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Copyright © 2006 IEEE. All rights reserved. xv
D.7.1 Major roles for devices compliant with IEEE Std 802.15.4-2006............................... 254
D.7.2 Major capabilities for the PHY.................................................................................... 255
D.7.2.1 PHY functions.............................................................................................. 255
D.7.2.2 PHY packet .................................................................................................. 255
D.7.2.3 Radio frequency (RF) .................................................................................. 256
D.7.3 Major capabilities for the MAC sublayer .................................................................... 256
D.7.3.1 MAC sublayer functions.............................................................................. 256
D.7.3.2 MAC frames ................................................................................................ 258
Annex E (informative) Coexistence with other IEEE standards and proposed standards........................... 261
E.1 Introduction.............................................................................................................................. 261
E.2 Standards and proposed standards characterized for coexistence............................................ 261
E.3 General coexistence issues....................................................................................................... 261
E.3.1 Clear channel assessment (CCA)................................................................................. 262
E.3.2 Modulation................................................................................................................... 262
E.3.2.1 2400 MHz band PHY .................................................................................. 262
E.3.2.2 800/900 MHz band PHYs............................................................................ 262
E.3.3 ED and LQI.................................................................................................................. 263
E.3.4 Low duty cycle.............................................................................................................263
E.3.5 Low transmit power ..................................................................................................... 263
E.3.5.1 2400 MHz band PHY .................................................................................. 263
E.3.5.2 800 MHz band PHYs................................................................................... 263
E.3.5.3 900 MHz band PHYs................................................................................... 264
E.3.6 Channel alignment ....................................................................................................... 264
E.3.7 Dynamic channel selection .......................................................................................... 264
E.3.8 Neighbor piconet capability......................................................................................... 264
E.4 2400 MHz band coexistence performance............................................................................... 265
E.4.1 Assumptions for coexistence quantification ................................................................ 265
E.4.1.1 Channel model ............................................................................................. 265
E.4.1.2 Receiver sensitivity...................................................................................... 266
E.4.1.3 Transmit power ............................................................................................ 266
E.4.1.4 Receiver bandwidth ..................................................................................... 266
E.4.1.5 Transmit spectral masks............................................................................... 266
E.4.1.6 IEEE 802.11b transmit PSD ........................................................................ 267
E.4.1.7 Interference characteristics .......................................................................... 267
E.4.1.8 Bit error rate (BER) calculations ................................................................. 267
E.4.1.9 Packet error rate (PER) ................................................................................ 268
E.4.2 BER model................................................................................................................... 268
E.4.3 Coexistence simulation results..................................................................................... 268
E.5 800/900 MHz bands coexistence performance........................................................................ 273
E.5.1 Victims and assailants.................................................................................................. 273
E.5.2 Bandwidth.................................................................................................................... 273
E.5.3 Path loss model ............................................................................................................273
E.5.4 Temporal model........................................................................................................... 274
E.5.5 Coexistence assurance results...................................................................................... 275
E.5.5.1 868 MHz BPSK PHY .................................................................................. 275
E.5.5.2 868 MHz O-QPSK PHY.............................................................................. 276
E.5.5.3 868 MHz PSSS PHY ................................................................................... 278
E.5.5.4 915 MHz BPSK PHY .................................................................................. 279
E.5.5.5 915 MHz O-QPSK PHY.............................................................................. 280
E.5.5.6 915 MHz PSSS PHY ................................................................................... 281
E.6 Notes on the calculations ......................................................................................................... 282