diff options
| author | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2015-06-04 17:46:33 +0200 |
|---|---|---|
| committer | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2015-06-08 09:40:48 +0200 |
| commit | 8158ea7288f57d7bc66d8ccd1c278999fd656076 (patch) | |
| tree | b6e7a15d91b48afc2ac7559d1a27ebab33cb4ee1 /src/gprs_ms.h | |
| parent | 144a1d0516187d09f80c8b9125c6e51b4988503f (diff) | |
ms: Add blocking period for CS upgrade
Currently the CS level is immediately increased if the error rate
drops below the lower threshold. Since the measurement values are not
damped, this behaviour leads to a quick return to higher CS values
even under bad radio conditions. Since with GPRS RLC/MAC blocks
cannot be resent with another coding scheme, increasing the CS value
should be done carefully.
This commit adds a blocking period that only allows higher CS values
if all error rate measurements were below the LOW threshold for a
certain amount of time (currently fixed to 1s).
Ticket: #1674
Sponsored-by: On-Waves ehf
Diffstat (limited to 'src/gprs_ms.h')
| -rw-r--r-- | src/gprs_ms.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gprs_ms.h b/src/gprs_ms.h index 27c4be40..90b81fee 100644 --- a/src/gprs_ms.h +++ b/src/gprs_ms.h @@ -130,6 +130,8 @@ private: LListHead<GprsMs> m_list; struct osmo_timer_list m_timer; unsigned m_delay; + + int64_t m_last_cs_not_low; }; inline uint32_t GprsMs::tlli() const |