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authorPau Espin Pedrol <pespin@sysmocom.de>2021-09-06 12:24:12 +0200
committerPau Espin Pedrol <pespin@sysmocom.de>2021-09-06 12:26:59 +0200
commit87aa619d0b924bd6bcc6f34a62bcab0be4c153f2 (patch)
tree3e29cb28a79aeb8abd1779bd13a3e722474bd36c
parent54283ba62665ce6410d9da0dddd9601bf9dd719a (diff)
doc: power_control.adoc: Add small time graph showcasing P_CON_INTERVAL
Original graph made by Vadim Yanitskiy. Change-Id: I9b76088b2d46973b477deb555214d64fcc746754 Related: SYS#5371
-rw-r--r--doc/manuals/chapters/power_control.adoc17
1 files changed, 16 insertions, 1 deletions
diff --git a/doc/manuals/chapters/power_control.adoc b/doc/manuals/chapters/power_control.adoc
index 30c36b127..95adbb147 100644
--- a/doc/manuals/chapters/power_control.adoc
+++ b/doc/manuals/chapters/power_control.adoc
@@ -163,7 +163,22 @@ Setting `ctrl-interval` to 1 increases the interval to 960 ms, so basically ever
second Uplink SACCH block is skipped; value 2 corresponds to the interval of
1920 ms, so 3/4 received SACCH blocks are skipped.
-3GPP TS 45.008 briefly mentiones this parameter in table A.1 (P_Con_INTERVAL).
+3GPP TS 45.008 briefly mentions this parameter in table A.1 (P_Con_INTERVAL).
+
+A small time graph is depicted below for better understanding of the meaning of
+values for this parameter, since it is not obvious at all.
+
+.Example: Suspension interval accomplished by several values of P_CON_INTERVAL
+----
+|<-->| - one SACCH multi-frame period
+| |
+|----|----|----|----|----|----|----|----|----> SACCH multi-frames
+a) * * * * * * * * * P_CON_INTERVAL=0 (0.48 s, default)
+b) * * * * * P_CON_INTERVAL=1 (0.96 s)
+c) * * * P_CON_INTERVAL=2 (1.92 s)
+d) * * P_CON_INTERVAL=3 (2.88 s)
+e) * * P_CON_INTERVAL=4 (3.84 s)
+----
==== Power change step size