This also provides a potential way to save operators' infrastructure cost by converging different air interface technologies (e.g., LTE/3G/2G/Wi-Fi) on the AP and employing LTE on the link between MR and the outside base stations.
Inside the train, passengers connect to the AP and then their data are forwarded to outside base stations via MR. In the C/U-plane decoupled architecture, C-plane signaling and U-plane data of train passengers' services are separately transmitted by the macro and small cells.
If all users in a cell can be served by base stations outside the cell, then the base station in the cell is no longer required and can be turned to a sleep mode.
A four-hour drive from the nearest cellular coverage in the remote highlands of Papua, Indonesia, a new kind of guerilla telecom network is operating, albeit outside the law, using a cheap base station roped into a treetop.
To expand the area of the WSN, data must be forwarded from devices outside the communication range of the base station via a relay node.
These sensors are wired connected to an outside antenna that directly reports to a base station.
Biosensor nodes are distributed on a human body or wearable devices, and the base station is located at outside of biosensor networks.
Finally, the super-frame is cyclically transmitted from the base station to both mobile receivers, one placed outside the car and the other installed inside.
For assessing occupation RF exposure in the context of base station antennas, a "compliance boundary" can be used, defined so that for personnel outside the boundary, RF levels are low enough to be in compliance with relevant safety standards.
Maybe the base station had failed.
