Lte Coverage and Capacity DimensioningDescription complète
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Ericsson DUW Capacity DimensioningDescrição completa
LTE Radio Network Planning Introduction V1.0
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information regarding different procedures ofn coreFull description
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
Basically LTE capacity dimensioning dimensioning includes two parts which are capacity dimensioning dimensioning for single site and total network throughput calculation.
Capacity dimensioning for single site is performed based on some dimensioning parameters such as duplex mode, system bandwidth and etc.
Total traffic volume calculation is performed based on service model and traffic model. Firstly the single user throughput is calculated. Then the total network throughput is output.
The Number of eNodeB by capacity is the result that the the total traffic volume is divided by the single site capacity.
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
By simulation SINR can be mapped to MCS. A certain MCS MCS corresponds to a certain certain throughput. So finally cell average throughput can be obtained by SINR distribution.
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
Based on service model and traffic model, the single single user network throughput can be calculated. Then the total network throughput can be obtained by multiplexing the number of subscribers with the single user throughput.
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LTE Radio Network Capacity Dimensioning
Service model describe the service pattern which includes includes some typical parameters for different service types.
Parameters in service model:
Session Time : the duration of each PPP session
Session Duty Ratio: the data transmission transmission ratio of each each PPP session
BLER: Block Error Rate
Bearer Rate : the service application layer(IP) bearer rate
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LTE Radio Network Capacity Dimensioning
Traffic model describes the UE behaviors.
Parameters in traffic model:
Penetration Ratio: proportion of service type
BHSA: busy hour session attempts for single user
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LTE Radio Network Capacity Dimensioning
Single User Throughput can be calculated based on traffic model and service model. Basically it is the sum of throughput of different service types for one subscriber.
For PS service some margin should be reserved for bu rst traffic. So the parameter Peak to Average Ratio is used in the formula.
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
The result is based on the example of traffic model.
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
The throughput in IP layer and MAC layer are different. For the same same traffic data flow the the throughput in MAC is greater than that in IP layer because PDCP header/RLC header/MAC header are added. The relative efficiency is related to the packet size. In the table a packet size with 300 bytes is used as example.
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
U-NET can simulate the throughput of the MAC layer and the application layer and the throughput of each service on the basis of sites and cells.
U-NET can also simulate the following counters:
Actual transmit power
Uplink IoT
Actual uplink load
Number of uplink RBs in use
Number of downlink RBs in use
Uplink/downlink service rate of the MAC layer
Uplink/downlink service rate of the application layer
Number of subscribers in each state
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LTE Radio Network Capacity Dimensioning
CDF: Cumulative Distribution Function
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LTE Radio Network Capacity Dimensioning
PDF: Probability Distribution Function
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
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LTE Radio Network Capacity Dimensioning
U-NET can simulate the throughput throughput change.
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LTE Radio Network Capacity Dimensioning
U-NET can simulate the different UE states such such as No Access, Access, Offline, Offline, Uplink No Cover , Downlink No Cover and etc.
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LTE Radio Network Capacity Dimensioning
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