Abstract:
A method for reporting a downstream packet resequencing status of a cable modem is provided to report a remaining amount of a receiving buffer to a cable modem terminal system, periodically and to report resequencing packet information stored in the receiving buffer for minimizing a packet loss due to overflow of the receiving buffer. A method for reporting a downstream packet resequencing status of a cable modem comprises the following steps of: creating a resequencing status message including a packet sequence number of packets inducing an event when the event for packet resequencing occurs; transmitting a band assignment requesting message for requesting assignment of a upstream band for transmitting the resequencing status message to a cable modem terminal system(1170); and transmitting the resequencing status message to the cable modem terminal system through the assigned upstream band(1190).
Abstract:
PURPOSE: A fuzzy-based voice/data integrated random access control system is provided to predict traffic load of a voice and data, and to dynamically control length of a reserved section of a frame, length of a reserved section of a frame, and an access permission probability of the reserved sections by using a fuzzy control, thereby magnifying a system efficiency. CONSTITUTION: At least more than one voice terminal device(200) transmits a reservation request message to a central control device(100) by recontrolling an access permission probability received from the central control device(100), and transmits information to the central control device(100) by using allocated slot reservation information received from the central control device(100). The central control device(100) predicts traffic load of a voice and data on the basis of a receiving result of the reservation request message, and dynamically controls length of a reserved section of a frame, length of a reserved section of traffic, and access permission probability of the reserved sections by using a fuzzy control, then transmits the allocated slot reservation information to the voice terminal device(200).