Small Cell Backhaul Rev New

Wireline Network Planning & Engineering

Small Cell- Fiber & Backhaul Architecture Document No.-

0A

Rev. No.

13.10.2014 Issued for Review

Date

Reason for Issue

Nilesh Keote Panyam Sarma

Anuj Jain

Anuj Jain

Prepared by

Reviewed by

Approved by

Small Cells-Fiber Backhaul Architecture

Amendment Record / Control Sheet (ACS)

Rev. No.

Date

0A 13.10.2014

Reason for Issue Issued for Review

Reliance Jio Infocomm Limited

Prepared by

Reviewed by

Approved by

Nilesh Keote Panyam Sarma

Anuj Jain

Anuj Jain

Rev. 0A

Issue date : 11.07.2014

Details of Amendments / Revisions

Page 2 of 29


Table of Contents 1

Introduction.....................................................................................................................................4

2

Deployment Scenarios .......................................................................................................................5

3

Fiber Engineering for Small cell ...........................................................................................................7

4

Last Mile outside Plant for Small Cell................................................................................................... 24


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1 Introduction ‘Small cells’ is an umbrella term for operator -controlled, low-powered radio access nodes, including those that operate in licensed spectrum and unlicensed carrier-grade Wi-Fi. Small cells typically have a range from 10 metres to several hundred metres.

Figure 1-1 Small cells provide improved cellular coverage, capacity and applications for homes and enterprises as well as metropolitan and rural public spaces. Types of small cells include femtocells, picocells, metrocells and microcells – broadly increasing in size from femtocells (the smallest) to microcells (the largest). Any or all of these small cells can be based on ‘femtocell technology’ - i.e. the collection of standards, software, open interfaces, chips and know-how that have powered the growth of femtocells. In these documents we will be primarily referring the Pico and Micro cells as ‘SMALL CELL’. This documents covers in details about the backhaul architecture proposed for the small cells which can be deployed either on the roads or in the buildings.. The primary differenence is as below

1. Small Cells deployed on the road needs to have ring design and parented to two aggregation sites. Considering 100Mbps per cell, upto 10 cells will be daisy chain in one ring. This deployment strategy is used for replacing the Macrocell sites location a lso.

Figure 1-2

2. Small cells deployed in the building will have in-building wiring with point-to-point connectivity from the aggregation site to each small cell location.

Figure 1-3


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Typically the aggregation site is colo in the building itself for better protection. Aggregation is then conneted to backbone network in the ring and parented to two next level aggregation sites. The microcell ring proposed in 1GE. Based on the deployment scenario following will MC/PC per ring

Cell Type Micro Cell Pico cell

No of MC/Ring

BW/ MEN ring in Mbps

10 to 15 NA

50-100 50

Max ring allowed 2 NA

Table 1-1

2 Deployment Scenarios The small cells deployments are typically done in the dense urban, Urban and Semiurban Areas. The deployment methodology and the fiber acrchitecture will vary based on the different scenarios. Typically the scenarios are broadly divided in three scenarios:

1. Create subtended L2 MEN ring from adjacent aggregating spans (CSS-CSS, CSS-AG1 or AG1-AG1, AG1-AG2 or AG2-AG2) for small cells deployed on the roads. 2. Connect small cell like a FTTx demand point for the cells deployed in the FTTx buildings 3. Connect small cell with Ethernet (Fiber port) to central aggr. site for Non FTTX buildings in star topology

2.1

Micro cells deployments on external Structures.

In the above scenarios, typically the micr o/Pico cells deployments are done on the external structures like the electric poles, flyovers, advertising hordings, building etc.

Figure 2-1

In this scenarios Micro cells are installed on the external structures. Additional pico cells are installed to enhace the coverage and NW experience in the coverage zones not covered by the Microcell. In such scenarios, L2 MEN ring is proposed. The L2 Switch will be installed at the microcell location in the external cabinet designed to accommodate the necessary Power Supply, Switch and the FTB. The picocells will be connected to the L2 switch in Point to Point topology.


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The Other Examples are 2/4 cells placements on the hoardings or Flyovers.

Figure 2-2 The connectivity schematic is shown in the Fig-2.1.1. The L2 MEN ring connecting the microcells will be 1GE ring and it wil l be parented to two adjacent CSS/AG1/AG2 locations.

Figure 2-3

2.2

Micro cells deployments In FTTX deployed Area.

In the scenarios, Microcell /Picocell are deployed in large campuses or societies where the FTTX services are deployed. It is assumed that the FTTX services are available in this location.

Figure 2-4


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All backhaul conectvity requirements at the Microcell and Pico Cells will be considered similar to FTTX demand and it will be serviced in the similar manner via ONT. The distribution and the inbuilding cabling deployed for the FTTX services will be used for the Micro Cell/Pico Cell connectivity. The backhaul for Microcell/Picocell will be serviced by the OLT backhaul.

2.3

Micro cells deployments In Non FTTX potential Area.

In scenarios where the Microcell and Pico cells deployment is required in non FTTx served areas such as Malls, Shopping complex, large societies, condoniums, campuses, enterprise building following solution is offered.

Figure 2-5

In this scenario, the L2 aggregation switch will be deployed in the centralized location and all Micro Cell and Pico cell locations are connected to the centralized L2 location in star Fashion. External wiring from the Micro/Pico cell will be done till Centralized location. The Centralized L2 location will be considered as the additional CSS location in the existing CSS ring (1GE) and will be dual homed to nearest two AG1 locations.

3 Fiber Engineering for Small cell This part of the document describes in detail scenario covered in Part 2.1. For the other two scenarios (Part 2.2 and 2.3), the fiber requirement for backhaul is part of in-building wiring.

3.1

Fiber Architecture for Small cell deployed outside buildings

The Microcells are connected in the daisy chain via L2 MEN ring. The L2 MEN ring is dual homed to CSS/AG1 locations. Considering the CSS architecture, the Max distance between two CSS nodes in the CSS rings is Max 2 Kms. Assuming that the Microcells will be placed at every 100 M, max 30 Microcell lo cations will be part of the sections between two CSS.


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Based on the assumptions of the 10/15 Microcell location per L2 MEN ring, 2 pairs of fiber (4F) will be required to meet the Microcell Backhaul requirement assuming maximum 20/30 cells between any two CSS sites. The detailes description of the fiber allocation and splicing plan is described in below sections. We will be deploying the 8F ribbon cable in the with 4F ribbon in the last mile. L2 MEN ring LM cable Ribbon No

Fiber No

Allocation

1

1

L2 MEN ring_1 for MicroCell

1

2


1

3

Spare-L2 MEN ring_1 for MicroCell

1

4


2

1


2

2


2

3


2

4


Table 3-1

1. 2.

3.1.1

L2 MEN ring on CSS path.

For Type-1 and 2 cities, Fiber F1-F8 of the Ribbon R3 will now be allotted to the L2 MEN ring Backhaul. For type-3 cities fiber no F3-F4 of the 4F allotted for each CSS Ring.

Fiber Allocation and Splicing Plan for Type-1, 2 Cities Detailed fiber allocation of the 96F CSS f iber of Type-1 and Type 2 cities is given in the Document “Intracity Fiber Architecture”. In present allocation Ribbon R3 is allotted for the O&M purpose as placeholder. F1-F8 from Ribbon R3 is positioned for small cell backhaul. Ribbon R3 is already terminated in the CSS location, Hence no change in termination plan The detailed allocation for Ribbon R3 for Type-1 and 2 is as below: CSS Ring Ribbon 3 Fiber Allocation Ribbon No

Fiber No

Allocation

3

1


3

2


3 3 3 3 3 3

3 4 5 6 7 8

Spare-L2 MEN ring_1 for MicroCell Spare-L2 MEN ring_1 for MicroCell L2 MEN ring_2 for MicroCell L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell

Table 3-2


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Splicing Plan of L2 Ring LM and CSS OFC for Type-1 and 2 Cities (Typical Example Ring-1) CSS-96F Cable C96F-R1-2,R3-5-8,R4-12* C96F-R1-2,R3-5-8,R4-12

C96F-R1-2,R3-5-8,R4-12* C96F-R1-2,R3-5-8,R4-12

CSS C96F-R3-1 to 4 L2 MEN LM-R2- C96F-R3-1 to 4 L2 MEN LM-R11-4 1 to 4

C96F-R3-1 to 4 L2 MEN LM-R11 to 4

Last Mile 8F Ribbon Cable

Micro Cell L2 Switch

C96F-R3-1 to 4 L2 MEN LM-R21-4

CSS



Figure 3-1

Splicing CSS OFC with Micro Cell LM Ring-1 From

To

Cable-Ribbon No Fiber No

Cable-Ribbon No

Fiber No

CSS-C1-R1-2 CSS-C1-R3 CSS-C1-R3 CSS-C1-R3 CSS-C1-R3 CSS-C1-R3

1 to 8 1 2 3 4 5

CSS-C1-R1-2 LM Ring-1-C1-R1/R2 LM Ring-1-C1-R1/R2 LM Ring-1-C1-R1/R2 LM Ring-1-C1-R1/R2 CSS-C1-R3

1 to 8 1 2 3 4 5

CSS-C1-R3

6

CSS-C1-R3

6

CSS-C1-R3

7

CSS-C1-R3

7

CSS-C1-R3

8

CSS-C1-R3

8

CSS-C1-R4-R12

1 to 8

CSS-C1-R4-R12

1 to 8

Table 3-3 Splicing Plan of L2 Ring LM and CSS OFC for Type-1 and 2 Cities (Typical Example Ring-2)

CSS-96F Cable C96F-R1-2,R3-1-4,R4-12* C96F-R1-2,R3-1-4,R4-12

C96F-R1-2,R3-1-4,R4-12* C96F-R1-2,R3-1-4,R4-12

CSS C96F-R3-5-8 L2 MEN LM-R11 to 4


C96F-R3-5-8 C96F-R3-5-8 L2 MEN LM-R2L2 MEN LM-R11-4

C96F-R3-5-8 L2 MEN LM-R21-4

1 to 4



CSS


Figure 3-2


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Splicing CSS OFC with Micro Cell LM Ring-2 From

To

Cable-Ribbon No Fiber No

Cable-Ribbon No

Fiber No

CSS-C1-R1-2 CSS-C1-R3 CSS-C1-R3 CSS-C1-R3 CSS-C1-R3 CSS-C1-R3

1 to 8 1 2 3 4 5

CSS-C1-R1-2 CSS-C1-R3 CSS-C1-R3 CSS-C1-R3 CSS-C1-R3 LM Ring-2-C1-R1/R2

1 to 8 1 2 3 4 1

CSS-C1-R3

6

LM Ring-2-C1-R1/R2

2

CSS-C1-R3

7

LM Ring-2-C1-R1/R2

3

CSS-C1-R3

8

LM Ring-2-C1-R1/R2

4

CSS-C1-R4-R12

1 to 8

CSS-C1-R4-R12

1 to 8

Table 3-4 Splicing Plan of L2 Ring LM and CSS OFC for Type-1 and 2 Cities falling on CSS-AG1 Path AG1 288F Cable AG1

AG1

EdrawTrialVersion

EdrawTrialVersion

EdrawTrial Version

EdrawTrialVersion

CSS-96F Cable C96F-R1-2,R3-5-8,R4-12* C96F-R1-2,R3-5-8,R4-12 C96F-R3-1 to 4 L2 MEN LM-R11 to 4


C96F-R1-2,R3-5-8,R4-12* C96F-R1-2,R3-5-8,R4-12











Figure 3-3

Fiber Allocation for Type-3 Cities Considering the requirement of Microcells in the Type-3 cites, only one L2 MEN ring is proposed per CSS ring. Hence only one Pair of fiber is allotted. CSS Ring Tube 1 Fiber All ocation Tube No

Fiber No

Allocation

1

1

CSS Ring

1

2

CSS Ring

1 1

3 4

L2 MEN ring_1 for MicroCell L2 MEN ring_1 for MicroCell

1 1

5 6

O&m Use O&m Use

1

7

O&m Use

1

8

O&m Use

Table 3-5 Tube T1 is already terminated at the CSS location and since the OFC in Type-3 cities is 48F LT, the F3 -F4 can be used easily without any disturbance to the CSS ring. Splicing Plan of L2 Ring LM and CSS OFC for Type-3 Cities


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AG1 AG1 48F Cable

CSS-C1-48F-T1-1,2,5-8,T2-6* CSS-C1-48F-T1-1,2,5-8,T2-6

CSS 48F Cable

CSS-C1-48F-T1-1,2,5-8,T2-6* CSS-C1-48F-T1-1,2,5-8,T2-6

CSS

CSS CSS-C1-48F-T1-3,4* LM-C1-T1-1,2

CSS-C1-48F-T1-3,4* LM-C1-T2-1,2

CSS-C1-48F-T13,4* LM-C1-T1-1,2

CSS-C1-48F-T1-3,4* LM-C1-T2-1,2

Last Mile 8F LT Cable


Figure 3-4

Splicing CSS OFC with Micro Cell LM From Cable-Tube-No Fiber No

To Cable-Tube-No

Fiber No

CSS-C1-T1

1

CSS-C1-T1

1

CSS-C1-T1

2

CSS-C1-T1

2

CSS-C1-T1

3

LM-C1-T1/T2

1

CSS-C1-T1

4

LM-C1-T1/T2

2

CSS-C1-T1 CSS-C1-T1 CSS-C1-T1 CSS-C1-T1 CSS-C1-T2-T6

5 6 7 8 1 to 8

CSS-C1-T1 CSS-C1-T1 CSS-C1-T1 CSS-C1-T1 CSS-C1-T2-T6

5 6 7 8 1 to 8

Table 3-6

3.1.2

L2 MEN ring on AG1 and AG2 path.

For the Microcells to be deployed on AG1 and AG2 paths, we have to use two different approaches based on the construction type. The reason for the diiferent approaches are due to following reasons In type 1 and 2, the Cable used in AG1 and AG2 is 288F A Ribbon Cable. The 288F cable was designed for the backbone network. Hence it cannot be used for the microcell connectivities which are planned at every 80-100 M. The Tapping of 288F at frequent interval is not recommended. Additional Cable - L2 MEN Feeder Cable will be laid in the FTTH duct (8F O utdoor Cable) for the sections in which Microcells are planned. This will be used in for the Microcell L2 MEN Ring. We will be using existing 48F in Type-3 Cities.

8F L2 MEN Cable Micro cell With L2 Switch

288F AG1/AG2 Cable

Figure 3-5


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Fiber Allocation of 8Fiber L2 MEN Feeder Cable L2 MEN Ring 8F cable R1 Fiber All ocation Ribbon No

Fiber No

1 1 1 1 2 2 2

1 2 3 4 1 2 3

L2 MEN ring_1 for MicroCell L2 MEN ring_1 for MicroCell Spare-L2 MEN ring_1 for MicroCell Spare-L2 MEN ring_1 for MicroCell L2 MEN ring_2 for MicroCell L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell

Allocation

2

4


Table 3-7

Microcells falling AG1 Paths Type-1, 2 and 3 Cities The microcells falling between AG1 on the AG1 paths (AG1-AG1 Path and AG2-AG2 Pair P ath) will be serviced by R27 of 288 F. For the Microcells falling on AG1-AG2 paths will be serviced by R7 of 96F for Type-1 and R27 in Type-2. This is required as 288F is not terminated in AG1 from AG2 side. The microcells falling on on the AG1 –AG2 paths will be serviced in linear The decision to have the linear connectivity of the Micro cells is due to following reasons  

We have limited ribbons for the AG1-AG2 connectivity. (R1, R2 and R3). The AG1-AG2 paths are of smaller length, hence the NW impact is limited.

The fiber pair allocation of the R27 amd R7 is as bleow CSS Ring Ribbon 27 Fiber Allocation Ribbon No

Fiber No

27 27 27 27 27 27 27 27

1 2 3 4 5 6 7 8

Allocation L2 MEN ring_1 for MicroCell L2 MEN ring_1 for MicroCell Spare-L2 MEN ring_1 for MicroCell Spare-L2 MEN ring_1 for MicroCell L2 MEN ring_2 for MicroCell L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell

Table 3-8 AG1-AG2 Path Ribbon 7 Fi ber Allocation Ribbon No

Fiber No

Allocation

7

1


7 7 7

2 4 5

L2 MEN ring_1 for MicroCell Spare-L2 MEN ring_1 for MicroCell L2 MEN ring_2 for MicroCell

7 7 7

6 7 8

L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell

Table 3-9


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288F AG1 Cable

288F AG2 Cable

C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36

C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36 L2 MEN Cable-R2* L2 MEN Cable-R2

C1-96F- R1-6,R8-12* C1-96F- R1-6,R8-12

96F AG1 Cable L2 MEN CableR1,R2* L2 MEN Cable-R1* C1-96F-R7 L2-MEN-LM-R2


L2 MEN Cable-R2* L2 MEN Cable-R2


L2 MEN CableR1,R2* C1-288F-R27 L2 MEN Cable-R1* L2-MEN-LM-R2

C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36

L2 MEN CableR1,R2* C1-288F-R27


L2 MEN Cable-R1*L2 MEN Cable-R1* L2-MEN-LM-R2 L2-MEN-LM-R2

C1-96F- R1-6,R8-12* C1-96F- R1-6,R8-12


L2 MEN CableL2 MEN CableR1,R2* R1,R2* C1-288F-R27 C1-96F-R7

L2 MEN Cable- L2 MEN CableR1,R2* R1,R2* C1-288F-R27 C1-288F-R27 L2 MEN Cable-R1* L2 MEN Cable-R1* L2-MEN-LM-R2 L2-MEN-LM-R2

L2 MEN Cable-R1* L2-MEN-LM-R2



L2 MEN Cable 8F

Figure 3-6- Micro Cells (Ring-1) on AG1 Path –Type-1 288F AG1 Cable

288F AG2 Cable

C1-288F- R1-26,R28-36* C1-288F-R1-26,R28-36 L2 MEN Cable-R2* L2 MEN Cable-R2

L2 MEN Cable-R1* L2-MEN-LM-R2 Last Mile 8F Ribbon Cable


C1-288F- R1-26,R28-36* C1-288F-R1-26,R28-36



L2 MEN CableR1,R2* L2 MEN CableC1-288F-R27 R1,R2* C1-288F-R27

C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36

L2 MEN Cable- L2 MEN CableR1,R2* R1,R2* C1-288F-R27 C1-288F-R27 L2 MEN Cable-R1*L2 MEN Cable-R1* L2-MEN-LM-R2 L2-MEN-LM-R2


L2 MEN Cable- L2 MEN CableR1,R2* R1,R2* C1-288F-R27 C1-288F-R27





L2 MEN Cable 8F

Figure 3-7- Micro Cells (Ring-1) on AG1 Path –Type-2 The splicing details ofR27 and R7 is as below.

Splicing AG1 288 OFC with Micro Cel l LM From

To

Cable-Ribbon No Fiber No Cable-Ribbon No Fiber No AG1-C1-R1-26 AG1-C1-R27 AG1-C1-R27 AG1-C1-R27 AG1-C1-R27 AG1-C1-R27 AG1-C1-R27 AG1-C1-R27 AG1-C1-R27 AG1-C1-R28-36

1 to 8 1 2 3 4 5 6 7 8 1 to 8

AG1-C1-R26 L2 MEN-C1-R1 L2 MEN-C1-R1 L2 MEN-C1-R1 L2 MEN-C1-R1 L2 MEN-C1-R2 L2 MEN-C1-R2 L2 MEN-C1-R2 L2 MEN-C1-R2 AG1-C1-R28-36

1 to 8 1 2 3 4 1 2 3 4 1 to 8

Table 3-10


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Splicing AG1 96F OFC with Micro Cell LM From

To

Cable-Ribbon No Fiber No Cable-Ribbon No Fiber No AG1-C2-R1-6 AG1-C2-R1-7

1 to 8 1

AG1-C2-R1-6 L2 MEN-C1-R1

1 to 8 1

AG1-C2-R1-7 AG1-C2-R1-7 AG1-C2-R1-7 AG1-C2-R1-7 AG1-C2-R1-7 AG1-C2-R1-7 AG1-C2-R1-7 AG1-C2-R8-12

2 3 4 5 6 7 8 1 to 8

L2 MEN-C1-R1 L2 MEN-C1-R1 L2 MEN-C1-R1 L2 MEN-C1-R2 L2 MEN-C1-R2 L2 MEN-C1-R2 L2 MEN-C1-R2 AG1-C2-R8-12

2 3 4 1 2 3 4 1 to 8

Table 3-11 In case of type-3 cities, we will be using 2F (Fiber-No 3, 4) from T5 tube. Fiber Allocation of T5 CSS Ring9 Fiber Allocation Tube No

Fiber No

Allocation

5

1

CSS Ring

5 5 5 5 5

2 3 4 5 6

CSS Ring L2 MEN ring_1 for MicroCell L2 MEN ring_1 for MicroCell OLT OLT

5

7

OLT

5

8

OLT

Table 3-12 Splicing Plan of L2 Ring LM and CSS OFC for Type-3 Cities C1-48F-T1-4,T5-1-2,5-8,T6* C1-48F-T1-4,T5-1-2,5-8,T6 CSS * 6 6 T T , , 8 8 - 5 5 , , 2 2 - 1 1 - 5 5 T T , , 4 4 - 1 1 T T - F F 8 8 4 4 - 1 1 C C

* 6 6 T T , , 8 8 - 5 5 , , 2 2 - 1 1 - 5 5 T T , , 4 4 - 1 1 T T - F F 8 8 4 4 - 1 1 C C


AG1-C1-48F-T5-3,4* LM-C1-T1-1,2

AG1-C1-48F-T5-3,4* LM-C1-T1-1,2

2 , F 1 8 * 4 1 - 4 , T 1 3 C - 5 1 1 T C G M A L 2 , F 1 8 * 4 1 - 4 , T 1 3 C - 5 1 1 T C G M A L

2 , F 1 8 * 4 1 - 4 , T 1 3 C - 5 1 1 T C G M A L

AG1

l l e c o r c i M

Micro cell


l l e c o r c i M

CSS

Figure 3-8


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Splicing AG1 48 OFC with Micro Cell LM From

To

Cable-Tube No

Fiber No

Cable-Tube No

Fiber No

AG1-C1-T1-1-4

1 to 8

AG1-C1-T1-1-4

1 to 8

AG1-C1-T5 AG1-C1-T5

1 2

AG1-C1-T5 AG1-C1-T5

1 2

AG1-C1-T5

3

LM-C1-R1

3

AG1-C1-T5

4

LM-C1-R1

4

AG1-C1-T5

5

AG1-C1-T5

5

AG1-C1-T5 AG1-C1-T5 AG1-C1-T5

6 7 8

AG1-C1-T5 AG1-C1-T5 AG1-C1-T5

6 7 8

AG1-C1-T6

1 to 8

AG1-C1-T6

1 to 8

Table 3-13

Microcells falling AG2 Paths Type-1, 2 Cities The microcells falling on AG2 Paths will be serviced by R27 of 288 F. The fiber allocation of R 27 is as below. CSS Ring Ribbon 27 Fiber Allocation Ribbon No

Fiber No

27 27 27 27 27 27 27 27

1 2 3 4 5 6 7 8

Allocation L2 MEN ring_1 for MicroCell L2 MEN ring_1 for MicroCell Spare-L2 MEN ring_1 for MicroCell Spare-L2 MEN ring_1 for MicroCell L2 MEN ring_2 for MicroCell L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell Spare-L2 MEN ring_2 for MicroCell

Table 3-14 Splicing Plan Microcells falling on AG2 Paths

288F AG2 Cable C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36


AG2


Last Mile 8F Ribbon Cable L2 MEN Cable-R1* L2-MEN-LM-R2


L2 MEN CableR1,R2* L2 MEN CableC1-288F-R27 R1,R2* C1-288F-R27 L2 MEN Cable-R1* L2 MEN Cable-R1* L2-MEN-LM-R2 L2-MEN-LM-R2

C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36



C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36




C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36


L2 MEN Cable- L2 MEN CableR1,R2* R1,R2* C1-288F-R27 C1-288F-R27 L2 MEN Cable-R1* L2-MEN-LM-R2


AG2


Figure 3-9- Micro Cells (Ring-1) on AG2 P ath –Type-1/2


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L2 MEN Cable 8F


Splicing AG2 288 OFC with Micro Cell LM From

To

Cable-Ribbon No Fiber No Cable-Ribbon No Fiber No AG2-C1-R1-26 AG2-C1-R27 AG2-C1-R27 AG2-C1-R27 AG2-C1-R27 AG2-C1-R27 AG2-C1-R27 AG2-C1-R27 AG2-C1-R27 AG2-C1-R28-36

1 to 8 1 2 3 4 5 6 7 8 1 to 8

AG2-C1-R26 L2 MEN-C1-R1 L2 MEN-C1-R1 L2 MEN-C1-R1 L2 MEN-C1-R1 L2 MEN-C1-R2 L2 MEN-C1-R2 L2 MEN-C1-R2 L2 MEN-C1-R2 AG2-C1-R28-36

1 to 8 1 2 3 4 1 2 3 4 1 to 8

Table 3-15

3.2

Micro Cell Scenarios- Non availability of Sites(CSS/AG1)

The following sections define the scenarios where the desired CSS/AG1 sites are not acquired. The sites are required for the termination of Micro cells rings.The fiber splicing will change in some scenarios as the fiber dimensioning is not sufficient to suffice the fiber pair requirement in such cases.

3.2.1

Scenario-1- Non availability of CSS sites on CSS rings.

In such scenarios, no change in the splicing plan. The Microcells falling on the CSS sites will be terminated to AG1 sites. Limitation of L2 Switches in ring will be there if the numbers are more based on the traffic per L2 switch.

AG1

AG1

AG1 288F Cable

CSS-96F Cable

CSS-C1-96F-R1-2, R3-5-8,R4-12* CSS-C1-96F-R1-2, R3-5-8,R4-12

C96F-R3-1- 4 L2 MEN LM-R1-1-4

C96F-R3-1- 4 L2 MEN LM-R2-1-4


C96F-R3-1- 4 L2 MEN LM-R1-1-4


C96F-R3-1- 4 L2 MEN LM-R2-1-4

C96F-R3-1- 4 L2 MEN LM-R1-1-4

C96F-R3-1- 4 L2 MEN LM-R2-1-4


Figure 3-10- Micro Cells (Ring-1) on CSS Path –Type-1/2


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Issue date : 11.07.2014

Page 16 of 29


AG1 AG1 48F Cable

CSS-C1-48F-T1-1,2,5-8,T2-6* CSS-C1-48F-T1-1,2,5-8,T2-6

CSS-C1-48F-T1-3,4* LM-C1-T1-1,2

CSS-C1-48F-T1-3,4* LM-C1-T2-1,2

CSS-C1-48F-T1-1,2,5-8,T2-6* CSS-C1-48F-T1-1,2,5-8,T2-6

CSS-C1-48F-T13,4* LM-C1-T1-1,2

CSS 48F Cable

CSS-C1-48F-T1-3,4* LM-C1-T2-1,2



Figure 3-11- Micro Cells (Ring-1) on CSS Path –Type-3

3.2.2

Scenario-2- Non availability of CSS/AG1 sites on AG1 Paths.

In such scenarios, no site is available for the aggregation of the L2 MEN ring traffic. The traffic aggregation needs to be done on the AG2 Sites. No change in the splicing of the L2 MEN switch to L2 MEN LM cable. The proposed solution is as follows

1. Acquisition of standalone AG1 site. This will ensure the aggregation is a ccomplished at the right level and no futher movement of traffic to AG2. 2. In case Acquisition of sites is not feasible, the aggregation will be done to AG2 sites, but at the opposite of desired parent AG2 of the AG1 Link. The traffic between the CSS-AG1 for the parented CSS rings (1-4), will be provisioned in linear and will not be ofloaded on AG1 paths.

AG1 pair-1

AG1 pair-2

Micro Cell ring Parenting * 6 6 3 3 - 4 4 R R - F F 8 8 8 8 2 2 - 1 1 C C - 2 2 G G A A

t a 1 C - G H A M M Z

AG1-C1-96F-R6* AG2-C1-288F-R3

AG1-C1-96F-R1-3* AG2-C1-288F-R1-3

ZMH-B at MAG1

ZMH-A at MAG1

ZMH-B at MAG1

ZMH at MAG1

AG1-C1-96F-R1-3* AG2-C1-288F-R1-3

AG1 Ring Parenting

Micro Cell ring Parenting

AG1 Ring Parenting

AG1-C1-96F-R6* AG2-C1-288F-R3

Figure 3-12- L2 MEN rings with No Sites on AG1 Path


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Page 17 of 29


* 6 6 3 3 - 4 4 R R - F F 8 8 8 8 2 2 - 1 1 C C - 2 2 G G A A


Splicing Plan at ZMH-A, B, C, for Type-1 Cities ZMH Splicing Details-A Path

Cable

Ribbon Fiber Path

Cable

Ribbon Fiber

AG1-AG2 Path 96F

R1

1 to 4 AG1-AG1 Path 96F

R1

1 to 4

AG1-AG2 Path 96F

R1


R1

5 to 8

AG1-AG2 Path 96F

R2


R7

1 to 4

AG1-AG2 Path 96F

R2


R13

5 to 8

AG1-AG2 Path 96F

R3


R19

1 to 4

AG1-AG2 Path 96F

R3


R25

5 to 8

AG1-AG2 Path 96F

R6


R27

1,2,5,6

AG1-AG2 Path 96F

R6


R7

1,2,5,6

*** Remaining Ribbon and Fibers are Open

Table 3-16 ZMH Splicing Details-B Path

Cable

Ribbon Fiber Path

Cable

Ribbon Fiber

AG1-AG1 Pair Path 96F

R1


R1

1 to 4


R1


R1

5 to 8

AG1-AG1 Pair Path AG1-AG1 Pair Path AG1-AG1 Pair Path AG1-AG1 Pair Path

96F 96F 96F 96F

R2 R2 R3 R3

1 to 4 5 to 8 1 to 4 5 to 8

288F 288F 288F 288F

R7 R13 R19 R25

1 to 4 5 to 8 1 to 4 5 to 8


R6


R27

1 to 8

AG1-AG1 Path AG1-AG1 Path AG1-AG1 Path AG1-AG1 Path

Table 3-17 ZMH Splicing Details-C Path

Cable

Ribbon Fiber Path

Cable

Ribbon Fiber

AG1-AG2 Path 96F AG1-AG2 Path 96F AG1-AG2 Path 96F

R1 R2 R3

1 to 8 AG2-AG2 Path 288F 1 to 8 AG2-AG2 Path 288F 1 to 8 AG2-AG2 Path 288F

R1 R2 R3

1 to 8 1 to 8 1 to 8

AG1-AG2 Path 96F

R6


R3

1 to 8

Table 3-18

Splicing Plan at ZMH-A, B, C, for Type-2 Cities ZMH Splicing Details-A Path

Cable

Ribbon Fiber Path

Cable

Ribbon Fiber

AG1-AG2 Path

288F

R31


R31

1 to 4

AG1-AG2 Path

288F

R31


R1

5 to 8

AG1-AG2 Path

288F

R32


R7

1 to 4

AG1-AG2 Path

288F

R32


R13

5 to 8

AG1-AG2 Path

288F

R33


R19

1 to 4

AG1-AG2 Path

288F

R33


R25

5 to 8

AG1-AG2 Path

288F

R27


R27

1 to 8

Table 3-19


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Issue date : 11.07.2014

Page 18 of 29


ZMH Splicing Details-B Path

Cable

Ribbon Fiber Path

Cable

Ribbon Fiber


R31


R1

1 to 4


R31


R1

5 to 8


R32


R7

1 to 4


R32


R13

5 to 8


R33


R19

1 to 4


R33


R25

5 to 8


R27


R27

1 to 8


Cable

Ribbon Fiber Path

Cable

Ribbon Fiber

AG1-AG2 Path

96F

R31


R1

1 to 8

AG1-AG2 Path AG1-AG2 Path

96F 96F

R32 R33

1 to 8 AG2-AG2 Path 288F 1 to 8 AG2-AG2 Path 288F

R2 R3

1 to 8 1 to 8

AG1-AG2 Path

96F

R27


R3

1 to 8

Table 3-21 The details given in above table are specific for an example of Aggregate Ring-1. The ribbon on AG2-AG2 path will change as per Aggregate ring nos.

3.2.3

Scenario-3- Non availability of sites (CSS and AG1) on CSS and AG1 Paths.

In such scenarios, no site is available for the aggregation on the CSS or AG1 paths of the L2 MEN ring traffic. The traffic aggregation needs to be done on the AG2 Sites. For aggregating the traffic at the AG2 Sites,and to avoid the splicing complexities at the field, the proposed solution is as follows

1. Acquisition of standalone AG1 site. This will ensure the aggregation is accomplished at the right level and no futher movement of traffic to AG2. 2. In case Acquisition of sites is not feasible, the aggregation will be done to AG2 sites, but at the opposite of desired parent AG2 of the AG1 Link. The traffic of the L2 rings on the CSS links will also be aggregated on AG2. The traffic for all L2 Rings of CSS Path, AG1-AG1 path, and AG1-AG1 pair paths will be provisioned in ring to opposite AG2 of the AG2 ring on which the AG1 ring parenting is done.The traffic of AG1-AG2 path will be in linear.

Splicing Plan at ZMH-A, B, C, and D for Type-1 Cities


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Issue date : 11.07.2014

Page 19 of 29


AG1 pair-1

* 6 6 3 3 - 3 3 3 3 - R R , , 0 0 3 3 - t - 4 4 a R R 1 - F F C 8 - G 8 8 8 A H 2 2 M 1 1 M C C - - Z 2 2 G G A A

AG1 pair-2

Micro Cell ring Parenting AG1-C1-96F-R4-6,9,10 AG2-C1-288F-R1-3,31,32

AG1-C1-96F-R1-3* AG2-C1-288F-R1-3

ZMH-B at MAG1

ZMH-A at MAG1

ZMH-D at MAG1

ZMH at MAG1

AG1-C1-96F-R1-3* AG2-C1-288F-R1-3

AG1 Ring Parenting

Micro Cell ring Parenting AG1-C1-96F-R4-6,9,10 AG2-C1-288F-R1-3,31,32

AG1 Ring Parenting

Figure 3-13- L2 MEN rings with No Sites on AG1 and CSS Path in Type-1 Cities

ZMH Splicing Details-A Path

Cable

Ribbon

Fiber

Path

Cable

Ribbon

Fiber

AG1-AG2 Path

96F

R1

1 to 4

AG1-AG1 Path

96F

R1

1 to 4

AG1-AG2 Path

96F

R1

5 to 8

AG1-AG1 Path

288F

R1

5 to 8

AG1-AG2 Path

96F

R2

1 to 4

AG1-AG1 Path

288F

R7

1 to 4

AG1-AG2 Path

96F

R2

5 to 8

AG1-AG1 Path

288F

R13

5 to 8

AG1-AG2 Path

96F

R3

1 to 4

AG1-AG1 Path

288F

R19

1 to 4

AG1-AG2 Path

96F

R3

5 to 8

AG1-AG1 Path

288F

R25

5 to 8

AG1-AG2 Path

96F

R4

1 to 4

AG1-AG1 Path

288F

R3

1,2,5,6

AG1-AG2 Path

96F

R4

5 to 8

AG1-AG1 Path

288F

R9

1,2,5,6

AG1-AG2 Path

96F

R5

1 to 4

AG1-AG1 Path

288F

R15

1,2,5,6


96F 96F

R5 R6

5 to 8 1 to 4


288F 288F

R21 R27

1,2,5,6 1,2,5,6

AG1-AG2 Path

96F

R6

5 to 8

AG1-AG2 Path

96F

R7

1,2,5,6

AG1-AG2 Path

96F

R9

1 to 8

AG1-AG1 Path

96F

R9

1 to 8

AG1-AG2 Path

96F

R10

1 to 8

AG1-AG1 Path

96F

R10

1 to 8

Ribbon

Fiber


Cable

Ribbon

Fiber

Path

Cable


R1

1 to 4

AG1-AG1 Path

96F

R1

1 to 4


R1

5 to 8

AG1-AG1 Path

288F

R1

5 to 8


R2

1 to 4

AG1-AG1 Path

288F

R7

1 to 4


R2

5 to 8

AG1-AG1 Path

288F

R13

5 to 8


96F 96F 96F 96F

R3 R3 R4 R4

1 to 4 5 to 8 1 to 4 5 to 8


288F 288F 288F 288F

R19 R25 R3 R9

1 to 4 5 to 8 1,2,5,6 1,2,5,6


R5

1 to 4

AG1-AG1 Path

288F

R15

1,2,5,6


R5

5 to 8

AG1-AG1 Path

288F

R21

1,2,5,6


R6

1 to 8

AG1-AG1 Path

288F

R27

1 to 8


R9

1 to 8

AG1-AG1 Path

96F

R9

1 to 8


R10

1 to 8

AG1-AG1 Path

96F

R10

1 to 8

Table 3-23


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* 6 6 3 3 - 3 3 3 3 - R R , , 0 0 3 3 - 4 4 R R - F F 8 8 8 8 2 2 - 1 1 C C - 2 2 G G A A


ZMH Splicing Details-D Path

Cable

Ribbon

Fiber

Path

Cable

Ribbon

Fiber


R1

1 to 4

AG1-AG1 Path

96F

R1

1 to 4


R1

5 to 8

AG1-AG1 Path

288F

R1

5 to 8


R2

1 to 4

AG1-AG1 Path

288F

R7

1 to 4


R2

5 to 8

AG1-AG1 Path

288F

R13

5 to 8

AG1-AG1 Pair Path 96F AG1-AG1 Pair Path 96F

R3 R3

1 to 4 5 to 8


288F 288F

R19 R25

1 to 4 5 to 8

AG1-AG1 Pair Path AG1-AG1 Pair Path AG1-AG1 Pair Path AG1-AG1 Pair Path AG1-AG1 Pair Path AG1-AG1 Pair Path AG1-AG1 Pair Path

R4 R5 R6 R9 R9 R10 R10

1 to 8 1 to 8 1 to 8 1 to 4 5 to 8 1 to 4 5 to 8

AG1-AG1 Path AG1-AG1 Path AG1-AG1 Path AG1-AG1 Path AG1-AG1 Path AG1-AG1 Path AG1-AG1 Path

96F 96F 288F 288F 288F 288F 288F

R9 R10 R27 R3 R9 R15 R21

1 to 8 1 to 8 1 to 8 1,2,5,6 1,2,5,6 1,2,5,6 1,2,5,6

96F 96F 96F 96F 96F 96F 96F


Cable

Ribbon

Fiber

Path

Cable

Ribbon

Fiber

AG1-AG2 Path

96F

R1

1 to 8

AG2-AG2 Path

288F

R1

1 to 8

AG1-AG2 Path

96F

R2

1 to 8

AG2-AG2 Path

288F

R2

1 to 8

AG1-AG2 Path AG1-AG2 Path AG1-AG2 Path AG1-AG2 Path AG1-AG2 Path AG1-AG2 Path

96F 96F 96F 96F 96F 96F

R3 R4 R5 R6 R9 R10

1 to 8 1 to 8 1 to 8 1 to 8 1 to 8 1 to 8


288F 288F 288F 288F 288F 288F

R3 R1 R2 R3 R31 R32

1 to 8 1 to 8 1 to 8 1 to 8 1 to 8 1 to 8

Table 3-25 Splicing Plan at ZMH-A, B, C, and D for Type-2 Cities

AG1 pair-1

AG1 pair-2

Micro Cell ring Parenting * 4 4 3 3 - 4 4 R R - - t F F a 8 8 1 8 8 2 2 - - C 1 1 - G C A C - - H 2 2 M G M G A A Z

AG1-C1-288FF-R4,5,6,9,10 AG2-C1-288F-R1,2,3,35,36

ZMH-A at MAG1

AG1-C1-96F-R1-3* AG2-C1-288F-R1-3

ZMH-B at MAG1

ZMH-D at MAG1

ZMH at MAG1

AG1-C1-96F-R1-3* AG2-C1-288F-R1-3

AG1 Ring Parenting

Micro Cell ring Parenting AG1-C1-288FF-R4,5,6,9,10 AG2-C1-288F-R1,2,3,35,36

AG1 Ring Parenting

Figure 3-14- L2 MEN rings with No Sites on AG1 and CSS Path in Type-2 Cities


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Issue date : 11.07.2014

Page 21 of 29

* 4 4

3 3 t - 4 4 a R 1 R - F F C 8 - G 8 8 2 H A 8 2 - M 1 1 M C C - Z 2 2

G G A A


ZMH Splicing Details-A Path

Cable

Ribbon

Fiber

Path

Cable

Ribbon

Fiber

AG1-AG2 Path

288F

R31

1 to 4

AG1-AG1 Path

288F

R31

1 to 4

AG1-AG2 Path

288F

R31

5 to 8

AG1-AG1 Path

288F

R1

5 to 8

AG1-AG2 Path

288F

R32

1 to 4

AG1-AG1 Path

288F

R7

1 to 4

AG1-AG2 Path

288F

R32

5 to 8

AG1-AG1 Path

288F

R13

5 to 8

AG1-AG2 Path

288F

R33

1 to 4

AG1-AG1 Path

288F

R19

1 to 4

AG1-AG2 Path

288F

R33

5 to 8

AG1-AG1 Path

288F

R25

5 to 8

AG1-AG2 Path

288F

R4

1 to 4

AG1-AG1 Path

288F

R3

1,2,5,6

AG1-AG2 Path

288F

R4

5 to 8

AG1-AG1 Path

288F

R9

1,2,5,6

AG1-AG2 Path

288F

R5

1 to 4

AG1-AG1 Path

288F

R15

1,2,5,6


288F 288F

R5 R27

5 to 8 1 to 8


288F 288F

R21 R27

1,2,5,6 1 to 8

AG1-AG2 Path

288F

R9

1 to 8

AG1-AG1 Path

96F

R35

1 to 8

AG1-AG2 Path

288F

R10

1 to 8

AG1-AG1 Path

96F

R36

1 to 8


Cable

Ribbon

Fiber

Path

Cable

Ribbon

Fiber

AG1-AG2 Path

288F

R31

1 to 4

AG1-AG1 Path

288F

R31

1 to 4

AG1-AG2 Path

288F

R31

5 to 8

AG1-AG1 Path

288F

R1

5 to 8

AG1-AG2 Path

288F

R32

1 to 4

AG1-AG1 Path

288F

R7

1 to 4

AG1-AG2 Path

288F

R32

5 to 8

AG1-AG1 Path

288F

R13

5 to 8

AG1-AG2 Path 288F AG1-AG2 Path 288F AG1-AG1 Pair Path 288F

R33 R33 R4

1 to 4 5 to 8 1 to 4

AG1-AG1 Path AG1-AG1 Path AG1-AG1 Path

288F 288F 288F

R19 R25 R3

1 to 4 5 to 8 1,2,5,6


R4

5 to 8

AG1-AG1 Path

288F

R9

1,2,5,6


R5

1 to 4

AG1-AG1 Path

288F

R15

1,2,5,6


R5

5 to 8

AG1-AG1 Path

288F

R21

1,2,5,6


R27

1 to 8

AG1-AG1 Path

288F

R27

1 to 8


R9

1 to 8

AG1-AG1 Path

288F

R35

1 to 8


R10

1 to 8

AG1-AG1 Path

288F

R36

1 to 8

Table 3-27 ZMH Splicing Details-D Path

Cable

Ribbon

Fiber

Path

Cable

Ribbon

Fiber

AG1-AG2 Path

288F

R31

1 to 4

AG1-AG1 Path

288F

R31

1 to 4

AG1-AG2 Path

288F

R31

5 to 8

AG1-AG1 Path

288F

R1

5 to 8

AG1-AG2 Path

288F

R32

1 to 4

AG1-AG1 Path

288F

R7

1 to 4

AG1-AG2 Path

288F

R32

5 to 8

AG1-AG1 Path

288F

R13

5 to 8


288F 288F

R33 R33

1 to 4 5 to 8


288F 288F

R19 R25

1 to 4 5 to 8


R4

1 to 8

AG1-AG1 Path

288F

R35

1 to 8


288F 288F 288F 288F

R5 R27 R9 R9

1 to 8 1 to 8 1 to 4 5 to 8


288F 288F 288F 288F

R36 R27 R3 R9

1 to 8 1 to 8 1,2,5,6 1,2,5,6

AG1-AG1 Pair Path 288F AG1-AG1 Pair Path 288F

R10 R10

1 to 4 5 to 8


288F 288F

R15 R21

1,2,5,6 1,2,5,6

Table 3-28


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Issue date : 11.07.2014

Page 22 of 29


ZMH Splicing Details-C Path

Cable

Ribbon

Fiber

Path

Cable

Ribbon

Fiber

AG1-AG2 Path

288F

R31

1 to 8

AG2-AG2 Path

288F

R1

1 to 8

AG1-AG2 Path

288F

R32

1 to 8

AG2-AG2 Path

288F

R2

1 to 8


288F 288F 288F 288F 288F 288F

R33 R4 R5 R27 R9 R10

1 to 8 1 to 8 1 to 8 1 to 8 1 to 8 1 to 8


288F 288F 288F 288F 288F 288F

R3 R1 R2 R3 R35 R36

1 to 8 1 to 8 1 to 8 1 to 8 1 to 8 1 to 8

Table 3-29

3.2.4

Scenario-4- Non availability of CSS/AG1 sites on AG2 Paths.

In this scenario, no site is available on the AG2 paths except the AG2 sites. All aggregation will be done at the AG2 site. No change in Splicing plan.

288F AG2 Cable C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36


AG2


Last Mile 8F Ribbon Cable L2 MEN Cable-R1* L2-MEN-LM-R2

3.3


L2 MEN CableR1,R2* L2 MEN CableC1-288F-R27 R1,R2* C1-288F-R27 L2 MEN Cable-R1* L2 MEN Cable-R1* L2-MEN-LM-R2 L2-MEN-LM-R2


C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36



L2 MEN Cable-R1* L2 MEN Cable-R1* L2-MEN-LM-R2 L2-MEN-LM-R2

C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36



C1-288F- R1-26,R28-36* C1-288F- R1-26,R28-36



L2 MEN Cable- L2 MEN CableR1,R2* R1,R2* C1-288F-R27 C1-288F-R27 L2 MEN Cable-R1* L2-MEN-LM-R2


AG2


L2 MEN Cable 8F

Fiber Architecture for Microcell/Picocell deployed at FTTX Area

In this scenario, the microcell and picocell will be served by the ONT SFP. The ONT port will be inserted in small cell fiber Ethernet port for backhaul. The FTTX Feeder and distribution NW will not be impacted for the OLT-ONT connectivity. Fiber engineering released for OLT uplink will remain same whether small cell is served or not.

3.4

Fiber Architecture for Microcell/Picocell deployed at Non-FTTX Area

In this scenario, the microcell and picocell will be served by the L2 Switch. All Picocells and Microcells are extended on fiber to the centralized L2 location. The centralized L2 location will be treated as CSS node.The CSS ring can be of 1*1GE o r 1*10GE capacity and dual homed to AG1 location and its fiber engineering spec. will remain same.


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Issue date : 11.07.2014

Page 23 of 29


4 Last Mile outside Plant for Small Cell This part of the documents cover the additional OSP (Last Mile) requirements in details for all three secnarios described earlier.

4.1

Micro Cell /Pico Cell deployment on external structures

In these scenarios following two deployment feasibilities are possible

4.1.1

Micro Cells falling on the existing Intracity NW paths

In these cases the Micro Cells are mounted o n the external structures and they are very near presence to the existing intracity NW (Within 5-25M). Following table explains the cable requirement for the LM and the L2 MEN ring cable on the AG1/2 paths.

Sr.No

Intracity Type

1

1 and 2

2 3

Link Type

Cable

Application

Duct

Type

Nos

Duct Type

Duct No

CSS/AG1/AG2 Last Mi le

8F A 4 fiber ribbon Cable

1 40/33 HDPE

1

3

CSS/AG1

Last Mile

8F A 4Fiber per tube Cable

1 40/33 HDPE

1

1 and 2

AG1/AG2

L2 MEN Ring Feeder Cable

8F A 4 fiber ribbon Cable

1

FTTX DUCT

Table 4-1 The vertical section of the LM cable (On Pole/Pillars, Hordings etc) will be protected by external casing (GI/DWC/HDPE etc). For extending the LM cable from the MH to the external structures will be via HDPE pipe. The detailed description will be covered in additional documents/Drawing released by Engineering. The brief general specification of the optical cable is as below

Connector Specificati Ribbon Cable

Loose Tube

Fibre Specification Attenuation (dB/km) Singlemode

0.35@1310nm / 0.25

0.35@1310nm /

@1550nm

0.25 @1550nm

Chromatic Dispersion (ps/nm x 3.0 @ 1310nm / 18.0 km) Singlemode @1550nm

3.0 @ 1310nm / 18.0 @1550nm

Armoured Cable Specification Fiber Count

8

8

Cable OD Strength Member

>=10MM FRP/Steel

>=10MM FRP/Steel

Fire Specification

IEC 60332-1

IEC 60332-1

1 or 2 4

NA 4

Ribbons per Tube Fibers per Ribbon/Tube Method of Laying

Pulling/Blowing

Pulling/Blowing

Protection

Armoured

Armoured

Table 4-2


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The new joint closure need to be designed for the Feeder cable and LM cable jointing.

Figure 4-1

MicroCell Schematic with LM and Feeder Cable

Figure 4-2 Cable Tray-Splicing of Various combinations


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Figure 4-3

4.1.2

Micro Cells falling on the non existing Intracity NW paths

This scenario covers the sections which are not covered by the intracity NW, i.e away from existing intracity NW. To cover these sections, we need to construct the incremental route to conncet the Microcell.


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Figure 4-4

Figure 4-5

Following is the duct and OFC structure.

Duct- 2 Nos 40/33mm, Duct colour will be decided by Engineering One duct will be used for the Microcell L2 MEN ring and the spare duct will be used for the FTTx purpose in Future.

8F Ribbon Armoured cable - This cable will be used for Microcell alone. No sharing of the cable fo r any other purpose. The Specs will be similar to L2 MEN feeder cable described in earlier sections MH should be used similar to Manholes used in the FTTx (Single Lid L-700mm, W-450mm, D-600mm) with MH at every Microcell location. The spacing between MH should not be more than 100 M.

LM MEN FEEDER CABLE OSP PLANT Material

Type

Nos

Duct

40/33 mm HDPE Duct

2 Nos

OFC

8F Ribbon Cable

MH

700mm*450mm* 600mm

Remark One Duct for L2 MEN Feeder cable and 2nd duct for FTTx

1 Nos Near to Microcell or Every 100 M

10M Loop at every MH

Table 4-3

4.2

Fiber Architecture for Microcell/Picocell deployed at FTTX Area

In this case, backhaul to Micro/Pico Cells will be through the OLT. The all Micro/Pico Cells locations will be demand point on FTTX network. The feeder and distribution network of the F TTX network will be used for the Micro/Pico cell to OLT backhaul.


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4.3

Fiber Architecture for Microcell/Picocell deployed at Non-FTTX Area

In this scenario, the microcell and picocell will be served by the L2 Switch. All Picoc ells and Microcells are extended on fiber to the centralized L2 location. The centralized L2 location will be treated as CSS node.The CSS ring can be of 1*1GE or 1*10GE capacity and dual homed to AG1 location. In case if the L2 Switch location is on the Existing Intracity Route, the LM required will be from the Existing MH to the L2 Location. In case if the L2 Switch location is away from the existing Intracity Route, the incremental route is required to connect the L2 Location. In both cases (LM and Intramental route), the CSS route OSP plant structure will be followed (3 ducts/96F Ribbonin Type-1 and 2 and 3 Ducts/48F LT).

Figure 4-6

From the Centralized L2 Location to the Micro/Pico cell locations inbuilding work is required. The detailed designs of each area will depend on the layout of the area. Following is the basic inbuilding work and material involved.


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Sr.No

Description

Methodology

Material

External ROW - HDD/OT/MT 1

Internal Last Mile for Centralize d L2 1. Mouling Location ZMH 2.Wall Clamping 3.Existing Duct/Hume Pipe of Premise 4.Chipping

40Mm PV C Conduits/2 Nos + 48F OFC

2

LM ZMH to L2 Location

3

2* 25Mm PVC conduits+ Felixible L2 Location to Micro/Pico Ce ll Mounting of PVC conduits (Ri ser and Drop) Conduits at bends 24F rise r cable 4F drop Cable

4 5

Mounting of PVC conduits

40MM Ducts/3 Nos 48F OFC

Ope n are a i n N on FTTX A re a

Any of the feasible Methodology explained 40MM Ducts/1 Nos in Sr.No 1 24F LT Armoured OFC

Manhol e i n Non FTTX Are a

As per the FTTx standard

700mm *450 mm* 600 mm

Table 4-4 The details of other consumables like bends, termination Boxes etc will be given in the BOQ of the inbuilding work. Please refer the FTTx documents for the specification of the 24F riser and 4F drop c ables.


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Small Cell Backhaul Rev New

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