Abstract: Disclosed are a method for transmitting and receiving a synchronization signal in a wireless communication system supporting NarrowBand-Internet of Things (NB-IoT) and an apparatus therefor. Specifically, the method for transmitting and receiving a synchronization signal may include: receiving, from a base station, a narrowband synchronization signal; and performing a cell search procedure for the base station based on the narrowband synchronization signal, in which the narrowband synchronization signal may include a narrowband primary synchronization signal and a narrowband secondary synchronization signal, the narrowband primary synchronization signal and the narrowband secondary synchronization signal may be transmitted in different subframe, and the subframe in which the narrowband secondary synchronization signal is transmitted may be configured differently according to a type of a radio frame structure.

Abstract: Various embodiments disclosed herein provide for a tower outage impact predictor that can determine the service impact on an end user during a cellular tower outage. Radio signal profiling divides an area into grids, and then constructs a radio signal profile for each grid based on user equipment (UE) measurement data for each grid. The number of UEs in each grid is then determined, and then the number of UEs that lose service for a simulated cellular tower outage is determined. Based on the impact analysis, a more resilient backhaul network can be implemented by determining backhaul rehoming changes that optimally home cellular towers to various backhaul network devices.

Abstract: A method includes intercepting a first data packet being transmitted from a domain name system (DNS) server to a first client device, the first data packet being a DNS response, extracting a first internet protocol (IP) address and a first hostname from the first data packet, and storing the first IP address and the first hostname in a first entry of an identification table.

Abstract: A physical resource block PRB grid indication method and a device are disclosed. The method includes: receiving, by a terminal device, location information sent by a network device, where the location information is used to indicate a relative location relationship between a first predetermined location in a synchronization signal block PRB grid and any PRB in a system common PRB grid with a first subcarrier spacing; and determining, by the terminal device, a second predetermined location of the any PRB based on the first predetermined location and the location information.

Abstract: The present invention relates to a network packet broker device including a deep packet matching module which controls a GTP correlation module to match a GTP control plane packet and a GTP user plane packet and a deep packet matching method thereof. Packet information in a deep stage at a switch level is extracted to match flows of the GTP control plane packet and the GTP user plane packet and a correlation may be assigned to forward the GTP control plane packet and the GTP user plane packet to the same egress port.

Abstract: A system and method for bandwidth management by controlling the bit rate of a signal stream in real time according to available link bandwidth. Applications include multiple-channel video data streams over a limited-bandwidth link such as a Digital Subscriber Line. A video signal is transrated at the head end to multiple streams having different bit rates, by a multirating device which sends the multiple streams over a network, along with metadata containing information about the data structure and parameters of the streams. At the network access edge, a demultirating device uses the metadata to select the stream with the highest video quality whose bit rate does not exceed the available bandwidth of the end-user's access link. This scheme provides multiple unicast signals to different end-users in place of a single multicast signal, supports multiple high-definition channels over a limited bandwidth link, and is compatible with standard encryption methods.

Abstract: According to one embodiment of the present invention, suggested art a method for reporting a power headroom report (hereinafter, PHR) of a terminal and an apparatus of the terminal, the method comprising the steps of: determining whether the terminal is operated in dynamic time division multiple access (hereinafter, TDD, time division duplexer) mode; determining whether the terminal receives service from a plurality of serving cells, when it is determined that the terminal is operated in dynamic TDD mode; determining a power headroom type (hereinafter, PH type) on the basis of a radio resource control (hereinafter, RRC) message and downlink control information (DCI) received from a base station, when it is determined that the terminal receives a service from the plurality of serving cells; and transmitting information about the determined PH type using an extended PHR format.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for managing virtual private network (VPN) connectivity for data communications are disclosed. In one aspect, a method includes storing, in a computer-readable medium of a computing device, packages of code and configuration data that associate the packages of code with respective virtual private networks (VPNs), the configuration data associating at least one of the packages of code with at least two of the VPNs, and, in response to a request to execute application code included in a first package of code, identifying, based on the configuration data, a first VPN associated with the first package of code and binding a communication interface of the first package of code to a connection with the first VPN.

Abstract: A communication control system includes a first communication control device that includes a switching unit, a first gateway unit, a first power supply unit, and a first housing. The switching unit is provided in a vehicle, has a plurality of ports, and distributes a signal thereto. The first gateway unit has the CPU that is coupled to any one of the ports to convert a communication protocol of a signal. The first power supply unit supplies electric power to the switching unit and the first gateway unit. The first housing accommodates the switching unit, the first gateway unit, and the first power supply unit. The CPU can execute security processing for monitoring the switching unit.

Abstract: Data transmission in a communication network is performed via a transmission path with which a master participant and at least one slave participant communicate. The master participant outputs messages on the data transmission path with which the slave participants exchange data on the fly. The messages output by the master participant contain datagrams which comprise a control data field and a payload field, where the control data field has a command field and an address field. In the case that at least one message has at least one datagram which is a write datagram in which the command field defines the data transmission procedure to be performed by a slave participant with the payload field as a write procedure, at least the control data field of a further datagram is arranged between the control data field of the write datagram and the payload field of the write datagram.

Abstract: Switches within a telecommunications network exchange so-called available bandwidth messages, each of which advertises how much bandwidth remains unassigned on a respective link. The network is of a type in which circuits are provisioned with various predefined numbers of time slots (equivalent to bandwidth). The sending of an available bandwidth message for a given link is triggered by a change in the number of time slots available on that link if that change results in a change in the number of circuit bandwidths that can be accommodated by that link for a newly provisioned circuit.

Abstract: The disclosure relates to technology for beam searching. Beam searching includes forming an omnidirectional radiation pattern by a group of antenna elements including one antenna element from each of one or more phased array antennas. In response to detection of beams from a transmitter, searching for one antenna element in the group according to a combined signal strength of each antenna element in the group; and enabling a phased array antenna with the one antenna element to align with the beams.

Abstract: A vectoring controller for configuring a vectoring processor that jointly processes DMT communication signals to be transmitted over, or received from, a plurality of N subscriber lines according to a vectoring matrix. In accordance with an embodiment, the vectoring controller is configured, for given ones of a plurality of tones, to enable the given tone for direct data communication over a first set of N?Mk targeted lines out of the plurality of N subscriber lines, and to disable the given tone for direct data communication over a second disjoint set of Mk supporting lines out of the plurality of N subscriber lines, Mk denoting a non-null positive integer. The vectoring controller is further configured to configure the vectoring matrix to use an available transmit or receive power at the given tone over the second set of Mk supporting lines for further enhancement of data signal gains at the given tone over the first set of N?Mk targeted lines.

Abstract: A packet-based software-defined data network supporting multicast, unicast and/or broadcast packet-based data traffic types comprises a software defined network (SDN) controller; and a network of one or more packet switches arranged to route, under the control of the SDN controller, data packets from one or more packet sources to one or more packet receivers, in which the SDN controller is responsive to data defining a topology of interconnections between the plurality of packet switches, packet sources, and packet receivers, to select a route for packets from a packet source to a packet receiver; the SDN controller being configured to select the route in dependence upon the traffic type of the packets to be routed, using a respective one of a set of route selection algorithms each applicable to one of multicast, unicast and broadcast packet-based data traffic types.

Abstract: A system and method are provided herein for managing an amplifier at an intermediate location in a twisted pair line between a digital subscriber line (DSL) access multiplexer and a customer premises equipment, for high data rate broadband operation. The system may include a DSL access multiplexer, an amplifier, a local communication interface and a host computer, programmed to execute an element management system service application.

Abstract: Wireless access points providing hybrid 802.11 and scheduled priority access communications are provided herein. An exemplary wireless access point may be configured to communicate with a set of standard access clients using an 802.11 mode of communication during standard access phases, as well as communicate with a set of priority access clients during priority access phases, when the wireless access point is not communicating with the set of standard access clients, using a priority mode of communication.

Abstract: A router operates in both a Segment Routing (SR) network portion and a Multiprotocol Label Switching (MPLS) network portion of a network that utilizes Open Shortest Path First (OSPF). The router receives an OSPF advertisement message originated by a mapping server that includes a sub-Type-length-value (sub-TLV) element that identifies a preferred type of path across the MPLS network portion for an identifiable set of traffic that is to be received by the router from the SR network portion. The router identifies, based at least in part upon the sub-TLV element, one path of a plurality of available paths across the MPLS network portion for the identifiable set of traffic, and configures its forwarding plane to utilize the identified one path accordingly for the identifiable set of traffic. The OSPF advertisement message can be an OSPF LSA, and can carry an Extended Prefix Range TLV including the sub-TLV element.

Abstract: The present disclosure relates to the field of communication technology, and provides a control signaling transmission method, a control signaling reception method, a network device and a reception device. The control signaling transmission method includes steps of: acquiring a control instruction for processing a first signal, the first signal carrying a signal for which a reception device is not a target reception device; and transmitting the control instruction to the reception device, the control instruction configured to control the reception device to or not to process the first signal.

Abstract: Provided is a method for managing a packet data unit (PDU) session between a base station and a core network in a next generation/5G radio access network (hereinafter, also referred to as NR (New Radio)). The method may include determining whether a requirement of a quality of service (QoS) flow for a terminal is satisfied, transmitting, to a core network entity, a PDU session resource notification message indicating that the requirement is not satisfied when the requirement is not satisfied, receiving one of a PDU session resource modification message and a PDU session resource release message from the core network entity, and transmitting a processing result on one of the PDU session resource modification message and the PDU session resource release message to the core network entity.

Abstract: The present invention provides a method for selecting a transmission mode for a transmission to at least one further user equipment, by selecting a communication profile for communication with the at least one further user equipment out of a set of provided communication profiles as a function of at least one determined location property, wherein each communication profile defines a set of transmission parameters.