Method and system to detect packets of different formats
A method and system in accordance with the present invention presents a new packet structure and an improved method for detecting the packet. The method and system comprise adding an additional field to the packet structure to allow for a sufficient time to process a very high throughput (VHT) signal field; and enabling the detection of the VHT signal field of the packet structure. The VHT signal field is distinguishable from other signal fields and the VHT signal field allows for a backward compatibility with other devices.
1. A method of communicating packets of different formats in a transmitter, the method comprising:
adding an additional field in a packet structure, wherein the additional field is used to allow for a sufficient time to process a VHT signal field before processing a VHT short training field (VHT-STF) in a detection of the VHT signal field; and,
enabling the detection of the VHT signal field of the packet structure, wherein the VHT signal field is distinguishable from other signal fields; wherein, the VHT signal field allows for a backward compatibility with other devices, wherein the additional field comprises source address information for allowing a particular client to discriminate between different type packets.
2. The method of claim 1 , wherein adding the additional field between the VHT signal field and the VHT-STF of the packet structure,
and the additional field comprises an additional short training field.
3. The method of claim 1 whereby the transmitter transmits at least one signal field symbol and is capable of transmitting a plurality of 802.11 signal fields, the plurality of 802.11 signal fields including the VHT signal field.
4. The method of claim 1 wherein the VHT signal field comprises 90 degree rotated binary phase shift keying (BPSK) subcarriers.
5. The method of claim 4 wherein the BPSK rotation is on alternating subcarriers.
6. The method of claim 1 wherein the additional field includes additional user specific information.
7. The method of claim 1 wherein the additional field includes a user MAC address, or similar identifying information that indicates the intended client for an incoming packet.
8. A computer program product stored on a non-transitory computer readable medium for causing a computer to control an execution of an application to perform a method for communicating packets of different formats in a transmitter, the transmitter comprising a signal field; comprising:
adding an additional field between a very high throughput (VHT) signal field and a VHT short training field (VHT-STF) of a packet structure, the additional field is used to allow for a sufficient time to process a VHT signal field before processing the VHT-STF in a detection of the VHT signal field;
enabling the detection of a VHT signal field wherein the VHT signal field is distinguishable from other signal fields;
wherein the VHT signal field allows for a backward compatibility other devices, and the additional field comprises source address information for allowing a particular client to discriminate between different type packets.
9. The computer program product of claim 8 wherein the additional field comprises additional user specific information.
10. The computer program product of claim 8 wherein the additional field includes a user MAC address, or equivalent identifying information, that indicates the intended client for an incoming packet.
11. The computer program product of claim 8 wherein the additional field comprises an additional short training field.