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公开(公告)号：EP4447536A1
公开(公告)日：2024-10-16
申请号：EP22914204.7
申请日：2022-12-12
发明人： GAO, Xiang , LIU, Kunpeng , GONG, Mingxin
IPC分类号： H04W28/02
摘要： Embodiments of this application disclose a communication method and a related apparatus. The method includes: receiving downlink data from a network device, where the downlink data corresponds to one or more code blocks CBs; determining, based on the downlink data, a decoded sequence obtained by performing channel decoding on the downlink data, where the decoded sequence is an estimation result of the CB, and one decoded sequence corresponds to one CB; and sending indication information to the network device, where the indication information indicates first information, the first information is determined based on a quantity of non-zero elements or a quantity of zero elements included in first data, the first data is determined based on the decoded sequence, one piece of first data corresponds to one CB, the first data is related to C and H, C is the decoded sequence obtained by performing the channel decoding on the downlink data, and H is a check matrix corresponding to the CB. According to the solution of this application, CQI adjustment efficiency can be improved, thereby assisting the network device in better selecting an appropriate configuration parameter for downlink transmission for a terminal device.
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公开(公告)号：EP4213454A1
公开(公告)日：2023-07-19
申请号：EP21874590.9
申请日：2021-09-30
发明人： GAO, Xiang , LIU, Kunpeng , GONG, Mingxin
摘要： This application provides a reference signal mapping method and an apparatus, to resolve a problem that a quantity of supported ports and a quantity of supported transmitted streams are excessively small due to an existing reference signal mapping rule in which a fixed quantity of time-frequency resources are used for mapping. This improves system performance and a capacity, and can be applied to MIMO systems such as 5G and V2X. The method includes: determining a plurality of resource groups and a plurality of port groups in a time-frequency unit based on a preset or configured size of a first frequency domain unit and a preset or configured first port index, and mapping, based on a port group to which a port corresponding to the first port index belongs, a reference signal corresponding to the port to a resource group corresponding to the port group in the time-frequency unit.
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3.发明公开
公开(公告)号：EP4012956A1
公开(公告)日：2022-06-15
申请号：EP20853645.8
申请日：2020-08-14
发明人： LIU, Xianda , LIU, Kunpeng , XUE, Lixia , GAO, Xiang , ZHANG, Xu
摘要： This application provides a method and an apparatus for determining a hybrid automatic repeat request-acknowledgment HARQ-ACK resource. The method includes: determining at least one PDCCH monitoring occasion, where HARQ-ACK feedback bits scheduled by using DCI monitored on the at least one PDCCH monitoring occasion are carried on a same PUCCH resource; and determining target DCI based on index values of a first parameter that correspond to first DCI, where the first DCI is on a first PDCCH monitoring occasion, the first PDCCH monitoring occasion is the last PDCCH monitoring occasion in the at least one PDCCH monitoring occasion, the first parameter is a control-resource set or a control-resource set group, and the target DCI is used to indicate the PUCCH resource. According to the foregoing technical solution, a network device can control a PUCCH resource used for a HARQ-ACK feedback of a terminal device, to improve uplink transmission performance and avoid interference in uplink transmission.
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公开(公告)号：EP4007200A1
公开(公告)日：2022-06-01
申请号：EP20848109.3
申请日：2020-07-29
发明人： LIU, Xianda , LIU, Kunpeng
IPC分类号： H04L5/00
摘要： A DMRS port indication method and an apparatus are provided, to meet NC-JT transmission. A network device determines DMRS port indication information, and sends the DMRS port indication information. The DMRS port indication information is used to indicate a DMRS port set, the DMRS port set is one of a plurality of DMRS port sets, DMRS ports included in at least one of the plurality of DMRS port sets belong to a plurality of CDM groups, and a quantity of codewords corresponding to each of the plurality of DMRS port sets is 1. A part or all of the plurality of DMRS port sets are first DMRS port sets, and each first DMRS port set includes at least a DMRS port with a largest port number in a first CDM group and a DMRS port with a largest port number in a second CDM group. A terminal device determines a DMRS port based on the DMRS port indication information.
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公开(公告)号：EP3972145A1
公开(公告)日：2022-03-23
申请号：EP21186859.1
申请日：2018-04-18
发明人： LIU, Xianda , LIU, Kunpeng , SHEN, Zukang , CHENG, Yan
摘要： Embodiments of the present invention provide a codebook indication method, so as to reduce calculation complexity of UE by specifying a serial number sequence of precoding. The embodiments of the present invention further provide user equipment. The technical solutions provided in the embodiments of the present invention may optimize indication of a codebook.
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公开(公告)号：EP3952120A1
公开(公告)日：2022-02-09
申请号：EP20782209.9
申请日：2020-03-23
发明人： GAO, Xiang , LIU, Kunpeng
IPC分类号： H04B7/00
摘要： This application provides a communication method and apparatus. The method includes: A terminal device receives a first parameter from a network device, where the first parameter is used to determine indication information of a first precoding matrix and a second parameter, and the second parameter is used to determine indication information of a second precoding matrix; and then, the terminal device sends the indication information of the second precoding matrix to the network device. The method and the apparatus may be used to determine indication information of a precoding matrix when a rank indicator value reported by the terminal device is 3 or 4.
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公开(公告)号：EP3944664A1
公开(公告)日：2022-01-26
申请号：EP20787533.7
申请日：2020-04-03
发明人： ZHANG, Di , LIU, Kunpeng
IPC分类号： H04W36/00
摘要： This application provides a link failure recovery method and apparatus. When a link failure occurs and link recovery is performed, if a terminal device determines that no new link is identified, according to the method, the terminal device may report, to a network device, an identifier of a cell in which the link failure occurs and information indicating whether a new link is identified for each cell. The network device may reconfigure a new resource set based on the information, and notify the terminal device of the new resource set by using downlink control information DCI. In other words, a reference signal in another resource set is triggered by using the DCI, and the reference signal in the resource set is reported for link recovery. In this way, a link failure recovery probability can be increased, a link failure recovery delay can be reduced, and link failure recovery reliability can be improved.
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公开(公告)号：EP3905541A1
公开(公告)日：2021-11-03
申请号：EP20739216.8
申请日：2020-01-10
发明人： LIU, Xianda , LIU, Kunpeng , ZHANG, Leiming
IPC分类号： H04B7/0413
摘要： This application provides a communications method and apparatus, to improve uplink transmission performance. In the method, a terminal determines and sends capability indication information. The capability indication information is used to determine a power scaling factor, the power scaling factor is a ratio of a sum of actual transmit power of n non-zero antenna ports to channel transmit power, and a maximum value of the channel transmit power is rated maximum transmit power of a system. The capability indication information is used to indicate at least one codeword; and/or the capability indication information is used to indicate a quantity of additionally configured SRS ports when a value of a maximum transmission rank is x, where the quantity of additionally configured SRS ports is different from a maximum quantity of antenna ports; and/or the capability indication information is used to indicate whether a plurality of SRS resources with different quantities of ports can be configured when the value of the maximum transmission rank is x; and/or the capability indication information is used to indicate a value of the power scaling factor when the value of the transmission rank is x, where a value of x is at least one of {1, 2, 3}.
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公开(公告)号：EP3860091A1
公开(公告)日：2021-08-04
申请号：EP19872321.5
申请日：2019-09-24
发明人： LIU, Xianda , ZHANG, Di , LIU, Kunpeng
IPC分类号： H04L29/08
摘要： This application provides an information receiving method and apparatus, and an information sending method and apparatus. The method includes: sending configuration information, where the configuration information is used to indicate a target sounding reference signal SRS resource, the target SRS resource is associated with K channel state information reference signal CSI-RS resources, K is an integer greater than 1, and the K CSI-RS resources are used to determine a precoding scheme used for an SRS carried on the target SRS resource; and receiving the SRS carried on the target SRS resource. In this application, transmission performance is improved.
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公开(公告)号：EP3829243A1
公开(公告)日：2021-06-02
申请号：EP19860582.6
申请日：2019-08-29
发明人： GUAN, Peng , LIU, Kunpeng , LIU, Xiangpu , ZHANG, Xi
IPC分类号： H04W72/04
摘要： This application provides a resource management method, including: receiving, by a terminal device, a plurality of beams sent by a network device; determining, by the terminal device, a correlation of at least two beams in the plurality of beams based on index numbers of the at least two beams; and reporting, by the terminal device, the at least two beams to the network device, where a correlation between any two of the at least two beams meets a requirement of the network device. The method can enable the terminal device to report a beam to the network device based on a correlation requirement of the network device.
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