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315 Commits (fda1d040e7ad1ba0930576307177917274c10534)

Author SHA1 Message Date
Francisco Paisana 2fb830fcfa moved cell search to background task thread pool, and provided a stack interface to rrc to call "start_cell_search". Once completed, the background task signals back to RRC 5 years ago
Andre Puschmann c7f0caa24a add TTI field to MAC dl/ul grants and fix PCAP to include TTI 5 years ago
Francisco Paisana 6db0e474be moved RA waiting procedure to a background task of the stack thread pool 5 years ago
Francisco Paisana fc9bb3c934 removed rrc asn1 header include from the ue_interfaces and phy 5 years ago
Andre Puschmann c99d5077c8 add RLC UM NR transmitter 5 years ago
Ismael Gomez 0984debe1b
Fix issues with RLF in B210 and X300 (#669) 
* Calling tx_end() from radio_reset() causes long execution time in B210. Using boolean to call later instead. Fixes RLF failing in B210. Checked in X300

* Fix issue #655
 5 years ago
Francisco Paisana 946ead06e8 using an interface between the stack and lower mac to process demux pdus. 5 years ago
Ismael Gomez 6bb0790cf1
Fix coverty issues (#652) 5 years ago
Xavier Arteaga 1a567a764e SRSUE: Call Radio tx-end when PHY is reseted and removed redundant attribute is_start_of_burst. 5 years ago
Andre Puschmann 49279c89d8 send DL-DCCH on SRB2 after it has been established 5 years ago
Harald Welte 2e426948fe [ENB] Add CFSB support 
This commit introduces CSFB (circuit switched fall-back) capabilities to
srsLTE.  Actually, all the eNB has to do is to send a
RrcConnectionRelease with the RedirectedCarrierInfo IE.

The MME triggers this by the S1AP CS Fallback Indicator IE, which may
be present either in the Initial Context Setup Requst or in the
UE Context Modification Request.

As srsLTE has no support for the UE Context Modification Request at all
yet (!), basic support for this message is introduced in this patch.

Both Mobile Originated and Mobile Terminated CSFB with a coupel of
different UE models have been verified using this patch in a setup
consisting of srsENB attached to an undisclosed EPC connected via SGsAP
to a complete  Osmocom 2G network.

Closes: #358
Closes: #363
 5 years ago
Ismael Gomez bfddc55148
RRC-PHY interface (#639) 
RRC-PHY interface refactor. Moved RRC-MAC interface to rrc_asn1_utils and created RRC-PHY interface also in rrc_asn1_utils. All ASN1 includes should be made from rrc_asn1_utils only keeping ue_interfaces clean of ASN1

Tested with different common and dedicated configurations (64QAM UL, 256QAM, CA, SRS enabled/disabled, etc)
 5 years ago
Francisco Paisana 116dc0a57b fixed group extensions, removed extra presence flag for copy_ptr<T> types as it was just a source of bugs. 5 years ago
Francisco Paisana c9d3b61038 added resumable procedures to make RRC and NAS non-blocking 5 years ago
Pedro Alvarez 6efa944b5e Removed srslte prefix from pdcp_config_t 5 years ago
Pedro Alvarez 457f35699d Reverted back to a single config structure between PDCP NR and PDCP LTE. 5 years ago
Pedro Alvarez c9e99443d8 Adding PDCP NR Tx test. 5 years ago
Pedro Alvarez 005d03cb1a Starting to split pdcp_entity into pdcp_entity_lte and pdcp_entity_nr to support NR PDCP 5 years ago
Francisco Paisana 424876c5e4 added DL TTI mask for MBMS 5 years ago
Ismael Gomez 8c41625599 Add RLC suspend and resume 5 years ago
Xavier Arteaga 20823e191d SRSUE: Added UL force amplitude optional parameter 5 years ago
Andre Puschmann 4e86b2f6b2 introduce layerd architecture we use for UE to eNB 
- this allows flexible use of different PHYs and radios
- use common radio_multi (moved to lib)
 5 years ago
Francisco Paisana 92b4b168fe added default rlc um and am in the interface as factories 5 years ago
Francisco Paisana 58e2e51044 removed rlc_interfaces. The rlc_cnfg types are now part of the rrc_interface_types. Removed implicit RB initialization in the RLC. 5 years ago
Francisco Paisana bb0dbf0f1c created a asn1 utils with helper functions and types related to the asn1. These types/functions will help isolate the rrc_asn1 lib from most of the layers, reducing this way the compile times, and leading to better isolation. This will also make the transition to NR smoother. I removed the asn1 types from the NAS and USIM interface so far. 5 years ago
Xavier Arteaga 87433c83da SRSUE: 64QAM R8 compatible 5 years ago
Pedro Alvarez 8f5ad55c4a Added attach request as a UL info trasnfer in the UE. Added interface to remove eps bearer map when going idle. Fixed bug in GW in assignment of IPv4 addresses. UE seems to rebound from the service reject now. 5 years ago
Andre Puschmann e0a28cf4c0 simplify PDCP init and also bypass it for SRB0 on eNB 5 years ago
Andre Puschmann 0ef96f789b bypass PDCP for SRB0 processing chain 5 years ago
Francisco Paisana ce29ed545d moved mac thread to the stack. Protect the interface of the stack with PHY and gateway via a queue of tasks 5 years ago
Francisco Paisana 10a56e2a84 moved GW out of the UE stack. This is important to keep concurrency out of the stack once it becomes single-threaded 5 years ago
Xavier Arteaga 1f4cf8121b SRSUE: Initial UL channel simulator 6 years ago
Andre Puschmann 2b7b4d0e7e remove hard-coded LCID for dedicated bearer in GW 6 years ago
Pedro Alvarez 2723aa9b12 Added EPS bearer id to apply_tft interface. Sending packets to the correct LCID if they match the packet filter. 6 years ago
Pedro Alvarez a7e0a0624b Starting to add interface apply_traffic_flow_template between NAS and GW. 6 years ago
Francisco Paisana 415d3418b6 reorganized enb to mirror ue director/class structure with a stack class 6 years ago
Pedro Alvarez d67d18cc6b Removing deplicated error codes. 6 years ago
Xavier Arteaga bd3ec34f7b SRSUE: Apply CLang format phy args structure 6 years ago
Xavier Arteaga fd3671a7e5 SRSUE: Enable AGC 6 years ago
Ismael Gomez c2e9817f41 Possible solution to RLC Reestablishment 6 years ago
Ismael Gomez 14b526f2aa Add PDCP per-bearer reestablish 6 years ago
Andre Puschmann 3f613d7183 nas/gw/rrc: make LCID for DRB dynamic 
- add interface to RRC to allow NAS to query the DRB for a given
  EPS bearer id
- extend interface for NAS to setup GW to also pass LCID of bearer
- in NAS, use this new interface to pass actual LCID of the default
  DRB when creating the TUN device
 6 years ago
Xavier Arteaga 9ab2b2de81 SRSUE: Created delay channel emulator and added fading to the UE 6 years ago
Andre Puschmann 20c9f4687c remove duplicated code mac_cfg_t 6 years ago
Xavier Arteaga 7629863c5a SRSUE MAC: 36.331 v10 9.2.2 MAC main config defaults does not include RACH 6 years ago
Xavier Arteaga 080b4a327c SRSUE: Refactored asynchronous cell and ue_radio. CA Fixed. 6 years ago
Andre Puschmann 65f50cd7ba introduce new UE layer design 
- abstract UE object now consists of a radio, a PHY, and a stack layer
- add new stack abstraction layer that combines MAC, RLC, RRC, PDCP, NAS and GW
- PHY layer now has a single stack interface and does not talk to MAC and RRC seperatly
 6 years ago
Francisco Paisana 3bedc93ba5 added _t to unique_byte_buffer type 6 years ago
Francisco Paisana f469e2178b replaced byte_buffer_t allocated by the buffer pool for unique_byte_buffer which is safer and easier to use 6 years ago
Francisco Paisana 0976ea6f27 created a unique byte buffer that automatically deallocates 6 years ago
Francisco Paisana 7be183c223 rework scheduler 6 years ago
Andre Puschmann e77adbe5a5 fix uninitialized members in ue_interface 6 years ago
Andre Puschmann 4b01a2e4a0 update copyright notice 6 years ago
Ismael Gomez 7780b1aba5 add tdd/ca support 6 years ago
David Rupprecht b84e49310e Enable encryption in reconfiguration and after security mode command (NOT TEST) 6 years ago
David Rupprecht eb3a83ac45 User Plane key in configuration interface 6 years ago
Pedro Alvarez ca603810ce Adding Downlink data notification and paging functionality to the EPC. 
This entails:

  * Adding S1AP paging messaging to the MME.
  * Adding the Downlink Data Notification, Donlink Data Notification Acknoledgment, and Downlink Data Notification Failure Messages.
  * Adding the logic at the GTP-U to detect that Downlink Data notification needs to be sent.
  * Proper handling of the new GTP-C messages at the MME GTPC and SPGW GTPC classes
  * Add queuing mechanisms at the GTP-U while waiting for paging response. Queue is flushed when paging fails (timeout or other).
  * Make sure eNB's SCTP information is properly stored.
  * Make sure UE's GUTI information is properly stored.
 6 years ago
Pedro Alvarez 1db959c661 Added NAS timer functionality to the EPC. This entails: 
* Adding timer creation at NAS using timerfd_create
  * Adding the ability to add and remove the timer file descriptor to the MME main select loop
  * Adding the ability to the MME for the NAS to check if a timer is running
  * Adding the timer expiry handling functionality at the MME
 6 years ago
Pedro Alvarez 5f7b6ba79e Split GTP-C and GTP-U functionality into seperate classes in the SPGW. Added GTP-U specific logging in the EPC. Added handle_s11_pdu function to both the MME GTP-C entity and the SPGW GTP-C entity. 6 years ago
Pedro Alvarez add60c1288 Applied clang-format to the EPC. 6 years ago
Francisco Paisana 0204db2e12 new asn1 rrc library 6 years ago
Andre Puschmann d6196ba234 simplify RRC-NAS interface and only have msg as param (RRC selects LCID) 6 years ago
Andre Puschmann c3441046c9 simplify RLC buffer status query procedures 
- add a simple and low-overhead has_data() method to check whether
  an RLC entity has data to transmit or not
- use this method for all calls that are actually not interested
  in the amount of data to send
- use the more expensive get_buffer_state() for all cases where
  the actual size of the buffer is of importance
 6 years ago
Pedro Alvarez dc727a192b Changing way UL NAS count is used to generate the K_enb. 6 years ago
Andre Puschmann db910cb84b add CSV metrics for eNB 6 years ago
Andre Puschmann 8a1368c8d6 send connection reject if MME isn't connected 6 years ago
Andre Puschmann 0af19b070c add function to query if RLC bearer exists to UE interface 6 years ago
Andre Puschmann 1ed225a10b add getter for IPv4 and IPv6 addresses 6 years ago
Pedro Alvarez 5c29dba741 Changed Interface between NAS and GW to avoid the GW start function being called twice in IPv4v6 mode. 6 years ago
Pedro Alvarez ac1c300126 Adding the ability to set the interface local link IPv6 address. 6 years ago
Pedro Alvarez 8dc029cc47 Merging next into NAS cleanup. 6 years ago
Andre Puschmann 184539b87d add LCID change API to UE interface, add method to reestablish single RLC bearer 6 years ago
Ismael Gomez bc9d342959
New optimization on the PHY for both UE and eNodeB (#251) 
* New parallel Turbodecoder implementation in SSE/AVX 16-bit and 8-bit

* Optimised UL Interleaver

* Include TB CRC calculation in FEC encoder

* New threading priorities
 6 years ago
Pedro Alvarez 0d80ae795b Added IMSI attach from unknown UE as a static function. 6 years ago
Pedro Alvarez 860e1b5491 Changing Handling of initial UE NAS messages to use static methods. Handling of unknown GUTI attach request should be ok. 6 years ago
Pedro Alvarez 93222f582c Changed authentication response to use downlink_nas_transport(). 6 years ago
Pedro Alvarez f6b8982939 Moved most of the GUTI attach to nas.cc. 6 years ago
Pedro Alvarez 7077530a29 Merge branch 'next' into nas_cleanup 6 years ago
Andre Puschmann f56592b0fe add getter for PDCP ul/dl counter 6 years ago
Andre Puschmann 91492b87ef add del_bearer for RLC/PDCP 6 years ago
Andre Puschmann 3b8371d090 add detach support (for switch off) 6 years ago
Andre Puschmann ee5b055829 rename pdcp function for GW to is_lcid_enabled() 6 years ago
Andre Puschmann b8438e9cc3 extend PDCP interface to allow non-blocking write of SDUs 6 years ago
Pedro Alvarez de8679b536 Continuing to cleanup. Starting to compile again. 6 years ago
Pedro Alvarez f03967776a Continuing to clean nas.cc 6 years ago
Pedro Alvarez b25c12a084 Fixing nas.cc 6 years ago
Pedro Alvarez 85672d4a3f Fixing up s1ap.cc 6 years ago
Pedro Alvarez 3663d59920 Starting to add s1ap_interface_gtpc and s1ap_interface_nas. Adapting send initial context setup request accordingly. 6 years ago
Ismael Gomez 589e569ce9
Changes on srsENB mutexing logic to fix general race condition and deadlock issues (#229) 
* fixed some issues with the UL scheduling

* Hack to fix UL scheduler

* minor fix

* Cleaned up code and fixed issue with the update_allocation function

* fixed the console printing in the enb

* log/console fix

* fixed the log print

* added a normalization factor

* RLC: entity uses dynamic instances. Simplified stop/reset/reestablish procedure. Added non-blocking interface

* Limit decimals in metrics stdout

* Changed mutexes to rwlock in RLC/RRC/MAC/PDCP to fix race conditions when removing users

* Fix deadlock bug for MIMO

* Remove headers

* Fix missing unlock causing overflows

* Do not decrease CQI when PUCCH (this is a temporal fix, requires to reduce the maximum MCS)

* Fix mutex unlock in worker

* Configurable RLC tx buffer. Default to 512 for enodeb

* Check NULL SDU in write_sdu()

* Protect RLC objects and tx_queue from being destroyed while using it

* Remove superfluous code

* Disable SIB logging

* Fix block_queue for enb
 6 years ago
Ismael Gomez 8c92f3fddc
Improvements and fixes on srsENB scheduler (#228) 6 years ago
Pedro Alvarez 66db3deeb4 Starting to add Bearer QoS parameter to create session request. 6 years ago
Andre Puschmann 064d7bd2dc use original UE establishment cause in S1AP initial UE message 6 years ago
Ismael Gomez 6120f20290
Changes in RRC and S1AP to make enb more robust on UE add/rem operations. 
* Consolidated functions in S1AP

* Fixed ASAN in some GCC

* Stop quicker the enb

* Minor typo edit

* Fixed mutexing issues in RRC and possibly RLC/PDCP when adding/removing users
 7 years ago
Andre Puschmann 61d525ea80 Merge branch 'next' into embms_merge_final 7 years ago
Ismael Gomez 467ba4e326 Average sampling offset estimate before adjusting timing to be more robust against EVA and ETU fading 7 years ago
Andre Puschmann 9ce3be974a Merge branch 'next' into embms_merge_final 7 years ago
yagoda e4c3f0bc30 adding mbms-gw and mch generation tables 7 years ago
yagoda ec918eab76 adding support for embms in common functions and interfaces 7 years ago
Andre Puschmann 3fe6dad323 adding hard SIM card support using PCSC 7 years ago
Ismael Gomez ffb8337be7 Merge branch 'next' into sync_states 7 years ago
Xavier Arteaga 15173c5c30 Added gaussian filter configuration options in srsue.conf 7 years ago
Ismael Gomez edd9cbf4dc Merge branch 'next' into sync_states 7 years ago
David Rupprecht 06d4559294 Change include path absolut to project dir 7 years ago
David Rupprecht 9d71bec7b6 Unified include guards 7 years ago
Ismael Gomez b3be54b274 Attach and paging ok. Reselection on IDLE not working 7 years ago
Ismael Gomez f88f465c97 Refactored NAS/RRC/PHY cell_search/selection procedures 7 years ago
Ismael Gomez 86d4ce52e0 Make intra-frequency measurement period/length a parameter 7 years ago
Ismael Gomez f9d770e50e Added option for Doppler frequency correction 7 years ago
Ismael Gomez c2098ad626 Removed unused sample offset correction 7 years ago
Ismael Gomez 3adc6b5cbc
Merge pull request #158 from softwareradiosystems/csi 
Csi
 7 years ago
Ismael Gomez 13efa740e8 Changed logic in RRC/NAS/PHY for cell/plmn search to avoid stucking in IDLE 7 years ago
Ismael Gomez 90553e830d Fixed cell search for non-home PLMN 7 years ago
Ismael Gomez 91664ef2be Do sell reselection on IDLE by phch_recv thread instead of worker 7 years ago
Xavier Arteaga 8cabfa82cf Added CSI report enable option in SRS UE 7 years ago
Ismael Gomez cfaa5e9b28 Fix previous commit could not HO more than once due to not refreshing serving cell after 1st HO 7 years ago
Ismael Gomez 56df710d1f Add rx_gain_offset interface for RSRP calibration 7 years ago
Pedro Alvarez cc9845ef07 Merging HSS resynch functionality from David Rupprecht. Resolving conflict in user_db.csv. 7 years ago
Ismael Gomez a279ab47f0 Improved neighbour cell accuracy. Changed RRC to avoid segfault when neighbour cell addition 7 years ago
David Rupprecht 5db5399b2f Added HSS sync support (not tested) 7 years ago
David Rupprecht 3ead643c64 Introducing epc interfaces for hss and srsepc namespace 7 years ago
Andre Puschmann 74138071db move radio bearer definition to RRC 7 years ago
Ismael Gomez b0a2fa3b0b Merge branch 'enbmimo' into mob_crypto_mimo 7 years ago
Ismael Gomez 48dfc08fa3 Fixed SIC for PSS using channel estimates, added option to disable it (not usable on synchronous same-site cells). Use PSS CE in SSS decoding 7 years ago
Ismael Gomez 5c31800ccb Fixed HO with ciphering 7 years ago
Ismael Gomez 9a255b477a Merge branch 'crypto' into mobility_crypto 7 years ago
Paul Sutton 1a323770c9 Added support for AS ciphering 7 years ago
Ismael Gomez f1c6bcd252 Merge branch 'next' into mobility 7 years ago
Ismael Gomez dd8bacf466 Calibrated CFO loop default values 7 years ago
Paul Sutton 84724d2ab1 NAS-plane encryption working (thanks to David Rupprecht) 7 years ago
Ismael Gomez 3a0ab02264 S1/X2 handover tested and working 7 years ago
Ismael Gomez 8447c965e3 Fixing RSRP measurements 7 years ago
Ismael Gomez d428760b20 Merge branch 'next' into mobility 7 years ago
Ismael Gomez 408545dab8 X2 (constant NCC) working 7 years ago
Paul Sutton 4877c7ab07 Adding support for GUTI attach 7 years ago
Ismael Gomez 12d8b373c7 srsUE takes and reports intra-frequency measurements correctly 7 years ago
Xavier Arteaga 75957d41d7 Added DCI formats 2 and 2a inScheduler. Improved UE PHCH, corrected some MIMO bugs on both sides. 7 years ago
Xavier Arteaga 96a6d6ae9f Merge branch 'next' into enbmimo 7 years ago
Xavier Arteaga 6985682ef0 Added 2nd Codeword interface in scheduler, plus pmi close loop reporting 7 years ago
Xavier Arteaga af669a6cbb Added RI reporting in enb and optimised RI computing calling time 7 years ago
Ismael Gomez 85571c47cd Added option to ue.conf to configure CFO EMA (set default to 0.4) 7 years ago
Xavier Arteaga 21355de77e Added TM3 (1 layer only) eNB support at RRC 7 years ago
Ismael Gomez 1c677f7183 Read Home PLMN from IMSI 7 years ago
Ismael Gomez 2159ad3280 Added support for roaming PLMN 7 years ago
Paul Sutton 428e5955df Fix for SPGW address issue for GTP bearers - now using addresses from bearer setup requests 
htonl fix
 7 years ago
Ismael Gomez 92144ce15d Revert "Handle RRC ConnectionReject at eNodeB and UE" 
This reverts commit b6f905e2df.
 7 years ago
Ismael Gomez b6f905e2df Handle RRC ConnectionReject at eNodeB and UE 7 years ago
Ismael Gomez 4a86967530 Improved stability after radio link failure and radio transport error 7 years ago
Xavier Arteaga c29af35158 Solved bug: when a retransmission of a succesfully decoded block was received 7 years ago
Ismael Gomez 68b1782c86 Fixed Paging and reattachment in new state machine. Moved GW to srsue 7 years ago
Ismael Gomez 826667361e Reduced chances of uhd demuxer error. Reset device when it occurs 7 years ago
Xavier Arteaga 230eb63a97 Refactored grant: removed nof_tb from grant. Use tb_en instead. 7 years ago
Ismael Gomez b0639ab394 resolved merge conflicts 7 years ago
Ismael Gomez a51b6b09dd Merged with next. Attach successful 7 years ago
Ismael Gomez e5feec1934 Temporal commit before merge. Changed sequence objects to avoid reallocating memory. new NAS/RRC working with initial attachment 7 years ago
Ismael Gomez 955170bd52 Improved DL TCP performance by tweeking BSR reports and UL scheduler 7 years ago
Andre Puschmann 8030778809 fix PDCP initialization in eNB 7 years ago
Andre Puschmann 7ca0988ea3 refactor RLC to use RAT-agnostic config 7 years ago
Andre Puschmann 8dbabb2834 rework bearer/LCID handling 
This is a larger patch that reworks the LCID handling throughout the
code.

- It first moves the RB/LCID mapping out of common.h into the RRC object
  because different RATs may have different mappings.
- It adds a interface to RRC that other objects like RLC/PDCP/etc. may
  use to get the bearer name of a specific LCID.
- The patch also introduces a PDCP config class.
 7 years ago
Andre Puschmann cbfcb281a9 seperate RAT agnostic bits from various interfaces 7 years ago
Andre Puschmann c247f1103d parameterize TTI offset between UL grant and UL tx and UL tx and HARQ rx 7 years ago
Andre Puschmann 20a004a768 add seperate interface for MUX to query BSR procedure 
- this is also intented to make MUX RAT-agnostic
 7 years ago
Andre Puschmann 583aa2d180 move MAC structs shared between multiple RATs out RAT specific interface 7 years ago
Ismael Gomez 4b5cbafdb5 upgraded to new code restruct 8 years ago
Andre Puschmann 04ec09bd71 add license text to various files 8 years ago
Ismael Gomez 8a367bf825 changed srsue namespace to srslte for all common objects 8 years ago