METHODS FOR ENABLING DELAY-AWARENESS IN THE CONSTRAINED APPLICATION PROTOCOL (COAP)

摘要

A Delay lndicator parameter is contained in CoAP messages to reflect delay tolerance information. The Delay lndicator is leveraged by CoAP Clients and CoAP Servers to improve their behavior such as entering sleep mode to save energy while not violating delay requirements. A timeout mechanism for CoAP Response is enabled by a RESPONSE_Timer based on the Delay lndicator in CoAP ACK. Cancellation of CoAP Requests is enabled by leveraging the delay tolerance information as indicated by Delay lndicator.