edge: Make window size configurable
Currently the window size is fixed to 64 even for EGPRS.
Support dynamic window sizes depending on the number of PDCH. The
WS can be set to b + f * N_PDCH. If the result is not valid according
to TS 44.060, Table 9.1.9.2.1, the value will be corrected to use the
next lower valid value (or 64).
The following VTY commands are added (config-pcu node):
window-size <0-1024> set base (b) value and leave f unchanged
window-size <0-1024> <0-256> set base (b) and factor (f)
Sponsored-by: On-Waves ehf
diff --git a/src/bts.h b/src/bts.h
index c6247be..14b6c1f 100644
--- a/src/bts.h
+++ b/src/bts.h
@@ -188,8 +188,8 @@
uint8_t cs_adj_lower_limit;
struct {int16_t low; int16_t high;} cs_lqual_ranges[4];
uint16_t cs_downgrade_threshold; /* downgrade if less packets left (DL) */
- uint16_t egprs_ws_base;
- uint16_t egprs_ws_lin;
+ uint16_t ws_base;
+ uint16_t ws_pdch; /* increase WS by this value per PDCH */
/* State for dynamic algorithm selection */
int multislot_disabled;