What did Tesla call his concept of a global wireless communication and power transmission system?

Tesla called his proposed global wireless communication and power network the World Wireless System.

Tesla imagined a worldwide infrastructure that could transmit messages, telephone calls, and electrical energy without conventional wires. His concept relied on specially tuned transmitters and receivers, with the Earth and atmosphere serving as parts of the electrical transmission path. He developed the idea from his high-frequency experiments of the 1890s and publicized it around the turn of the century.

The best-known physical expression of the plan was Wardenclyffe Tower on Long Island, New York. Financed initially by J. P. Morgan, the station was intended to support transatlantic communication and eventually wireless power transmission. The project was never completed as Tesla envisioned, and there is no reliable evidence that he transmitted substantial electrical power over long distances.

The Tesla coil was an important device used in his experiments, but it was not the name of the global system. Teleforce was a later proposed particle-beam weapon, while remote control described another area of Tesla's work.