Cable modem network system and method for selecting upstream channel in cable modem
First Claim
1. A cable modem network system, comprising:
- a CMTS (cable modem termination system) grouping cable modems by a certain units and transmitting UCDs (upstream channel descriptors) information including upstream channel group information according to the grouping; and
a cable modem selecting an upstream channel on the basis of the upstream channel group information included in the UCDs information and preset upstream channel information.
1 Assignment
0 Petitions
Accused Products
Abstract
In a cable modem network system and a method for selecting an upstream channel in a cable modem, a time required for an initialization of a cable modem can be reduced by grouping cable modems by a certain units and selecting an upstream channel on the basis of upstream channel group information and preset upstream channel information. A cable modem network system includes a CMTS (cable modem termination system) grouping cable modems by a certain units and transmitting UCDs (upstream channel descriptors) information including upstream channel group information according to the grouping and a cable modem selecting an upstream channel on the basis of the upstream channel group information included in the UCDs information and preset upstream channel information.
-
Citations
27 Claims
-
1. A cable modem network system, comprising:
-
a CMTS (cable modem termination system) grouping cable modems by a certain units and transmitting UCDs (upstream channel descriptors) information including upstream channel group information according to the grouping; and
a cable modem selecting an upstream channel on the basis of the upstream channel group information included in the UCDs information and preset upstream channel information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. In a cable modem transmitting/receiving data to/from a CMTS (cable modem termination system) through a cable, the cable modem, comprising:
-
a memory grouping cable modems by a certain units and storing upstream channel group information according to the grouping; and
a CPU (Central Processing Unit) selecting an upstream channel on the basis of upstream channel group information outputted from the CMTS and the stored upstream channel information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 24, 25, 26, 27)
-
-
18. A method for selecting an upstream channel in a cable modem, comprising:
-
grouping cable modems by a certain units and setting upstream channel group information according to the grouping; and
selecting an upstream channel on the basis of the upstream channel group information set by the CMTS and preset upstream channel information.
-
-
23. A method for selecting an upstream channel in a cable modem, comprising:
-
receiving UCD (upstream channel descriptor) information corresponded to upstream channel group information pre-stored in a cable modem from UCD information transmitted from a CMTS (cable modem termination system); and
selecting an upstream channel on the basis of the received UCD information.
-
Specification