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srsRAN_4G
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2595 Commits (f662aeaff39e211b4ca1e92f55844b5e36592845)

Author SHA1 Message Date
Ismael Gomez f662aeaff3
Remove unnecessary zero memory (#1564) 
* RF drivers to allow nullptr buffers in send/recv

* Remove zeromem from radio

* remove unused buffers
 5 years ago
Andre Puschmann dc67d28709 nas: do not generate NAS encryption key if also is set to NULL 
its more a cosmetic change to clean the logs. this makes
sure that a zero key is logged when NULL encryption is selected.
 5 years ago
Ismael Gomez 1eaf7efab0 Fix UL adaptive retx rv index 5 years ago
Xavier Arteaga 5cf2089a8c srsLTE: increased SRS test TA us threshold 5 years ago
Xavier Arteaga 794f969e1a srsLTE: fix TA calculation 5 years ago
Xavier Arteaga 729986f259 srsLTE: Added PUCCH format 3 valid correlation 5 years ago
Xavier Arteaga 0192130742 SRSUE/SRSENB: UCI bits are carrier by the lowest serving cell index 
SRSENB: Fix UCI in lowest serving cell index PUSCH transmission
 5 years ago
Andre Puschmann c8b4ba885b rename rlc_tx_queue to byte_buffer_queue 
this data structure will be used by the PDCP layer as well.
 5 years ago
Francisco Paisana 36fc88d2e2 fsm log macros, and utility methods to convert event callbacks to move tasks 5 years ago
Francisco Paisana 9c5471b094 more ergonomic event callback 5 years ago
Francisco Paisana d48a45976e moved cell selection/search complete event signalling out of phy_controller 5 years ago
Francisco Paisana 489969722e implemented phy controller FSM to perform cell selection & search. The controller also tracks the phy sync state 5 years ago
Andre Puschmann 6fb01d61a7 rlc: change remaining occurances of "SN: " to "SN=" 
streamline all RLC AM and UM for better log analysis
 5 years ago
Xavier Arteaga 137d250d66 srsLTE: fix ZMQ decimation pointer 5 years ago
Andre Puschmann a7911f0dab pdcp,rlc: refactor SDU queueing policy 
this patch refactors the SDU queuing and dropping policy of the RLC and PDCP layer.
the previous design had issues when packets have been generated at a higher
rate above the PDCP than they could be consumed below the RLC.

When the RLC SDU queues were full, we allowed two policies, one to block on the write
and the other to drop the SDU. Both options are not ideal because they either
lead to a blocking stack thread or to lost PDCP PDUs.

To avoid this, this patch makes the following changes:

* PDCP monitors RLC's SDU queue and drops packets on its north-bound SAP if queues are full
  * a new method sdu_queue_is_full() has been added to the RLC interface for PDCP
* remove blocking write from pdcp and rlc write_sdu() interface
  * all writes into queues need to be non-blocking
  * if Tx queues are overflowing, SDUs are dropped above PDCP, not RLC
* log warning if RLC still needs to drop SDUs
  * this case should be avoided with the monitoring mechanism
 5 years ago
Andre Puschmann 7a66a00e15 block_queue: add method to check if given queue is full 5 years ago
Xavier Arteaga f39abe0094 SRSENB: fix MAC pending PHY config 5 years ago
Francisco Paisana 5e06430455 removal of stack handler interface 5 years ago
Francisco Paisana 7c364070ee creation of task scheduler interface for classes/functions running outside the main control thread 5 years ago
Francisco Paisana 039977aeb5 renamed interfaces 5 years ago
Francisco Paisana 1a9c04bf2f use of task scheduler handle in pdcp 5 years ago
Francisco Paisana e9f34c7613 using task scheduler in enb stack 5 years ago
Francisco Paisana 4f5e65781f created task scheduler class to deal with timers, thread pool, multiqueue, internal tasks 5 years ago
Pedro Alvarez 89b6e0f714 Send paging message to all cells. 5 years ago
Francisco Paisana fe8f8be62d apply separate cqi configurations to scells 5 years ago
Andre Puschmann d5f0ad9f35 pdcp: fix typo 5 years ago
Andre Puschmann 2749c870e3 rlc_am: refactor control test 
* move both tests into own functions and call those in main()
* use common test header and macros
 5 years ago
Andre Puschmann 035c369a43 mac_pdu: fix check of remaining length when adding new subheader to MAC PDU 
when adding a new subheader to a MAC PDU we should only add the subheader
if at least 2 bytes are left in the PDU. Even a 1 Byte MAC Control Element requires
another byte to pack the subheader.

This fixes #1424 in which a 3 B MAC opportunity is provided in the UL. After
adding the Short BSR, we tried to add another MAC subheader. Adding the subheader
succeeded even though no space is left to add a single byte. With this patch,
adding the subheader fails and the generates MAC PDU is correct.
 5 years ago
Andre Puschmann 58e255cb63 pdu_test: add unit test to verify correct packing of 3B PDU with Short BSR 5 years ago
Andre Puschmann 5589816690 pdu_test: fix PCAP output 
API now requires to pass CC index
 5 years ago
Andre Puschmann f6d3467884 ringbuffer: fix timeout calculation for timed read 
with ZMQ RF, we've seen the radio returning -1 and traced
the issue down to the ringbuffer.
in fact, pthread_cond_timedwait() returned 22 (EINVAL) indicating
a wrong timeout value. The issue was likely an overflow
in the timespec parameter. This patch checks for the return
value of pthread_cond_timedwait() and also calculates the
nanosecond wrap around for the timespec
 5 years ago
Andre Puschmann aed38a6028 rf_zmq: increase default ZMQ timeout to 2s 
amarisoft flags an RF error and exits after not receiving samples
for the radio. Running with ZMQ in the RFCI, the UE sometimes needs more
time to start up due to slow processing and no fftw wisdom file and
then Amarisoft eNB times out. This gives the whole process a little
bit more time. Should we still find it too short we may increase
it further.
 5 years ago
Andre Puschmann b3e92883d4 rlc_um: reduce log level when provided space is not enough to build PDU 
this is not a warning case as it can always happen. reduce level to info therefore.
 5 years ago
Andre Puschmann 95f5093432 rlc_am: hold lock while handling new PDUs 
This lock was removed in 1cbf7eac because it was considered unneeded.
However, as can be seen in issue #1503, we need to protect the access
to rx_window, for example.

Issue #1503 shows a stack trace where a PHY worker generates a status PDU.
While holding the mutex to access rx_window, the stack thread on the
other hand, happily accesses the rx_window member without acquiring
the lock. This commit protects all handle_*() functions in write_pdu().

This reverts commit 1cbf7eac04.
 5 years ago
Francisco Paisana e550bf726d updated fsm to allow enter methods to receive event that caused them 5 years ago
Andre Puschmann 6f5da19312 pdcp: similar to tx, also reduce log for Rx 
instead of logging PDU received from below, and SDU that is forwarded
to above, only log the PDU in rx in info mode.

The next layer will do the same and log the PDU received (which is the SDU coming from here)
so there is now loss of information in the logs.
 5 years ago
Andre Puschmann 6654453e22 pdcp: reduce amount of log messages during tx 
drop logging encrypted PDU seperately. Instead, only log formatted
PDCP PDU before passing to lower layers
 5 years ago
Xavier Arteaga 6f03ce7e11 srsLTE: minor radio fix 5 years ago
Xavier Arteaga 67543a73bb Radio: fix erroneous offset 5 years ago
Xavier Arteaga 8966db31d8 srsLTE: Radio benchmark plots all ports 5 years ago
Andre Puschmann ff96336f91 rlc_um: fix reestablishment for sending UM entity 
we've reset the rx state variables during reestablishment but not
the tx state variable.
 5 years ago
Francisco Paisana 84f34bc736 changed to a label filtering approach for ctest 5 years ago
Francisco Paisana ebb8f18000 set some extra tests with the prefix "long_" 5 years ago
Francisco Paisana c6323478d2 remove unecessary sleeps in mac test, and add long_ prefix in long tests 5 years ago
Andre Puschmann eb56efe9f5 rlc_am_lte: turn error message into warning and print state variables 
the issue doesn't cause any unrecoverable situation so its not
appropiate to use the error level
 5 years ago
Francisco Paisana cb7f620254 created separate class to manage bearers buffers/status reports in the scheduler 5 years ago
Andre Puschmann a3d7d4517c rlc_um: add dedicated unit test for the PDU packing bug 
Here is the test output with the fix disabled:

13:47:42.679774 [RLC_UM_1] [D] MAC opportunity - 14 bytes
13:47:42.679784 [RLC_UM_1] [D] pdu_space=14, head_len=2
13:47:42.679790 [RLC_UM_1] [D]  adding new SDU segment - 10 bytes of 10 remaining
13:47:42.679834 [RLC_UM_1] [D]  Complete SDU scheduled for tx. Stack latency: 0 us
13:47:42.679909 [RLC_UM_1] [D] pdu_space=4, head_len=2
13:47:42.679922 [RLC_UM_1] [D]  adding new SDU segment - 0 bytes of 10 remaining
13:47:42.679928 [RLC_UM_1] [I]  Tx PDU SN=0 (14 B)
13:47:42.679974 [RLC_UM_1] [D]  vt_us = 1

The test checks the correct packing and of the two PDUs at the end.
 5 years ago
Andre Puschmann df50dd7d3c rlc: extend RLC metrics 
extend RLC metrics to count Rx/Tx PDUs/SDUs bytes/#
 5 years ago
Andre Puschmann 48db31c5cf rlc_stress_test: fix random PDU dropping 
the rand() was sometimes giving NaN so this case needs to be handled
and the PDU not dropped to have real zero drop-rate
 5 years ago
Andre Puschmann 82f811ed52 rlc_am: change return value when writing SDU 
return false when SDU couldn't be added to SDU tx queue so
to count dropped SDUs in base
 5 years ago