Enhancing monitoring of multiple physical downlink control channels in beam based system

    公开(公告)号:US10666400B2

    公开(公告)日:2020-05-26

    申请号:US16125134

    申请日:2018-09-07

    Abstract: In accordance with an example embodiment, there is disclosed a method comprising: transmitting a first downlink channel via a primary beam within n slots, wherein n is a time between the transmission of an uplink control channel carrying HARQ information corresponding to the first downlink channel transmitted via the primary beam and a next time instance that a second downlink channel is configured be monitored from a secondary beam; receiving HARQ feedback within m slots calculated from a slot number configured to monitor the second downlink channel on at least one secondary beam, wherein m is time between a scheduled downlink channel and a next downlink channel monitoring instance via the secondary beam; and in response to receiving the HARQ feedback, ignoring a monitored downlink channel pattern and scheduling at least one user device using the primary beam on the slot number configured to monitor the second downlink channel on the at least one secondary beam.

    Robust control channel transmission scheme

    公开(公告)号:US10484983B2

    公开(公告)日:2019-11-19

    申请号:US15873066

    申请日:2018-01-17

    Abstract: Signaling is received (or transmitted) to configure a UE with multiple transmit beams, each for receiving beam-specific DCI. A beam-specific current DCI is received at the UE (or transmitted from a network) on the transmit beam(s), including information about beam-specific previous DCIs transmitted to the UE on any of the multiple transmit beams within a predefined time window preceding a time unit in which the current DCI was received. Information about the beam-specific previous DCIs is used to determine that at least one of the multiple transmit beams has been blocked. Each of the multiple transmit beams that have been determined to be blocked is reported to (and received by) the network. In response to receiving from the UE a report indicating at least one multiple transmit beams has been blocked, the network reconfigures the UE with a different set of multiple transmit beams each for beam-specific DCI.

    Reference signal indications for massive MIMO networks

    公开(公告)号:US10218424B2

    公开(公告)日:2019-02-26

    申请号:US15861406

    申请日:2018-01-03

    Abstract: A method is provided including transmitting a reference signal on a downlink beam to a UE; receiving from the UE a reference signal sequence; determining from the received reference signal sequence at least a preferred uplink beam to pair with the downlink beam; sending downlink signaling to the UE on at least the downlink beam; and receiving uplink signaling from the UE on at least the preferred uplink beam. A further method is provided including receiving a reference signal from a network on a downlink beam; selecting at least one preferred uplink beam to match the downlink beam; selecting a reference signal sequence that corresponds to the selected at least one preferred uplink beam; transmitting the selected reference signal sequence to the network; receiving downlink signaling from the network on at least the downlink beam; and transmitting uplink signaling to the network on the at least one preferred uplink beam.

    METHODS AND APPARATUS FOR INTERFERENCE MANAGEMENT
    65.
    发明申请
    METHODS AND APPARATUS FOR INTERFERENCE MANAGEMENT 审中-公开
    干扰管理方法与装置

    公开(公告)号:US20160044650A1

    公开(公告)日:2016-02-11

    申请号:US14820159

    申请日:2015-08-06

    Abstract: Systems and techniques for interference management. A set of CSI-RS subframe configurations is established, and a mapping specified associating each CSI-RS subframe configuration with a corresponding CSI-RS configuration subset indicator, such that the CSI-RS configuration subset indicator identifies allowed CSI-RS subframe configurations at a first base station. The specified mapping is stored at the base station, and the configuration subset indicator is signaled to neighboring base stations. In response to receiving one or more CSI-RS configuration subset indicators at a user device from a serving base station, a determination is made for each of plurality of subframes whether one or more CSI-RS subframe configurations represented by the one or more CSI-RS configuration subset indicators indicates a CSI-RS presence in the subframe. If the one or more subframe configurations indicates a CSI-RS presence, at least partially clean resource element (RE) cancellation interference is applied in the subframe.

    Abstract translation: 干扰管理系统和技术。 建立一组CSI-RS子帧配置,以及映射,指定将每个CSI-RS子帧配置与对应的CSI-RS配置子集指示符相关联,使得CSI-RS配置子集指示符识别在 第一基站。 指定的映射被存储在基站处,并且配置子集指示符被发送到相邻的基站。 响应于从服务基站在用户设备处接收到一个或多个CSI-RS配置子集指示符,对于多个子帧中的每一个,确定由一个或多个CSI- RS配置子集指示符指示子帧中的CSI-RS存在。 如果一个或多个子帧配置指示CSI-RS存在,则在子帧中应用至少部分干净的资源元素(RE)抵消干扰。

    SOUNDING REFERENCE SIGNAL POWER CONTROL FOR MULTIPLE INPUT MULTIPLE OUTPUT WIRELESS SYSTEM

    公开(公告)号:US20240323858A1

    公开(公告)日:2024-09-26

    申请号:US18637006

    申请日:2024-04-16

    CPC classification number: H04W52/146 H04W52/325

    Abstract: A technique includes selecting, by a user device independently for each of a plurality of sounding reference signal resources, an uplink data channel power control parameter set for an uplink data channel beam pair to be used to adjust a sounding reference signal transmission power for a sounding reference signal beam pair, adjusting, by the user device for each sounding reference signal resource based on a selected uplink data channel power control parameter set, a sounding reference signal transmission power for a sounding reference signal, and transmitting, by the user device, each of a plurality of power-adjusted sounding reference signals via a corresponding sounding reference signal resource and a corresponding sounding reference signal beam pair.

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