Systems and methods using configurable surfaces for wireless communication

    公开(公告)号:US11570629B2

    公开(公告)日:2023-01-31

    申请号:US16926176

    申请日:2020-07-10

    摘要: Aspects of the present disclosure take advantage of a prism-like effect that occurs in a Reconfigurable Intelligent Surface (RIS), where the RIS reflects incident signals of different frequencies in different directions. for determining characteristics of a channel between a transmitter and a receiver wherein the channel includes the RIS. In particular, this may include estimating an angle of arrival (AoA) to the RIS in uplink transmission or the angle of departure (AoD) from the RIS in downlink transmission. Aspects of the present disclosure also provide solutions to compensate the prism effect for wideband transmission, especially at high frequencies (e.g. mmWave and THz).

    Systems and methods for beamforming using integrated configurable surfaces in antenna

    公开(公告)号:US11431103B2

    公开(公告)日:2022-08-30

    申请号:US16932100

    申请日:2020-07-17

    IPC分类号: H01Q15/14 H01Q21/06 H01Q19/10

    摘要: Aspect of the present disclosure provide a device that includes an array of subarrays (AoSA) comprising a plurality of subarrays, each subarray including a plurality of antenna elements and a reconfigurable intelligent surface (RIS) that includes a plurality of configurable elements. The AoSA and the RIS are spaced apart from one another such that each subarray and a corresponding subset of the plurality of configurable elements are in each other's near field. Some embodiments described in the disclosure allow large spacing between antenna elements of the AoSA, thereby enabling lower complexity in circuit implementation for power amplification and phase shifting that may be associated with each antenna element, especially as high frequencies where spacing between antenna elements decreases and in some embodiments, reduces the number of antennas that are used.

    System and method for MA signature assignment based on UE group separation

    公开(公告)号:US10833822B2

    公开(公告)日:2020-11-10

    申请号:US15495308

    申请日:2017-04-24

    IPC分类号: H04L5/00 H04W72/04

    摘要: In a wireless communication system, user equipments (UEs) may be partitioned into different groups, e.g. based on spatial separation. UEs may use multiple access (MA) signatures that have low or no correlation to each other if the UEs are in the same group. The MA signatures used by one group of UEs may be more correlated with the MA signatures used by another group of UEs. If the UEs are partitioned into the different groups based on spatial separation, then the spatial separation between the different groups may assist in increasing the reliability of detection if two UEs in different groups use correlated MA signatures.

    Robust transceiver design
    96.
    发明授权
    Robust transceiver design 有权
    强大的收发器设计

    公开(公告)号:US09054767B2

    公开(公告)日:2015-06-09

    申请号:US13556973

    申请日:2012-07-24

    IPC分类号: H04B1/38 H04B7/08 H04B7/04

    CPC分类号: H04B7/086 H04B7/0413

    摘要: A system is provided for optimizing throughput in a communication system. During operation, the system receives, at a first antenna, estimated channel state information (CSI) at least one channel between the first antenna and at least one second antenna. The system obtains antenna correlation information associated with the first antenna and the second antenna, respectively. The system further calculates a set of noise terms associated with random noise for the at least one channel, and optimizes a configuration of beamformers for the first antenna and the at least one second antenna that maximizes a throughput of all antennas, in accordance with the estimated CSI, the obtained antenna correlation information, and the noise terms.

    摘要翻译: 提供了一种用于优化通信系统中的吞吐量的系统。 在操作期间,系统在第一天线处接收第一天线和至少一个第二天线之间的至少一个信道的估计信道状态信息(CSI)。 该系统分别获得与第一天线和第二天线相关联的天线相关信息。 该系统进一步计算与至少一个信道的随机噪声相关联的一组噪声项,并根据所估计的最优化针对第一天线和至少一个使所有天线的吞吐量最大化的第二天线的波束形成器的配置。 CSI,所获得的天线相关信息和噪声项。

    SYSTEMS AND METHODS FOR CLUSTERING OPTIMIZATION TO HELP RESOLVE BOUNDARY PROBLEMS IN COMMUNICATION SYSTEMS
    97.
    发明申请
    SYSTEMS AND METHODS FOR CLUSTERING OPTIMIZATION TO HELP RESOLVE BOUNDARY PROBLEMS IN COMMUNICATION SYSTEMS 有权
    用于聚合优化的系统和方法来帮助解决通信系统中的边界问题

    公开(公告)号:US20140019619A1

    公开(公告)日:2014-01-16

    申请号:US13547920

    申请日:2012-07-12

    IPC分类号: G06F15/173

    摘要: Various devices and methods are disclosed to support clustering optimization in a communication system. For example, multiple nodes of the communication system can be segmented into multiple clustering plans. Each clustering plan can include multiple clusters that do not overlap with one another within that clustering plan. At least one of the clusters of one clustering plan can overlap at least one of the clusters of at least one other clustering plan. Each node could be a non-boundary node in at least one cluster of at least one clustering plan. Multiple nodes of the communication system can alternatively be segmented into clusters having expanding and contracting borders.

    摘要翻译: 公开了各种设备和方法以支持通信系统中的聚类优化。 例如,通信系统的多个节点可以被分割成多个聚类计划。 每个群集计划可以包括在该群集计划中彼此不重叠的多个群集。 一个聚类计划的集群中的至少一个可以与至少一个其他聚类计划的集群中的至少一个重叠。 每个节点可以是至少一个群集计划的至少一个群集中的非边界节点。 通信系统的多个节点也可以被分割为具有扩展和收缩边界的簇。

    System and method for transceivers in a wireless network
    98.
    发明授权
    System and method for transceivers in a wireless network 有权
    无线网络中收发器的系统和方法

    公开(公告)号:US08577310B2

    公开(公告)日:2013-11-05

    申请号:US12850319

    申请日:2010-08-04

    IPC分类号: H04B1/04

    CPC分类号: H04B7/0617

    摘要: In accordance with an embodiment, a method of operating a multi-output wireless transmitter includes determining a precoded data stream based on input data, where the determining includes determining a signal to interference plus noise ratio (SINR) of a plurality of receivers, determining a channel gain to each of the plurality of receivers, and maximizing a sum of utility functions, wherein each utility function is proportional to the SINR of each of the plurality of receivers at low SINR values and asymptotically approaches a constant value at high SINR values. The precoded data stream is transmitted on the multi-output wireless transmitter.

    摘要翻译: 根据实施例,一种操作多输出无线发射机的方法包括基于输入数据确定预编码数据流,其中所述确定包括确定多个接收机的信号与干扰加噪声比(SINR),确定一个 并且使效用函数的最大值最大化,其中每个效用函数与低SINR值下的多个接收机中的每一个的SINR成比例,并且在高SINR值处渐近地接近恒定值。 预编码数据流在多输出无线发射机上传输。

    Methods and Apparatus for Inter-cell Interference Coordination Self-Organized Network
    99.
    发明申请
    Methods and Apparatus for Inter-cell Interference Coordination Self-Organized Network 有权
    细胞间干扰协调自组织网络的方法与装置

    公开(公告)号:US20120120893A1

    公开(公告)日:2012-05-17

    申请号:US13298893

    申请日:2011-11-17

    IPC分类号: H04W72/04

    CPC分类号: H04W24/02 H04W16/10 H04W24/08

    摘要: A method of resource allocation for use in a wireless network is disclosed. A network coloring decision to assign a plurality of resource blocks to a plurality of cells within the wireless network is triggered upon occurrence of a network event. A network coloring is performed by assigning each cell of the plurality of cells a resource block from the plurality of resource blocks. An effect of interference among adjacent cells with a same resource block assignment is reduced as measured by a network performance metric related to a number of resource block assignment conflicts over the plurality of cells.

    摘要翻译: 公开了一种在无线网络中使用的资源分配方法。 在发生网络事件时,触发对无线网络内的多个小区分配多个资源块的网络着色决定。 通过从多个资源块分配多个小区的资源块来执行网络着色。 通过与多个小区上的资源块分配冲突的数量有关的网络性能度量来测量相同资源块分配的相邻小区之间的干扰的影响。