Base station subsystem
The Base Station Subsystem ( BSS ; German: base station subsystem ) refers to the fixed radio-related part of a GSM mobile radio network.
construction
The BSS consists of one or more BTS ( Base Transceiver Station ), at least one BSC ( Base Station Controller ), also of several TRAUs ( Transcoder and Rate Adaptation Unit ) and, if GPRS is supported, of several PCUs ( Packet Control Unit ).
functionality
The BSS is responsible for the allocation, approval, administration and operation of the radio interface to enable the end devices to transmit voice and data.
The network elements in the BSS organize the data exchange between the mobile station and the Network Switching Subsystem (NSS), the switching part of the GSM network.
The task of the BTS is the transmission to and from the terminal and the forwarding of the signals to the BSC, as well as the monitoring of the transmission channels. The BSC controls the connected BTSs, manages the radio resources and starts handover processes . TRAU and PCU ensure the recoding of the data streams between the end device and MSC or SGSN .
Individual evidence
- ↑ 3GPP TS 23.002: Network architecture ( English , ZIP / DOC; 155 kB) September 29, 2009. Accessed December 3, 2009.