QoS Packet Flow Segmentation in Wireless Networks
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Solution Overview
Problem
Current wireless communication systems face challenges in providing quality of service (QoS) on a per-application-flow basis, particularly in managing bandwidth, delay, and jitter requirements for diverse applications like VoIP, video conferencing, and online gaming, due to limitations in existing CDMA and packet-switching network standards.
Innovation Solution
A method and apparatus for wireless communications that allow for the separation and mapping of packet flows based on indicated QoS treatments, involving requests to install packet filters and map packets onto wireless air interfaces, with mechanisms to rescind requests in case of failures, ensuring efficient resource management and optimal QoS delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If packet flows are separated and mapped based on QoS treatments, then bandwidth and delay optimization is achieved, but system complexity increases due to multiple packet filters and mapping requests
Solution Approach 1:
The patent segments packet streams into multiple packet flows based on QoS requirements, separating real-time traffic from non-real-time traffic. This segmentation allows different QoS treatments to be applied to different flows, optimizing bandwidth utilization while maintaining manageable system complexity through structured organization.
Solution Approach 2:
The patent introduces QoS classification mechanisms and packet filters as intermediary components that mediate between incoming packet streams and the network infrastructure. These intermediaries automatically classify and route packets according to QoS parameters, reducing the complexity burden on end systems while achieving efficient bandwidth management.
2Reliability
If multiple packet flows with different QoS requirements are managed, then service quality for diverse applications is improved, but the difficulty of detecting and measuring QoS parameters increases
Solution Approach 1:
The patent implements feedback mechanisms where QoS parameters are continuously monitored and measured for each packet flow. The system detects QoS violations and adjusts packet filtering and mapping decisions based on this feedback, enabling reliable QoS delivery while automating the measurement process to reduce manual intervention complexity.
Solution Approach 2:
The patent replaces manual QoS parameter measurement and adjustment with automated electronic detection and control mechanisms. Packet filters and mapping algorithms automatically detect QoS requirements and adjust traffic flow accordingly, substituting complex manual measurement processes with streamlined electronic systems.
3Reliability
If packet filters are installed and mapping requests are processed, then QoS treatment is achieved, but transmission time increases due to additional processing steps
Solution Approach 1:
The patent performs QoS classification and packet filter installation in advance, before actual data transmission begins. By pre-configuring packet filters and mapping rules based on anticipated QoS requirements, the system minimizes processing delays during active transmission while ensuring QoS treatment is already in place.
Solution Approach 2:
The patent optimizes the packet filtering and mapping process to skip unnecessary processing steps for packets that already match established QoS patterns. Once QoS rules are configured, the system rapidly processes subsequent packets through streamlined filtering paths, reducing transmission time while maintaining QoS integrity.
Data Source
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AI summary
A method of signal transmission according to one embodiment includes requesting a packet data serving node to filter a specified traffic flow from among a stream of packets. The method also includes requesting a radio access network to provide an indicated quality-of-service (QoS) treatment for the flow over a wireless air interface. The method further includes rescinding the request to filter or the request to provide a QoS treatment in response to a failure of the other request.