Alvarion BreezeNET PRO.11 Guide de l'utilisateur Page 199

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Appendix
BreezeNET PRO.11
9-43 User’s
Guide
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The Sequence Control Field is used to represent the order of different fragments
belonging to the same frame, and to recognize packet duplications. It consists of
two subfields, Fragment Number and Sequence Number, which define the frame
and the number of the fragment in the frame.
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The CRC is a 32-bit field containing a 32-bit Cyclic Redundancy Check (CRC).
9.5.10 Most Common Frame Formats
9.5.10.1 RTS Frame Format
The RTS frame looks as follows:
Figure 9-20. RTS Frame Format
The RA of the RTS frame is the address of the STA on the wireless medium that is
the intended immediate recipient of the next Data or Management frame.
The TA is the address of the STA transmitting the RTS frame.
The Duration value is the time, in microseconds, required to transmit the next Data
or Management frame, plus one CTS frame, plus one ACK frame, plus three SIFS
intervals.
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