3GPPFDD_RF_Downlink_Receiver
Description: 3GPP downlink RF receiver
Library: 3GPPFDD, User Equipment
Class: TSDF3GPPFDD_RF_Downlink_Receiver
Parameters
Name |
Description |
Default |
Unit |
Type |
Range |
---|---|---|---|---|---|
SpecVersion |
version of specifications: Version_03_00, Version_12_00, Version_03_02 |
Version_12_00 |
|
enum |
|
RLoad |
input resistance |
DefaultROut |
Ohm |
real |
(0, ∞) |
FCarrier |
frequency of carrier |
2140e6 |
Hz |
real |
(0, ∞) |
Phase |
demodulator reference phase in degrees |
0 |
deg |
real |
(∞, ∞) |
VRef |
reference voltage for output power calibration |
3.2921 |
V |
real |
(0:inf ) |
SamplesPerChip |
samples per chip |
8 |
|
int |
[2:32] |
ExcessBW |
excess bandwidth of raised cosine filters |
0.22 |
|
real |
(0.0:1.0) |
FilterLength |
length of raised cosine filters in number of symbols |
16 |
|
int |
[2:128] |
RefCh |
reference measurment channel: DL_REF_12_2, DL_REF_64, DL_REF_144, DL_REF_384 |
DL_REF_12_2 |
|
enum |
|
ScrambleCode |
index of scramble code |
0 |
|
int |
[0:511] |
ScrambleOffset |
scramble offset in downlink channels |
0 |
|
int |
[0:15] |
ScrambleType |
scramble type: Normal, RightAlternate, LeftAlternate |
Normal |
|
enum |
|
MaxDelaySample |
maximum delay boundary, in terms of samples |
1 |
|
int |
[0:2559] |
ChannelType |
select the channel type to be processed: CH_GAUSSIAN, CH_FADING |
CH_GAUSSIAN |
|
enum |
|
ChannelInfo |
fading channel information source: Known, Estimated |
Known |
|
enum |
|
ChannelInfoOffset |
offset between spread code and channel information in terms of sample |
0 |
|
int |
[0, MaxDelaySample] |
PathSearch |
path search frequency: EverySlot, Once |
Once |
|
enum |
|
SearchMethod |
path search method: Coherent, NonCoherent, Combined |
Coherent |
|
enum |
|
SearchSlotsNum |
number of slots for path search |
6 |
|
int |
[1:6] |
PathNum |
number of Rake fingers |
1 |
|
int |
[1:6] |
PathDelaySample |
delay for each finger, in terms of samples |
0 |
|
int array |
[0: MaxDelaySample]; |
DPCH_SpreadCode |
spread code index of DPCH |
127 |
|
int |
[0, DPCH Spread Factor -1 ] |
CPICH |
select if CPICH is presented: CPICH_Active, CPICH_Deactive |
CPICH_Deactive |
|
enum |
|
RxPCCPCH |
select if PCCPCH is presented: PCCPCH_Active, PCCPCH_Deactive |
PCCPCH_Deactive |
|
enum |
|
RxSCCPCH |
select if SCCPCH is presented: SCCPCH_Active, SCCPCH_Deactive |
SCCPCH_Deactive |
|
enum |
|
SCCPCH_SlotFormat |
SCCPCH slot format |
0 |
|
int |
[0:17] |
SCCPCH_SpreadCode |
SCCPCH spread code |
15 |
|
int |
[0, SCCPCH Spread Factor-1] |
SCCPCH_Carrying |
common channel that SCCPCH carries: PCH, NonPCH |
NonPCH |
|
enum |
|
Pin Inputs
Pin |
Name |
Description |
Signal Type |
---|---|---|---|
1 |
RFin |
input RF signal |
timed |
2 |
DTCH |
DTCH data |
int |
3 |
DCCH |
DCCH data |
int |
4 |
DPCH |
DPCH data |
real |
5 |
inChM |
channel information |
multiple complex |
Pin Outputs
Pin |
Name |
Description |
Signal Type |
---|---|---|---|
6 |
DTCHout |
DTCH data |
int |
7 |
RefDTCHout |
synchronized reference DTCH |
int |
8 |
DTCH_CRC |
DTCH CRC |
int |
9 |
DCCHout |
DCCH data |
int |
10 |
RefDCCHout |
synchronized reference DCCH |
int |
11 |
DCCH_CRC |
DCCH CRC |
int |
12 |
DPCHout |
DPCH data |
int |
13 |
RefDPCHout |
synchronized reference DPCH |
int |
Notes/Equations
- This subnetwork model is the downlink RF receiver for 3GPP FDD. This subnetwork consists of hierarchical models. The timed demodulator is at the front of this subnetwork; the demodulated I/Q signal is sent to the baseband receiver.
The schematic for this subnetwork is shown in the following figure.
3GPPFDD_RF_Uplink_Receiver Schematic
- Refer to 3GPPFDD_DL_Rx_RefCH and 3GPPFDD_UL_Rake for further information.