Notes for personal use, messy
5G network opening part
Video commentary 1Video
commentary 3Video
commentary 2
Generally speaking, it is a table lookup, and the only calculation is the calculation of the IP address.
exploration planning
NR frequency band lookup table, the device information shows the working frequency band: 2515-2675MHz,
actually only need to remember n41 n78 n79 three in the table lookup n41
network deployment
power access, memory
Fill in the form of neighbor information according to the neighbor relationship, and fill it in order
IPV4/IPV6 address calculation:
9001: 1306:: 6 IPV6 is 128 bits, and each number represented is 16. Here, several 0s are omitted between 1306 and 6, and 6 is actually 0006. The standard format is 9001: 1306: 0000: 0000 :0000:0000:0000:0006
and according to the subnet mask, phase and can calculate the local gateway IP address is, 9001:1306:0
Internet of Vehicles
The learning link
is very detailed here
Complete process supplement:
The three routes of the core network are the routes from the core network to the outside, and the routes from smf to upf are not
Business server:
BBU:
BBU:
Maximum transmit power 10log (240*1000)=53.8=53
Neighboring cell information check result error:
terminal:
So the cell physical ID fills in 21
Internet of Vehicles:
Datang Training Course Study Notes
- EMB6116 and EMB6212, now mainly use EMB6212, because the upgraded version of 6212 is thinner, a little bit, this time for 6212. EMB6216's new generation 4/5G high-performance multi-mode baseband processing unit (BBU)
- HBPOF is the baseband board, it will be connected to the AAU, and one baseband board supports 3 AAUs
- TDAU516N78-a, this is the numbering rule of CITIC Mobile, TD—TD system, AU is the abbreviation of AAU, 5 is the fifth generation or 5G, 1 is the first product, 64——64 channels, N78— —Represents frequency band 3.5G using N78.
- S111, 111 means that each AAU establishes one 100M NR cell, and one baseband board can support three 100M NR cells
- S111111 is a possible situation in the future, one baseband version supports six 100M NR cells
- The difference between Telecom Unicom (N78) and China Mobile (N41) is mainly the frequency point.
