Wireless Station QoS Aggregation and Resource Allocation
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Solution Overview
Problem
Existing wireless communication networks face challenges in efficiently configuring Quality of Service (QoS) and utilizing radio resources for calls, leading to potential service quality issues and inefficient resource allocation.
Innovation Solution
A station in a wireless network detects suitable access points based on signal strength and error rates, requests radio resources for traffic and signaling flows, aggregates QoS for multiple applications, and dynamically adjusts resource allocation to ensure optimal service quality during call setup and handoff, thereby optimizing radio resource utilization and maintaining service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the station requests radio resources for both traffic and signaling flows simultaneously, then the call setup process is simplified, but the resource allocation efficiency deteriorates due to potential resource conflicts and delays
Solution Approach 1:
The patent segments the resource request process into two distinct phases: first requesting radio resources for traffic flows, then separately requesting resources for signaling flows. This segmentation allows the system to prioritize traffic resources while managing signaling resources separately, resolving the contradiction between simplified call setup and efficient resource allocation.
2Device complexity
If the station aggregates QoS for all applications before requesting resources, then the resource request process is simplified, but the adaptability to changing network conditions deteriorates
Solution Approach 1:
The patent implements dynamic QoS aggregation where the station initially aggregates QoS for resource requests, but maintains the capability to update and re-aggregate QoS parameters when network conditions change or new applications are added. This dynamic approach balances process simplicity with adaptability to changing conditions.
3Reliability
If the station requests higher QoS to ensure service quality, then the service quality is improved, but the radio resource utilization efficiency deteriorates due to excessive resource allocation
Solution Approach 1:
The patent employs parameter adjustment mechanisms where the station requests QoS parameters based on actual application requirements and network conditions. The system dynamically adjusts QoS parameters (such as data rate, delay tolerance) to match actual needs, preventing both over-allocation and under-allocation of resources, thus resolving the contradiction between service quality and resource efficiency.
Data Source
AI summary
Techniques to configure quality of service (QoS) and utilize radio resources for a call in a WLAN are described. In an aspect, a station ensures that an access point in the WLAN is suitable for receiving service prior to performing registration to receive services via the WLAN. In another aspect, the station first requests for radio resources for traffic flows, then requests for radio resources for signaling flows, and sends signaling as best effort traffic if radio resources are not granted for the signaling flows. In yet another aspect, the station aggregates QoS for multiple applications and requests for radio resources based on the aggregated QoS. In yet another aspect, the station releases extra radio resources corresponding to the difference between the QoS granted by the WLAN and the QoS proposed by a remote terminal for the call. In yet another aspect, the station requests for the same QoS or lower from a new access point during handoff.