Acknowledgements in response to received frames
AssigneeInterDigital Patent Holdings, Inc.
InventorsXiaofei Wang, Hanqing Lou, Monisha Ghosh, Sudheer A. Grandhi
Life of this patent
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Abstract
A method and apparatus for operation by an access point (AP) is provided. The method may comprise receiving a first frame from a first STA, the first frame including first data and receiving a second frame from a second STA, the second frame including second data. In response to the receiving, an acknowledgement (ACK) frame may be transmitted to the first STA and to the second STA. The ACK frame may be addressed to a broadcast address and include a field which indicates whether the ACK frame is a multiple traffic identifier (multi-TID) block ACK frame format or another ACK frame format.
Claims20
A station (STA) comprising:
- a receiver configured to receive a request to send (RTS) frame from an access point (AP), the receiver configured to receive a duration field indicating a duration of a data unit and a duration of a block acknowledgement (block-ACK) frame, wherein the duration of the block-ACK frame is derived from a parameter pre-negotiated between the STA and the AP;
- a transmitter configured to transmit a clear to send (CTS) frame;
- the receiver configured to receive a control frame that indicates that the control frame is for a group of STAs and further indicates that the control frame is a block-ACK control frame;
- the transmitter configured to transmit the data unit to the AP;
- and
- the receiver configured to receive the block-ACK frame, from the AP, after the control frame, wherein the block-ACK frame is addressed to a broadcast address and includes a plurality of subfields, each one of the plurality of subfields comprising an association identifier (AID) and a traffic identifier (TID).
A method for operation by an access point (AP), the method comprising:
- transmitting a request to send (RTS) frame and transmitting duration information indicating a duration of an acknowledgement (ACK) frame, wherein the duration of the ACK frame is derived from a pre-negotiated parameter;
- receiving a clear to send (CTS) frame;
- transmitting a control frame that indicates that the control frame is for a group of STAs and further indicates that the control frame is a block-ACK control frame;
- receiving a first data unit from a first STA, the first data unit comprising first data;
- receiving a second data unit from a second STA, the second data unit comprising second data;
- and
- transmitting the ACK frame to the first STA and the second STA after transmitting the control frame, wherein the ACK frame is addressed to a broadcast address and includes a field which indicates whether the ACK frame is a multiple traffic identifier (multi-TID) block ACK frame format or another ACK frame format.
An access point (AP) comprising:
- a transmitter configured to transmit a request to send (RTS) frame and duration information indicating a duration of an acknowledgement (ACK) frame, wherein the duration of the ACK frame is derived from a pre-negotiated parameter;
- a receiver configured to receive a clear to send (CTS) frame;
- the transmitter configured to transmit a control frame that indicates that the control frame is for a group of STAs and further indicates that the control frame is a block acknowledgement (block-ACK) control frame;
- the receiver configured to receive a first data unit from a first STA, the first data unit comprising first data;
- the receiver configured to receive a second data unit from a second STA, the second data unit comprising second data;
- and
- the transmitter configured to transmit the ACK frame to the first STA and the second STA, after the control frame, wherein the ACK frame is addressed to a broadcast address and includes a field which indicates whether the ACK frame is a multiple traffic identifier (multi-TID) block ACK frame format or another ACK frame format.
Dependencies are inferred from the claim text.