Multimedia Stream Transmission via Border Module Path Predetermination
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Solution Overview
Problem
Existing methods for transmitting multimedia data in real-time over wireless networks fail to consistently guarantee quality of service due to variable bit rates and limited resources, leading to packet loss and inefficient resource allocation.
Innovation Solution
The method involves border modules determining network topology and link states to predetermine an optimal path for data streams, implementing necessary resources, and defining routing rules to ensure quality of service, while compressing and decompressing packet headers to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If admission control is implemented to control available bandwidth, then quality of service is improved, but bandwidth availability during transmission deteriorates due to variable link speeds
Solution Approach 1:
The patent performs preliminary actions by determining network topology and link states before transmission, and predetermining the path for all session streams in advance. This allows the system to prepare optimal routes and reserve resources before actual data transmission begins, ensuring quality of service is maintained even when link speeds vary during transmission.
Solution Approach 2:
The patent implements feedback mechanisms by continuously monitoring link states and network conditions, then using this information to dynamically adjust path determination and resource allocation. The border modules use real-time link state information to make informed decisions about stream transmission, ensuring bandwidth availability is maintained despite variable link speeds.
2Reliability
If resource reservation protocol is coupled with admission control to guarantee bandwidth, then quality of service is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into the border modules, which perform admission control, path determination, resource reservation, and stream transmission management all in one component. This consolidation reduces overall system complexity while maintaining the bandwidth guarantee capabilities that would otherwise require separate, complex interactions between multiple protocols and components.
Solution Approach 2:
The border modules are designed as multi-functional components that handle diverse tasks including topology determination, link state monitoring, path predetermination, resource reservation, and stream transmission. This universality eliminates the need for separate specialized components for each function, thereby reducing device complexity while ensuring quality of service.
3Ease of operation
If traditional layered protocol architecture is used, then ease of operation is maintained, but quality of service cannot be satisfied due to inter-layer dependencies in wireless networks
Solution Approach 1:
The patent introduces dynamic path determination that adapts to real-time network conditions and link states. Instead of static routing based on traditional layered protocols, the system dynamically selects and predetermines optimal paths for stream transmission, allowing the network to respond to changing wireless conditions while maintaining quality of service requirements.
Solution Approach 2:
The border modules act as intermediaries between the traditional layered protocol architecture and the dynamic wireless network environment. They translate high-level quality of service requirements into specific path determination and resource allocation decisions, mediating between the simplicity of layered protocols and the complexity of wireless network conditions.
4Adaptability or versatility
If variable bit rate links are used for radio transmission, then adaptability to instantaneous needs is improved, but packet loss increases due to bandwidth reduction
Solution Approach 1:
The patent performs preliminary path determination and resource reservation based on current network conditions before transmission begins. By predetermining the path and allocating resources in advance, the system prepares to handle variable bit rate links appropriately, ensuring packet delivery reliability even when bandwidth fluctuates during transmission.
Solution Approach 2:
The system uses feedback from link state monitoring to continuously assess network conditions and adjust resource allocation accordingly. This feedback mechanism allows the system to respond to bandwidth reductions on variable bit rate links by reallocating resources or adjusting transmission parameters, thereby preventing packet loss while maintaining adaptability to instantaneous needs.
Data Source
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AI summary
This method of transmitting data streams of a multimedia session between a first and a second terminal (1, 2) through a telecommunication network (3) comprising a network core (4) comprises the determination by border modules (20, 20', 20''), points of access to said network core (4), of the routing topology and of the state of the links (7, 16) of the network, the determination of parameters of the session, the selecting of input and output border modules (20', 20'') of the network core (4) for said streams, the predetermination of a path, between the input and output border modules (20', 20''), for all the streams of the session, the setting up of resources along the path, the defining of routing rules at the routing modules (18) situated along said path, and the transmission of the streams only by said path.