Millimeter wave relay link discovery

A first user equipment (UE), comprising:

• a wireless transceiver;
• a memory;
• and
• a processor communicatively coupled to the wireless transceiver and the memory, wherein the processor is configured to:
• receive a first signal from a second UE via at least one pseudo-omnidirectional beam to determine that the first UE is within a range of the second UE via the wireless transceiver, wherein the first signal comprises at least one of a primary synchronization signal waveform or a secondary synchronization signal waveform encapsulated within a format of an uplink reference signal;
• receive a second signal from a base station over a first link, the second signal indicating that the first UE establish a relay link with the second UE via the wireless transceiver;
• and
• relay information between the second UE and the base station via the first link and the relay link using a directional beam pair link with the second UE.

A method of wireless communication at a first user equipment (UE) in a wireless communication network, the method comprising:

• broadcasting a signal via at least one pseudo-omnidirectional beam to enable a second UE to determine that the second UE is within a range of the first UE, wherein the signal comprises at least one of a primary synchronization signal waveform or a secondary synchronization signal waveform encapsulated within a format of an uplink reference signal;
• establishing a relay link with the second UE utilizing a directional beam pair link upon an occurrence of an external event;
• and
• communicating with a base station via the relay link.

A first user equipment (UE), comprising:

• a wireless transceiver;
• a memory;
• and
• a processor communicatively coupled to the wireless transceiver and the memory, wherein the processor is configured to:
• broadcast a signal via at least one pseudo-omnidirectional beam and the wireless transceiver to enable a second UE to determine that the second UE is within a range of the first UE, wherein the signal comprises at least one of a primary synchronization signal waveform or a secondary synchronization signal waveform encapsulated within a format of an uplink reference signal;
• establish a relay link with the second UE utilizing a directional beam pair link upon an occurrence of an external event;
• and
• communicate with a base station via the relay link.