Uplink multi-user multiple input multiple output for wireless local area network
First Claim
1. A method comprising:
- receiving an uplink traffic characteristic information signal from each of a plurality of communication devices;
selecting multiple communication devices of the plurality of communication devices as members of a client uplink group based at least on traffic information indicated by the respective uplink traffic characteristic information signals;
transmitting an uplink group definition frame to each member of the client uplink group, the uplink group definition frame indicating an uplink multi-user multiple input multiple output (MU-MIMO) transmission schedule having a start time for the client uplink group for members of the client uplink group to simultaneously transmit to an access point;
triggering the members of the client uplink group to transmit uplink MU-MIMO data frames simultaneously according to the uplink MU-MIMO transmission schedule, including transmitting a first communication frame to the client uplink group to prompt simultaneous transmission of independent uplink MU-MIMO data units by members of the client uplink group according to the uplink MU-MIMO schedule; and
simultaneously receiving the independent uplink MU-MIMO data units from the members of the client uplink group according to the uplink MU-MIMO schedule.
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Accused Products
Abstract
A method for selecting members of a client uplink group is described. An uplink traffic characteristic information signal is received from each of a plurality of communication devices. Multiple communication devices of the plurality of communication devices are selected as members of a client uplink group based at least on traffic information indicated by the respective uplink traffic characteristic information signals. An uplink group definition frame is transmitted to each member of the client uplink group. The uplink group definition frame indicates an uplink multi-user multiple input multiple output (MU-MIMO) transmission schedule for the client uplink group for members of the client uplink group to simultaneously transmit to an access point. The members of the client uplink group are triggered to transmit uplink data frames simultaneously.
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Citations
28 Claims
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1. A method comprising:
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receiving an uplink traffic characteristic information signal from each of a plurality of communication devices; selecting multiple communication devices of the plurality of communication devices as members of a client uplink group based at least on traffic information indicated by the respective uplink traffic characteristic information signals; transmitting an uplink group definition frame to each member of the client uplink group, the uplink group definition frame indicating an uplink multi-user multiple input multiple output (MU-MIMO) transmission schedule having a start time for the client uplink group for members of the client uplink group to simultaneously transmit to an access point; triggering the members of the client uplink group to transmit uplink MU-MIMO data frames simultaneously according to the uplink MU-MIMO transmission schedule, including transmitting a first communication frame to the client uplink group to prompt simultaneous transmission of independent uplink MU-MIMO data units by members of the client uplink group according to the uplink MU-MIMO schedule; and simultaneously receiving the independent uplink MU-MIMO data units from the members of the client uplink group according to the uplink MU-MIMO schedule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus, comprising:
a network interface device having one or more integrated circuits configured to; receive an uplink traffic characteristic information signal from each of a plurality of communication devices; select multiple communication devices of the plurality of communication devices as members of a client uplink group based at least on traffic information indicated by the respective uplink traffic characteristic information signals; transmit an uplink group definition frame to each member of the client uplink group, the uplink group definition frame indicating an uplink multi-user multiple input multiple output (MU-MIMO) transmission schedule having a start time for the client uplink group for members of the client uplink group to simultaneously transmit to an access point; trigger the members of the client uplink group to transmit uplink MU-MIMO data frames simultaneously according to the uplink MU-MIMO transmission schedule, including transmitting a first communication frame to the client uplink group to prompt simultaneous transmission of independent uplink MU-MIMO data units by members of the client uplink group according to the uplink MU-MIMO transmission schedule; and simultaneously receive the independent uplink MU-MIMO data units from the client uplink group. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method, comprising:
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receiving an enhanced request to send (E-RTS) message from a first communication device of a client uplink group, wherein the E-RTS message includes i) a length of a transmission opportunity (TXOP) of the first communication device and ii) an indication of a data unit size for an uplink MU-MIMO data unit to be transmitted by the first communication device; transmitting a communication frame to the first communication device and a second communication device of the client uplink group in response to the E-RTS message to cause a simultaneous transmission of respective uplink MU-MIMO data units from the first communication device and the second communication device, wherein the communication frame includes the indication of the data unit size; and simultaneously receiving the respective uplink MU-MIMO data units of the simultaneous transmission from the first communication device and the second communication device, the uplink MU-MIMO data units having the indicated data unit size. - View Dependent Claims (22, 23, 24)
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25. An apparatus, comprising:
a network interface device having one or more integrated circuits configured to; receive an enhanced request to send (E-RTS) message from a first communication device of a client uplink group, wherein the E-RTS message includes i) a length of a transmission opportunity (TXOP) of the first communication device and ii) an indication of a data unit size for an uplink MU-MIMO data unit to be transmitted by the first communication device; transmit a communication frame to the first communication device and a second communication device of the client uplink group in response to the E-RTS message to cause a simultaneous transmission of respective uplink MU-MIMO data units from the first communication device and the second communication device, wherein the communication frame includes the indication of the data unit size; and simultaneously receive the respective uplink MU-MIMO data units of the simultaneous transmission from the first communication device and the second communication device, the uplink MU-MIMO data units having the indicated data unit size. - View Dependent Claims (26, 27, 28)
Specification