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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