The document describes 5 scenarios for configuring antennas to add UMTS/3G connectivity to an existing site with GSM/2G service. Scenario 1, keeping the GSM configuration untouched, is the most preferred option as it has no impact on existing service and allows independent adjustment of GSM and UMTS. Scenario 5, deploying UMTS using only the existing lines through diplexing, is the least preferred due to signal loss and inability to separately control GSM and UMTS antennas. The other scenarios involve replacing antennas and equipment to add RET capability or accommodate both networks, but with increasing costs and implementation challenges.

1. Proprietary and Confidential
UMTS Antenna ConfigurationUMTS Antenna Configuration
ScenarioScenario

2. Proprietary and Confidential Slide 2
Scenario 1: GSM UntouchedScenario 1: GSM Untouched
Existing Configuration:
– 3 dual pol antennas (72 inches); antenna count can be increased
– 2 lines per antenna; additional lines can be installed
– 2 TMAs
– No RET
Proposed Configuration:
– Add one new AWS antenna (dual pol) with RET for UMTS (4th
antenna)
– Add two new feeder cables for UMTS and RET cable
– Add new AWS twin TMA

3. Proprietary and Confidential Slide 3
Scenario 1: GSM Untouched (continued)Scenario 1: GSM Untouched (continued)
Pros:
– No impact on GSM as the system will be untouched (except for some possible
minor movement of one antenna depending on existing arrangement)
– Easier implementation
– Azimuth and tilt can be independently adjusted for both GSM and UMTS
Cons:
– Additional rent cost for the extra TMA and antenna for UMTS
– Additional active elements means more points of failure

4. Proprietary and Confidential Slide 4
GSM Untouched: Existing ConfigurationGSM Untouched: Existing Configuration

5. Proprietary and Confidential Slide 5
GSM Untouched : ProposedGSM Untouched : Proposed
ConfigurationConfiguration
Actuator
Most
Preferred
Least
Preferred
GSM
Untouched

6. Proprietary and Confidential Slide 6
Scenario 2: RET For AllScenario 2: RET For All
Existing Configuration:
– 3 dual pol antennas (72 inches); antenna count can be increased
– 2 lines per antenna; additional lines can be installed
– 2 TMAs
– No RET
Proposed Configuration (1):
– Add one new AWS antenna (dual pol) with RET for UMTS (4th
antenna)
– Replaced old PCS antennas with new antennas with RET capability
– Add two new feeder cables for UMTS and RET cables
– Replace existing TMAs with twin AWS/PCS TMAs

7. Proprietary and Confidential Slide 7
Scenario 2: RET For All (continued)Scenario 2: RET For All (continued)
Pros:
– GSM gets newer antennas and RET capability
– GSM gets new TMAs
– Azimuth and tilt can be independently adjusted for both GSM and UMTS
Cons:
– Cost for replacing GSM antennas and TMAs
– Additional rent cost for the extra TMA and antenna for UMTS

8. Proprietary and Confidential Slide 8
RET For All: Existing ConfigurationRET For All: Existing Configuration

9. Proprietary and Confidential Slide 9
RET For All: Proposed ConfigurationRET For All: Proposed Configuration
Actuators
Most
Preferred
Least
Preferred
RET For
ALL

10. Proprietary and Confidential Slide 10
Scenario 3: I Love QuadsScenario 3: I Love Quads
Existing Configuration:
– 3 dual pol antennas (72 inches); antenna count cannot be increased
– 2 lines per antenna; additional lines can be installed
– 2 TMAs
– No RET
Proposed Configuration:
– Replace all antennas with quad pol AWS with RET capability
– Replace existing TMAs with new AWS/PCS twin TMAs
– Add two new feeder cables for UMTS and RET cables

11. Proprietary and Confidential Slide 11
Scenario 3: I Love Quads (continued)Scenario 3: I Love Quads (continued)
Pros:
– Same antenna count (a plus for zoning, leasing and structural aspects)
– RET is separate between GSM and UMTS sharing the same quad pol antenna
(independent tilt adjusted for GSM and UMTS)
Cons:
– Azimuth cannot be independently adjusted for the antenna where GSM and
UMTS is located

12. Proprietary and Confidential Slide 12
I Love Quads: Existing ConfigurationI Love Quads: Existing Configuration

13. Proprietary and Confidential Slide 13
Actuators
I Love Quads: Proposed ConfigurationI Love Quads: Proposed ConfigurationMost
Preferred
Least
Preferred
I Love
Quads

14. Proprietary and Confidential Slide 14
Scenario 4: No Room To GrowScenario 4: No Room To Grow
Existing Configuration:
– 2 quad pol antennas (72 inches); antenna count cannot be increased
– 4 lines per antenna (no additional lines can be added)
– 2 TMAs
– No RET
Proposed Configuration:
– Replace all existing antennas with quad pol AWS with RET capability
– Replace existing TMAs with new AWS/PCS twin TMAs
– Combine GSM TRXs to free up 2 feeder cables for UMTS (ensure even
combining of GSM TRXs)
Note: This scenario is applicable also for existing configuration using dual pol antennas and no new lines can be
added

15. Proprietary and Confidential Slide 15
Scenario 4: No Room To GrowScenario 4: No Room To Grow
(continued)(continued)
Pros:
– UMTS can be deployed on the site
– New antennas for GSM
– New TMAs for GSM
– Independent tilt and azimuth adjustment for both GSM and UMTS
Cons:
– Additional loss in GSM (due to combining)
– Increased cost to offset additional loss due to combining if MCPAs are used
– Loss of space diversity in GSM

16. Proprietary and Confidential Slide 16
No Room To Grow : ExistingNo Room To Grow : Existing
ConfigurationConfiguration

17. Proprietary and Confidential Slide 17
No Room To Grow : Proposed ConfigurationNo Room To Grow : Proposed Configuration
Actuators
Most
Preferred
Least
Preferred
No Room
To Grow

18. Proprietary and Confidential Slide 18
Scenario 5: “Two” Few LinesScenario 5: “Two” Few Lines
Existing Configuration:
– 1 dual pol antenna (72 inches); antenna count cannot be increased
– 2 lines per antenna (no additional lines can be added)
– 2 TMAs
– No RET
Proposed Configuration:
– Replace all existing antennas with dual pol AWS with RET capability
– Replace existing TMAs with new Diplexer/TMA unit
– Diplex GSM and UMTS to fit into 2 lines

19. Proprietary and Confidential Slide 19
Scenario 5: “Two” Few Lines (continued)Scenario 5: “Two” Few Lines (continued)
Pros:
– UMTS can be deployed on the site
– New antenna for GSM
– New TMA for GSM
– Diplexing option is cheaper than MCPA
Cons:
– Additional loss in GSM and UMTS (due to diplexing but lower than combining)
– Possible intermodulation product at certain frequency pairs
– Azimuth and tilt cannot be independently adjusted for both GSM and UMTS

20. Proprietary and Confidential Slide 20
““Two” Few Lines: Existing ConfigurationTwo” Few Lines: Existing Configuration

21. Proprietary and Confidential Slide 21
““Two” Few Lines: ProposedTwo” Few Lines: Proposed
ConfigurationConfigurationMost
Preferred
Least
Preferred
“Two” Few
Lines

22. Proprietary and Confidential Slide 22
Summary (Level of Preference)Summary (Level of Preference)
Least
Preferred
Most
Preferred
GSMUntouched
RETForAll
ILoveQuads
TwoFewLines
NoRoomToGrow