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    • 3. 发明公开
    • METHOD AND SYSTEM FOR SWITCHED BEAM ANTENNA COMMUNICATIONS
    • VERFAHREN UND系统FÜRANTENNENKOMMUNIKATION MIT UMGESCHALTETEN STRAHLEN
    • EP2232637A1
    • 2010-09-29
    • EP07856863.1
    • 2007-12-19
    • Telecom Italia S.p.A.Pirelli & C. S.p.A.
    • 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 (ri, rj) received from the antenna elements as well as a processing arrangement (8) for combining the received RF signals of the selected subset (ri, rj) into a single RF signal for demodulation. The system includes a RF phasing circuit (18) for producing selective combinations of the received RF signals (ri, rj) by applying relative RF phase shift weights to the RF signals (ri, rj) 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 (ri, rj) to be selected as a function of the one radio performance indicator (RPI) generated for the selective combinations of said received RF signals (ri, rj). 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信号的子集的连接装置,以及用于将接收的RF信号组合的处理装置 选择的子集合成单个RF信号进行解调。 该系统包括RF定相电路,用于通过对组合的RF信号施加相对RF相移权重来产生接收的RF信号的选择性组合; 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。 无线电性能估计器为RF信号的每个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。 决定块识别作为根据所接收的RF信号的选择性组合产生的一个无线电性能指标的函数来选择的接收的RF信号的子集。