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    • 2. 发明公开
    • RELAY, RELAY SYSTEM, AND MEDIUM
    • EP4007184A1
    • 2022-06-01
    • EP21210908.6
    • 2015-08-25
    • Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    • BREILING, MarcoBURKHARDT, FrankROHDE, ChristianNG, Wing KwanSCHOBER, Robert
    • H04B7/155
    • A SUDAC comprises a first wireless communication interface, a second wireless communication interface and a processor. The first wireless communication interface is configured for using ultra-high frequency in order to establish at least one backend communication link with a base station. The second wireless communication interface is configured for using extremely-high frequency in order to establish at least one frontend communication link with a user equipment. The processor is configured for at least partially forwarding a user information signal received via the frontend communication link as a communication signal to be transmitted via the backend communication link while frequency converting the extremely-high frequency to the ultra-high frequency or for forwarding at least partially the communication signal received via the backend communication link as the user information signal to be transmitted via the frontend communication link while frequency converting the ultra-high frequency to the extremely-high frequency. The processor is further configured for extracting control information from the user information signal and for controlling forward parameters of the first or the second wireless communication interface based on the control information. The forward parameters relate to at least one of a time, a frequency, a space or a code resource of the backend communication link or the frontend communication link. The processor is configured for frequency converting the user information signal received at extremely-high frequency to the communication signal at the ultra-high frequency and for frequency converting the communication signal at the extremely-high frequency to the communication signal at the ultra-high frequency or the SUDAC comprises an analog-to-digital converter configured for digitizing the user information signal received at extremely-high frequency and a digital-to-analog converter configured for analogizing a digitalized communication signal to obtain the communication signal at the ultra-high frequency, wherein the processor is configured for generating the digitalized communication signal based on the digitalized user information signal.
    • 4. 发明公开
    • A TRANSCEIVER, A SUDAC, A METHOD FOR SIGNAL PROCESSING IN A TRANSCEIVER, AND METHODS FOR SIGNAL PROCESSING IN A SUDAC
    • 收发器,SUDAC,收发器中的信号处理方法以及SUDAC中的信号处理方法
    • EP3187022A2
    • 2017-07-05
    • EP15753946.1
    • 2015-08-21
    • Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    • BREILING, MarcoBURKHARDT, FrankROHDE, ChristianNG, Wing KwanSCHOBER, Robert
    • H04W88/04H04L25/03
    • H04L25/03159H04L25/0204H04L25/0224H04L25/03343H04L25/03891H04L2025/03426H04W88/04
    • A transceiver of a user equipment comprises a receiving stage, a frontend channel estimator, a frontend channel equalizer, a backend channel estimator, and a backend channel equalizer. The receiving stage is configured to receive an inbound signal from a SUDAC, which enables a relay communication comprising a frontend communication using extremely-high frequencies and a backend communication using ultra-high frequencies. The inbound signal comprises a data portion, a backend control portion and a frontend control portion, the frontend control portion comprising a frontend evaluation signal and a configuration signal. The frontend channel estimator is configured to perform a channel estimation based on the frontend evaluation signal wherein the frontend channel equalizer is configured to equalize distortions, caused by using the extremely-high frequencies, based on the channel estimation of the frontend channel estimator. The backend channel estimator is configured to perform a channel estimation based on the backend control portion wherein the backend channel equalizer is configured to equalize distortions, caused by using the ultra-high frequencies, based on the channel estimation of the backend channel estimator.
    • 用户设备的收发器包括接收级,前端信道估计器,前端信道均衡器,后端信道估计器和后端信道均衡器。 接收级被配置为从SUDAC接收入站信号,其使得能够进行包括使用极高频率的前端通信和使用超高频率的后端通信的中继通信。 入站信号包括数据部分,后端控制部分和前端控制部分,前端控制部分包括前端评估信号和配置信号。 前端信道估计器被配置为基于前端评估信号来执行信道估计,其中前端信道均衡器被配置为基于前端信道估计器的信道估计来均衡由于使用极高频率而引起的失真。 后端信道估计器被配置为基于后端控制部分来执行信道估计,其中后端信道均衡器被配置为基于后端信道估计器的信道估计来均衡由于使用超高频而引起的失真。