Abstract: There are provided a clock node, a controller, a method of operating the clock node and a method of operating the controller in a time distribution network (TDN) comprising the controller being in data communication with the clock nodes via a control path. The method of operating the clock node comprises: sending, from the clock node via the control path to the controller, a first timestamp-related data; receiving, by the clock node via the control path from the controller, clock-recovery control data generated by the controller using the first timestamp-related data received from the clock node; processing the received clock-recovery control data to extract data usable for phase and frequency recovery; and using the extracted data to steer frequency and phase characterizing the clock node.

Abstract: Embodiments of the present disclosure provide a pilot transmission method and a data transmission apparatus in a wireless local area network. The pilot transmission method in a wireless local area network in the present disclosure includes: applying a pilot matrix to an LTF to generate a pilot, and sending the pilot, where the pilot matrix includes: a matrix formed from pilot sequences each having a pilot coefficient of each of the spatial flows, where the spatial flow is on M subcarriers in N symbol periods, the pilot matrix is an orthogonal matrix, M is a positive integer multiple of L, and L is a quantity of spatial flows. According to the present disclosure, channel estimation precision can be improved.

Abstract: Method and system for managing hidden node problem in a communication network. A receiving node in the system, upon receiving a data transmission request from at least one transmitting node, dynamically checks status of the channel between the transmitting node and the receiving node. If the channel is found to be clear for transmission, then the receiving node sends a message that indicates that the channel is clear, to the transmitting node, and the transmitting node starts transmitting the data. Upon receiving a message from the receiving node that the channel is not clear for transmission, then the transmitting node waits for a particular time period and attempts the connection again.

Abstract: Non-destructive data storage is disclosed. An information change is stored that is associated with a business object such that tracking of the information change is enabled with respect to one a transaction time and/or an effective time. The stored information change is accessed with respect to a time.

Abstract: A method and apparatus for requesting and releasing resources for a wireless transmit/receive unit (WTRU) and/or Node B. The WTRU may transmit a channel acquisition request to the Node B and receive a resource allocation from the Node B. The resource allocation may include a common resource. The WTRU may release the common resource. The release may be based on one or more conditions. The channel acquisition request or the resource allocation may include information related to one or more channels or resources.

Abstract: Methods, systems, and devices for wireless communication are described. A discontinuous reception (DRX) periodicity may be configured to enable monitoring of a reference signal (RS) for RLM procedures. For example, a transmitting device may configure a DRX periodicity for an RS, where the configured DRX periodicity may include a periodicity of discrete transmissions of the RS or a periodicity of a transmission window in which the RS is located. Accordingly, a receiving device may identify the DRX periodicity and monitor radio link quality using the RS based on the DRX periodicity. In some examples, the RS may be transmitted independent of control channel transmissions, and the transmitting device may configure one or more control resource sets for the RS.

Abstract: A method and a device for measuring a signal in a beam forming system. A method of measuring a signal by using beam forming by a wireless communication mobile station includes: acquiring a group setting rule that is a criterion for group classification; measuring a signal for each of transmission/reception beam pairs for a preset period of time; classifying the transmission/reception beam pairs into two or more transmission/reception beam groups according to the measured signal and the group setting rule; and performing signal measurement and report for the transmission/reception beam pairs belonging to the respective transmission/reception beam groups according to a measurement rule corresponding to the corresponding transmission/reception beam group. The device and the method efficiently measure the signal.

Abstract: In one embodiment, a method includes, by a controller of a multi-hop wireless network, accessing an interference map indicating interference among network nodes of the multi-hop wireless network. The controller may generate a factor-graph representation of the multi-hop wireless network that includes a first set of vertices which represent variable nodes and correspond to transmitting (TX) sectors of the network nodes and a second set of vertices which represent function nodes and correspond to receiving (RX) sectors of the network nodes. The controller may determine a time-slot-exclusion schedule for one or more network nodes of the multi-hop wireless network to reduce interference among network nodes of the multi-hop wireless network, wherein only certain sectors of the particular network nodes may transmit or receive during certain time slots in the time-slot-exclusion schedule.

Abstract: A system for distributing content includes a content distribution platform (CDP) analysis module configured to determine an optimal combination of one or more CDP components for distributing a specified content item based on at least one content item profile. A method of distributing content includes determining an optimal combination of one or more content distribution platform (CDP) components for distributing a specified content item based on at least one content profile.

Abstract: Radio-over-fiber (ROF) antenna extender systems and methods are disclosed for high speed train communications which utilize cellular networks as backhauls to avoid the expensive capital expenditure involved in providing broadband Internet services in high speed trains. Employing ROF technology, on-roof antennas are deployed in strategic configurations to address the drawbacks of utilizing cellar networks as backhauls. The systems and methods provide broadband Internet service to a train and include a plurality of antennas mounted to an exterior of the train and operable to communicate with a cellular network, wireless access points mounted to the train, and a control system operably coupled to the plurality of antennas and to the wireless access points, wherein the control system is operable to receive and process data received from the plurality of antennas and the one wireless access points.

Abstract: System and method embodiments are provided for controlling and managing in-network device-to-device (D2D) communications. In an embodiment, a method for a UE performing device-to-device (D2D) communication includes generating a D2D buffer status report (BSR) for a D2D communication link between the UE and a second UE that provides information related to an amount of D2D data available for transmission, wherein the D2D BSR comprises a D2D BSR logical channel identifier (LCID); transmitting the D2D BSR in a control element; receiving, a resource allocation for the D2D link; and transmitting D2D data over the allocated resources.

Abstract: A first communication device generates a physical layer (PHY) preamble for a PHY data unit to be transmitted via a communication channel, the PHY data unit conforming to a first communication protocol. Generating the PHY preamble includes generating a legacy portion of the PHY preamble to include a legacy signal field, which is decodable by one or more second communication devices that conform to a second communication protocol to determine a duration of the PHY data unit. The PHY preamble is generated to also include a duplicate of the legacy signal field in the PHY preamble, wherein presence of the duplicate of the legacy signal field indicates to one or more third communication devices that conform to the first communication protocol that the PHY data unit conforms to the first communication protocol. The first communication device generates the PHY data unit to include the PHY preamble and a PHY payload.

Abstract: Embodiments are provided for implementing control plane functionality to configure a data plane at a plurality of network nodes. A software defined topology (SDT) component is configured to determine a data plane logical topology indicating a plurality of selected nodes and a logical architecture connecting the selected nodes. The data plane logical topology enables traffic delivery for a service or virtual network for an end-customer or operator. A software defined networking (SDN) component is configured to interact with the SDT component and map the data plane logical topology to a physical network. The mapping includes allocating network nodes including the selected nodes and network resources which enable communications for the service or virtual network and meet QoS requirement. A software defined protocol (SDP) component is configured to interact with the SDN and define data plane protocol and process functionality for the network nodes.

Abstract: A method and an apparatus for transmitting a resource, and a method for the HARQ retransmission using an unlicensed band include an operation of performing clear channel assessment (CCA) for the unlicensed band; and an operation of occupying a channel of the unlicensed band according to the CCA and determining whether or not the resource is transmitted based on a position of a transmission time interval (TTI) within a channel occupancy time (COT) for the channel.

Abstract: The present invention relates to the communications field and provides a group communication method. The method includes: obtaining location information of UE; when determining that an L-BM-SC is deployed at a location of an eNB to which the UE belongs, determining, according to the location information of the UE, an MCE that manages the eNB to which the UE belongs; and sending a first bearer activation request to the MCE, where the first bearer activation request includes the location information of the UE, so that the MCE determines, according to the location information of the UE, a first L-BM-SC deployed at the location of the eNB to which the UE belongs, and establishes a bearer between the first L-BM-SC and a GCS AS, where the bearer between the first L-BM-SC and the GCS AS is used by the GCS AS to send a packet to the first L-BM-SC.

Abstract: This disclosure concerns a system and method for determining, via a processor, a designation of an mobile information handling system as a master mobile information handling system within a wireless neighborhood based on power level, radio capabilities, and radio frequency range to a cluster of mobile information handling systems and scanning a plurality of radio channels in a shared communication frequency band for base transceiver station (BTS) systems operating a first wireless link protocol and a second wireless link protocol within communication range of the mobile information handling system to detect a BTS load and preparing a radiofrequency band local QoS report for the first wireless link protocol and the second wireless link protocol in the wireless neighborhood for broadcast on an unlicensed communication frequency band to the cluster of mobile information handling systems.

Abstract: In one embodiment, a method includes, by a controller of a multi-hop wireless network, accessing an interference map indicating interference among network nodes of the multi-hop wireless network. The controller may generate a factor-graph representation of the multi-hop wireless network that includes a first set of vertices which represent variable nodes and correspond to transmitting (TX) sectors of the network nodes and a second set of vertices which represent function nodes and correspond to receiving (RX) sectors of the network nodes. The controller may determine one or more adjustments to one or more beamforming weights of sectors of the network nodes, wherein for each of the TX or RX sectors, a beamforming weight is determined by a marginal a posteriori probability for each variable of the beamforming weight; and the adjustments reduce interference among the network nodes to increase a sum capacity of the multi-hop wireless network.

Abstract: In one embodiment, a method comprises: promiscuously detecting, by a parent network device in a tree-based network topology, a data packet transmitted to a child network device attached to the parent network device, the data packet transmitted by a grandchild network device attached to the child network device; determining, by the parent network device, whether the data packet transmitted to the child network device is to be forwarded toward a destination via the parent network device; and the parent network device selectively initiating intercepted forwarding of the data packet toward the destination, on behalf of the child network device, based on determining that the data packet is to be forwarded toward the destination via the parent network device.

Abstract: An example apparatus comprises a processor, a memory element, and a media access control (MAC) scheduler. The MAC scheduler is configured to implement a transmission-reception (T-R) coordination scheme among a plurality of cable modems in a cable network, wherein the cable modems are categorized into interference groups. The MAC scheduler is further configured to assign one or more of the interference groups to at least one transmission group based upon predetermined criteria; and determine an upstream bandwidth constraint and downstream bandwidth constraint for the at least one transmission group, wherein the upstream bandwidth constraint and downstream bandwidth constraint is implemented by proportionally modifying an allocated upstream bandwidth and an allocated downstream bandwidth for the at least one transmission group to require that the sum of the allocated upstream bandwidth and the allocated downstream bandwidth does not exceed a spectrum capacity for the at least one transmission group.

Abstract: The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. A method for receiving feedback information by a base station in a wireless access system supporting FDR comprises the steps of: transmitting, to a terminal, frame configuration information of terminal-specific time division multiplexing (TDD); and receiving, from the terminal, feedback information in an uplink (UL) subframe according to the frame configuration information, wherein the frame configuration information can determine the location of the UL subframe in which feedback information for each DL subframe is to be transmitted, on the basis of the value obtained by dividing the number of downlink (DL) subframes by the number of UL subframes in a wireless frame.