What is the relationship between wireless, network optimization, access, transmission and core in the communications industry?

Wireless, network optimization, access, transmission, core

Not to mention the definition, let’s talk briefly:

Wireless:

Wireless access is a mobile phone wireless network connection or something. wifi or something

Network optimization:

Network optimization, adjust the transmission power, angle, etc. to make the signal better

Access:

It can refer to the mobile phone accessing the base station (nodeB), or the base station accessing the RNC, which has a wide meaning

Transmission:

Signal transmission, data, voice What kind of transmission

Core:

There is a core network, which in a broad sense refers to a large number, such as SGSN and HLR. In a narrow sense, it refers to HLR and database, which contain phone cards, SIM or UIM. Card, imsi and other information, including various services you handle and card type