What's the difference between 3GPP and non 3GPP?

Into the 5G era often heard about non 3GPP access to 5G (NR) system discussion; then 3GPP and non 3GPP what is the difference?

1、3GPP and non 3GPP

• 3GPP (Third Generation Partnership Project) is a cooperation between various telecommunication standard organizations, which defines the cellular network technology standards include: 2G (GSM), 3G (UMTS), 4G (LTE) and 5G (NR).
• non 3GPP refers to other network technologies and standards outside the scope of 3GPP, such as Wi-Fi, Bluetooth and satellite networks. These non 3GPP technologies are typically used to complement 3GPP-defined cellular network communications.

2、3GPP and non 3GPP differ in that they manage different standards and specifications for communications networks, among others:

• 3GPP (Third Generation Partnership Project) is an organization that develops and maintains global standards for mobile telecommunications, including 2G, 3G, 4G and 5G technologies.
• non 3GPP, on the other hand, refers to other communication technologies or standards not defined by 3GPP, such as Wi-Fi, Bluetooth or NTN (satellite communications), which may use different agreements and standards.

3、3GPP stands for the Third Generation Partnership Project, an international body responsible for developing and maintaining technical standards for mobile telecommunications, which defines technical standards, including 2G, 3G, 4G and 5G, to ensure mobile network and device interoperability and global compatibility.

4、3GPP and non 3GPP interoperability 3GPP and non 3GPP through the GID (Global Identifier) to identify each other access to the mobile communications network, in the common identifier GID includes: IMSI (International Mobile Subscriber Identity) and IMEI (International Mobile Equipment Identity) and other identifiers. These identifiers are used to manage and verify different types of network access users and devices.

5、LTE and 3GPP

• LTE (Long-Term Evolution) is a specific technology developed and standardized by 3GPP as part of its 4G network specification; and the range of standards and technologies covered by 3GPP is not limited to LTE, but also includes earlier technologies such as 2G, 3G, and future technologies such as 5G. Thus, while LTE is a product of 3GPP's work, 3GPP itself represents a broader range of mobile network standards and specifications.