Hytera DMR System Planner
59
status of the slots. If its Tx slot is designated, A will detect the status of the Tx slot
first, and then determine whether to transmit according to TX Admit settings. If the
channel is free, and Subscriber A doesn’t have a designated Tx slot, Slot 1 will be
the default Tx slot for A to establish the communication with B. If Subscriber C is
going to call D now, it will find Slot 1 busy and have the transmission and
communication to D in Slot 2.
If the whole channel is occupied when the subscriber is transmitting, the subscriber
will take Slot 1 as the default Tx slot and determine whether to transmit according to
TX Admit settings. The transmission process is the same as in Direct mode, and the
repeater is used for transferring the signals or data.
See the following details of transmission:
TX Admit
Entire Channel Free
Only One Slot Free
Entire Channel Occupied
Always allow
Tx is allowed.
Tx is allowed.
Tx on Slot 1.
Channel free
Tx is allowed.
Tx is allowed.
Tx is not allowed.
Color code free Tx is allowed.
Tx is allowed.
Tx is not allowed.
There are both subscribers using Pseudo Trunk and a single time slot respectively.
Figure 2.8.1-4
:
Pseudo Trunk Application in Repeater Mode 2
In this circumstance, the subscriber with single time slot can only use its own
designated time slot, and the subscriber with Pseudo Trunk can use any slot for
transmission if it doesn’t have designated Tx slot. As the figure above shows, the
single-time-slot Subscriber A and B can only use Slot 1, while pseudo-trunk
Subscriber C and D can use Slot 1 and Slot 2, but will take Slot 1 as their default Tx
slot. Thus, Slot 1 will have big probability to be occupied. Once this happens, the
pseudo-trunk subscribers will determine whether to transmit according to their TX
Summary of Contents for PD70X Series
Page 1: ...DMR System Planner ...
Page 2: ......
Page 4: ...Revision History Version Date Description Remarks R1 0 November 21 2012 Initial release ...
Page 126: ...Hytera DMR System Planner 122 Figure 1 4 Analog to digital Conversion 2 ...
Page 174: ...Hytera DMR System Planner 170 For your notes ...
Page 178: ...Hytera DMR System Planner 174 For your notes ...
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