Step
|
Direction
|
Message
|
Memo
|
1 |
UE <--- SS |
MIB |
|
2 |
UE <--- SS |
SIB1 |
|
3 |
UE <--- SS |
SIB2,3 and others |
|
4 |
UE ---> SS |
PRACH (RACH Preamble)-Msg1
|
|
5 |
< NW >
|
PHY_PRACH_IND |
|
6 |
< NW >
|
MAC_DATA_IND |
|
7 |
UE <--- SS |
RACH Response - Msg2
|
|
8 |
< NW >
|
MAC_DATA_REQ |
|
9 |
< NW >
|
PHY_PRACH_REQ |
|
10 |
UE <--- SS |
DCI 1A |
To decode RAR in UE |
11 |
< NW >
|
PHY_PRACH_IND |
|
12 |
< NW >
|
MAC_DATA_IND |
|
13 |
< NW >
|
RLC_DATA_IND |
|
14 |
UE ---> SS |
RRC Connection Request - Msg3
|
|
15 |
< UE >
|
UE MAC start mac-ContentionResolutionTimer
|
3GPP 36.321 5.1.5
CR Timer value is set in SIB2
|
16 |
UE <--- SS |
ACK (PHICH) |
To confirm Msg3 Reception |
17 |
UE <--- SS |
DCI 1A or DCI1 |
To decode CR in UE |
18 |
UE <--- SS |
Contention Resolution - Msg4 |
SS must send CR before CRtimer get expired |
19 |
UE ---> SS |
HARQ ACK |
To Confirm CR Reception at PHY |
20 |
< UE >
|
UE MAC stop mac-ContentionResolutionTimer
|
|
21 |
< NW >
|
MAC_DATA_REQ |
|
22 |
< NW >
|
PHY_PRACH_REQ |
|
23 |
UE <--- SS |
DCI 1A |
To decode RRC Conn Setup in UE |
24 |
UE <--- SS |
RRC Connection Setup
|
In some case, this message gets piggybacked to step 18. |
25 |
< NW >
|
RLC_DATA_REQ |
RLC Carrying step 24 |
26 |
< NW >
|
MAC_DATA_REQ |
MAC Carrying step 24 |
27 |
UE <--- SS |
DCI 1A |
To decode RRC Conn Setup |
28 |
< NW >
|
PHY_DATA_REQ |
PHY Carrying step 24 |
29 |
UE ---> SS |
HARQ ACK |
Response to step 28 |
30 |
UE ---> SS |
Scheduling Request |
To send RLC ACK from UE |
31 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RLC ACK from UE |
32 |
< NW >
|
PHY_DATA_REQ |
|
33 |
< NW >
|
MAC_DATA_REQ |
|
34 |
UE <--- SS |
HARQ ACK (PHICH) |
|
35 |
UE ---> SS |
RLC ACK |
|
36 |
UE ---> SS |
Scheduling Request |
To send RRC Conn Setup Complete from UE |
37 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RRC Conn Setup Complete from UE |
38 |
< NW >
|
PHY_DATA_IND |
|
39 |
< NW >
|
MAC_DATA_IND |
|
40 |
< NW >
|
RLC_DATA_IND |
|
41 |
< NW >
|
PDCP_DATA_IND |
|
42 |
UE ---> SS |
RRC Connection Setup Complete
+ Attach Requeset
+ (PDN Conn Request)
|
|
43 |
UE <--- SS |
HARQ ACK (PHICH) |
|
44 |
UE <--- SS |
RLC ACK |
|
45 |
< NW >
|
MAC_DATA_REQ |
|
46 |
< NW >
|
PHY_DATA_REQ |
|
47 |
UE <--- SS |
DCI 1A |
To decode RLC ACK in UE |
48 |
UE <--- SS |
Authentication Request
|
|
49 |
< NW >
|
PDCP_DATA_REQ |
|
50 |
< NW >
|
RLC_DATA_REQ |
|
51 |
< NW >
|
MAC_DATA_REQ |
|
52 |
< NW >
|
PHY_DATA_REQ |
|
53 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To decode Authentication Request in UE |
54 |
UE ---> SS |
HARQ ACK |
|
55 |
UE ---> SS |
Scheduling Request |
To send RLC ACK from UE |
56 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RLC ACK from UE |
57 |
UE ---> SS |
RLC ACK |
|
58 |
UE <--- SS |
HARQ ACK (PHICH) |
|
59 |
< NW >
|
PHY_DATA_REQ |
|
60 |
< NW >
|
MAC_DATA_REQ |
|
61 |
UE ---> SS |
Scheduling Request |
|
62 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
|
63 |
< NW >
|
PHY_DATA_IND |
|
64 |
< NW >
|
MAC_DATA_IND |
|
65 |
< NW >
|
RLC_DATA_IND |
|
66 |
< NW >
|
PDCP_DATA_IND |
|
67 |
UE ---> SS |
Authentication Response
|
|
68 |
UE <--- SS |
HARQ ACK (PHICH) |
|
69 |
UE <--- SS |
RLC ACK |
|
70 |
< NW >
|
MAC_DATA_REQ |
|
71 |
< NW >
|
PHY_DATA_REQ |
|
72 |
UE <--- SS |
DCI 1A
|
To decode RLC ACK in UE |
73 |
UE <--- SS |
NAS Security Mode Command
|
|
74 |
< NW >
|
PDCP_DATA_REQ |
|
75 |
< NW >
|
RLC_DATA_REQ |
|
76 |
< NW >
|
MAC_DATA_REQ |
|
77 |
< NW >
|
PHY_DATA_REQ |
|
78 |
UE <--- SS |
DCI 1A |
To decode NAS Security Mode Command in UE |
79 |
UE ---> SS |
HARQ ACK |
|
80 |
UE ---> SS |
Scheduling Request(PUCCH) |
To send RLC ACK from UE |
81 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RLC ACK from UE |
82 |
< NW >
|
PHY_DATA_IND |
|
83 |
< NW >
|
MAC_DATA_IND |
|
84 |
UE ---> SS |
RLC ACK |
|
85 |
UE <--- SS |
HARQ ACK (PHICH) |
|
86 |
UE ---> SS |
Scheduling Request(PUCCH) |
To Send NAS Security Mode Complete |
87 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To Send NAS Security Mode Complete |
88 |
< NW >
|
PHY_DATA_IND |
|
89 |
< NW >
|
MAC_DATA_IND |
|
90 |
< NW >
|
RLC_DATA_IND |
|
91 |
< NW >
|
PDCP_DATA_IND |
|
92 |
UE ---> SS |
NAS Security Mode Complete
|
|
93 |
UE <--- SS |
HARQ ACK (PHICH) |
|
94 |
UE <--- SS |
RLC ACK |
|
95 |
< NW >
|
MAC_DATA_REQ |
|
96 |
< NW >
|
PHY_DATA_REQ |
|
97 |
UE <--- SS |
DCI 1A |
To decode RLC ACK in UE |
98 |
UE <--- SS |
RRC Security Mode Command
|
|
99 |
< NW >
|
PDCP_DATA_REQ |
|
100 |
< NW >
|
RLC_DATA_REQ |
|
101 |
< NW >
|
MAC_DATA_REQ |
|
102 |
< NW >
|
PHY_DATA_REQ |
|
103 |
UE <--- SS |
DCI 1A |
To decode RRC Security Mode Command in UE |
104 |
UE ---> SS |
HARQ ACK |
|
105 |
UE ---> SS |
Scheduling Request |
To send RLC ACK from UE |
106 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RLC ACK from UE |
107 |
< NW >
|
PHY_DATA_IND |
|
108 |
< NW >
|
MAC_DATA_IND |
|
109 |
UE ---> SS |
RLC ACK |
|
110 |
UE <--- SS |
HARQ ACK (PHICH) |
|
111 |
UE ---> SS |
Scheduling Request |
To send RRC Security Mode Complete from UE |
112 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RRC Security Mode Complete from UE |
113 |
< NW >
|
PHY_DATA_IND |
|
114 |
< NW >
|
MAC_DATA_IND |
|
115 |
< NW >
|
RLC_DATA_IND |
|
116 |
< NW >
|
PDCP_DATA_IND |
|
117 |
UE ---> SS |
RRC Security Mode Complete
|
|
118 |
UE <--- SS |
HARQ ACK (PHICH) |
|
119 |
UE <--- SS |
RLC ACK |
|
120 |
< NW >
|
MAC_DATA_REQ |
|
121 |
< NW >
|
PHY_DATA_REQ |
|
122 |
UE <--- SS |
DCI 1A |
To decode RLC ACK in UE |
123 |
|
< Many other message can be added here depending on NW > |
|
124
|
UE <--- SS |
RRC Connection Reconfiguration
+ Attach Accept
+ Activate Default EPS Bearer Context Request
|
|
125 |
< NW >
|
PDCP_DATA_REQ |
|
126 |
< NW >
|
RLC_DATA_REQ |
|
127 |
< NW >
|
MAC_DATA_REQ |
|
128 |
< NW >
|
PHY_DATA_REQ |
|
129 |
UE ---> SS |
HARQ ACK |
|
130 |
UE ---> SS |
Scheduling Request(PUCCH) |
To send RLC ACK from UE |
131 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RLC ACK from UE |
132 |
< NW >
|
PHY_DATA_IND |
|
133 |
< NW >
|
MAC_DATA_IND |
|
134 |
UE ---> SS |
RLC ACK |
|
135 |
UE ---> SS |
Scheduling Request(PUCCH) |
To send RRC Connection Reconfig Complete from UE |
136 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RRC Connection Reconfig Complete from UE |
137 |
< NW >
|
PHY_DATA_IND |
|
138 |
< NW >
|
MAC_DATA_IND |
|
139 |
< NW >
|
RLC_DATA_IND |
|
140 |
< NW >
|
PDCP_DATA_IND |
|
141 |
UE ---> SS |
RRC Connection Reconfiguration Complete
+ Attach Complete
+ Activate Default EPS Bearer Context Accept
|
|
142 |
UE <--- SS |
HARQ ACK (PHICH) |
|
143 |
UE <--- SS |
RLC ACK |
|
144 |
< NW >
|
MAC_DATA_REQ |
|
145 |
< NW >
|
PHY_DATA_REQ |
|
146 |
UE <--- SS |
DCI 1A |
To decode RLC ACK in UE |
147 |
|
< IP Data Traffic if needed > |
|
148 |
UE <--- SS |
RRC Connection Release |
|
149 |
< NW >
|
PDCP_DATA_REQ |
|
150 |
< NW >
|
RLC_DATA_REQ |
|
151 |
< NW >
|
MAC_DATA_REQ |
|
152 |
< NW >
|
PHY_DATA_REQ |
|
153 |
UE <--- SS |
DCI 1A |
To decode RRC Connection Release in UE |
154 |
UE ---> SS |
HARQ ACK |
|
155 |
UE ---> SS |
Scheduling Request(PUCCH) |
To send RLC ACK from UE |
156 |
UE <--- SS |
DCI 0 (UL Grant, PDCCH)
|
To send RLC ACK from UE |
157 |
< NW >
|
PHY_DATA_IND |
|
158 |
< NW >
|
MAC_DATA_IND |
|
159 |
UE ---> SS |
RLC ACK |
|
160 |
UE <--- SS |
HARQ ACK (PHICH) |
|
161 |
UE |
< Now UE should be in IDLE mode > |
|