Wireless communication method and apparatus thereof

摘要

To provide a stable high speed wireless network, the relay process is solved at the lower layers (PHY layer, MAC layer) without depending on upper layers to reduce the load of the upper layers to the utmost. Discrimination is made between a packet of one's own station and a relay packet to process the presence and absence of the relay packet without using a CPU to construct a wireless network executing the relay processing at a high speed. Further, the retransmission is executed without using a CPU to provide a stable wireless network. In addition, the table for relay process (routing table) is constantly updated to add to the table the information of the packets of which processes are not executed to eventually suppress unnecessary processes.

主权项

1. A wireless communication method for performing transmission and reception in a wireless communication apparatus while relaying a packet of wirelessly transmitted data, the method comprising:
identifying a Media Access Control (MAC) header of the received packet, the MAC header including a destination MAC address, a source MAC address, and security information including the destination MAC address and the source MAC address encrypted with a key common to the wireless communication apparatus and a source of the received packet; decrypting the security information of the MAC header using the common key and comparing the decrypted security information to the destination MAC address and the source MAC address included in the MAC header to determine whether the received packet is to be processed; in response to a determination that the received packet is to be processed, determining a destination of the received data based only on the recognized MAC header; recognizing a next transmission destination by looking up a table, if the determined destination is not the wireless communication apparatus; determining a packet to be relayed based on the recognition of said MAC header and the recognition of said transmission destination; selecting a packet to be transmitted among packets to be transmitted by an application of the wireless communication apparatus and the determined packet to be relayed; and transmitting the selected packet.