Adding Rank estimation for TM4.

Right now no feedback, only calculation.
To see the values, enable DEBUG_RANK_EST
in lte_ue_measurements.

openair1/PHY/LTE_TRANSPORT/extern.h

@@ -23,6 +23,8 @@ extern unsigned int dlsch_tbs25[27][25],TBStable[27][110],TBStable1C[32];
 extern unsigned short lte_cqi_eff1024[16];
 extern char lte_cqi_snr_dB[15];
 extern short conjugate[8],conjugate2[8];
+extern short minus_one[8];
+extern short minus_one[8];
 extern short *ul_ref_sigs[30][2][33];
 extern short *ul_ref_sigs_rx[30][2][33];
 extern unsigned short dftsizes[33];

openair1/PHY/LTE_TRANSPORT/vars.h

@@ -59,8 +59,10 @@ char lte_cqi_snr_dB[15] = { -2,
 
 unsigned char ue_power_offsets[25] = {14,11,9,8,7,6,6,5,4,4,4,3,3,3,2,2,2,1,1,1,1,1,0,0,0};
 
-short conjugate[8]__attribute__((aligned(16))) = {-1,1,-1,1,-1,1,-1,1} ;
-short conjugate2[8]__attribute__((aligned(16))) = {1,-1,1,-1,1,-1,1,-1} ;
+short conjugate[8]__attribute__((aligned(16))) = {-1,1,-1,1,-1,1,-1,1};
+short conjugate2[8]__attribute__((aligned(16))) = {1,-1,1,-1,1,-1,1,-1};
+short minus_one[8]__attribute__((aligned(16))) = {-1,-1,-1,-1,-1,-1,-1,-1};
+short plus_one[8]__attribute__((aligned(16))) = {1,1,1,1,1,1,1,1};
 
 int qam64_table[8],qam16_table[4];