5G Wireless Communication Terminology Abbreviation(PRAT-1)

3G

3nd Generation

4G

4nd Generation

5G

5nd Generation

3DES

Triple Data Encryption Standard.
3DES (Triple DES) is an encryption algorithm for the transition from DES to AES (in 1999, NIST designated 3DES as a transitional encryption standard) and is a more secure variant of DES. 3DES is a mode of the DES encryption algorithm that uses three 56-bit keys to encrypt data three times.

3GPP

Third Generation Partnership Project.
Founded in 1998, it is composed of telecommunication standardization organizations from many countries and regions. It is an international standardization organization with broad representation and an important developer of 3G technology. Its purpose is to coordinate conflicts among members and formulate rules and contracts.

5GC

5G Core Network

5G NSA

5G Non-Standalone.

5G can not be directly connected to the core network, through the 4G control surface access, and then through the dual connection User segments are split between 4G and 5G.

5G SA

5G Standalone
It adopts an end-to-end 5G network architecture, and adopts 5G-related standards from terminals, new wireless air interfaces to core networks. It supports various 5G interfaces, realizes various 5G functions, and provides 5G services.

5G RAN

5G Radio Access Network

5QI

5G QoS Identifier

802.1x

An access control and authentication protocol based on client/server. It can restrict unauthorized users/devices from accessing LAN/WLAN through access ports. After a client is associated with an AP, whether it can use the wireless services provided by the AP depends on the 802.1x authentication result. If the client can pass the authentication, it can access the resources in the WLAN; if it cannot pass the authentication, it cannot access the resources in the WLAN.

AAA

Authentication, Authorization and Accounting.

A mechanism for configuring authentication, authorization, and billing. Authentication refers to confirming the user's identity and the network services that can be used; authorization refers to opening network services to users based on the authentication results; billing refers to recording the user's usage of various network services and providing it to the billing system.

AAS

Adaptive Antenna System

The antenna system that uses multiple antennas to send and receive signals uses digital signal processing technology to track and extract the spatial information of each mobile user, generate spatial directional beams, and achieve the purpose of utilizing mobile user signals and deleting or suppressing interference signals. The different spatial positions of users can be used to send and receive signals from each user in the same channel without mutual interference, thereby improving the spectrum utilization of the system.

AAU

Active Antenna Unit

ABR

Adaptive Bit Rate.
Adaptive bitrate means that the video server provides media resources with multiple bitrates, and the client selects the most appropriate bitrate for video playback based on actual conditions, such as network congestion and player processing capabilities. It also automatically switches to the appropriate bitrate segment file based on changes in the situation. Currently, streaming protocols that support adaptive bitrates include DASH, HLS, and HSS.

ACC

Automatic Congestion Control.
When the traffic to a certain office is too heavy, causing the voice channel to be overloaded, the MSC Server where the congestion occurs initiates an automatic flow control service, which is implemented by the adjacent MSC Server.

ACK

ACK nowledgement

ACL

Access Control List
A list of entities that are authorized to access a resource and their access permissions.

ACLR

Adjacent Channel Leakage power Ratio

AES

Advanced Encryption Standard.
A symmetric block cipher algorithm released by the National Institute of Standards and Technology (NIST) on November 26, 2001. It is one of the most popular algorithms in symmetric key encryption. This standard is used to replace DES. The Advanced Encryption Standard is intended to implement an unclassified, publicly available symmetric encryption algorithm. The cipher block size is fixed at 128 bits, and the key size is 128 bits, 192 bits, or 256 bits.

AISG

Antenna Interface Standards Group

ALD

Antenna Line Device

AMBR

Aggregate Maximum Bit Rate
A QoS parameter defined by 3GPP, indicating the maximum rate allowed for all Non-GBR services of a UE.

AMC

Adaptive Modulation and Coding

AMF

Access and Mobility Management Function.

One of the core network functions of 5GC, logically interconnected with gNodeB through the NG interface.

AMF Region

AMF Region

AMF Set

AMF Set

AMR

Adaptive MultiRate

A codec algorithm based on adaptive rate and using algebraic code excited linear prediction mechanism (ACELP), usually also refers to a codec type.

AN

Access Network

ANR

Automatic Neighbor Relation

ARP

Allocation and Retention Priority.

A QoS feature, ARP parameters can be applied to both GBR and Non-GBR bearers. Its main purpose is to determine whether a bearer establishment or bearer modification request can be accepted. It can also be used to determine whether a bearer establishment or bearer modification request is rejected due to limited system resources.

ARP

Address Resolution Protocol.
The Internet Protocol that maps IP addresses to MAC addresses, allowing hosts and routers to determine link-layer addresses through ARP requests and ARP replies.

AS

Access Stratum.
A functional layer in NR wireless systems.

ATR

Adaptive Time Recovery