The RNC identifier is the first 2 bytes of the 4-byte cell identifier (3GPP 25.401, Section 6.1.5) if the network type is UMTS / HSxPA / HSPA +. “
I have access to the operator’s network and I checked in the system, and this is true and correct.
Based on this, please see my code, how you can easily get RNCID + CID:
Converting CID to ByteArray:
public static byte[] convertByteArray__p(int p_int){
byte[] l_byte_array = new byte[4];
int MASK_c = 0xFF;
for (short i=0; i<=3; i++){
l_byte_array[i] = (byte) ((p_int >> (8*i)) & MASK_c);
}
return l_byte_array;
}
RNCID CID:
public int getRNCID_or_CID__p(byte[] p_bytes, short p_which){
int MASK_c = 0xFF;
int l_result = 0;
if (p_which == Constants.CID_C) {
l_result = p_bytes[0] & MASK_c ;
l_result = l_result + ((p_bytes[1] & MASK_c ) << 8);
} else if (p_which == Constants.RNCID_C){
l_result = p_bytes[2] & MASK_c ;
l_result = l_result + ((p_bytes[3] & MASK_c ) << 8);
} else {
g_FileHandler.putLog__p('E', "getRNCID_or_CID__p invalid parameter");
}
return l_result;
}
:
byte[] l_byte_array = new byte[4];
l_byte_array = convertByteArray__p(l_cid);
int l_RNC_ID = getRNCID_or_CID__p(l_byte_array,Constants.RNCID_C);
int l_real_CID = getRNCID_or_CID__p(l_byte_array,Constants.CID_C);
RNCID_C (1) CID_C (2) , , .