Apparatus and method for full-dimensional MIMO with one-dimensional CSI feedback

    公开(公告)号:US10181888B2

    公开(公告)日:2019-01-15

    申请号:US15504232

    申请日:2014-09-28

    Abstract: Methods and corresponding apparatuses for wireless communication are disclosed. The method for wireless communication includes dividing a two-dimensional antenna array to a plurality of sub-arrays, mapping the two-dimensional antenna array into a one-dimensional vertical channel state information reference signal (CSI-RS) port array for receiving elevation CSI feedback and a one-dimensional horizontal CSI-RS port array for receiving azimuth CSI feedback, and transmitting one or more elevation CSI-RS from the one-dimensional vertical CSI-RS port array and one or more azimuth CSI-RS from the one-dimensional horizontal CSI-RS port array. Methods and corresponding apparatuses for CSI feedback mechanism are also disclosed.

    WIRELESS DEVICE INCLUDING SYSTEM-ON-A-CHIP HAVING LOW POWER CONSUMPTION
    162.
    发明申请
    WIRELESS DEVICE INCLUDING SYSTEM-ON-A-CHIP HAVING LOW POWER CONSUMPTION 审中-公开
    无线设备,包括具有低功耗的片上系统

    公开(公告)号:US20140281623A1

    公开(公告)日:2014-09-18

    申请号:US13837691

    申请日:2013-03-15

    CPC classification number: G06F1/3234 G06F1/3209

    Abstract: A wireless station is disclosed that may quickly enter and/or exit a sleep state and that may reduce power consumption associated with waking up from the sleep state to perform selected low power operations by performing such operations using a set of first instructions stored within an internal memory of the station's processor. If more complex operations such as processing downlink data received from an access point are subsequently desired, then the processor may jump to execution of a set of second instructions stored in an external memory that is coupled to the processor.

    Abstract translation: 公开了可以快速进入和/或退出睡眠状态的无线站,并且可以减少与从休眠状态唤醒相关联的功耗以通过使用存储在内部中的一组第一指令来执行所选择的低功率操作 记忆站的处理器。 如果随后期望诸如处理从接入点接收的下行链路数据的更复杂的操作,则处理器可以跳转到存储在耦合到处理器的外部存储器中的一组第二指令的执行。

    Spatial relation update across multiple component carriers

    公开(公告)号:US12301514B2

    公开(公告)日:2025-05-13

    申请号:US17756701

    申请日:2020-12-16

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. A base station (BS) may configure a component carrier group for a user equipment (UE). The BS may provide an indication of a spatial relation for one or more sounding reference signals associated with a component carrier of the component carrier group. The UE may receive the indication and may apply the spatial relation to the one or more sounding reference signals across bandwidth parts of component carriers of the component carrier group.

    Radial modes for OAM MIMO communication

    公开(公告)号:US12284012B2

    公开(公告)日:2025-04-22

    申请号:US18286956

    申请日:2021-06-17

    Abstract: An example aspect comprises selecting an azimuth mode for an OAM MIMO transmission by a transmitter that includes a first number of circles that each include a second number of antenna elements, wherein the azimuth mode defines a DFT vector of a size less than or equal to the second number; selecting, from a plurality of radial modes associated with the azimuth mode, a radial mode for the transmission, wherein the radial modes include at least a first radial mode defining a first beamforming vector and a second radial mode defining a second beamforming vector, wherein each one of the first and second beamforming vectors includes the DFT vector weighted and repeated for a number of times less than or equal to the first number, wherein the first and second beamforming vectors are orthogonal to each other; and transmitting a signal using a beam configured according to the radial mode.

    Uplink preemption indication for full-duplex based IAB

    公开(公告)号:US12273298B2

    公开(公告)日:2025-04-08

    申请号:US17628009

    申请日:2019-08-01

    Abstract: Aspects of the present disclosure provide techniques for transmitting an uplink preemption indication in an integrated access and backhaul (IAB) system identifying the resources or symbols that may be punctured by the IAB in order to minimize self-interference at an IAB node when an ultra-reliable-low latency communications (URLLC) packet is received at the IAB node from one of a child IAB node or a user equipment (UE) during an on-going uplink transmission from an IAB node to a parent backhaul node.

    Sounding reference signal (SRS) antenna switching for multiple transceiver user equipment (UE)

    公开(公告)号:US12218721B2

    公开(公告)日:2025-02-04

    申请号:US18020248

    申请日:2020-08-07

    Abstract: A method of wireless communication, by a user equipment (UE) supporting a four transmitter/six receiver (4T6R) antenna configuration, reports a sounding reference signal (SRS) switching capability. The method receives an SRS antenna switching configuration, and performs SRS antenna switching while transmitting multiple SRSs via SRS resources with multiple transmitters for different antenna ports, in accordance with the SRS antenna switching configuration. At least one of the different antenna ports may use at least two of the SRS resources. A quantity of the different antenna ports assigned to each SRS resource may be different for the SRS antenna switching. The UE may sound the different antenna ports an equal number of times, and at least one of the different antenna ports may use at least two of the SRS resources for the SRS antenna switching.

    Configurations for omitting channel state information

    公开(公告)号:US12191953B2

    公开(公告)日:2025-01-07

    申请号:US17763241

    申请日:2019-09-27

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to use one or more channel state information (CSI) omission configurations for omitting portions of a CSI report. For example, a UE may receive a trigger to report CSI, and the UE may identify that a payload of the CSI report exceeds a capacity of resources for transmitting the report. As such, the UE may determine to use one or more CSI omission configurations, where each CSI omission configuration may correspond to dropping different portions of the CSI report. The selection of the CSI omission configuration to use may be based on a set of parameters associated with CSI reporting. In some cases, the UE selects the CSI omission configuration based on an explicit indication from the base station. Additionally or alternatively, the UE may implicitly determine the CSI omission configuration based on the parameters.

    Interference layer categorization and non zero power interference measurement resource for non linear precoding

    公开(公告)号:US12184362B2

    公开(公告)日:2024-12-31

    申请号:US17262441

    申请日:2019-08-13

    Abstract: Methods, systems, and devices for wireless communications are described. In one aspect, the described techniques provide for identifying interference signals on multiple layers or resources and determining whether the interference signals transmitted on a particular layer or resource were precoded using linear precoding (LP) or NLP. In this aspect, a receiving device may equalize signals received from a transmitting device (e. g., filter out interference signals) based on determining whether the interference signals were precoded using a first type of precoding (e. g., linear precoding (LP)) or a second type of precoding (e. g., NLP). In another aspect, the described techniques provide for performing interference measurements on signals precoded using NLP based on categorizing interference resources as being precoded using LP or NLP. In this aspect, a receiving device may perform and report measurements differently for interference signals precoded using LP and interference signals precoded using NLP.

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