We are proud to present this booklet entitled “Guidelines for the City of Chicago Streetscape and Urban Design Program.” These guidelines have been prepared for community leaders, public o…Full description
IBS Design Guidelines 1. Initial Meeting/Survey with Building Owner (Constructed Buildings) or Consultants (Buildings Under Construction) 1.1 To discuss Etisalat Requirements 1.1.1
Main Equipment Room – BTS Location
a) Power 1. To provide 415V AC 3 phase + N + E in 4 way AC PDB with 63A isolator/ELCB & two twin sockets in each equipment room with MBI5 BTS or Node B. 2. To provide two twin sockets (240V AC, 13A) in each room with RRU or BBU. 3. To provide telecom ground/earth bar in each Equipment room. b) Cooling 1. To provide 21 deg Celsius cooling inside the room 2. 330-500 cubic feet per minute (CFM) air flow c) Fire Detection 1. To provide smoke detector d) Fire Suppression 1. To provide fire extinguisher – dry powder or gas based system e) Room 1. 3m x 3m (block walls) 2. FCU, water pipes & water sprinkler for fire protection should not be installed inside the Equipment Rooms. 3. Coring should be provided to be used for horizontal and vertical feeder cable runs from the equipment to the antennas. f) Room Security & Accessibility 1. Locked & secured 2. Accessible 24/7 for maintenance & troubleshooting purposes 3. Free from obstruction & combustible materials 1.1.2
Radio Remote Unit Rooms
a) Power 1. To provide two twin sockets (240V AC, 13A) 2. To provide telecom ground/earth bar 3. To provide UPS in each room with RRU or BBU (recommended but not required). b) Cooling 1. To provide ventilation inside the room (louver) c) Fire Detection 1. As per Civil Defense d) Fire Suppression 1. As per Civil Defense e) Room 1. 1.5m x 1.5m wall space 2. Coring should be provided to be used for horizontal and vertical feeder cable runs from the equipment to the antennas. f) Room Security & Accessibility 1. Locked & secured 2. Accessible 24/7 for maintenance & troubleshooting purposes 3. Free from obstruction & combustible materials 1.1.3 1.1.4 1.1.5 1.1.6
Cable Trays – Horizontal and Vertical – in all areas – with or without false ceiling. Access Panels for locations of splitters (60 X 60 cm) Coring for horizontal (wall) and vertical (risers) cable runs Du Sharing – Double the requirements
1.2 Site Information Gathering 1.2.1
Building Owner/Contact Persons
1.2.2
Drawings (AUTOCAD, Scaled Format, Final)
a) b) c) d) e) f) 1.2.3
Architectural Layouts Elevation Plans Reflected Ceiling Plans – Location of Access Panels Occupancy Loading – For Subscriber Capacity Estimation Cable Tray Drawings Telephone Room Layouts Areas to be covered and restricted areas
a) To allow antennas inside flats 1.2.4 a) b) c) d) 1.2.5
For Buildings under construction Construction Stage False Ceiling Closure Schedule (deadline for the design) Expected Completion Date MEP contractors should provide 2 months notice period before close the false ceiling For Completed Buildings
a) NOC to proceed with the IBS Design. 1.3 Minutes of Meeting should be submitted to track site status/condition. 2. Initial Design 2.1
Antenna Locations a) b) c) d) e)
2.2
95% Coverage probability at -75 dBm for GSM 900 & -85 dBm for UMTS Not more than 30% coverage overlapping between antennas Simulation test or RF-Vu prediction for completed buildings RF-Vu prediction for sites under construction Dedicated Antenna for Lifts
Equipment Location, Cable Routing and Riser Verification a) Initial site survey for completed buildings b) On paper verification with consultants if building is still under construction.
2.3
Approval from Etisalat and Building Owner/Consultant
3
Branch Survey for BTS room approval with Etisalat
4
Design Stage 4.1
Design Considerations a) Du sharing considerations 1. 2.
Triplexer to combine GSM 900, DCS 1800 & UMTS 3 dB Hybrid Coupler to combine Etisalat and Du UMTS carriers
b) UMTS Design considerations
1. Huawei DBS 3900 – APM + BBU + RRU (subject to change as per equipment availability and client request) 1.1 1.2 1.3 1.4 1.5 1.6 2.
Maximum of 5 BBUs per APM Maximum of 2 sectors per BBU Maximum of 6 cells per BBU (2 cells per RRU if 2nd carrier is activated) Maximum of 3 RRUs per BBU if second carrier is activated 34.7712 dBm CPICH power per RRU (2nd carrier activated) 37.7815 dBm CPICH power per RRU (single carrier activated)
Huawei BTS 3900 2.1 3 Sectors per Node B 2.2 33 dBm CPICH Power (2nd carrier activated) 2.3 36 dBm CPICH Power (single carrier activated)
3. Balanced EIRP for all antennas with consideration to the following coverage criteria 3.1 3.2
-85 dBm at the edge of the building Signal to be contained inside the building to avoid spillage
c) GSM Design considerations 1.
Balanced EIRP for all antennas with consideration to the following coverage
criteria 1.1 1.2 2. 3.
4.
5.
6. 7.
8. buildings
-75 dBm at the edge of the building Signal to be contained inside the building to avoid spillage
High Power TREs – 43 dBm output power VLL Configuration for 4HPTRE/sector a) 43 dBm output power/antenna output b) 2 antenna outputs from BTS c) 1 external combining stage VLL Configuration for 8HPTRE/sector a) 43 dBm output power/antenna output b) 4 antenna outputs from BTS c) 2 external combining stages LL Configuration for 12TRE/sector a) 38 dBm output power/antenna output b) 4 antenna outputs from BTS c) 2 external combining stages Capacity based on Occupancy Loading Use Twin TRE for high capacity buildings a) 41 dBm output power b) 24TRXs per rack c) MBI5 AB Variant rack Use M5M for buildings with no suitable equipment room/ low capacity d) 38.45 dBm output power/antenna output e) 2 TRX per unit f) 1 external combining stage
d) Cable Routing consideration
1. 10% additional cable per run (margin of error) 2. 2M jumper to be considered for 7/8” cables and component to component connection e) Schematic consideration 1. Use of 2 way or 4 way splitter as main splitter for ease of multi-operator combining f)
Power budget consideration 1.
To include jumpers, connectors and combining components in the power budget calculation for both GSM & UMTS
2.
GSM Losses a. b. c. d. e. f. g. h. i. j.
2-way splitter – 3.2 dB 3-way splitter – 5 dB 4-way splitter – 6.2 dB 6-way splitter – 8.3 dB Connector Loss – 0.05 dB/ connector LDF ½” – 7.12 dB/ 100 meter LDF 7/8” – 4.02 dB/100 meter Triplexer – 0.2 dB Hybrid Coupler – 3.3 dB Adjustable Asymmetric Splitter (Directional Coupler) 1. 2. 3. 4. 5. 6.
3.
Setting at 5 dB – 6. 3 dB High Loss port – 1.3 dB Low Loss port Setting at 6 dB – 7.1 dB High Loss port – 1.1 dB Low Loss port Setting at 8 dB – 8.7 dB High Loss port – 0.7 dB Low Loss port Setting at 10 dB – 10.5 dB High Loss port – 0.5 dB Low Loss port Setting at 13 dB – 13. 3 dB High Loss port – 0.3 dB Low Loss port Setting at 15 dB – 15.2 dB High Loss port – 0.2 dB Low Loss port
UMTS Losses a. b. c. d. e. f. g. h. i. j.
2-way splitter – 3.4 dB 3-way splitter – 5.2 dB 4-way splitter – 6.4 dB 6-way splitter – 8.5 dB Connector Loss – 0.08 dB/ connector LDF ½” – 11.2 dB/ 100 meter LDF 7/8” – 6.46 dB/100 meter Triplexer – 0.5 dB Hybrid Coupler – 3.6 dB Adjustable Asymmetric Splitter (Directional Coupler)
1.Setting at 5 dB – 6. 3 dB High Loss port – 1.3 dB Low Loss port 2.Setting at 6 dB – 7.1 dB High Loss port – 1.1 dB Low Loss port 3.Setting at 8 dB – 8.7 dB High Loss port – 0.7 dB Low Loss port 4.Setting at 10 dB – 10.5 dB High Loss port – 0.5 dB Low Loss port 5.Setting at 13 dB – 13. 3 dB High Loss port – 0.3 dB Low Loss port 6.Setting at 15 dB – 15.2 dB High Loss port – 0.2 dB Low Loss port g) BTS & APM should be in the same location – for GSM & UMTS Site ID/Code reasons 4.2
Achieved EIRP Level, Capacity, Sectoring and type/number of Equipment should be discussed with and approved by Etisalat planning team.
5
Design Submissions 5.1
Etisalat
a) RNS 1. Antenna Locations (JPEG, PDF) (Site Name should be mentioned in each layout) 2. Bill of Quantities (MS EXCEL) a) b) c) d) e) f) g)
10 % more additional cable in the grand total BOQ (wastage) 60% straight connectors & 40% angle connectors BTS – Alcatel MBI5, M5M Node B – Huawei BTS 3900 BBU – Huawei BBU 3900 RRU – Huawei RRU3804c – outdoor type – ac voltage APM – Huawei APM30H
3. Building Area Calculation (MS EXCEL) 4. Building Description (MS WORD) a) b) c) d) e) 5. 6.
Contact Persons (MS WORD) Equipment Room Layout (JPEG, PDF) (site name should be mentioned in each layout) a) b) c) d) e) f) g)
7. 8. 9. 10. 11. 12.
Building Location Number of Floors Type of rooms/flats on each floor Number of Lifts Lift coverage
Detailed layout including all requirements from Etisalat As per agreed location in the branch survey All equipment locations – BTS, Rectifier, BBU & RRU BTS (H x W x D) - 2000mm x 600mm x 450mm APM (H x W x D) - 700mm x 600mm x 480mm RRU (H x W x D) - 485mm x 285mm x 250mm RECTIFIER (H x W x D) - 2000mm x 600mm x 600mm
a) Label all buildings in case of mix-use developments b) Longitude & latitude 13. Design Files (Workspaces) a) Logfiles for existing and simulation tests (TEMS 9) (properly named – site name floor #) b) Antenna Locations & Equipment Locations (Micrografix (DSF files), CAD, MS Word) c) Schematic Diagrams (Micrografix, CAD) d) Simulation Plots/Prediction Plots (MS PPT, JPEG, EIRP should be mentioned at each test point) 14. Design Reports (MS Word)
5.2
Building Owner/Consultant
d) Advance Copy of Customer Document Only – For them to arrange in advance all Etisalat requirements.
