Last updated: November 28, 2010
Frame early termination and smart blanking are settings just for the radio configuration pair
(Fwd11, Rev8)
(see
Radio Configuration
).
Smart blanking is operated on both forward and reverse link. When
Traffic Data Rate
is set to
Eighth
, the BS or MS just transmits the information on the background noise, it means if there is no change in the background noise, nothing will be transmitted. So, the smart blanking can decrease the interference. You can access to the Termination / Blanking Information by pressing the
Termination / Blanking Info
(
F4
) softkey on the
Call Control 3 of 4
menu in Test Application or
Call Control 3 of 5
menu in Lab Application.
You can get the parameters of smart blanking by press the softkey
Blanking Parameters
(
F2
)
Forward N2m Indicator
This parameter specifies the number of bad transmission frames that will cause the mobile station to disable its transmitter when forward RC11 is used on F-FCH.
If
Radio config
is
(Fwd11, Rvs8)
and smart blanking is enabled on F-FCH, the mobile station shall disable its transmitter when it receives consecutive transmission frames specified in this setting with insufficient signal quality on F-FCH.
Otherwise, the mobile station still uses the fixed 12 frames with insufficient signal quality on F-FCH as a trigger to disable its transmitter.
GPIB Command: CALL[:CELL[1]]:FCHannel[:FORWard]:N2M:INDicator
F-FCH Blanking Duty Cycle
This parameter specifies the period of non-zero frame transmission on F-FCH.
GPIB Command: CALL[:CELL[1]]:FCHannel[:FORWard]:BLANking:DCYCle
R-FCH Blanking Duty Cycle
This parameter specifies the period of non-zero frame transmission on R-FCH.
GPIB Command: CALL[:CELL[1]]:FCHannel:REVerse:BLANking:DCYCle
Rate 1/8 Non-Critical Frame Ratio
This parameter specifies the percent of non-critical 1/8 Rate frames that are transmitted on the forward traffic channel.
GPIB Command: CALL[:CELL[1]]:FCHannel:EIGHth:NCFRames:RATio
The Frame Early Termination is a method used to terminate transmission of a frame earlier than the nominal length of the frame if the receiver has successfully received the frame, and it is used in both the forward and reverse links. Coding and symbol repetition provide redundancies in traffic channel frames, these redundancies enable the receiver to decode the frames at an interval of several power control groups (PCGs). If decoding is successful, the receiver sends an Ack message to the sender over the reverse link Ack channel or F-FCH. Then the sender stops sending frames and the PCGs will be empty. You can get the Termination / Blanking Information by pressing the
Termination / Blanking Info
(
F4
) softkey on the
Call Control 3 of 4
menu in Test Application or
Call Control 3 of 5
menu in Lab Application.
You can get the frame early termination parameters by press the softkey
Early Termination Parameters
(
F3
).
F-FCH Ack Mask- RL Blanking
This parameter specifies the Ack mask for F-FCH when reverse link blanking is enabled. MS sends single Ack in the PCGs allowed by the Ack mask if it successfully decodes the frame. MS sends NAK in the PCGs allowed by the other Ack masks.The 16-bit Ack mask is separated into two MUI-settings, one for the upper 8 bits, the other for the lower 8 bits.
F-FCH Ack Mask - RL Blanking, Upper:
upper 8 bits of the F-FCH Ack Mask-RL Blanking
F-FCH Ack Mask - RL Blanking, Lower
: lower 8 bits of the F-FCH Ack Mask-RL BlankingGPIB Command: CALL[:CELL[1]]:FCHannel[:FORWard]:ACKMask:RLBLanking
F-FCH Ack Mask- No RL Blanking
This parameter specifies the Ack mask for F-FCH when reverse link blanking is disabled. MS sends single Ack in the PCGs allowed by the Ack mask if it successfully decodes the frame. MS sends NAK in the PCGs allowed by the other Ack masks.The 16-bit Ack mask is separated into two MUI-settings, one for the upper 8 bits, the other for the lower 8 bits.
F-FCH Ack Mask - No RL Blanking, Upper
: upper 8 bits of the F-FCH Ack Mask- No RL Blanking
F-FCH Ack Mask - No RL Blanking, Lower
: lower 8 bits of the F-FCH Ack Mask- No RL BlankingGPIB Command: CALL[:CELL[1]]:FCHannel[:FORWard]:ACKMask:NRLBLanking
R-FCH ACK Mask
This parameter specifies the Ack mask for R-FCH. The subfields in the R-FCH Ack mask indicates whether or not the test set is allowed to transmit an Ack in the corresponding PCGs, the mobile station stops transmit frames on the R-FCH at the half PCG boundary following the PCGs in the frame if Ack is received.
GPIB Command: CALL[:CELL[1]]:FCHannel:REVerse:ACKMask
R-ACK Adjustment Gain -1 Cell
This parameter determines the channel adjustment gain for R-ACK1, R-ACK2 and R-ACK3 when the number of cells in the active set equals 1.
GPIB Command: CALL[:CELL]:RLGain:ACKChannel:ACSize1
R-ACK Adjustment Gain -2+ Cells
(
Lab Application Only
)This parameter determines the channel adjustment gain for R-ACK1, R-ACK2 and R-ACK3 when the number of cells in the active set exceeds 1, and it will take effect when Soft Handoff State is turned on.
GPIB Command: CALL[:CELL]:RLGain:ACKChannel:ACS2plus