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- 07 Dec, 2020 1 commit
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Francesco Mani authored
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- 01 Dec, 2020 1 commit
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Raymond Knopp authored
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- 27 Nov, 2020 1 commit
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frtabu authored
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- 02 Nov, 2020 1 commit
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Florian Kaltenberger authored
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- 27 Oct, 2020 3 commits
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cig authored
- the band is coming from the SI, therefore a function to get the band is not necessary - this solves also the limitations of the get_band algorithm with the NR bands overlapping in the NR operating bands table (e.g. band 78 and band 48)
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cig authored
- adapted the get_band function: the algorithm is now taking into account also the UL frequency in order to fetch the proper band (this was failing before as some NR bands have the same DL band, e.g. band 65 and 66) - added new bands to the NR table as per TS 38.101 V16.4.0 (2020) - made the from_nrarfcn function compatible with UL FDD (this function, used for both DL and UL was previously working with TDD only as it did not compute properly the frequency for the UL FDD, throwing asserts) - introduced common functions to get the NR table idx and the duplex mode, removing repeated code in the process - removed the unused function to get the uldl offset - improved some logging - other minor fixes to the relevant code
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cig authored
- removed long-time commented out and unused code - fixed logging
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- 04 Oct, 2020 1 commit
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Laurent authored
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- 22 Sep, 2020 1 commit
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Florian Kaltenberger authored
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- 28 Aug, 2020 2 commits
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Parminder Singh authored
- New Data Structure to store PTRS RE's is removed - LLR's are calculated at the end symbol for whole slot
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Thomas Schlichter authored
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- 27 Aug, 2020 1 commit
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Parminder Singh authored
FEATURE STATEMENT: - Introduce linear phase error noise model in Uplink at UE - Perform common phase error (CPE) estimation and compensation at gNB SOLUTION: - A linear phase shift model is introduced in simulation. - PTRS symbols are used to perform estimation of CPE from DMRS compensated signal - The estimated values are interpolated in time domain and signal is compensated for the CPE. - PTRS processing is done in Frequency Domain for each symbol in a slot and LLR's are calculated for each symbol accordingly. IMPLEMENTATION: * sim.h/channle_sim.c - Linear Phase Noise Generation model definition. * nr_ul_channel_estimation.c/nr_ul_estimation.h - CPE estimation from PTRS and DMRS compensated signal. * nr_dmrs_rx.c/nr_refsig.h - Regenerate PTRS symbols at gNB. * nr_ulsch_demodulation.c - Removed old PTRS processing code and move to a common PTRS processing function * defs_gNB.h/init.c - New PTRS variables definition and initialization * nr_ulsch_ue.c - Corrected PTRS parameter to get new PTRS symbols for each OFDM symbol TESTING * ulsim.c - Added Phase noise, Enable PTRS signal and verified the output. VERIFICATION - The LLR are rotated back with estimated CPE and no error is observed in scrambling/decoding
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- 25 Aug, 2020 1 commit
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Francesco Mani authored
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- 24 Aug, 2020 1 commit
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Raymond Knopp authored
implementation of missing symbol-based rotation for NR modulation/demodulation (Section 5.3 38.211). Tested with unitary simulators (ulsim/dlsim). To be tested with gNB testbench and rfsimlator
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- 19 Aug, 2020 2 commits
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Sakthivel Velumani authored
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Raymond Knopp authored
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- 12 Aug, 2020 3 commits
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Sakthivel Velumani authored
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Francesco Mani authored
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Francesco Mani authored
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- 10 Aug, 2020 1 commit
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Sakthivel Velumani authored
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- 06 Aug, 2020 1 commit
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- 30 Jul, 2020 1 commit
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kn.raju authored
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- 27 Jul, 2020 1 commit
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Laurent authored
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- 17 Jul, 2020 1 commit
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laurent authored
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- 16 Jul, 2020 1 commit
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kn.raju authored
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- 01 Jun, 2020 1 commit
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- 13 May, 2020 1 commit
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- 07 May, 2020 1 commit
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Francesco Mani authored
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- 04 May, 2020 1 commit
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Raymond Knopp authored
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- 22 Apr, 2020 1 commit
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Francesco Mani authored
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- 21 Apr, 2020 1 commit
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Raymond Knopp authored
testing for pucch format 2, 3-11 bits. Configuration works for 2 PRBs, 1 symbol only. Assertion in gNB RX otherwise.
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- 14 Apr, 2020 2 commits
- 26 Mar, 2020 1 commit
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cig authored
- now the function gets more input arguments but can be used from both UE and gNB - this change was needed because the prach fapi of UE differs from the gNB one
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- 19 Mar, 2020 1 commit
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Francesco Mani authored
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- 15 Mar, 2020 1 commit
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Raymond Knopp authored
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- 11 Mar, 2020 2 commits
- 06 Mar, 2020 2 commits
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laurent authored
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Francesco Mani authored
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