Personal tools

Mobile Air Interface and Mobile Backhaul

Eiffel Tower_Paris_France_052517
 

 

- Mobile Air Interface

Some of the most common acronyms used in the discussion of wireless are those that describe the air interface method of a wireless network. The air interface, or access mode, is the communication link between the two stations in mobile or wireless communication. The air interface involves both the physical and data link layers (layer 1 and 2) of the OSI model for a connection. In cellular telephone communications, the air interface is the radio-frequency portion of the circuit between the cellular phone set or wireless modem (usually portable or mobile) and the active base station. As a subscriber moves from one cell to another in the system, the active base station changes periodically.

The air interface technology specifies the method for transmitting information over the air between base stations and mobile units. Most air interface technologies are specified in standards that are agreed upon by multinational bodies comprising representatives in the wireless industry. Some air interface methods, however, remain proprietary with certain companies and details of their operation may or may not be publicly accessible.

 

- The 5G NR (New Radio) Air Interface

The 5G New Radio (5G NR) is a new air interface being developed for 5G. 5G NR is being developed from the ground up in order to support the great variety of services, devices & deployments which 5G will encompass, including diverse spectrum requirements, building on established LTE technologies to ensure backwards and forwards compatibility.

  

- Mobile Backhaul

Mobile Backhaul (MBH) is the process of connecting cell site air interfaces to wireline networks, which are subsequently connected to data centers that host the content and applications accessed by mobile users - both human and machine.  Manufacturers of network switching equipment use the term backhaul to refer to the process of getting data to the Internet network backbone, for example, by packet-based Carrier Ethernet solutions that offer robust, scalable, and cost-effective MBH network designs. Mobile networks are increasingly the most popular vehicles for accessing remote content. But the data flying through the airwaves is only half the story. MBH is what happens behind the scenes to move data from the cell sites to data centers and other points along the way.

In a hierarchical telecommunications network the backhaul portion of the network comprises the intermediate links between the core network, or backbone network, and the small subnetworks at the edge of the network. Cell phones communicating with a single cell tower constitute a local subnetwork; the connection between the cell tower and the rest of the world begins with a backhaul link to the core of the Internet service provider's network (via a point of presence). 

Cell phones communicating with a single cell tower constitute a local subnetwork; the connection between the cell tower and the rest of the world begins with a backhaul link to the core of the Internet service provider's network (via a point of presence). 

 

 

[More to come ...]




Document Actions