1. Global Regulatory Trends in Spectrum Management
Edward Knightly

2. Spectrum is the Key Enabler
Pre-1985: ISM used for welders, microwave ovens…
1985: FCC allows unlicensed spread spectrum access in ISM bands
Expected market: cordless phones, baby monitors
specified in 1997 leads to $10 Billion annual in WiFi in 2012

3. Spectrum Allocation Spectrum model until 2010
Licensed for exclusive use
Unlicensed for shared access subject to rules
Emerging spectrum models since 2010
Primary & secondary users

4. Spectrum Sharing Rules in UHF Bands
What is UHF?
TV bands from 470 MHz to 700 MHz
Allocated in 1950’s to TV
“Beach front” spectrum (range and penetration)
FCC “Whitespace” Ruling 2010
Unused 6 MHz UHF DTV channels may be utilized as an “unlicensed” band
Enabled by switch from analog to digital UHF
Strict spectral mask to project adjacent DTV channels
Database to look up local availability (vs. sensing)

5. Spectrum Sharing at 3.5 GHz
CBRS spectrum (Citizens Broadband Radio Service) ~ 150 MHz
Convert grossly underutilized spectrum into intensively used band
Protect military and incumbents (mostly radar) from interference
Spectrum sharing techniques
Spectrum Access System (database)
3-tiered access :
(1) Federal/Non-federal incumbents
(2) PAL: Priority Access Licensees (carriers)
(3) GAA: General Authorized Access (unlicsensed style with permission)
Carriers prefer two tier ASA/LSA model
Incumbent User
3G/4G
Small Cells
3G/4G Macro
Base Station
Multi-band device

6. The Future Reverse auction for UHF
TV vs. carriers vs. unlicensed advocates vs. $$$
Real-world experiences and advances with spectrum sharing
Highly-directional bands above 100 GHz
Globally
Battle for spectrum impacts broadband access: quality services, and affordability

7. Mexico sub-GHz 700-800 MHz to LTE
After switch to DTV Mexico will have more available UHF spectrum than the US
Example: between MHz
Houston has 0 MHz available
Mexico City will have 48 MHz available
Tijuana and Juarez will 60 MHz
Long term plan for Mexico
Move remaining channels in [38:51] ( MHz) lower
Free up all 84 MHz
EL-ESPECTRO-RADIOEL-CTRICO-EN-MEXICO.-ESTUDIO-Y-ACCIONES-FINAL-CONSULTA.pdf