专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明公开

EP3855638A1 METHOD FOR FEEDING BACK CHANNEL STATE INFORMATION, USER EQUIPMENT, AND BASE STATION 有权
公开(公告)号：EP3855638A1
公开(公告)日：2021-07-28
申请号：EP20214431.7
申请日：2012-12-27
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： WANG, Jianguo , ZHOU, Yongxing , ZHANG, Leiming
IPC分类号： H04B7/06
摘要： Embodiments of the present invention provide a method for feeding back channel state information, a user equipment, and a base station, to improve feedback precision of channel state information. The method includes: receiving a reference signal sent by a base station; selecting a precoding matrix W from a codebook according to the reference signal, where a column vector of the precoding matrix W may be expressed as α [v e jφ v ] T , v=[1 e jθ ] , where α is a constant, θ and φ are phases, and [ ] T indicates transposing of a matrix or vector; and sending a precoding matrix indicator PMI to the base station, where the PMI is corresponding to the selected precoding matrix W. The present invention may further improve quantization precision and achieve balance between overheads and the quantization precision. The base station performs precoding on a sent signal according to a fed back precoding matrix indicator, which can improve precoding precision, thereby improving a data transmission rate and system throughput.

92. 发明公开

EP3809614A1 SIGNAL SENDING APPARATUS, SIGNAL DETECTION APPARATUS, SIGNAL SENDING AND DETECTION SYSTEM, SIGNAL SENDING METHOD, AND SIGNAL DETECTION METHOD 有权
公开(公告)号：EP3809614A1
公开(公告)日：2021-04-21
申请号：EP20191906.5
申请日：2014-12-31
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Jianqin , LIU, Jianghua , WU, Qiang , ZHOU, Yongxing
IPC分类号： H04J1/00 , H04L5/00
摘要： The present invention provides a signal sending apparatus, a signal detection apparatus, a signal sending and detection system, a signal sending method, and a signal detection method. The apparatus determines a time unit that is in each time window and that is used to transmit a synchronization signal, and transmits the synchronization signal in the determined time unit in each time window. Therefore, a synchronization signal is always located in a time unit that has a fixed location in each time window, so that a device at a receive end needs to perform detection only in a fixed time unit in each time window, thereby reducing complexity of designing and detecting the synchronization signal.

93. 发明公开

EP3742848A1 RANDOM ACCESS RESOURCE CONFIGURATION METHOD AND COMMUNICATION DEVICE 审中-公开
公开(公告)号：EP3742848A1
公开(公告)日：2020-11-25
申请号：EP19754527.0
申请日：2019-02-14
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Jianqin , GAO, Xiang , ZHOU, Yongxing
IPC分类号： H04W72/04 , H04L5/00 , H04W74/08
摘要： This application provides a random access resource configuration method and a communications device. The method includes: receiving, by a terminal device, index indication information, where the index indication information is used to indicate a first configuration index; determining, by the terminal device based on the first configuration index, first configuration information corresponding to the first configuration index, where the first configuration information is used to indicate a time domain resource for a first group of random access preamble occasions ROs or a time domain resource for a second group of ROs; the time domain resource for the first group of ROs and the time domain resource for the second group of ROs are located in a first time unit in a random access configuration period; and the time domain resource for the first group of ROs or the time domain resource for the second group of ROs is determined based on a time domain offset of the control channel resource set and/or an index of the first time unit; and determining, by the terminal device, a time domain resource for one group of ROs, where the time domain resource for the group of ROs is the time domain resource for the first group of ROs or the time domain resource for the second group of ROs. According to embodiments of this application, random access efficiency of the terminal device can be improved.

94. 发明授权

EP3229390B1 DEVICE, SYSTEM, AND METHOD FOR SIGNAL TRANSMISSION AND DETECTION 有权
公开(公告)号：EP3229390B1
公开(公告)日：2020-09-09
申请号：EP14909489.8
申请日：2014-12-31
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Jianqin , LIU, Jianghua , WU, Qiang , ZHOU, Yongxing
IPC分类号： H04J1/00 , H04L5/00

95. 发明公开

EP3694132A1 DATA TRANSMISSION AND FEEDBACK METHOD AND DEVICE 有权
公开(公告)号：EP3694132A1
公开(公告)日：2020-08-12
申请号：EP19205516.8
申请日：2015-01-26
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Qiang , WU, Qiang , QU, Bingyu , ZHOU, Yongxing
IPC分类号： H04L5/00 , H04L5/14 , H04W4/08 , H04W72/04 , H04L27/26 , H04L25/03
摘要： Embodiments of the present invention relate to the field of wireless communications, and provide a data transmission method and device. The method includes: determining a type of a first subframe, where the type of the first subframe is a first-type subframe, a second-type subframe, a third-type subframe, or a fourth-type subframe, where the first-type subframe includes an uplink control channel and a downlink channel, and the uplink control channel is located before the downlink channel; the second-type subframe includes an uplink control channel and a downlink channel, the uplink control channel is located after the downlink channel, and there is a guard period between the uplink control channel and the downlink channel; the third-type subframe includes an uplink channel and a downlink control channel, and the uplink channel is located before the downlink control channel; and the fourth-type subframe includes an uplink channel and a downlink control channel, the uplink channel is located after the downlink control channel, and there is a guard period between the uplink channel and the downlink control channel; and transmitting data in the first subframe according to the type of the first subframe. The present invention improves utilization of wireless resources.

96. 发明公开

EP3661142A1 METHOD AND DEVICE FOR SCRAMBLING SEQUENCE CONFIGURATION, USER EQUIPMENT, AND BASE STATION 有权转让
公开(公告)号：EP3661142A1
公开(公告)日：2020-06-03
申请号：EP19197490.6
申请日：2012-10-31
申请人： Huawei Technologies Co. Ltd.
发明人： LIU, Jianqin , ZHOU, Yongxing , WU, Qiang
IPC分类号： H04L25/03 , H04L5/00 , H04L1/00 , H04J11/00 , H04J13/10
摘要： The present invention provides a method and a device for scrambling sequence configuration, a user equipment, and a base station. The method includes: obtaining a search space and/or a transmission mode corresponding to an enhanced control channel; performing a scrambling initialization operation according to the search space and/or the transmission mode, and determining an initialization value of a scrambling sequence; determining the scrambling sequence according to the initialization value of the scrambling sequence; and scrambling a transmission signal transmitted by the enhanced control channel according to the scrambling sequence and then transmitting, so that a user equipment which receives the transmission signal performs a descrambling operation according to the scrambling sequence in the transmission signal. According to the present invention, the base station or the user equipment determines the initialization value of the scrambling sequence according to the search space or the transmission mode, or the base station or the user equipment determines the initialization value of the scrambling sequence according to both the search space and the transmission mode, thus randomization of interferences between different cells or terminals can be guaranteed as far as possible.

97. 发明公开

EP3641148A1 METHOD FOR DETERMINING PRECODING MATRIX INDICATOR, USER EQUIPMENT, AND BASE STATION 有权
公开(公告)号：EP3641148A1
公开(公告)日：2020-04-22
申请号：EP19186667.2
申请日：2013-05-10
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Jianguo , ZHOU, Yongxing , WU, Yong , XIA, Liang
IPC分类号： H04B7/04
摘要： A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first reference signal set, where the precoding matrix is a function of the user equipment-specific matrix or matrix set; and sending a precoding matrix indicator to the base station, where the precoding matrix indicator corresponds to the selected precoding matrix. In the embodiments of the present invention, CSI feedback precision can be improved without excessively increasing feedback overhead, thereby improving system performance.

98. 发明授权

EP3334058B1 METHOD AND DEVICE FOR TRANSMITTING OR RECEIVING A SIGNAL 有权
公开(公告)号：EP3334058B1
公开(公告)日：2020-02-05
申请号：EP15902615.2
申请日：2015-09-02
申请人： Huawei Technologies Co., Ltd.
发明人： QU, Bingyu , LIU, Jianqin , LIU, Kunpeng , ZHOU, Yongxing
IPC分类号： H04B7/12 , H04L27/26 , H04L27/34 , H04B7/06 , H04B7/26

99. 发明公开

EP3588794A1 METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION, TERMINAL DEVICE AND NETWORK DEVICE 有权
公开(公告)号：EP3588794A1
公开(公告)日：2020-01-01
申请号：EP18771535.4
申请日：2018-03-23
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Xueru , LIU, Jianqin , LIU, Kunpeng , QU, Bingyu , ZHOU, Yongxing
IPC分类号： H04B7/04 , H04B7/06
摘要： Embodiments of this application provide a channel state information transmission method, a terminal device, and a network device. The method includes: sending, by a terminal device, a first reference signal through a first antenna port set, where the first antenna port set includes n antenna ports; receiving, by the terminal device, a second reference signal through a second antenna port set, where the second antenna port set includes N antenna ports, and the first antenna port set is a proper subset of the second antenna port set; and sending, by the terminal device, channel state information, where content of the channel state information is associated with a rank indicator RI, and the channel state information and the RI are determined based on the second reference signal. In the embodiments of this application, the terminal device determines the CSI content based on a value of the RI, so that feedback overheads for the channel state information can compromise with feedback precision of the channel state information, and this is more flexible. Therefore, the method improves accuracy of the channel state information , reduces the feedback overheads for the channel state information, and improves system performance.

100. 发明授权

EP2445288B1 METHOD AND APPARATUS FOR OBTAINING CHANNEL STATE INFORMATION 有权
公开(公告)号：EP2445288B1
公开(公告)日：2020-01-01
申请号：EP10788689.7
申请日：2010-04-19
申请人： Huawei Technologies Co., Ltd.
发明人： XIA, Liang , ZHOU, Yongxing , ZHAO, Yajun , CHENG, Xingqing , REN, Xiaotao , WANG, Yan
IPC分类号： H04W72/04 , H04B7/04 , H04L25/02 , H04L5/00 , H04B7/06

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式