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公开(公告)号：US20230217474A1
公开(公告)日：2023-07-06
申请号：US18182503
申请日：2023-03-13
发明人： Zhou Xu , Liwen Zhang , Xu Wang
CPC分类号： H04W72/52 , H04W48/10 , H04W28/0231 , H04W72/54 , H04W72/04
摘要： In an embodiment a supplementary uplink (SUL) configuration method includes determining, by an access network device, a plurality of synchronization signal blocks (SSBs), wherein each of the plurality of SSBs comprises configuration information of one SUL and broadcasting, by the access network device, the plurality of SSBs on a downlink.
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2.发明申请公开(公告)号：US20230137479A1
公开(公告)日：2023-05-04
申请号：US18146688
申请日：2022-12-27
发明人： Liwen Zhang , Liangliang Li , Xu Wang , Zhou Xu
IPC分类号： H04W72/541 , H04W72/0453 , G01S7/02
摘要： This application provides a method for reducing interference between a radar and an uplink frequency band. A first network device obtains a characteristic of a radar signal on the uplink frequency band, and determines a corresponding protection measure based on the characteristic of the radar signal, to reduce interference between the radar signal and the uplink frequency band. In this way, when 5G communication collides with the radar in time domain and frequency domain of the uplink frequency band, the 5G communication and the radar can still coexist. This improves utilization of a wireless spectrum.
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公开(公告)号：US11284425B2
公开(公告)日：2022-03-22
申请号：US16881495
申请日：2020-05-22
发明人： Quanzhong Gao , Yong Wang , Heng Xu , Liwen Zhang , Guochen Liu
摘要： An uplink signal transmission method includes receiving, by an active antenna unit of a base station, a first uplink signal sent by a terminal in a first band. The method also includes sending, by the base station, the first uplink signal to a first baseband processing unit of the base station corresponding to a second band for demodulation. The active antenna unit of the base station includes a first array antenna corresponding to the first band and a second array antenna corresponding to the second band. The first band is lower than the second band.
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公开(公告)号：US20200022179A1
公开(公告)日：2020-01-16
申请号：US16580144
申请日：2019-09-24
发明人： Zhe Liu , Chaobin Yang , Yong Wang , Quanzhong Gao , David Jean-Marie Mazzarese , Guohua Zhou , Hao Tang , Wei Chen , Liwen Zhang
摘要： A wireless communication system and method, the method being performed by a base station, and including receiving a system message on a downlink carrier, where the system message includes uplink carrier configuration information and preamble transmission configuration information, the uplink carrier configuration information indicates a plurality of uplink carriers, and the preamble transmission configuration information indicates a transmission configuration of a radio access preamble, sending, based on the transmission configuration of the radio access preamble, the radio access preamble on an uplink carrier of the plurality of the uplink carriers, and detecting, based on identification information of the uplink carrier, control information of a radio access response message on the downlink carrier.
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公开(公告)号：US11463184B2
公开(公告)日：2022-10-04
申请号：US16869189
申请日：2020-05-07
发明人： Quanzhong Gao , Wei Chen , Kai Xu , Liwen Zhang , Shuqin Xiao
IPC分类号： H04B17/345 , H04W72/04 , H04W72/08
摘要： An interference determining method, includes: obtaining first frequency information of a first resource; obtaining second frequency information of a second resource, where a frequency indicated by the first frequency information is lower than a frequency indicated by the second frequency information; determining, based on the first frequency information, harmonic frequency information corresponding to the first resource; and determining, based on the harmonic frequency information and the second frequency information, harmonic interference information between the first resource and the second resource.
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公开(公告)号：US11063806B2
公开(公告)日：2021-07-13
申请号：US16577379
申请日：2019-09-20
发明人： Zhe Liu , Hao Tang , Wei Chen , Liwen Zhang
摘要： A synchronization method including: receiving, by a terminal, a system message on a first downlink carrier, where the system message includes first indication information and second indication information, the first indication information indicates a frequency domain range of a first uplink carrier, the second indication information indicates a frequency domain range of a second downlink carrier, and a frequency of the first uplink carrier is presynchronized with a frequency of the second downlink carrier; and receiving, by the terminal, a synchronization signal on the second downlink carrier, to implement frequency synchronization with the first uplink carrier. According to the synchronization method in NR-LTE co-existence, a terminal can implement frequency synchronization with an LTE uplink carrier, so that the terminal can perform uplink transmission by using a frequency domain resource in the LTE uplink carrier.
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公开(公告)号：US20240259882A1
公开(公告)日：2024-08-01
申请号：US18632216
申请日：2024-04-10
发明人： Liwen Zhang , Zhou Xu , Shuangshuang Ju
CPC分类号： H04W28/20 , H04W28/0236 , H04L5/0092
摘要： This application discloses a method including: A network device receives first channel quality information corresponding to a first bandwidth and second channel quality information corresponding to an aggregated bandwidth from a terminal device; determines interference experienced by the terminal device when the terminal device accesses the aggregated bandwidth based on the first channel quality information and the second channel quality information; and sends bandwidth configuration information to the terminal device based on the interference. The first channel quality information is sent by the terminal device when the terminal device accesses the first bandwidth, and the second channel quality information is sent by the terminal device when the terminal device accesses the aggregated bandwidth. The aggregated bandwidth is obtained by aggregating at least the first bandwidth and a second bandwidth. A spectrum of a third bandwidth is spaced between a spectrum of the first bandwidth and the second bandwidth.
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公开(公告)号：US11277785B2
公开(公告)日：2022-03-15
申请号：US16715734
申请日：2019-12-16
发明人： Chaobin Yang , Yong Wang , Quanzhong Gao , Wei Chen , Liwen Zhang , Xiaojun Zheng , Bin Xiong , Shuai Chen
摘要： Embodiments of this application relate to the field of wireless communications technologies, and provide an access method, a switch method, and an apparatus. The access method includes: receiving, by a terminal, a system message via a downlink carrier, where the system message includes information used to indicate a frequency channel number of a second uplink carrier; and initiating, by the terminal, random access via the second uplink carrier, where a frequency channel number of the downlink carrier belongs to a first frequency band, and a frequency channel number of the second uplink carrier belongs to a second frequency band.
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公开(公告)号：US11102727B2
公开(公告)日：2021-08-24
申请号：US16881867
申请日：2020-05-22
发明人： Kai Xu , Liwen Zhang , Lin Zhou , Bo Cheng
摘要： An uplink control method, includes: determining a downlink path loss based on a first reference signal receive power that is of a serving cell in which the terminal device is located and that is obtained through measurement; receiving a first transmit power and a second transmit power that are sent by the base station; and if the first reference signal receive power is greater than or equal to a preset threshold, obtaining, by the terminal, an uplink transmit power of the terminal in a first network; or if the first reference signal receive power is less than a preset threshold, obtaining, by the terminal, an uplink transmit power of the terminal in the first network.
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公开(公告)号：US09961604B2
公开(公告)日：2018-05-01
申请号：US14935093
申请日：2015-11-06
发明人： Liwen Zhang , Kai Xu , Yuhong Dai , Liang Xu , Lin Zhou , Xiaoyi Cui
CPC分类号： H04W36/22 , G01S5/0252 , G01S5/14 , H04W28/08 , H04W36/0061 , H04W36/14 , H04W64/00
摘要： Embodiments disclose a radio network information management method and a network device. A radio network information management method is disclosed, where the method includes determining that a user equipment UE exists in a first mobility management unit, and determining radio network information of the first mobility management unit according to measurement statistic information of the UE in the first mobility management unit. It is therefore implemented that a granularity of acquiring and managing radio network information in a cell is per mobility management unit, and for a complex cell coverage environment, difference a neighboring cells between different areas of the cell and difference about interference between different areas of the cell are specified. The embodiments further disclose a network device.
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