HP 83206A User Manual page 279

Handoffs and
There are several types of handoffs possible within TIA/EIA-136. These are listed
Mobile Assisted
below.
Handoff (MAHO)
•
•
•
•
Basic steps in all handoffs
1. Start in Conversation task
2. Base station sends a handoff message
3. Mobile acknowledges
4. Mobile tunes to new channel and starts transmitting
5. Timing is aligned
6. End Handoff by re-entering Conversation mode
Table 8
Handoff
Direction
Start
Send Handoff
message(s)
Acknowledge
Transmit
Time
alignment
End Handoff
DTC to DTC
DTC to AVC
AVC to DTC
AVC to AVC
DTC to DTC DTC to AVC
Start in Conversation mode
Contains new Contains new
channel, channel
timeslot, DVCC
Acknowledge Acknowledge
handoff handoff
message message
Normal or SAT
shortened bursts
Typically set to
Standard Offset
Reference
(SOR)
Enter Conversation mode
Chapter 10, TIA/EIA-136 Basics
Basic Functions of the DCCH in TIA/EIA-136
AVC to DTC
Word 1:
message type,
DVCC
Word 2: new
channel, DMAC channel, DMAC
Send ST for 50
msec.
Shortened
bursts
Typically set to
Standard Offset
Reference
(SOR)
AVC to AVC
Word 1:
message type,
AVC
Word 2: new
Send ST for 50
msec.
SAT
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