Initial Control and Response Frames for Dynamic TxOP Allocation
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Solution Overview
Problem
Efficient use of wireless local-area network resources is hindered by devices with varying communication protocols and hardware limitations, leading to bandwidth constraints and suboptimal response times.
Innovation Solution
A radio architecture that integrates WLAN and Bluetooth functionalities, utilizing FEM, radio IC, and baseband processing circuitry to enable efficient coexistence and communication in multiple protocols, including IEEE 802.11 standards, with features like OFDM and OFDMA, and supports devices with different SNR levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices share the same wireless resources, then network coverage and device compatibility are improved, but bandwidth utilization and response times deteriorate
Solution Approach 1:
The patent segments the wireless transmission opportunity into multiple resource units (RUs) that can be independently allocated to different devices. This segmentation allows the system to divide the available bandwidth into smaller chunks and assign them based on device capabilities and requirements, thereby improving overall bandwidth utilization while maintaining compatibility with diverse devices including legacy devices.
Solution Approach 2:
The patent implements dynamic resource allocation where the access point can adjust the size and assignment of resource units in real-time based on current network conditions, device capabilities, and traffic requirements. This dynamic approach enables the system to optimize bandwidth utilization for each transmission opportunity while accommodating devices with varying protocol support and hardware capabilities.
2Productivity
If resource allocation is optimized for newer protocols, then throughput and efficiency are improved, but compatibility with legacy devices deteriorates
Solution Approach 1:
The patent applies local quality by assigning different resource unit sizes and characteristics to different devices based on their specific capabilities. Newer devices with advanced hardware can receive larger or more efficient resource allocations, while legacy devices receive appropriately sized resource units that match their capabilities. This localized optimization ensures high throughput for capable devices while maintaining compatibility with legacy devices.
Solution Approach 2:
The resource allocation mechanism is designed to be universal, supporting both legacy devices and newer protocol-compliant devices through the same framework. The system can allocate resource units in a manner that works across different device types and protocol versions, enabling a single resource allocation system to serve multiple device categories effectively.
3Productivity
If transmission opportunity duration is extended, then data throughput is improved, but response time for time-sensitive applications deteriorates
Solution Approach 1:
The patent enables dynamic adjustment of transmission opportunity duration and resource unit allocation based on traffic priority and application requirements. Time-sensitive applications can be assigned shorter transmission opportunities with higher priority resource units, while bulk data transfers can utilize longer transmission opportunities. This dynamic approach allows the system to optimize both throughput and response time depending on the specific traffic requirements.
Solution Approach 2:
The system incorporates feedback mechanisms where devices can indicate their urgency requirements and the access point can adjust subsequent resource allocations accordingly. This feedback loop enables the system to respond to time-sensitive applications by allocating appropriate transmission opportunities that balance throughput requirements with response time constraints.
Data Source
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AI summary
Methods, apparatuses, and computer readable media for initial control and response frames, where an apparatus of an access point (AP) comprises processing circuitry configured to: encode, for transmission to a station (STA), an initial control frame comprising a transmission opportunity (TxOP) duration and information regarding the TxOP, and decode, from the STA, an initial control response frame, the initial control response frame comprising an availability of the STA during the TxOP. The STA may determine not to participate in the TxOP to operate on another radio. The AP may modify the parameters of the TxOP based on the initial control response frame received from the STA.