The present document specifies or references procedures used on the Base Station System (BSS) to Serving GPRS
Support Node (SGSN) interface for control of GSM packet data services.
The functional split between BSS and SGSN is defined in 3GPP TS 23.060 which states that a BSS is responsible for
local radio resource allocation. The required procedures between BSS and SGSN are defined in detail in the present
document.