diff --git a/examples/bluetooth/hci/controller_hci_uart_esp32c3_and_esp32s3/main/main.c b/examples/bluetooth/hci/controller_hci_uart_esp32c3_and_esp32s3/main/main.c
index 4e171bc2d88..5858a598729 100644
--- a/examples/bluetooth/hci/controller_hci_uart_esp32c3_and_esp32s3/main/main.c
+++ b/examples/bluetooth/hci/controller_hci_uart_esp32c3_and_esp32s3/main/main.c
@@ -161,20 +161,29 @@ static void uhci_rx_done_process_task(void *arg)
 {
     size_t item_size = 0;
     uint8_t *data = NULL;
-    while (1) {
-        xSemaphoreTake(uart_env.rx_process_sema, portMAX_DELAY);
-        data = xRingbufferReceiveUpTo(uart_env.ringbufhandle, &item_size, portMAX_DELAY, uart_env.rx.size);
-        if (item_size != uart_env.rx.size) {
-            assert(0);
-        }
-        memcpy(uart_env.rx.buf, data, item_size);
-        vRingbufferReturnItem(uart_env.ringbufhandle, data);
+    size_t items_waiting = 0;
 
+    xSemaphoreTake(uart_env.rx_process_sema, portMAX_DELAY);
+    while (1) {
+        data = xRingbufferReceiveUpTo(uart_env.ringbufhandle, &item_size, portMAX_DELAY, uart_env.rx.size);
+        // prepare next receive
         if (uart_env.rx_eof) {
             uhci_receive(uart_env.uhci_handle, uart_env.rx_data_buffer, UHCI_MAX_RX_BUFFER_SIZE);
             uart_env.rx_eof = false;
         }
 
+        memcpy(uart_env.rx.buf, data, item_size);
+        vRingbufferReturnItem(uart_env.ringbufhandle, data);
+        uart_env.rx.size -= item_size;
+        uart_env.rx.buf += item_size;
+        if (uart_env.rx.size) {
+            vRingbufferGetInfo(uart_env.ringbufhandle, NULL, NULL, NULL, NULL, &items_waiting);
+            if (items_waiting < uart_env.rx.size) {
+                ESP_LOGW(tag, "Ring buffer items size less than expected");
+            }
+            continue;
+        }
+
         assert(uart_env.rx.callback != NULL);
         esp_bt_hci_tl_callback_t callback = uart_env.rx.callback;
         void *arg = uart_env.rx.arg;
@@ -182,13 +191,14 @@ static void uhci_rx_done_process_task(void *arg)
         // clear callback pointer
         uart_env.rx.callback = NULL;
         uart_env.rx.arg = NULL;
-        uart_env.rx.size = 0;
 
         // call handler
         callback(arg, ESP_BT_HCI_TL_STATUS_OK);
 
         // send notification to Bluetooth Controller task
         esp_bt_h4tl_eif_io_event_notify(1);
+
+        xSemaphoreTake(uart_env.rx_process_sema, portMAX_DELAY);
     }
 }