nal-to-noise ratio). Es/No is the ratio of energy-per-symbol to noise. For a GPRS system (with GMSK modulation) this ratio is unity, while for EDGE systems (8-PSK modulation) it is Eb/No + 4.77 dB (as three bits is one symbol). C/N is EDGE: NETWORK PLANNING AND OPTIMISATION the ratio of total received power to total noise. The following are useful relationships: Eb/No(dB) =Es/No -4.77 = (6.1) C/N(dB) = Eb/No 6.07. (6.2) Link budget calculations can be done by using MCS and BLER. However, received signal strength can be calculated for some specified data rates as well. Es/No can be used for throughput (per time slot) calculations in a cell. As seen in earlier chapters, the received signal strength is dependent upon the transmitted signal strength, losses, antenna heights and gains (TX and RX) and distance travelled by the signal. Loss in the signal strength gives the cell range. Thus, relationship between energy-per-symbol limited by noise can be plotted with respect to the cell range. Link level simulations with the above calculations can give the throughput per time slot for each coding scheme. Capacity Planning Capacity planning for EDGE networks is quite similar to that for GPRS networks, but the increase in throughput per radio time slot in EDGE changes some aspects of the planning. A brief overview of these concepts and their effects on throughput per radio time slot is given below. The territory aspects explained in Chapter 5 (i.e. dedicated, default, CSW, etc.) stand the same for EDGE networks. Dedicated territory is specifically for PS traffic, CSW territory for CS traffic; default territory can be used for PS traffic if the CS traffic is not using it (CS traffic has a priority over PS traffic for default territory). The number of time slots that are assigned in each of these territories can be changed dynamically based on the load conditions. The concept of frequency re-use is similar to that of GSM/GPRS radio networks. The re-use pattern defines the number of cells that can be used within a cluster in a