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Coexistence Liaison Report #1

Coexistence Liaison Report #1. Face-to-Face Meeting 2 days in New Jersey in June Co-located with Radio 2 Group Completed MRD Weekly conference calls Input to the BT SIG Program Managers on FCC NPRM. Coexistence Liaison Report #1. Bluetooth Coexistence Working Group

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Coexistence Liaison Report #1

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  1. Coexistence Liaison Report #1 • Face-to-Face Meeting • 2 days in New Jersey in June • Co-located with Radio 2 Group • Completed MRD • Weekly conference calls • Input to the BT SIG Program Managers on FCC NPRM Richard Ditch, Motorola

  2. Coexistence Liaison Report #1 • Bluetooth Coexistence Working Group • Chartered by Bluetooth SIG to address coexistence issues of Bluetooth with other devices operating in the 2.4 GHz ISM unlicensed band • Chaired by Tod Sizer of Lucent • Members include Lucent, Motorola, Ericsson, Toshiba, 3COM Richard Ditch, Motorola

  3. Coexistence Liaison Report #1 • Assumptions • Simulations • Results • Recommendations Richard Ditch, Motorola

  4. Coexistence Liaison Report #1 • Usage Model Assumptions • Environments (lead to Loss Models) • Expected Interfering Systems • Application mix • Traffic Density Richard Ditch, Motorola

  5. Coexistence Liaison Report #1 • Environments • Residential - US • Residential - Europe • Office - cubes • Office - closed • Apartment Building • Airport, Shopping Mall, Factory • Outdoors Richard Ditch, Motorola

  6. Coexistence Liaison Report #1 • General Residential 1 (US) Environment • single family home • 2 story • floor height - not specified • 2500 square foot • wood frame construction • 1/4 acre lot Richard Ditch, Motorola

  7. Coexistence Liaison Report #1 • General Residential 2 (Europe) Environment • single family home • 3 story • floor height - not specified • 180 square meters • brick walls, reinforced concrete floors • 1/10 acre lot Richard Ditch, Motorola

  8. Coexistence Liaison Report #1 • Business Office - open/cubes • 5 foot high partitions • partition material - not specified • 10 square meter cubicle • infinite extent in two dimensions • adjacent floors • distance between floors - not specified Richard Ditch, Motorola

  9. Coexistence Liaison Report #1 • Business Office - Closed • concrete floors • Plasterboard walls • 10 square meter office • infinite extent in two dimensions • adjacent floors • distance between floors - not specified Richard Ditch, Motorola

  10. Coexistence Liaison Report #1 • Apartment Building • Building: 12 meter X 80 meter floor (960 square meters) • Apartment: 100 square meters • Room: 20 square meters • Plasterboard walls between rooms • Brick walls between apartments • Distance between floors - not specified • Reinforced concrete floors Richard Ditch, Motorola

  11. Coexistence Liaison Report #1 • Airport/Shopping Mall/Factory Floor • Single floor • Infinite expanse in two dimensions • Wall material and spacing - not specified • Ceiling height - not specified Richard Ditch, Motorola

  12. Coexistence Liaison Report #1 • Outdoors • Infinite extent in two dimensions • No ceiling, no walls Richard Ditch, Motorola

  13. Coexistence Liaison Report #1 • Expected Interferers • Residential (US & Europe) - Bluetooth (V/D), HomeRF (V/D), 802.11b (D), Microwave Oven, Cordless phones • Business (Closed & Cubical) - Bluetooth (V/D), 802.11b (D), 802.11FH (D) • Apartment - Bluetooth (V/D), DECT (V), 802.11b (D), Microwave Ovens, HomeRF • Airport - Bluetooth (V/D), 802.11b (D), RFID • Outdoors - Bluetooth (V/D), RFID, Fusion Lighting Richard Ditch, Motorola

  14. Coexistence Liaison Report #1 • Simulations • Matlab • Time & Frequency simulations - assume a particular time usage (due to specific traffic models) together with frequency hoping scenarios to establish collision rate between Bluetooth and the interfering system • NOT doing Physical Layer, implementation specific models • NOT doing MAC layer simulations Richard Ditch, Motorola

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