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adding beamforming support to FAPI: MAC fills ssb_beam_id_list in ssb config. PHY uses this info to fill new beam_id field. This is further copied to RU and applied there. Nothing is tested so far.

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This commit is contained in:
Florian Kaltenberger
2020-10-19 13:36:00 +02:00
parent d4c1e25079
commit 60062cecfb
9 changed files with 82 additions and 30 deletions
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executables/nr-ru.c
+5 -6
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@@ -757,8 +757,9 @@ void tx_rf(RU_t *ru,int frame,int slot, uint64_t timestamp) {
if (fp->freq_range==nr_FR2) {
// the beam index is written in bits 8-10 of the flags
// bit 11 enables the gpio programming
// currently we switch beams every 10 slots (should = 1 TDD period in FR2) and we take the beam index of the first symbol of the first slot of this period
int beam=0;
if (slot==0) beam = 11; //3 for boresight & 8 to enable
if (slot%10==0) beam = ru->common.beam_id[0][slot*fp->symbols_per_slot] & 8;
/*
if (slot==0 || slot==40) beam=0&8;
if (slot==10 || slot==50) beam=1&8;
@@ -2168,11 +2169,9 @@ void set_function_spec_param(RU_t *ru) {
ru->nr_start_if = NULL; // no if interface
ru->rfdevice.host_type = RAU_HOST;
// FK this here looks messed up. The following lines should be part of the if (ru->function == gNodeB_3GPP), shouldn't they?
ru->fh_south_in = rx_rf; // local synchronous RF RX
ru->fh_south_out = tx_rf; // local synchronous RF TX
ru->start_rf = start_rf; // need to start the local RF interface
ru->fh_south_in = rx_rf; // local synchronous RF RX
ru->fh_south_out = tx_rf; // local synchronous RF TX
ru->start_rf = start_rf; // need to start the local RF interface
ru->stop_rf = stop_rf;
ru->start_write_thread = start_write_thread; // starting RF TX in different thread
printf("configuring ru_id %u (start_rf %p)\n", ru->idx, start_rf);