| 摘要 |
PROBLEM TO BE SOLVED: To provide apparatuses and methods for medium reservation in the case of multi-user (MU) communications.SOLUTION: Multiple mechanisms are supported for protecting MU transmissions, where appropriate control messages can be exchanged between an access point and served user stations before transmitting downlink data packets. In particular, an apparatus for wireless communications comprises: a transmitter configured to transmit one or more reservation messages, each of the one or more reservation messages being destined to a different apparatus of a plurality of apparatuses to reserve a medium for data communication; and a receiver configured to receive one or more confirmation messages, each of the one or more confirmation messages being transmitted from the different apparatus in response to that reservation message, where the transmitter is also configured to transmit, in response to the one or more confirmation messages, data over the medium to the plurality of apparatuses. |
