Tnp1 Ip Addressing; Mobility Services; Main Control Channel Frequencies; Control Channel Selection - Motorola MTP850 S Product Information Manual

52 | Services and Features

TNP1 IP Addressing

Table 8: TNP1 IP Addressing

Addressing Mode
Wide Mode
Local Mode
Port Addressing

Mobility Services

Following is the description of the Mobility Services.

Main Control Channel Frequencies

The radio can find a wide range of main control channels. The radio maintains stored lists of carrier frequencies
which are scanned in order.
1 A dynamic list of up to 32 discrete entries maintained only by the radio software.
2 A static list of up to 32 discrete frequencies specified by the operator that can be preprovisioned. The system
operator can modify this list using the programming tool.
3 A frequency range specification, using a specific offset, that can be preprogrammed in the factory. The system
operator can modify this range using the programming tool. Then the radio scans all frequencies in 25 kHz
intervals in the specified range.
4 An additional frequency range specification. Having two separate range specifications allows for two non-
contiguous blocks of frequencies or two different offsets.

Control Channel Selection

Each TDMA frame on a given carrier is comprised of four time slots, of which any can be used as a physical channel.
The following types of physical channels are available:
• Traffic physical (TP) channel — used primarily for circuit call traffic.
• Control physical (CP) channel — dedicated only for signaling.
• Packed Data Control (PDCH) channel — dedicated for Packet Data traffic.
• Unallocated physical (UP) channel.
The following types of control channels are available:
• Main Control Channel (MCCH) — occupies the first slot of the main carrier.
• Secondary Control Channel (SCCH) — can be used to extend Control Channel capacity.
The following types of SCCH are available:
• Common SCCH
• Assigned SCCH
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Description
All TNP1 services are available including packet data
transfer towards the SwMI. The address used is the dy-
namic address MS IP or configured statically.
All TNP1 services are available except packet data trans-
fer. The addresses used are the two static addresses TE
IP: 10.0.0.101 and MT IP: 10.0.0.100.
The radio uses a fixed port address for reception and
transmission of TNP1 packets. The port number is 4024.