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公开(公告)号：US20220200668A1
公开(公告)日：2022-06-23
申请号：US17692736
申请日：2022-03-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ting WANG , Jinyao LIANG , Shengyue DOU , Yuanjie LI , Yan CHENG
IPC: H04B7/0417 , H04B7/0456 , H04B7/06 , H04L5/00 , H04W80/08
Abstract: Disclosed are a communications method and device. The method includes: sending, by a network device, configuration information to a terminal device; determining, by the terminal device, channel state information CSI measurement behavior and/or CSI feedback related information, where the channel state information CSI measurement behavior and/or the CSI feedback related information are/is related to the configuration information; and performing, by the terminal device, CSI measurement based on the configuration information and the CSI measurement behavior and/or the CSI feedback related information, to obtain at least one piece of CSI, and sending all or some of the at least one piece of CSI to the network device. It can be learned that, in a scenario in which a plurality of transmission modes are supported, according to the foregoing method, the terminal device can measure CSI, and feed back the measured CSI to the network device.
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公开(公告)号：US20210013947A1
公开(公告)日：2021-01-14
申请号：US17037414
申请日：2020-09-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengyue DOU , Huiying ZHU , Liuliu JI , Yuanjie LI
IPC: H04B7/06
Abstract: Methods, systems, and apparatus for antenna selection are provided. In one aspect, a method includes: receiving downlink control information (DCI) from a network device, obtaining antenna selection indication information corresponding to the DCI, the antenna selection indication information indicating one or more first antennas that are in at least three antennas of a terminal device and are used for uplink transmission, and sending information to the network device by using the one or more first antennas.
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公开(公告)号：US20200235901A1
公开(公告)日：2020-07-23
申请号：US16786129
申请日：2020-02-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengyue DOU , Ting WANG , Yi HUANG , Yuanjie LI
Abstract: This application provides an information transmission method and a communications apparatus. The method includes: receiving downlink control information DCI, where the DCI includes indication information, the indication information indicates at least one demodulation reference signal DMRS antenna port group and layer information of downlink data, the at least one DMRS antenna port group is one or more of a plurality of DMRS antenna port groups, and DMRS antenna ports in a same DMRS antenna port group satisfy a quasi co-location QCL relationship; and determining, based on the indication information, a DMRS antenna port occupied by the downlink data. According to embodiments of this application, a DMRS antenna port can be indicated when DMRS antenna ports are grouped.
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公开(公告)号：US20200007299A1
公开(公告)日：2020-01-02
申请号：US16568681
申请日：2019-09-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei HAN , Jinyao LIANG , Ruiqi ZHANG , Ting WANG , Huangping JIN , Shengyue DOU , Yuanjie LI
IPC: H04L5/00 , H04W72/04 , H04B17/309
Abstract: One example method for measuring a channel state information reference signal includes receiving, from a network device, a partial channel state information reference signal resource sets selected from a plurality of channel state information reference signal resource sets and indication information indicating one or more resource sets for channel measurement, which are from the partial channel state information reference signal resource sets, and performing channel measurement by using the one of the one or more resource sets for channel measurement indicated by the indication information.
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公开(公告)号：US20190335399A1
公开(公告)日：2019-10-31
申请号：US16505225
申请日：2019-07-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ting WANG , Shengyue DOU , Yuanjie LI
Abstract: A power configuration method and a related device are provided. The method includes: receiving a first power configuration parameter and a second power configuration parameter from a network device; and when receiving a reference signal and data of a first antenna port group and a reference signal and data of a second antenna port group, determining, based on the first power configuration parameter and the reference signal of the first antenna port group, a power of the data that is from the first antenna port group, and determining, based on the second power configuration parameter and the reference signal of the second antenna port group, a power of the data that is from the second antenna port group, so that data sent by a corresponding antenna port group can be separately demodulated based on an obtained power, thereby improving accuracy for demodulating data of a plurality of antenna port groups.
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Patent Agency Ranking
公开(公告)号：US20190327695A1
公开(公告)日：2019-10-24
申请号：US16460638
申请日：2019-07-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibao REN , Zheng WANG , Ting WANG , Yuanjie LI
Abstract: Embodiments of this application disclose a power control method, including: sending, by a first device, a first message to a second device, where the first message includes power control information for a first beam of the second device, the first beam includes at least one beam, and the power control information includes a power control command; and receiving a signal sent by the second device by using the first beam, where a transmit power of a signal on the first beam is determined based on the power control information. The power control method provided in the embodiments of this application fully considers characteristics of NR to ensure efficient and proper allocation of power and thereby improve overall performance of a system.
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公开(公告)号：US20190260425A1
公开(公告)日：2019-08-22
申请号：US16401802
申请日：2019-05-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liuliu JI , Yi HUANG , Haibao REN , Yuanjie LI
Abstract: A method relating to quasi co-location functionality for wireless communication includes: a radio access network device sending signaling to a terminal device, where the signaling includes a quasi co-location type and at least one set of configuration parameters associated with the quasi co-location type, and the terminal device applying one set of configuration parameters associated with the first quasi co-location type, to learn of at least two quasi co-located antenna ports effective when at least one channel large-scale characteristic parameter associated with the first quasi co-location type is applied.
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公开(公告)号：US20190124631A1
公开(公告)日：2019-04-25
申请号：US16221280
申请日：2018-12-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haibao REN , Na DENG , Ting WANG , Yi HUANG , Yuanjie LI
Abstract: This application relates to a downlink control information indication method during coordinated multipoint transmission/reception in a wireless communications system. For a plurality of network side devices that send downlink data to user equipment on a same carrier and in a same subframe, downlink data transmission information used when the network side devices separately send the downlink data is indicated by using a plurality of pieces of downlink control information. Therefore, diversity transmission and/or multi-stream transmission in a multipoint coordination scenario are/is supported, and when the user equipment cannot normally receive downlink data sent by some network side devices because some downlink control information encounters an error, the user equipment may still receive, based on an indication of remaining downlink control information that encounters no error, downlink data sent by a network side device corresponding to the remaining downlink control information that encounters no error.
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公开(公告)号：US20190052502A1
公开(公告)日：2019-02-14
申请号：US16165109
申请日：2018-10-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibao REN , Yuanjie LI
Abstract: This application relates to a data transmission method. The method includes: receiving, in a subframe, first data and first demodulation reference signal(s) that are sent by a first network side device by using n antenna port(s), and second data and second demodulation reference signal(s) that are sent by a second network side device by using m antenna port(s), where time-frequency resources occupied by the first demodulation reference signal(s) are different from time-frequency resources occupied by the second demodulation reference signal(s), and a time-frequency resource occupied by the first data and that occupied by the second data at least partly overlap; and performing demodulation processing on the data based on the first demodulation reference signal(s) and the second demodulation reference signal(s). The data transmission method may be applied to coordinated multipoint transmission/reception in which a plurality of network side devices that are not quasi-co-located simultaneously send data to user equipment.
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公开(公告)号：US20190036589A1
公开(公告)日：2019-01-31
申请号：US16148759
申请日：2018-10-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibao REN , Ting WANG , Na DENG , Yuanjie LI
Abstract: A data transmission method and apparatus are provided. A terminal device obtains an antenna port allocation result indicating a first antenna port set and a second antenna port set. An antenna port in the first antenna port set is quasi co-located (QCL) with another antenna port in the first antenna port set, an antenna port in the second antenna port is QCL with another antenna port in the second antenna port set, and an antenna port in the first antenna port set is not QCL with an antenna port in the second antenna port set. The terminal device receives first data transmitted on an antenna port in the first antenna port set, and receives second data transmitted on an antenna port in the second antenna port set.
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