How a call is established in 3G systems?

When initiating a call or data session, the device sends a signal first to the base station. In CDMA2000, the device initiates the session as either a voice session, a packet data session, or both. The base station sends the signal to the base station controller, and RAN authentication occurs.

How does 3G network work?

The 3G services work using a “cellular” based technology; the signals are passed from phone tower to phone tower, and then the tower nearest the phone passes the signal to it. It also means there can be dips in service as you move around, as the signal switches from tower to tower and as you move too far from a tower.

What is 3G in mobile communication?

3G is the third generation of wireless mobile telecommunications technology. It is the upgrade for 2.5G GPRS and 2.75G EDGE networks, for faster data transfer. This ensures it can be applied to wireless voice telephony, mobile Internet access, fixed wireless Internet access, video calls and mobile TV technologies.

What are the two main 3G cellular technologies?

This led to the establishment of two distinct 3G families: 3GPP and 3GPP2. The 3rd Generation Partnership Project (3GPP) was formed in 1998 to foster deployment of 3G networks that descended from GSM. 3GPP technologies evolved as follows: General Packet Radio Service (GPRS) offered speeds up to 114 Kbps.

How a call is established in GSM network?

The call is routed through the telephone network to the closest MSC to the called GSM subscriber. Next, Gateway MSC checks with HLR, asking “Where is the GSM subscriber?” After that, the call is established to the actual MSC/VLR (Visiting MSC) either directly or through the fixed or international telephone network.

What is 3G network called?

3G: Third Generation.

What are the parts of a 3G network architecture?

There are three major parts to a 3G mobile network:

• A Radio Access Network (RAN). This is a hierarchical arrangement of cell towers and base stations.
• A core network (usually IP) tying the RAN to the 3G service network.
• A service network reached through the core network.

How a call is established?

The mobile of called party receive the paging message sent by the base station and respond by identifying itself over the reverse control Channel. The base station relays acknowledgement sent by the called party and informs the MTSOs about the Handshake i.e. both the call party and called party are available.

What devices use 3G?

Many devices within the internet of things—home alarm systems, wearable medical equipment, fire alarms, even ankle monitors—still operate on 3G networks. And 3G devices are used in industries from aviation to trucking.

What is the use of 3G mobile technology?

3G is mostly used with mobile phones and handsets as a means to connect the phone to the internet or other IP networks in order to make voice and video calls, to download and upload data, and to surf the Web.