Axesstel PST - Manual (Page 107)

AXESSTEL Software User's Guide Contents
T_COMP=2.5dB, T_TDROP=4 seconds, Win_A=40 chips,
Win_N=160 chips, Win_R=100 chips, and NGHBR_MAX_AGE=0.
The Retriever will use these parameters for all search and handoff
operations in Sync, Idle, and Traffic states until it is power-cycled.
SRCH_95B_SOFT_ENA
In terms of system parameter overrides, the Retriever Pilot Scanner
supports enabling the IS-95B extensions to soft-handoff whereby a
soft-handoff slope, Add Intercept value, and Drop Intercept value
are applied to the handset’s Traffic-state soft-handoff algorithms.
The advantage of these extensions in IS-95B is to reduce the amount
of network resources a handset uses for soft-handoff.
The srch_95b_soft_ena command allows you to explore “what-if”
scenarios looking ahead to IS-95B deployment by sending IS-95B
soft-handoff parameters to Retriever and enabling the IS-95B
handoff algorithm.
Syntax srch_95b_soft_ena soft_slope add_int drop_int rpt_ota_thr
soft_slope is the IS-95B soft handoff slope in hundredths (0.01) units.
add_int is the Add Intercept value in half-dB units.
drop_int is the Drop Intercept value in half-dB units.
rpt_ota_thr is the Report OTA Threshold enable flag. When enabled
(rpt_ota_thr=1), this flag tells the Retriever to adjust energies in the
Pilot Strength Measurement Message (PSMM) so that events occur
consistent with the existing IS-95A thresholds. This is the
recommended setting for Lucent and Motorola infrastructure. When
disabled (rpt_ota_thr=0), the Retriever sorts all PSMMs in strength
order. This is the recommended setting for Nortel infrastructure.
In IS-95B, pilots can be promoted to the Candidate set without the
handset sending a PSMM. This situation occurs if there is ample
Active set energy such that the dynamic add threshold (controlled
by the IS-95B parameters) is higher than T_ADD. If the dynamic add
threshold later drops, a PSMM may be sent to add the Candidate
pilot, but the Candidate may have dropped slightly below T_ADD.
In order to force this kind of IS-95B add event in IS-95A networks
utilizing certain makes of infrastructure, the actual reported energy
must be adjusted upward to T_ADD by enabling the rpt_ota_thr flag
(rpt_ota_thr= 1) so that the IS-95A base station will add the pilot as
AXESSTEL Proprietary
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