50 ms are discarded. Stored messages are transferred in the same order
as they arrive from MS.
Emergency calls have precedence over temporarily stored messages.
Each accepted CHANNEL_REQUEST is reported to BSC as a
CHANNEL_REQUIRED message according to /GSM:08.58:8.5.3/.
22.3
Operational Conditions
22.3.1
Paging
The number of paging groups supported by the RBS is dependent on
the channel combination:
•
•
The paging queue length varies between 6 and 14 depending on the
number of paging queues in use. The length is calculated as:
Length = 14 - (PQMax/10) ; where PQMax = the highest paging group/
queue in use.
22.3.2
Immediate Assign
Max. number of elements in the IA queue = 10 and in the IAR queue =
10, in the IAPGQ = 3 and in the IRPGQ = 4.
22.3.3
CCCH Dequeuing and Transmission
A number of stacks are used for message retransmission:
•
•
•
22.3.4
Channel Request by MS
The RBS can receive and perform acceptance checks, corresponding to
full RACH capacity. The RBS can report accepted channel requests, as
CHANNEL_REQUIRED messages, corresponding to 37 % of the
requests on full RACH load.
EN/LZT 720 0008
P2A
2001-11-28
(iv) The use of 16-81 paging groups is supported
(v) The use of 4-27 paging groups is supported
One IA stack, number of elements = 4
Paging stacks (one stack/paging queue), number of elements/stack
= 4
IAPGSs, number of elements = 3
© Ericsson Radio Systems AB
— All Rights Reserved —
Common Control Channel Handling
235 (485)