User Manual
iSiteC BTS3601C CDMA Base Station
System Description
Chapter 3 System Function
3-6
9)
BTS sends service connection message/service selection response message to
MS, and designates the service configuration used for the call. MS starts to
handle the service according to the designated service configuration.
10) After receiving service connection message, MS responds with one Service
Connect Complete" message.
11) BSC sends “A9-Setup-A8” message to PCF for establishing A8 connection.
12) PCF sends “A11-Registration-Request” to PDSN for establishing A10
connection.
13) PDSN accepts A10 connection establishment request, and returns
“A11-Registration-Reply” message to PCF.
14) PCF returns “A9-Connect-A8” message to BSC. Connection between A8 and
A10 is established.
15) After both radio traffic channel and terrestrial circuit are established, BSC sends
"Assignment Complete" message to MSC.
16) MS negotiates with PDSN to establish PPP connection. In the case of Mobile IP
access, Mobile IP connection will be established. PPP message and Mobile IP
message are transmitted in traffic channel, and are transparent to BSC/PCF.
17) After PPP connection is established, the data service enters "connected" status.
II. SCH establishment
This section describes establishment procedure of MS-originated Supplemental
Channel (SCH). The BSC-originated SCH establishment procedure is similar, and
only differs in the trigger condition.
There is no special SCH release procedure in the case of dynamic SCH allocation.
Instead, BSC determines SCH rate and duration. Once the time is due, SCH will be
released.
MS-originated SCH establishment procedure is shown in Figure 3-4.
