Included PHY channel parameter handling

Also, updated openairinterface5g_limits.h to match develop branch.

openair2/PHY_INTERFACE/phy_stub_UE.c

@@ -1298,7 +1298,10 @@ void *ue_standalone_pnf_task(void *context)
       LOG_E(MAC, "reading from standalone pnf sctp socket failed \n");
       continue;
     }
-
+    /* First we'll check for possible messages from the proxy. We do this by checking
+       the length of the message. This works because sizeof(uint16_t) < sizeof(nfapi_p7_message_header_t)
+       and sizeof(phy_channel_params_t) < sizeof(nfapi_p7_message_header_t) and
+       sizeof(uint16_t) != sizeof(phy_channel_params_t). */
     if (len == sizeof(uint16_t))
     {
       uint16_t sfn_sf = 0;
@@ -1311,6 +1314,23 @@ void *ue_standalone_pnf_task(void *context)
         abort();
       }
     }
+    else if (len == sizeof(phy_channel_params_t))
+    {
+      phy_channel_params_t ch_info;
+      memcpy(&ch_info, buffer, sizeof(phy_channel_params_t));
+      current_sfn_sf = ch_info.sfn_sf;
+      if (sem_post(&sfn_semaphore) != 0)
+      {
+        LOG_E(MAC, "sem_post() error\n");
+        abort();
+      }
+      uint16_t sf = ch_info.sfn_sf & 15;
+      if (sf > 10 && sf < 0)
+      {
+        LOG_E(MAC, "sf out of bounds, sfn: %d\n", sf);
+        abort();
+      }
+    }
     else
     {
       nfapi_p7_message_header_t header;

openair2/PHY_INTERFACE/phy_stub_UE.h

@@ -97,6 +97,13 @@ void handle_nfapi_ul_pdu_UE_MAC(module_id_t Mod_id,
                          uint16_t frame,uint8_t subframe,uint8_t srs_present, int index,
                          nfapi_ul_config_request_t *ul_config_req);
 
+typedef struct phy_channel_params_t
+{
+    uint16_t sfn_sf;
+    float sinr;
+    // Incomplete, need all channel parameters
+} phy_channel_params_t;
+
 typedef struct nfapi_tx_req_pdu_list_t
 {
     int num_pdus;                  /* number .pdus[] objects */