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Cable modem termination system and method

A modem and online system technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as inability to connect to the network, failure of CMTS system 3 to notify user terminal equipment 1, and disconnection in time

Inactive Publication Date: 2011-04-20
AMBIT MICROSYSTEMS (SHANGHAI) LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the user terminal device 1 is connected through the modem 2, there will be a disconnection problem in the DOCSIS system. Although the CMTS system 3 can ensure that the modem 2 is connected to the network, the user terminal device 1 connected behind the modem 2 cannot. connected to the network
When the modem 2 changes the radio frequency channel (such as the radio frequency channel 22) connected to a different IP address, the CMTS system 3 cannot notify the user terminal device 1 in time, but the user terminal device 1 retains the old IP address, causing the user terminal device 1 Although I have an IP address, I cannot connect to the network

Method used

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  • Cable modem termination system and method
  • Cable modem termination system and method
  • Cable modem termination system and method

Examples

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Embodiment Construction

[0013] Such as figure 2 As shown, it is a structure diagram of a preferred embodiment of a cable modem termination system (CMTS system 3 for short) of the present invention. The CMTS system 3 and the modem 2 can be connected through multiple radio frequency channels, and each radio frequency channel corresponds to an IP address. The modem 2 can be connected to the CMTS system 3 through one of the radio frequency channels, and the user terminal equipment 1 communicates with the CMTS system 3 through the modem 2 . The CMTS system 3 is connected to a dynamic host configuration protocol (dynamic host configuration protocol, DHCP) server 4 through a network. When the user terminal equipment 1 communicates with the CMTS system 3 through the modem 2 , the DHCP server 4 configures an IP address for each user terminal equipment 1 .

[0014] The CMTS system 3 includes a disconnection connection unit 30, which is used to notify the user terminal equipment 1 to request the DHCP server ...

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PUM

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Abstract

The invention relates to cable modem termination system and method. The cable modem termination system is connected with a dynamic host configuration protocol (DHCP) server through a network and is connected with customer premise equipment through a cable modem; the cable modem termination system comprises a disconnection termination unit; and when the cable modem changes a radio-frequency channel to carry out network communications, the disconnection termination unit informs the customer premise equipment of requesting for the IP address reallocation from the DHCP server, and the customer premise equipment is connected to the network to carry out network communication according to the IP address. According to the invention, the disconnection of the customer premise equipment to the network can be prevented when the cable modem changes the radio-frequency channel, thus the customer premise equipment can request for the IP address reallocation from the DHCP server so as to be connected to the network to carry out network communications without being restarted.

Description

technical field [0001] The invention relates to a network connection system and method, in particular to a cable modem connection system and method. Background technique [0002] In the data over cable service interface specification (DOCSIS) system, there are multiple radio frequency channels (RF channels) coexisting in the same coaxial cable (coaxial cable), and the modem (modem) only uses these radio frequencies A certain radio frequency channel in the channel, usually the IP address (IP domain) corresponding to each radio frequency channel is different. When the modem is connected to different radio channels, the customer premises equipment (CPE) connected behind the modem should get different IP addresses. If the modem is connected to a radio frequency channel with a different IP address, the CPE connected behind the modem may be disconnected, because the IP address of the user terminal device will not change automatically before the expiration date of the IP address o...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L29/12H04L1/16
CPCH04L61/2015H04L12/2878H04L12/2801H04L61/5014
Inventor 许绿萌罗佑铭
Owner AMBIT MICROSYSTEMS (SHANGHAI) LTD
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