Patent attributes
Mobile devices, autonomous sensors and actuators, and myriad other IoT wireless devices demand low-complexity protocols in addition to 5G and 6G protocols. Disclosed are methods for devices to form spontaneous local sidelink networks without involvement of a base station. In a first aspect, a user device can broadcast a hailing message soliciting replies from all devices in range, each reply including the wireless address of the replying user device. In another aspect, each of the user devices in a sidelink network can periodically transmit a semaphore message indicating its wireless addresses, and a new arrival can join the sidelink network by appending its semaphore message to the others. After forming the sidelink network, the user devices can communicate among themselves unicast (addressed to a specific member of the sidelink network). Also disclosed are procedures for recovery from message collisions and transmission of emergency messages. Many other aspects are disclosed.
