diff --git a/python/demapping/gsm_bcch_ccch_sdcch4_demapper.py b/python/demapping/gsm_bcch_ccch_sdcch4_demapper.py
index 7b6a04d..bff67a4 100644
--- a/python/demapping/gsm_bcch_ccch_sdcch4_demapper.py
+++ b/python/demapping/gsm_bcch_ccch_sdcch4_demapper.py
@@ -51,7 +51,161 @@
         ##################################################
         # Blocks
         ##################################################
-        self.gsm_universal_ctrl_chans_demapper_0 = grgsm.universal_ctrl_chans_demapper(timeslot_nr, ([0,0,2,2,2,2,6,6,6,6,0,0,12,12,12,12,16,16,16,16,0,0,22,22,22,22,26,26,26,26,0,0,32,32,32,32,36,36,36,36,0,0,42,42,42,42,46,46,46,46,0]), ([0,0,1,1,1,1,2,2,2,2,0,0,2,2,2,2,2,2,2,2,0,0,7,7,7,7,7,7,7,7,0,0,7,7,7,7,7,7,7,7,0,0,135,135,135,135,135,135,135,135,0]), ([0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,0,0,0,0,0,0,1,1,1,1,0,0,2,2,2,2,3,3,3,3,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,0,0,0,0,0,0,1,1,1,1,0,0,2,2,2,2,3,3,3,3,0,0,2,2,2,2,3,3,3,3,0]), ([0,0,0,0,0,0,6,6,6,6,10,10,10,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,37,37,37,37,41,41,41,41,0,0,47,47,47,47]), ([7,7,7,7,0,0,135,135,135,135,135,135,135,135,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,7,7,7,7,7,7,7,0,0,7,7,7,7]), ([0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,0,0,3,3,3,3,0,0,0,0,0,0,2,2,2,2,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,0,0,3,3,3,3]))
+
+        # 3GPP TS 45.002 version 15.1.0 Release 15
+        # Table 3 : Mapping of logical channels onto physical channels (see subclauses 6.3, 6.4, 6.5)
+        #
+        # BCCH Norm D 0,2,4,6 C0 NB 51 B(2..5)
+        # SDCCH/4 0 D 0 C0 NB1 51 B(22..25)
+        #           U B(37..40)
+        #         1 D B(26..29)
+        #           U B(41..44)
+        #         2 D B(32..35)
+        #           U B(47..50)
+        #         3 D B(36..39)
+        #           U B(0..3)
+        # SACCH/C4 0 D 0 C0 NB3 102 B(42..45)
+        #            U B(57..60)
+        #          1 D B(46..49)
+        #            U B(61..64)
+        #          2 D B(93..96)
+        #            U B(6..9)
+        #          3 D B(97..100)
+        #            U B(10..13)
+        #
+        # Figure 8b: TDMA frame mapping for FCCH + SCH + BCCH + CCCH + SDCCH/4(0...3) + SACCH/4(0...3)
+        #
+        self.gsm_universal_ctrl_chans_demapper_0 = grgsm.universal_ctrl_chans_demapper(
+                timeslot_nr, ([ #downlink
+                    0,0,
+                    2,2,2,2,
+                    6,6,6,6,
+                    0,0,
+                    12,12,12,12,
+                    16,16,16,16,
+                    0,0,
+                    22,22,22,22,
+                    26,26,26,26,
+                    0,0,
+                    32,32,32,32,
+                    36,36,36,36,
+                    0,0,
+                    42,42,42,42,
+                    46,46,46,46,
+                    0,
+                ]), ([
+                    0,0,
+                    1,1,1,1,
+                    2,2,2,2,
+                    0,0,
+                    2,2,2,2,
+                    2,2,2,2,
+                    0,0,
+                    7,7,7,7,
+                    7,7,7,7,
+                    0,0,
+                    7,7,7,7,
+                    7,7,7,7,
+                    0,0,
+                    135,135,135,135,
+                    135,135,135,135,
+                    0,
+                ]), ([
+                    0,0,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,
+                    1,1,1,1,
+                    2,2,2,2,
+                    0,0,
+                    0,0,0,0,
+                    1,1,1,1,
+                    0,0,
+                    2,2,2,2,
+                    3,3,3,3,
+                    0,0,
+                    0,0,0,0,
+                    1,1,1,1,
+                    0,0,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,
+                    0,
+                    1,1,1,1,
+                    2,2,2,2,
+                    0,0,
+                    0,0,0,0,
+                    1,1,1,1,
+                    0,0,
+                    2,2,2,2,
+                    3,3,3,3,
+                    0,0,
+                    2,2,2,2,
+                    3,3,3,3,
+                    0,
+                ]), ([  #uplink
+                    0,0,0,0,
+                    4,5,
+                    6,6,6,6,
+                    10,10,10,10,
+                    14,15,16,17,
+                    18,19,20,21,
+                    22,23,24,25,
+                    26,27,28,29,
+                    30,31,32,33,
+                    34,35,36,
+                    37,37,37,37,
+                    41,41,41,41,
+                    45,46,
+                    47,47,47,47,
+                ]), ([
+                    7,7,7,7,
+                    3,3,
+                    135,135,135,135,
+                    135,135,135,135,
+                    3,3,3,3,
+                    3,3,3,3,
+                    3,3,3,3,
+                    3,3,3,3,
+                    3,3,3,3,
+                    3,3,
+                    3,
+                    7,7,7,7,
+                    7,7,7,7,
+                    3,3,
+                    7,7,7,7,
+                ]), ([
+                    3,3,3,3,
+                    0,0,
+                    2,2,2,2,
+                    3,3,3,3,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,
+                    0,
+                    0,0,0,0,
+                    1,1,1,1,
+                    0,0,
+                    2,2,2,2,
+                    3,3,3,3,
+                    0,0,
+                    0,0,0,0,
+                    1,1,1,1,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,0,0,
+                    0,0,
+                    0,
+                    0,0,0,0,
+                    1,1,1,1,
+                    0,0,
+                    2,2,2,2,
+                ]))
 
         ##################################################
         # Connections