Abstract: For logical multicasting in overlay networks, at a data processing system, an original unicast packet is received from a first component in a first computing node in an overlay network. To cause multicasting in the overlay network the received original unicast packet was unicast by the first computing node only to the data processing system, and a multicast data structure for the overlay network is maintained only by the data processing system, the multicast data structure containing information of each receiver that is configured to receive unicast packets during logical multicasting in the overlay network. From a set of subscriber receivers in the multicast data structure, a subset of the subscriber receivers is selected. A copy of the original unicast packet is unicast to each subscriber receiver in the subset.

Abstract: The present invention discloses a digital signal processor, including: a signal generation unit, configured to generate a first digital signal and a second digital signal; a first modulation unit, configured to modulate the first digital signal to obtain a third digital signal; a second modulation unit, configured to modulate the second digital signal to obtain a fourth digital signal; a first phase shifting unit, configured to perform phase shifting on the third digital signal, to output the third digital signal and a fifth digital signal; a second phase shifting unit, configured to perform phase shifting on the fourth digital signal, to output the fourth digital signal and a sixth digital signal; an adder, configured to calculate a sum of the third digital signal and the fourth digital signal, to obtain a seventh digital signal; and a subtractor, configured to subtract the sixth digital signal from the fifth digital signal.

Abstract: Provided are a method and an apparatus for transmitting a maximum stratum level in a wireless communication system. An evolved NodeB (eNB) or a home eNB (HeNB) having a global positioning system (GPS) constitutes a maximum stratum level indicating a maximum value of a hop capable of supporting radio interface based synchronization (RIBS) and transmits the constituted maximum stratum level to a small cell. Meanwhile, the small cell determines whether a stratum level is greater than the maximum stratum level, and transmits the maximum stratum level to the eNB or the HeNB having the GPS when the stratum level is greater than the maximum stratum level.

Abstract: The described technology provides front-end antenna architecture for wireless communication that manages multiple frequency sub-bands in a manner that results in a low insertion loss rate. Further, the components of the architecture are smaller than typical wireless communication antenna architectures, and therefore the described architecture can be accommodated in a smaller area than typical architectures without a decrease in efficiency. A matching circuit is communicatively connected to each frequency sub-band's respective signal path. When two or more sub-bands are requested for high-speed wireless communication, the matching circuits match the impedance of each sub-band with one-another. Matching the impedance allows two or more sub-bands to be used to wirelessly communicate while maintaining high efficiency. The matching circuits are disabled when only one sub-band is needed for wireless communication.

Abstract: Methods are provided to prevent a potential conflict among first and second instances of SON functions. A first input impact time, first input scope and first objective of the first instance, and a second input impact time, second input scope and second objective of the second instance are obtained. If there is a first overlap among the first input impact time and the second input impact time, whether there is a second overlap among the first input scope and the second input scope is determined. If there is the second overlap, whether the first objective and the second objective are the same or substantially the same is determined. If so, it is determined that the potential conflict exists. If there is the second overlap, whether the first objective contradicts or substantially contradicts with the second objective is determined. If so, it is determined that the potential conflict exists.

Abstract: Systems and methods are described herein relating to building and using one or more databases storing position-pair-dependent and/or node-dependent interference related information in a cellular communications system. In some embodiments, a method of operation of a node associated with one or more cellular communications networks includes obtaining position-pair-dependent interference related information for pairs of positions. The position-pair-dependent interference related information includes, for each pair of positions including a first position and a second position, information regarding interference caused by wireless transmissions originating at the first position to wireless receptions at the second position. The method further includes storing interference related information including the position-pair-dependent interference related information in one or more databases and providing access to the one or more databases.

Abstract: The present invention provides a UE, a method for an aperiodic SRS in a base station and a device. For a problem of a scheduling restriction of a traditional A-SRS in unlicensed spectrum communication, the present disclosure provides the method and apparatus for the A-SRS, wherein physical-layer signaling is used to indicate a sending frequency band of an SRS to implement flexible scheduling of the aperiodic SRS. As an embodiment, the number of antenna ports of the A-SRS is configured by high-layer signaling identified by a logical cell index. A physical resource occupied by the aperiodic SRS is configured by high-layer signaling identified by a carrier index. The logical cell index at different frameworks may correspond to different physical carriers.

Abstract: Embodiments of the present application provide an antenna line device management method, and devices. A primary device sends a scanning command to an antenna line device, where the scanning command is used to scan the antenna line device; receives a scanning response sent by the antenna line device, where the scanning response includes indication information used to indicate a type of the antenna line device, and the type of the antenna line device is a container antenna line device; sends an HDLC address assignment command to the antenna line device, where the HDLC address assignment command includes an HDLC address assigned by the primary device to the antenna line device; establishes a communication link to the antenna line device according to the HDLC address; sends a capability information query command to the antenna line device; and receives a capability information report sent by the antenna line device.

Abstract: A data processing method and apparatus are presented, which relate to the communications field and are helpful in improving flexibility and expanding application scenarios. A first physical layer coding data block flow and a second physical layer coding data block flow are received; a first data flow is obtained according to the first physical layer coding data block flow and the second physical layer coding data block flow; multiple subframe headers are generated; a second data flow is obtained according to the first data flow and the multiple subframe headers; and data blocks in the second data flow are distributed to a first physical medium dependent (PMD) sublayer circuit and to a second PMD sublayer circuit, so as to obtain a first PMD sublayer data flow and a second PMD sublayer data flow. The data processing method and apparatus are used for data processing.

Abstract: A mobility management entity (MME) in a data communication system to facilitate reselection of optimal network elements for a wireless communication device traversing MME regional boundaries comprises a communication transceiver and a processing system. The communication transceiver is configured to receive a context transfer associated with the wireless communication device transmitted from an old MME that previously served the wireless communication device, and receive a tracking area update transmitted from the wireless communication device. The processing system is configured to, in response to the tracking area update, determine whether or not to select a new serving gateway for the wireless communication device, and upon determining to select the new serving gateway for the wireless communication device, direct the communication transceiver to transfer a reattach instruction for delivery to the wireless communication device.

Abstract: A receiver and method for estimating an available bandwidth of a data channel streaming video data are provided. In one embodiment, the receiver includes: (1) a physical interface configured to receive the video data from a network, (2) a packet memory configured to store frames of the video data, (3) a dispersed packet time calculator configured to calculate a total time for one of the frames to go through the data channel, and (4) a bandwidth estimator configured to determine the available bandwidth of the data channel based on a number of data units received for the one frame and the total time.

Abstract: A wireless access point (AP) includes multiple transmit antennas and circuitry. The circuitry is configured to transmit multiple sounding frames to a receiver that includes one or more receive antennas, the sounding frames are transmitted via respective different partial subgroups of the transmit antennas, to receive from the receiver feedback information that specifies for each of the sounding frames a respective channel between the transmit antennas in the respective partial subgroup and the receive antennas, and, to determine a steering matrix based on the feedback information, and transmit to at least the receiver via at least some of the transmit antennas using the steering matrix.

Abstract: Provided are a mobile evolve packet core (EPC) and a paging method using the same. The mobile EPC includes: a mobile EPC server providing an environment for operating a set of virtual machines (VMs), each of the virtual machines serving as a functional entity of a core network of a mobile communication system; a transmission module transmitting/receiving between the mobile EPC server and components of the mobile communication system or between the mobile EPC server and another mobile EPC server; and a mobile means with the mobile EPC server and the transmission module and providing mobility, wherein the mobile EPC moves to a disaster area to form a public safety network (PSN).

Abstract: A MAC design for Ku-band mobile wireless mesh network with multi-beam smart antennas is disclosed. This MAC includes an overlay control that separates the collision domain. It also has lower layer CSMA-like scheme. The disclosed design includes an enhanced PCF and an enhanced DCF for two purposes: (1) exploiting multi-beam concurrent communication capability (2) supporting QoS and mission-based communications. An efficient time synchronization scheme is also disclosed to ensure all beams can concurrently send data to the star node. Finally, ARMA or HMM based prediction schemes are disclosed to predict future traffic profile in each beam. This helps the star node to better prepare the queue content and schedule information.

Abstract: A method and a system for managing flat and routed clients in a cluster using single virtual IP (VIP) are provided herein. The method includes broadcasting an ARP request from a client to a cluster of nodes; monitoring the broadcasted ARP request at one of the nodes and ignoring the ARP request at all other nodes; in a case that the monitored ARP requests is associated with a different target VIP for same client IP, determining the client associated with the ARP request as a routed client, otherwise the client is determined as a flat client; applying at least one load balancing logic for assigning one of the nodes to the client associated with the ARP request, wherein both flat clients and routed clients are treated as independent clients counted separately; and notifying the client associated with the ARP of a MAC address of the assigned node.

Abstract: A pre-5th-Generation (5G) or 5G communication system is provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Further, a simultaneous transmission avoidance method and apparatus of a terminal is provided for use in a wireless communication system supporting the dual connectivity. The Buffer Status Report (BSR) method of a terminal connected to a first and a second base station in a wireless communication system supporting a dual connectivity according to the present disclosure includes receiving an uplink resource allocation information from the first base station, generating an uplink allocation map information of the first base station based on the uplink resource allocation information, and transmitting, when BSR for the second base station is triggered, the uplink allocation map information of the first base station and the BSR for the second base station to the second base station.

Abstract: The present disclosure describes several key features of an agent deployable on a service appliance: agent architecture/design, transport and channel abstractions of the agent, new message definition components, channel switching (e.g., platform independent processing), Channel state machine, platform dependent hooks (e.g., memory, timers), Service key data store, and Secure channel infrastructure. Many of these features alleviate the vendor of the service appliance from having to provide the features. The features and standardization thereof enable the system to be more robust (and increases code quality). Speed of integration is decreased while the risk of integration issues is also decreased. Updates to the agent can be deployed in a controlled and efficient manner. Furthermore, the agent can ensure security between a switch and the agent.

Abstract: Some embodiments provide a method for implementing a logical router in a logical network. In some embodiments, the method receives a configuration of a static route for the logical router, which includes several routing components with separate routing tables. The method identifies which of the routing components require addition of a route to a corresponding routing table to implement the configuration of the static route. The method adds the routes to the corresponding separate routing tables of the identified routing components.

Abstract: This invention provides a relay precoder selection method for two-way amplify-and-forward multiple-input multiple-output (MIMO) relay systems and communication devices using the selection method or the selected relay precoder. According to the relationship between a relay precoder and the singular values of the effective MIMO channels, a set of candidate relay precoders are constructed based on the singular vector subspaces of cascaded MIMO channels, and one of them is selected for meeting a specific design criterion, such as the minimum sum of mean-squared errors, the maximum sum of channel capacities, and the minimum or maximum sum of condition numbers, where the condition number is defined as the ratio of the largest to the smallest singular value of a MIMO channel. As compared with the iterative design methods with the best performance, this invention achieves close performance while requiring much lower computational complexity.

Abstract: Example implementations relate to a radio interrupt reboot. For example, an apparatus may include a first processing resource connected via an interface to a second processing resource. The first processing resource may execute instructions to receive an interrupt generated by a radio coupled to the second processing resource, increment a counter in response to receiving the interrupt during a configurable time interval, and determine that the counter has not been incremented during a threshold number of configurable time intervals. The first processing resource may execute instructions to reboot the first processing resource and the second processing resource in response to the determination that the counter has not been incremented during the threshold number of configurable time intervals.