Graham Freeland
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Awarded to Graham Freeland on 15 Feb 2022
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Awarded to Graham Freeland on 09 Oct 2019
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Feeds
Usage of CSI-RS in 5G NR
The CSI-RS in use are signalled to a UE through common and dedicated L3/RRC signalling. Take a look at the RRC ASN in 38.331 for...
presque 5 ans il y a | 0
lteDCIResourceAllocation calculation with SI-RNTI
These functions assume non-SI layout of the DCI messages so you can't indicate different message field layouts and interpretatio...
environ 5 ans il y a | 0
Incorrect CDL/TDL modeling in 5G toolbox and LTE toolbox
This misinterpretation was recently fixed in the respective products: https://www.mathworks.com/support/bugreports/details/2064...
plus de 5 ans il y a | 0
| A accepté
Are the 5G toolbox functions coder friendly? I am getting errors while generating C++ code for some 5G toolbox functions. (v2019a)
Hi Pranjali, Regarding the dynamic array sizes, can you state the specific functions that you are referring to, and, if appropr...
plus de 5 ans il y a | 0
5g polar coding charts
See this previous answer: Polar Coding Performance Graham
presque 6 ans il y a | 0
5G library uplink functions
The R2019a release of the 5G Toolbox product adds support for the NR uplink: https://www.mathworks.com/products/5g.html Graham...
presque 6 ans il y a | 0
5G Toolbox: will there be any support for uplink channels?
The R2019a release of the 5G Toolbox adds support for the NR uplink: https://www.mathworks.com/products/5g.html Graham
presque 6 ans il y a | 0
How do you recover bits after using 'lteRMCULTool.m'?
Most of the uplink BLER simulations use the UL RMC Tool to generate an uplink waveform in a piece-wise fashion then decode it us...
presque 6 ans il y a | 0
| A accepté
how can i generate CP - OFDM as a result of 5g NR result?
Take a look at the 5G Toolbox: https://www.mathworks.com/products/5g.html
presque 6 ans il y a | 0
| A accepté
lte waveform generation wsing LTETestModelTool
Hi, These are standard defined E-TM waveforms, and therefore they are downlink OFDM with the associated PAPR levels. However, ...
presque 6 ans il y a | 0
PUSCH Throughput Conformance Test got throughput 0 with ue.RC = 'A4-3'
Should be good, run it and check the throughput curve trend.
environ 6 ans il y a | 0
| A accepté
PUSCH Throughput Conformance Test got throughput 0 with ue.RC = 'A4-3'
The simulation length will generally depend on the channel doppler. A4-3 is used in reference tests using EPA5 or EVA70 channels...
environ 6 ans il y a | 0
PUSCH Throughput Conformance Test got throughput 0 with ue.RC = 'A4-3'
Hi, You'll have to move the SNR range of the simulation up since the code rate is now a lot higher, going from 1/3 (A3-2) to 3/...
environ 6 ans il y a | 0
Requesting help with R=2/3 turbo encoding for lte waveform.
Hi, You need to use soft demodulation of the 16QAM symbols, which is the default for that function i.e. Rxbits = lteSymbolDe...
environ 6 ans il y a | 0
| A accepté
How to add multiple nodes (users) in "Release 14 CV2X example"?
Since the V2X sidelink throughput/BLER simulation is a single link-level simulation, which explicitly lists out the transport an...
environ 6 ans il y a | 0
How to run NBIoT BER simulation
Looking over the Release Notes, NB-IoT support generally and that example in particular was not introduced in the LTE Toolbox un...
plus de 6 ans il y a | 1
5G library uplink functions
The 5G Library Add-On for LTE System Toolbox only supports the downlink. Having said that, there is a lot of commonality between...
plus de 6 ans il y a | 0
Vehicle to Vehicle (V2V) communications
In terms of LTE based sidelink (PC5) V2X communications, at the L1-L3 link-level, the LTE Toolbox has comprehensive and detailed...
plus de 6 ans il y a | 1
| A accepté
Does anyone have an NBIoT Uplink waveform generator?
Hi there, R2018b of the LTE Toolbox now adds NB-IoT uplink support, as well as LTE-M MTC/eMTC BL/CE modelling. For more info,...
plus de 6 ans il y a | 1
| A accepté
NB-IoT NPUSCH Block Error Rate Simulation and Waveform Generation
Hi there, R2018b of the LTE Toolbox now adds NB-IoT uplink support, as well as LTE-M MTC/eMTC BL/CE modelling. For more info,...
plus de 6 ans il y a | 0
5G library functions for LTE system toolbox
Hi Shannon, The h5gXXXX functions are, strictly speaking, part of the examples so their documentation is localized to the fun...
plus de 6 ans il y a | 2
| A accepté
Mapping PDSCH and DM-RS symbols to slot grid
'Map to slot grid' just means using the MATLAB assignment operation i.e. slotgrid(pdschindices) = pdschsymbols; slotgrid(pds...
plus de 6 ans il y a | 1
| A accepté
How to install lte5g.mlpkginstall
Hi, The details are here: <https://www.mathworks.com/help/matlab/matlab_env/get-add-ons.html Get Add-Ons> "To install an ...
plus de 6 ans il y a | 4
5G carrier aggregation parameters
Take a look at 5G NR spec documents, TS 38.101-x. Graham
plus de 6 ans il y a | 0
| A accepté
How to implement list decoding of polar codes in matlab ?
The 3GPP 5G NR polar codes are implemented as part of the <https://www.mathworks.com/matlabcentral/fileexchange/61585-5g-library...
presque 7 ans il y a | 0
I was having problem in finding description of the function "mwltelibrary". How can I know about it??
Hi, like you said, this an internal mex function that is part of the LTE System Toolbox implementation. The turbo coding functio...
presque 7 ans il y a | 1
3GPP 5G Link Level Modeling Using TDL/CDL Propagation Channels
The 5G NR throughput simulation is implicitly recording the transport block BLER/PER via the blkCRC variable (this indicates whe...
presque 7 ans il y a | 0
| A accepté
In "LTE Cell Search, MIB and SIB1 Recovery with Two Antennas": Shouldn't we reacquire the signal, once we know the full bandwidth of the system?
The example is designed to work with a single input waveform, for example, an actual capture or a synthetic waveform. This allow...
presque 7 ans il y a | 0
| A accepté
How to insert QC-LDPC codes into an F-OFDM system?
Hi there, Take a look at the <https://www.mathworks.com/matlabcentral/fileexchange/61585-5g-library-for-lte-system-toolbox 5G...
presque 7 ans il y a | 0
| A accepté
Questions for NB-IoT NPDSCH Block Error Rate Simulation and Waveform Generation Example
The NB-IoT specific NDPSCH channel is only defined for QPSK (TS 36.211 section 10.2.3.2). The signallable range of transport...
presque 7 ans il y a | 0
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