Patents by Inventor Liuliu JI
Liuliu JI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11870525Abstract: This application provides a channel measurement configuration method and a communications apparatus. The method includes: receiving, by a terminal device, a measurement configuration, where the measurement configuration includes a plurality of resource settings, and the plurality of resource settings include a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement; receiving, by the terminal device, channel state information reference signals CSI-RSs on resources configured in the plurality of resource settings; and generating, by the terminal device, a CSI group based on the CSI-RSs, where the CSI group includes one or more pieces of CSI. In embodiments of this application, a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement are associated in one report setting.Type: GrantFiled: June 2, 2021Date of Patent: January 9, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Haicun Hang, Shibin Ge, Hongzhe Shi, Xiaohan Wang, Liuliu Ji, Xiaoyan Bi
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Patent number: 11804924Abstract: A search space blind detection method and a communication apparatus. The method includes: a terminal receives indication information that corresponds to a first search space set and that is sent by a network device, where the indication information is used to indicate one or more search space groups, one search space group includes at least two search spaces having an association relationship, and at least one search space in one search space group belongs to the first search space set; and then, the terminal determines, based on the indication information, a quantity of blind detection times corresponding to the first search space set. The quantity of blind detection times corresponding to the first search space set is determined by considering an association relationship between a plurality of search spaces.Type: GrantFiled: August 23, 2021Date of Patent: October 31, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Haicun Hang, Shibin Ge, Liuliu Ji, Xiaohan Wang, Xiaoyan Bi
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Publication number: 20230344585Abstract: This application provides an indication method, a terminal device, and a radio access network device. One example method includes: A terminal device receives an SRS resource indication (SRI), where an index value included in the SRI belongs to a first index value set, the first index value set includes a first index value and a second index value, the first index value and the second index value correspond to a plurality of same SRS resources, and the first index value and the second index value correspond to different SRS resource sets for which power is to be adjusted. The terminal device sends physical uplink shared channel (PUSCH) data based on the SRI.Type: ApplicationFiled: June 29, 2023Publication date: October 26, 2023Inventors: Xianda LIU, Liuliu JI
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Publication number: 20230308242Abstract: This application provides a quasi co-location (QCL) indication method and a related device, and may be applied to coordinated multistation transmission. In the method, a terminal receives QCL indication information, where the QCL indication information indicates that time-frequency spread information of a demodulation reference signal (DMRS) is associated with time-frequency spread information of N tracking reference signals (TRSs) (or a TRS corresponding to the DMRS) and that delay-frequency offset information of the DMRS is associated with delay-frequency offset information of M TRSs.Type: ApplicationFiled: January 30, 2023Publication date: September 28, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Liuliu Ji, Xiaoyan Bi
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Publication number: 20230299893Abstract: A terminal device detects first DCI on a first PDCCH monitoring occasion, detects second DCI on a second PDCCH monitoring occasion, generates a hybrid automatic repeat request acknowledgement HARQ-ACK codebook based on the first PDCCH monitoring occasion and a DAI indication carried in at least one of the first DCI and the second DCI, and sends the HARQ-ACK codebook. The first DCI and the second DCI are for scheduling a same transport block TB, and the first DCI and the second DCI carry a same downlink assignment index DAI indication.Type: ApplicationFiled: April 21, 2023Publication date: September 21, 2023Inventors: Xianda Liu, Liuliu Ji
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Patent number: 11751187Abstract: In a signal transmission method, a user equipment receives a first signal from a wireless network device; and the user equipment determines spatial information of a to-be-transmitted second signal based on the first signal, and transmits the to-be-transmitted second signal by using the spatial information. An uplink transmit beam is determined by using related information of a downlink receive beam, so that the UE can efficiently determine spatial information of an uplink signal to be transmitted by the UE.Type: GrantFiled: August 30, 2021Date of Patent: September 5, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Liuliu Ji, Yi Huang, Yuanjie Li
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Patent number: 11705941Abstract: This application relates to the field of communications technologies and provides a quasi co-location indication method and an apparatus, so that a terminal learns of a quasi co-location relationship between a plurality of antenna ports of a first reference signal resource. The method includes: A terminal receives quasi-co-location indication information, where the quasi-co-location indication information is used to indicate M antenna port groups corresponding to a first reference signal resource, each of the M antenna port groups includes one or more CDM groups of the first reference signal resource, the CDM group includes a plurality of antenna ports, and any two antenna ports in a same antenna port group are in a quasi-co-location relationship. Then, the terminal determines a quasi-co-location relationship between a plurality of antenna ports of the first reference signal resource based on the quasi-co-location indication information.Type: GrantFiled: July 8, 2021Date of Patent: July 18, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Liuliu Ji, Xiaohan Wang, Haicun Hang, Shibin Ge, Xiaoyan Bi
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Publication number: 20230078895Abstract: This application provides an uplink reference signal sending method, an uplink reference signal receiving method, and a communication apparatus, to obtain an accurate measurement result of an uplink channel. The method includes: determining, according to a resource allocation rule, downlink reference signal resources corresponding to a plurality of first resources used to carry an uplink reference signal in a plurality of uplink reference signal resources, where each uplink reference signal resource includes one or more first resources; determining, based on the downlink reference signal resource corresponding to each first resource, a precoding matrix corresponding to each first resource; and then sending a precoded uplink reference signal, where the precoded uplink reference signal is obtained by precoding the uplink reference signal based on the precoding matrix corresponding to each first resource.Type: ApplicationFiled: November 7, 2022Publication date: March 16, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Ye Wu, Liuliu Ji
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Publication number: 20230030483Abstract: A power control method and apparatus are disclosed, the method is applied to a terminal that has a capability of supporting being configured with a plurality of control resource set pool indexes and/or that is configured with the plurality of control resource set pool indexes. The method includes: receiving a first physical downlink control channel sent by a network device (S501), where the first physical downlink control channel carries a power offset corresponding to a physical downlink control channel; determining a transmit power based on a power control process corresponding to the network device (S502), where the power control process is for accumulating power offsets indicated by the network device, and determining the transmit power for the physical downlink control channel based on an accumulation result; and sending the physical downlink control channel to the network device at the transmit power (S503).Type: ApplicationFiled: October 7, 2022Publication date: February 2, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Liuliu JI, Haicun HANG, Xiaoyan BI, Hongzhe SHI
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Publication number: 20230029373Abstract: Embodiments of this application disclose a retransmission method and an apparatus in a multi-transmission reception point architecture, to improve HARQ retransmission performance in the multi-TRP architecture. The method includes: receiving first downlink control information from a network device on a first control resource; and receiving a first transmission version of downlink data from the network device based on the first downlink control information. The first transmission version is retransmission data of a second transmission version of the downlink data. Second downlink control information for scheduling the second transmission version is associated with a second control resource. The first control resource and the second control resource are a same control resource, or the first control resource and the second control resource belong to a same resource group.Type: ApplicationFiled: October 5, 2022Publication date: January 26, 2023Inventors: Yongping Zhang, Liuliu Ji, Tie Li
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Publication number: 20220417965Abstract: This disclosure provides a method for transmitting data on a physical uplink shared channel, a data transmission method, a terminal, a network device, and a chip system. A terminal receives indication information delivered by a plurality of network devices. The indication information is used to indicate a plurality of precoders (precoders). The terminal determines the plurality of precoders based on the indication information, and repeatedly sends a physical uplink shared channel PUSCH by using the plurality of precoders. Different precoders are used for at least two of the PUSCHs. In this disclosure, the PUSCH is repeatedly sent by using different precoders. This disclosure is applicable to 5G and future wireless networks.Type: ApplicationFiled: August 17, 2022Publication date: December 29, 2022Inventors: Mingzhe WANG, Liuliu JI, Xiang REN, Haicun HANG, Hongzhe SHI, Xiaoyan BI
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Patent number: 11516754Abstract: This application provides a communication method, a communications apparatus, and a communications system. The method includes: receiving first indication information, where the first indication information indicates at least two first parameters, and the at least two first parameters are used for determining at least one of an uplink data channel power, an uplink control channel power, or an uplink reference signal power during dynamic scheduling; and determining a second parameter obtained when a first time element is not used to transmit at least one of an uplink data channel, an uplink control channel, or an uplink reference signal, where the second parameter is at least one of a nominal power, a path loss adjustment factor, a path loss, or a closed-loop power control adjustment value. The method is applicable to power control and/or power headroom reporting in a multi-beam system.Type: GrantFiled: November 19, 2018Date of Patent: November 29, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Liuliu Ji, Yuanjie Li
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Publication number: 20220330245Abstract: A resource determining method includes selecting, by a terminal device from a plurality of search spaces, a search space of the plurality of search spaces that satisfies a preset condition. The plurality of search spaces correspond to search spaces for repeated transmission through a same downlink control channel. The resource determining method further includes determining, by the terminal device, an uplink control channel resource based on a control channel element (CCE) start location of the search space of the plurality of search spaces that satisfies the preset condition.Type: ApplicationFiled: June 17, 2022Publication date: October 13, 2022Inventors: Haicun HANG, Hongzhe SHI, Liuliu JI, Mingzhe WANG
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Patent number: 11463132Abstract: 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.Type: GrantFiled: May 2, 2019Date of Patent: October 4, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Liuliu Ji, Yi Huang, Haibao Ren, Yuanjie Li
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Patent number: 11463226Abstract: This application describes a resource indication method and a communications device. A resource indication method may include sending, by a first device, first indication information to a second device in an nth time unit, where the first indication information indicate a first time domain resource of a first link or a second link in an (n+k0)th time unit to an (n+k1)th time unit. In the method, the first link is a link between the first device and the second device, the second link is a link between the second device and a third device, k0 is an integer greater than or equal to 0 and less than or equal to k1, and k1 is an integer.Type: GrantFiled: October 31, 2019Date of Patent: October 4, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yi Qin, Zhongfeng Li, Yi Ren, Zhihang Li, Liuliu Ji, Jian Luo
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Publication number: 20220272728Abstract: This application provides a reference signal transmission method and an apparatus, used in a multipoint coordination transmission scenario. In one example method, a frequency domain resource that carries a target reference signal in a frequency domain resource or a time domain resource that is associated with each QCL assumption may be separately determined, and then the target reference signal carried on the frequency domain resource that is associated with the QCL assumption is separately received by using the corresponding QCL assumption.Type: ApplicationFiled: May 5, 2022Publication date: August 25, 2022Inventors: Xianda LIU, Kunpeng LIU, Liuliu JI
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Publication number: 20220224466Abstract: Embodiments of this application provide an uplink transmission method and apparatus, a computer-readable storage medium, a computer program product, and the like, to implement intra-frequency uplink transmission by a terminal device. The method includes: determining a plurality of serving cells, where the plurality of serving cells have at least one of the following association relationships: operating frequency bands are completely the same, or the operating frequency bands are partially the same; and sending uplink signals to the plurality of serving cells, where the sending of the uplink signal meets a preset condition.Type: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Inventors: Liuliu JI, Haicun HANG, Hongzhe SHI, Xiang REN, Xiaoyan BI
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Patent number: 11381989Abstract: A method includes: receiving, by a network device, k channel measurement values, k channel measurement resource identifiers, and k interference measurement resource identifiers that are sent by user equipment, where k is an integer greater than or equal to 1, each channel measurement value corresponds to one channel measurement resource identifier and one interference measurement resource identifier, and the channel measurement value is calculated based on the channel measurement resource identifier and the interference measurement resource identifier that correspond to the channel measurement value.Type: GrantFiled: April 15, 2020Date of Patent: July 5, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Jinyao Liang, Ting Wang, Yuanjie Li, Liuliu Ji
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Publication number: 20220174660Abstract: This application provides a communication method and a communications apparatus. A terminal may perform, based on first configuration information for a maximum of a first quantity of times, blind detection at PDCCH candidate locations configured by a network device for a first CORESET group. In comparison with a solution, in the conventional technology, in which the terminal blindly detects a PDCCH for all CORESETs in a target cell for a maximum of the first quantity of times, blind detection is performed for a CORESET corresponding to each TRP for a larger quantity of times. Therefore, scheduling flexibility can be improved.Type: ApplicationFiled: February 15, 2022Publication date: June 2, 2022Inventors: Liuliu JI, Fei GAO, Haicun HANG, Xiaoyan BI
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Publication number: 20220174524Abstract: This disclosure provides a communication method to implement a function of a hybrid automatic repeat request (HARQ) feedback codebook in a multi-station scenario. A terminal device receives a configuration group identifier, determines a physical downlink shared channel (PDSCH) reception occasion corresponding to the configuration group identifier, and transmits feedback information of the PDSCH reception occasion based on the configuration group identifier corresponding to the PDSCH reception occasion and according to a predetermined rule of feedback sorting.Type: ApplicationFiled: February 15, 2022Publication date: June 2, 2022Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Haicun Hang, Liuliu Ji, Hongzhe Shi, Xiaoyan Bi