Beam acquisition methods and communication devices

    公开(公告)号:US10998945B1

    公开(公告)日:2021-05-04

    申请号:US16739760

    申请日:2020-01-10

    摘要: At a first communication device in a wireless communication network, reference signaling is received from a second communication device in two or more beams with a same direction, and one or more values associated with a direction at which the first communication device received the reference signaling from the second communication device are determined. The one or more values are determined based on the received reference signaling. The direction has a higher accuracy than a beam width associated with the received reference signaling. The direction may be or include an angle of arrival or an angle of departure, for example, and in the case of an angle of departure signaling indicative of the one or more values is transmitted by the first communication device, to the second communication device or another component such as network equipment.

    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.

    Systems and methods for sensing in half duplex networks

    公开(公告)号:US11178691B2

    公开(公告)日:2021-11-16

    申请号:US16564671

    申请日:2019-09-09

    摘要: Aspects of the present disclosure relate to integration of sensing and wireless communications. Wireless communication networks can configure and implement both sensing signals and communication signals. Sensing signals, or sensing reference signals, can be used to determine properties of the environment, and do not carry any information or data for the purpose of communications. Communication signals, on the other hand, are signals that carry information or data between network entities. Sensing agents can be used for both passive and active sensing. Sensing agents may be dedicated devices capable of performing passive sensing, active sensing, or both. Sensing agents can also be existing networks device such as user equipment or transmit receive points. Methodologies described here may be particularly beneficial for half-duplex systems, but could also be implemented in full duplex systems.