SCHEDULING USER EQUIPMENT IN THE UNLICENSED BAND

    公开(公告)号:US20190387534A1

    公开(公告)日:2019-12-19

    申请号:US16465053

    申请日:2017-11-16

    Abstract: A method of scheduling user equipment, a multiple antenna network node and computer program are disclosed. The method comprises: estimating at least one access network node channel within the unlicensed band between at least one access node operable to transmit in the unlicensed band, such as a WiFi Access Point, and the multiple antenna network node. Estimating a plurality of user equipment channels within the unlicensed band between a plurality of user equipment and the multiple antenna network node. Determining a degree of channel correlation of each of the plurality of user equipment channels and the at least one access node channel. Selecting at least one of the multiple user equipment to be scheduled, using the degree of channel correlation as a selection parameter, a lower degree of channel correlation increasing a user equipment's chance of being selected. In this manner the interference that LTE transmissions from and to scheduled UEs create on the at least one access node is reduced.

    Spatial reuse for hidden node scenario

    公开(公告)号:US12250030B2

    公开(公告)日:2025-03-11

    申请号:US17633903

    申请日:2019-08-30

    Abstract: This document discloses a solution for enabling spatial cooperation in a hidden node scenario. According to an aspect, a method comprises: detecting, by a station of a first wireless network managed by a first access node, that a second access node of a second wireless network is hidden to the first access node; in response to the detecting, transmitting by the station a spatial cooperation request message to the second access node; receiving, by the station from the second access node as a response to the spatial cooperation request message, a spatial cooperation response message comprising at least one information element acknowledging spatial cooperation; after receiving the spatial cooperation response message, receiving by the station a frame from the first access node while the second access node is transmitting another frame and while null steering is performed between the apparatus and the second access node.

    Scheduling user equipment in the unlicensed band

    公开(公告)号:US11265889B2

    公开(公告)日:2022-03-01

    申请号:US16465053

    申请日:2017-11-16

    Abstract: A method of scheduling user equipment, a multiple antenna network node and computer program are disclosed. The method comprises: estimating at least one access network node channel within the unlicensed band between at least one access node operable to transmit in the unlicensed band, such as a WiFi Access Point, and the multiple antenna network node. Estimating a plurality of user equipment channels within the unlicensed band between a plurality of user equipment and the multiple antenna network node. Determining a degree of channel correlation of each of the plurality of user equipment channels and the at least one access node channel. Selecting at least one of the multiple user equipment to be scheduled, using the degree of channel correlation as a selection parameter, a lower degree of channel correlation increasing a user equipment's chance of being selected. In this manner the interference that LTE transmissions from and to scheduled UEs create on the at least one access node is reduced.

    Coexistence of devices in wireless network

    公开(公告)号:US12207297B2

    公开(公告)日:2025-01-21

    申请号:US17798995

    申请日:2020-12-22

    Abstract: Method for channel contention and data frame transmission in a wireless network. Said method for an apparatus of a first wireless network comprises: operating the apparatus on at least a first channel and a second channel of the first wireless network; while performing said operating in a first operating mode to transmit a first data frame to a receiver apparatus of the first wireless network, contending (202) simultaneously on both the first channel and the second channel and transmitting (206, 208) the first data frame on the one of the first channel and second channel where said contending is first successful; switching from the first operating mode to a second operating mode; while operating in the second operating mode to transmit a second data frame to the receiver apparatus, contending (212) simultaneously on both the first channel and the second channel and transmitting (216, 218, 220) the second data frame to the receiver apparatus according to the following conditions: in response to successful contention on the first channel before successful contention on the second channel, transmitting the second data frame to the receiver apparatus on the first channel; and in response to successful contention on the second channel before successful contention on the first channel, transmitting the second data frame on the second channel if the contention becomes successful also on the first channel or if the first channel is reserved to an apparatus of a second wireless network different from the first wireless network while the second data frame is transmitted.

    Cooperative beamforming in wireless network

    公开(公告)号:US12040851B2

    公开(公告)日:2024-07-16

    申请号:US17297843

    申请日:2019-01-11

    Abstract: This document discloses a solution for performing internetwork beamforming cooperation. According to an aspect, a method comprises: establishing, by a first access node (112) of a first wireless network, internetwork beamforming with a second access node (110) of a second wireless network, wherein the establishment indicates at least one station (102) of the second wireless network; in response to said establishing, transmitting by the first access node (112) a channel sounding signal; receiving, by the first access node (112) from the at least one station (102) of the second wireless network, a beamforming report comprising channel state information measured from the channel sounding signal; and performing, by the first access node (112), null steering beamforming transmission in the first wireless network on the basis of the received channel state information.

    Spatial reuse for wireless network

    公开(公告)号:US11956037B2

    公开(公告)日:2024-04-09

    申请号:US17770672

    申请日:2020-09-29

    CPC classification number: H04B7/0608

    Abstract: According to an example aspect of the present invention, there is provided a method, including receiving, by a wireless device of a first wireless network, a control request frame from a second access node of a second wireless network, the control request frame including at least a number of nulls for the wireless device. The wireless device selects a subset of antenna elements, wherein the number of antenna elements is in accordance with the number of nulls for the wireless device, and the antenna elements are selected based on reception powers of antenna elements of at least a frame from a first access node of the first wireless network and/or the second access node of the second wireless network. The wireless device transmits a control response frame with the selected antenna elements, and a data frame to the first access node with the selected antenna elements.

    Method and apparatus for improving reliable and low-latency communication uplink transmission in the unlicensed spectrum

    公开(公告)号:US12273733B2

    公开(公告)日:2025-04-08

    申请号:US17770834

    申请日:2019-10-22

    Abstract: A system in wireless network including an Access Point utilizing at least an unlicensed first wireless interface; a Station utilizing at least a first unlicensed wireless interface, transmitting in uplink to the AP; Said at least one STA further includes a secondary wireless interface different from the first unlicensed wireless interface, said STA is configured to, determine that transmission of a message be in a secondary wireless interface of the STA when it is utilized for Reliable and Low Latency Communication RLLC data transmission, generate a message and then transmit the message to a serving AP. Said AP is configured to, when receiving the message from the STA, determine whether information will be generated based on the message received from the STA, generate at least scheduling information and transmit the generated information to the STA.

    Sharing transmission opportunity with beamforming

    公开(公告)号:US11658705B2

    公开(公告)日:2023-05-23

    申请号:US17594959

    申请日:2019-05-09

    CPC classification number: H04B7/024 H04B7/0617 H04B7/0626 H04L25/0224

    Abstract: This document discloses a solution for sharing a transmission opportunity in a wireless network. According to an aspect, a method for an apparatus of a first wireless network includes determining a plurality of devices of a second wireless network for null steering; transmitting a trigger frame, the trigger frame indicating a transmission period for data frame transfer between the apparatus and another apparatus of the first wireless network, a spatial reuse opportunity for the second wireless network during the transmission period, and an additional period preceding the transmission period; receiving, from at least one device of the second wireless network during the additional period, a channel state frame; and performing, based on the channel state frame, null steering towards the at least one device during the transmission period.

Patent Agency Ranking