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    • 8. 发明申请
    • FREQUENCY FILTERING FOR IMPROVING COMMUNICATION VIA COVERAGE ENHANCING DEVICES
    • WO2022207796A1
    • 2022-10-06
    • PCT/EP2022/058582
    • 2022-03-31
    • SONY GROUP CORPORATIONSONY EUROPE B.V.
    • RUSEK, FredrikZHAO, KunZANDER, OlofBENGTSSON, ErikFLORDELIS, Jose
    • H04B7/06H04B7/0617
    • According to a first aspect, examples provide a method of operating a first communication node (CN), wherein the first CN is configured for controlling a first coverage enhancing device (CED) and a second CED, wherein the first CED and the second CED are reconfigurable to provide multiple spatial filterings, each one of the multiple spatial filterings being associated with a respective input spatial direction from which incident signals on a radio channel are accepted and with a respective output spatial direction into which the incident signals are transmitted by the first CED and the second CED, respectively, wherein the first CED is configured for applying a first frequency filtering to the incident signals; wherein the second CED is configured for applying a second frequency filtering to the incident signals, wherein the first frequency filtering is different from the second frequency filtering, wherein the method comprises receiving, from a second CN on the radio channel, a reference signal via a first propagation path and a second propagation path, wherein receiving the reference signal via the first propagation path comprises receiving, via the first CED, a first frequency filtered component of the reference signal by the first CED, wherein receiving the reference signal via the second propagation path comprises receiving, via the second CED, a second frequency filtered component of the reference signal by the second CED, measuring a reception property of the reference signal, depending on the reception property, providing, to the first CED, a message for configuring the first CED to induce a first phase shift in the first propagation path. Further examples, provide a further method of operating a first CN, methods of operating a second CN, methods of operating a CED as well as respective first CNs, second CNs and CEDs.