Hi Manoj,
VSWR stands for Voltage Standing Wave Ratio,…..It is directly propotional to the wave guide(RF feeder) for operation of the BTS your VSWR should not exceed the limits 2.2< VSWR class1.
a Benchmarking is a comparison between “compareable” services or products belonging to different companies.
For instance: benchmark of the service coverage of three operators = identical drive-tests with three mobiles, each containing a SIM card of one of the operator.
benchmark of MSCs from Nokia, Alcatel, Ericsson = same series of tests for each MSC, in order to compare their functions, etc…