Access management to multi-user uplink random resource units by a plurality of BSSs

A wireless communication method in a wireless network comprising an access point and a plurality of stations organized into a plurality of basic service sets, BSSs, the method comprising the following steps, at one station belonging to a first BSS:

• receiving a management frame including random access parameters to be used by stations of the first BSS and a second BSS to contend for access to a-random resource units splitting a communication channel in the frequency domain;
• receiving a trigger frame from the access point, the trigger frame reserving a transmission opportunity on at least one communication channel of the wireless network, the transmission opportunity including random resource units that stations may access using a contention scheme;
• and
• contending for access to a random resource unit, included in the reserved transmission opportunity, using received random access parameters,
• wherein the random access parameters include a lower boundary OCWmin and/or higher boundary OCWmax, both defining a selection range from which a size of a contention window OCW for random access is selected, and
• wherein the lower boundary OCWmin and/or higher boundary OCWmax is for use by stations of a first BSS and by stations of the second BSS.

An access point in a wireless network comprising a plurality of stations organized into a plurality of basic service sets, BSSs, the access point comprising:

• at least one microprocessor configured for carrying out the following steps:
• sending a management frame including random access parameters to be used by stations of the plurality of BSSs to contend for access to random resource units splitting a communication channel in the frequency domain;
• sending a trigger frame reserving a transmission opportunity on at least one communication channel of the wireless network, the transmission opportunity including random resource units that stations may access using a contention scheme configured by random access parameters included in the management frame;
• and
• in response to the trigger frame, receiving, over a random resource unit included in the reserved transmission opportunity, data from a station of one of the plurality of BSSs,
• wherein the random access parameters include a lower boundary OCWmin and/or higher boundary OCWmax, both defining a selection range from which a size of a contention window OCW for random access is selected, and
• wherein the lower boundary OCWmin and/or higher boundary OCWmax is for use by stations of a first BSS and by stations of a second BSS.

A station device in a wireless network comprising an access point and a plurality of stations organized into a plurality of basic service sets, BSSs, the station, belonging to a first BSS, comprising:

• at least one microprocessor configured for carrying out the following steps:
• receiving a management frame including random access parameters to be used by stations of the first BSS and a second BSS to contend for access to random resource unit units splitting a communication channel in the frequency domain;
• receiving a trigger frame from the access point, the trigger frame reserving a transmission opportunity on at least one communication channel of the wireless network, the transmission opportunity including random resource units that stations may access using a contention scheme;
• and
• contending for access to a random resource unit, included in the reserved transmission opportunity, using received random access parameters,
• wherein the random access parameters include a lower boundary OCWmin and/or higher boundary OCWmax, both defining a selection range from which a size of a contention window OCW for random access is selected, and
• wherein the lower boundary OCWmin and/or higher boundary OCWmax is for use by stations of a first BSS and by stations of the second BSS.