Date post: | 02-Jun-2018 |
Category: |
Documents |
Upload: | yousuf-shaikh |
View: | 219 times |
Download: | 0 times |
of 27
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
1/27
1 NSN Siemens Networks RN31545EN10GLA0
For internal use
Radio network planning process3GRPESSModule 4
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
2/27
2 NSN Siemens Networks RN31545EN10GLA0
For internal use
Module 4Radio network planning process
Objectives
After this module the participant shall be able to:-
Understand radio network planning process
Understand main steps in dimensioning process
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
3/27
3 NSN Siemens Networks RN31545EN10GLA0
For internal use
Module Contents
Radio network planning process
Radio network dimensioning process
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
4/27
4 NSN Siemens Networks RN31545EN10GLA0
For internal use
Module Contents
Radio network planning process
Radio network dimensioning process
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
5/27
5 NSN Siemens Networks RN31545EN10GLA0
For internal use
Radio network planning phases
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
6/27
6 NSN Siemens Networks RN31545EN10GLA0
For internal use
Site selection and planning
Practical site selection based on target site locations and available sites Site implementation plan
Actual site locations and implementation plans
Configuration Planning
Configuration planning is related to possible configurations as well as feature implementation Future configuration takes into account the possibility to expand
Coverage and Capacity Planning
Coverage and Capacity Planning is very much tied to Site selection and Configurationplanning
Coverage requirements needs to be met Capacity requirements estimated as well as future expansions needs to be noted
Parameter planning
Initial parameter configuration
Scrambling code plan, neighbour plan Detailed parameter planning Optimised/verified parameter plan
Radio network planning tasks
1
2
1
2
3
3
4
4
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
7/277 NSN Siemens Networks RN31545EN10GLA0
For internal use
Planning tasks and network
Pre-planning activities are high especially when operator is
Greenfield or deploying a new technology Main focus in existing operators are in coverage and capacity
as well as configuration planning
Optimisation is main task in overall network planning and it isalways recommended to be done and kept as a veryimportant task of network operation
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
8/278 NSN Siemens Networks RN31545EN10GLA0
For internal use
Overall Planning Process
The overall Planning Process can be described with thefollowing figure:
SystemDimensioning
Radio NetworkPlanning
Pre-launchOptimisation
Post-launchOptimisation
3G neighbour lists2G neighbour listsAntenna tiltsLocal areaparameter tuning
Site selectionSite design3G neighbour lists2G neighbour listsScrambling codesLocation areas
Routing areasRNC areas
Link budget analsysis
Node B count andconfiguration
RNC count andconfiguration
Transmissioncapacity and
configuration
RF carriersSectorisationROC to CECNode B powerBaseband proc.Transmission
HSDPAMicrocells
CapacityEvolution
Performance Monitoring
3G neighbour lists2G neighbour listsAntenna tiltsLocal areaparameter tuningAdditional sites
User experienceoptimisation
Wide area parameter tuning
SystemDimensioning
Radio NetworkPlanning
Pre-launchOptimisation
Post-launchOptimisation
3G neighbour lists2G neighbour listsAntenna tiltsLocal areaparameter tuning
Site selectionSite design3G neighbour lists2G neighbour listsScrambling codesLocation areas
Routing areasURA areas
Link budget analsysis
Node B count andconfiguration
Adapter count andconfiguration
Transmissioncapacity and
configuration
RF carriersSectorisationSystem modulesNode B powerBaseband proc.Transmission
HSPA featuresMicrocells
CapacityEvolution
Performance Monitoring
3G neighbour lists2G neighbour listsAntenna tiltsLocal areaparameter tuningAdditional sites
User experienceoptimisation
Wide area parameter tuning
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
9/279 NSN Siemens Networks RN31545EN10GLA0
For internal use
1. Make sure that there is enough coverage
Low drop call rate with good quality2. Put sites close to the users
No blocking if all cells collect some traffic
low Interference if UEs are near to the cell
3. Avoid unnecessary overlapping between the cells low interference level
High throughput for PS data
Low Soft handover overhead
Wall installation Pole installation Pile/Floor installation
Multimode NSN UltraSiteEDGE BTS & 19 rack Installation
Faster, more
economic Site
Acquisition &
rollout with
Flexi BTS
Radio Planning Principlesmuch easier with Flexi
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
10/2710 NSN Siemens Networks RN31545EN10GLA0
For internal use
Module Contents
Radio network planning process
Radio network dimensioning process Dimensioning process
DCH traffic dimensioning
DCH + HSDPA traffic dimensioning
DCH + HSPA traffic dimensioning
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
11/2711 NSN Siemens Networks RN31545EN10GLA0
For internal use
Radio dimensioning processBasics
Dimensioning process can be split in high level steps:
Input data Cell Plan Network PlanUTRAN Final Network
Input data has big influence on whole result Cell Planning needs to follow customer input and system performance
Network plan needs to follow customer requirements and also detailedmapping to planned network conditions
Final Network is the result from the iterative analysis of inputs,performance values and also area and requirement mapping
InputData
CellPlan
FixedNetwork
Plan-UTRAN
FinalNetwork
UTRAN
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
12/2712 NSN Siemens Networks RN31545EN10GLA0
For internal use
Input Data
Input data includes for example Traffic model and capacity requirements
Coverage Requirements
Quality Requirements
Similarly customer might have special requirements (e.g.road, train coverage)
When number of sites is fixed the traffic model,capacity/coverage and quality requirements are not as aninput More as an output of estimation (i.e. what can be achieved with X
number of sites)
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
13/27
13 NSN Siemens Networks RN31545EN10GLA0
For internal use
Cell Plan
Cell Planning includes offered traffic and its distribution
link budgetcoverage maximum air interface capacity
Node B hardware configuration
Cell coverage is depended: Frequencies
System performance Antennas
Environment characteristics
Cell capacity is depended: Traffic model
Frequencies Selected features
HW configurations is depended: Cell coverage, sectorisation, # of carriers
Selected features and capacityrequirements
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
14/27
14 NSN Siemens Networks RN31545EN10GLA0
For internal use
Basic information needed for dimensioning
frequency (e.g. 2100, 1900, 850)
Clutter type, in clutter type you can define four clutter types (e.g. dense urban, urban, suburban, rural). Subscribers, the amount of subscribers in the area is typed over here
Total area to be covered, the total area size in sqkm which is needed to cover.
Traffic profile and volumes can be defined per clutter
User equipment information
UE type
Influences on transmit power (dBm) and possible antenna gain (dB) Body loss, commonly for voice
Node B information
Node B type Influences on noise figure
Antenna and antenna gains
cable loss UL/DL (MHA usage)
# of carriers, # of sectors
Node B output power (40W/20W)
HSPA information
HSDPA associated Uplink RB
HSDPA scheduler type (e.g. shared or cell specific)
Scheduling type (e.g. Round Robin or Proportional Fair scheduling)
Number of codes, 5/10/15 Number of HSUPA users and L1 throughput
Received pilot power= Pilot t ransmit powerAntenna line losses+Antenna gain- (Max. pat hloss Planning margins)
Antenna gain
Antenna line losses
Pilot transmit power
Max.p
athloss
-marg
ins
CPICH EIRP
Antenna gain
MHA usage
Frequency
Noise Figure
Output power# of carriers
Feeder losses
# of sectors
Noise Figure
Transmit power
Antenna gain
Body Loss
Path loss and margins
cell range calculation
Cell Plan and Example inputs for coverage,capacity and HW
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
15/27
15 NSN Siemens Networks RN31545EN10GLA0
For internal use
Cell Plan and Example inputs for coverage, capacity and HW
Link budget gains and margins per clutter (e.g. Urban, suburban and rural)
Antenna height BS Antenna height MS
Location probability, Indoor location probability, for example 95%. Building penetration loss Standard deviationArea and capacity factors
Coverage limiting service, UL DPCH (16/64/128/384), HSDPA (cell edge throughput) orHSUPA (cell edge throughput).
Planned load
NRT 64/384 planning margin effect on Coverage Area
(stepped +/- 1dB)
-80%
-60%
-40%
-20%
0%20%
40%
60%
80%
100%
120%
-6 -4 -2 0 2 4 6
Change of parameter
Effectin
Co
verageArea
Building penetration loss change (ref = 16dB)
Indoor standard deviation change (ref = 12dB)
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
16/27
16 NSN Siemens Networks RN31545EN10GLA0
For internal use
UTRA Network Plan Final network
Based on cell plan
Including traffic modeling
Noticing also environmentcharacteristics and specialrequirements
Main inputs:Area size
Number of sites, and configurations
Detailed access interface
configuration and connections
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
17/27
17 NSN Siemens Networks RN31545EN10GLA0
For internal use
-Outputto
ward
Accessplanning
Per area and per Phase
Number of Node Bs
Node B Type
Node B Configuration
Node B Upgrade
Configuration
NodeB
Dimensioning
CHC, DRIC, FSM)
Radio Dimensioning data flow
Customer
Requirements
LINK BUDGET
Rel99, CPICH,
HSDPA, HSUPA
RF Planning
Parameters
interf marg
HO gain
environment
etc.
System
Parameters
Eb/No
TX power
etc.
Infrastr.
Parameters
# of sectors
antennas
req cov area
etc.
Capacity
Air Interface
Dimensioning
(Capacity: Rel99
+ HSPA )
Traffic
Demand
per bearer
# of subs
GoS
etc.
System
Parameters
spectral
efficiency
etc.
Outputs
Customer Requirements and Input Parameters
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
18/27
18 NSN Siemens Networks RN31545EN10GLA0
For internal use
Capacity for:
DCH services
VoIP
HSDPA HSUPA
Service (e.g.DCH)
impact on other
services (e.g.HSPA)
Spreading Codecapacity
Coverage and capacity dimensioning
Dimensioning process has two main parts:
Coverage dimensioning which is handled mainly in Link Budget Capacity dimensioning
Mainly calculation are for shared DCH + HSPA carrier, but more and morefocusing also on dedicated carriers and multi-carriers
Link budget and Capacity dimensioning are connected to each other in
order to model coverage and capacity iteration and impact on both parts
Coverage
dimensioning
Capacity
dimensioning
CapacityLink budget
Coverage based on:
DCH services
HSDPA
HSUPA
VoIP
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
19/27
19 NSN Siemens Networks RN31545EN10GLA0
For internal use
Module Contents
Radio network planning process
Radio network dimensioning process Dimensioning process
DCH traffic dimensioning
DCH + HSDPA traffic dimensioning
DCH + HSPA traffic dimensioning
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
20/27
20 NSN Siemens Networks RN31545EN10GLA0
For internal use
Dimensioning in case of Rel99 traffic only
Link Budget calculation for DCH channels
For bearers for which coverage is requested Using default or project specific parameters
Identification of the limiting bearer in UL and DL
The one with the smallest cell range
Optional: Calculation of CPICH Link Budget in relation with the limiting bearer
Usage of the Link Budget results to the Capacity dimensioning
How many sites available within certain loading assumptions
Capacity and equipment calculation
Coverage
dimensioning
Capacity
dimensioning
Coverage dimensioning selection:
Link Budget R99 (based on
service)
Output # of coverage sites RNC
Dimensioning
Iu-b
Dimensioning
CE Calculation
R99 capacity
DimensioningInput:
available
capacity
Output:
R99 UL/DL load
Resultevaluation
Additional
capacity Node Bs
Not
OK
OK
Air interface dimensioning, only DCH carrier
Coverage dimensioning Capacity dimensioning
Dimensioning inputs and requirements
# ofNode Bs
(coverage+capacity)
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
21/27
21 NSN Siemens Networks RN31545EN10GLA0
For internal use
Module Contents
Radio network planning process
Radio network dimensioning process Dimensioning process
DCH traffic dimensioning
DCH + HSDPA traffic dimensioning
DCH + HSPA traffic dimensioning
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
22/27
22 NSN Siemens Networks RN31545EN10GLA0
For internal use
Dimensioning in case of Rel99 and HSDPA traffic(1/2)
Link Budget calculation for: DCH Channels HSDPA cell edge throughput
Link Budget calculation for DCHchannels For bearers for which coverage is
requested
Using default or project specificparameters
HSDPA channel Link Budgetcalculation For throughput value at the cell edge
Cell edge condition is always worsethan inside the cell
Throughput is still limited by manyissues UE capability Features Interference Available power and code tree
Mean cell throughput
(1 transimttion upto 15 codes)
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
0,45 0,6 0,75 0,9 1,05 1,2 1,35antenna distance [km]
datarate[Mb/s]
cell edge
At cell edge ~350 kbps, macro cell
Many issues impactson inside cell throughput
Same distancecan mean
totally differentconditions
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
23/27
23 NSN Siemens Networks RN31545EN10GLA0
For internal use
Coverage
dimensioning
Capacity
dimensioning
Dimensioning in case of Rel99 and HSDPA traffic(2/2)
Identification of the limiting bearer in UL and DL (including HSDPA link)
The one with the smallest cell range Optional: Calculation of CPICH Link Budget in relation with the limiting bearer
Capacity and equipment calculation Among R99 limitation, where one is the total number of sites available
HSDPA capacity is also tied on signal condition, thus impacted by interference
HSDPA has commonly lower priority than R99 CS services, thus available conditionmight change
HSDPA features impact on capacity as well as needed amount of HW.
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
24/27
24 NSN Siemens Networks RN31545EN10GLA0
For internal use
Module Contents
Radio network planning process
Radio network dimensioning process Dimensioning process
DCH traffic dimensioning
DCH + HSDPA traffic dimensioning
DCH + HSPA traffic dimensioning
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
25/27
25 NSN Siemens Networks RN31545EN10GLA0
For internal use
Dimensioning in case of Rel99 and HSPA traffic(1/2) Link Budget calculation for DCH channels
For bearers for which coverage is requested
Using default or project specific parameters
HSDPA channel Link Budget calculation For throughput value at the cell edge (the same as for Rel99 and HSDPA Traffic) Using default or project specific parameters
HSUPA channel Link Budget calculation
For throughput value at the cell edge Using default or project specific parameters
Coverage dimensioning selection:
Link Budget R99 (based on
service)Link Budget HSDPA (based on
cell edge throughput)
Link Budget HSUPA (based on
cell edge throughput)
Output # of coverage sites
HSDPA
capacity
dimensioning
RNC
Dimensioning
Iu-b
Dimensioning
CE Calculation
HSUPA
capacity
dimensioning
R99 capacity
Dimensioning
UL/DL Load
Resultevaluation
Additional
capacity Node Bs
Not OK
O
K
Air interface dimensioning, shared carrier DCH + HSPA
Coverage dimensioning Capacity dimensioning
Dimensioning inputs and requirements
# ofNode Bs
(coverage+capacity)
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
26/27
26 NSN Siemens Networks RN31545EN10GLA0
For internal use
Coverage
dimensioning
Capacity
dimensioning
Dimensioning in case of Rel99 and HSPA traffic(2/2)
Identification of the limiting bearer in UL (including HSUPA
link) and DL (including HSDPA link) The one with the smallest cell range
HSUPA brings somewhat new challenges on dimensioning HSUPA is sharing capacity between other UL services
HSUPA equipment dimensioning differs from R99 and HSDPA When network HSPA services are increasing commonly
additional carrier is needed to support higher demand ofHSPA.
8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process
27/27
27 NSN Si N t k RN31545EN10GLA0
For internal use
Module 4Radio network planning process
Summary
Planning process can be divided to three main phases
Pre-planning
Detailed planning
Optimisation
Successful dimensioning depends on sufficient and
accurate input data
Even best dimensioning results provides only an estimate