There is provided a method, comprising: transmitting, by a user equipment (100), at least one uplink data frame (400) to a first access point (102) of a wireless local area network, wherein the first uplink data frame of the transmitted at least one uplink data frame initiates a transmission opportunity (416); and transmitting at least one up-link data frame (404) to a second access point (104) of a wireless local area network within the same transmission opportunity (416).