Service scheduling unit and a method thereof

A packet service scheduling method for a digital communication system comprising a line unit, a data service access processing unit and a cross-connecting unit, comprising:

• configuring two service scheduling units with identical functions and configurations to be connected with the cross-connecting unit in the digital communication system;
• copying, by the cross-connecting unit, services to be scheduled from the line unit and/or the data service access processing unit to the service scheduling units which accordingly perform identical receipt, processing and transmission procedures for the services;
• in case the service scheduling units both operate normally, receiving by the cross-connecting unit identical service streams from the service scheduling units, either of which is selected and cross-scheduled to the line unit and/or the data service access processing unit in the digital communication system;
• and
• in case one of the service scheduling units fails, reporting by the failed service scheduling unit the fault to a control unit which instructs the cross-connecting unit to select the service stream from the other service scheduling unit which operates normally, or reporting the fault directly to the cross-connecting unit which selects the service stream from the normally-operating one.

A packet service scheduling method for a digital communication system comprising

• a line unit, a data service access processing unit and a cross-connecting unit, comprising:
• configuring two service scheduling units with identical functions and configurations to be connected with the cross-connecting unit and the data service access processing unit in the digital communication system;
• copying services to be scheduled by the cross-connecting unit and/or the data service access processing unit to the service scheduling units which accordingly perform identical receiving, processing and transmitting procedures for the services;
• in case the service scheduling units both operate normally, receiving by the cross-connecting unit identical service streams from the service scheduling units, either of which is selected and cross-scheduled to the line unit in the digital communication system, and receiving by the data service access processing unit the identical service streams from the service scheduling units, either of which is selected for processing;
• and
• in case one of the service scheduling units fails, reporting by the failed service scheduling unit the fault to a control unit which instructs the cross-connecting unit and the data service access processing unit to select the service stream from the normally-operating one, or reporting by the failed one the fault directly to the cross-connecting unit and the data service access processing unit which select the service stream from the normally-operating one.

A packet service scheduling method for a digital communication system comprising a line unit, a data service access processing unit and a cross-connecting unit, comprising:

• configuring two service scheduling units with identical functions and configurations to be connected with the cross-connecting unit in the digital communication system;
• assigning, by the cross-connecting unit, services to be scheduled from the line unit and/or the data service access processing unit to the service scheduling units;
• in case the service scheduling units both operate normally, receiving by the cross-connecting unit service streams from the service scheduling units, which are cross-scheduled to the line unit and/or the data service access processing unit in the digital communication system;
• and
• in case one of the service scheduling units fails, reporting by the failed service scheduling unit the fault to a control unit which instructs the cross-connecting unit to switch a service originally assigned to the failed one to the normally-operating scheduling unit to continue the service scheduling process, or reporting by the failed one the fault to the cross-connecting unit which switches a service originally assigned to the failed one to the normally-operating one to continue the service scheduling process.

A packet service scheduling method for a digital communication system comprising a line unit, a data service access processing unit and a cross-connecting unit, comprising:

• configuring two service scheduling units with identical functions and configurations to be connected with the cross-connecting unit and the data service access processing unit in the digital communication system;
• assigning, by the cross-connecting unit and/or the data service access processing unit, services to be scheduled to the service scheduling units;
• in case the service scheduling units both operate normally, receiving by the cross-connecting unit service streams from the service scheduling units, which are cross-scheduled to the line unit and/or the data service access processing unit in the digital communication system;
• and
• in case one of the service scheduling units fails, reporting by the failed service scheduling unit the fault to a control unit which instructs the cross-connecting unit to switch a service originally assigned to the failed one to the normally-operating one to continue the service scheduling process, or reporting by the failed one the fault to the cross-connecting unit which switches a service originally assigned to the failed one to the normally-operating one to continue the service scheduling process.