A channel selection method and a transmit end are provided. The method includes: ranking multiple channels, and generating a backoff count value; sequentially decrementing, from an initial timeslot, the backoff count value in each timeslot according to a ranking sequence of the channels and busy/idle states of all the channels until the backoff count value is 0; and selecting, from the multiple channels according to a result of the decrement performed on the backoff count value and a busy/idle state of at least one of the multiple channels, a channel that is used by the transmit end for sending data. The method and the transmit end can improve channel utilization.

A communication control apparatus (40) includes: a first determination unit (442) that periodically determines an operation parameter related to radio transmission of each of a single or a plurality of second wireless systems that perform wireless communication by utilizing a radio wave of a frequency band used by a single or a plurality of first wireless systems; a second determination unit (444) that determines, when a radio-wave use request is received from a new second wireless system in a determination period of the operation parameter, whether or not to define the new second wireless system as a system to be forcibly stopped when the first wireless system uses the radio wave; and a notification unit (445) that makes a notification to the new second wireless system regarding a radio-wave use permission before a next determination period of the operation parameter.

A communication control method is a method using a relay node that includes a first functional unit connecting wirelessly to a lower node and a second functional unit connecting wirelessly to the upper node and relays data from the lower node to the upper node. The communication control method includes detecting, by the second functional unit, that a predetermined event related to resource allocation to the lower node is occurred in the first functional unit, and transmitting, by the second functional unit, to the upper node, in a case of detecting occurrence of the predetermined event, a first buffer state report including size information indicating an amount of data having yet to be transmitted to the upper node. The detecting includes detecting the occurrence of the predetermined event by monitoring an event occurring in the first functional unit, or by receiving, from the first functional unit, a notification indicating that the predetermined event is occurred.

A routing method for routing an application data stream from a routing device in a vehicle to a receiving device. The routing device has available to it a plurality of communication arrangements. Before a movement of the vehicle, at least one parameter representative of the performance is estimated along a planned itinerary for each communication arrangement. Theoretical routing rules are then defined based on the estimated parameters and application requirements. During the movement of the vehicle, at least one parameter representative of the performance is estimated for each communication arrangement. The application stream is then routed by using routing rules determined in response to a comparison between the parameters representative of the performance estimated before movement and the corresponding parameters estimated during the movement.

A method for managing a computer network is provided, which comprises: performing data collection at at least one network node of the computer network belonging to a set of one or more network nodes corresponding to a first depth level of a routing tree that represents nodes of the computer network and edges respectively corresponding to neighboring relations between two nodes of the computer network, the data collection comprising: receiving first data collection configuration data generating second data collection configuration data for collecting data from at least one child node in the routing tree of the at least one network node of the computer network, wherein the second data collection configuration data comprises scheduling data for collecting data from each of the at least one child node, and collecting data from each of the at least one child node according to the second data collection configuration data.

In one implementation, a method for using a mobile computing device as a security system component includes receiving, from a mobile device and by a security system gateway, mobile device sensor information associated with sensor data captured by the mobile device at a premises monitored by the security system gateway; identifying, based on the received sensor information, a mobile device sensor information rule; identifying an action to perform in the mobile device sensor information rule; and automatically performing the identified action, by the security system gateway, in response to receiving the sensor information from the mobile device.

In one implementation, a method for using a mobile computing device as a security system component includes receiving, from a mobile device and by a security system gateway, mobile device sensor information associated with sensor data captured by the mobile device at a premises monitored by the security system gateway; identifying, based on the received sensor information, a mobile device sensor information rule; identifying an action to perform in the mobile device sensor information rule; and automatically performing the identified action, by the security system gateway, in response to receiving the sensor information from the mobile device.

The present disclosure provides an analytical framework to investigate judicious topology reweighting of radio networks of clocks, when distributed time transfer and synchronization are based on physical layers and subject to the presence of false timing signals. Protagonist clocks exchange timing information pairwise, which is modeled as clocks tending to follow the majority of their neighbors. Antagonist clocks inject false timing signals, thereby, influencing the timing synchronization of (some of) the other protagonist clocks they meet. A class of pursuit-evasion graphical games subject to complete state observations and exploitation of phase noise disturbances, is proposed in designing clock steering protocols for resilient time metrologies that will be immune to erroneous timing signals injected into remote time dissemination networks.

A network device may select a first user plane function for establishing, with a user equipment, a protocol data unit session with a single flow and may receive an application function trigger associated with a first new flow for a first application of the user equipment. The network device may select a second user plane function for the first new flow and may create a first traffic filter for the first new flow. The network device may cause the first traffic filter to be provided to the user equipment so that first application traffic is routed, based on the first traffic filter, to the second user plane function and a first multi-access edge computing device associated with the second user plane function.

Apparatuses, methods, and systems are disclosed for data packet routing in a remote unit. An apparatus includes a processor that receives a data packet to be transmitted and determines packet routing information for the data packet, the packet routing information comprising at least one of: network slice information, a continuity type, and a data network name for the data packet. The processor also determines whether the packet routing information matches a network connection and sends the data packet over a matching network connection, in response to determining that the packet routing information matches a network connection. In some embodiments, the apparatus includes a transceiver that communicates with a mobile communication network using at least one network connection of a first connection type associated with network slice information, a continuity type, and a DNN.