The packet ascendancy assemblage (PCU) is a backward accession to the GSM standard. It performs some of the processing tasks of the BSC, but for packet data. The allocation of channels amid articulation and abstracts is controlled by the abject station, but already a approach is allocated to the PCU, the PCU takes abounding ascendancy over that channel.
The PCU can be congenital into the abject station, congenital into the BSC or even, in some proposed architectures, it can be at the SGSN site. In a lot of of the cases, the PCU is a abstracted bulge communicating abundantly with the BSC on the radio ancillary and the SGSN on the Gb side.
The PCU can be congenital into the abject station, congenital into the BSC or even, in some proposed architectures, it can be at the SGSN site. In a lot of of the cases, the PCU is a abstracted bulge communicating abundantly with the BSC on the radio ancillary and the SGSN on the Gb side.
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