Techniques for MU-MIMO sounding sequence protection
First Claim
1. An access point for wireless communications, comprising:
- a transceiver;
a memory; and
a processor communicatively coupled to the transceiver and the memory, the processor being configured to;
detect a condition that triggers a protection of a sounding sequence for multiple-input-multiple-output (MU-MIMO) data communications of an MU-MIMO group;
select in response to the triggering of the protection of the sounding sequence, a single wireless station (STA) from a plurality of STAs in the MU-MIMO group as an intended STA for the protection of the sounding sequence, the selected STA being selected based on one of several different selection criteria;
transmit, via the transceiver and as part of the protection of the sounding sequence, a single request-to-send (RTS) frame for the plurality of STAs in the MU-MIMO group, the single RTS frame being addressed only to the selected STA;
receive, via the transceiver and from the selected STA as part of the sounding sequence protection, a single clear-to-send (CTS) frame for the plurality of STAs in the MU-MIMO group;
perform, in response to receiving the single CTS frame from the selected STA, the sounding sequence in which the plurality of STAs in the MU-MIMO group participate; and
transmit, via the transceiver and after completion of the sounding sequence, the MU-MIMO data communications to at least one of the plurality of STAs in the MU-MIMO group.
1 Assignment
0 Petitions
Accused Products
Abstract
The disclosure provides techniques for sounding sequence protection in multi-user multiple-input-multiple-output (MU-MIMO) communications for wireless local area networks (WLANs). An access point (AP) may select a station (STA) from multiple STAs in a MU-MIMO group. The AP may then transmit a request-to-send (RTS) frame, where the RTS is addressed to the selected STA. The AP may receive a clear-to-send (CTS) frame from the selected station and may perform, in response to receiving the CTS frame, a sounding sequence with the MU-MIMO group. After completion of the sounding sequence, the AP may transmit MU-MIMO data communications to at least one of the STAs in the MU-MIMO group.
-
Citations
31 Claims
-
1. An access point for wireless communications, comprising:
-
a transceiver; a memory; and a processor communicatively coupled to the transceiver and the memory, the processor being configured to; detect a condition that triggers a protection of a sounding sequence for multiple-input-multiple-output (MU-MIMO) data communications of an MU-MIMO group; select in response to the triggering of the protection of the sounding sequence, a single wireless station (STA) from a plurality of STAs in the MU-MIMO group as an intended STA for the protection of the sounding sequence, the selected STA being selected based on one of several different selection criteria; transmit, via the transceiver and as part of the protection of the sounding sequence, a single request-to-send (RTS) frame for the plurality of STAs in the MU-MIMO group, the single RTS frame being addressed only to the selected STA; receive, via the transceiver and from the selected STA as part of the sounding sequence protection, a single clear-to-send (CTS) frame for the plurality of STAs in the MU-MIMO group; perform, in response to receiving the single CTS frame from the selected STA, the sounding sequence in which the plurality of STAs in the MU-MIMO group participate; and transmit, via the transceiver and after completion of the sounding sequence, the MU-MIMO data communications to at least one of the plurality of STAs in the MU-MIMO group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A method for wireless communications, comprising:
-
detecting a condition that triggers a protection of a sounding sequence for multiple-input-multiple-output (MU-MIMO) data communications of an MU-MIMO group; selecting in response to the triggering of the protection of the sounding sequence, a single wireless station (STA) from a plurality of STAs in the MU-MIMO group as an intended STA for the protection of the sounding sequence, the selected STA being selected based on one of several different selection criteria; transmitting, from an access point and as part of the protection of the sounding sequence, a single request-to-send (RTS) frame for the plurality of STAs in the MU-MIMO group, the single RTS frame being addressed only to the selected STA; receiving, at the access point and from the selected STA as part of the protection of the sounding sequence, a single clear-to-send (CTS) frame for the plurality of STAs in the MU-MIMO group; performing, in response to receiving the single CTS frame from the selected STA, the sounding sequence in which the plurality of STAs in the MU-MIMO group participate; and transmitting, after completion of the sounding sequence, the MU-MIMO data communications to at least one of the plurality of STAs in the MU-MIMO group. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. An access point for wireless communications, comprising:
-
means for detecting a condition that triggers a protection of a sounding sequence for multiple-input-multiple-output (MU-MIMO) data communications of an MU-MIMO group; means for selecting in response to the triggering of the protection of the sounding sequence, a single wireless station (STA) from a plurality of STAs in the MU-MIMO group as an intended STA for the protection of the sounding sequence, the selected STA being selected based on one of several different selection criteria; means for transmitting as part of the protection of the sounding sequence a single request-to-send (RTS) frame for the plurality of STAs in the MU-MIMO group, the single RTS frame being addressed only to the selected STA; means for receiving, from the selected STA and as part of the protection of the sounding sequence, a single clear-to-send (CTS) frame for the plurality of STAs in the MU-MIMO group; means for performing, in response to receiving the single CTS frame from the selected STA, the sounding sequence in which the plurality of STAs in the MU-MIMO group participate; and means for transmitting, after completion of the sounding sequence, the MU-MIMO data communications to at least one of the plurality of STAs in the MU-MIMO group.
-
-
31. A non-transitory computer-readable medium storing computer executable code for wireless communications, the code comprising:
-
code for detecting a condition that triggers a protection of a sounding sequence for multiple-input-multiple-output (MU-MIMO) data communications of an MU-MIMO group; code for selecting in response to the triggering of the protection of the sounding sequence, a single wireless station (STA) from a plurality of STAs in the MU-MIMO group, the selected STA being selected based on one of several different selection criteria; code for transmitting as part of the protection of the sounding sequence a single request-to-send (RTS) frame for the plurality of STAs in the MU-MIMO group, the RTS frame being addressed only to selected STA; code for receiving, from the selected STA and as part of the protection of the sounding sequence, a single clear-to-send (CTS) frame for the plurality of STAs in the MU-MIMO group; code for performing, in response to receiving the single CTS frame from the selected STA, the sounding sequence in which the plurality of STAs in the MU-MIMO group participate; and code for transmitting, after completion of the sounding sequence, the MU-MIMO data communications to at least one of the plurality of STAs in the MU-MIMO group.
-
Specification