device and constructs an emergency message related to a specific type of emergency scenario as well as the location, meta-data and background information of the user. The generated emergency message is transmitted via a communications network and delivered to an appropriate emergency dispatch center. The method enables the user to deliver a detailed request for help regardless of his or her location or, in another instance, delivers the basic emergency response related information for the user. The generated emergency message is universally compatible with emergency communications center infrastructure so long as the communications centers possess basic voice call equipment.

Abstract: The method relates to the monitoring of at least one routing parameter for a cluster including nodes and switches, static communication links connecting nodes and switches. Each switch includes several output ports. After having selected at least one switch, a number of routes per port is calculated for each port of each switch selected, routes being defined during a routing step for each connecting one node to another. A mean number of routes per port is then calculated for the at least one selected switch. Each number of routes per port calculated is then compared with the mean number of routes per port calculated and, in response to this comparison, a potential imbalance of routing of the cluster is notified.

Abstract: To handle different Quality of Service (QoS) requirements, there may be a need for supporting multiple parallel data paths to exchange data between two or more peer entities of a data communication system. Each data path between the peer entities may be characterized by various QoS parameters such as priority, delay, jitter, data rate, etc. A communication system may allocate transmission resources for each data path based on the QoS parameters associated with them. Since the allocated transmission resources may not be always sufficient to send all the pending data from an application, the data packets may be segmented or packed depending on the available transmission resources. In such a case, doing segmentation may lead to inefficient usage of the transmission resources. A method and apparatus are disclosed that avoid such segmentation and allocates the transmission resources to the other active data paths which can better utilize the transmission resources.

Abstract: Systems and methods are directed to use of a neighbor list for wireless indoor navigation. The neighbor list may include related information regarding all neighboring access points (APs). The neighbor list can be transmitted, at least partially, to include the related information of a desired number of or all APs in the neighbor list from one AP to a wireless device. The neighbor list can be transmitted in a Neighbor Report Response (NRR) or a time-of-flight (ToF) Response and allow the wireless device to scan for minimal number of APs for ToF measurements. By using the neighbor list, power consumption and time can be significantly reduced during wireless indoor navigation.

Abstract: Systems and methods are directed to use of a neighbor list for wireless indoor navigation. The neighbor list may include related information regarding all neighboring access points (APs). The neighbor list can be transmitted, at least partially, to include the related information of a desired number of or all APs in the neighbor list from one AP to a wireless device. The neighbor list can be transmitted in a Neighbor Report Response (NRR) or a time-of-flight (ToF) Response and allow the wireless device to scan for minimal number of APs for ToF measurements. By using the neighbor list, power consumption and time can be significantly reduced during wireless indoor navigation.

Abstract: A method for seamlessly and automatically updating an access point or router. The method includes receiving an update for the access point and determining a status of a network traffic associated with the access point. The method further includes determining an update time for applying the update based on the determined status of the network traffic and applying the update to the access point at the determined update time. An access point receives an update for the access point, and waits for a time to apply the update. The access point waits until there is no interactive traffic in which a user is actively using the network. The access point applies the update and reboots. By waiting until there is no interactive traffic, the update process mitigates interruptions to the user's active use of the network.

Abstract: A network system for allocating service nodes to a user terminal to login a network may comprises a gateway node, a plurality of service nodes, a sampling terminal, a gateway node, and a login node. The system may receive service nodes information of the plurality of service nodes from the sampling terminal; obtain from the sampling terminal network quality sampling data associating with each of the plurality of service nodes; identify the gateway node corresponding to the sampling terminal; select a plurality of candidate service nodes from the plurality of service nodes based on the network quality sampling data; obtain network quality parameters between each of the plurality of candidate service node and the gateway node; select a target service node from the plurality of candidate service nodes based on the network quality sampling data and the candidate node network quality parameters; and allocate the target service node to the gateway node.

Abstract: At least some reference symbols dedicated to a particular communication device are transmitted in resource blocks allocated to other devices. This way, reference symbol assignments are not unduly restricted by other constraints placed on the boundary elements of a resource block. According to an embodiment, data and reference signals are transmitted by transmitting a resource block allocated to a first communication device. The resource block includes a plurality of resource elements, each resource element corresponding to a modulation symbol. At least one reference symbol associated with the resource block and dedicated to the first communication device is transmitted in a resource block allocated to a second communication device. On the receive side, the communication device can perform channel estimation based on reference symbols dedicated to the device that are transmitted in resource blocks allocated to the device and in resource block(s) allocated to other communication device(s).

Abstract: A device may include two or more line interfaces. One of the line interfaces may include a component to buffer a packet that is received at the line interface, perform a lookup of information related to selecting a flow based on a header of the packet, apply a symmetric hash function to addresses in the header to obtain a hash when the information related to selecting the flow indicates the flow is to be selected based on a random method, compare the hash to a particular number using the information related to selecting the flow, the particular number being same for the line interfaces, sample a flow when the hash matches the particular number, create a flow record for the flow, and sample packets based on the flow record.

Abstract: A system for packetizing parallel image data for serial transmission includes a software element configured to receive a bitmap image file comprising R, G and B pixel data, receive information relating to display and timing information associated with a device under test, receive a vertical synchronization signal, and receive at least one horizontal synchronization signal, packetize the vertical synchronization signal, wait a period of time before packetizing the horizontal synchronization signal, and packetize the R, G, and B pixel data associated with the bitmap image file to form a parallel packet stream. The system also includes a hardware element comprising a parallel data sequencer comprising a memory, the memory configured to store the parallel packet stream, a parallel-to-serial converter configured to convert the parallel packet stream into a serial packet stream, and a serial line driver configured to transfer the serial packet stream to a device under test.

Abstract: A communication apparatus transmits a request message to connectable relay apparatuses, and receives a response message from the relay apparatuses. The communication apparatus determines whether the received request message includes the device identification data of a relay apparatus to which it is currently connected. If no received response message includes the device identification data of a relay apparatus to which it is currently connected, the communication apparatus requests another relay apparatus identified based on device identification data that is included in any of the received response messages to make a connection with the communication apparatus.

Abstract: In a mesh network having a plurality of wireless nodes, including a first, second, third and fourth node, wherein each node includes a routing table, a method of route discovery. A first route request message is broadcasted from the first node and received at the second and third nodes. In the second node, a link quality metric is calculated as a function of link quality of the link to the first node and as a function of capacity in the routing table of the second node. In the third node, a link quality metric is calculated as a function of link quality of the link to the first node and as a function of capacity in the routing table of the third node. A second route request message is broadcasted from the second node and received by the fourth node, wherein the second route request message includes the link quality metric calculated by the second node.

Abstract: A packet trace is received. Inter-arrival times between the multiple packets in the packet trace are determined. An inter-arrival time in the inter-arrival times that is greater than a threshold is identified. An order number of the inter-arrival time is identified. A determination is made as to whether a size of each of at least a portion of the multiple packets is equal to a maximum segment size. When a determination is made that the size of each of at least a portion of the multiple packets is equal to the maximum segment size, a size of the ICW as a product of the order number and the maximum segment size is returned.

Abstract: Effective control of communications traffic, even under fast-changing DDoS attacks, might be performed by (a) determining parameters of a leaky bucket using nominal communications traffic, (b) applying current communications traffic to the leaky bucket, (c) observing overflows, if any, of the leaky bucket, (d) scoring the current traffic based on the observed overflows, and (e) passing or dropping traffic based on the score. Alternatively, such control might be performed by (a) determining average mean and variance of each of one or more attribute values of nominal communications traffic, (b) determining a mean of each of the one or more attribute values of current communications traffic, (c) determining a probability that for each of the one or more attributes, its current mean value deviates more from its average mean that its current attribute value, (d) scoring the current traffic based on the determined probability or probabilities, and (e) passing or dropping traffic based on the score.

Abstract: Techniques are provided for re-mapping and interleaving transport packets of multiple transport streams for processing by a single transport demultiplexor. At least one PID re-map table is employed having re-map values indexed by n possible PID values of transport packets associated with at one transport stream of the multiple transport streams. The n possible PID values is less than or equal to the number of PID values which can be handled by the single transport demultiplexor, and is less than all possible PID values of transport packets within the multiple transport streams. The PID values within at least one transport stream are compared with the n possible PID values of the PID re-map table, and when a match is found, the table is indexed using the matching entry and a re-map value is generated therefrom. The re-map value replaces the original PID value within the transport packet.

Abstract: The digital data stream (e.g. ATM cell stream) replicating device features an input port for receiving a continuous digital data stream at an input transmission rate; a broadcast mechanism for replicating the input digital data stream N times; N output ports for transmitting each such replicated digital data stream through a separate output port at an output transmission rate at least equal to the input transmission rate; and a delay mechanism for introducing a relative delay for each said output digital data stream with respect to the input digital data stream such that the output streams are identical but out of phase with one another. Use of such a device enables a multi-port digital data communications device such as an ATM network switch to be tested using only one (expensive) performance test generator while still respecting the statistical multiplexing advantages of the multi-port digital data communications device.