DYNAMIC SIGNALING OF THE DOWNLINK AND UPLINK SUBFRAME ALLOCATION FOR A TDD WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210266131A1

    公开(公告)日:2021-08-26

    申请号:US17316393

    申请日:2021-05-10

    Abstract: An apparatus for use in a wireless communication network, comprising a processing resource configured to determine a time interval for periodic time division duplex (TDD) Uplink/Downlink (UL/DL) reconfiguration windows, generate a UL/DL reconfiguration command to indicate a dynamic TDD UL/DL allocation change, and encode the UL/DL reconfiguration command in a physical downlink control channel (PDCCH) data, and a radio front end (RF) interface coupled to the processing resource and configured to cause the encoded UL/DL reconfiguration command to be transmitted to a first of a plurality of wireless user equipment (UEs) in a first of the UL/DL reconfiguration windows, wherein the encoded UL/DL reconfiguration command is transmitted via a PDCCH to provide a fast TDD UL/DL reconfiguration.

    NETWORK SIGNALING FOR NETWORK-ASSISTED INTERFERENCE CANCELLATION AND SUPPRESSION

    公开(公告)号:US20190334645A1

    公开(公告)日:2019-10-31

    申请号:US16505066

    申请日:2019-07-08

    Abstract: Embodiments of the invention are directed to a cellular communication network that can determine whether communications between one base station-UE pair may interfere with another UE that is in the same cell or a different cell. The network identifies interference parameters associated with interference signals that may be received by a UE. The interference signals may be generated by the base station itself, such as communications with other UEs, or by a neighboring base station. The base station transmits the interference parameters to the UE. The UE receives the one or more parameters comprising information about signals expected to cause intra-cell or inter-cell interference. The UE then processes received signals using the one or more parameters to suppress the intra-cell or inter-cell interference.

    Uplink Control Signaling for Joint FDD and TDD Carrier Aggregation

    公开(公告)号:US20180020474A1

    公开(公告)日:2018-01-18

    申请号:US15645262

    申请日:2017-07-10

    Abstract: Embodiments of the invention are directed to a method for operating a mobile device including establishing a connection to a first base station designated as a PCell and establishing a connection to a second base station designated as a SCell. When the mobile device receives PDSCH from a TDD SCell in a subframe n, it transmits a HARQ ACK to an FDD PCell in subframe n+4. When the mobile device receives PDSCH in a downlink subframe from an FDD SCell, it transmits a HARQ ACK corresponding to the PDSCH to a TDD PCell in a selected uplink subframe. The selected uplink subframe may be the first valid uplink subframe following the downlink subframe. For example, where the downlink subframe carrying the PDSCH is subframe n, and the selected uplink subframe is subframe n+k, where k≧4.

    Sounding reference signal processing for LTE

    公开(公告)号:US09628311B2

    公开(公告)日:2017-04-18

    申请号:US14679941

    申请日:2015-04-06

    Abstract: A wireless communication receiver including a serial to parallel converter receiving an radio frequency signal, a fast Fourier transform device connected to said serial to parallel converter converting NFFT corresponding serial signals into a frequency domain; an EZC root sequence unit generating a set of root sequence signals; an element-by-element multiply unit forming a set of products including a product of each of said frequency domain signals from said fast Fourier transform device and a corresponding root sequence signal, an NSRS-length IDFT unit performing a group cyclic-shift de-multiplexing of the products and a discrete Fourier transform unit converting connected cyclic shift de-multiplexing signals back to frequency-domain.

    ENABLING COORDINATED MULTI-POINT RECEPTION
    79.
    发明申请
    ENABLING COORDINATED MULTI-POINT RECEPTION 审中-公开
    启用协调的多点接收

    公开(公告)号:US20150117417A1

    公开(公告)日:2015-04-30

    申请号:US14588235

    申请日:2014-12-31

    CPC classification number: H04B7/024 H04L43/0852 H04W56/0045 H04W56/0065

    Abstract: This invention measures the propagation delay τ1 between the user equipment and a first cooperating unit and the propagation delay τ2 between the user equipment and a second cooperating unit. These propagation delays are used to compute a timing advance amount to the user equipment to enable coordinated multi-point reception. In a first embodiment one cooperating unit receives a function of the propagation delay, computes the timing advance amount and transmits a timing advance command to the user equipment. In a second embodiment a central unit performs these operations.

    Abstract translation: 本发明测量用户设备和第一协作单元之间的传播延迟τ1和用户设备与第二协作单元之间的传播延迟τ2。 这些传播延迟用于计算用户设备的定时提前量,以实现协调的多点接收。 在第一实施例中,一个协作单元接收传播延迟的功能,计算定时提前量并向用户设备发送定时提前命令。 在第二实施例中,中央单元执行这些操作。

    Dynamic Reconfiguration of Uplink Transmission in a TDD Wireless Communication System
    80.
    发明申请
    Dynamic Reconfiguration of Uplink Transmission in a TDD Wireless Communication System 有权
    TDD无线通信系统上行链路传输的动态重配置

    公开(公告)号:US20140334355A1

    公开(公告)日:2014-11-13

    申请号:US14268697

    申请日:2014-05-02

    Abstract: Embodiments of the invention use signaling mechanisms that enable dynamic reconfiguration of the UL/DL resource partitioning by user equipment (UE) in a TDD wireless communication system, such as the 3GPP TDD Long Term Evolution (TD-LTE) system. The dynamic reconfiguration of the UL/DL resource partitioning disclosed herein may also be applied to any other TDD wireless system employing dynamic reconfiguration of the TDD UL/DL configuration.

    Abstract translation: 本发明的实施例使用能够在例如3GPP TDD长期演进(TD-LTE)系统的TDD无线通信系统中由用户设备(UE)进行的UL / DL资源划分的动态重新配置的信令机制。 本文公开的UL / DL资源划分的动态重新配置也可以应用于采用TDD UL / DL配置的动态重新配置的任何其他TDD无线系统。

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