Aperiodic channel state information (CSI) reporting for carrier aggregation

    公开(公告)号:US09883491B2

    公开(公告)日:2018-01-30

    申请号:US14708545

    申请日:2015-05-11

    Abstract: Aperiodic channel state information (CSI) reporting is discussed. An example user equipment includes a receiver circuit, processor, and transmitter circuit. The receiver circuit receives transmissions from a plurality of serving cells via a carrier aggregation (CA) mode and receives an aperiodic CSI reporting request indicating a set for CSI reporting. The plurality of serving cells comprises at least six serving cells, and one or more of the plurality is associated with the indicated set. The processor is operably coupled to the receiver circuit and calculates one or more CSI parameters for each serving cell of the plurality that is associated with the indicated set; and generates an aperiodic CSI report based at least in part on the calculated CSI parameters for each serving cell associated with the indicated set. The transmitter circuit transmits the aperiodic CSI report to an Evolved NodeB (eNB) via a physical uplink shared channel (PUSCH).

    Method and system for beam alignment on directional wireless links

    公开(公告)号:US09813131B2

    公开(公告)日:2017-11-07

    申请号:US15128073

    申请日:2014-07-28

    CPC classification number: H04B7/0617 H04B7/063

    Abstract: Embodiments of a system and method for simultaneous high-speed multi-user beam tracking in a Wireless Network are generally described herein. A transmitting station (STA) may be configured to support directional wireless links with multiple receiving STAs in a high-mobility millimeter-wave (mm Wave) wireless network. The transmitting STA may include hardware processing circuitry configured to, for each of the multiple receiving STAs, transmit a packet over a directional wireless link between the transmitting STA and the receiving STA and receive transmit antenna performance metrics from the receiving STA. The packet may include a data portion, a receive training sequence, and a transmit training sequence that occupy different portions of the packet, and the transmission of the packet over the directional wireless link may include transmission of the data portion of the packet according to a current transmit antenna direction associated with the directional wireless link.

    METHOD AND SYSTEM FOR BEAM ALIGNMENT ON DIRECTIONAL WIRELESS LINKS

    公开(公告)号:US20170111095A1

    公开(公告)日:2017-04-20

    申请号:US15128073

    申请日:2014-07-28

    CPC classification number: H04B7/0617 H04B7/063

    Abstract: Embodiments of a system and method for simultaneous high-speed multi-user beam tracking in a Wireless Network are generally described herein. A transmitting station (STA) may be configured to support directional wireless links with multiple receiving STAs in a high-mobility millimeter-wave (mm Wave) wireless network. The transmitting STA may include hardware processing circuitry configured to, for each of the multiple receiving STAs, transmit a packet over a directional wireless link between the transmitting STA and the receiving STA and receive transmit antenna performance metrics from the receiving STA. The packet may include a data portion, a receive training sequence, and a transmit training sequence that occupy different portions of the packet, and the transmission of the packet over the directional wireless link may include transmission of the data portion of the packet according to a current transmit antenna direction associated with the directional wireless link.

    Enhanced listen-before-talk (LBT) for unlicensed band operation with cell splitting

    公开(公告)号:US09615279B2

    公开(公告)日:2017-04-04

    申请号:US14740563

    申请日:2015-06-16

    Inventor: Alexei Davydov

    Abstract: Techniques of enhanced listen-before-talk (LBT) at an Evolved NodeB (eNB) are discussed. An example apparatus within an eNB implementing such techniques comprises a receiver circuit, processor, and transmitter circuit. The receiver circuit is configured to receive a set of signals over a selected frequency band. The processor is configured to determine a subset of the set via an energy detection metric; determine, for each signal of the subset, whether that signal comprises one of a plurality of Long Term Evolution (LTE) reference signals (RSs); and implement a back-off procedure in response to a determination that at least one signal of the subset does not comprise one of the plurality of LTE RSs. The transmitter is configured to transmit a transmission comprising a first RS of the plurality of LTE RSs in response to a determination that each signal of the subset comprises one of the plurality of LTE RSs.

    Interference reduction using hybrid signaling
    270.
    发明授权
    Interference reduction using hybrid signaling 有权
    使用混合信令进行干扰减少

    公开(公告)号:US09577778B2

    公开(公告)日:2017-02-21

    申请号:US14582346

    申请日:2014-12-24

    Abstract: Technology for reducing signal interference is disclosed. Semi-static signaling can be received at a user equipment (UE) from a neighboring evolved node (eNB). The semi-static signaling can include potential configurations of signal parameters used at the neighboring eNB. The UE can receive dynamic signaling from the neighboring eNB that includes a subset of the potential configurations of signal parameters used at the neighboring eNB. Signal interference that is caused by the neighboring eNB can be reduced using the semi-static signaling and the dynamic signaling.

    Abstract translation: 公开了用于减少信号干扰的技术。 可以在来自相邻演进节点(eNB)的用户设备(UE)处接收半静态信令。 半静态信令可以包括在相邻eNB处使用的信号参数的潜在配置。 UE可以从相邻eNB接收包括在相邻eNB处使用的信号参数的潜在配置的子集的动态信令。 可以使用半静态信令和动态信令来减少由相邻eNB引起的信号干扰。

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