USBD/LIP

M2023.01 adds Unified Single Block Data (USBD) Polling Service and Location Information Protocol (LIP) to Capacity Max. The radios and system now support LIP Polling and Immediate Reporting. 

USBD Polling is described in ETSI TS 102-361-4 (v1.11.1) §6.6.11 and uses the Trunking Station Control Channel (TSCC) but can also use alternate slot (TSCCAS) to pass location traffic - though the latter is currently not supported.

The main advantage is that MOTOTRBO radios can now support location tracking when used on other vendor's systems and other vendor's radios can send location updates over a Capacity Max system.

LIP is defined in ETSI TS 100 392-18-1, which has its origins in TETRA. Although LIP functionality is being added, LRRP support remains unchanged.

Currently USBD/LIP in Capacity Max can only make use of the first slot of the control channel (TSCC) and can support up to 100 location updates per minute per site.

Currently, only clear (unencrypted) mode is supported and only while the site is in wide area trunking. USBD also currently does not support data revert like LRRP can, however it is comparatively efficient since it uses a single slot for each update (similar to high efficiency GPS).

It is not supported in local site trunking as well as where the repeater has been configured for Shared Control Channel operation. 

A radio may not respond to a request when transmitting or receiving a voice or data call or when the radio is out of range.

USBD/LIP does not support indoor location by means of BTLE (or any other type of) beacons.

The latest releases of dispatch console applications support USBD polling service and can receive GNSS location updates in this way.

No additional licence is required for using USBD on Capacity Max systems. The system and radios do however need to be upgraded to M2023.01.

To enable it, simply enable USBD Location Polling in the system set; and schedule a write job to the repeaters and CMSS.