Simultaneous transmit and receive operation in wlans
AssigneeKabushiki Kaisha Toshiba
InventorsAdnan AIJAZ, Parag KULKARNI
Life of this patent
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Abstract
An IEEE 802.11 compatible processor configured to identify, using an indication received from a first station in a network and from among a plurality of further stations within the network, a second station to transmit data to during receipt of a next transmission from the first station using information indicating which stations amongst the further stations data can be transmitted to while receiving data from the first station; and information regarding the duration required to transmit next data scheduled to be transmitted to the second station, wherein the indication is an indication of the duration of the next data transmission scheduled to be transmitted by the first station.
Claims17
An IEEE 802.11 compatible processor configured to:
- identify, using an indication received from a first station in a network and from among a plurality of further stations within the network, a second station to transmit data to during receipt of a next transmission from the first station using:
- information indicating which stations amongst the further stations data can be transmitted to while receiving data from the first station;
- and
- information regarding the duration required to transmit next data scheduled to be transmitted to the second station;
- wherein the indication is an indication of the duration of the next data transmission scheduled to be transmitted by the first station.
An IEEE 802.11 compatible station comprising a transmitter, comprising a processor and memory storing program instructions for execution by the processor, the program instructions configured to, when executed by the processor, cause the processor to:
- transmit during a current transmission of a data packet an indication of the duration of a data transmission scheduled after successful completion of the current data transmission.
An IEEE 802.11 compatible station comprising a transmitter, comprising a processor and memory storing program instructions for execution by the processor, the program instructions configured to, when executed by the processor, cause the processor to, for periods of time during which data transmission activity from another station is expected, determine, based on a known strength of signal previously received from the other station, a carrier sensing threshold that allows communication with an access point without interference from the other station and to adjust the station's carrier sensing threshold to the determined carrier sensing threshold during the period of time.
A method of data transmission, comprising:
- receiving at an IEEE 802.11 compatible apparatus a transmission from a first IEEE 802.11 compatible station including an indication of a duration of next transmission scheduled to be transmitted from the first station to the apparatus;
- determine, within the apparatus and from a plurality of further stations, a second station to transmit data to during the next transmission from the first station using:
- information stored in the apparatus indicating which stations amongst the further stations data can be transmitted to while the apparatus receives data from the first station;
- and
- information regarding the duration required to transmit next data scheduled to be transmitted from the apparatus to the second station;
- and
- transmit the next data scheduled to be transmitted to the second station while the next data transmission from the first station takes place.
Dependencies are inferred from the claim text.