METHODS FOR PRIVACY PROTECTION USING COORDINATION OF INITIAL CONNECTION RELEASE DURING RELAY RESELECTION

In an implementation, a second device, for example a second WTRU, may receive a Link Modification Request (LMR) message from a first device, for example a first WTRU, via a first relay. The LMR message may include one or more new MSBs for a new Key NR ProSe identifier (KNRP ID). The second WTRU may send a link modification accept (LMA) message to the first WTRU via the first relay. The LMA message may include one or more new LSBs for the new KNRP ID. The second WTRU may form the new KNRP ID by combining the one or more new MSBs with the one or more new LSBs and replacing an existing KNRP ID with the new KNRP ID. The second WTRU may also receive a direct connection request (DCR) message from the first WTRU via a second relay. The DCR message may include the new KNRP ID.