Data processing method and cable modem termination system

A data processing method, comprising:

• sending, by a cable modem termination system (CMTS), a dynamic bonding change (DBC) request to a cable modem (CM), wherein the DBC request is used to request the CM to change an interval usage code (IUC) group corresponding to an upstream channel from a first IUC group to a second IUC group, the first IUC group is an IUC group currently supported by the CM, and at least one target IUC in the second IUC group is not in the first IUC group;
• when the CMTS receives a first upstream bandwidth allocation request sent by the CM, allocating, by the CMTS, an upstream bandwidth to the CM by using any IUC in the first IUC group, to obtain a first result, and allocating an upstream bandwidth to the CM by using the target IUC, to obtain a second result;
• sending, by the CMTS, the first result and the second result to the CM;
• and
• when the CMTS receives a second upstream bandwidth allocation request sent by the CM, allocating, by the CMTS, an upstream bandwidth to the CM by using any IUC in the second IUC group.

A CMTS, comprising:

• a processor, a transmitter, and
• a computer readable storage medium storing a plurality of processor-executable instructions that, when executed by the processor, cause the processor and the transmitter to perform operations comprising:
• sending a dynamic bonding change (DBC) request to a cable modem (CM), wherein the DBC request is used to request the CM to change a modulation profile group corresponding to the downstream channel from a first profile group to a second profile group, the first profile group is a profile group currently supported by the CM, and at least one target profile in the second profile group is not in the first profile group;
• sending a first downstream data packet to the CM by using any profile in the first profile group, and sending a second downstream data packet to the CM by using the at least one target profile, wherein the first downstream data packet is the same as the second downstream data packet;
• and
• sending a third downstream data packet to the CM by using any profile in the second profile group.

A CMTS, comprising:

• a processor, a transmitter, and
• a computer readable storage medium storing a plurality of processor-executable instructions that, when executed by the processor, cause the processor and the transmitter to perform operations comprising:
• sending a dynamic bonding change (DBC) request to a cable modem CM, wherein the DBC request is used to request the CM to change an interval usage code (IUC) group corresponding to an upstream channel from a first IUC group to a second IUC group, the first IUC group is an IUC group currently supported by the CM, and at least one target IUC in the second IUC group is not in the first IUC group;
• when the CMTS receives a first upstream bandwidth allocation request sent by the CM, allocating an upstream bandwidth to the CM by using any IUC in the first IUC group, to obtain a first result, and allocating an upstream bandwidth to the CM by using one of the at least one target IUC, to obtain a second result;
• sending the first result and the second result to the CM;
• and
• when the CMTS receives a second upstream bandwidth allocation request sent by the CM, allocating an upstream bandwidth to the CM by using any IUC in the second IUC group.