Energy detection threshold adaptation for licensed assisted access of LTE in unlicensed band

    公开(公告)号:US10542460B2

    公开(公告)日:2020-01-21

    申请号:US15751127

    申请日:2015-12-26

    Abstract: When performing a contention protocol, such as Listen-Before-Talk (LBT), an Long Term Evolution (LTE)-Licensed Assisted Access (LAA) node dynamically adapts the ED threshold used by the LTE-LAA node depending on whether other transmission nodes are detected at the frequency components that are to be used by the LTE-LAA node. In one implementation, the ED threshold value may initially be set to a conservative value, and when other transmissions nodes are not detected, the ED threshold value may be set to a more aggressive value. In another implementation, the ED threshold value may initially be set to a more aggressive value, and only when another transmission node is detected, the ED threshold value may be set to a more conservative value. In yet another possible implementation, the ED threshold value and the transmit power may be proportionally modified, for a particular UE, based on a parameter associated with the UE.

    ENHANCED RETRY COUNT FOR UPLINK MULTI-USER TRANSMISSION

    公开(公告)号:US20190296862A1

    公开(公告)日:2019-09-26

    申请号:US16255436

    申请日:2019-01-23

    Abstract: This disclosure describes systems, methods, and devices related to enhanced retry count for an uplink (UL) multi-user (MU) transmission. A device may identify a trigger frame received from a first device on a wireless communication channel. The device may determine a quality of service counter associated with an access category. The device may cause to send a frame to the first device based at least in part on the trigger frame. The device may determine an error condition associated with the frame. The device may refrain from incrementing the quality of service counter based on the error condition.

    Enhanced location determination of wireless devices

    公开(公告)号:US10368332B2

    公开(公告)日:2019-07-30

    申请号:US15681913

    申请日:2017-08-21

    Abstract: This disclosure describes systems, methods, and devices related to enhanced location determination. A device may cause to exchange one or more capabilities information with one or more station devices. The device may cause to assign one or more unassociated identifications (UIDs) to one or more unassociated station devices of the one or more station devices to participate in location determination of the one or more unassociated station devices. The device may cause to send a trigger frame comprising at least one of the one or more UIDs; wherein the trigger frame contains one or more resource assignments. The device may identify one or more sounding information from at least one of the one or more station devices.

    Basic service set identifications for using non-default spatial reuse parameters

    公开(公告)号:US10366064B2

    公开(公告)日:2019-07-30

    申请号:US15598907

    申请日:2017-05-18

    Abstract: Apparatuses, methods, computer readable media for basic service set (BSS) identifications for using non-default spatial reuse parameters. An apparatus including memory configured to store one or more bitmaps including at least one of a spatial reuse (SR) group (SRG) basic service set (BSS) color bitmap and a SRG Partial BSS identification (ID)(BSSID) Bitmap, and processing circuitry configured to: decode an inter-BSS physical layer convergence procedure (PLCP) protocol data unit (PPDU). The processing circuitry may be further configured to determine the inter-BSS PPDU to be a SRG PPDU if: the inter-BSS PPDU comprises a BSS color field and a bit of the SRG BSS color bitmap corresponding to a value of the BSS color field is set; or a BSSID field is identified for the inter-BSS PPDU, and a bit of the SRG Partial BSSID bitmap corresponding to a value of a partial BSSID of the BSSID is set.

    Station (STA), access point (AP) and method of spatial reuse

    公开(公告)号:US10244543B2

    公开(公告)日:2019-03-26

    申请号:US15391431

    申请日:2016-12-27

    Abstract: Embodiments of a station (STA), access point (AP) and method for determination of transmit power for spatial reuse are generally described herein. The STA may detect, in the channel, an overlapping basic service set (OBSS) physical layer convergence procedure protocol data unit (PPDU) from an OBSS AP. The STA may determine, based at least partly on an ESS color parameter included in the OBSS PPDU, whether the OBSS AP is included in the ESS network. The STA may determine an OBSS power threshold based at least partly on whether the OBSS AP is included in the ESS network. The STA may determine, based at least partly on a comparison between the OBSS power threshold and a received power of the OBSS PPDU, whether to transmit an uplink PPDU to the BSS AP in the channel during the TXOP.

    Multi-user request-to-send clear-to-send (CTS) with null data packets CTS and response polling

    公开(公告)号:US10148404B2

    公开(公告)日:2018-12-04

    申请号:US15378937

    申请日:2016-12-14

    Abstract: Methods, apparatuses, computer readable media for multi-user (MU) request-to-send (RTS) and clear-to-send (CTS) with null data packet (NDP) CTSs and response polling. An apparatus of a wireless device comprising processing circuitry is disclosed. The processing circuitry may be configured to encode a MU-RTS including station identifications and indications of 20 MHz channels for the stations to transmit CTSs. The processing circuitry may be configured to configure the access point to transmit the MU-RTS. The processing circuitry may be configured to encode a trigger frame for polling, the trigger frame including the station identifications and indications of short feedback resource units for the stations identified by the station identifications. The processing circuitry may be configured to decode short feedback from the stations in accordance with the short feedback resource units where the short feedback is in response to the trigger frame for polling and the MU-RTS.

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