Specifications

Network Planning A-4
Capacity Tables
Capacity Tables
These tables are provided as a guideline for network element capacities. Hardware and software revisions may alter
these capacities. Current published capacities are available from system engineering.
Note
Always review the latest capcities and engineering tools available on the iDEN Core Engineering website.
Table A-3 Mobile Switching Center Limitation Guidelines
Table A-4 Short Message Service Limitation Guidelines
Subsystem Users Sites Limiters BRs Comment
MSC (U10)
(XA Core) SR 7.0
220K
N/A
80% CPU
usage
N/A
CPU Utilization varies with call profile. SNSE - Max of 120
LIU7s and 27 DTCs CPU is based on Traffic Profile. 106K is at
0.88 BCHA and at 10% CPU due to mobility 1 in 20
authentications at 0.12ms CA Core is 40% gain over SR7.0
Engineering Limit
MSC (10) SR 7.0 160K
86% CPU
usage
HLR (10) SR 7.0
940K N/A
86% CPU
usage
N/A
Signalling capacity should not exceed maximum capacity on the
trunks (40% @ 64kbs). Subscriber limitations are based on 1 in
20 authentication a traffic profile of: 0.12 sms
HLR (09) SR 7.0
85% CPU
usage
Subsystem Users Sites Limiters BR Comment
SMS N/A N/A
16 linksets
70% CPU
Usage
N/A
40 messages/second with a 200 Mhz processor @ 0.2 Busy
Hour Short Messages (BHSM)
16Mb of RAM for each 60K provisioned subscribers
1 SS7 trunk /40K BHSM attempts
Maximum of 38.4K short messages per hour