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155 Commits (4ff70b60086a44e43d259f2cec147c0716196dee)

Author SHA1 Message Date
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
Francisco Paisana 67d6a25194 Moving mac timers to stack timers (#638) 
* first step towards moving MAC timers to stack. Mac is still using its own timers. srslte::timers class can be restructured.

* moved timers out of the UE MAC
 5 years ago
Harald Welte 756374419f SRSENB: Add SIB7 (GERAN neighbor) support 
This adds the required missing bits to the eNB config file parser
to enable minimalistic support of parsing SIB7 configuration.

SIB7 contains GERAN (GSM) neighbor cell information, which is important
if you are operating a combined 2G+4G netowrk and want to assist the UEs
to reselect GSM cells once they move out of LTE coverage.

An example SIB7 section looks as follows:

sib7 = {
    t_resel_geran = 1;
    carrier_freqs_info_list =
    (
        {
            cell_resel_prio = 0;
            ncc_permitted = 255;
            q_rx_lev_min = 0;
            thresh_x_high = 7;
            thresh_x_low = 7;

            start_arfcn = 871;
            band_ind = "dcs1800";
            explicit_list_of_arfcns = ( 873, 875, 877 );
        }

    );
};

Closes: #357
 5 years ago
Harald Welte 844994f2cd [ENB] Fix enabling of MAC pcap file 
when using

[pcap]
enable = true
filename = /tmp/enb.pcap

in enb.conf, there is no pcap file created.

The problem is somewhere in the way how arguments are handled.
pcap.enable is properly parsed into args.pcap.  However, later on,
lte_stack->init(args.stack, rrc_cfg, lte_phy.get()) only passes
args.stack down the road, not args.pcap.  enb_stack_lte::init() then
basically uses args.stack.pcap and not args.pcap, and the latter appears
always false.

Let's remove pcap_args_t from all_args and only use the instance in
stack_args_t.

Closes: #359
 5 years ago
Pedro Alvarez 6efa944b5e Removed srslte prefix from pdcp_config_t 5 years ago
Pedro Alvarez f90b69e5f4 More clang-format for PDCP 5 years ago
Pedro Alvarez 457f35699d Reverted back to a single config structure between PDCP NR and PDCP LTE. 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
Andre Puschmann e60a4490d2 streamline embms parameters and fix MCS selection 5 years ago
Francisco Paisana 424876c5e4 added DL TTI mask for MBMS 5 years ago
Ismael Gomez feafec2725 Fix srsENB PHY log and reorganized expert args 5 years ago
Andre Puschmann f1387d8cf8 fix uninitialized vars in scheduler_grid 5 years ago
Andre Puschmann e0b583db5d remove extra indirection from enb_phy 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
Andre Puschmann 92f0d58856 mac: move further init/config into ctor to allow early logging, etc. 5 years ago
Andre Puschmann 6a11030ae1 enb: fix race condition in workers overwriting the DL tx buffer 
this adds a own tx buffer for each HARQ PID
 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 34fde16b40 change scheduler mutex to std::mutex (#546) 
* change scheduler mutex to std::mutex

* rename lck to lock
 5 years ago
Andre Puschmann 58763fb714 stack: move initialization of log object into ctor 
this fixes the issue when the stack is torn down if, for example,
the radio couldn't be loaded correctly. it will hence call stop() on all stack
components which are not initialzized yet, and logging therefore doesn't work.
the log object is know during contruction time and therefore can be passed
in as soon as possible.
 5 years ago
Andre Puschmann da35f41dd5 rework MAC logical channel prioritization 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 415d3418b6 reorganized enb to mirror ue director/class structure with a stack class 6 years ago
Andre Puschmann e47010130f extend thread class to set unique thread name in ctor 
this will also extend all classes that use srslte::thread
to specify the name of the thread in the ctor as well
as to set the name of the worker threads in the thread pool
the thread name will be displayed in gdb.
 6 years ago
Andre Puschmann 0e95867f13 remove task dispatcher class 6 years ago
Xavier Arteaga 1f52c32b84 SRSENB: Fixed CLang Tidy in enb.cc 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 e4ea96aa79 add check for return value for RRC unpacking 
- handle error cases accordingly
 6 years ago
Andre Puschmann 4b01a2e4a0 update copyright notice 6 years ago
Andre Puschmann 205db6f229 add missing license headers 6 years ago
Ismael Gomez 7780b1aba5 add tdd/ca support 6 years ago
David Rupprecht 39c49ab1ef Configurable sec algo preference list 6 years ago
David Rupprecht fd34e22c84 Started with local preference selection algorithm 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
Andre Puschmann 1cc6ae3c60 enable c++11 support 6 years ago
Andre Puschmann 4204321fde fix uninitialised variables in enb during startup 6 years ago
Andre Puschmann 86232c143e expose RLC tx queue length through config struct 6 years ago
Francisco Paisana 0204db2e12 new asn1 rrc library 6 years ago
Andre Puschmann 8326299ec5 fix uninitialized variables 6 years ago
Andre Puschmann 2590ebd10b fix bugs reported by coverity 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 93d17fed3e disable buffer pool logging by default 6 years ago
Andre Puschmann 5a3fa7c305 fix scheduler issues for 6 PRBs 6 years ago
Pedro Alvarez de75a74932 Fixed some compilation issues. 6 years ago