addition of MPDCCH format 5. X_u_br sequences for BL/CE UE support and bugfixes in rx_prach0 for eMTC.

complete programming of Msg2/Msg4 procedures for eMTC. Addition of skeleton for PUCCH UCI (NFAPI) in L1. Some cleanup of eNB_scheduler.c

L1/L2 scheduling extensions for BL/CE operation, BR random-access procedure, BR PRACH detection. Still untested, but compilation succeeds. Missing elements in L2 - PUSCH programming for Msg3, Msg4 retransmission programming for BL/CE. DLSCH/ULSCH programming for UE-specific DLSCH/ULSCH for BL/CE

Note: this commit is work in progress. Contains initial integration of NFAPI data structures which are tested for TX path. RX path to follow.

we can compute CCE_max_used_index out of the loop.

get_nCCE returns the number of available CCEs.

We can put the CCEs numbers [ 0 .. get_nCCE-1 ],
so we need to use <, not <=.

config 4 tested with Amarisoft

those popped up thanks to previous commit

There is now the function copy_harq_proc_struct and some
procedures for the UE have changed, which makes necessary
to have UE->dlsch valid for both subframes (odd and even).

We increase memory usage, maybe it's not the correct solution.
To be kept in mind if something goes wrong at some point.

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bug 37

Ttile:
Sending side is as follows.
rar[3] = (((mcs&0x7)<<5)) | ((TPC&7)<<2) | ((ULdelay&1)<<1) | (cqireq&1);
So, 2 bit shift looks correct.

Bug Location:
ulsch->harq_processes[harq_pid]->TPC = (rar[3]>>3)&7;//rar->TPC;
----------------------------------------------------------

----------------------------------------------------------
bug 24

Ttile:
The last line "multicast_group = multicast_group" is hard
to understand. The local variable should be different name
than the global variable.

Bug Location:
const char *multicast_group_list[MULTICAST_LINK_NUM_GROUPS] = {
  "239.0.0.161",
  "239.0.0.162",
  "239.0.0.163",
  "239.0.0.164"
};
:
:
void multicast_link_start(void (*rx_handlerP) (unsigned int, char *),
                          unsigned char multicast_group, char *multicast_ifname)
{
  rx_handler = rx_handlerP;
  multicast_group = multicast_group;

Note:
Detected by CppCheck
----------------------------------------------------------

Note: not sure that the code is correct,
to be checked (Cédric Roux).

----------------------------------------------------------
bug 22

Ttile:
(subframe!=2)||(subframe!=7) is always TRUE. This coding
is really intended? Operator || should be && instead?

Bug Location:
((frame_parms->frame_type==TDD)&&(frame_parms->tdd_config==1)&&((subframe!=2)||(subframe!=7)))) {

Note:
Detected by CppCheck
----------------------------------------------------------