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Bluetooth SIG Coexistence Working Group

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Presentation on theme: "Bluetooth SIG Coexistence Working Group"— Presentation transcript:

1 Bluetooth SIG Coexistence Working Group
<month year> doc.: IEEE <doc#> July, 2001 Bluetooth SIG Coexistence Working Group Tod Sizer Chair, Coexistence Working Group Bluetooth Special Interest Group Bell Laboratories Tod Sizer, Lucent Technologies / Bell Laboratories <author>, <company>

2 Bluetooth SIG Coexistence Working Group Liason Update
<month year> doc.: IEEE <doc#> July, 2001 Bluetooth SIG Coexistence Working Group Liason Update Survey and Testing Finishing Multiple Interferers Adaptive Frequency Hopping Specification Improvements Tod Sizer, Lucent Technologies / Bell Laboratories <author>, <company>

3 Survey and Testing Finishing
July, 2001 Survey and Testing Finishing Working Group has been performing a survey of Bluetooth Interferers Bluetooth 802.11b HomeRF Wide Band Frequency Hoppers Microwave Ovens RFID Devices Cordless Phones Live quantitative testing has been performed. Simulation tools have been written and employed for studying several of the interferers in depth. Results from the simulations and testing are being documented presently. Tod Sizer, Lucent Technologies / Bell Laboratories

4 July, 2001 Multiple Interferers Starting closer study on the effect of Multiple Interferers on Bluetooth Traffic models will have a dramatic effect on the magnitude/validity of the results. Suggestions on likely scenarios of operations we should consider would be welcomed. Tod Sizer, Lucent Technologies / Bell Laboratories

5 Adaptive Hopping to Avoid Interference
July, 2001 Adaptive Hopping to Avoid Interference 2.4 GHz ISM Band Static Interferer Bluetooth 1.0 Adaptive Hopping When no interference is detected, hop over the entire frequency band. When interference is detected at a level which will cause packet errors to Bluetooth, actively avoid these frequency hop locations. This technique is currently legal for Class 3 Bluetooth units. The use of intelligence to avoid interference is legal at all powers, however, the required number of hop locations must be maintained. Tod Sizer, Lucent Technologies / Bell Laboratories

6 Adaptive Frequency Hopping
July, 2001 Adaptive Frequency Hopping FCC has issued an NPRM which would allow Adaptive Frequency Hopping (among other changes in the band) We feel that AFH shows the greatest promise in improving coexistence issues with frequency-static devices. Your company’s support with the FCC on this issue would be appreciated. Tod Sizer, Lucent Technologies / Bell Laboratories

7 Specification Improvements
July, 2001 Specification Improvements The next working group task will be to move to specification improvements to improve coexistence. Adaptive frequency hopping algorithms and implementation Power control algorithms and implementation. (tbd improvements) Tod Sizer, Lucent Technologies / Bell Laboratories

8 July, 2001 Coordination Chair of and Chair of Bluetooth Coexistence Working Group are members of each others’ group. Managing concerns which have been raised from each of the groups. Look forward to continued cooperation, particularly in the areas of Adaptive Frequency Hopping and MAC layer simulations. Tod Sizer, Lucent Technologies / Bell Laboratories

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