The ultimate goal of a RF site survey by TCG is to acquire ample information to determine the number and placement of access points that allows optimal coverage throughout the facility.
RF site survey is carried out in the following steps:
- Collect list of Nominals to be surveyed, from the customer. In case of new town surveys where Nominals are not provided, TCG will survey the town and provide a nominal for suitable site location based on the target coverage.
- Create a suitable template/use the survey report template forwarded by the customer.
- Identify physical location of the proposed nominal and locate 3 candidates (maximum) for each nominal, as per search ring size suggested by the customer.
- Survey the site for RF suitability.
- Record Latitude and Longitude, building height etc. of the proposed candidates.
- Estimate and provide required GSM Antenna heights and orientation, proposed tower / pole location (s) will also be marked on a rough sketch of the building (rooftop) or ground site (for each candidate).
- Take site photographs (360 degrees panoramic view and building / site elevation) for each candidate as given in the survey template by you
- Record physical addresses of the candidates and site owner / manager contact details (where available).
- Complete the Site Survey Candidate evaluation report.
To achieve targeted KPI involves
- Study QOS of all existing sites/Network through provided data and inputs collected from Drive Test & Survey for BTSs.
- Submission of recommendations BTSs wise /Cluster wise for both Software (RF Data ) as well as Hardware ( Addition of new site , Change of Antenna height, Orientation/Tilt, Change of feeder cable height & AMF .) to achieve the targeted KPI as fixed by Customer.
- Implementation of recommendations after getting approval from Customer.
- Study & analysis of cluster performance for the achievement of targeted KPI.
- Acceptance testing of the optimized Cluster/Network by the Customer.
- Maintenance of target KPI.
- Power calibration of BTS
- VSWR measurement of BTS
- Down tilting of antenna
- Changing antenna height
- Redefining neighbors list
- Adjusting BTS output power
- Adjusting Handover parameters
- RF parameter changes
- Reworking BCCH/TCH planning
- Redefining handover parameters
- Redefining of reselection parameters
- Interference due to other operator’s sites as well inter/intra cell need to be identified and remedial action taken.