GSM_Channel.c File Reference

#include "main.h"
#include "GSM.h"
#include "Cellular.h"

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Functions
int	fn_NetSim_FormGSMChannel (DEVVAR_MSC *mscVar)
int	isCellularChannelAllocated (NETSIM_ID nMSId, NETSIM_ID nInterfaceId, NETSIM_ID nApplicationId)

Function Documentation

fn_NetSim_FormGSMChannel()

int fn_NetSim_FormGSMChannel

(

DEVVAR_MSC *

mscVar

)

 This function is called from init block for allocating the channel to each BTS if the          
 user choice is FCA (Fixed Carreir allocation).                                             
 This function first calculate the bandwidth allocated for the GSM                              
    Bandwidth = Maximum frequency - Minimum frequency;                                          
                                                                                                
 After that, calculate the total no of the channel.                                         
    Total no of channel = Bandwidth * 8 * (1000/200); // KHz to MHz.                            
                                                                                                
 Calculate no of channel per BTS.                                                               
    no of channel per BTS = (Total no of channel/no of BTS).                                    
                                                                                                
 Initiallize the channel list.                                                                  
 Allocate channel to the BTS.                                                                   
 Set, no of busy channel = 0;                                                                   
 set, no of free channel = No of channel per BTS.                                               
 set, Total no of channel = No of channel per BTS.                                              
                                                                                                
 NOTE: In netSim we have only two type of channel:                                              
            1. Random Access Channel (RACH) First channel of each BTS.                          
            2. Traffic Channel.                                                                 
                                                                                                
------------------------------ Input parameters -----------------------------------------------
                                                                                                
 This function takes three parameters as input,                                             
    1. Minimum value of down link frequency                                                     
    2. Maximum value of up link frequency.                                                      
    3. No of BTS.                                                                               
    All these parameters are user input.                                                        
                                                                                                
------------------------------ Output Parameters ----------------------------------------------
                                                                                                
 This function return 1 on successfull completion                                               

Definition at line 53 of file GSM_Channel.c.

isCellularChannelAllocated()

int isCellularChannelAllocated	(	NETSIM_ID	nMSId,
		NETSIM_ID	nInterfaceId,
		NETSIM_ID	nApplicationId
	)

This function is used to check whether cellular channel is allocated or not

Definition at line 129 of file GSM_Channel.c.

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