RRU and BBU Configurations 02-08-2012

© Samsung Electronics. All Rights Reserved. Confidential and Proprietary.© Samsung Electronics. All Rights Reserved. Confidential and Proprietary.

RRU & BBU Configurations for 1900 MHz + 800 MHz

February 8, 2012

© Samsung Electronics. All Rights Reserved. Confidential and Proprietary.

Overview

• Goal of the Presentation:• This presentation attempts to layout the standard RRU and BBU configurations for the markets. Each

configuration is a “per sector” view.

•The choice of RRU & BBU configurations depends on:• The required number of 1900 MHz Carriers (CDMA + EVDO)• Software release 2.0 timeline

• Diplexers are to be avoided• Exceptions when Two 1900 MHz RRUs required and only 1 antenna possible (example Flag Pole)

• If Towers can not support RRUs, then Ground Based alternative can be considered

•.


1900MHz RRUs


1900 MHz RRU Configuration (For CDMA/EVDO Carriers = 1 to 4)

Path 1 Path 2 Path 3 Path 4

10W

10W

10W

10W

20W 20W 20W

LTE

20W1X 1X DO

LTE

DO20W 20W 20W 20W


5W5W

5W5W

5W5W

5W5W

1X 1X DO DO

LTELTE

Today Next Release

CDMA 20w x 1TEVDO 20w x 1TLTE 10w x 2T4R(full power per channel)




10W

10W

10W

10W

20W 20W 20W

20W 20W

LTE

20W1X

1X

DO DO

LTE

DO20W 20W 20W 20W


5W5W

5W5W

5W5W

5W5W

10W 10W 10W 10W

20W1X DODODO

1X 1XLTELTE

Today Next Release

1X


CDMA 20w x 1T & 10W x 2TEVDO 20w x 1TLTE 5w x 4T4R(full power per channel)



Today Next Release



Need 2 RRU’sCDMA 20w x 1TEVDO 20w x 1TLTE 10w x 2T4R(full power per channel)


20W 20W 20W

20W 20W

20W1X

1X

DO DO DO

1X

20W20W1X 1X

10W 10WLTE10W 10WLTE


20W 20W 20W

20W 20W

20W1X

1X

DO DO DO

1X20W20W

1X 1X



5W5W

5W5W

5W5W

5W5W

LTELTE


Today Next Release





20W 20W 20W20W1X DO DO DO

20W20W1X 1X

10W 10WLTE10W 10WLTE



20W 20W 20W

20W 20W

20W1X

1X

DO DO DO

1X20W20W

1X 1X

20W 20W

20W 20WDO

DO DO

1X20W20W

1X 1X

20W 20W 20W 20W


5W5W

5W5W

5W5W

5W5W

20W1X DODODO

LTELTE


800MHz RRUs


800 MHz RRU Configuration (For CDMA Carriers = 1)

Path 1 Path 2

20W1X

Today Next Release

CDMA 20w x 1T(full power per channel)

CDMA 20w x 1T(full power per channel)

Path 1 Path 2

20W1X

Note - The 800 MHz RRU only has 2 Transmit Paths. And, we only have spectrum for 1 CDMA Carrier at this time.


BBUs(for Markets with 1900 + 800 MHz)


BBU2 Needs:• 1 UAMA card (LTE control)• 1 L9CA card (for 2 5MHz carrier LTE)

BBU Configuration: For CDMA/EVDO Carriers = 1 to 6 (up to Five 1900 MHz + One 800 MHz)

BBU1 Needs:• 1 CIMA cards (CDMA control)• 3 CICA-A or CICA-D cards (CDMA & EVDO traffic)• Note, one of the CICA cards will have 800 MHz CDMA


BBU1 Needs:• 1 CIMA cards (CDMA control)• 3 CICA-A or CICA-D cards (CDMA & EVDO traffic)


BBU3 Needs:• 1 CIMA cards (CDMA control)• 1 CICA-A card (CDMA traffic)

BBU Configuration: For CDMA/EVDO Carriers = 7(Six 1900 MHz + One 800 MHz)




BBU3 Needs:• 1 CIMA cards (CDMA control)• 3 CICA-A or CICA-D cards (CDMA & EVDO traffic)Note – 800 MHz CDMA is set on one of the CICA cards

BBU Configuration: For CDMA/EVDO Carriers = 8 to 12(up to Eleven 1900 MHz + One 800 MHz)

Note: For Sites with only 7 & 8 1900 MHz carriers (after SR 2.0) the 2nd 1900 MHz RRU can be avoided if all carriers are powered down 1dB(**RF Approval required)


BBUs(for Markets with only 1900 MHz)



BBU Configuration: For CDMA/EVDO Carriers = 1 to 6 (up to Six 1900 MHz + No 800 MHz)






BBU Configuration: For CDMA/EVDO Carriers = 7 to 12(up to Twelve 1900 MHz + One 800 MHz)

Note: For Sites with only 7 & 8 carriers (after SR 2.0) the 2nd RRU can be avoided if all carriers are powered down 1dB(RF Approval Required)


Channel Assignments


CICA-D cards• Can only do 1 EVDO carrier• And, can do 1 Voice carrier (either 800 or 1900 mHz)

CICA –A cards• Can do 2 Voice Carriers (either carrier can be 1900 MHz or you can change

one to 800 MHz)

1 BBU can support 3 traffic cards (or 6 carriers)• But, 4 EVDO’s will trigger 2nd BBU• 1 RRU can handle 1 CDMA BBU + 1 LTE BBU

• a second CDMA BBU would require a 2nd RRU

Attached is the formulas to calculate The correct number of CICA-A & CICA-D cards

Channel Formulas


Carrier Forecast


Market 1900 MHz Carrier Forecast

Green = 1 RRU & 1 Antenna per sector ; Orange = 2 RRU & 2 Antenna per sector

MTA Name800 MHzMarket? 1C 2C 3C 4C 5C 6C 7C 8C 9C 10C 11C

Puerto Rico No 0 27 96 70 53 9 9 0 0 0 0Chicago Yes 0 108 145 344 204 314 0 0 0 0 0SF Yes 0 285 202 222 115 26 6 1 0 0 0

South Bay Yes 0 161 93 73 34 6 1 1 0 0 0

West Washington No 0 216 153 183 74 41 8 5 0 0 0

SW Washington Yes 0 260 147 76 53 5 2 0 0 0 0

Milwakee Yes 0 70 112 43 63 26 8 4 2 0 0

East Michigan No 0 84 140 137 109 128 43 58 17 3 3

Minnasota Yes 5 186 188 213 140 51 15 3 2 0 0

Cleveland No 0 182 195 134 55 27 4 1 0 0 0

Indianapolis Yes 0 52 51 58 42 73 24 17 3 1 0

96% 4%

RRU and BBU Configurations 02-08-2012

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