Location Measurement Reporting Scheduling in Wireless Networks
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Solution Overview
Problem
Wireless local area networks (WLANs) face challenges in efficiently managing resources to provide bandwidth and response times due to multiple devices sharing the same resources, with limitations from communication protocols and hardware bandwidth, especially when operating with both new and legacy devices.
Innovation Solution
The implementation of a radio architecture that includes a front-end module, radio IC circuitry, and baseband processing circuitry to manage and schedule location measurement reports, traffic indication maps, and other information during beacon intervals, based on Time-Waiting Thresholds (TWTs), allowing for coexistence of WLAN and Bluetooth functionalities and efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices share the same WLAN resources, then device connectivity and network coverage are improved, but resource contention and bandwidth limitations worsen
Solution Approach 1:
The patent segments the WLAN resource allocation by introducing separate Traffic Indication Maps (TIMs) for different device types (legacy and HE devices). This segmentation allows the network to manage resources in distinct groups, reducing contention between device types while maintaining overall connectivity. The TIM segmentation enables targeted resource allocation without requiring all devices to compete for the same channel resources.
Solution Approach 2:
The patent implements dynamic resource allocation through scheduled beacon intervals and TWT-based resource reservation. The system dynamically adjusts resource allocation based on device type, traffic patterns, and network conditions. This dynamic approach allows the network to optimize bandwidth utilization while maintaining support for multiple device types with different requirements.
2Adaptability or versatility
If newer protocols and legacy device protocols operate simultaneously, then network compatibility and device support are improved, but protocol interference and resource management complexity worsen
Solution Approach 1:
The patent segments protocol handling by creating separate TIM structures for legacy devices and HE devices. This segmentation allows the network to manage different protocol requirements independently, reducing the complexity of coordinating between protocols. Each TIM can be optimized for its target device type without interfering with the other protocol's resource allocation.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a unified resource allocation framework that mediates between legacy and HE protocol requirements. The scheduled beacon intervals and TWT structures act as intermediaries that translate and coordinate resource allocation across different protocol domains, simplifying the overall management complexity.
3Measurement precision
If location measurement reports and traffic indication maps are transmitted frequently, then location accuracy and traffic management are improved, but network overhead and bandwidth consumption worsen
Solution Approach 1:
The patent implements periodic transmission of location measurement reports and TIMs through scheduled beacon intervals. This periodic action allows the system to maintain accurate location information and traffic management while optimizing bandwidth usage by transmitting data only at scheduled intervals rather than continuously. The periodic structure reduces overhead while preserving measurement precision.
Solution Approach 2:
The patent uses dynamic TWT-based scheduling to adjust the frequency and timing of report transmissions based on actual network conditions and device requirements. This dynamic approach allows the system to maintain high location accuracy when needed while reducing bandwidth consumption during periods of lower activity or when devices are in power-saving mode.
Data Source
AI summary
Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of an initiator station (ISTA), where the apparatus comprises processing circuitry configured to encode a null data packet announce (NDPA) frame for transmission to a responder station (RSTA), the NDPA frame indicating a sounding sequence number, and encode a first null data packet (NDP) for transmission at a time T1 to the RSTA. The processing circuitry may be further configured to: decode a second NDP, the second NDP received from the RSTA, wherein the second NDP is received at a time T4, and decode a first location measurement report (LMR). The processing circuitry may be further configured to in response to an ISTA-to-RSTA LMR feedback agreement between the RSTA and ISTA indicating the ISTA is to send a second LMR, encode a second LMR.