The building stress balance monitoring system of the passive sensor network, relating to the technical field of information, and aiming to solve the problem of making the pressure sensor easier to be charged in building stress monitoring. The system includes plurality of nodes arranged in the same building surface of the building or arranged in the supporting surface of the bridge; each node mainly consists of the pressure sensor module, the radio frequency signal acquisition module, and the network module; the sensing surface of the pressure sensing module acquires building pressure information and transmits same to the pressure sensor module; the pressure sensor module receives electric energy provided by the radio frequency signal acquisition module, and converts the pressure information into data, which can be uploaded to the network through the network module. The effect of making the pressure sensor easier to be charged is achieved.

Aspects of the subject disclosure may include, for example, a method that includes obtaining, by a processing system, real-time information regarding a state of a communication network and capabilities of the communication network; selecting a routing for delivering a message to user equipment (UE) coupled to the network, in accordance with the real-time information; and configuring a messaging path according to the routing. The method further includes detecting whether the UE is in a non-active state and if so, providing a notification on a user plane data path of the communication network; the UE on returning to an active state thus is notified that the message is available via the user plane data path. If the UE on returning to the active state is unable to receive the message via the user plane data path, the message is then provided on a control plane signaling path. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, a method that includes obtaining, by a processing system, real-time information regarding a state of a communication network and capabilities of the communication network; selecting a routing for delivering a message to user equipment (UE) coupled to the network, in accordance with the real-time information; and configuring a messaging path according to the routing. The method further includes detecting whether the UE is in a non-active state and if so, providing a notification on a user plane data path of the communication network; the UE on returning to an active state thus is notified that the message is available via the user plane data path. If the UE on returning to the active state is unable to receive the message via the user plane data path, the message is then provided on a control plane signaling path. Other embodiments are disclosed.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may receive a first indication of an energy-saving configuration for traffic routing associated with a traffic path between the first wireless node and a second wireless node. The first wireless node may transmit a second indication of the energy-saving configuration for traffic routing to the second wireless node. The first wireless node may communicate, with the second wireless node on the traffic path, in accordance with the energy-saving configuration. Numerous other aspects are described.

A method of operating an access control system comprising a plurality of access controls, the method comprising: determining an energy metric of each of the plurality of access controls; determining a latency metric of each of the plurality of access controls; transmitting the energy metric of each of the plurality of access controls; transmitting the latency metric of each of the plurality of access controls; collecting the energy metric and the latency metric at a head node or collecting energy metric at each of the plurality of access controls from a 1-hop transmission distance; and determining a data route through the plurality of access controls in response to the energy metric of each of the plurality of access controls and the latency metric of each of the plurality of access controls.

A method of operating an access control system comprising a plurality of access controls, the method comprising: determining an energy metric of each of the plurality of access controls; determining a latency metric of each of the plurality of access controls; transmitting the energy metric of each of the plurality of access controls; transmitting the latency metric of each of the plurality of access controls; collecting the energy metric and the latency metric at a head node or collecting energy metric at each of the plurality of access controls from a 1-hop transmission distance; and determining a data route through the plurality of access controls in response to the energy metric of each of the plurality of access controls and the latency metric of each of the plurality of access controls.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to operate as a relay UE based on a set of thresholds configured for the first UE. The UE may transmit a relay discovery announcement on a communication channel of a sidelink to indicate support for relay communications. A remote UE may monitor for and receive the relay discovery announcement on the sidelink communications channel. The remote UE may select the relay UE based on a set of criteria for selecting a candidate relay UE. The remote UE and the relay UE may establish the relay communications based on the relay discovery announcement transmitted on the communications channel of the relay sidelink.

A method of routing communication between nodes of a mesh network is provided. The method includes each node of the mesh network advertising a hop distance relative to a head of the mesh network, the hop distance being a measure of how many hops a node of the mesh network is from a head node of the mesh network, the head node being a node of the mesh network that controls all the other nodes of the mesh network.

A method of routing communication between nodes of a mesh network is provided. The method includes each node of the mesh network advertising a hop distance relative to a head of the mesh network, the hop distance being a measure of how many hops a node of the mesh network is from a head node of the mesh network, the head node being a node of the mesh network that controls all the other nodes of the mesh network.

To configure a wireless sensor network, a sink node receives from nodes first reports, a first report from a node indicating quality of service requirement of the node and battery information of the node, and second reports, a second report from a node indicating at least a signal strength of one signal received from another node. The information in the first reports and in the second reports are used for determining paths from the nodes to the sink node, wherein a path of a node is either a direct link from the node to the sink node or the path comprises at least one node acting as a cluster head between the node and the sink node.