Abstract: A new approach is proposed that contemplates systems and methods to support hardware-based Quality of Service (QoS) operations, which offloads metering functionalities under OpenFlow protocol to a programmable hardware unit/block/component. The hardware unit supports several hardware implemented ports and each port supports multiple configurable queues for the packet flows through a network switch/chip/system. Specifically, the hardware unit includes a plurality of descriptor queues (DQs) configured to accept requests to send a plurality of packets from one or more CPU cores, and a plurality of condition and schedule modules configured to meter, schedule, and condition the packets through a hierarchy of scheduling queues under one or more metering constraints.

Abstract: A system is provided for the optimization of wireless networks and more particularly a system for automatically probing the wireless environment with a large number of waveforms having different characteristics and measuring the wireless environment to ascertain optimal transmission parameters. The probing system utilizes a software defined radio beacon provided with stored parameterized reference waveforms in combination with a software defined diagnostic receiver functioning as a correlating spectrum analyzer for correlating incoming signals with the same parameterized reference waveforms for analysis of the wireless environment to determine optimal transmission parameters for transmitters at various nodes on the network.

Abstract: Disclosed are a wireless communication base station device and a division number determination method that improve the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit.

Abstract: Provided are a method and an apparatus for transmitting downlink control information in a wireless communication system configured with a plurality of serving cells. The method generates downlink control information scheduling frequency division duplex (FDD) cells by means of FDD frames (DCI_FDD) and downlink control information scheduling time division duplex (TDD) cells by means of TDD frames (DCI_TDD), and transmits the DCI_FDD and the DCI_TDD, wherein parts of the fields of DCI_FDD and DCI_TDD are generated to have equal bit sizes, and if the FDD or TDD cell is used exclusively, then said parts of the fields in the FDD and TDD cells have mutually different bit sizes.

Abstract: Methods, apparatuses, a user equipment, a radio network node, and a computer program product for a random access procedure are provided. One of the methods comprises receiving, from a radio network node, a random access response message including a request for channel quality information. The method also comprises transmitting to the radio network node a scheduled transmission message including the requested channel quality information which is used by the radio network node to perform link adaptation for transmission of a contention resolution message. With the methods, apparatuses, user equipment, radio network node, and computer program product, the physical resources unreasonably occupied due to an improper modulation and coding scheme can be saved and may be used by other user equipments during the random access procedure, resulting in more stable cell throughput.

Abstract: Systems and methods related to performing an assignment and a handover in a radio communication network are provided. In one exemplary embodiment, a method performed by a Mobile Switching Center (MSC) of a radio communication network may include seizing resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station Controller (BSC) of the radio communication network.

Abstract: A lossy fabric transmitting device includes a queue, a link transmitter to transmit packets from the queue, a trigger mechanism to automatically discard a packet contained in the queue in response to satisfaction of a packet dropping threshold and a discard counter to track packets being discarded from the queue. The discard counter has a failure detection threshold. The discard counter resets in response to the link transmitter transmitting a packet. Satisfaction of the failure detection threshold identifies the link transmitter as being immediately adjacent a failed link of a lossy fabric.

Abstract: A method for outputting from a device having data communication capability received multimedia data with an adjustable latency comprises the steps of: receiving data packets including the multimedia data and storing the multimedia data in a buffer; measuring at least one characteristic indicative of the input rate of the received data packets; measuring a latency introduced by the buffer; obtaining information indicative of the output rate of the device and determining a target latency for the multimedia data to be outputted based on statistical information derived from the measured at least one characteristic indicative of the input rate and the obtained information indicative of the output rate; adjusting the latency so that it complies with the target latency by modifying the rate at which the multimedia data is outputted or the rate at which the multimedia data is stored in the buffer.

Abstract: A system and method are disclosed for using segment routing (SR) in native IP networks. The method involves receiving a packet. The packet is an IP packet and includes an IP header. The method also involves updating the packet. Updating the packet involves writing information, including a segment routing segment identifier, to the destination address of the packet.

Abstract: Network node and UE, and methods therein for signaling system information, SI, to UEs. The method in the network node comprises transmitting SI to one or more UEs, where the SI comprises multiple alternative sets, where each set assigns different values to one or multiple radio system parameters. The method further comprises determining which set, out of the multiple alternative sets, that should currently be applied for a UE, and transmitting an SI selection signal to the UE, the SI selection signal indicating the determined set, thus enabling the UE to apply currently appropriate radio system parameters also in unfavorable radio conditions. The UE may be an MTC device (Machine Type Communication).

Abstract: Some embodiments of the invention provide a load balancer for distributing packet flows that are addressed to a group of data compute nodes (DCNs) amongst the DCNs of the group. In some embodiments, the load balancer includes a connection data storage comprising several different destination network address translation (DNAT) tables. Each particular DNAT table is defined at a particular instance in time and stores the identity of a plurality DCNs that are part of the group at the particular instance in time. Each time a DCN is added to the group, the load balancer of some embodiments creates a new DNAT table in the connection data storage for processing new packet flows, while using previously created DNAT tables to process packets that are part of previously processed packet flows.

Abstract: Example methods, apparatus, articles of manufacture and systems for providing secondary coverage in a mobile communication system are disclosed. Example methods for a first device to provide secondary coverage in a mobile communication system include transmitting a secondary coverage signal and receiving a presence indication from a second device. Such example methods can also include reporting the presence indication to an access node of the mobile communication system. Such example methods can further include receiving information from the access node to enable relay node functionality in the first device in response to reporting the presence indication to the access node.

Abstract: A method is described that determines that a replacement node device has been connected to a mesh network, the replacement node device corresponding to an original node that has been removed from the mesh network. In response to determining that the replacement node device has been connected to the mesh network, network topology data is accessed that specifies one or more data routing configurations that are each associated with a node device included in the mesh network. From among the one or more data routing configurations specified by the network topology data, a particular data routing configuration is identified that is associated with the original node device that has been removed from the mesh network. Data that specifies the particular data routing configuration that is associated with the original node device that has been removed from the mesh network is provided to the replacement node device.

Abstract: A network verification method may include identifying a data plane including one or more forwarding tables for each switch of a plurality of switches in the data plane. The method may also include generating a forwarding behavior representation of the data plane to represent Boolean combinations of forwarding rules of the one or more forwarding tables of the data plane. Further, the method may include comparing the forwarding behavior representation of the data plane to one or more network properties to detect one or more errors in the data plane.

Abstract: A wireless communication system including: a wireless terminal configured to: establish each of at least one session between the wireless terminal and each of at least one server via a wireless communication with a wireless base station, and transmit each of at least one specified signal for maintaining the established at least one session using a periodic radio resource allocated to the wireless terminal, and a control apparatus including a processor configured to: obtain each of at least one time-out time set for each of the at least one session, determine a resource periodicity of the periodic radio resource based on the shortest time-out time among the at least one time-out time, and determine each of at least one signal periodicity for transmitting each of the at least one specified signal based on the determined resource periodicity.

Abstract: A data communications network for an aircraft includes a first branch for establishing a wireless data connection to a first group of end devices, a primary control unit connected to the first branch, and a backup control unit connected to the first branch. The primary control unit is configured for data transmission to and from the first group of end devices via the first branch. The backup control unit is configured for detecting an operating state of the primary control unit and for taking over data transmission to and from the first group of end devices via the first branch from the primary control unit in case of a failure of the primary control unit.

Abstract: The present invention relates to a method of transmitting a downlink control channel including one or more control channel elements to a terminal by a base station in a wireless communication system. In particular, the method includes: allocating an antenna port of a demodulation-reference signal (DM-RS) to the one or more control channel elements that configure the downlink control channel; and transmitting the downlink control channel to the terminal by using the DM-RS of the allocated antenna port, wherein the antenna port of the DM-RS is determined on the basis of the number of control channel elements per resource block.

Abstract: The present disclosure describes traffic forwarding in a network where a virtual local area network (VLAN) exists in multiple network sites that are geographically dispersed and connected via virtual links. A first edge device (ED) at a first site receives, from a second ED at a second site, information identifying a VLAN of the second ED through a virtual link. The VLAN identified in the information is an active VLAN of the second ED. An association between (i) the VLAN of the second ED and (ii) the virtual link through which the information is received from the second ED is recorded. When forwarding traffic to the VLAN of the second ED, it is determined the virtual link associated with the VLAN of the second ED is determined based on the recorded association and the traffic is forwarded via the determined virtual link.

Abstract: Methods that are performed by a user equipment (UE) and corresponding methods of base stations that allow a UE to determine whether the UE is in a carrier aggregation enabled or disabled state. One exemplary embodiment of a method performed by a UE determines a first artificial value for a first parameter and a second artificial value for a power headroom (PHR) for a secondary component carrier (SCC), the first and second artificial values being substantially low relative to a configuration of the network, generates an artificial report including the first and second artificial values, transmits the artificial report to a primary cell providing a primary component carrier (PCC) and receives an indication that the UE is placed in a carrier aggregation disabled state.

Abstract: A determination apparatus for determining communication availability in an Orthogonal Frequency Division Multiplexing (OFDM) scheme communication system, the determination apparatus includes a reception unit configured to receive a wireless signal including an OFDM symbol in which a pilot signal is inserted at a constant interval in a frequency axis direction, an obtaining unit configured to obtain a discrete sample signal by sampling the wireless signal, a correlation value calculation unit configured to calculate a correlation value of the discrete sample signal for a time shift amount that is defined in advance according to the constant interval, and a determination unit configured to determine the communication availability in the communication system based on at least a result of determination whether the correlation value for the time shift amount has a peak or not.