Point to Point & Point to Multipoint
Broadband Application Enablers
February 20, 2001
Mike Fink
SVP – Architecture & Advanced Technology
Network Deployment Tradeoffs
•
•
•
•
•
•
7/31/2017
Spectrum
Capacity
Real Estate: Indoor, Rooftop, IFL
Range
Ease of Use
Cost
Winstar Proprietary & Confidential
page 2
WinStar 38 GHz Spectrum Holdings
3 8 GHz Licenses
27 28
# of Markets
30
25
21 21
23
21
20
15
15
8
10
5
7
2
0
0
0
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14
# of FCC Channels Held
7/31/2017
Winstar Proprietary & Confidential
page 3
28 GHz Spectrum
•
•
•
•
•
•
•
•
7/31/2017
New York
San Francisco
San Jose
Salt Lake City
New Orleans
Orlando
Greensboro
Norfolk
Winstar Proprietary & Confidential
page 4
PTP Spectrum Usage
Up Link
700MHz
Down Link
50 MHz
50 MHz
8xT1
20
40
12.5
50
28
2x50 MHz
7/31/2017
20
DS3
Narrowband DS3
40
Today
12.5
OC3 Ver 1
OC3 Ver 2
OC12 Ver 1
Winstar Proprietary & Confidential
FCC
Channel
50
28
2x50 MHz
Emerging
page 5
PTP and PMP Usage, Spectrum, and Antennas
Bandwidth Size Technology
PTP
20
8xT1
1
DS3
1
Narrowband DS3 1
40
12.5
50
PMP
28
10 10 10 10 10
12.5
12.5
Capacity/FCC
OC3 Ver 1
1
OC3 Ver 2
1
25MB
45 MB
180MB
155 MB
155 MB
5x40 Mbps
2
200 MB
4x45 Mbps (DS-3’s)
4
180 MB
12.5
12.5
7/31/2017
# Antennas
Winstar Proprietary & Confidential
page 6
Siemens PMP Frequency Usage
700 MHz T-R
Spacing
50 MHz
Upstream
Channel
F1
F2
F3
F4
F5
Siemens
•5 x 1-10 MHz Sub-Channels
•FDMA or TDMA
•Payload to 40 Mb/Sub-Channel
7/31/2017
50 MHz
Downstream
Channel
F1
F2
F3
F4
F5
•5 x 1-10 MHz Sub-Channels
•QPSK, 16QAM or 64QAM
•Payload to 40 Mb/Sub-Channel
Winstar Proprietary & Confidential
page 7
PMP/PTP Coverage/Capacity and Comparisons
.86 Miles
13.3 Mbs
F2
F1
F1
.67 Miles
27 Mbs
F1
F2
.52 Miles
45 Mbs
PTP 1.16 Miles
7/31/2017
Winstar Proprietary & Confidential
page 8
Range Variation from Antenna
Selection PMP & PTP
90 sector
.5 .57 .63
.86 .93 1.0
45 MB
13 MB
8T1 PTP
22.5 sector
DS3 PTP
OC3 PTP
45 sector
1.13 1.16
1.33
Distance
7/31/2017
Winstar Proprietary & Confidential
page 9
Comparison of Antenna Usage at
Hub PMP vs. PTP
# Antennas
20
PTP
7
PMP
2
1
4
8
11
15
18
20
# Buildings Added in Sector
7/31/2017
Winstar Proprietary & Confidential
page 10
PTP vs PMP OverSubscription
25 MHz
75MHz
7/31/2017
2+1 Redundant
Oversubscribed PMP
Sectors
6+1 Redundant
15 Point to Point Links
Fixed Bandwidth 600 MHz
PMP Sectors
Winstar Proprietary & Confidential
page 11
PTP vs PMP OverSubscription
1 Oversubscribed
Redundant PMP
Sectors
20 MHz
15 PTP Links
70 MHz
7/31/2017
2 Fixed Bandwidth
600 MHz
Redundant PMP
Sectors
Winstar Proprietary & Confidential
page 12
TDM / ATM Architecture Comparison
B-Site
B-Site
HUB
PTP/PMP
PTP/PMP
M 1/3
PTP/PMP
PTP/PMP
M 1/3
ATM A/C
DLC
M 1/3
M 1/3
Backhaul
Backhaul
Backhaul
TDM
7/31/2017
ATM
Winstar Proprietary & Confidential
page 13
Point-to-Point Radio
•
•
•
•
Relatively Easy to Deploy
Burns Resources Used or Not
Not Spectrally Efficient
Higher Capacity Potential (New High Capacity
Products on the Way – OC6/OC12)
• Real Estate Burdensome
• Reasonably Cost Effective
7/31/2017
Winstar Proprietary & Confidential
page 14
Point-to-Multi-Point
•
•
•
•
High Initial Costs Require Strong Demand
Very Real Estate Efficient
Spectrum Efficient
Excellent Product to Reduce Current Hub
Congestion Issues
• Limited Range vs PTP
• Requires Traffic Management Capability
7/31/2017
Winstar Proprietary & Confidential
page 15
Applications We’re Offering
Using Our PMP/ATM Infrastructure…
• Toll quality voice – Local & Long Distance
 Utilizing ATM QOS
•
•
•
•
•
•
•
7/31/2017
High Speed Internet / Broadband Access
Business Essentials / Office.Com
Frame Relay
Private Line / MAN’s
Native ATM
IP VPN’s
Burstable Bandwidth On Demand
Winstar Proprietary & Confidential
page 16
How it all comes together…
7/31/2017
Winstar Proprietary & Confidential
page 17