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

eNB HW upgrade scenario

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

Deployment of Scenario & Scope of work

Antenna X

RRU Replace

CDU Add

Cables X

Scope

*(Existing/New)

WiMAX

2.3GHz 2T2R RU

Existing 2T2R Antenna

WiMAXLTE

Add CDU

Replace RU

Existing 2T2R Antenna

2.3GHz2T2R RU

WiMAX

Dismantle2T2R

Antenna

New6T6R

Antenna

2.6GHz4T4R RU

2.3GHz2T2R RU

LTEAdd CDU

Add RRU

WiMAX

Dismantle2T2R

Antenna

New6T6R

Antenna

2.6GHz4T4R RU

2.3GHz2T2R RU

LTEAdd CDU

Add RRUReplace RU

New4T4R

Antenna

2.6GHz4T4R RU

LTENew CDU

New RRU

Site rate : 41% *(1936/113)

Antenna New(Replace)

RRU Add

CDU Add

Cables Add

Scope

Site rate : 4%*(185/0)

Current Scenario 12.3G Interleaving

Scenario 22.6G Overlay

Scenario 32.3G Interleaving

+ 2.6G OverlayScenario 4

2.6G New Installation

Antenna New(Replace)

RRU New(Replace)

CDU Add

Cables Add

Scope

Site rate : 43%*(1896/278)

Antenna New

RRU New

CDU New

Cables New

Scope

Site rate : 12%*(554/38)

Site rate will be modified

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

Scenario-1 : 2.3G RRH interleaving for F-RAS

F-RAS Interleaving Cable Diagram Interleaving Procedure for F-RAS

Line Line Description (Hidden : Re-Use) Reuse

Data Cable New DC Power Cable Reuse CPRI Cable Reuse GPS / RF Cable Reuse Existing Cable

□ Re-use of existing materials - GPS cable extension through the Splitter. - Reuse materials : CPRI / Power / Ground / Antenna / RF Cable □ New Installation materials for CDU - Data Cable / New CDU Power / Ground Cable / GPS Splitter

※ Hidden Line : Re-Use Cable

※ Downtime: Rooftop 22min / Tower 27min per sector

Classification Installation Procedure

DU Installation Insert LTE DU in existing Cabinet

GPS Installation Install GPS Splitter(2way) in existing Cabinet GPS Cabling

DU CablingData Cabling from DU to BackhaulDC Power Cabling from DU to RectifierGround Cabling from DU to TGB

RRH Replacement

Detach existing RRH using rope temporarilyInstall New 2T2R RRH to existing location (A Filter is changed)Turn off existing RRHCut over 1/2" Jumper from existing RRH to New RRHCut over CPRI from existing RRH to New RRHCut over Power cable from existing RRH to New RRHTurn on New RRHCut over Ground cable from existing RRH to New RRHDismantle existing RRH

Wrap up RRH Cables WaterproofingSite Cleanliness

Existing 2T2R Antenna

GPS Antenna

OFD/DC BOX

Outdoor Cabinet(Flexible DU)

FDU CDUOFD/DC Power Cable

BackhaulSwitch

Rectifier Rack

RRH Replace

RF Jumper Cable

Existing OFD/DC Power Cable

GPS Splitter

ExistingRectifier

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

Scenario-1 : 2.3G RRH interleaving for S-RAS

S-RAS Interleaving Cable Diagram Interleaving Procedure for S-RAS

Line Line Description (Hidden : Re-Use) Reuse

Data Cable New DC Power Cable Reuse CPRI Cable Reuse GPS / RF Cable Reuse Existing Cable

□ Re-use of existing materials - GPS cable extension through the Splitter. - CPRI Cable extension through the Harting Adaptor. - Reuse materials : Power/Ground/Antenna/RF Cable □ New Installation materials for CDU - Data Cable / Ground / Power Cable, GPS Cable(SDU~GPS Splitter) - GPS Splitter / Harting Adaptor (Harting to Harting)

※ Hidden Line : Re-Use Cable

※ Downtime: Rooftop 22min / Tower 27min per sector

Classification Installation Procedure

DU Installation Insert LTE DU in existing rectifier rack

GPS Installation Install GPS Splitter(2way) in existing rectifier rack and GPS cabling to SDU

DU CablingData Cabling from DU to BackhaulDC Power Cabling from DU to RectifierGround Cabling from DU to TGB

RRH Replacement

Detach existing RRH using rope temporarilyInstall New 2T2R RRH to existing location (A Filter is changed)Turn off existing RRHCut over 1/2" Jumper from existing RRH to New RRHCut over CPRI from existing RRH to New RRHCut over Power cable from existing RRH to New RRHTurn on New RRHCut over Ground cable from existing RRH to New RRHDismantle existing RRH

Wrap up RRH Cables WaterproofingSite Cleanliness

Existing CPRI / Power Cable

SDU

Rectifier

CDU

GPS Antenna

Existing 2T2R Antenna

RRH Replace

Harting Connector

RF Jumper Cable

GPS Splitter

Add GPS Cable

B/H Switch

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

Scenario-2 : 2.6G Overlay for F-RAS

F-RAS 2.6G Overlay Cable Diagram 2.6G Overlay Procedure for F-RAS

※ Downtime: Rooftop 45min / Tower 70min per sector

Classification Installation Procedure

DU Installation Insert LTE DU in existing Cabinet

GPS Installation Install GPS Splitter(2way) in existing Cabinet GPS Cabling

DU CablingData Cabling from DU to BackhaulDC Power Cabling from DU to RectifierGround Cabling from DU to TGB

RRH Installation

Install New 4T4R RRH including Bracket Power Cabling from New 4T4R RRH to Rectifier Ground Cabling from New 4T4R RRH to TGB CPRI Cabling from New 4T4R RRH to LTE DU Turn on New 4T4R RRH

Antenna Replace-ment

Dismantle existing Antenna Install 6T6R Antenna 1/2" Jumper Cabling from New 4T4R RRH to 6T6R Ant. Cut over 1/2" Jumper from 2T2R Antenna to 6T6R Ant. RET Cabling from New 4T4R RRH to 6T6R Antenna Install 6T6R Antenna

Wrap up RRH Cables WaterproofingSite Cleanliness

Line Line Description (Hidden : Re-Use) Reuse

Data Cable New DC Power Cable Reuse CPRI Cable Reuse GPS / RF Cable Reuse Existing Cable

□ Re-use of existing materials - Reuse to all existing materials for WiMAX. - Dismantle to existing 2T2R Antenna.□ New Installation materials for CDU & 4T4R RRU - Data Cable / Power / Ground / GPS Splitter / CPRI / Antenna / RF Cable

※ Hidden Line : Re-Use Cable

GPS Antenna

OFD/DC BOX

Outdoor Cabinet(Flexible DU)

FDU CDUExisting OFD/DC Power Cable

BackhaulSwitch

Existing OFD/DC Power Cable GPS Splitter

Dismantle2T2R Antenna

RRH (WiMAX)

New6T6R

Antenna

RF Jumper Cable(4-Line)

RRH(4T4R)New Install

ExistingRectifier

Rectifier Rack

ReplaceRF Jumper Cable

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

Scenario-2 : 2.6G Overlay for S-RAS

F-RAS 2.6G Overlay Cable Diagram 2.6G Overlay Procedure for S-RAS

※ Downtime: Rooftop 45min / Tower 70min per sector

Classification Installation Procedure

DU Installation Insert LTE DU in existing rectifier rack

GPS Installation Install GPS Splitter(2way) in existing rectifier rack and GPS cabling to SDU

DU CablingData Cabling from DU to BackhaulDC Power Cabling from DU to RectifierGround Cabling from DU to TGB

RRH Installation

Install New 4T4R RRH including Bracket Power Cabling from New 4T4R RRH to Rectifier Ground Cabling from New 4T4R RRH to TGB CPRI Cabling from New 4T4R RRH to LTE DU Turn on New 4T4R RRH

Antenna Replace-ment

Dismantle existing Antenna Install 6T6R Antenna 1/2" Jumper Cabling from New 4T4R RRH to 6T6R Ant. Cut over 1/2" Jumper from 2T2R Antenna to 6T6R Ant. RET Cabling from New 4T4R RRH to 6T6R Antenna Install 6T6R Antenna

Wrap up RRH Cables WaterproofingSite Cleanliness

Line Line Description (Hidden : Re-Use) Reuse

Data Cable New DC Power Cable Reuse CPRI Cable Reuse GPS / RF Cable Reuse Existing Cable

□ Re-use of existing materials - Reuse to all existing materials for WiMAX. - Dismantle to existing 2T2R Antenna.□ New Installation materials for CDU & 4T4R RRU - Data Cable / Power / Ground / GPS Splitter / CPRI / Antenna / RF Cable

※ Hidden Line : Re-Use Cable

SDU

Rectifier Rack

CDU

GPS Antenna

Add GPS Cabling

New6T6R

Antenna

RF Jumper Cable

RRH(4T4R)New Install

RRH (WiMAX)

Existing CPRI / Power Cable

GPS Splitter

B/H Switch

Dismantle2T2R Antenna

ReplaceRF Jumper Cable

ExistingRectifier

GPS Splitter

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

Scenario-3 : 2.3G Interleaving + 2.6G Overlay for F-RAS

F-RAS Interleaving & Overlay Cable Diagram Interleaving & Overlay Procedure for F-RAS

※ Downtime: Rooftop 67min / Tower 97min per sector

Classification Installation Procedure

DU Installation Insert LTE DU in existing Cabinet

GPS Installation Install GPS Splitter(2way) in existing Cabinet GPS Cabling

DU Cabling Data Cabling from DU to Backhaul DC Power Cabling from DU to Rectifier

RRH Installation& Replacement

Install New 4T4R RRH including Bracket Power Cabling from New 4T4R RRH to Rectifier CPRI Cabling from New 4T4R RRH to LTE DU Turn on New 4T4R RRH Detach existing RRH using rope temporarily Install New 2T2R RRH to existing location(A Filter is changed) Turn off existing RRH Cut over 1/2" Jumper from existing RRH to New RRH Cut over CPRI from existing RRH to New RRH Cut over Power cable from existing RRH to New RRH Turn on New RRH Cut over Ground cable from existing RRH to New RRH Dismantle existing RRH

Antenna Replace-ment

Dismantle existing Antenna and Install 6T6R Antenna 1/2" Jumper Cabling from New 4T4R RRH to 6T6R Ant. Cut over 1/2" Jumper from 2T2R Antenna to 6T6R Ant. RET Cabling from New 4T4R RRH to 6T6R Antenna Install 6T6R Antenna

Wrap up RRH Cables Waterproofing and Site Cleanliness

Line Line Description (Hidden : Re-Use) Reuse

Data Cable New DC Power Cable Reuse CPRI Cable Reuse GPS / RF Cable Reuse Existing Cable

□ Re-use of existing materials - CPRI / Power / Ground / GPS / RF Cable□ New Installation materials for CDU & 4T4R RRU - Data Cable / Power / Ground / GPS Splitter / CPRI / Antenna / RF Cable

※ Hidden Line : Re-Use Cable

GPS Antenna

OFD/DC BOX

Outdoor Cabinet(Flexible DU)

FDU CDUExisting OFD/DC Power Cable

BackhaulSwitch

Existing OFD/DC Power Cable GPS Splitter

Dismantle2T2R Antenna

New6T6R

Antenna

RF Jumper Cable(4-Line)

RRH(4T4R)New Install

ExistingRectifier

Rectifier Rack

ReplaceRF Jumper Cable

RRH Replace

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

Scenario-3 : 2.3G Interleaving + 2.6G Overlay for S-RAS

S-RAS Interleaving & Overlay Cable Diagram Interleaving & Overlay Procedure for S-RAS

※ Downtime: Rooftop 67min / Tower 97min per sector

Classification Installation Procedure

DU Installation Insert LTE DU in existing rectifier rack

GPS Installation Install GPS Splitter(2way) in existing rectifier rack

DU Cabling Data Cabling from DU to Backhaul DC Power Cabling from DU to Rectifier

RRH Installation& Replacement

Install New 4T4R RRH including Bracket Power Cabling from New 4T4R RRH to Rectifier CPRI Cabling from New 4T4R RRH to LTE DU Turn on New 4T4R RRH Detach existing RRH using rope temporarily Install New 2T2R RRH to existing location(A Filter is changed) Turn off existing RRH Cut over 1/2" Jumper from existing RRH to New RRH Cut over CPRI from existing RRH to New RRH Cut over Power cable from existing RRH to New RRH Turn on New RRH Cut over Ground cable from existing RRH to New RRH Dismantle existing RRH

Antenna Replace-ment

Dismantle existing Antenna and Install 6T6R Antenna 1/2" Jumper Cabling from New 4T4R RRH to 6T6R Ant. Cut over 1/2" Jumper from 2T2R Antenna to 6T6R Ant. RET Cabling from New 4T4R RRH to 6T6R Antenna Install 6T6R Antenna

Wrap up RRH Cables Waterproofing and Site Cleanliness

Line Line Description (Hidden : Re-Use) Reuse

Data Cable New DC Power Cable Reuse CPRI Cable Reuse GPS / RF Cable Reuse Existing Cable

□ Re-use of existing materials - CPRI / Power / Ground / GPS / RF Cable□ New Installation materials for CDU & 4T4R RRU - Data Cable / Power / Ground / GPS Splitter / CPRI / Antenna / RF Cable

※ Hidden Line : Re-Use Cable

SDU

Rectifier Rack

CDU

GPS Antenna

Add GPS Cabling

New6T6R

Antenna

RF Jumper Cable

RRH(4T4R)New Install

Existing CPRI / Power Cable

GPS Splitter

B/H Switch

Dismantle2T2R Antenna

ReplaceRF Jumper Cable

ExistingRectifier

RRH Replace

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

Scenario-4 : 2.6G RRH New Installation

2.6G New Installation Cable Diagram 2.6G New Installation Procedure

※ Downtime : None

Classification Installation Procedure

DU Installation Insert LTE DU in New Rectifier rack

GPS Installation Install GPS Antenna and GPS Cabling

DU CablingData Cabling from DU to BackhaulDC Power Cabling from DU to RectifierGround Cabling from DU to TGB

RRH Installation

Install New 4T4R RRH including Bracket Power Cabling from New 4T4R RRH to Rectifier Ground Cabling from New 4T4R RRH to TGB CPRI Cabling from New 4T4R RRH to LTE DU Turn on New 4T4R RRH

Antenna Install 6T6R Antenna 1/2" Jumper Cabling from New 4T4R RRH to Antenna RET Cabling from New 4T4R RRH to Antenna

Wrap up RRH Cables WaterproofingSite Cleanliness

□ New Installation materials for CDU - All materials for the 2.6G LTE System Installation□ Check for TYLC Scope - Site acquisition and Civil work : H-Beam or Concrete & Tower - Civil Work (Cable Tray, Outdoor Cabinet(Include Rectifier)

New CPRI / Power Cable / GPS Cable

New Rectifier

CDU

GPS Antenna

BackhaulSwitch

New4T4R

Antenna

RF Jumper Cable

RRH(4T4R)New

Install

Line Line Description (Hidden : Re-Use) Reuse

Data Cable New DC Power Cable New CPRI Cable New GPS / RF Cable New