Cross-Technology Spectrum Sharing With Synchronized WLAN Signaling
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Solution Overview
Problem
Interference between cellular and WLAN protocol communications degrades throughput, wastes signaling resources, and increases latency due to separate scheduling of wireless spectrum sharing.
Innovation Solution
Utilizing a WLAN or Wi-Fi waveform for cross-technology signaling, where a UE transmits spectrum sharing information to a wireless station (STA) to manage spectrum sharing, including actions like limiting non-cellular communications or reducing power, and employing configured gaps with synchronization for reliable detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate scheduling is used for cellular and WLAN protocol communications, then each technology can operate independently, but interference occurs between the two technologies degrading throughput and increasing latency
Solution Approach 1:
The patent merges the scheduling of cellular and WLAN protocol communications into a unified cross-technology signaling framework. The cellular entity and WLAN entity coordinate through shared signaling mechanisms, allowing them to operate as an integrated system rather than independent entities, thereby eliminating interference while maintaining operational independence.
Solution Approach 2:
The patent introduces cross-technology signaling as an intermediary mechanism between cellular and WLAN entities. This signaling acts as a mediator that coordinates resource allocation and transmission timing between the two technologies, preventing direct interference while enabling cooperative spectrum sharing.
2Adaptability or versatility
If separate scheduling is used for cellular and WLAN protocol communications, then each technology maintains its own protocol stack, but signaling resources are wasted due to lack of coordination
Solution Approach 1:
The patent creates a universal cross-technology signaling framework that serves multiple functions: it enables coordination between different technologies, shares resource allocation information, and provides a common interface for interference management. This multi-functional signaling approach eliminates redundant signaling while preserving protocol-specific independence.
3Productivity
If spectrum sharing information is transmitted without configured gaps and synchronization, then signaling can be continuous, but detection reliability decreases
Solution Approach 1:
The patent implements preliminary actions by configuring specific time gaps and establishing synchronization before spectrum sharing information transmission. These preparatory measures ensure that receiving entities are ready to detect and process signaling accurately, improving detection reliability while maintaining signaling efficiency through proper resource allocation.
Solution Approach 2:
The patent incorporates feedback mechanisms where entities confirm successful reception and interpretation of spectrum sharing information. This feedback loop allows for verification of detection reliability and enables retransmission or adjustment of signaling parameters if detection fails, ensuring both efficiency and reliability.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless station may receive spectrum sharing information from a network entity or a user equipment (UE). The wireless station may perform an action associated with sharing a spectrum with cellular communications. Numerous other aspects are described.