In India, networks have achieved Erlangs per MHz per Sq. kms of 100 over an 

area of 25 Sq kms. 

This however, does not take into account the capacity requirement arising 

from data services. 

3.2.2.8 

International Practices on CDMA 2000 1x network 

International practices on the packing density of CDMA sites suggest the 

following benchmarks: 

1) 

A  

2.3 sites per Sq.Kms 

2) 

B  

2.2 sites per Sq.Kms 

3) 

C 

2.9 3 sites per Sq.Kms 

This translates to 

Networks 

No. of sites per Erlang per Sq. Km per MHz 

Sq.Kms 

with 80% loading 

A 2.3 

92 

B 2.2 

88 

C 3 

120 

Maximum 5 

200 

3.2.2.9 Capacity enhancement techniques for CDMA 2000 1x 

If there is a significant demand for multimedia services, increased data rates 

and therefore system capacity it would be possible to deploy 1xEV DO in one 

of the 1.25 MHz channels.  1xEV DO is an integral part of the family of CDMA 

2000 standards and is optimised for high speed data transmissions. 

Commercial deployment of these systems began in 2002. 

The use of data compression and also smart antennas may also increase the 

spectrum utilisation. 

3.2.3  Options for defining technical efficiency 

From the discussions above, a combination of the following parameters can 

be used to quantify efficiency for a particular quality of service. These include 

a)  Erlangs per MHz per Sq. Kms over an area. One could also consider 

specifying efficiencies at different reuse levels for two areas say reuse 

9 for 25 Sq Kms and reuse 3 for an area of say 5 Sq. kms 

b)  Average antenna height / power 

c)  Percentage of area covered by micro cells (in case of GSM) 

d) Packing density 

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