US Patent 11665730 Relay for wireless communication system

Systems, methods and instrumentalities are disclosed for establishing a connection between a remote WTRU and a relay WTRU over a radio link interface. The relay WTRU may be authorized by a network to perform relay functions and may receive a parameter relating to the operation of the radio link interface. The relay WTRU may receive a request from the remote WTRU to establish a connection with relay WTRU over the radio link interface. The relay WTRU may determine whether to accept or reject the request based on information provided by the remote WTRU and the network. The relay WTRU may send a response to the remote WTRU based on the determination.