stds-802-16-tg4: RSSI/CCI Summary
Brief summary of our 4 Oct telecom. Sorry for the delay in starting the
CC…finger problems. In summary: TG1 already has a mechanism for getting the
SS to undertake a RSSI measurement. Tal will post the reference to TG1 on
the email reflector. Consensus seems to be building that the RSSI reading
should be long term in duration ( ie significantly longer than a frame
duration and probably over the duration of several seconds).This reading
should be an absolute measurement (such as dBm/MHz or simply dB per channel
BW) and may also include a BER and an identifier indicating the type of
demodulation technique used to determine BER. Transmitting a mean signal
strength variance has also been discussed, and would provide a reasonable
parameter indicative of propagation channel stability. We still have to
discuss CCI and how this is to be determined. The issue of separation of
Interference to Noise is also up for discussion.
These issues will be discussed in the next CC which is slated
for Wednesday 10 October 2001 at 11:30 Hrs EST
I would also encourage all participants to review document IEEE
802.16ab-01/01rl.July2001 (Air Interface for Fixed Broadband Wireless ……)
Pages 37-42
(Sections 6.2.7.7-6.7.7.8.3) where there is a description of the MAC
messages that are intended for the communication of RSSI/CCI information.
Thanks to all for participating.
John Sydor
Research Broad Band Wireless
Communications Research Centre
3701 Carling Avenue
Ottawa, Canada
K2H 8S2
Ph. 613-998-2388
Fax.613-9908369
john.sydor@crc.ca