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what is application function in 5g

by Mr. Winston Stanton IV Published 1 year ago Updated 1 month ago

Application Function (AF) is a control plane function within 5G core network, provides application services to the subscriber. Example it can be for video streaming service. If an AF is trusted it can interact directly with 5GC network functions or if it is 3rd party, then it should interact with an NEF.

What is 5G and how does it work?

Next-gen wireless network capabilities offer the potential for revolutionary applications extending far beyond smartphones and other mobile devices. A new range of 5G use cases and applications that converge connectivity, intelligent edge, and Internet of Things (IoT) technologies will benefit everyone, from gamers to governments.

What are the advantages of 5G SBA?

NEF (Network Exposure Function): One of the biggest advantages of 5G SBA is that it emphasizes the use of HTTP/2 based stateless APIs for communication. NEF facilitates a third-party application function (AF) by securely exposing some of the services offered by 5G core network functions.

What is the role of the SMF in 5G?

Decoupling other control plane functions from the user plane, the SMF also performs the role of Dynamic Host Configuration Protocol (DHCP) server and IP Address Management (IPAM) system. For more details, see our SMF reference guide. These are just some of the new network functions of the 5G Core Service Based Architecture.

How will 5G impact the future of industrial automation?

With 5G, industrial automation applications can cut the cord and go fully wireless, enabling more efficient smart factories.


What is application function in telecom?

The AF is a logical element of the 3GPP PCC framework which provides session related information to the PCRF in support of PCC rule generation. If you enjoy using our glossary, here are some other useful resources you might like... Get your weekly dose of telecoms terminology delivered straight to your inbox!

How many applications does 5G have?

Smart city applications like traffic management, Instant weather update, local area broadcasting, energy management, smart power grid, smart lighting of the street, water resource management, crowd management, emergency response, etc.… can use a reliable 5G wireless network for its functioning.

What is NRF function in 5G?

Oracle Communications Cloud Native Core, Network Repository Function (NRF) works as a centralized repository for all the 5G network functions (NFs) in the operator's network. The NRF allows 5G NFs to register and discover each other via a standards-based API.

What is the function of AMF in 5G?

The 5G AMF, is an evolution of 4G MME, continuing with the Control Plane and User Plane Separation, and with further simplifications like moving the Sessions Management functions to the SMF and, providing common SBA interfaces.

What are the three main application domains of 5G?

The rollout of 5G will provide benefits in three major areas, also known as the “5G triangle”: uRLLC: Ultra Reliable Low Latency Communication use cases. mMTC: Massive Machine Type Communication (IoT) use cases. eMBB: Enhanced Mobile Broadband – high speed use cases.

What software does 5G use?

A: 5G is based on OFDM (Orthogonal frequency-division multiplexing), a method of modulating a digital signal across several different channels to reduce interference. 5G uses 5G NR air interface alongside OFDM principles. 5G also uses wider bandwidth technologies such as sub-6 GHz and mmWave.

What is AMF and UPF in 5G?

Glossary: SBA (Service Based Architecture), UE (User Equipment), UPF (User Plane Function), AMF (Access Management Function), AUSF (Authentication Service Function), SMF (Session Management Function), NSSF (Network Slice Selection Function), NEF (Network Exposure Function), NRF (NF Repository Function), PCF (Policy ...

What is the main function of NRF?

The Network Function Repository Function – or NRF – is a key element of the new 5G Service Based Architecture. It basically provides a single record of all network functions (NF) available in a given PLMN, together with the profile of each and the services they support.

What is SGW and PGW in 5G?

SGW (Serving Gateway) – is the boundary between E-UTRAN and EPC. SGW transfers data from the eNodeB to the PGW using the S1-U (in communication with the eNodeB) and S5 / S8 (in communication with the PGW) interfaces.

What is the function of UDM in 5G?

The Unified Data Manager Function (UDM) supports following functionalities: Generate 3GPP 5G AKA Authentication Vectors. User Identification Handling (e.g. storage and management of SUPI for each subscriber in the 5G system)

What is PDU session in 5G?

1 What is a PDU Session? The 'PDU Session' is the (new) abstraction for 5G user plane services like the concept of a Packet Data Network (PDN) connection in 4G Evolved Packet Core (EPC). A PDU Session provides connectivity between applications on a UE and a DN such as the 'Internet' or private corporate networks.

Is AMF same as Mme?

The Access and Mobility Management Function (AMF) serves part of the role of the 4G MME, that of mobility management. The AMF maintains a NAS signaling connection with the UE and manages the UE registration procedure. The AMF is also responsible for paging.

What 6G will be?

6G (sixth-generation wireless) is the successor to 5G cellular technology. 6G networks will be able to use higher frequencies than 5G networks and provide substantially higher capacity and much lower latency. One of the goals of the 6G internet is to support one microsecond latency communications.

What are the disadvantages of 5G?

DrawbacksGigabit mobile communications have so far provided little added value for consumers.Still inadequate availability (especially in rural areas)New devices required.More transmission antennas required for uniform network coverage than with 4G.More items...

What are the applications of 5G?

5G Applications in the Real World: 1 With high capacity and ultra-low latency, 5G will give artificial intelligence (AI) and IoT applications a major boost across a range of industries and use cases. 2 Consumers will see changes including more immersive gaming and improved retail experiences. 3 As enterprises use 5G as a conduit to process and analyze more data, business value is expected to be generated across a range of industries.

Why is 5G used in business?

As enterprises use 5G as a conduit to process and analyze more data, business value is expected to be generated across a range of industries.

Why is 5G important?

5G’s promise of low latency and high network capacity helps to eliminate the biggest limitations to IoT expansion. Giving devices nearly real-time ability to sense and respond, 5G and IoT are a natural pairing that will impact nearly every industry and consumer.

What is low latency 5G?

Low-latency 5G will drive major innovation in virtual reality (VR) applications, which depend on fast feedback and response times to provide a realistic experience. These applications are likely to explode in number and sophistication as 5G networks and devices become the new normal.

What is 5G edge computing?

Intelligent edge computing operates at the convergence of 5G’s ultra-low latency, IoT, and AI technologies. Devices and applications can tap into edge cloud computing resources without needing to access a centralized data center potentially thousands of miles away.

What is the 5th generation of wireless technology?

The fifth generation of wireless technology—5G—represents the changing face of connectivity. Designed for maximum speed and capacity, 5G has the potential to vastly expand how data is moved and will enable a wide range of new applications and use cases that go far beyond the smartphone.

How does 5G help AI?

While 5G will help enable AI inference at the edge, it will also play a role in delivering data from devices to the central cloud to train or refine AI models. For example, real-world data about road conditions collected by connected vehicles can improve cloud-based mapping services.

What is 5G application?

So what is 5G and what is a 5G application? In our 5G Trials and Testbeds Programme in DCMS we have deliberately adopted a broad definition, to encompass new, innovative technologies and applications that can help to deliver the connected communities that we will take for granted in the future.

How is 5G Different?

So what’s special about 5G and what new applications will it enable? The traditional explanation is that there are three strands to 5G:

How long has 2G been around?

Generations are not single leaps forward, there are gradual, small steps that get us from one to the next. 2G has been continuously evolving since 1991. The first big step came around 2000 when GPRS added data at up to 38kb/s followed by faster EDGE in 2003. Meanwhile in 2002, 3G (also called Wideband CDMA) launched with 384kb/s download. 3G top speed reached 14Mb/s with HSDPA by 2005 and even more today. The 4th generation in 2012 and was the first to have a single global standard. It had the not-so-snappy name of LTE – “Long Term Evolution”. While 3G had brought us a taste of internet access at a reasonable speed, 4G was designed from the bottom up for high speed data. Further enhancements have followed. With the mouthful of names that each technology has featured it’s not surprising that we’ve preferred to label them simply 2G, 3G, 4G, 5G. The industry has also got used to the idea that a new generation comes every 10 years.

Is 5G faster than 4G?

The first is the most obvious, and the way 5G has begun. It’s more of the same, but faster and with capacity to support more users. This is important. Every generation starts with demonstrations that tend to show what the network can do with only one user. It was never realistic to expect 4G networks to support large amounts of data rates to many users at the same time. With 5G it may be, so that things you can just demonstrate on a new generation often become viable as a real service on the next. You can be sure that our demand for high capacity mobile broadband networks will continue increasing for some time yet. Maybe the next wave of mobile communications will allow mass-market immersive virtual reality.

What are the benefits of 5G?

The rollout of 5G will provide benefits in three major areas, also known as the “5G triangle”: 1 uRLLC: Ultra Reliable Low Latency Communication use cases 2 mMTC: Massive Machine Type Communication (IoT) use cases 3 eMBB: Enhanced Mobile Broadband – high speed use cases

What is the 5G network?

The fundamental idea behind #5G is a single network that is flexible enough to handle many different use cases. To deliver 5G, mobile network operators (MNOs) have to build a dense network with a massive amount of nodes that form the 5G infrastructure. #cellular. Click To Tweet.

What is Digi WR54?

The Digi WR54, with FirstNet™ Ready options, is designed to support traffic management and emergency response use cases, while pre-certified Digi XBee 3 Cellular modules are deployed in traffic and parking sensors, metering applications, city lighting and more .

What is uRLLC in 5G?

Ultra Reliable Low Latency Communication (uRLLC) will be one of the biggest game changers once 5G is fully deployed. Here, we will see new applications that require response in fractions of a second.

How will MNOs invest in 5G?

Each node costs money, and MNOs will invest into 5G through network upgrades and densification first in cities, where they can reach many paying customers and get a faster return on their investment. In rural areas the 5G rollout will happen at a slower pace.

How far would a car travel with 5G?

With 5G latency around 10 milliseconds, the vehicle would only have traveled 5 inches or 12 centimeters. The difference is significant and could mean life or death.

Why do vehicles need to be able to send and receive messages in milliseconds?

A vehicle must be able to send and receive messages in milliseconds in order to brake or shift directions in response to road signs, hazards and people crossing the street.

What is 5G system architecture?

The 5G System architecture is defined to support data connectivity and services enabling deployments to use techniques such as e.g. Network Function Virtualization and Software Defined Networking. The 5G System architecture shall leverage service-based interactions between Control Plane (CP) Network Functions where identified. Some key principles and concept are to: 1 Separate the User Plane (UP) functions from the Control Plane (CP) functions, allowing independent scalability, evolution and flexible deployments e.g. centralized location or distributed (remote) location. 2 Modularize the function design, e.g. to enable flexible and efficient network slicing. 3 Enable each Network Function and its Network Function Services to interact with other NF and its Network Function Services directly or indirectly via a Service Communication Proxy if required. 4 Minimize dependencies between the Access Network (AN) and the Core Network (CN). The architecture is defined with a converged core network with a common AN – CN interface which integrates different Access

What is NEF in 5G?

Network Exposure Function (NEF) supports exposure of network functions capabilities in 5G system to external network functions such as 3rd party, Application Functions. External exposure can be categorized as Monitoring capability, Provisioning capability, Policy/Charging capability and Analytics reporting capability. The Monitoring capability is for monitoring of specific event for UE in 5G System and making such monitoring events information available for external exposure via the NEF. The Provisioning capability is for allowing external party to provision of information which can be used for the UE in 5G System. The Policy/Charging capability is for handling QoS and charging policy for the UE based on the request from external party. The Analytics reporting capability is for allowing an external party to fetch or subscribe/unsubscribe to analytics information generated by 5G System (e.g. roaming status of a specific UE is reported by UDM to NEF and the NEF will transfer it to the 3 rd party network function). Also 3 rd party applications might be untrusted and NEF can be required.

How does 5G work?

That is why this is referred to as 5G non-standalone (5G NSA). The full potential of 5G will only be exploited with independent networks (5G standalone, 5G SA), upgraded technology behind the transmission towers, and compatible devices.

What is 5G network?

One of the most important technical innovations of 5G is the ability to divide the network into application-specific layers depending on requirements and to operate several virtualized subnetworks concurrently. This is based on technologies such as network functions virtualization (NFV) and software-defined networking (SDN). The 5G network is cut into several slices, so to speak, which is why it is also referred to as “network slicing.” Each layer or slice is optimized for a specific requirement:

What are the risks associated with 5G?

Of course, there can be no hundred percent security in the 5G network either. Security researchers have already uncovered several vulnerabilities in the network protocols that permitted man-in-the-middle attacks and DoS attacks, among other things. In general, software vulnerabilities are one of the main gateways for cybercriminals. And since software plays a significant role in the 5G infrastructure, the potential risk it poses is also immense.

What is the current status of the 5G network rollout?

In Germany, 5G has become more widespread since 2019. While the LTE infrastructure has largely been used as the technical basis to date, the expansion of 5G technology in the form of standalone transmission towers and antennas is steadily progressing. According to Deutsche Telekom, more than two-thirds of the people in Germany can already access its 5G network today, and coverage is expected to reach 80 percent by the end of 2021 and 99 percent by 2025. Vodafone now reaches more than 20 million people in Germany with its 5G network. That number is expected to rise to over 30 million by the end of the year. Telefónica Deutschland aims to supply more than 30 percent of German households with 5G by the end of 2021 and to offer a “nationwide” 5G network by 2025. Globally, 5G is expected to be available to one-third of the world’s population by 2025. According to estimates by the GSMA, the new communications standard will then account for as many as 1.2 billion connections.

What is 5G in the US?

5G is the successor to the previous mobile telecommunication standards G SM (2G), UMTS (3G), and LTE (4G). Development and standardization are being carried out by the 3GPP standards organization and have not yet been finalized. The new communication standard goes far beyond digital telephony and fast mobile internet. It is seen as a response to the increasing data traffic worldwide in the course of digitalization, which is being driven by things such as streaming, big data, and the Internet of Things (IoT). 5G is expected to set new standards in terms of data speed, network capacity, response time, reliability, and data security and enable real-time data communication for the first time. This promises many new application possibilities, such as in the areas of IoT, self-driving cars, and Industry 4.0 (IIoT).

What is the difference between 5G and LTE?

While LTE uses bands below 3 GHz in particular, the 5G frequency range extends to 6 GHz and is to be expanded over the long term to include frequencies from 24 GHz to a maximum of 100 GHz. This means that significantly more bandwidth is available for data transmission. However, widespread 5G coverage also requires significantly more base stations than LTE. That is because the higher a frequency is, the more data can be sent over it. At the same time, however, the range decreases proportionally.

What is 5G core?

Like the 4G Evolved Packet Core (EPC), the 5G Core aggregates data traffic from end devices. The 5G Core also authenticates subscribers and devices, applies personalized policies and manages the mobility of the devices before routing the traffic to operator services or the Internet.

What is UPF in 5G?

User Plane Function (UPF). Emerging from Control and User Plane Separation (CUPS) strategies defined within non-standalone 5G New Radio specifications, the 5G core UPF represents the evolution of the data plane function of the Packet Gateway (PGW). This separation allows data forwarding to be deployed and scaled independently so that packet processing and traffic aggregation can be distributed to the network edge. For more details, see our UPF reference guide.

What is the difference between EPC and 5G?

While the EPC and 5G Core perform similar functions, there are some major differences in that the 5G Core is decomposed into a number of Service-Based Architecture (SBA) elements and is designed from the ground-up for complete control and user plane separation. Rather than physical network elements, the 5G Core comprises pure, virtualized, ...

Is 5G faster than 4G?

In the evolution of next generation mobile architectures, much of the focus is understandably on 5G New Radio – primarily, how much faster it will be than today’s 4G access and what kind of bandwidth-intensive services can be supported because of that. But deeper into the network, the new 5G Core specification will introduce radical changes in the way mobile networks are designed in order to support a wider array of services with varied performance requirements – from enhanced mobile broadband to massive Internet of Things (IoT) connectivity to ultra-reliable, mission-critical communications.

Is 5G cloud native?

5G Core network functions will need to be massively scalable, highly reliable and support automated operations. As we’ve said many a time here on the blog, the 5G future will be cloud native.

What is AMF in 5G?

AMF stands for Access and Mobility Management Function . Following are the functions of 5G NR AMF node.#N#• Termination of RAN CP interface (N2)#N#• Termination of NAS (N1), NAS ciphering and integrity protection.#N#• Registration management.#N#• Connection management.#N#• Reachability management.#N#• Mobility Management.#N#• Lawful intercept (for AMF events and interface to LI System).#N#• Provide transport for SM messages between UE and SMF.#N#• Transparent proxy for routing SM messages.#N#• Access Authentication and Access Authorization#N#• Provide transport for SMS messages between UE and SMSF.#N#• Security Anchor Functionality (SEAF). It interacts with the AUSF and the UE, receives the intermediate key that was established as a result of the UE authentication process. In the case of USIM based authentication, the AMF retrieves the security material from the AUSF.#N#• Security Context Management (SCM). The SCM receives a key from the SEAF that it uses to derive access-network specific keys.#N#• Location Services management for regulatory services.#N#• Provide transport for Location Services messages between UE and LMF as well as between RAN and LMF.#N#• EPS Bearer ID allocation for interworking with EPS.#N#• UE mobility event notification.

What does SMF stand for in 5G?

SMF stands for Session Management Function. Following are the functions of 5G NR SMF node.#N#• Session Management;#N#• UE IP address allocation and management;#N#• Selection and control of UP function;#N#• Configures traffic steering at UPF to route traffic to proper destination;#N#• Control part of policy enforcement and QoS;#N#• Downlink Data Notification.


The Road to 5G

The first mass-market mobile networks in the UK began in 1985 using an adapted version of American analogue technology. Around the same time, countries around the world were installing analogue systems, with at least six different technologies. This is regarded as the first generation of mobile phones. 2G began in Europe in 1…
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How Is 5G Different?

  • So what’s special about 5G and what new applications will it enable? The traditional explanation is that there are three strands to 5G: 1. Enhanced Mobile Broadband, 2. Ultra Reliable Low Latency Communications (URLLC), and 3. Massive Internet of Things (IoT) . The first is the most obvious, and the way 5G has begun. It’s more of the same, but faster and with capacity to support more u…
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Building The 5G CORE Network

  • Along with the obvious changes in radio technology, with each generation come new ways of building the core network behind the scenes and the allocation of extra spectrum to support more users and higher speeds. These two things open up some new possibilities to build local private networks using 5G. The most obvious uses lie in industrial automation. Wiring up factories is ex…
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5G Applications

  • So what is 5G and what is a 5G application? In our 5G Trials and Testbeds Programme in DCMS we have deliberately adopted a broad definition, to encompass new, innovative technologies and applications that can help to deliver the connected communities that we will take for granted in the future. From health and social care, to fish farming and from ...
See more on

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