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    • 92. 发明公开
    • METHOD AND FULL-DUPLEX COMMUNICATION DEVICE FOR ACQUIRING CHANNEL RESPONSE OF SELF-INTERFERING CHANNEL
    • 方法和全双工通信设备用于检测的自干扰信道的信道响应
    • EP2860925A1
    • 2015-04-15
    • EP13809403.2
    • 2013-01-07
    • Huawei Technologies Co., Ltd.
    • CHENG, HongWANG, RuiDU, Yinggang
    • H04L25/02
    • H04W72/082H04L5/0048H04L5/143H04L25/022H04L25/0232
    • The present invention is applicable in the technical filed of communications. Provided are a method and full-duplex communication device for acquiring a channel response of a self-interfering channel. The method comprises: first, employing multiple reference signals to perform a channel estimation on the self-interfering channel, acquiring a channel response estimated value of the self-interfering channel, where the time intervals between adjacent reference signals are less than a related time of the self-interfering channel, and where the frequency-domain intervals between the adjacent reference signals are less than a related bandwidth of the self-interfering channel, then, determining a stable range of each channel frequency-domain response on the basis of the channel response estimated value, and then randomly selecting a frequency point within the stable range of each channel frequency-domain response or selecting a frequency point of a greater channel response to serve as an emission frequency point of the reference signals, and, when an interrelation of the channel responses on the emission frequency point and on a non-emission frequency point is acquired, acquiring all of the channel responses on time-domain and frequency-domain directions on the basis of a reception signal corresponding to the reference signals on the emission frequency point. The present invention conserves reference signal resources used for estimation of the self-interfering channel.
    • 本发明是适用于技术日提交的通信。 提供了用于获取自干扰信道的信道响应的方法和全双工通信装置。 该方法包括:第一,采用多个参考信号来执行自干扰信道的信道估计,获得信道响应估计值的自干扰信道,其中相邻参考信号之间的时间间隔小于的相关时间的 自干扰的信道,并且其中所述相邻参考信号之间的频域间隔小于所述自干扰的信道,然后,确定的挖掘通道的基础上,每个信道频域响应的稳定范围内的一个相关的带宽 响应估计值,然后随机选择每个信道的频域响应的稳定范围内的频率点或选择更大的信道响应的频率点作为在基准信号的发射频率点,并且,当所述的相互关系 在发射频率点和非发射频率点上的信道响应被获取时,获取所有的第 上对应于所述发射频率点的参考信号的接收信号的基础上,时域和频域方向的s的信道响应。 本发明节省了用于自干扰信道估计的参考信号的资源。
    • 93. 发明公开
    • METHOD AND DEVICE FOR DEMODULATING DATA
    • 用于解调数据的方法和设备
    • EP2840730A1
    • 2015-02-25
    • EP12877011.2
    • 2012-10-19
    • Huawei Technologies Co., Ltd
    • DU, YinggangLIU, ShengWANG, Rui
    • H04L1/00
    • H04L1/0054H04B1/1027H04L25/03216H04L27/2649H04L27/38H04L2025/0342H04L2025/03426
    • Embodiments of the present invention provide a method and device for demodulating data. The method includes: determining the number of reliable bits of each path of data in M paths of data and a modulation manner used to demodulate the reliable bits of each path of data, where M is a positive integer; demodulating the reliable bits of each path of data according to the modulation manner used to demodulate the reliable bits of each path of data; and demodulating residual bits in each path of data except the reliable bits according to a maximal likelihood ML algorithm. In the embodiments of the present invention, the number of the reliable bits of each path of data and the modulation manner used to demodulate the reliable bits of each path of data are determined, and the residual bits in each path of data except the reliable bits are demodulated according to the ML algorithm; therefore, compared with the prior art, it is unnecessary to demodulate all bits of each path of data according to the ML algorithm, thereby lowering the complexity of demodulation by using the ML algorithm.
    • 本发明的实施例提供了用于解调数据的方法和设备。 该方法包括:确定M路数据中每路数据的可靠比特数和用于解调每路数据的可靠比特的调制方式,其中M为正整数; 根据用于解调每路数据的可靠比特的调制方式解调每路数据的可靠比特; 根据最大似然ML算法解调除可靠比特之外的每个数据路径中的剩余比特。 在本发明实施例中,确定每路数据的可靠比特数和用于解调每路数据的可靠比特的调制方式,除可靠比特之外的每路数据中的残差比特 根据ML算法解调; 因此与现有技术相比,不需要根据ML算法对每路数据的全部比特进行解调,从而降低了采用ML算法解调的复杂度。
    • 99. 发明公开
    • SATELLITE COMMUNICATION METHOD AND APPARATUS
    • EP4123921A1
    • 2023-01-25
    • EP21795372.8
    • 2021-04-21
    • Huawei Technologies Co., Ltd.
    • QIAO, YunfeiWANG, YuDU, Yinggang
    • H04B7/185H04B17/309
    • This application provides a satellite communication method and apparatus, to reduce a connection establishment delay. The method includes: A first satellite receives at least one piece of measurement information sent by user equipment UE, where the at least one piece of measurement information is in a one-to-one correspondence with at least one satellite, and each piece of measurement information indicates signal quality of a detection signal sent by a corresponding satellite; the first satellite determines at least one second satellite from the at least one satellite based on the at least one piece of measurement information, where signal quality of a detection signal sent by the second satellite meets a first preset condition; the first satellite sends first information to the UE, where the first information is used for communication between the UE and the second satellite, and the first information includes an identifier of the second satellite; and/or the first satellite sends second information to the second satellite, where the second information is used for communication between the second satellite and the UE, and the second information includes an identifier of the UE.
    • 100. 发明公开
    • COMMUNICATION METHOD AND DEVICE
    • EP4123920A1
    • 2023-01-25
    • EP21785273.0
    • 2021-03-29
    • Huawei Technologies Co., Ltd.
    • LUO, HejiaWANG, XiaoluCHEN, YingZHOU, JianweiDU, Yinggang
    • H04B7/185H04W4/02H04W12/02H04W36/32H04W74/08
    • A communication method and apparatus are provided, and relate to the field of wireless communication technologies, to resolve a problem in a conventional technology that communication quality during communication between a satellite and a communication apparatus cannot be ensured, and to ensure security of high-accuracy location information of the satellite. In the method, the communication apparatus may perform random access to the satellite based on first location information. The communication apparatus may perform uplink communication with the satellite based on obtained second location information. Accuracy of a location obtained based on the second location information is higher than accuracy of a location obtained based on the first location information. Based on this solution, required accuracy of location information of the satellite is different. In different processes of communicating with the satellite, the communication apparatus can obtain the location information and motion information of the satellite with different accuracy, and communicate with the satellite. Communication quality during the uplink communication performed by the communication apparatus with the satellite can be met, and the security of the high-accuracy location information of the satellite can be improved.