Mobile Station Power Control
15 Mobile Station Power Control
By means of the "MS Power Control" procedure /GSM:08.58:- 4.8/,
BSC gives RBS the power level to be used by MS, on a dedicated
resource.
MS power control is employed to minimise the transmit power required
by the MS while maintaining the quality of the radio links. By
minimising the transmit power levels, interference to co-channel users is
reduced.
Functionality supported:
• MS power control, at channel activation
• MS power control, for an active channel
Channel Activation function is not described here.
15.1 References
/GSM 04.04/ GSM 04.04 (phase2) version 4.0.0
/GSM 05.02/ GSM 05.02 (phase2) version 4.3.0
/GSM 08.58/ GSM 08.58 (phase2) version 4.2.0
Whenever a reference is made to a function described in another chapter,
please refer to the table of contents to find the appropriate chapter.
15.2 Functions
15.2.1 MS Power Control at Channel Activation
Supported channel numbers:
• Bm + ACCH
• Lm + ACCH
• SDCCH/8 + ACCH
• SDCCH/4 + ACCH and TN = 0
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)
RBS actions:
• Storage of MS power level
• Order MS to set the commanded power level
EN/LZT 123 2697 R5A
1998-08-13
115 (306)
© Ericsson Radio Systems AB
— All Rights Reserved —
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