A path switching method and a related device, where the method includes receiving, by a base station, a first message from a first user equipment requesting to switch the first user equipment from a non-direct path for communicating with the base station using a second user equipment to a direct path communicating with the base station, and sending, by the base station, a second message to the first user equipment instructing the first user equipment to perform path switching. The second message includes at least one of a timing advance, a closed-loop power control value or an uplink grant configuration.

A path switching method and a related device, where the method includes receiving, by a base station, a first message from a first user equipment requesting to switch the first user equipment from a non-direct path for communicating with the base station using a second user equipment to a direct path communicating with the base station, and sending, by the base station, a second message to the first user equipment instructing the first user equipment to perform path switching. The second message includes at least one of a timing advance, a closed-loop power control value or an uplink grant configuration.

A network management system (NMS) for a communications network has communications apparatus capable of being operated in different power consumption modes to provide different levels of performance, has a path computation apparatus configured to select paths for the traffic using the communications apparatus, based on information about traffic load in the network and on information about the power consumption modes of the communications apparatus of at least one of the nodes. A power mode controller is also provided for controlling the power consumption modes of the communications apparatus according to information about traffic load and according to information about the paths selected. By combining of path computation and the control of power consumption modes the overall power consumption of the network can be reduced. A slave power mode controller can be provided.

One embodiment provides a method, including: detecting an event; determining, using a processor of a wireless node, one or more other wireless nodes within wireless range; generating, after the event, a packet of data including identifications of the one or more wireless nodes and positional data associated therewith; and transmitting, over a network connection, the packet of data to at least one of the one or more wireless nodes. Other embodiments are described and claimed.

A WSN has multiple sensor nodes, a bi-directional gateway sensor node, and a server. The WSN also includes circuitry configured to process a route request message from an origination sensor node to a destination sensor node. A message packet of each of the sensor nodes includes a minimum energy field, a minimum energy harvesting rate field, and a sum of energy field. The circuitry is also configured to determine a new delivery route based upon comparing a minimum energy and a minimum energy harvesting rate of an instant sensor node with a minimum energy and a minimum energy harvesting rate contained in the message packet, and select a lower minimum energy and a lower minimum energy harvesting rate from the instant sensor node or the message packet. The circuitry is also configured to broadcast the lower minimum energy and the lower minimum energy harvesting rate throughout the WSN.

A WSN has multiple sensor nodes, a bi-directional gateway sensor node, and a server. The WSN also includes circuitry configured to process a route request message from an origination sensor node to a destination sensor node. A message packet of each of the sensor nodes includes a minimum energy field, a minimum energy harvesting rate field, and a sum of energy field. The circuitry is also configured to determine a new delivery route based upon comparing a minimum energy and a minimum energy harvesting rate of an instant sensor node with a minimum energy and a minimum energy harvesting rate contained in the message packet, and select a lower minimum energy and a lower minimum energy harvesting rate from the instant sensor node or the message packet. The circuitry is also configured to broadcast the lower minimum energy and the lower minimum energy harvesting rate throughout the WSN.

A method for controlling a plurality of network interfaces of an electronic device includes: providing at least one table comprising information associated with a plurality of routing costs, wherein the routing costs correspond to at least paths between each of the network interfaces of the electronic device and the other electronic devices; and referring to the at least one table to select a specific network interface to transmit/receive data, and to disable at least one of the unused network interfaces.

A method for controlling a plurality of network interfaces of an electronic device includes: providing at least one table comprising information associated with a plurality of routing costs, wherein the routing costs correspond to at least paths between each of the network interfaces of the electronic device and the other electronic devices; and referring to the at least one table to select a specific network interface to transmit/receive data, and to disable at least one of the unused network interfaces.

A path selection apparatus 100 that selects a path in a sensor tree in a wireless sensor network including a plurality of nodes including a sensor node and a relay node includes a node information acquisition unit 110 that acquires information on the nodes and a path determination unit 130 that determines a path in the sensor tree based on the information on the nodes acquired by the node information acquisition unit 110, wherein the path determination unit 130 uses node costs of the sensor node and the relay node in the wireless sensor network and weights a path cost of a path passing through the relay node.

A wire device receives: configuration parameters of: a primary cell with a primary physical uplink control channel (PUCCH); and a secondary cell with a secondary PUCCH; a transmit power control (TPC) radio network temporary identifier (RNTI); a primary TPC index of the primary PUCCH; and a secondary TPC index of the secondary PUCCH. The wireless device receives a downlink control information (DCI) associated with the TPC RNTI. The secondary TPC index identifies a TPC command in an array of TPC commands in the DCI. The wireless device adjusts a transmission power of the secondary PUCCH based on the TPC command.