# Presentation: 186729

## Cognitive Radio Technologies in the Commercial Arena 

**Bill Lane, Ph. D., PE**
**Office of Strategic Planning & Policy Analysis **
**Federal Communications Commission**

## Outline

**SPTF**
**Unlicensed Uses**
**Secondary Markets**

## Spectrum Policy Task Force Report 

**While the SPTF Report found continued ****	****demand for more spectrum; considerable ****	****spectrum is available when both space and ****	****time are considered**
**Hence ****SPECTRUM ACCESS**** is a major issue**
**Report also found that in view of recent impact ****	****of Wi-Fi and other unlicensed systems, there ****	****is great interest in more spectrum where ****	****unlicensed access is facilitated **

## Unlicensed NOI

**In DEC ‘02 FCC adopted an NOI in Docket**
**	****	****02-380 exploring unlicensed sharing of ****	****spectrum in TV bands below 900 MHz**
**Interference could be avoided by:**
**Geographical separation and check of license database, *****or***
**Listen-before-talk algorithms**

## Unlicensed NOI

**There is a relationship between the ****	****sensitivity ****	****of the listen-before-talk detector, the allowed ****	****transmit power, and the probability of ****	****interference **
**(Although there has been little published in this area)**
**FCC 2/12/03 tutorial by John Betz, MITRE Corp., ****	****explored “feature detectors”**
**	****- sensitive listen-before-talk detectors that ****	****are little known in commercial circles**

## Unlicensed NOI

**Can cognitive radio technology be used to improve unlicensed spectrum access while also avoiding harmful interference?**

## Secondary Market Rulemaking

**In Docket 00-230, FCC is considering ****	****both short term and long term ****	****leasing of spectrum by licensees ****	****without case-by-case FCC approval**
**Seen as possible method to improve  ****	****spectrum efficiency by giving ****	****economic incentives to licensees to ****	****allow more intensive use**

## Multiyear leases could be done with 	conventional technology 
– lessee just builds new system(s) using 	leased spectrum
Leases in the hours/minutes/seconds 	range are the subject of today’s 	discussion

**– ****lessee just builds new system(s) using ****	****leased spectrum**
**Leases in the hours/minutes/seconds ****	****range are the subject of today’s ****	****discussion**

**Secondary Market Rulemaking**

## Near Real Time Secondary Market

**In the electric power industry there is an ****	****hour-to-hour market for power exchange**
**Should we remove any barriers to such a ****	****market in the commercial spectrum area?**
**Such a market might require:**
**An exchange mechanism to bring buyers and ****	****sellers together**
**A standard definition for what is being bought and  ****	****sold**
**A real time spectrum management monitor to ****	****insure compliance**

***  ******Not subject of today’s discussions***

## Near Real Time Secondary Market:Possible Information Flow

***Exchange Mechanism***

***Spectrum***
***Licensees***
***Seeking to***
***Lease out***
***Underutilized ***
***Spectrum***

***   ******Potential ***
***   ******Spectrum ***
***    ******Users***

## Near Real Time Secondary Market

**Cognitive radios and dynamically reconfigurable software radios could provide a means to implement such a spectrum commodity market**
**Is a near real time secondary market practical and/or desirable?**

## Near Real Time Secondary Market

**What present FCC rules and policies ****	****inhibit the development of such ****	****approaches or create uncertainty ****	****for developers?**
**Should FCC have a role in defining ****	****standard interfaces for such ****	****information flow and spectrum ****	****exchange?**

**We look forward to your views on how we should address these issues!**