Specifications

Location Handover
Handover
D-4 68P81095E55-E August 08, 2000
Hosting Cell
During the request for service, the radio link is analyzed using the Received Signal
Strength Indication (RSSI) and a Signal Quality Estimate (SQE) The SQE is a ratio
of the energy of the carrier to the energy level of both the interference and the noise.
These factors are used define the EBTS with the best radio link is designated as the
host and is used to handle all control and traffic.data between FNE and the MS. The
signal strength relationship is diagrammed in Figure D-1
Figure D-1 Simplified Radio Link Characteristics
General Guidelines for SQE and signal strength are summarized in Table
Table D-1 Signal Quality Guidelines
SQE C I N+()÷=
Radio
Link a
Quality
Radio
Link b
Quality
b hostsa hosts
EBTS a EBTS b
T. N. French
6:1 interleave dispatch and 3:1 interleave interconnect
C/(I+N) Dispatch Interconnect
18dB Good Fair
20dB Good Good
22dB Very Good Very Good
Minimum recommendation: 18dB over 90% of cell coverage area
20dB preferred
6:1 interleave dispatch and 6:1 interleave interconnect
C/(I+N) Dispatch Interconnect
18dB Good Marginal
21dB Good Fair
25dB Very Good Good
Minimum 20db in cell coverage area