Systems and methods for collision resolution during ONU activation

A system, comprising:

• an optical line terminal (OLT) device configured to transmit a broadcast contention-based allocation associated with activation of devices in an optical network;
• and
• a first optical network unit (ONU) configured to:
• store a value,
• receive the broadcast contention-based allocation,
• transmit a message in response to the contention-based allocation, wherein the message includes information identifying the first ONU,
• wherein the OLT device is further configured to:
• broadcast an assignment message or a feedback message associated with reception of the message at the OLT device,
• execute, with the first ONU, a ranging phase of activation of the first ONU after broadcasting the assignment message, and
• wherein the first ONU is configured to execute a retransmission procedure, in response to the feedback message indicating that a collision occurred, wherein when executing the retransmission procedure, the first ONU is configured to modify the value in response to the feedback message, wherein the value identifies a layer in a stack and determines when the first ONU is to retransmit the message to the OLT device.

A method, comprising:

• transmitting, by an optical line terminal (OLT) device, a contention-based allocation to a plurality of optical network units (ONUs) in a system, wherein the contention-based allocation is associated with ONU activation;
• receiving, by the OLT device, at least one message from at least one of the ONUs in response to the contention-based allocation;
• broadcasting a least one of an assignment message or a feedback message to the plurality of ONUs, wherein the feedback message indicates whether a collision occurred;
• executing, by the OLT device and with a first one of the plurality of ONUs, a ranging phase of activating the first ONU after broadcasting the assignment message;
• and
• executing, by the first ONU, a retransmission procedure, in response to the feedback message indicating that a collision occurred, wherein when executing the retransmission procedure, the first ONU is configured to modify a stored value in response to the feedback message, wherein the value identifies a layer in a stack and determines when the first ONU is to retransmit a message to the OLT.