Zte ZXG10-OB06, Technical Manual

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Chapter 4 - System Functions
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• Connection allocation:
Figure 38 shows the procedure of connection allocation.
F
I G U R E
3 8 – C
O N N E C T I O N
A
L L O C A T I O N
MS LAPDm FURRM
HPIMan
LAPD
BSC OAMM
DATA REQ
( ASSIGN CMD)
DL_DATA_IND (DATA REQ
( ASSIGN CMD))
Dm_DL_DATA_R
EQ ( ASSIGN
CMD)
( ASSIGN
CMD)
DATA IND
( ASSIGN FAIL)
DL_DATA_REQ (DATA IND
( ASSIGN FAIL))
Dm_DL_DATA_IN
D ( ASSIGN FAIL)
( ASSIGN
FAIL)
DATA IND
( ASSIGN COMP)
DL_DATA_REQ (DATA IND
( ASSIGN COMP))
Dm_DL_DATA_IN
D ( ASSIGN
COMP)
( ASSIGN
COMP)
The wireless link changes in the same cell.
BSC commands OB06 activation through a simple
request/acknowledgment procedure (see the CHAN ACTIV and CHAN
ACTIV ACK of the ‘access’ procedure). Once OB06 activates, the BSC
commands MS to perform channel change through (RR) ASSIGNMENT
COMMAND message. On changing its settings according to the new
information, and establishing a new signaling link, MS sends (RR)
ASSIGNMENT COMPLETE message to BSC. If MS cannot implement the
connection allocation for some reasons, it sends the (RR) ASSIGNMENT
FAILURE message on the original channel.
The FURRM transfers transparently the (RR) ASSIGNMENT COMMAND,
(RR) ASSIGNMENT COMPLETE and (RR) ASSIGNMENT FAILURE
messages.