Group transmissions in wireless local area networks
AssigneeInterDigital Patent Holdings, Inc.
InventorSudheer A. Grandhi
Life of this patent
Estimating the term…
Abstract
A method performed by a STA may comprise receiving, from an access point, a RTS frame having a duration field and transmitting, to the AP, in response to receiving the RTS frame, a CTS frame. The method may further comprise receiving, from the AP, data of a MU data unit addressed to the STA and another STA and, in response, transmitting an ACK frame, to the AP. The data may be received by the STA on a subset of sub-carrier frequencies of which the MU data unit spans and the MU data unit and the ACK frame may be transmitted within a duration indicated by the duration field.
Claims19
A station (STA) comprising:
- a receiver configured to receive, from an access point (AP), a request to send (RTS) frame having a duration field;
- and
- a transmitter configured to transmit, to the AP, in response to receiving the RTS frame, a clear to send (CTS) frame;
- wherein the receiver is further configured to receive, from the AP, data of a multi-user (MU) data unit addressed to the STA and another STA, wherein the data is received, by the STA, on a subset of sub-carrier frequencies of which the MU data unit spans;
- wherein the transmitter is further configured to transmit an acknowledgement (ACK) frame, to the AP, wherein the MU data unit and the ACK frame are transmitted within a duration indicated by the duration field.
A method performed by a station (STA), the method comprising:
- receiving, from an access point (AP), a request to send (RTS) frame having a duration field;
- transmitting, to the AP, in response to receiving the RTS frame, a clear to send (CTS) frame;
- receiving, from the AP, data of a multi-user (MU) data unit addressed to the STA and another STA, wherein the data is received, by the STA, on a subset of sub-carrier frequencies of which the MU data unit spans;
- and
- transmitting an acknowledgement (ACK) frame, to the AP, wherein the MU data unit and the ACK frame are transmitted within a duration indicated by the duration field.
An access point (AP) comprising:
- a transmitter configured to transmit, to a plurality of stations (STAs) a request to send (RTS) frame having a duration field;
- and
- a receiver configured to receive, from the plurality of STAs, clear to send (CTS) frames in response to the RTS frame;
- wherein the transmitter is further configured to transmit, from the AP, a multi-user (MU) data unit addressed to the plurality of STAs, wherein the MU data unit includes data transmitted on different subsets of sub-carrier frequencies for each STA of the plurality of STAs;
- wherein the receiver is further configured to receive ACK frames, from the plurality of STAs, wherein the MU data unit and the ACK frames are transmitted within a duration indicated by the duration field.
Dependencies are inferred from the claim text.