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公开(公告)号：EP4221403A3
公开(公告)日：2023-10-18
申请号：EP23158129.9
申请日：2019-02-02
发明人： LI, Junchao , TANG, Hao , TANG, Zhenfei
IPC分类号： H04L5/00 , H04W72/232 , H04W72/0453
摘要： This application provides a downlink control information transmission method and an apparatus. The method includes: receiving first downlink control information DCI in search space of a first carrier bandwidth part BWP, where if a frequency domain resource allocation type of the first BWP is a type 0, an L f -bit frequency domain resource allocation indication in the first DCI is an L f -bit bitmap, and bits in the L f - bit bitmap in descending order are respectively corresponding to resource block groups RBG 0 to RBG ( L f -1) in a second BWP; and for one bit in the L f -bit bitmap, when a value of the bit is 11, an allocated resource includes one RBG corresponding to the bit. According to this method, BWP switching or cross-BWP scheduling can be performed by using a truncated information field.
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公开(公告)号：EP3886526A1
公开(公告)日：2021-09-29
申请号：EP19895466.1
申请日：2019-11-11
发明人： LI, Junchao , TANG, Hao , ZHOU, Guohua , TANG, Zhenfei
IPC分类号： H04W76/10
摘要： Embodiments of this application disclose a wireless communication method and an apparatus, to improve robustness of data transmission between a terminal device and a node device. The method in the embodiments of this application includes: A terminal device incorrectly receives first data in a first cell, where the first cell is a first primary cell. The terminal device sends first indication information in a second cell, where the second cell is a secondary cell or a second primary cell, and the first indication information is used to indicate that the first data is incorrectly received in the first cell, or is used to request transmission of the first data in the second cell. The terminal device receives the first data in the second cell. Therefore, in the embodiments of this application, the terminal device triggers, by using the indication information, sending of the data in the second cell to the terminal device. This improves the robustness of the data transmission.
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公开(公告)号：EP3796728A1
公开(公告)日：2021-03-24
申请号：EP19812071.9
申请日：2019-05-31
发明人： LI, Junchao , TANG, Hao , TANG, Zhenfei
IPC分类号： H04W72/04
摘要： This application provides a resource configuration method. A plurality of virtual carriers with a same parameter set are configured in one cell or one carrier, so that a discrete spectrum and/or a non-standard bandwidth spectrum can be efficiently used. The method includes: determining, by a network device, N downlink virtual carriers or determining N downlink virtual carriers and M uplink virtual carriers, where the N downlink virtual carriers are configured in a same cell, or the N downlink virtual carriers and the M uplink virtual carriers are configured in a same cell, and the cell includes at least one carrier, and the N downlink virtual carriers correspond to a same parameter set, or the N downlink virtual carriers correspond to a same parameter set, and the M uplink virtual carriers correspond to a same parameter set, N>1, and N≥M≥1; and sending, by the network device, configuration information to a terminal, where the configuration information is used to configure the N downlink virtual carriers or used to configure the N downlink virtual carriers and the M uplink virtual carriers.
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公开(公告)号：EP3745631A1
公开(公告)日：2020-12-02
申请号：EP18913706.0
申请日：2018-04-04
发明人： HUA, Meng , LI, Junchao , JIAO, Shurong
摘要： This application provides a wireless communication method, apparatus, and system. The method includes: receiving higher layer signaling from a base station, to indicate a downlink aggregation coefficient S, where the downlink aggregation coefficient S corresponds to S consecutive transmission time units, and each transmission time unit is used to repeatedly transmit a transport block of a terminal; receiving physical layer signaling from a base station, where the physical layer signaling is used to schedule the transport block of the terminal and includes first indication information, and the first indication information is used to indicate that a part of resource of a downlink control region can be used to transmit the transport block of the terminal; and determining a valid time of the first indication information, where the valid time is one or more transmission time units in the S consecutive transmission time units. According to the wireless communication method, apparatus, and system provided in this application, a purpose of the part of resource in the downlink control region can be determined by introducing the valid time of first indication information, so that a probability of mutual interference between a transport block and downlink control information in the prior art is reduced, thereby improving performance of a communications system.
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公开(公告)号：EP3627907A1
公开(公告)日：2020-03-25
申请号：EP18816851.2
申请日：2018-06-14
发明人： LI, Junchao , TANG, Hao , WANG, Fan , TANG, Zhenfei
IPC分类号： H04W52/02
摘要： A communication method and a device are provided, to reduce power consumption of a terminal device and reduce system overheads. A communication method includes: determining, by a terminal device, that a plurality of BPs are activated, where the plurality of BPs are in a same carrier, the plurality of BPs include a first BP and a second BP, a first CSS is configured in the first BP, and common DCI is configured in the first CSS; and detecting, by the terminal device, the common DCI only in a second CSS when the second CSS is configured in the second BP, where the common DCI is configured in the second CSS.
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公开(公告)号：EP3611983A1
公开(公告)日：2020-02-19
申请号：EP18794017.6
申请日：2018-04-28
发明人： LI, Junchao , TANG, Hao , WANG, Fan , TANG, Zhenfei
IPC分类号： H04W72/04
摘要： This application provides a resource allocation method, user equipment, and a network device. The method includes: determining a first location of a first frequency domain resource; determining a second location of at least one bandwidth part based on the first location and an offset between the first location and the second location; determining the at least one bandwidth part based on the second location of the at least one bandwidth part and a bandwidth size of the at least one bandwidth part; and transmitting at least one of physical signal information and physical channel information in a first bandwidth part, where the first bandwidth part includes one or more bandwidth parts in the at least one bandwidth part. In embodiments of this application, the user equipment can determine a location of a frequency domain resource without depending on a system bandwidth size, that is, UE can allocate resources even if the UE does not know a system bandwidth.
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公开(公告)号：EP3609272A1
公开(公告)日：2020-02-12
申请号：EP18794382.4
申请日：2018-05-03
发明人： LI, Junchao , TANG, Hao , WANG, Fan , TANG, Zhenfei
摘要： This application provides an information monitoring method, a terminal, and a network device. The method includes: allocating, by a network device, a first frequency domain resource to a terminal, where the first frequency domain resource is used as a bandwidth part of the terminal; obtaining, by the network device, a bandwidth capability of the terminal, and determining, based on the bandwidth capability and the first frequency domain resource, a second frequency domain resource allocated to the terminal, where the second frequency domain resource is used by the terminal to monitor common information; and sending, by the network device, indication information, where the indication information is used to indicate the second frequency domain resource. According to embodiments of this application, common information and information about a terminal can be simultaneously monitored, thereby improving information monitoring efficiency.
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公开(公告)号：EP3609264A1
公开(公告)日：2020-02-12
申请号：EP18880016.3
申请日：2018-11-06
发明人： LI, Junchao , WANG, Yi , TANG, Hao , TANG, Zhenfei
IPC分类号： H04W72/04
摘要： This application provides a frequency hopping processing method and a device. The method includes: determining, by a communications device, a symbol used to transmit a demodulation reference signal of a shared channel; and determining, by the communications device, a time domain frequency hopping location of the shared channel based on the symbol used to transmit the demodulation reference signal. Through this application, frequency hopping processing of a shared channel in an NR network is implemented.
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公开(公告)号：EP3972181A1
公开(公告)日：2022-03-23
申请号：EP21189833.3
申请日：2018-08-10
发明人： LI, Xinxian , TANG, Hao , TANG, Zhenfei , LI, Junchao
摘要： Embodiments of this application provide a communication method, a communications apparatus, and a communications system, to determine a physical resource block (PRB) grid when a center frequency of a synchronization signal (SS) is inconsistent with a center frequency of a carrier, so as to correctly receive or transmit data. The method includes: receiving, by a terminal, an SS from a network device; determining, by the terminal, a first PRB grid based on the SS; receiving, by the terminal, first indication information from the network device, where the first indication information is used to indicate a first frequency offset between the first PRB grid and a second PRB grid; and determining, by the terminal, the second PRB grid based on the first PRB grid and the first frequency offset.
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公开(公告)号：EP3890385A2
公开(公告)日：2021-10-06
申请号：EP21157035.3
申请日：2018-07-23
发明人： LI, Junchao , TANG, Hao , TANG, Zhenfei
摘要： This application provides a data communication method, a terminal, and a base station, and the method includes: receiving, by a terminal, common information based on a first physical resource block index, where the first physical resource block index is determined based on a first bandwidth and/or a first location in frequency domain; and transmitting and/or receiving, by the terminal, terminal-specific information based on a second physical resource block index, where the second physical resource block index is determined based on a second bandwidth and/or a second location in frequency domain. In this application, a PRB index is determined to ensure correct communication between a base station and a terminal.
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