Back to results
US 11,109,408 B2Granted
Method and device for uplink transmission
OwnerYong Ho Seokinventor
Life of this patent
Estimating the term…
Abstract
A method for transmitting data in a wireless local area network and the device using the same are provided. The method includes steps to transmit a request frame from an access point (AP) to a plurality of stations. The stations respond by transmitting physical layer protocol data units (PPDUs) in response to the request frame. The request frame and the responsive PPDU's are uniquely structured to increase communication efficiency.
Claims10
A method for communicating in a local area network, the method comprising:
- transmitting, at an access point (AP), a request frame to a plurality of stations, the request frame transmitted at a first instant,
- wherein the request frame requests the plurality of stations to transmit a physical layer protocol data units (PPDUs) in response to the request frame, the request frame including a clear channel assessment (CCA) signal, the CCA signal instructing each station to perform CCA before transmitting its responsive PPDU;
- and
- receiving, at the AP, the plurality of responsive PPDUs from the plurality of stations, each responsive PPDU received over sub-channels for which CCA were performed within a predetermined period of time following the first instant,
- wherein each responsive PPDU is generated based on an access category (AC) selected by its transmitting station, and
- wherein a transmission opportunity (TXOP) for the plurality of responsive PPDUs is restricted by a TXOP limit of a primary AC that is used to gain access to at least one sub-channel.
3 more elements
A device comprising:
- a processor;
- and
- memory disposed to said processor, said memory comprising instructions that, when executed by said processor, causes the device to:
- transmit a request frame to a plurality of stations, the request frame transmitted at a first instant,
- wherein the request frame requests the plurality of stations to transmit a physical layer protocol data units (PPDUs) in response to the request frame, the request frame including a clear channel assessment (CCA) signal, the CCA signal instructing each station to perform CCA before transmitting its responsive PPDU;
- and
- receive the plurality of responsive PPDUs from the plurality of stations, each responsive PPDU received over sub-channels for which CCA were performed by a corresponding station within a predetermined period of time following the first instant,
- wherein each responsive PPDU is generated based on an access category (AC) selected by its transmitting station, and
- wherein a transmission opportunity (TXOP) for the plurality of responsive PPDUs is restricted by a TXOP limit of a primary AC that is used to gain access to at least one sub-channel.
6 more elements
Dependencies are inferred from the claim text.