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132 Commits (da2ac3b2c170e80ad681533ef1e34ca27a79b84c)

Author SHA1 Message Date
Pedro Alvarez 0c20b7a455 Added support for S1AP modify bearer request support. This includes: 
- Handle received E-RAB S1AP at s1ap.cc.
 - Added methods to rrc.cc, rrc_ue.cc and rrc_bearer_cfg.cc to handle erab modify request.
 - Made RLC add_bearer() function capable of re-creating the RLC entity.
 - Send RRC reconfiguration to the UE and reply to the EPC with S1AP
   modify bearer response.

This commit also adds support to srsEPC to send S1AP modify bearer request for
testing purposes.
 4 years ago
Pedro Alvarez 7eebd71627 Added S1AP E-RAB release command/response handling to srsENB. 
Added the ability to srsEPC to send the E-RAB release command.
 4 years ago
Andre Puschmann 07d2bc4fe8 change license header to agnostic version with hint to root LICENSE file 4 years ago
Francisco 66712023bb remove unneeded includes of full rrc asn1 lib 4 years ago
Francisco 324cb80cac rename cell_info_common->enb_cell_common and cell_ctxt_dedicated->ue_cell_ded 4 years ago
yagoda bdc1964335 consolidating RRC eMBMS configuration into single function, setting some parameters to const 4 years ago
yagoda b90574975b refactoring asn1 eMBMS code, removing asn1 from PHY and MAC in eNodeB 4 years ago
Francisco 1cb65f07f1 enable meas gaps in RRC and enb parser 4 years ago
Francisco Paisana da70c0fdaf fix cellsToAddModList handling. Now the eNB always adds PCell+SCells as measObjects in the RRC Reconfiguration messages. It may also further include cellsToAddModList if they are provided in the rr.conf file 4 years ago
Francisco Paisana 8c9e596f89 refactored s1ap handover request interface. cleaned up rrc tenb s1 handover code 4 years ago
Francisco Paisana 5d1343fe75 implemented S1 bearer status transfer 4 years ago
Francisco Paisana db8af399f8 extended rrc tenb s1 handover test. implemented layer reconfig during s1 handover 4 years ago
Francisco Paisana 7605c7df23 added s1ap handover notification, fixed s1ap asn1 bug, and fixed bad fields for admitted erabs in ho req ack 4 years ago
Francisco Paisana 26f46ea067 add S1 Handover Request handling in target eNB 4 years ago
Francisco Paisana 5e06430455 removal of stack handler interface 5 years ago
Pedro Alvarez 89b6e0f714 Send paging message to all cells. 5 years ago
Ismael Gomez 493b7ea2da Remove SNR threshold based link failure detection 5 years ago
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.
 5 years ago
Francisco Paisana 61680d64d7 move rrc::ue to separate file 5 years ago
Francisco Paisana 598bad1f0e changed rrc ue cfg files names 5 years ago
Francisco Paisana ea5ba93f25 changed file names 5 years ago
Francisco Paisana d43448e8a1 created security cfg handling class for rrc ue and refactor bearer_list handling 5 years ago
Francisco Paisana 0515229240 perform mac bearer addiction via the bearer handler class 5 years ago
Francisco Paisana 6bcb5910c9 usage of new bearer list cfg class for srb1/srb2 setup 5 years ago
Francisco Paisana 71520d681a changes in pucch res allocation api to allow replacing p/scells 5 years ago
Francisco Paisana aab989022d avoid forward declarations 5 years ago
Francisco Paisana 08e1f01c72 allocation of the sr/cqi/pucch_cs resources takes place at a frequency basis now 5 years ago
Francisco Paisana ee994468f7 separate sr and pucch_cs allocation from rrc class 5 years ago
Francisco Paisana b16c7c1cfa created separate cqi res allocation types 5 years ago
Francisco Paisana 4b525127c9 created separate cell ctxt common list 5 years ago
Francisco Paisana 442ce0d7b0 fix cqi allocated check in rrc::ue 5 years ago
Francisco Paisana 5ef6031b44 added ability to use single-carrier if we are unable to allocate resources for the scells 5 years ago
Francisco Paisana 439193e4b0 added code to handle fail to alloc ue cqi and sr 5 years ago
Ismael Gomez 485771749e Allocate Scell resources when creating it rather than at UE creation 5 years ago
Ismael Gomez c0054140e9 Configure properly PUCCH CS mode for CA in ConnectionReconfiguration. Allocate n_pucch_cs resource and cqi/sr at rrc::ue constructor 5 years ago
Francisco Paisana 0526ae8ab1 updated rrc mobility parsing. added some utility methods 5 years ago
Pedro Alvarez b176eef8e7 Using a single map to store erab_info messages. 5 years ago
Pedro Alvarez cc2b474754 Starting to add array of erab_info messages. 5 years ago
Pedro Alvarez f872e6ec39 Marking nas_pending a vector to support multiple erab setup on sending RRC reconf. 5 years ago
Xavier Arteaga 5b7493cab5 Added 256QAM modulation tables to scheduler 5 years ago
Francisco Paisana 344eaf49ec use logmap in the whole enb and ue 5 years ago
Francisco Paisana 1839b9a6e5 cleaned up paging code to avoid extra processing steps in worker threads 5 years ago
Francisco Paisana 9c028ab723 removed user_mutex from srsenb::rrc. All that needed to happen was the prach_worker calling add_user from stack thread (done in an earlier PR), and the get_metrics run in the stack thread. I achieved the latter with an extra metrics queue 5 years ago
Ismael Gomez 5846e64a4d
Deallocate all CQI resources when deallocating users (#1097) 5 years ago
Ismael Gomez 73447972d8
Fix issue with simultaneous CQI and ACK/NACK transmission in CA (#1067) 
* Fix memory corruption when phy calling mac scheduler and not yet initiated

* Do not drop CQI if collision with ACK/NACK and PUSCH

* Allocate CQI resources for SCell properly

* Use UE_PCELL_CC_IDX macro

* Protect ul_sched from being called if not yet started
 5 years ago
Xavier Arteaga e832769ae6 Updated copyright 5 years ago
Francisco Paisana 567790c1a2 Renamed struct to store cell context in rrc. Moved sib buffers to this struct. Created helper methods for lookup 5 years ago
Francisco Paisana 349aed5e0d use sib configuration to set SCellToAddModList 5 years ago
Andre Puschmann b7aad27d86 move packing of SCell list into extra method and add fill PHY config on the spot 
previously we've packed the RRCReconfig with SCellToAddMod list and have then
parsed the message again to pack the PHY config dedicated for the new SCell carrier. This
is now done in one step.
 5 years ago
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.
 5 years ago
Andre Puschmann f2e1bfa699 refactor naming for s/p/cell structs and {enb,ue}_cc_idx 5 years ago
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.
 5 years ago
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
 5 years ago
Pedro Alvarez afc209711c Fix jump depending on uninitialized variable in srsenb::sched_ue::set_bearer_cfg_unlocked 5 years ago
Xavier Arteaga 4c61ffd391 SRSENB: set UE common PHY configuration in RRC::UE constructor 5 years ago
Xavier Arteaga bf4ecc8064 Fix srsenb PHY and unit/component tests 5 years ago
Francisco Paisana 5f557700f2 changed the sched::ue_cfg(...) function to allow diff configurations. The RRC now activates all carriers after rrc reconf complete 5 years ago
Francisco Paisana 2dc31ea440 added interface to configure multiple cells from the RRC 5 years ago
Andre Puschmann 369592544c store last RRC Connection Reconfig with transaction identifier 5 years ago
Xavier Arteaga a6105a3020 SRSENB: made possible custom UL/DL frequencies for each carrier 5 years ago
Francisco Paisana 5468189cd9 fix some variables' naming (e.g. x2_ap -> x2ap, e_rab -> erab) 5 years ago
Francisco Paisana ee24b59924 converted s1ap to new s1ap asn1 lib. Cleaned up bitstring packing/unpacking and bitstring types 5 years ago
Andre Puschmann fef6893ce4 make user activity handling independent of system time 
this commit removes the getsystime() call from the activity handling.
it uses a single timer per UE to handle its activity.

three different timer values exist. one for the Msg3 reception. This
is like before and is quite low to quickly remove fake UEs from the
RRC. The second is a generic value (set to 1s for now) that covers
the entire UE configuration phase where multiple messages are sent
back and forth until the UE is fully set up and the default
bearer runs. From there on, the UE inactivity timer is used which
may be much bigger than 1s.
 5 years ago
Andre Puschmann 476f970ee1 replace FIXME with TODO 5 years ago
Andre Puschmann 8a064cd3a6 pass msg_type from caller when logging RRC message 
before the type of some message wasn't displayed correctly,
like SIBs, for example because the logger didn't
know the filed to retrieve the type string
 5 years ago
Francisco Paisana a18a7e307e moved all the parsing of the libconfig files to separate functions that can be called from individual tests. Created several stack layer dummy classes for testing. Extended the rrc_mobility test to check correctness of RRC HOPreparation struct 5 years ago
Francisco Paisana 524c80a804 added handling of ho command 5 years ago
Andre Puschmann 30aac5a89a fix wrong c-type cast accessing UE database and uninit mem 5 years ago
Francisco Paisana 177e880293 removed extra threads from enb rrc 5 years ago
Francisco Paisana ff62ae6ad0 created the method chain in RRC to receive and handle the response to a S1AP HORequired 5 years ago
Francisco Paisana 50ed2ccfec added the handling of ho preparation failure and an ue class to s1ap 5 years ago
Francisco Paisana 57cd40ca31 added an ho required message send from SeNB to MME 5 years ago
Francisco Paisana 56fdf047e6 added default cell_list config to the rr.conf, but commented 5 years ago
Francisco Paisana 37a9501db3 added scell parsing to the rr.conf 5 years ago
Francisco Paisana 690a9850e7 cleaned up some old patterns and run clang-format in RRC and scheduler 5 years ago
Francisco Paisana b6b1dd1814 extended mobility test 5 years ago
Francisco Paisana b7559171b7 added logic to insert cells from conf file into var_meas_cfg and calculate diffs between meas_objs 5 years ago
Francisco Paisana 22f2781f28 fixed bug associated with the initialization of srsenb::rrc::ue. Disabled std::map::operator[] as a result 5 years ago
Francisco Paisana 7e62d6d1f9 added parser for rrc_cnfg section of rr.conf file, and dummy rrc_mobility class 5 years ago
Xavier Arteaga b3e8c4ae6a SRSENB: Schedule RI reporting 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
Francisco Paisana 415d3418b6 reorganized enb to mirror ue director/class structure with a stack class 6 years ago