transceiver: Properly handle MAXDLY.

Previously MAXDLY value was applied to Normal Bursts, which was nice
when working with sloppy test equipment like CMD57, but useless for
real world usage. At the same time documentation and de facto usage
of MAXDLY in OsmoBTS and OpenBTS assumed that it actually applies to
Access Bursts (RACH). So this patch changes osmo-rx behavior to apply
MAXDLY to RACH bursts and introduces a new command MAXDLYNB for the
old behavior.

1 files changed, 3 insertions, 1 deletions

diff --git a/Transceiver52M/sigProcLib.h b/Transceiver52M/sigProcLib.h
index 870eb1a..93251b5 100644
--- a/Transceiver52M/sigProcLib.h
+++ b/Transceiver52M/sigProcLib.h
@@ -192,13 +192,15 @@ bool energyDetect(signalVector &rxBurst,
         @param sps The number of samples per GSM symbol.
         @param amplitude The estimated amplitude of received RACH burst.
         @param TOA The estimate time-of-arrival of received RACH burst.
+        @param maxTOA The maximum expected time-of-arrival
         @return positive if threshold value is reached, negative on error, zero otherwise
 */
 int detectRACHBurst(signalVector &rxBurst,
                     float detectThreshold,
                     int sps,
                     complex &amplitude,
-                    float &TOA);
+                    float &TOA,
+                    unsigned maxTOA);
 
 /**
         Normal burst correlator, detector, channel estimator.