TROUBLESHOOTING WI-FI CONNECTIVITY BY MEASURING THE ROUND TRIP TIME OF PACKETS SENT WITH DIFFERENT MODULATION RATES

摘要

THE APPLICATION RELATES TO A “WIRELESS COMMUNICATION NETWORK INCLUDING A STATION AND AN ACCESS POINT” WHICH IS IN PARTICULAR A WI-FI NETWORK ACCORDING TO THE IEEE 802.11 STANDARDS. INTERNET SERVICE PROVIDERS ARE SEARCHING FOR WAYS TO GET A BETTER UNDERSTANDING OF THE END-USER’S WIRELESS ENVIRONMENT INCLUDING LINK QUALITY AND PERFORMANCE. THE PROPOSED METHOD CALCULATES A PERFORMANCE VALUE BASED ON MEASURED ROUND TRIP TIMES WHICH ARE SENT AT DIFFERENT MODULATION RATES. BASED THE CHANGE OF PERFORMANCE IN DEPENDENCE OF THE MODULATION RATE CONCLUSIONS ABOUT THE POSSIBLE SOURCE OF PERFORMANCE PROBLEMS CAN BE DRAWN, IN PARTICULAR IT CAN BE DISTINGUISHED BETWEEN (BLUETOOTH) INTERFERENCE (C AND E) AND DISTANCE BETWEEN STATION AND ACCESS POINT BEING TOO LARGE (B). THE MOST ILLUSTRATIVE DRAWING IS FIG. 2.