"The responding STA sets the ASAP Capable field to to indicate the STA's capability to send a Fine Timing Measurement frame as soon as possible : the STA is capable of capturing timestamps associated with an initial Fine Timing Measurement frame and sending them in the following Fine Timing Measurement frame" 5189 4 39 E We should clarify that an As in comment 1 FTM retransmission has a new Sequence Number in MAC header. 6048 4 10 T the PTSF is a 16bit long Define the lower 10bits of the field of bits 25:10 of the TSF TSF to be set to 0 for burst which defines the start time instances. of the burst instances. Since it is a TU granularity it is not well defines the lower 10bits of the TSF time at the start of the burst instance. Recommendation : define the lower 10bits of the TSF to be set to 0 for burst instances. 6231 4 54 T It is not exactly what Specify that the PTT shall instant in time the PTT always be considered to be in refers to, if the PTT is the future "lower" (modulo than the current corresponding bits of the TSF timer 6232 4 54 T It is not clear exactly what Specify that the PTT shall instant in time the PTT always be considered to start at refers to, as regards the the time where the least lsbs of the TSF significant 10 bits of the TSF are all zero
"The responding STA sets the ASAP Capable field to to indicate the STA's capability to send a Fine Timing Measurement frame as soon as possible : the STA is capable of capturing timestamps associated with an initial Fine Timing Measurement frame and sending them in the following Fine Timing Measurement frame" 5189 4 39 E We should clarify that an FTM retransmission has a new Sequence Number in MAC header. As in comment 6048 4 10 T the PTSF is a 16bit long field of bits 25:10 of the TSF which defines the start time of the burst instances. Since it is a TU granularity it is not well defines the lower 10bits of the TSF time at the start of the burst instance. Recommendation : define the lower 10bits of the TSF to be set to 0 for burst instances. Define the lower 10bits of the TSF to be set to 0 for burst instances. 6231 4 54 T It is not exactly what instant in time the PTT refers to, if the PTT is "lower" (modulo than the current corresponding bits of the TSF timer Specify that the PTT shall always be considered to be in the future 6232 4 54 T It is not clear exactly what instant in time the PTT refers to, as regards the lsbs of the TSF Specify that the PTT shall always be considered to start at the time where the least significant 10 bits of the TSF are all zero 1
11-15-0171-03-000m-clarification-to-fine-timing-protocol.docx