Method and apparatus for mu-mimo transmission
AssigneeIndustry-Academic Cooperation Foundation, Dankook University
InventorsKyu Haeng LEE, Su Han CHOI
Life of this patent
Estimating the term…
Abstract
A method for Multi-User Multi-Input Multi-Output (MU-MIMO) transmission is provided. The method comprises: receiving an uplink Orthogonal Frequency Division Multiple Access (OFDMA) frame from a plurality of stations; estimating downlink channel states for the plurality of stations based on the uplink OFDMA frame; and selecting one or more of the plurality of stations for downlink MU-MIMO transmissions based on the estimation of downlink channel states for the plurality of stations.
Claims20
A method for Multi-User Multi-Input Multi-Output (MU-MIMO) transmission, the method comprising:
- receiving an uplink Orthogonal Frequency Division Multiple Access (OFDMA) frame from a plurality of stations;
- estimating downlink channel states for the plurality of stations based on the uplink OFDMA frame;
- and
- selecting one or more of the plurality of stations for downlink MU-MIMO transmissions based on the estimation of downlink channel states for the plurality of stations.
A method for Multi-User Multi-Input Multi-Output (MU-MIMO) transmission, the method comprising:
- receiving a trigger frame (TF);
- and
- in response to receiving the TF, sending uplink Orthogonal Frequency Division Multiple Access (OFDMA) frame,
- wherein the uplink OFDMA frame is to be used to estimate downlink channel states for a downlink MU-MIMO transmission.
An apparatus for Multi-User Multi-Input Multi-Output (MU-MIMO) transmission, the apparatus comprising a processor and a transceiver, the processor being configured to:
- receive an uplink Orthogonal Frequency Division Multiple Access (OFDMA) frame from a plurality of stations;
- estimate downlink channel states for the plurality of stations based on the uplink OFDMA frame;
- and
- select one or more of the plurality of stations for downlink MU-MIMO transmissions based on the estimation of downlink channel states for the plurality of stations.
An apparatus for Multi-User Multi-Input Multi-Output (MU-MIMO) transmission, the apparatus comprising a processor and a transceiver, the processor being configured to:
- receive a trigger frame (TF);
- and
- in response to receiving the TF, send uplink Orthogonal Frequency Division Multiple Access (OFDMA) frame,
- wherein the uplink OFDMA frame is to be used to estimate downlink channel states for a downlink MU-MIMO transmission.
Dependencies are inferred from the claim text.