Section: 10.3.2.3 FPBI class B
Content: This class is reserved for more complex private installation such as multi-cell PABXs. bit No 19 1 +-------------------------------------+ |0 1| | +-------------------+ Type| CNN + FPN + RPN | FPBI 19 bits <-------------------------------------> Figure 16: Structure of FPBI class B The FPBI class B is composed of the following elements: - FPBI Class B Type. Its length is 2 bits and its value is 01; - CTS Network Number (CNN). Its length is defined by the manufacturer or the system installer; - Fixed Part Number (FPN). Its length is defined by the manufacturer or the system installer; - Radio Part Number (RPN) assigned by the CTS manufacturer or system installer. Its length is defined by the manufacturer or the system installer. NOTE: RPN is used to separate a maximum of 2RPN length different cells from each other. This defines a cluster of cells supporting intercell handover. RPN length is submitted to a CTS-MS as a result of a successful attachment. The FPBI Length Indicator shall be set to (2 + CNN Length) for a class B FPBI.