Methods and apparatus for beamforming feedback in wireless systems

    公开(公告)号:US10143003B2

    公开(公告)日:2018-11-27

    申请号:US15293230

    申请日:2016-10-13

    Abstract: A method, station (STA), and access point (AP) for transmitting in a WLAN. A station includes a controller and a transceiver, the transceiver configured to receive, from an AP, a channel sounding sequence including a null data packet announcement frame (NDPA) including information indicating STAs to transmit a feedback report, a null data packet (NDP) containing pilots to compute the feedback report and a trigger frame (TF) to trigger transmission of the feedback report. An AP includes a controller and a transceiver, the controller configured to generate a NDPA including information indicating STAs to transmit a feedback report, a NDP containing pilots to compute the feedback report, and a TF to trigger transmission of the feedback report from at least one of the STAs, and the transceiver is operably connected to the controller and configured to transmit a channel sounding sequence that includes the NDPA, the NDP, and the TF.

    Method and apparatus for short handover latency in wireless communication system using beam forming
    7.
    发明授权
    Method and apparatus for short handover latency in wireless communication system using beam forming 有权
    使用波束形成的无线通信系统中短切换延迟的方法和装置

    公开(公告)号:US09560561B2

    公开(公告)日:2017-01-31

    申请号:US14605750

    申请日:2015-01-26

    Abstract: Beam selection is provided. A method for handover in a mobile station includes sending a scan request message for scanning a downlink (DL) beam with respect to a serving base station (BS) and a neighboring BS, to the serving BS, and receiving a scan response message; determining the DL beam for the MS by performing scanning with the serving BS and the neighboring BS based on the scan response message; sending a scan report message comprising a result of the scanning to the serving BS; when receiving an air-HO request message from the serving BS, generating an air-HO response message comprising information of a neighboring BS to which the MS hands over based on the air-HO request message; performing beam selection with the neighboring BS of the handover based on the air-HO request message; and performing the handover.

    Abstract translation: 提供光束选择。 一种用于在移动台中进行切换的方法包括向服务BS发送扫描请求消息,用于扫描关于服务基站(BS)和相邻BS的下行链路(DL)波束,并接收扫描响应消息; 通过基于扫描响应消息与服务BS和相邻BS执行扫描来确定MS的DL波束; 向服务BS发送包括扫描结果的扫描报告消息; 当从所述服务BS接收到空气HO请求消息时,基于所述空气HO请求消息,生成包括所述MS切换到的相邻BS的信息的空中HO响应消息; 基于空气HO请求消息与切换的相邻BS执行波束选择; 并执行切换。

    Method and apparatus for random access in communication system with large number of antennas
    8.
    发明授权
    Method and apparatus for random access in communication system with large number of antennas 有权
    具有大量天线的通信系统中的随机接入方法和装置

    公开(公告)号:US09468022B2

    公开(公告)日:2016-10-11

    申请号:US14133483

    申请日:2013-12-18

    CPC classification number: H04W74/0833 H04B7/0617

    Abstract: A method for performing random access by a User Equipment (UE) in a wireless network, comprises configuring at least one UE transmit beam for a transmission of a random access signal, generating the at least one UE transmit beam using an antenna array according to the configuration, and transmitting the random access signal to a base station (BS) on the at least one UE transmit beam. An user equipment for performing random access in a wireless network, the User Equipment comprises a processing circuit configured to configure at least one UE transmit beam for a transmission of a random access signal, and generate the at least one UE transmit beam using an antenna array according to the configuration, and transmit the random access signal to the Base Station (BS) on the at least one UE transmit beam.

    Abstract translation: 一种用于在无线网络中执行用户设备(UE)的随机接入的方法,包括:配置至少一个UE发射波束用于随机接入信号的传输,根据所述方法使用天线阵列生成所述至少一个UE发射波束 配置,并且将所述随机接入信号发送到所述至少一个UE发射波束上的基站(BS)。 一种用于在无线网络中执行随机接入的用户设备,所述用户设备包括处理电路,其被配置为配置至少一个UE发射波束用于随机接入信号的传输,并且使用天线阵列生成所述至少一个UE发射波束 并且根据所述配置将所述随机接入信号发送到所述至少一个UE发射波束上的所述基站(BS)。

    Method and apparatus for wireless communication on multiple spectrum bands
    9.
    发明授权
    Method and apparatus for wireless communication on multiple spectrum bands 有权
    用于多个频谱带上的无线通信的方法和装置

    公开(公告)号:US09468015B2

    公开(公告)日:2016-10-11

    申请号:US14282673

    申请日:2014-05-20

    Abstract: A method and apparatus for simultaneously communicating on at least two carrier frequencies, of which at least one carrier frequency is a licensed band and at least one carrier frequency is an unlicensed band, includes broadcasting an operating status of the unlicensed band to a receiver device, collecting feedback data regarding channel conditions from the receiver device for both the licensed band and unlicensed band, determining, when a bandwidth request is received from the receiver device, whether to use the unlicensed band based on the channel conditions, transmitting an unlicensed band scheduling indication to the receiver device, and communicating with the receiver device using both the licensed band and the unlicensed band according to the transmitted unlicensed band scheduling indication.

    Abstract translation: 一种用于在至少两个载波频率上同时通信的方法和装置,其中至少一个载波频率是许可频带,并且至少一个载波频率是非许可频带,包括将接收机设备广播未许可频带的操作状态, 从所述接收机设备收集关于所述许可频带和未许可频带的信道条件的反馈数据,当从所述接收机设备接收到带宽请求时,确定是否基于所述信道条件使用所述未许可频带,发送未许可频带调度指示 并且根据发送的未许可频带调度指示,使用许可频带和非许可频带与接收机设备进行通信。

    MANAGEMENT OF UPLINK MULTI-USER TRANSMISSIONS IN WIRELESS LOCAL AREA NETWORKS
    10.
    发明申请
    MANAGEMENT OF UPLINK MULTI-USER TRANSMISSIONS IN WIRELESS LOCAL AREA NETWORKS 审中-公开
    无线局域网中上网多用户传输的管理

    公开(公告)号:US20160227533A1

    公开(公告)日:2016-08-04

    申请号:US14992996

    申请日:2016-01-11

    CPC classification number: H04W74/006 H04W74/06 H04W74/0808 H04W84/12

    Abstract: A method, station, and access point for transmitting in a wireless local area network. A method for operating the station includes receiving a beacon signal from an access point in the wireless local area network. The method also includes identifying from the beacon signal a target transmission time of a trigger frame to be transmitted by the access point for an uplink multi-user transmission. A method for operating the access point includes transmitting, to one or more stations in the wireless local area network, a beacon signal that indicates a target transmission time of a trigger frame to be transmitted by the access point for an uplink multi-user transmission.

    Abstract translation: 用于在无线局域网中发送的方法,站和接入点。 一种用于操作站的方法包括从无线局域网中的接入点接收信标信号。 该方法还包括从信标信号中识别由上行链路多用户传输的接入点发送的触发帧的目标传输时间。 一种用于操作接入点的方法,包括向无线局域网中的一个或多个站发送指示由上行链路多用户传输的接入点发送的触发帧的目标传输时间的信标信号。

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