9.8 UL C/I calculation

The C/I calculation in UL is calculated so that C(j,k) is the received power from the UE j,k at the j -th BS . 
 

  (Eq. 54) 
 where P t is the transmit power of the UE in dBm (see UL Power control below) and effective_pathloss is defined as in Section ‎7.6.1.. 
 The total interference to a  UL cellular system is derived from 
  (Eq. 55) 
 where 
 
 
 I inter is the interference coming from UEs of the same system but from adjacent cells, i.e. the inter-system interference from other cells. Since a fully orthogonal system is assumed, only UEs  which transmit in the same frequency subcarriers will introduce interference to each other, hence only UEs in other cells with the same k index are considered; 
 
 
 I ext (j,k) is the interference from external interfering system(s) in adjacent channel; 
 
 
 N is the noise floor. 
 
 
 

 
  (Eq. 56) 
 

 
  (Eq. 57) 
   
 I ext (j,k) is the interference to the the victim BS j from N interfering link transmitters (ILT), where 
   
  (Eq. 58) 
 for each of the victim  BS j ’s frequency where the UL information is received. The ILT can be any generic systems or a BS /UEs of a cellular system. 
 

 
   (Eq. 59) 
   
 at the victim system frequency. Where N RB is the number of RBs (i.e. subcarriers) requested per UE , and M is the maximum number of RBs per BS . 
   
 (Eq. 60) 
   
 where NoiseFigure BS is the noise figure of a BS .