Method of allocating resources in a wireless network

A device for allocating a channel resource in a wireless network, the device comprising:

• a Media Access Control (MAC)/MAC Layer Management Entity (MLME) sublayer which is adapted to:
• receive a primitive requesting to transmit a message for requesting the channel resource from an upper layer;
• transmit the message for requesting the channel resource to a coordinator, wherein the channel resource is to be used for both transmitting a first message to a second device and receiving a second message from the second device in response to the first message, wherein the message for requesting the channel resource includes information about a duration of the channel resource;
• and
• receive channel resource allocation information for allocating the channel resource from a MAC/MLME sublayer of the coordinator, wherein the channel resource allocation information comprises information about a duration of the allocated channel resource,
• wherein the device transmits the first message to the second device during the channel resource allocated based upon the channel resource allocation information, and wherein the device receives the second message from the second device in response to the first message during the allocated channel resource,