Call Control
Required Optional element in /GSM:08.58/. The
element is required by the RBS to carry
out the function.
Timing Advance A signal sent by the RBS to the MS which
the MS uses to advance its timings of
transmissions to the RBS to compensate
for propagation delay.
38.3 Functions
38.3.1 Channel Activation
By means of the CHANNEL ACTIVATION procedure /
GSM:08.58:4.1/, the BSC orders the RBS to prepare a dedicated
channel resource for use, and to start reception and transmission on its
associated logical channels.
Supported channel combinations /GSM:05.02:6.4/:
• (i) TCH/F + FACCH/F + SACCH/TF
• (ii) TCH/H(0,1) + FACCH/H(0,1) + SACCH/TH(0,1)
• (v) FCCH + SCH + BCCH + CCCH+ SDCCH/4[0..3] + SACCH/
C4[0..3]
• (vii) SDCCH/8[0..7] + SACCH/C8[0..7]
Supported channel numbers /GSM:08.58:9.3.1/:
• Bm + ACCHs (Associated Control Channels)
• Lm + ACCHs
• SDCCH/8 + ACCH
• SDCCH/4 + ACCH
Supported activation types /GSM:08.58:9.3.3/:
• Immediate Assign
• Normal Assign
• Asynchronous Handover
Supported channel modes /GSM:08.58:9.3.6/:
TCH/F Signalling
TCH/FS Full rate speech
TCH/F9.6 NT Full rate data 9.6 kbit/s non-transparent
TCH/F9.6 Full rate data 9.6 kbit/s transparent
TCH/F4.8 Full rate data 4.8 kbit/s transparent
TCH/F2.4 Full rate data 2.4 kbit/s transparent
TCH/F2.4 Full rate data 1.2 kbit/s transparent
244 (306)
EN/LZT 123 2697 R5A
1998-08-13
© Ericsson Radio Systems AB
— All Rights Reserved —
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