DISTRIBUTED SCHEDULING METHOD FOR FRONTHAUL-BASED C-RAN WIRELESS NETWORK ARCHITECTURE

    公开(公告)号:US20180359770A1

    公开(公告)日:2018-12-13

    申请号:US15777430

    申请日:2015-12-23

    Abstract: An apparatus for use in a radio aggregation unit (RAU) of a cloud radio access network (Cloud-RAN or C-RAN), the cloud-RAN including a radio cloud center (RCC) and a plurality of radio remote systems (RRS) coupled to the RCC, wherein each RRS comprises an RAU coupled to a plurality of Remote Radio Units (RRUs) is disclosed. The apparatus comprises an input circuit configured to receive a first scheduling result from the RCC and a scheduling circuit configured to generate a second scheduling result for scheduling the one or more UEs in the coverage area of the RAU. Further, the apparatus comprises a processing circuit configured to selectively schedule a select UE from one or more UEs in the coverage area of the RAU, based on the first scheduling result from the RCC or the second scheduling result or an integration of the first scheduling result and the second scheduling result, based on a predetermined threshold associated with a receipt time of the first scheduling result from the RCC at the RAU.

    MIMO BEAMFORMING METHOD AND METHOD OF CONSTRUCTING A DIFFERENTIAL CODEBOOK FOR A WIRELESS NETWORK
    3.
    发明申请
    MIMO BEAMFORMING METHOD AND METHOD OF CONSTRUCTING A DIFFERENTIAL CODEBOOK FOR A WIRELESS NETWORK 审中-公开
    用于无线网络的MIMO波束形成方法和构造差分代码的方法

    公开(公告)号:US20160365910A1

    公开(公告)日:2016-12-15

    申请号:US15018722

    申请日:2016-02-08

    Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

    Abstract translation: MIMO波束成形方法包括在基站处接收关于理想波束成形矩阵和平均波束成形方向之间的差异的信息,使用该信息在基站处构造波束成形矩阵,以及使用重构波束形成矩阵执行波束成形操作。 或者,该方法包括在用户台处计算平均波束成形方向,在用户台处计算与差分码本中的差分矩阵相对应的量化索引,以及在无线网络的无线信道上发送量化索引。 可以通过识别码本中心和变换存储在无线网络的组件的存储器中的预定码本来构建差分码本。

    Method and apparatus using a base codebook structure for beamforming
    5.
    发明授权
    Method and apparatus using a base codebook structure for beamforming 有权
    使用用于波束成形的基础码本结构的方法和装置

    公开(公告)号:US09225405B2

    公开(公告)日:2015-12-29

    申请号:US14293958

    申请日:2014-06-02

    Abstract: Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed.

    Abstract translation: 描述了用于无线通信的预编码方案的技术。 方法和装置可以包括用于通信系统的第一装置,用于使用信道信息,一个或多个缩放因子和一个或多个整数来表示复矢量来确定用于闭环发射波束成形方案的波束形成结构。 波束形成结构可以包括码字,码本和码字索引。 描述和要求保护其他实施例。

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