A method of wireless local area network communication between a client and an access point includes sending, by the client, a client-originated message to the access point over a bidirectional upload channel; receiving, by the client, a client-acknowledgement message from the access point over the bidirectional upload channel; receiving, by the client, an access point-originated message from the access point over a bidirectional download channel that was generated in response to the client-originated message; and sending, by the client, an access point-acknowledgement message to the access point over the bidirectional download channel. The bidirectional download channel is separate from the bidirectional upload channel.