Method and system for OFDMA random access

An method for an electronic device comprising:

• receiving, in response to the electronic device associating with an access point, a new medium access control (MAC) frame comprising a contention group assignment of M possible contention groups;
• receiving, during an Orthogonal Frequency Division Multiple Access (OFDMA)-random access (RA) communication, a first trigger frame random access (TF-R) frame corresponding to the contention group assignment of the electronic device;
• reducing a counter value responsive to receiving the first TF-R frame;
• determining that the counter value satisfies a threshold value;
• receiving a second TF-R frame that corresponds to the contention group assignment, wherein the second TF-R frame comprises a first OFDMA-RA sub-channel frequency;
• and
• transmitting a first frame via the first OFDMA-RA sub-channel frequency.

A non-transitory computer-readable medium having instructions stored therein, which when executed by a processor cause the processor to perform operations, the operations comprising:

• receiving from an access point, a new medium access control (MAC) frame comprising criteria for a contention group assignment;
• receiving, during an Orthogonal Frequency Division Multiple Access (OFDMA)-random access (RA) communication, a first trigger frame random access (TF-R) frame;
• determining that the first TF-R frame corresponds to a contention group assignment corresponding to the criteria;
• reducing a counter value based on the determination that the first TF-R frame corresponds to the contention group assignment;
• receiving a second TF-R frame that corresponds to the contention group assignment, wherein the second TF-R frame comprises a first OFDMA-RA sub-channel frequency;
• and
• transmitting a first frame via the first OFDMA-RA sub-channel frequency.