Method of transmitting and receiving frame for uplink multi-user multiple-input and multiple-output (UL MU-MIMO) communication
AssigneeElectronics and Telecommunications Research Institute
InventorsJee Yon Choi, Hyoung Jin Kwon, Je Hun Lee, Sok Kyu Lee
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Abstract
Provided is a method of transmitting and receiving a frame for a multi-user multiple-input and multiple-output (MU-MIMO) communication in an access point (AP), the method including determining at least one transmission station (STA), transmitting, to the transmission STA, an uplink multi-user poll (UL MU poll) frame requesting a data frame, receiving the data frame from the at least one transmission STA simultaneously, and transmitting an acknowledgement (ACK) frame to the at least one transmission STA in response to the receiving.
Claims8
A method for transmitting an uplink physical layer protocol data unit (PPDU) by a station (STA) in a wireless local area network, the method comprising:
- receiving, by the STA from an access point (AP), a first frame soliciting an immediate response from one or more STAs including the STA;
- and
- transmitting, by the STA to the AP, the uplink PPDU including a second frame,
- wherein the first frame includes a plurality of user fields corresponding to the one or more STAs,
- wherein the first frame further includes length information which is commonly applied to one or more frames, including the second frame, transmitted from the one or more to STAs including the STA,
- wherein each of the plurality of user fields includes a partial association identifier (AID) of a STA,
- wherein the uplink PPDU is transmitted a Short Inter-Frame Space (SIFS) after the first frame, and
- wherein an acknowledgement (ACK) frame is received in response to the uplink PPDU from the AP.
A method for receiving an uplink physical layer protocol data unit (PPDU) by an access point (AP) in a wireless local area network, the method comprising:
- transmitting, by the AP to one or more stations (STAs), a first frame soliciting an immediate response from the one or more STAs;
- and
- receiving, by the AP from the one or more STAs, one or more second frames in the uplink PPDU,
- wherein the first frame includes a plurality of user fields corresponding to the one or more STAs,
- wherein the first frame further includes length information which is commonly applied to the one or more second frames transmitted from the one or more STAs, and
- wherein each of the plurality of user fields includes a partial association identifier (AID) of a STA,
- wherein the uplink PPDU is transmitted a Short Inter-Frame Space (SIFS) after the first frame, and
- wherein an acknowledgement (ACK) frame is transmitted in response to the uplink PPDU to the one or more STAs.
An apparatus of a station (STA) for transmitting an uplink physical layer protocol data unit (PPDU) in a wireless local area network, the apparatus comprising:
- a transceiver;
- and
- a processor,
- wherein the processor is configured to:
- cause the transceiver to receive, from an access point (AP), a first frame soliciting an immediate response from one or more STAs including the STA;
- and
- cause the transceiver to transmit, to the AP, the uplink PPDU including a second frame,
- wherein the first frame includes a plurality of user fields corresponding to the one or more STAs,
- wherein the first frame further includes length information which is commonly applied to one or more frames, including the second frame, transmitted from the one or more STAs including the STA, and
- wherein each of the plurality of user fields includes a partial association identifier (AID) of a STA,
- wherein the uplink PPDU is transmitted a Short Inter-Frame Space (SIFS) after the first frame, and
- wherein an acknowledgement (ACK) frame is received in response to the uplink PPDU from the AP.
Dependencies are inferred from the claim text.