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2682 Commits

Author SHA1 Message Date
Xavier Arteaga 137d250d66 srsLTE: fix ZMQ decimation pointer 2020-07-13 19:15:25 +02:00
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
 2020-07-13 17:05:28 +02:00
Andre Puschmann 7a66a00e15 block_queue: add method to check if given queue is full 2020-07-13 17:05:28 +02:00
Xavier Arteaga f39abe0094 SRSENB: fix MAC pending PHY config 2020-07-13 15:27:46 +02:00
Francisco Paisana 5e06430455 removal of stack handler interface 2020-07-13 11:19:25 +01:00
Francisco Paisana 7c364070ee creation of task scheduler interface for classes/functions running outside the main control thread 2020-07-13 11:19:25 +01:00
Francisco Paisana 039977aeb5 renamed interfaces 2020-07-13 11:19:25 +01:00
Francisco Paisana 1a9c04bf2f use of task scheduler handle in pdcp 2020-07-13 11:19:25 +01:00
Francisco Paisana e9f34c7613 using task scheduler in enb stack 2020-07-13 11:19:25 +01:00
Francisco Paisana 4f5e65781f created task scheduler class to deal with timers, thread pool, multiqueue, internal tasks 2020-07-13 11:19:25 +01:00
Pedro Alvarez 89b6e0f714 Send paging message to all cells. 2020-07-10 10:14:08 +01:00
Francisco Paisana fe8f8be62d apply separate cqi configurations to scells 2020-07-09 18:56:01 +02:00
Andre Puschmann d5f0ad9f35 pdcp: fix typo 2020-07-09 16:13:16 +02:00
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
 2020-07-08 10:09:06 +02:00
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.
 2020-07-08 10:08:26 +02:00
Andre Puschmann 58e255cb63 pdu_test: add unit test to verify correct packing of 3B PDU with Short BSR 2020-07-08 10:08:26 +02:00
Andre Puschmann 5589816690 pdu_test: fix PCAP output 
API now requires to pass CC index
 2020-07-08 10:08:26 +02:00
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
 2020-07-07 23:04:05 +02:00
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.
 2020-07-07 23:04:05 +02:00
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.
 2020-07-07 18:01:39 +02:00
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.
 2020-07-07 10:41:14 +02:00
Francisco Paisana e550bf726d updated fsm to allow enter methods to receive event that caused them 2020-07-06 14:25:03 +01:00
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.
 2020-07-05 16:56:06 +02:00
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
 2020-07-05 16:56:06 +02:00
Xavier Arteaga 6f03ce7e11 srsLTE: minor radio fix 2020-07-03 10:48:20 +02:00
Xavier Arteaga 67543a73bb Radio: fix erroneous offset 2020-07-03 10:48:20 +02:00
Xavier Arteaga 8966db31d8 srsLTE: Radio benchmark plots all ports 2020-07-03 10:48:20 +02:00
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.
 2020-07-02 17:52:55 +02:00
Francisco Paisana 84f34bc736 changed to a label filtering approach for ctest 2020-07-02 15:56:59 +01:00
Francisco Paisana ebb8f18000 set some extra tests with the prefix "long_" 2020-07-02 15:56:59 +01:00
Francisco Paisana c6323478d2 remove unecessary sleeps in mac test, and add long_ prefix in long tests 2020-07-02 15:56:59 +01:00
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
 2020-06-30 14:25:56 +02:00
Francisco Paisana cb7f620254 created separate class to manage bearers buffers/status reports in the scheduler 2020-06-29 17:31:07 +01:00
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.
 2020-06-26 17:58:36 +02:00
Andre Puschmann df50dd7d3c rlc: extend RLC metrics 
extend RLC metrics to count Rx/Tx PDUs/SDUs bytes/#
 2020-06-26 17:58:36 +02:00
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
 2020-06-26 17:58:36 +02:00
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
 2020-06-26 17:58:36 +02:00
Andre Puschmann 3cef20607e rlc_am: fix bug in returning zero len bytes 2020-06-26 17:58:36 +02:00
Andre Puschmann 86025cf390 rlc_um: fix PDU packing when newly added SDU segment was too large 
during the PDU packing it could happen that a new SDU segment
was added but the resulting larger header was so big that not even
a single byte of the new PDU could be added. because this
corner case wasn't handled correctly an invalid PDU was transmitted.

the solution is to revert the addition of the new SDU.
 2020-06-26 17:58:36 +02:00
Andre Puschmann fc3cd24177 rlc_um: fix counting of lost PDUs 
* change try_push() return value to indicate whether the addition
  of the SDU to the tx queue was successful or not
* count lost PDUs
 2020-06-26 17:58:36 +02:00
Andre Puschmann 96726a03e0 rlc_stress_test: fix PCAP support 
expose actual RLC configuration to PCAP object
 2020-06-26 17:58:36 +02:00
Andre Puschmann 1c7bfde404 rlc_stress_test: fix compilation with PCAP enabled 2020-06-26 17:58:36 +02:00
Ismael Gomez 493b7ea2da Remove SNR threshold based link failure detection 2020-06-25 22:57:31 +02:00
Ismael Gomez 874e614970 Increase PUCCH detection threshold to avoid false alarms 2020-06-25 22:57:31 +02:00
Francisco Paisana 2de702f50e disable carrier aggregation when ue release is below 10 or category is below 5 2020-06-25 21:13:11 +01:00
Francisco Paisana 9855749e9a remove comments 2020-06-24 23:28:53 +01:00
Francisco Paisana eee195c828 remote commented lines and added comments 2020-06-24 23:28:53 +01:00
Francisco Paisana 8ea059d578 fix pnf messages and shutdown 2020-06-24 23:28:53 +01:00
Francisco Paisana e555e50a90 fix pnf packing for MIB messages 2020-06-24 23:28:53 +01:00
Francisco Paisana e3e9bbcd62 fix PNF PDU size cutting 2020-06-24 23:28:53 +01:00
Francisco Paisana a0606669e2 fix ue nr gw initialization 2020-06-24 23:28:53 +01:00
Francisco Paisana e6418b4b39 fix variable naming 2020-06-24 23:28:53 +01:00
Francisco Paisana 1d07258458 created pnf bridge executable 2020-06-24 23:28:53 +01:00
Francisco Paisana fddcbc9879 fix vnf-ue stack interface 2020-06-24 23:28:53 +01:00
Andre Puschmann ad1b9d4d9b rlc_um: improve warning message to better differentiate them 2020-06-23 10:56:27 +02:00
Francisco Paisana d7138b7752 fix nr activation guards 2020-06-19 13:33:16 +01:00
Ismael Gomez 29e126a583
Add per-channel TX gain (#1450) 
* Change type of rf_set_gain() to avoid unambiguous return with negative gains

* Add per-channel TX gain
 2020-06-19 11:00:12 +02:00
Francisco Paisana 52c6c6aafd add ifdef guards for NR code 2020-06-18 23:37:26 +01:00
Francisco Paisana 0938c447f7 fix compilation error 2020-06-18 23:37:26 +01:00
Francisco Paisana b68ef69ab4 fix comments and other minor issues 2020-06-18 23:37:26 +01:00
Francisco Paisana 468389997e fix header sn check 2020-06-18 23:37:26 +01:00
Francisco Paisana 0259d31b13 fix lack of final in pdcp virtual methods 2020-06-18 23:37:26 +01:00
Francisco Paisana eb69683dc3 fix lack of final in virtual methods 2020-06-18 23:37:26 +01:00
Francisco Paisana 42969ad992 add tb size as argument to gnb 2020-06-18 23:37:26 +01:00
Francisco Paisana 2f8dad03cc add rlc nr locking 2020-06-18 23:37:26 +01:00
Francisco Paisana f0874b780b add radio_base/null classes 2020-06-18 23:37:26 +01:00
Francisco Paisana 64e8f5e3ed update license year 2020-06-18 12:41:54 +01:00
Pedro Alvarez 9c1a7d2cf1 Removed get_bearer_status in PDCP. Renamed get_state/set_state to 
get_bearer_state/set_bearer_state.
 2020-06-18 12:13:57 +01:00
Pedro Alvarez 208a539499 Split PDCP tx_count state variable into tx_hfn and next_pdcp_tx_sn 
variables.
 2020-06-18 12:13:57 +01:00
Pedro Alvarez 08578a7331 Switched to use a struct to hold the PDCP entity state variables. Deleted some unecessary setters. 2020-06-18 12:13:57 +01:00
Pedro Alvarez 66d4f320e5 Added intereface to set PDCP state after reestablishment. 2020-06-18 12:13:57 +01:00
Pedro Alvarez 33567d81db Added interface to get internal PDCP state. 2020-06-18 12:13:57 +01:00
Pedro Alvarez 4093e75237 Starting to add getters and setters of the state in PDCP lte entity. 2020-06-18 12:13:57 +01:00
Xavier Arteaga 0e415260e9 SRSUE: scell_sync vector changed to map 2020-06-18 09:51:51 +02:00
Xavier Arteaga e0e8405285 SRSUE: initial scell sync 
SRSUE: SCell Synch feedbacks delay

SRSUE: Implemented SCell Radio offset correction
 2020-06-18 09:51:51 +02:00
Xavier Arteaga 5c0bb000ca UE DL does not complain if no grant is not found 2020-06-18 09:51:51 +02:00
Xavier Arteaga 8a774136de Radio: return error if a RF instance fails to open 2020-06-16 11:00:51 +02:00
Xavier Arteaga f04cf2090a Integrates number of samples in radio buffer 
Fix minor issue

Radio: Fix minor bug and add unit test
 2020-06-16 11:00:51 +02:00
Xavier Arteaga de230826b9 Added string helper for removing spaces and parsing list 
Fix

Fix string parser
 2020-06-16 11:00:51 +02:00
Xavier Arteaga 89b24b54e5 Refactored radio class for acommodating multiple RF devices 2020-06-16 11:00:51 +02:00
Andre Puschmann 1f73e6ae69 multiqueue: add option to create queue with non-default capacity 
this allows to create a queue that has a non-default capacity
currently this is 8192, but the value might now be suitable in some
cases like for TTI sync events
 2020-06-12 21:37:10 +02:00
Francisco Paisana 3c2e3dbdbf added latest mac nr updates 2020-06-11 15:50:36 +01:00
Francisco Paisana cc52edf820 added latest pnf/vnf api updates 2020-06-11 15:50:36 +01:00
Francisco Paisana 27e5d98ef9 added vnf phy nr 2020-06-11 15:50:36 +01:00
Francisco Paisana b05ce2fe57 added pnf_dummy test 2020-06-11 15:50:36 +01:00
Francisco Paisana 8a022fb35b fix noexcept declaration issue in gcc4.8 2020-06-11 14:25:21 +02:00
Francisco Paisana 6509399ed3 fix for move-only events 2020-06-11 10:37:35 +01:00
Francisco Paisana 12dda03bb8 add ability for fsms to self-trigger 2020-06-11 10:37:35 +01:00
Andre Puschmann 9f98bb3f54 disable prach_test_usrp compilation if no RF is selected 2020-06-11 11:07:06 +02:00
Francisco Paisana d859c33035 added check for UCI collision during DL scheduling for CA 2020-06-10 22:22:41 +01:00
Ismael Gomez 60b5fb9a74 Refactor variable name 2020-06-10 21:30:39 +02:00
Xavier Arteaga 0e5704731e Removed UHD unrelated changes 2020-06-10 11:44:44 +02:00
Xavier Arteaga 258f7a180c Improved PRACH test USRP 2020-06-10 11:44:44 +02:00
Xavier Arteaga cd463d1b87 UHD: Initial C++ porting 
UHD: cmakefix

x3
 2020-06-10 11:44:44 +02:00
Andre Puschmann 8512c10286 create simple helper method to log command line arguments 2020-06-09 20:55:38 +02:00
Xavier Arteaga 039f2164a6 Initial Sounding Reference Signals implementation 2020-06-08 09:33:51 +02:00
Francisco Paisana 613003ac53 add srsenb::rrc class 2020-06-05 15:10:11 +01:00
Ismael Gomez 84b84eaad6 Move search_in_common variable 2020-06-03 17:23:42 +02:00
Ismael Gomez 9b634b8d2a Search DCI in UE space before common to avoid DCI size ambiguity. Fixes #1398 2020-06-03 17:23:42 +02:00
Francisco Paisana c6dde24476 avoid blocking when new procedure is launched from within proc::then call 2020-06-02 22:42:53 +01:00
Pedro Alvarez 960c0e97cd Added handling of RRC re-establishment to srsENB. 
* Added the appropriate code for handling and sending the
   re-establishment procedure messages to rrc_ue.c/.h.
 * Triggered RRC reconfiguration after the reception of RRC
   re-establishment complete
 * Refreshed K_eNB at the reception of re-establishment
   request
 * Changed the mapping of TEIDs to RNTIs in the GTP-U layer,
   as the RNTI might change with reestablishment.
 2020-06-02 11:19:17 +01:00
Daniel Willmann 0e99e2f6eb srsue: Refactor definition to live in its own .cc file 2020-06-02 10:05:38 +02:00
Francisco Paisana 452c043370 created a global map of lcids to srbs/drbs for NR 2020-05-29 14:11:23 +01:00
Andre Puschmann 9fd327fcac soapy: use SoapySDRDevice_enumerateStrArgs to create Soapy args object 
this allows to use Soapy device parameter when creating the device
 2020-05-28 14:17:20 +02:00
Andre Puschmann ff508a2c6b npdsch_ue: add rf_dev param and make remove samp rate check 
the remove of the samp rate check was needed on the PlutoSDR
because the result would not be the exact value that was
asked for
 2020-05-28 14:17:20 +02:00
David Rupprecht 61b69a0dab security: refactor code, fix race in eia1 
* state funktion for eia1 (mitigate race condition)
* Extra file for snow3g
* just use mbedtls aes
* ref specification
* adding const keyword to security functions
 2020-05-28 14:02:14 +02:00
faluco 617cad58ab Fix identation of arrays. 2020-05-28 11:27:15 +02:00
faluco cf5b321fb5 Replace magic numbers with macro constants. 
Adjust comments to refer to these macros.
 2020-05-28 11:27:15 +02:00
faluco ac3b7ed54c Move static array inside function as it is only used in there. 2020-05-28 11:27:15 +02:00
faluco 9484db8a90 Added header comments to srslte_sfidx_tdd_nof_X family of functions. 
Fixed a comment referring to an older TS release.
Remove elses after returns.
 2020-05-28 11:27:15 +02:00
faluco 8c59606d6f Add comment header to srslte_sfidx_tdd_type. 
Remove else after return.
 2020-05-28 11:27:15 +02:00
faluco 7354f49fe5 Added explanatory comments to TDD phy structs and enums. 2020-05-28 11:27:15 +02:00
Xavier Arteaga 9f5aef30e6 SRSENB: fix DL ACK decoding 2020-05-28 10:29:51 +02:00
Francisco Paisana 026628a84f use of reestablishment method to reset the RLC bearers during handover 2020-05-26 14:46:41 +01:00
Francisco Paisana edba7f57e4 corrected mac_nr_pdu includes 2020-05-26 10:02:08 +01:00
Ismael Gomez 270c7ce9dc Separate PHY interface to add rnti and pregenerate sequences. Calculate the sequences on the reception of ConnectionSetup instead of PRACH 2020-05-25 13:12:19 +02:00
Francisco Paisana d7c7bb382a fix license year 2020-05-25 11:48:16 +01:00
Francisco Paisana 2da8c923b1 removed commented code and fixed interfaces 2020-05-25 11:48:16 +01:00
Francisco Paisana b4b5cd7cd6 added nr gnb and ue interfaces 2020-05-25 11:48:16 +01:00
Ismael Gomez a1f0f8de35
Add callback to RLC to indicate BSR for TX and reTX queues (used in ENB) (#1361) 2020-05-22 11:20:33 +02:00
Francisco Paisana 8e9da9d12e avoid creating unused static variable to avoid linking issues 2020-05-21 16:45:16 +01:00
Andre Puschmann 1eaa99530f rlc_am: tiny refactor of rlc_amd_pdu_header_t 
mainly turning header into proper class and adding default init value
 2020-05-21 10:33:55 +02:00
Andre Puschmann 8756d14660 enb_interface: add default initialize to zero 2020-05-21 10:32:31 +02:00
Francisco Paisana c87197dd4e fix deadlock in multiqueue reset method. 2020-05-20 11:04:16 +01:00
Xavier Arteaga 20db13abc7 SRSUE: fix condition number calculation 2020-05-19 22:31:56 +02:00
Xavier Arteaga 9d5c2d70df SRSENB: Fix PHY reconfiguration for HO 
Minimal aesthetic change
 2020-05-19 16:38:55 +02:00
Pedro Alvarez 6ce33c3812 Small compilation fixes for GCC 10.1 2020-05-18 18:08:45 +01:00
Francisco Paisana e8aff22e1b using new rrc obj id util methods in handover code 2020-05-14 20:51:16 +01:00
Francisco Paisana f43985b6cd small updates for testing handover and configuring the rrc 2020-05-13 21:02:53 +01:00
Francisco Paisana 598bad1f0e changed rrc ue cfg files names 2020-05-13 12:39:58 +01:00
Francisco Paisana d43448e8a1 created security cfg handling class for rrc ue and refactor bearer_list handling 2020-05-12 17:28:11 +01:00
Francisco Paisana ca0db7fffe created generic methods to apply toaddmodlist and removelists. 2020-05-12 14:17:57 +01:00
Francisco Paisana c65c081b51 created separate files to handle rrc bearers 2020-05-12 14:17:57 +01:00
Francisco Paisana 65abcd2903 use true_type to represent success 2020-05-11 16:08:20 +01:00
Francisco Paisana 791d84e639 created error_type and cleaned up expected 2020-05-11 16:08:20 +01:00
Francisco Paisana 9a7f48b6a5 fix gcc4.8 compilation issue 2020-05-11 16:08:20 +01:00
Francisco Paisana 975d004224 fix compilation error 2020-05-11 16:08:20 +01:00
Francisco Paisana 0f49cb7357 abort if bad access 2020-05-11 16:08:20 +01:00
Francisco Paisana a2b76a4a5f use references rather than pointers 2020-05-11 16:08:20 +01:00
Francisco Paisana a88bffa5d5 created expected type and respective test 2020-05-11 16:08:20 +01:00
Andre Puschmann bdd97ca25f pdsch_enodeb: remove check in while-loop 
this check is always true since the false case is caught
before and the application is closed()
 2020-05-11 14:49:56 +02:00
Fabian Eckermann 447b989aad fix parsing of zmq arguments 
Use the return value of parse_string function to determine whether a parameter was found.
I experienced issues when the rx_type was set, but the rx_format was not. This led to "Unsupported sample format pub" as the tmp variable is still set to the value of the rx_type.
 2020-05-09 12:23:07 +02:00
Ismael Gomez 847366bcdb Don't set high master clock rate for 75 PRB 2020-05-08 22:10:28 +02:00
faluco 3fa5926cd5 Fix SIMD neg operation which was inverted. 
Re-enable -Werror.
 2020-05-08 21:17:05 +02:00
faluco 4fb290ea27 Remove ifdefs now that this SIMD op is supported. 2020-05-08 21:17:05 +02:00
faluco c39ea2f583 Adjust possible type mismatch. 2020-05-08 21:17:05 +02:00
Andre Puschmann 189685b6f5 demod_soft: fix clang warning in demod NEON code 
Try to bring back compilation.
Disable temporarily Werror.

Re-enable two simd functions.
 2020-05-08 21:17:05 +02:00
Andre Puschmann f67524707d neon: add srslte_simd_b_neg() 
clang complained about an uinit var that is returned and it turned
out that we don't even implement that function in NEON.

I've found a nice MIT-licensed header that was easy to integrate.
 2020-05-08 21:17:05 +02:00
Andre Puschmann 53ab53ee77 ue_sync: fix tracking in GNSS_SYNC mode 
this fixes the subframe-accurate rx in tracking mode.
previously we've only alligned to the next subframe start in find and
when there was a single overflow we've lost the track.

this patch calculates the offset in samples to the actual start of the
subframe (full ms of the receive timestamp) vs. the actual
receive timestamp and uses the value as the "next_rf_sample_offset"
to realign on the next receive
 2020-05-08 14:33:12 +02:00
Andre Puschmann 14143f8560 pssch_ue: fix memory leaks and operation with RF 
- add missing free's for ofdm and chest objects
- fix sf_idx setting
- add getchar() when plotting from file to observe output
 2020-05-08 14:33:12 +02:00