Multiple frame transmission
AssigneeFrontside
InventorJong Hoon Park
Life of this patent
Estimating the term…
Abstract
A method for transmitting a physical layer protocol data unit (PPDU) in a transmission opportunity (TXOP) and a device using the same are provided. The device transmits a request to send (RTS) frame to a plurality of receiving stations. The RTS frame includes a bandwidth field and a plurality of allocation fields. The bandwidth field indicates a first bandwidth in which the RTS frame is transmitted. Each allocation field indicates a bandwidth in which a clear to send (CTS) frame is to be sent by a corresponding receiving station. The device determines a transmission bandwidth of a PPDU to be sent by comparing the first bandwidth with a second bandwidth which is a total bandwidth indicated by the plurality of allocation fields.
Claims11
A method for transmitting a physical layer protocol data unit (PPDU) in a transmission opportunity (TXOP), the method comprising:
- transmitting, by a transmitting station, a request to send (RTS) frame for initiating the TXOP to a plurality of receiving stations, the RTS frame including a bandwidth field and a plurality of allocation fields, the bandwidth field indicating a first bandwidth in which the RTS frame is transmitted, each allocation field indicating a second bandwidth in which a clear to send (CTS) frame is to be sent by a corresponding receiving station;
- receiving, by the transmitting station, a plurality of clear to send (CTS) frames as a response to the RTS frame from the plurality of receiving stations;
- determining, by the transmitting station, a transmission bandwidth of a PPDU to be sent based on the first bandwidth and the second bandwidth;
- and
- transmitting, by the transmitting station, the PPDU in the determined transmission bandwidth during the TXOP,
- wherein, when the second bandwidths for all of the plurality of allocation fields are equal to the first bandwidth, the transmission bandwidth of the PPDU is set to a bandwidth equal to or narrower than the first bandwidth.
A device for transmitting a physical layer protocol data unit (PPDU) in a transmission opportunity (TXOP), the device comprising:
- a transceiver configured to receive and transmit radio signals;
- and
- a processor coupled with the transceiver and configured to:
- control the transceiver to transmit a request to send (RTS) frame for initiating the TXOP to a plurality of receiving stations, the RTS frame including a bandwidth field and a plurality of allocation fields, the bandwidth field indicating a first bandwidth in which the RTS frame is transmitted, each allocation field indicating a second bandwidth in which a clear to send (CTS) frame is to be sent by a corresponding receiving station;
- control the transceiver to receive a plurality of clear to send (CTS) frames as a response to the RTS frame from the plurality of receiving stations;
- determine a transmission bandwidth of a PPDU to be sent based on the first bandwidth and the second bandwidth;
- and
- control the transceiver to transmit the PPDU in the determined transmission bandwidth during the TXOP,
- wherein, when the second bandwidths for all of the plurality of allocation fields are equal to the first bandwidth, the transmission bandwidth of the PPDU is set to a bandwidth equal to or narrower than the first bandwidth.
Dependencies are inferred from the claim text.