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Changes for page Debug NB-IoT Connection

Last modified by Xiaoling on 2024/08/19 16:09
From version 10.1
edited by Xiaoling
on 2024/08/19 16:09
Change comment: There is no comment for this version
To version 7.5
edited by Xiaoling
on 2023/04/14 10:10
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -1,38 +10,29 @@
1 -(% class="wikigeneratedid" %)
2 -**Table of Contents:**
3 -
4 -{{toc/}}
5 -
6 -
7 -
8 -
9 -
10 10  = **For BC95-G** =
11 11  
12 12  ----
13 13  
14 14  
15 -== (% style="color:blue" %)**1. Check the reason why you can't access the network**(%%) ==
6 +(% style="color:blue" %)**1. Check the reason why you can't access the network:**
16 16  
17 -(% style="color:#037691" %)**1) AT+CEREG=5**
8 +1) AT+CEREG=5
18 18  
19 -(% style="color:#037691" %)**2) AT+CEREG?**  (%%) ~/~/  This process may be longer, please repeat the input
10 +2) AT+CEREG?  ~/~/  This process may be longer, please repeat the input
20 20  
21 -(% style="color:#037691" %)**3) Mainly check the two parameters **(% style="color:red" %)**cause_type and reject_case**
12 +3) Mainly check the two parameters cause_type and reject_case
22 22  
23 23  
24 24  [[image:image-20220530093747-3.png]]
25 25  
26 26  
27 -== (% style="color:blue" %)**2. Network access operation:**(%%) ==
18 +(% style="color:blue" %)**2. Network access operation:**
28 28  
29 -(% style="color:#037691" %)**1) AT+CFUN=0**
20 +1) AT+CFUN=0
30 30  
31 -(% style="color:#037691" %)**2) AT+NBAND=X**  (%%) ~/~/  X means the local frequency band number
22 +2) AT+NBAND=X  ~/~/  X means the local frequency band number
32 32  
33 -(% style="color:#037691" %)**3) AT+NRB**
24 +3) AT+NRB
34 34  
35 -(% style="color:#037691" %)**4) After waiting for a period of time, you can use **(% style="color:red" %)**AT+CSQ **(%%)**to query the network access**
26 +4) After waiting for a period of time, you can use AT+CSQ to query the network access
36 36  
37 37  
38 38  [[image:image-20220530093821-4.png]]
... ... @@ -40,64 +40,8 @@
40 40  
41 41  (% style="color:blue" %)**Remarks:**
42 42  
43 -~1. The operating voltage of the SIM card used must be less than 3.0V.
34 +~1. The operating voltage of the SIM card used must be less than 3.0V
44 44  
45 -2. The network access time varies with the signal strength.
36 +2. The network access time varies with the signal strength
46 46  
47 -3. If you have not been able to access the network, please try to access the network manually.
48 -
49 -
50 -== (% style="color:blue" %)**3. Check the PS Attach or Detach  **(%%) ==
51 -
52 -(% style="color:#037691" %)**1) AT+CGATT?**
53 -
54 -(% style="color:#037691" %)**Response
55 -+CGATT: <state>
56 -OK**
57 -
58 -(% style="color:#037691" %)**Write Command
59 -AT+CGATT=<state>**
60 -
61 -(% style="color:#037691" %)**<state> Integer type. Indicates the state of PS attachment.
62 -0 Detached
63 -1 Attached**(%%)
64 -
65 -
66 -**Note:Generally, when registering with an operator, attaching GPRS is automatic, and CGATT can manually attach the network.**
67 -
68 -
69 -== (% style="color:blue" %)**4. Check the signaling connection status:**(%%) ==
70 -
71 -(% style="color:#037691" %)**1) AT+CSCON?**
72 -
73 -(% style="color:#037691" %)**Response
74 -+CSCON: <n>,<mode>
75 -OK**
76 -
77 -(% style="color:#037691" %)**<n> Enable/disable the URC. 
78 -0 Disable the URC
79 -1 Enable URC +CSCON: <mode> 
80 -<mode>Signaling connection status.
81 -0 Idle
82 -1 Connected**
83 -
84 -
85 -== (% style="color:blue" %)**5. Check the PDP Context Activate/Deactivate**(%%) ==
86 -
87 -(% style="color:#037691" %)**1) AT+CGACT?**
88 -
89 -(% style="color:#037691" %)**Response
90 -[+CGACT: <cid>,<state>]**
91 -
92 -(% style="color:#037691" %)**[+CGACT: <cid>,<state>]
93 -[…]
94 -OK**
95 -
96 -(% style="color:#037691" %)**<state> Integer type. The state of PDP context activation.
97 -0 Deactivated
98 -1 Activated
99 -<cid> Integer type. A numeric parameter which specifies a particular PDP context definition (see 
100 -AT+CGDCONT).**(%%)
101 -
102 -
103 -(% style="color:red" %)**Note: Note that having a cell ID attached to the network does not necessarily mean successful activation. For data exchange, such as initiating HTTP requests, activation is necessary to use them.**
38 +3. If you have not been able to access the network, please try to access the network manually