CMTS Selective MTC Mode Control for Cable Modems
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Solution Overview
Problem
Existing DOCSIS systems lack the ability for system operators to control and selectively enable Multiple Transmit Channel (MTC) mode operations for cable modems capable of MTC mode, leading to unnecessary or premature enabling of MTC mode for all capable devices within a MAC domain, which can cause inefficiencies during upgrades, service activation, or traffic management.
Innovation Solution
Implementing a control attribute in the CMTS that allows system operators to conditionally enable or disable MTC mode operations for individual cable modems based on specific criteria, such as service flow, payment status, or traffic conditions, enabling selective management of MTC mode operations within a MAC domain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the CMTS enables MTC mode operations for all capable cable modems in a MAC domain, then the upstream channel bonding capability is maximized, but the system operator loses the ability to selectively control which modems operate in MTC mode, causing inefficiencies during upgrades and service activation
Solution Approach 1:
The patent applies local quality by enabling selective MTC mode activation for individual cable modems within a MAC domain. The CMTS maintains a list of modems eligible for MTC mode and can selectively enable or disable MTC operations for specific modems based on local conditions such as service flow requirements, payment status, or traffic conditions, rather than uniformly enabling MTC for all capable modems
Solution Approach 2:
The patent implements dynamics by making the MTC mode enablement status changeable over time for each modem. The CMTS can dynamically add or remove modems from the MTC-eligible list based on evolving network conditions, service requirements, or operational needs, allowing the system to adapt between maximizing bonding capability and maintaining selective control
2Adaptability or versatility
If the CMTS maintains selective control over MTC mode enablement for individual cable modems, then operational flexibility is improved, but the system complexity increases due to additional control mechanisms required
Solution Approach 1:
The patent applies self-service by having the CMTS automatically determine and maintain the list of modems eligible for MTC mode based on pre-defined criteria. The system autonomously manages the selective enablement without requiring complex manual configuration or external control mechanisms, reducing operational complexity while maintaining flexibility
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a maintained list of MTC-eligible modems at the CMTS. This list acts as a simplified control structure that mediates between the desire for selective control and system complexity, providing a straightforward data structure that the CMTS uses to make enablement decisions
3Productivity
If MTC mode is enabled for all capable cable modems immediately, then the network utilizes full bonding potential, but premature enabling causes inefficiencies during network upgrades and service activation
Solution Approach 1:
The patent applies preliminary action by having the CMTS pre-identify and maintain a list of cable modems that are capable of MTC mode operations before actually enabling MTC for them. This preliminary assessment allows the system to prepare for future MTC enablement while avoiding premature activation, enabling controlled rollout during upgrades and service activation
Data Source
AI summary
Methods and apparatuses for enabling or disabling MTC mode operations for a plurality of CPE devices in a MAC domain are provided. A system operator can control enabling MTC mode operations for certain CPE devices capable of MTC mode operations in a MAC domain by setting a control attribute in a CMTS enabled for MTC mode operations for the MAC domain.