Merge branch 'develop-nr-merge' of https://gitlab.eurecom.fr/oai/openairinterface5g into develop-nr-merge

develop integration branch: 2019 week 28

See merge request oai/openairinterface5g!640

* MR 635 : fix rfsim ue sync
* MR 636 : Bugfixes 2019 w28
* MR 637 : Fixing Multi-RRU support and CI Testing
* MR 639 : fix bladeRF compilation

Merge remote-tracking branch 'origin/ci-develop-multi-rru-support' into develop_integration_2019_w28

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

The 5G phone OPPO has a very big UE capability (> 2KB).

We need bigger buffers to transfer this, especially in x2 handover.

Also the sctp messages need a bigger buffer.

Note: in sctp, we didn't check for partial messages, it's now
      done. When detected, we exit. To be redone differently
      if needed. (Look for "if (!(flags & MSG_EOR))".)

We declare variables in header files, we don't define them. So we need
to use 'extern' in the header file and put the definition
in some C file.

This used to be done to ease power estimation in the UE,
but this is not correct. Let's put no energy in the REs
with no DCI data, which is what needs to be done.

Plus it consumes a lot of CPU because of calling taus()
way too much.

To be used when you send data to another host.

On the other host, to avoid ICMP traffic about the port
not being open, do:

./nc -l -u -p 9999 > /dev/null

You need to restart this command each time you run macpdu2wireshark.
You can use any other program that will accept UDP packets on the
port 9999 (default port of macpdu2wireshark, change if you use another
port of course).

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Integration develop nr 2019w28

See merge request oai/openairinterface5g!633

adding support 3/4 sampling for 40MHz (in that case OFDM symbols are not necessarily aligned on 32byte -> segfault on AVX2 architectures)

* To run gNB : sudo ./nr-softmodem -E -O ../../../targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpb210.conf
* To run UE : sudo ./nr-uesoftmodem -E --numerology 1 -r 106 --phy-test -C 3510000000 --ue-rxgain 90 -d
* We had done a wired test with 40dB attenuator in between gNB and nrUE.

Develop: Integration 2019 Week 27

See merge request oai/openairinterface5g!629

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>