166 Commits (4227da9bd0333f6285447ee84e84b836806a0cfd)

Author SHA1 Message Date
Andre Puschmann c5f52adfba nas: fix issue in which NAS wouldn't allow to attach once it failed
the main issue was the plmn_selected variable. the solution
was to create a function to enter the deregistered state that resets the variable
and performs all other actions that need to be performed, like clearing
EPS bearers.

The patch also extends the SS to support AT commands to enable/disable
data services and now succesfully passes TC_9_2_2_1_7
5 years ago
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 6 years ago
Ismael Gomez 8c41625599 Add RLC suspend and resume 6 years ago
Xavier Arteaga 20823e191d SRSUE: Added UL force amplitude optional parameter 6 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)
6 years ago
Francisco Paisana 92b4b168fe added default rlc um and am in the interface as factories 6 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. 6 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. 6 years ago
Xavier Arteaga 87433c83da SRSUE: 64QAM R8 compatible 6 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. 6 years ago
Andre Puschmann e0a28cf4c0 simplify PDCP init and also bypass it for SRB0 on eNB 6 years ago
Andre Puschmann 0ef96f789b bypass PDCP for SRB0 processing chain 6 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 6 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 6 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