Abstract: Provided is a battery cell tray for transporting a battery cell. The battery cell tray features a double-walled structure to minimize lateral movement by vertically coupling upper and lower-stage battery cells when stacking the battery cell trays in multiple stages. It also includes a rib to prevent foreign substances, generated during the vertical coupling of the battery cell trays, from being introduced into the cell seating part. This prevents foreign substance introduction and battery cell damage during secondary battery transport, thereby improving safety and reliability during transportation.

Abstract: The present invention relates to a technology where, in the state that start pointers for n transmit buffers each having Ethernet frame size are fixedly declared and thus fixed addresses are assigned to the transmit buffers, packets can be stably retransmitted utilizing the fixed addresses of the transmit buffers, without executing dynamic pointer operations in re-transmission.