Re: [802.19] Typical EIRP Values

["Shellhammer, Steve" <sshellha@xxxxxxxxxxxx>]

I already caught an error.  Just after I emailed this out. L

 

20 watts is 43 dBm.  So I guess a typical fixed EIRP could be as high at 40 dBm.

 

Thoughts anyone?

 

Steve

 

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From: Shellhammer, Steve
Sent: Thursday, April 05, 2007 1:20 PM
To: 802. 19 TAG (stds-802-19@ieee.org); Adrian Stephens (Adrian.P.Stephens@intel.com); Baowei Ji (bji@sta.samsung.com); Bruce Kraemer (bkraemer@ieee.org); Dan Lubar (dlubar@ieee.org); David Grandblaise (david.grandblaise@motorola.com); Dick Roy (dickroy@alum.mit.edu); Douglas Chan (dougchan@cisco.com); Eldad Perahia (eldad.perahia@intel.com); Fanny Mlinarsky (fm@octoscope.com); John Sydor (john.sydor@crc.ca); Kenneth Stanwood (KStanwood@cygnuscom.com); Marianna Goldhammer (marianna.goldhammer@alvarion.com); Naftali Chayat (naftali.chayat@alvarion.com); Paul Piggin (ppiggin@nextwave.com); Shellhammer, Steve; Shlomo Malka (shlomo.malka@alvarion.com); Wuxu Yong (wuxuyong@huawei.com)
Subject: Typical EIRP Values

 

All,

 

I am starting to look into the energy detection technique used in 11y and 16h and I would like to agree some typical parameters.  I am not that familiar with the usage models but I know the FCC limits.  So I thought I would suggest some numbers for fixed and portable EIRP values and solicit feedback on those numbers.  Below is my brief argument for the values I am suggesting that could be used in simulations and analysis.  I would ask members of 11y and 16h to give me feedback on the choice of these numbers.  I suggested numbers for 20 MHz. I did not suggest any numbers for 5 and 10 MHz.

 

Typical EIRP Values

 

Consider the 20 MHz Case

 

Fixed Station EIRP

For fixed stations the maximum permitted EIRP is 1 watt per MHz.  For a 20 MHz system this gives 33 dBm.  However, the full 20 MHz spectrum is not used.

 

Suggested typical value of 30 dBm EIRP for fixed stations

 

Portable Station EIRP

For a portable station the maximum permitted EIRP is 40 wm per MHz.  For a 20 MHz system this gives 29 dBm.  However, the full 20 MHz of spectrum is not used and this is a high power level for a portable device which is battery operated.  So I would suggest the typical value is much lower

 

Suggested typical value of 20 dBm EIRP for portable stations

 

 

Regards,

Steve