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公开(公告)号：US20210227472A1
公开(公告)日：2021-07-22
申请号：US17214347
申请日：2021-03-26
发明人： Xianda LIU , Liuliu JI , Kunpeng LIU
摘要： This application provides a data transmission method and apparatus. The method includes: A terminal device determines an actual transmit power for first uplink data based on a determined channel transmit power and a transmission parameter. The actual transmit power is less than or equal to the channel transmit power, and the transmission parameter includes one or more of parameters that can be used to indicate a location of the terminal device. The terminal device sends the first uplink data at the actual transmit power. Therefore, the terminal device may determine the actual transmit power for the uplink data based on the channel transmit power and various transmission parameters that can indicate whether the terminal device is located at a cell edge, so that the actual transmit power for the uplink data can be flexibly adjusted, thereby improving data transmission reliability.
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公开(公告)号：US20200351798A1
公开(公告)日：2020-11-05
申请号：US16765123
申请日：2018-11-19
发明人： Liuliu JI , Yuanjie LI
摘要： This application provides a communication method, a communications apparatus, and a communications system. The method includes: receiving first indication information, where the first indication information indicates at least two first parameters, and the at least two first parameters are used for determining at least one of an uplink data channel power, an uplink control channel power, or an uplink reference signal power during dynamic scheduling; and determining a second parameter obtained when a first time element is not used to transmit at least one of an uplink data channel, an uplink control channel, or an uplink reference signal, where the second parameter is at least one of a nominal power, a path loss adjustment factor, a path loss, or a closed-loop power control adjustment value. The method is applicable to power control and/or power headroom reporting in a multi-beam system.
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公开(公告)号：US20200053660A1
公开(公告)日：2020-02-13
申请号：US16657600
申请日：2019-10-18
摘要： Example uplink reference signal sending methods and apparatus are described. One example method includes sending signaling to a terminal device by an access network device. The terminal device determines a sequence type of an uplink reference signal based on the signaling. The terminal device determines transmit power of the uplink reference signal based on the sequence type of the uplink reference signal, and sends the uplink reference signal by using the transmit power of the uplink reference signal.
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公开(公告)号：US20190229786A1
公开(公告)日：2019-07-25
申请号：US16369043
申请日：2019-03-29
发明人： Yi HUANG , Yuanjie LI , Haibao REN , Liuliu JI
IPC分类号： H04B7/0456
摘要： Embodiments of the present invention provide a method which includes: a terminal device is configured to send precoding matrix indicator information to a radio access network device, wherein the precoding matrix indicator information is used to indicate a precoding matrix in a codebook, and the codebook comprises information about a quantity of corresponding antenna panels and information about a phase difference between different corresponding antenna panels; and the terminal device receives downlink data from the radio access network device.
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