Home Network Admission Control via Bandwidth Path Verification
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Solution Overview
Problem
Conventional home networking systems face challenges in maintaining network quality, particularly during congestion, as random back-off mechanisms fail to ensure immediate transmission of real-time packets, leading to a decline in service quality.
Innovation Solution
A home networking system with an admission control method that includes a media server and base stations, where terminal stations request bandwidth through a padding information column specifying a routing path, required bandwidth, and compression format, allowing the media server to assess available bandwidth and admit or reject requests based on availability, with priority settings and substitution procedures to manage bandwidth efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a random back-off mechanism is used for packet transmission, then collision avoidance is achieved, but real-time packet transmission is delayed causing network quality decline
Solution Approach 1:
The patent changes the transmission parameter by introducing a priority field in the packet header that indicates real-time requirements. This allows the system to differentiate between regular and real-time packets, enabling selective handling that reduces delay for time-sensitive traffic while maintaining collision avoidance through the back-off mechanism for non-real-time packets.
Solution Approach 2:
The patent implements dynamic transmission behavior by allowing packets to be transmitted immediately if the channel is idle and the packet has real-time priority, rather than always applying the random back-off mechanism. This dynamic adjustment based on packet type and channel status reduces unnecessary delays for real-time traffic while preserving collision avoidance capabilities.
2Adaptability or versatility
If bandwidth is allocated without admission control, then network flexibility is maintained, but network quality deteriorates during congestion
Solution Approach 1:
The patent implements preliminary action by performing admission control before bandwidth allocation. The system evaluates whether sufficient bandwidth is available before admitting new traffic flows, preventing congestion before it occurs. This proactive approach maintains network quality by ensuring that allocated bandwidth is sufficient for admitted traffic while preserving flexibility for future admissions.
Solution Approach 2:
The patent uses feedback mechanisms where the system continuously monitors bandwidth utilization and network status, then adjusts admission decisions accordingly. When bandwidth becomes congested, the admission control mechanism receives feedback about the degraded state and prevents further admissions that would worsen conditions, thereby maintaining network quality while adapting to changing network conditions.
Data Source
AI summary
The invention discloses a home networking system and an admission control method for the home networking system. First, a first request information representative of a first traffic request for a terminal station is received. The first request information includes a first padding information column which includes a first routing path, a first required bandwidth, and a first compression format corresponding to the first required bandwidth. Subsequently, according to the first routing path and the first required bandwidth, it is judged whether one available bandwidth allocated to each link of the first routing path satisfies the first required bandwidth. If YES, the first traffic in the first compression format is admitted.