Establishing a relay connection for an out-of-coverage (ooc) sidelink (sl) user equipment (ue)

A relay user equipment (UE), comprising:

• one or more processors;
• and
• one or more memories coupled with the one or more processors and storing processor-executable code that, when executed by the one or more processors, is configured to cause the relay UE to:
• receive, from a network node, a first message indicating one or more parameters associated with a relay synchronization signal block (SSB);
• receive, from the network node, a second message instructing the relay UE to transmit the relay SSB in accordance with the one or more parameters;
• and
• transmit, to one or more out-of-coverage (OOC) sidelink (SL) UEs via an SL channel, a third message including the relay SSB in accordance with receiving the second message.

A method for wireless communication at a relay user equipment (UE), comprising:

• receiving, from an out-of-coverage (OOC) sidelink (SL) UE via an SL channel, a first message indicating a connection request and a first UE identifier (ID) associated with the OOC sidelink UE in accordance with transmitting a relay synchronization signal block (SSB);
• transmitting, to a network node, a second message including the connection request and the first UE ID to enable the network node to control the OOC SL UE;
• receiving, from the network node, a third message indicating a connection approval and one or more connection parameters in accordance with transmitting the second message;
• and
• transmitting, to the OOC SL UE via the SL channel, a fourth message indicating the connection approval and the one or more connection parameters in accordance with receiving the third message.

A relay user equipment (UE), comprising:

• one or more processors;
• and
• one or more memories coupled with the one or more processors and storing processor-executable code that, when executed by the one or more processors, is configured to cause the relay UE to:
• receive, from an out-of-coverage (OOC) sidelink (SL) UE via an SL channel, a first message indicating a connection request and a first UE identifier (ID) associated with the OOC sidelink UE in accordance with transmitting a relay synchronization signal block (SSB);
• transmit, to a network node, a second message including the connection request and the first UE ID to enable the network node to control the OOC SL UE;
• receive, from the network node, a third message indicating a connection approval and one or more connection parameters in accordance with transmitting the second message;
• and
• transmit, to the OOC SL UE via the SL channel, a fourth message indicating the connection approval and the one or more connection parameters in accordance with receiving the third message.