Mobile Networks

state of the art radio network planning
and optimization for mobile networks

ICS telecom EV is the first mobile network planning solution that combines mobile network planning and optimization functions. These advanced mobile features include:

  • Link budget calculations
  • Coverage planning (RSRP, 2D/3D)
  • Interference calculations (RSRQ, SINR)
  • Capacity planning (DL/UL throughput)
  • Traffic analysis
  • PCI planning
  • RSI/PRACH planning
  • Automated handover, neighbor list planning and analysis – intra/inter RAT
  • Monte Carlo simulations
  • Automated site planning
  • Automated site optimization
  • Automated frequency planning
  • Re-farming frequency bands and inter-system coexistence
  • Transport (MW) planning

ICS telecom EV is a multi-technology tool capable of planing GSM, UMTS, LTE, WiFi for coverage, capacity, site parameters and neighbor relations planning and optimization.

With a host of universal main functions, ICS telecom EV is applicable to all technologies. The propagation models used by the sofwtare support coverage with a high level of accuracy with or without the automatic digital map tuning module.

In addition, the calibration stage can be managed to improve the final AFP result when drive-test measurement files are available.

Prospective Planning: Finding the best candidates and optimizing the network

Challenge

The main challenge with mobile network design is the ability to determine the number of sites and site locations required to achieve the target coverage and throughput. In practice, during an LTE deployment, most of the site candidates are selected from a list of already applicable sites (2G or 3G existing sites). The role of the RF planner will consist of finding the best candidates and optimize the network, adding new macro or micro/indoor sites.

Solution

ICS telecom EV’s features a ‘prospective planning’ function which identifies the best locations for new sites for greenfield and densification scenarios. This function is based on coverage target assumptions. The ‘parenting LTE’ function is based on a population of LTE users with profiles and defined traffic demands. This resolves the problems associated with traffic network congestion (or low traffic QoS performance), by adding new sites in the hot-spot areas. This function takes into account DL/UL coverage criteria and traffic assumptions.

The ‘automatic search site’ function automatically generates the LTE network design, taking into consideration the required criteria based on the RSRP threshold.

ATDI: Network planning made easy

Automatic optimization features to increase network coverage and capacity

Challenge

During network planning, it is necessary to optimize the physical (antenna tilts and azimuths) and logical parameters (Tx power) to improve the coverage and the quality of the network. After the launch, when networks are constantly changing due to fluctuating traffic conditions and the addition of new sites, optimization is required to retain the high level of performance defined by KPIs.

Solution

ICS telecom EV offers several automatic optimization features for network parameters to increase coverage and capacity.

The function ‘station according to target coverage’ allows the user to select the sites required to achieve the coverage target by clutter types. This helps the user reduce the number of sites required. The function ‘select station according to surface covered by station’ allows the user to select the sites for a coverage target (surface per km²) required by station. Similarly, the ‘route planning’ function is dedicated to roads, highway, railway environments and is used to automatically determinate the best sites and configuration to optimize the clutter defined as a ‘vector’. Lastly, the ‘station optimizing’ function allows the user to pre-define a set of parameters (tilt°, Antenna height, azimuth) to improve the station coverage.

ATDI: Ensuring networks run at full capacity

The advanced ‘Neighbor calculation’ function

Challenge

The isolation between cells which are assigned the same physical layer cell ID should be sufficient to ensure that UE never simultaneously receives the same identity from more than one single cell. PCI collision could potentially lead to handover failures and dropped calls. Neighbor cells with the same root sequences could interfere with each other and cause unnecessary PDCCH and PUSCH resource reservations. To minimize intra-cell interference in terms of cell range, the planner should apply this process: the smaller the cell size, the larger the number of orthogonal signatures and improved detection performance.

Solution

The advanced ‘neighbor calculation’ function allows the user to perform the intra- and inter-frequency neighbor lists based on coverage predictions from each cell. This is required to plan the PCI/RSI allocations. ICS telecom EV features ‘RSI Root Sequence Index allocation’ which retains the actual cell size, thereby avoiding the risk of collisions between the neighbor cells.

ATDI: Networks available anywhere – anytime

The ‘Parenting LTE’ function

Challenge

When planning small cells, consideration should be given to the choice of locations for sites with maximum demand and traffic, which subsequently will provide the best return on investment. The majority of site candidates are selected from a list of known sites such as bus stops, lamp posts, etc. Similarly, appropriate backhaul links for each site should be created in this manner.

Solution

The ‘parenting LTE’ function is based on a population of LTE users with profiles and defined-traffic demands. This function manages network traffic congestion (or low traffic QoS performance), by adding new sites in the hot-spot area. This function takes into account DL/UL coverage criterions and traffic assumptions.

ATDI: Connecting the network