RNCs are base stations that are between the Node B and the network core. The base stations in a Universal Mobile Telecommunications System (UMTS) RAN are referred to as Node Bs and Radio Network Controllers (RNCs). Universal Mobile Telecommunications System (UMTS) RAN
Shrook ran means download#
The services for GERAN include improved upload and download connections to the internet, improved Voice over IP (VoIP) and cellular conversations, constant connection to the most appropriate base station, and higher bit rates in general. The standards body behind most RAN standards, 3GPP, provides examples of services GERANs can offer in its technical report TR 45.912 version 16. The EDGE in GERAN does not refer to edge computing, but instead is an acronym for Enhanced Data Rates for GSM Evolution. More advanced RAN standards have been adopted over time as network operators deployed newer mobile networks. The Global System for Mobiles (GSM) RAN uses base stations and controllers to transmit and manage radio links for circuit-switched and packet-switched core networks.
These types of RANs include GSM RAN (GRAN), GSM EDGE RAN (GERAN), UMTS RAN (UTRAN), and Evolved UTRAN (E-UTRAN). The different types of RANs reflect advancements in networking technology. The control plane and user plane functions of the CU can be separated from each other, just as the planes are in an SDN. A DU, on the other hand, is kept at a base station that is not at an aggregation or core network location. The CU can remain at the base station or it can be placed at a more central aggregation site. The CU also works with the packet data convergence protocol, which compresses and decompresses IP data stream headers and transfers user data, among other technical functions. The CU runs the radio resource control protocol, which conducts many functions, including information broadcasting, establishing and releasing connections between the user equipment and the RAN, and controlling the quality of service. The DU runs the radio link control and medium access control (MAC) layers in addition to some of the physical layer at a base station. Opting for a DU and CU architecture can reduce some of the cost of deployments, allow for flexibility in the design of RAN infrastructure, and can be used in a cloud-RAN infrastructure. In 5G RANs, including 5G cloud-based RANs, the BBU is broken up into the distributed unit (DU) and the central unit (CU). The basic structure of a RAN base station consists of a BBU, radio unit RU or remote radio unit (RRU), antennas, and various software-based interfaces. Network operators have used RANs since the days of 1G and they are still used in current 5G networks. RANs are a key aspect of mobile networks.
Shrook ran means software#
The amount of area a RAN node can cover varies depending on the capabilities of the antennas, RAN hardware, and software at the node. Source: “Flying to the Clouds: The Evolution of the 5G Radio Access Networks” via Springer A traditional RAN architecture where the radio unit, also called remote radio head (RRH), receives information from user equipment (UE) and sends it to the BBU via the CPRI for processing and transmission to the core network.
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