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公开(公告)号：US20220174653A1
公开(公告)日：2022-06-02
申请号：US17675807
申请日：2022-02-18
发明人： Liuliu JI , Haicun HANG , Hongzhe SHI , Xiang REN , Xiaoyan BI
摘要： Example methods and apparatus for determining a transport block size are described. One example method includes determining a transport block size (TBS) of a first transport block by a communications apparatus. The communications apparatus determines a TBS of a second transport block based on the TBS of the first transport block, where the first transport block is different from the second transport block, the TBS of the second transport block is equal to the TBS of the first transport block, and a data channel carrying the first transport block and a data channel carrying the second transport block occupy a same time domain resource.
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公开(公告)号：US20210204288A1
公开(公告)日：2021-07-01
申请号：US17172919
申请日：2021-02-10
发明人： Liuliu JI , Junchao LI , Xiaoyan BI
摘要： When a network device in embodiments of the present invention sends bandwidth resource indication information to a terminal by using downlink control information, the network device may impose some constraints on uplink transmission mode—related configuration information or SRS-related configuration information on an indicated bandwidth resource, and other indication information carried in the downlink control information, so that no ambiguity occurs when the terminal parses the bandwidth resource indication information. Alternatively, when a side of a terminal receives bandwidth resource indication information sent by a network device by using downlink control information, the terminal parses, in an unambiguous interpretation manner, configuration information on a bandwidth resource indicated by the bandwidth resource indication information in the downlink control information. Therefore, a BWP is smoothly switched to perform uplink transmission, uplink transmission efficiency can be improved, and system robustness can be improved.
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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
发明人： Shengyue DOU , Huiying ZHU , Liuliu JI , Yuanjie LI
IPC分类号： H04B7/06
摘要： 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：US20190327685A1
公开(公告)日：2019-10-24
申请号：US16502950
申请日：2019-07-03
摘要： The present disclosure discloses an uplink signal sending method and receiving method, a terminal, and a base station. The method includes: receiving, by a terminal, downlink signaling delivered by a base station, and determining, based on the downlink signaling, a waveform used by the terminal; determining, by the terminal based on a correspondence between a waveform and a power difference, a power difference corresponding to a target time-frequency resource; determining, based on the determined power difference, an uplink transmit power of an uplink signal that is mapped on the target time-frequency resource, and sending the uplink signal by using the power. The target time-frequency resource refers to an OFDM symbol multiplexed by an RS and a channel, or may be an RE that is used for mapping a channel and that is in an OFDM symbol multiplexed by an RS and a channel. In embodiments, a transmit power of the uplink signal on the target time-frequency resource is reduced to reduce the OFDM symbol multiplexed by an RS and a channel, so that a power-limited terminal can also normally send data, thereby optimizing use of a transmit power of the power-limited terminal
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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
发明人： Liuliu JI , Yi HUANG , Haibao REN , Yuanjie LI
摘要： 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：US20230164783A1
公开(公告)日：2023-05-25
申请号：US18151986
申请日：2023-01-09
发明人： Xianda LIU , Xueru LI , Liuliu JI
IPC分类号： H04W72/1273 , H04W72/20
CPC分类号： H04W72/1273 , H04W72/20
摘要： Embodiments of this disclosure provide a communication method and apparatus, a terminal device, a network device, and a medium. In the method, the terminal device receives first scheduling information from the network device, where the first scheduling information indicates a set of shared channel transmission occasions and a first beamforming manner of a shared channel. The terminal device receives second scheduling information from the network device, where the second scheduling information indicates a control channel transmission occasion and/or a second beamforming manner of a control channel. If the terminal device determines that time domain resources of the control channel transmission occasion and one or more shared channel transmission occasions in the set of shared channel transmission occasions at least partially overlap, the terminal device determines at least one shared channel transmission occasion from the set based on at least one of the first beamforming manner and the second beamforming manner.
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公开(公告)号：US20220014299A1
公开(公告)日：2022-01-13
申请号：US17487397
申请日：2021-09-28
发明人： Liuliu JI , Hongzhe SHI , Haicun HANG , Min ZHANG , Xiaohan WANG , Xiaoyan BI
摘要： Embodiments of this application provide a downlink control information transmission method, an apparatus, and a system, so that after receiving one piece of DCI, the terminal device learns whether blind detection of DCI needs to be continued. The method includes: A terminal device receives first DCI, where the first DCI includes first indication information, and the first indication information is used to indicate a first antenna port. The terminal device assumes, based on the first antenna port and antenna port configuration information, whether second DCI exists. The configuration information may include an index of a CDM group to which each of a plurality of antenna ports belongs and a maximum quantity of CDM groups that is supported by the terminal device; or the configuration information may include one or more antenna port groups, and each of the one or more antenna port groups includes one or more antenna ports.
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8.发明申请公开(公告)号：US20210377923A1
公开(公告)日：2021-12-02
申请号：US17401503
申请日：2021-08-13
发明人： Shibin GE , Haicun HANG , Liuliu JI , Xiaohan WANG , Xiaoyan BI
摘要： This application provides a multi-downlink control information based transmission technology, in which a terminal reports information about a capability of the terminal to support multi-DCI transmission, or a network device sends indication information of types or a quantity of multi-DCI based transmissions to a terminal, and the network device performs resource scheduling on the terminal on this basis, thereby helping improve resource scheduling efficiency and reduce processing complexity of the terminal. In addition, this application also provides a corresponding solution for a scenario in which a CA/DC based transmission scenario coexists with multi-DCI based transmission, thereby helping the terminal share a multi-DCI based transmission capability and a CA/DC based transmission capability, and improve a processing capability of the terminal.
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公开(公告)号：US20210058209A1
公开(公告)日：2021-02-25
申请号：US16949676
申请日：2020-11-10
摘要： This application provides a communication method and a communications apparatus. The communication method includes: if a first SRS resource collides with a second SRS resource in a same slot or a same symbol, sending and receiving an SRS on one of the first SRS resource or the second SRS resource in the same slot or the same symbol; and/or if at least one GP symbol between resources included in a first resource set is the same as a symbol in a second resource, sending and receiving an SRS or a PUCCH on the second resource. The communication method is applicable to sending and receiving a signal used for uplink channel quality measurement when a resource collision occurs.
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公开(公告)号：US20200145987A1
公开(公告)日：2020-05-07
申请号：US16673509
申请日：2019-11-04
发明人： Liuliu JI , Haibao REN , Long QIN
摘要： Embodiments of this application provide a power headroom reporting method and apparatus. Impact of introduction of multi-beam transmission, a plurality of time-frequency resource configurations, or an uplink multi-waveform technology on a power headroom is considered, so that the power headroom is calculated and reported more accurately, to help a network side make a scheduling decision, thereby improving communication performance.
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