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公开(公告)号：EP3691260A1
公开(公告)日：2020-08-05
申请号：EP18868914.5
申请日：2018-06-30
IPC分类号： H04N13/332 , H04N13/128 , H04N13/122 , G06T19/00 , G06F3/0481 , G06F3/01
摘要： Embodiments of the present invention relate to the field of communications technologies, and disclose a method and an apparatus for displaying with a 3D parallax effect, to generate a relatively good 3D parallax effect. A specific solution is: displaying a graphical user interface, where the graphical user interface includes first content, and the first content includes at least two elements; obtaining a first operation instruction, where the first operation instruction is used for moving, in an area for displaying the first content, at least one first element of the at least two elements; and moving, in response to the first operation instruction, in the area for displaying the first content, each of the at least one first element by a different distance along a direction of a first straight line, so that the first content has a 3D parallax effect, where the direction of the first straight line is a direction having a preset included angle with a plane in which the graphical user interface is located.
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公开(公告)号：EP4145783A1
公开(公告)日：2023-03-08
申请号：EP21807772.5
申请日：2021-05-10
发明人： LUO, Zhe , GAO, Yu , ZHOU, Guohua
IPC分类号： H04L27/26
摘要： Embodiments of this application provide a communication method. The method includes: generating a first reference signal, where the first reference signal is two-dimensional orthogonal to a second reference signal, the second reference signal is a reference signal obtained after delay τ transform and Doppler translation r transform are performed on the first reference signal in a communication process, 0 ≤ τ ≤ τ max , 0 ≤ | ν | ≤ ν max , τ ≠ 0 or ν ≠ 0, τ max is a first threshold, ν max is a second threshold, and | x | represents an absolute value of x; and transmitting the first reference signal. For the first reference signal that meets the foregoing requirement, during channel estimation, a spreading function of a channel may be obtained through a two-dimensional correlation operation. This manner of obtaining the spreading function of the channel is simple, fast, and accurate. Therefore, performance of a communication system is greatly improved.
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公开(公告)号：EP4089967A1
公开(公告)日：2022-11-16
申请号：EP21752938.7
申请日：2021-02-09
发明人： XU, Zijie , GAO, Yu , ZHOU, Guohua , PENG, Jinlin , DOU, Shengyue , LI, Xueru , LIU, Xianda
IPC分类号： H04L27/00
摘要： This application discloses a communication method and apparatus, to improve accuracy of correcting a frequency offset. The method includes the following steps: receiving configuration information from a network device, where the configuration information is for configuring one or more uplink reference signal resources, the one or more uplink reference signal resources include a first time unit and a second time unit, and a first antenna port corresponding to the first time unit is the same as a second antenna port corresponding to the second time unit; and sending an uplink reference signal to the network device based on the configuration information.
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公开(公告)号：EP4099785A1
公开(公告)日：2022-12-07
申请号：EP21753810.7
申请日：2021-02-07
发明人： XU, Zijie , GAO, Yu , ZHOU, Guohua , PENG, Jinlin , DOU, Shengyue , YANG, Yubo
IPC分类号： H04W72/04
摘要： This application provides a signal demodulation method, a signal transmission method, and a related apparatus. The signal demodulation method includes: A terminal device receives a first tracking reference signal from a first transmission reception apparatus of a single frequency network cell; receives a second tracking reference signal from a second transmission reception apparatus of the single frequency network cell, where the first tracking reference signal and the second tracking reference signal occupy different time-frequency resources; receives indication information from the first transmission reception apparatus or the second transmission reception apparatus, where the indication information indicates one or more tracking reference signals for receiving a downlink signal, and the downlink signal includes a demodulation reference signal and downlink data; determines, based on the one or more tracking reference signals for receiving the downlink signal, a first carrier frequency on which the downlink signal is to be received; receives the demodulation reference signal and the downlink data based on the first carrier frequency; and demodulates the downlink data based on the demodulation signal. This can improve data receiving performance. Technical solutions of this application may be applied to a single frequency network scenario, for example, a highspeed railway scenario.
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公开(公告)号：EP4213420A1
公开(公告)日：2023-07-19
申请号：EP20954616.7
申请日：2020-09-25
发明人： LI, Xinxian , PENG, Jinlin , FAN, Li , GAO, Yu , ZHONG, Zhimeng
摘要： This application relates to the field of communication technologies, and discloses a communication method and apparatus. The method includes: A terminal device works on a plurality of downlink carriers, and the plurality of downlink carriers include a first downlink carrier and a second downlink carrier. The terminal device obtains first channel information, where the first channel information includes second channel information, and the first downlink carrier and the second downlink carrier share the second channel information; and sends the first channel information to an access network device. In this manner, the first downlink carrier and the second downlink carrier support sharing of a part or all of channel information. In this way, the terminal device may not need to separately measure channel information of the first downlink carrier and the second downlink carrier. This helps lower a processing burden of channel information measurement. In addition, the terminal device may not need to separately feed back the channel information of the first downlink carrier and the second downlink carrier, so that channel information feedback overheads are reduced.
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公开(公告)号：EP4099742A1
公开(公告)日：2022-12-07
申请号：EP21753390.0
申请日：2021-02-07
发明人： XU, Zijie , GAO, Yu , ZHOU, Guohua , PENG, Jinlin , DOU, Shengyue , YANG, Yubo
IPC分类号： H04W16/10
摘要： This application provides a carrier frequency tracking method, a signal transmission method, and a related apparatus. The carrier frequency tracking method includes: A terminal device receives a first tracking reference signal from a first transmission reception apparatus of a single frequency network cell; the terminal device receives a second tracking reference signal from a second transmission reception apparatus of the single frequency network cell, where the first tracking reference signal and the second tracking reference signal occupy different time-frequency resources; and the terminal device performs carrier frequency tracking based on at least one of the first tracking reference signal and the second tracking reference signal. In this way, the terminal device can obtain, based on a plurality of received TRSs, one appropriate carrier frequency on which the carrier frequency tracking is to be performed, and perform data transmission on the tracked carrier frequency, to improve data transmission performance of the terminal device. Technical solutions of this application may be applied to a single frequency network scenario, for example, a highspeed railway scenario.
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