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公开(公告)号：US11445396B2
公开(公告)日：2022-09-13
申请号：US16674858
申请日：2019-11-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Han , Huangping Jin , Ye Wu , Xiaoyan Bi
Abstract: Embodiments of the present invention provide a channel measurement method and an apparatus. The method includes: for a to-be-measured frequency band that includes at least one reporting subband and 0 or more non-reporting subbands, obtaining channel state information of each reporting subband, where the channel state information of each reporting subband is obtained based on channel estimation, and the at least one reporting subband is included in reporting subbands that are contiguous in frequency domain, or the at least one reporting subband is included in reporting subbands that are not contiguous in frequency domain; and sending a measurement report of the to-be-measured frequency band to a transmit end device, where the measurement report includes the channel state information of one or more of the at least one reporting subband.
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公开(公告)号：US11172499B2
公开(公告)日：2021-11-09
申请号：US16579240
申请日：2019-09-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haicun Hang , Ye Wu , Qian Zhang
Abstract: This application discloses an information transmission method, apparatus, and system, and belongs to the field of communications technologies. The method includes: generating, by a base station, amount indication information, where the amount indication information is used to indicate a maximum amount of downlink control information; sending, by the base station, the amount indication information to user equipment; receiving, by the user equipment, the amount indication information; and receiving, by the user equipment, downlink control information based on the amount indication information. In this application, the amount indication information is sent to the user equipment, so that the user equipment receives the downlink control information based on the amount indication information. This can resolve a problem that complexity of blind detection performed by the user equipment is relatively high, thereby reducing the complexity of the blind detection performed by the user equipment.
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公开(公告)号：US11101855B2
公开(公告)日：2021-08-24
申请号：US16664444
申请日：2019-10-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ye Wu , Xiaoyan Bi
IPC: H04B7/04 , H04B7/0456 , H04L5/00
Abstract: This application provides a data sending method, a data receiving method, a network device, and a terminal device, to obtain a diversity gain to a greater extent, improve received signal quality, and improve data transmission reliability. The method includes: performing, by a network device, transmit diversity preprocessing on one modulated symbol stream to obtain at least one transmit diversity spatial stream; performing, by the network device, precoder cycling on the at least one transmit diversity spatial stream to obtain at least one precoded data stream, where each of the at least one transmit diversity spatial stream corresponds to at least two different precoding vectors; and sending, by the network device, the at least one precoded data stream to a first terminal device.
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公开(公告)号：US20210075578A1
公开(公告)日：2021-03-11
申请号：US17099219
申请日：2020-11-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ye Wu , Xiaoyan Bi
Abstract: This application provides a communication method, a terminal device, and a network device, to improve accuracy of CSI measurement. The method includes: receiving, by a terminal device, first indication information from a network device, where the first indication information is used to determine a first transmission scheme assumed for the terminal device to perform interference measurement; and sending, by the terminal device, channel state information (CSI), where the CSI is obtained by performing CSI measurement based on at least the first transmission scheme and a second transmission scheme, and the second transmission scheme is a transmission scheme assumed for the terminal device to perform channel measurement.
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公开(公告)号：US20200260312A1
公开(公告)日：2020-08-13
申请号：US16832290
申请日：2020-03-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ye Wu , Huangping Jin , Xiaoyan Bi , Wei Han
IPC: H04W24/10 , H04W28/06 , H04B7/0417 , H04B7/0452 , H04B7/06
Abstract: Embodiments of the present invention provide a channel measurement method. The method includes: obtaining, for a to-be-measured frequency band including at least one reporting subband and at least one missing subband, channel state information of each reporting subband and channel state information of each missing subband, where the channel state information of each reporting subband is obtained based on channel estimation, and the channel state information of each missing subband is obtained according to a reference rule with reference to channel state information of a reporting subband that is indicated by the reference rule and that is in the at least one reporting subband; and sending a measurement report of the to-be-measured frequency band to a transmit end device, where the measurement report includes the channel state information of each reporting subband in the at least one reporting subband.
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Patent Agency Ranking
公开(公告)号：US10425872B2
公开(公告)日：2019-09-24
申请号：US15484520
申请日：2017-04-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shunqing Zhang , Yan Chen , Ye Wu
Abstract: Embodiments of the present invention apply to the technical field of communications, and disclosed are a network switching method, system, and network side device. In the embodiment of the invention, within coverage of network side devices on one signaling plane, when a current network side device bearing data plane information of a terminal device determines that handover from the current network side device to a target network side device is required, the current network side device performs handover confirmation with the target network side device, so that the target network side device enables a data plane information communication function with the terminal device and completes switching the bearer of the data plane information.
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公开(公告)号：US20190260542A1
公开(公告)日：2019-08-22
申请号：US16401686
申请日：2019-05-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ye Wu , Yong Liu , Xiaoyan Bi
IPC: H04L5/00 , H04W72/04 , H04B7/0456
Abstract: A reference signal transmission method is provided, including: generating, by a network side device, a transmission unit, where the transmission unit includes a user equipment-specific demodulation reference signal UE-specific DM-RS, a time-frequency region for unicast control, and a user-specific data time-frequency region; and sending the transmission unit to user equipment, where the UE-specific DM-RS is reused or shared to demodulate the time-frequency region for unicast control and the user-specific data time-frequency region.
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公开(公告)号：US09894660B2
公开(公告)日：2018-02-13
申请号：US14802455
申请日：2015-07-17
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W72/048 , H04L5/0023 , H04W72/121 , H04W72/1231
Abstract: Provided are a method and apparatus for scheduling user equipments in a communication system. The method comprises: obtaining geographic position information of UEs in connected state, and determining, in each TTI, the UEs which need to feed back the geographic position information, by a serving base station; obtaining, in the (k+1)-th TTI, the channel information of a first part of UEs among the UEs in the connected state, wherein it is determined in the k-th TTI, based on the channel information of a second part of UEs obtained in the k-th TTI and the geographic position information of the second part of UEs, that the channel information of the first part of UEs is to be obtained in the (k+1)-th TTI; and selecting a UE to be scheduled from the first part of UEs based on the channel information of the first part of UEs.
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公开(公告)号：US09661541B2
公开(公告)日：2017-05-23
申请号：US14587134
申请日：2014-12-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shunqing Zhang , Yan Chen , Ye Wu
CPC classification number: H04W36/14 , H04W36/0066 , H04W36/12 , H04W36/38 , H04W72/042 , H04W76/22 , H04W88/16
Abstract: Embodiments of the present invention apply to the technical field of communications, and disclosed are a network switching method, system, and network side device. In the embodiment of the invention, within coverage of network side devices on one signaling plane, when a current network side device bearing data plane information of a terminal device determines that handover from the current network side device to a target network side device is required, the current network side device performs handover confirmation with the target network side device, so that the target network side device enables a data plane information communication function with the terminal device and completes switching the bearer of the data plane information.
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公开(公告)号：US20170141829A1
公开(公告)日：2017-05-18
申请号：US15419595
申请日：2017-01-30
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04B7/0617 , H04B7/04 , H04B7/06 , H04L5/0051 , H04L43/16
Abstract: A data sending method including receiving uplink data or a pilot sent by user equipment by using an uplink subframe, performing beam characteristic design according to at least one of the uplink data or the pilot, generating beam characteristic information, determining a precoding mode according to the beam characteristic information, and performing precoding processing on to-be-sent data according to the determined precoding mode where the precoding mode includes at least one of a space-time based precoding mode or a space-frequency based precoding mode and sending precoded to-be-sent data to the user equipment. The precoding mode can be flexibly selected according to at least one of uplink data or a pilot sent by user equipment.
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