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    • 1. 发明申请
    • METHOD AND SYSTEM FOR SWITCHED BEAM ANTENNA COMMUNICATIONS
    • 用于开关光束天线通信的方法和系统
    • WO2009080057A1
    • 2009-07-02
    • PCT/EP2007/011140
    • 2007-12-19
    • TELECOM ITALIA S.P.A.PIRELLI & C. S.P.A.BOLLEA, LorisD'AMICO, ValeriaFODRINI, MaurizioGALLO, PaoloMELIS, BrunoRUSCITTO, Alfredo
    • BOLLEA, LorisD'AMICO, ValeriaFODRINI, MaurizioGALLO, PaoloMELIS, BrunoRUSCITTO, Alfredo
    • H01Q3/36H01Q21/20
    • H01Q3/2605H01Q1/2258
    • A system for processing an RF signal received via a plurality of antenna elements includes a connection arrangement (6) for selecting a sub-set of a given number of RF signals ( r i , r j ) received from the antenna elements as well as a processing arrangement (8) for combining the received RF signals of the selected subset ( r i , r j ) into a single RF signal for demodulation. The system includes a RF phasing circuit (18) for producing selective combinations of the received RF signals ( r i , r j ) by applying relative RF phase shift weights to the RF signals ( r i , r j ) that are combined; each combination includes RF signals received from a number of adjacent antenna elements equal to the number of the RF signals in the sub-set to be selected. A radio performance estimator (14) generates for each said selective combination of RF signals at least one non-RF radio performance indicator (RPI) representative of the quality of the RF signals in the combination. A decision block (16) identifies the sub-set of received RF signals ( r i , r j ) to be selected as a function of the one radio performance indicator (RPI) generated for the selective combinations of said received RF signals ( r i , r j ). This arrangement facilitates the selection of the signals/antennas to be used for reception e.g. in a WLAN device by avoiding that the selection process may involve all the possible combinations.
    • 用于处理经由多个天线元件接收的RF信号的系统包括用于选择从天线元件接收的给定数量的RF信号(ri,rj)的子集的连接装置(6)以及处理装置 (8),用于将所选择的子集(ri,rj)的接收的RF信号组合成单个RF信号以进行解调。 该系统包括RF相位电路(18),用于通过对组合的RF信号(r i,r j)施加相对RF相移权重来产生所接收的RF信号(r i,r j)的选择性组合; 每个组合包括从等于要选择的子集中的RF信号的数量的多个相邻天线元件接收的RF信号。 无线电性能估计器(14)针对RF信号的每个所述选择性组合生成表示组合中的RF信号的质量的至少一个非RF无线电性能指示符(RPI)。 决定块(16)识别作为根据所接收的RF信号(ri,rj)的选择性组合产生的一个无线电性能指示符(RPI)的函数来选择的接收RF信号(ri,rj)的子集, 。 这种布置有助于选择要用于接收的信号/天线,例如。 在WLAN设备中通过避免选择过程可能涉及所有可能的组合。