Variable random access channel contention resolution window in a non-terrestrial network

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled with the memory, the one or more processors configured to:
• transmit a physical uplink shared channel (PUSCH) message associated with a random access channel (RACH) procedure to a non-terrestrial network node;
• calculate a round-trip delay (RTD) between the UE and the non-terrestrial network node;
• and
• monitor, after transmitting the PUSCH message and waiting a variable time period, a physical downlink control channel (PDCCH) for a contention resolution message during a contention resolution window, wherein the variable time period is based at least in part on:
• the RTD between the UE and the non-terrestrial network node,
• a feeder link delay between a gateway and the non-terrestrial network node, and
• a service link delay between the UE and the non-terrestrial network node.

A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

• one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:
• transmit a physical uplink shared channel (PUSCH) message associated with a random access channel procedure to a non-terrestrial network node;
• calculate a round-trip delay (RTD) between the UE and the non-terrestrial network node;
• and
• monitor, after transmitting the PUSCH message and waiting a variable time period, a physical downlink control channel (PDCCH) for a contention resolution message during a contention resolution window, wherein the variable time period is based at least in part on:
• the RTD between the UE and the non-terrestrial network node,
• a feeder link delay between a gateway and the non-terrestrial network node, and
• a service link delay between the UE and the non-terrestrial network node.

An apparatus for wireless communication, comprising:

• means for transmitting a physical uplink shared channel (PUSCH) message associated with a random access channel procedure to a non-terrestrial network node;
• means for calculating a round-trip delay (RTD) between the apparatus and the non-terrestrial network node;
• and
• means for monitoring, after transmitting the PUSCH message and waiting a variable time period, a physical downlink control channel (PDCCH) for a contention resolution message during a contention resolution window, wherein the variable time period is transmitted, based at least in part on the:
• RTD between the apparatus and the non-terrestrial network node,
• a feeder link delay between a gateway and the non-terrestrial network node, and
• a service link delay between the apparatus and the non-terrestrial network node.