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公开(公告)号：US20200162288A1
公开(公告)日：2020-05-21
申请号：US16752276
申请日：2020-01-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiming LI , Jing HAN , Anjian LI , Xizeng DAI , Yue ZHAO , Xingqing CHENG
Abstract: Embodiments of the present invention relate to a channel estimation method, a base station, user equipment UE, and a system. The method includes: setting up, by a base station, a connection to user equipment UE; and sending, to the UE, notification information indicating that the UE is in a radio remote scenario, where the notification information is used to instruct the UE to perform channel estimation by using a channel estimation algorithm applicable to the radio remote scenario, and the channel estimation algorithm is used to perform channel estimation on a signal that is obtained after downlink signals from multiple radio remote units RRUs are superposed. The UE can perform channel estimation by using the appropriate channel estimation algorithm, to effectively improve accuracy of the channel estimation, thereby effectively improving a downlink data throughput of the UE.
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公开(公告)号：US20170374707A1
公开(公告)日：2017-12-28
申请号：US15699108
申请日：2017-09-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xizeng DAI , Qiming LI , Jing HAN , Anjian LI , Fankui LIN
CPC classification number: H04W84/005 , B63B2201/16 , H01Q1/3216 , H04B1/707
Abstract: Embodiments of the present invention relate to the communications field and disclose a data transmission device, method, and system, so as to better improve an average downlink throughput of UE. A specific solution is: A determining unit determines a downlink frequency shift according to a received uplink signal sent by a terminal device, and determines a second transmit frequency according to the downlink frequency shift and a first transmit frequency; and a sending unit sends a downlink signal to the terminal device according to the second transmit frequency determined by the determining unit, so that the terminal device receives the downlink signal according to a receive frequency corresponding to the first transmit frequency, where the downlink signal includes at least one of a DMRS or downlink data. The present invention is applied in a data transmission process.
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公开(公告)号：US20230199667A1
公开(公告)日：2023-06-22
申请号：US18173638
申请日：2023-02-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liangliang ZHANG , Xizeng DAI , Jianghua LIU , Lili ZHANG
IPC: H04W52/14 , H04W72/1268
CPC classification number: H04W52/146 , H04W72/1268
Abstract: A communication method and an apparatus are provided. The method includes: A terminal device receives first information from a network device, where the first information is for indicating an antenna port configuration used by an uplink carrier; and the terminal device determines statuses of L transmitters in the terminal device based on the antenna port configuration, where L is an integer greater than 0.
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公开(公告)号：US20230180191A1
公开(公告)日：2023-06-08
申请号：US18162153
申请日：2023-01-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianghua LIU , Xizeng DAI , Zheng YU
IPC: H04W72/02 , H04W72/0453
CPC classification number: H04W72/02 , H04W72/0453 , H04W84/06
Abstract: A communication method and a communication apparatus are provided. In the communication method provided in embodiments of this application, a first device determines a first link resource, where the first link resource is used for sending information to a first terminal by the first device; and the first device determines a second link resource, where the second link resource is used, by the first device, for receiving information sent by a second terminal, where the first link resource has a same frequency resource as the second link resource.
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公开(公告)号：US20210289410A1
公开(公告)日：2021-09-16
申请号：US17332580
申请日：2021-05-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xizeng DAI , Hong WANG , Jian ZHANG , Xingqing CHENG
Abstract: This application provides a downlink signal receiving method, a terminal, and a source base station. The method includes: A terminal may receive downlink signals from a source base station and a target base station in a handover process. When receiving no downlink signal from the target base station, the terminal receives the downlink signal only from the source base station. In addition, after handover is completed, the terminal receives the downlink signal only from the target base station, so that the terminal can still receive the downlink signal from the source base station in the handover process. Therefore, downlink signal transmission interruption caused by the handover process may be reduced to 0 ms or nearly 0 ms. In other words, zero interruption or nearly zero interruption of data transmission may be implemented.
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Patent Agency Ranking
公开(公告)号：US20240430751A1
公开(公告)日：2024-12-26
申请号：US18830088
申请日：2024-09-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lili ZHANG , Xizeng DAI , Qingquan LUO
IPC: H04W28/20 , H04L5/00 , H04W36/06 , H04W72/0453
Abstract: An example communication method includes determining, by a terminal device, M second switching delays, wherein a jth second switching delay is a delay for switching by the terminal device between a first frequency band group and a second frequency band group, the jth second switching delay is one of the M second switching delays, the first frequency band group and the second frequency band group each comprise at least one frequency band, and M is a positive integer. The terminal device can send third information to a network device, wherein the third information comprises the jth second switching delay.
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公开(公告)号：US20180049237A1
公开(公告)日：2018-02-15
申请号：US15790648
申请日：2017-10-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhiheng GUO , Xizeng DAI , Xingqing CHENG
CPC classification number: H04W74/004 , H04J11/0036 , H04L25/08 , H04L27/2673 , H04W28/18 , H04W52/241 , H04W72/0446 , H04W74/08
Abstract: Embodiments of the present invention provide an uplink random access method and a related device, thereby improving the success rate of uplink random access. The method includes: determining, by UE, K available root sequences for uplink random access according to a preset policy, where a maximum quantity of detection windows of single UE that can be supported by each of the K available root sequences is 2M+1, and maximum detection windows of the single UE that can be supported by each available root sequence do not overlap with each other, where K≧1, M is a detection window parameter, M>1, and both K and M are integers; and performing, by the UE, uplink random access according to the kth available root sequence of the K available root sequences, where 1≦k≦K and k is an integer. The present invention is applicable to the field of wireless communications.
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公开(公告)号：US20240306063A1
公开(公告)日：2024-09-12
申请号：US18665497
申请日：2024-05-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xizeng DAI , Hong WANG , Jian ZHANG , Xingqing CHENG
CPC classification number: H04W36/08 , H04L27/265 , H04W36/0072 , H04W52/52
Abstract: This application provides a downlink signal receiving method, a terminal, and a source base station. The method includes: sending a first capability indication to a source base station, wherein the first capability indication indicates that the terminal has an intra-frequency receiving capability; in response to the first capability indication, receiving a first message from the source base station, wherein the first message comprises a first indication, and the first indication indicates the terminal to receive, during a handover process, a downlink signal from the source base station and a downlink signal from a target base station, wherein the downlink signal from the source base station and the downlink signal from the target base station have a same frequency; and receiving during the handover process, the downlink signal from the source base station and the downlink signal from the target base station based on the first indication.
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公开(公告)号：US20240023031A1
公开(公告)日：2024-01-18
申请号：US18357289
申请日：2023-07-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lili ZHANG , Xizeng DAI , Jianghua LIU , Qian ZHANG
IPC: H04W52/32 , H04W72/044 , H04W52/16
CPC classification number: H04W52/325 , H04W72/044 , H04W52/16
Abstract: This application provides a power control method and an apparatus. The method includes: A terminal device determines a second power from at least one power based on a first power of a first reference signal. There is a correspondence between the at least one power and at least one parameter. The terminal device sends the first reference signal based on the second power. This application provides the power control method and the apparatus. The terminal device sends an uplink reference signal to enable UE to obtain more accurate path loss information. In this way, accuracy of a calculated path loss value is improved, and therefore, power control is better implemented.
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公开(公告)号：US20150229453A1
公开(公告)日：2015-08-13
申请号：US14695698
申请日：2015-04-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xizeng DAI , Xiaoan Fan , Xingqing Cheng , Zuomin Wu , Jianbing Yang
CPC classification number: H04L5/0048 , H04L5/0007 , H04L5/0051 , H04W4/70 , H04W72/0453 , H04W76/27
Abstract: A method and an apparatus for transmitting a reference signal is provided, and flexibly configuration of resource used for bearing the RS may be implemented. The method includes: selecting, by a first point device, a first frequency domain resource used for bearing a first reference signal RS from a first carrier, wherein the first carrier is used for data transmission and/or measurement between the first point device and a user equipment, and a number of a resource unit included in the first frequency domain resource is smaller than a system bandwidth of the first carrier; and transmitting the first RS to the user equipment through the first frequency domain resource.
Abstract translation: 提供了一种用于发送参考信号的方法和装置，并且可以实现用于承载RS的资源的灵活配置。 该方法包括：由第一点设备选择用于承载来自第一载波的第一参考信号RS的第一频域资源，其中第一载波用于第一点设备和第一载波之间的数据传输和/或测量 用户设备和包括在第一频域资源中的资源单元的数量小于第一载波的系统带宽; 以及通过所述第一频域资源将所述第一RS发送到所述用户设备。
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