Upstream resource grant method, related device, and computer-readable storage medium

An upstream resource grant method comprising:

• receiving, by an optical network unit, an upstream grant message on which transformation processing has been performed, wherein a transformation parameter used for the transformation processing comprises a physical identity of the optical network unit, wherein the transformation processing is performed on:
• at least some payload fields of the upstream grant message by using the transformation parameter,
• a check field of the upstream grant message by using the transformation parameter,
• the check field and the at least some payload fields of the upstream grant message by using the transformation parameter;
• performing, by the optical network unit by using the transformation parameter comprising the physical identity of the optical network unit, inverse transformation processing on the upstream grant message on which the transformation processing has been performed;
• and
• in response to the inverse transformation processing being successful, extracting, by the optical network unit, an upstream resource grant indication carried in the upstream grant message on which the inverse transformation processing has been performed, and sending, by the optical network unit, an upstream optical signal on an upstream resource that is granted to the optical network unit and that is indicated by using the upstream resource grant indication.

An upstream resource grant method comprising:

• receiving, by an optical network unit, a jointly checked-encoded upstream grant message, wherein a check field of the jointly checked-encoded upstream grant message is obtained by performing joint check encoding by using a joint check parameter and a payload field of the upstream grant message, and the joint check parameter comprises a physical identity of the optical network unit;
• performing, by the optical network unit, integrity check on the jointly checked-encoded upstream grant message by using the joint check parameter comprising the physical identity of the optical network unit, and the payload field and the check field of the received jointly checked-encoded upstream grant message;
• and
• in response to the integrity check being successful, extracting, by the optical network unit, an upstream resource grant indication carried in the upstream grant message, and sending, by the optical network unit, an upstream optical signal on an upstream resource that is granted to the optical network unit and that is indicated by using the upstream resource grant indication.