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公开(公告)号：US20230328662A1
公开(公告)日：2023-10-12
申请号：US18333480
申请日：2023-06-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xun Li , Xiaolong Zhu , Jiachong Zhou , Yan Zhou
CPC classification number: H04W52/34 , H04W52/367 , H04W52/325
Abstract: The disclosure provides a power adjustment method and apparatus for adjusting power of a serving cell. The serving cell sends a first message to a first terminal to indicates to configure a first measurement bandwidth as a center bandwidth, where a frequency range of the center bandwidth is less than a frequency range of a full bandwidth, the full bandwidth represents a maximum bandwidth allocated to the serving cell, and the first measurement bandwidth is used by the first terminal to measure channel quality; the serving cell reduces power in a second bandwidth, where a frequency range of the second bandwidth is a frequency range obtained by subtracting the frequency range of the center bandwidth from the frequency range of the full bandwidth; and the serving cell increases power in the center bandwidth. The increase of the power in the center bandwidth can increase a coverage of the serving cell.
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公开(公告)号：US11122569B2
公开(公告)日：2021-09-14
申请号：US16720549
申请日：2019-12-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Libiao Wang , Fan Jin , Wei Chen , Xiaolong Zhu
Abstract: This application provides an example method for transmitting base station data. The method includes receiving a precoding matrix indication (PMI) value and reference signal received power (RSRP) that are sent by user equipment. The method also includes determining, based on the PMI value, a network area group corresponding to the user equipment. The method further includes determining, based on the RSRP, a network area in which the user equipment is located.
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公开(公告)号：US10897289B2
公开(公告)日：2021-01-19
申请号：US16358301
申请日：2019-03-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shuai Chen , Wei Chen , Xiaolong Zhu , Yu Wu
IPC: H04B7/0456 , H04B7/06 , H04L5/00
Abstract: A signal transmission method includes: processing, by a base station, a first baseband signal, a second baseband signal, a third baseband signal, and a fourth baseband signal by using a VAM matrix, to obtain four processed signals; performing precoding processing on the four processed signals to obtain four coded signals; and sending the four coded signals to a mobile terminal by using four radio frequency ports. The four radio frequency ports are in a one-to-one correspondence with the four coded signals. A first processed signal is the same as a third processed signal, a second processed signal is the same as a fourth processed signal. The first processed signal is obtained by performing superposition on the first baseband signal and the third baseband signal, and the second processed signal is obtained by performing superposition on the second baseband signal and the fourth baseband signal.
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公开(公告)号：US10944507B2
公开(公告)日：2021-03-09
申请号：US16448716
申请日：2019-06-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yu Wu , Xiaolong Zhu , Wei Chen , Rong Wan , Shuai Chen
Abstract: A signal transmission method is performed by a base station. The method includes: determining, a first carrier signal that is to be sent in a first cell on a first carrier and a second carrier signal that is to be sent in a second cell on a second carrier; mapping, the first carrier signal and the second carrier signal to N physical ports of an RRU, so that within a same OFDM symbol, a type B symbol used to transmit a pilot in the first carrier signal and a type B symbol used to transmit a pilot in the second carrier signal are mapped to different physical ports, and a total power of signals sent on each of N physical channels is not greater than a rated power of the RRU; and sending, the first carrier signal and the second carrier signal through the N physical ports.
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公开(公告)号：US20190312673A1
公开(公告)日：2019-10-10
申请号：US16448716
申请日：2019-06-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yu Wu , Xiaolong Zhu , Wei Chen , Rong Wan , Shuai Chen
Abstract: A signal transmission method is performed by a base station. The method includes: determining, a first carrier signal that is to be sent in a first cell on a first carrier and a second carrier signal that is to be sent in a second cell on a second carrier; mapping, the first carrier signal and the second carrier signal to N physical ports of an RRU, so that within a same OFDM symbol, a type B symbol used to transmit a pilot in the first carrier signal and a type B symbol used to transmit a pilot in the second carrier signal are mapped to different physical ports, and a total power of signals sent on each of N physical channels is not greater than a rated power of the RRU; and sending, the first carrier signal and the second carrier signal through the N physical ports.
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Patent Agency Ranking
公开(公告)号：US09991991B2
公开(公告)日：2018-06-05
申请号：US15582188
申请日：2017-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaolong Zhu
CPC classification number: H04L1/0625 , H04B7/024 , H04L1/0668 , H04W52/42 , H04W88/08
Abstract: Embodiments of the present invention disclose a signal processing method and a base station. The method may include: performing, by a base station, packet assembly, code modulation, and multi-antenna processing on downlink channel data, so as to form antenna port signals. The method may also include performing, by the base station, orthogonal transform on the antenna port signals according to a preset matrix used for orthogonal transform, and simultaneously sending, by the base station, orthogonally transformed antenna port signals to user equipment by using different antennas, where cells covered by the different antennas have a same cell identity.
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公开(公告)号：US11109261B2
公开(公告)日：2021-08-31
申请号：US16698690
申请日：2019-11-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolong Zhu , Jia Lv , Dongdong Ruan , Shuo Jin , Gang Cao
IPC: H04W28/02 , H04B17/327 , H04B17/336 , H04B7/0404 , H04L1/06 , H04L5/00
Abstract: An antenna port mapping method and a network device are disclosed. The method includes: determining, by a network device, a polarization direction of each of P physical antennas of the network device and an antenna array to which each of the P physical antennas belongs, where P is a multiple of 4; and respectively mapping, by the network device, a first antenna port and a second antenna port to a first group of physical antennas and a second group of physical antennas in the P physical antennas, and respectively mapping a third antenna port and a fourth antenna port to a third group of physical antennas and a fourth group of physical antennas in the P physical antennas.
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公开(公告)号：US20170237526A1
公开(公告)日：2017-08-17
申请号：US15582188
申请日：2017-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaolong Zhu
CPC classification number: H04L1/0625 , H04B7/024 , H04L1/0668 , H04W52/42 , H04W88/08
Abstract: Embodiments of the present invention disclose a signal processing method and a base station. The method may include: performing, by a base station, packet assembly, code modulation, and multi-antenna processing on downlink channel data, so as to form antenna port signals. The method may also include performing, by the base station, orthogonal transform on the antenna port signals according to a preset matrix used for orthogonal transform, and simultaneously sending, by the base station, orthogonally transformed antenna port signals to user equipment by using different antennas, where cells covered by the different antennas have a same cell identity.
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公开(公告)号：US11012107B2
公开(公告)日：2021-05-18
申请号：US16455741
申请日：2019-06-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Chen , Xiaolong Zhu , Xiaojun Zheng , Tao Jin
Abstract: An antenna system, including a receiver set, a transmitter set, and an antenna array, where the receiver set includes a plurality of receivers, and the transmitter set includes a plurality of transmitters; the antenna array includes a first antenna unit set and a second antenna unit set; the first antenna unit set includes at least one first target antenna unit, and the second antenna unit set includes at least one second target antenna unit; and any one of the at least one first target antenna unit is connected to any receiver in the receiver set, and any one of the at least one second target antenna unit is connected to any transmitter in the transmitter set.
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公开(公告)号：US09197301B2
公开(公告)日：2015-11-24
申请号：US14306921
申请日：2014-06-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaolong Zhu , Chao Zhang
IPC: H04B7/02 , H04B7/04 , H04B7/06 , H04B17/26 , H04B17/391
CPC classification number: H04B7/0456 , H04B7/0617 , H04B7/0639 , H04B7/0689 , H04B17/26 , H04B17/391
Abstract: Embodiments of the present invention provide a method and an apparatus for configuring a transmission mode, where the method includes: obtaining channel matrix information, where the channel matrix information is any one of the following: a precoding matrix indicator which most matches a current uplink channel matrix of a terminal, a current downlink precoding matrix indicator of the terminal, an uplink channel matrix of the terminal and the precoding matrix indicator which most matches the current uplink channel matrix of the terminal, and the uplink channel matrix of the terminal and the current downlink precoding matrix indicator of the terminal; determining performance of data transmission performed by adopting a closed-loop mode and an open-loop mode according to the channel matrix information, and selecting the data transmission mode according to the determined performance of data transmission, where the data transmission mode includes the open-loop mode, the closed-loop mode.
Abstract translation: 本发明的实施例提供一种用于配置传输模式的方法和装置，其中该方法包括：获取信道矩阵信息，其中信道矩阵信息是以下任何一个：预编码矩阵指示符，其最匹配当前上行链路信道 终端的当前下行链路预编码矩阵指示符，终端的上行链路信道矩阵和与终端的当前上行链路信道矩阵最匹配的预编码矩阵指示符，以及终端的上行链路信道矩阵和当前的 终端的下行预编码矩阵指示符; 根据信道矩阵信息确定采用闭环模式和开环模式执行的数据传输的性能，以及根据所确定的数据传输性能选择数据传输模式，其中数据传输模式包括： 循环模式，闭环模式。
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