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381 Commits

Author SHA1 Message Date
Ismael Gomez 76bfc78147
Fix issues with Sounding-RS (#1761) 
* Fix deadlock caused by update_measurements calling in_sync

* Fix overlapping SRS condition

* Do not use shortened PUSCH in transmissions and retx from RAR

* Revert "Fix deadlock caused by update_measurements calling in_sync"

This reverts commit f58c8c8c766f8f95baa3a3bf8287d8e25b2057ba.
 2020-09-24 22:25:24 +02:00
Pedro Alvarez 86f4d469c6 Added some functions to save and restore AS keys for the case of failed handover in the USIM 2020-09-24 13:30:08 +01:00
Andre Puschmann 1afc137032
[REBASE] Make PHY non-blocking and fefactor HO procedure (#1753) 
* Make PHY non-blocking and fefactor HO procedure

* makes entire PHY non-blocking through command interface
* adds dedicated queue for cell_search/cell_select commands
* refactor HO procedure to run faster, in one stack cycle. Looks closer to the specs
* force ue to always apply SIB2 configuration during reestablishment
* Run update_measurements in all workers

Co-authored-by: Ismael Gomez <ismagom@gmail.com>
 2020-09-22 21:47:16 +02:00
Andre Puschmann 6a56476b2a rlc: increase RLC Tx SDU queue 
the Tx SDU has been set to 128 PDUs because this gives approx.
150kByte UL buffer state (max value for Rel 8 BSR).

Previously, however, we've always reported too much pending UL
data because we weren't subtracting the transmitted data from
the reported data.

with this newer BSR reporting, however, even with full buffers we would
never report full buffers because the queues size is too short.

This seems to cause issues for iperf TCP sessions not resulting
in full DL rate, see isse #1703. It seems that the TCP bandwitdh
probing works better with larger buffers (in our case this can
only be achieved with more PDUs in the pool).

This should fix #1703
 2020-09-08 22:27:21 +02:00
Ismael Gomez f49fbd6d02
Fix the order of HO/reest measurement actions (#1696) 2020-09-04 12:18:12 +02:00
Xavier Arteaga af8898943f SRSENB: implement console cell_gain command 
SRSENB: fix 5GNR compilation

SRSENB: fix override methods
 2020-09-01 09:37:52 +02:00
Francisco Paisana 92221eb780 update of rrc_interface_mac to remove signal from mac to rrc that RA failed in case of handover failure 2020-08-29 20:06:08 +01:00
Ismael Gomez a4835dd2c8
More accurate MCS reduction when PUSCH carries UCI (#1630) 2020-08-25 22:30:35 +02:00
Francisco Paisana bb5dd92dca implemented s1 handover cancellation procedure to force the target enb to release the ue ctxt 2020-08-21 00:05:58 +01:00
Francisco Paisana 8c9e596f89 refactored s1ap handover request interface. cleaned up rrc tenb s1 handover code 2020-08-21 00:05:58 +01:00
Francisco Paisana 5d1343fe75 implemented S1 bearer status transfer 2020-08-18 13:55:17 +01:00
Francisco Paisana db8af399f8 extended rrc tenb s1 handover test. implemented layer reconfig during s1 handover 2020-08-18 13:55:17 +01:00
Francisco Paisana 7605c7df23 added s1ap handover notification, fixed s1ap asn1 bug, and fixed bad fields for admitted erabs in ho req ack 2020-08-18 13:55:17 +01:00
Francisco Paisana 26f46ea067 add S1 Handover Request handling in target eNB 2020-08-14 14:28:56 +01:00
Ismael Gomez 382811e10e
Update S1AP RNTI context when doing Reestablishment (#1582) 2020-08-12 23:48:20 +02:00
Ismael Gomez dda91b14f7 Remove duplicate add_rnti() function since already done in set_config 2020-07-27 17:58:06 +02:00
Andre Puschmann 9550bd3ef8 rlc: revisit interface for MAC and RRC 
* add locked and unlocked version of has_data() since one is
  called from stack and one from PHY threads

* add comments in each interface section as to why locking
  is required or not

* remove RLC rwlock when not required

* move calls only used by RRC to RRC section
 2020-07-21 11:56:43 +02:00
Francisco Paisana 58c4bcf288 reduce mcs for UL grants carrying UCI 2020-07-21 10:51:11 +01:00
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
Francisco Paisana 5e06430455 removal of stack handler interface 2020-07-13 11:19:25 +01:00
Francisco Paisana fe8f8be62d apply separate cqi configurations to scells 2020-07-09 18:56:01 +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
Ismael Gomez 493b7ea2da Remove SNR threshold based link failure detection 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 42969ad992 add tb size as argument to gnb 2020-06-18 23:37:26 +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
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 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 89b24b54e5 Refactored radio class for acommodating multiple RF devices 2020-06-16 11:00:51 +02:00
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
Ismael Gomez 60b5fb9a74 Refactor variable name 2020-06-10 21:30:39 +02:00
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
Francisco Paisana 452c043370 created a global map of lcids to srbs/drbs for NR 2020-05-29 14:11:23 +01:00
Francisco Paisana 026628a84f use of reestablishment method to reset the RLC bearers during handover 2020-05-26 14:46:41 +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
Andre Puschmann 8756d14660 enb_interface: add default initialize to zero 2020-05-21 10:32:31 +02:00
Xavier Arteaga 9d5c2d70df SRSENB: Fix PHY reconfiguration for HO 
Minimal aesthetic change
 2020-05-19 16:38:55 +02:00
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
Ismael Gomez 8c82203c74 Removed unused pregenerate option 2020-05-01 21:05:00 +02:00
Xavier Arteaga 2569a94deb Radio Tx handles more overlap/gap cases 2020-04-30 09:51:19 +02:00
Francisco Paisana 615bd54fd5 fix uninit var 2020-04-29 11:17:00 +02:00
Francisco Paisana f8c6f55cac fix uninit var usages and signed bit manipulations 2020-04-29 11:17:00 +02:00
Xavier Arteaga d7e7399e7b srsENB: PHY configuration in two stages 2020-04-27 21:03:44 +02:00
Xavier Arteaga b9583d4182 Fix Extended CSI request bits in DCI 2020-04-27 21:03:44 +02:00
Xavier Arteaga 58803d1b3e Added UL EARFCN map and UE PHY interface cleanup 2020-04-23 09:00:45 +02:00
Xavier Arteaga 89dcd6339f More LGTM fixes 2020-04-22 18:01:43 +02:00
Xavier Arteaga 77d5dedddc Fix LGTM warnings and recommendations 2020-04-22 18:01:43 +02:00
Francisco Paisana 5db2c62530 comments for handover commands 2020-04-22 13:34:37 +01:00
Francisco Paisana 7a132f9ccd more enb interface comments 2020-04-22 13:34:37 +01:00
Francisco Paisana 0526ae8ab1 updated rrc mobility parsing. added some utility methods 2020-04-22 12:57:11 +01:00
Francisco Paisana 64557740fc use mac_buffer_state interface to schedule CEs in scheduler 2020-04-22 11:34:08 +01:00
Francisco Paisana ec94819f08 changed mechanism for conres ce scheduling to be controlled by rrc 2020-04-22 11:34:08 +01:00
Francisco Paisana d183d64409 added allocate_rnti method to mac. Useful both during PRACH and handover UE resource allocation 2020-04-22 11:34:08 +01:00
Francisco Paisana 28467d568d eliminated old way to schedule tasks using the heap 2020-04-17 11:38:24 +01:00
Xavier Arteaga 04c47e2b47 Added srsue argument for enabling EVM calculation 2020-04-15 11:39:57 +02:00
Andre Puschmann d35c9e2b89 nas: add support ot UE test loop mode B 
extend GW-NAS interface to signal test mode activation.
The method is a noop in the normal GW but is implemented in
the TTCN3 DUT according to TS 36.509 for Mode B
 2020-04-10 21:18:43 +02:00
Xavier Arteaga 5b7493cab5 Added 256QAM modulation tables to scheduler 2020-04-10 17:48:53 +02:00
Francisco Paisana a2ade9edd1 break down rrc_interface_types.h into multiple files. moved pdcp_config.h to same folder 2020-04-09 10:10:04 +01:00
Francisco Paisana 2950d26daa remove asn1 namespace from srsue files 2020-04-09 10:10:04 +01:00
Xavier Arteaga 25312e81b4 SRSUE: cell select RRC MEAS CFO is carried to PHY Cell object 2020-04-02 13:52:23 +02:00
Xavier Arteaga 6d355ab61e SRSUE: Fix HO initial CFO 2020-04-02 13:52:23 +02:00
Francisco Paisana 30ae2226c1 common interface for stack multiqueue tasks, background tasks and timers 2020-03-31 13:42:06 +01:00
Andre Puschmann 94c6034339 nas: rename start_attach_request to start_attach_proc 
this is to better differentiate from "send_attach_request" that
only packs and send the actual attach request message. The
entire attach procedure may include PLMN search, etc.
 2020-03-30 11:23:40 +02:00
Francisco Paisana e91a7ea513 removed stack-mac interface dedicated methods. We use now the task dispatch methods instead 2020-03-22 11:50:58 +00:00
Francisco Paisana de03c96c3b mac::process_pdus now uses the stack task dispatch interface 2020-03-22 11:50:58 +00:00
Francisco Paisana de3c28e52d added task dispatch capabilities to stack interface 2020-03-22 11:50:58 +00:00
Francisco Paisana 46a1be3e76 updated mac-rlc interface to use unique_byte_buffer 2020-03-22 11:50:58 +00:00
Francisco Paisana 45bc123967 remove manual tti counters from the rrc 2020-03-19 21:52:53 +00:00
Francisco Paisana 770f04b92a the rrc now only works with the stack latest tti, instead of mac's tti 2020-03-19 16:47:55 +00:00
Francisco Paisana d3f49d0e3c changed interface sync-stack to allow tti jumps > 1 2020-03-19 16:47:55 +00:00
Francisco Paisana ede09cb9b2 added dynamic CFI capability to the eNB scheduler 2020-03-17 22:06:37 +00:00
Xavier Arteaga e832769ae6 Updated copyright 2020-03-16 11:26:06 +01:00
Xavier Arteaga 5af89513eb use double precission for frequency in srsue and srsenb 2020-03-13 14:01:58 +01:00
Ismael Gomez e8b8c9922e
Add RF per-channel frequency band constraints (#1026) 2020-03-12 23:06:09 +01:00
Francisco Paisana 7548402632 change scell activation interface to use arrays. Added a method to the scheduler to get the current set of activated carriers 2020-03-11 21:56:33 +01:00
Xavier Arteaga 65711d06dc PRACH TA base default to 0 and apply clang-format 2020-03-11 16:58:00 +01:00
Xavier Arteaga e8f9bfc6ba Addition of PRACH TA correction 2020-03-11 16:25:56 +01:00
Andre Puschmann a8acd235f6 extend eNB MAC to support multiple CC per UE 
- add tx/rx softbuffers for each CC that a UE might have
- make sure to call assign correct buffers when iterating
  over the CC for UL/DL grant assignment
 2020-03-11 10:16:23 +01:00
Pedro Alvarez 96c82b3fc6 Moved PDCP configs to pdcp_config.h. Added `as_security_cfg_t` structure to hold access stratum keys. 
Refactored PDCP, RRC and USIM accordingly.
 2020-03-11 09:00:38 +00:00
Francisco Paisana 9ad80ee29f added initial_dl_cqi to the enb rr.cfg parser 2020-03-10 22:06:07 +00:00
Ismael Gomez bf6db92f04 Reset SRS properly on PHY defaults 2020-03-10 17:25:48 +01:00
Andre Puschmann f2e1bfa699 refactor naming for s/p/cell structs and {enb,ue}_cc_idx 2020-03-10 15:01:00 +01:00
Francisco Paisana f3c3c52fcd added ue_cc_idx to dci allocation 2020-03-10 14:17:49 +01:00
Andre Puschmann 2edecea33e fix SIB transmission for CA 
Avoid double buffering of SIBs in MAC as this would require one buffer for each CC.
Instead, use byte_buffer managed by RRC that contains packed SIBs to avoid
double memcpy for each SIB tx. Only use MAC provided buffer in error case.

Also avoid MAC calling RLC for each SIB and call RRC directly.
 2020-03-09 14:18:09 +01:00
Andre Puschmann 120ad76c63 refactor cell param handling and fix SIB transmissions 
- move cell specific eNB params to cell list in rr.conf
- make sure DL EARFCN and DL freq can be used to manually overwrite a single cell config
- fix SIB packing and transmission for multi cell configs
- introduce cell list to MAC
- adapt default enb.conf.example and rr.conf.example
 2020-03-06 16:20:44 +01:00
Ismael Gomez 4e12405fff
Remove radio_multi class and organize channels, ports and carrier buffers (#1019) 2020-03-06 15:26:48 +01:00
Xavier Arteaga da701cd82b SRSENB: Added PUSCH TA and EVM measurement. Some more PHY cleanup. 2020-03-06 13:58:49 +01:00
Pedro Alvarez bd3598f774 Moved srsEPC to the new S1AP library. Deleted liblte_s1ap.cc and liblte_s1ap.h. 2020-03-06 11:57:07 +00:00
Andre Puschmann 664170fec6 pcap: add CC index when writing PCAP 2020-03-05 20:46:14 +01:00
Pedro Alvarez afc209711c Fix jump depending on uninitialized variable in srsenb::sched_ue::set_bearer_cfg_unlocked 2020-03-04 22:03:17 +01:00
Francisco Paisana fed06138b9 moved rach_detected to stack thread. Created a more friendly interface to enqueue tasks in stack 2020-03-03 21:03:21 +00:00