Commit Graph

34 Commits

Author SHA1 Message Date
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.
2020-12-12 15:59:27 +01:00
Andre Puschmann 07d2bc4fe8 change license header to agnostic version with hint to root LICENSE file 2020-12-12 15:59:25 +01:00
Francisco 7a74bf28d1 forward declare s1ap types in enb interfaces 2020-12-12 15:59:25 +01:00
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 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
Francisco Paisana 5e06430455 removal of stack handler interface 2020-07-13 11:19:25 +01:00
Andre Puschmann b994255b35 enb: fix handling of GTPU and S1AP init return values
if the eNB stack startup fails, for example due to binding
the wrong GTPU socket or similar issues, the eNB should stop
and log a message. Previously the return values for
S1AP and GTPU init were not even evaluated.
2020-04-10 14:58:36 +02:00
Andre Puschmann 76f1b87b69 fix uninit var in s1ap 2020-03-19 10:33:15 +01:00
Xavier Arteaga e832769ae6 Updated copyright 2020-03-16 11:26:06 +01:00
Pedro Alvarez 08a4ce0970 Added the ability to save S1AP pcaps at the eNB. 2020-03-09 17:35:10 +00:00
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
Francisco Paisana e859d622c7 added logref class to forbid logmap pointer invalidation. Created a test for the logref, and introduced it in the scheduler, rrc and nas 2020-02-28 11:33:26 +00:00
Francisco Paisana 052892916e fix mme/enb id assignment. Also, now using the macro for invalid rnti and a boolean flag for the uninitialized mme s1ap id 2020-02-26 15:17:45 +00:00
Francisco Paisana 2f57db5352 changed invalid rnti to 0 2020-02-26 15:17:45 +00:00
Francisco Paisana 7557ef45c8 changed the s1ap to allow the insertion of users without rnti 2020-02-26 15:17:45 +00:00
Francisco Paisana 5468189cd9 fix some variables' naming (e.g. x2_ap -> x2ap, e_rab -> erab) 2020-01-21 00:58:19 +00:00
Francisco Paisana 2a83eee0ee fix security key setup 2020-01-21 00:58:19 +00:00
Francisco Paisana ee24b59924 converted s1ap to new s1ap asn1 lib. Cleaned up bitstring packing/unpacking and bitstring types 2020-01-21 00:58:19 +00:00
Francisco Paisana 25bb36cdc3 converted ho preparation to new s1ap asn1 lib. Extended s1ap test 2020-01-21 00:58:19 +00:00
Francisco Paisana b6c53d786b updated s1ap rrc interface with new asn1 lib types 2020-01-21 00:58:19 +00:00
Francisco Paisana 6b4488d5c1 added sending of enb status transfer from SeNB 2019-12-11 17:41:49 +00:00
Francisco Paisana b792a3158c removed magic numbers for s1ap timers, and handled the error in the s1 ho cmd 2019-12-05 17:36:15 +00:00
Francisco Paisana 524c80a804 added handling of ho command 2019-12-05 17:36:15 +00:00
Francisco Paisana 2de0eee9c7 clean up some comments 2019-11-15 17:57:36 +00:00
Francisco Paisana 76673d2d40 cleaned up socket util methods, and made the S1AP non-blocking. 2019-11-15 17:57:36 +00:00
Francisco Paisana ff62ae6ad0 created the method chain in RRC to receive and handle the response to a S1AP HORequired 2019-11-10 22:06:31 +00:00
Francisco Paisana 50ed2ccfec added the handling of ho preparation failure and an ue class to s1ap 2019-11-10 22:06:31 +00:00
Francisco Paisana 57cd40ca31 added an ho required message send from SeNB to MME 2019-11-10 22:06:31 +00:00
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
2019-09-09 16:59:00 +02:00
Francisco Paisana 415d3418b6 reorganized enb to mirror ue director/class structure with a stack class 2019-06-07 15:41:56 +02:00