System and method of enhancing WiFi real-time communications

摘要

Systems and methods of enhanced real-time communications between WiFi devices. In one embodiment of the present invention a method for enhanced payload protection in a WiFi system includes transmitting multiple copies of data packets in successive frame body transmissions. In another embodiment, a method for enhanced communications over a WiFi link includes examining a unit ID packet to determine a destination of a data payload when errors are detected in IP and/or MAC headers. If a destination is determined, the packet is corrected and forwarded to the device based on the unit ID determination. In another embodiment, a method for enhanced real-time communications in a WiFi network includes establishing a communications frame that includes an active timeslot, preferably based on U-APSD, for a WiFi device to use for transmission of successive audio data packets transmitted between the WiFi handset and AP.

主权项

1. A method of transmitting an Internet Protocol (IP) packet using an 802. 11 link to a destination device, comprising:
receiving the IP packet over an air interface, the IP packet comprising a Media Access Control (MAC) header, an IP header, and a data packet payload, wherein the data packet payload including a unit ID packet having information uniquely identifying the destination device for the IP packet and Forward Error Correction (FEC) packet to perform FEC on the unit ID packet; detecting an error in the IP packet; forwarding the IP packet to a packet evaluation layer in response to said detecting; determining, with the packet evaluation layer, that the error precludes obtaining a destination address for the destination device from the IP header and the MAC header; obtaining the destination address based on the unit ID packet included in the data packet payload in response to said determining; forwarding the IP packet to the destination device based on the destination address obtained via the unit ID packet included in the data packet payload; and performing forward error correction on the unit ID packet with the FEC packet to ensure that bits contained in the unit ID packet are unlikely to suffer a transmission error.