MULTIPLE USE PATT FOR FREQUENCY PLANNING IN GS
Stefan Engstrom, Thomas Johansson, Fredric Kronestedt, Magnus Larsson, Stefan Lidbrink · 2004
Providing high capacity in GSM networks at low costs using existing macrocells is of increasing importance in the near future due to the competition between operators. This paper shows that by applying frequency hopping in combination with an advanced frequency planning method, Multiple Reuse Patterns (MRP), very high traffic levels in the existing macro- cells can be supported. Field experience from live networks shows that an average frequency reuse factor as low as 7.5 is pos- sible without negatively affecting the network quality. Thus, the network capacity can be doubled compared to a non hopping network with reuse 4/12 using 10 MHz frequency spectrum. In a macrocell, it is possible to carry as much as 43 Erlang at 2% blocking.