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1. 发明公开

EP4387350A1 METHOD AND APPARATUS FOR SENDING POSITIONING SIGNAL 审中-实审
公开(公告)号：EP4387350A1
公开(公告)日：2024-06-19
申请号：EP22868968.3
申请日：2022-08-22
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bichai , LI, Xueru
IPC分类号： H04W64/00
CPC分类号： H04W16/28 , H04W64/00
摘要： A positioning signal sending method and apparatus are provided. A first signal is generated, where duration of a first rising edge of the first signal is less than duration of a first falling edge, the duration of the first rising edge is duration of a rising edge of a main lobe waveform of the first signal, and the duration of the first falling edge is duration of a falling edge of the main lobe waveform of the first signal; and the first signal is sent. In embodiments of this application, rising time of a main lobe waveform of a signal generated is short, and shorter rising time of the main lobe waveform is more conducive to distinguishing two adjacent paths or identifying a first arrival path of a received signal. Therefore, if ranging is performed by using the first signal provided in embodiments of this application, a receiving device can distinguish between a plurality of paths with short delay intervals or more accurately determine arrival time of a first arrival path. This can improve ranging/positioning precision.

2. 发明公开

EP4239898A1 COMMUNICATION METHOD, APPARATUS, CHIP, STORAGE MEDIUM, AND PROGRAM PRODUCT 审中-实审
公开(公告)号：EP4239898A1
公开(公告)日：2023-09-06
申请号：EP21900072.6
申请日：2021-12-02
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bichai , HE, Hongli , LI, Xueru
IPC分类号： H04B7/0456
摘要： This application relates to a communication method, an apparatus, a chip, a storage medium, and a program product. The method includes: receiving indication information indicating a precoding matrix in a target codebook, where the precoding matrix is associated with reference signals of M (M>2) ports, the target codebook includes a precoding matrix with M rows, and only two rows include non-zero elements, a quantity of columns is 2, and the precoding matrix is a partially coherent precoding matrix; or only three rows include non-zero elements, and the precoding matrix is a partially coherent precoding matrix or a coherent precoding matrix; or only K (M>K≥4) rows include non-zero elements, and the precoding matrix is a partially coherent precoding matrix. In this application, an uplink precoding codebook and an indication method are enhanced, so as to meet an uplink enhancement requirement for transmit channel resource pooling. This solution may be applied to a communication system, for example, a V2X, an LTE-V, a V2V, an Internet of Vehicles, an MTC, an IoT, an LTE-M, an M2M, or an Internet of Things.

3. 发明公开

EP4319026A1 DOWNLINK SCHEDULING METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4319026A1
公开(公告)日：2024-02-07
申请号：EP22815096.7
申请日：2022-05-24
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bichai , LI, Xueru , KUANG, Yiru
IPC分类号： H04L5/00
摘要： This application provides a downlink scheduling method and an apparatus. The method includes: A terminal device reports first capability information to a network device, where the first capability information indicates that values of a maximum quantity of downlink MIMO layers supported by the terminal device on a first component carrier CC include a first maximum quantity M1 of downlink MIMO layers and a second maximum quantity M2 of downlink MIMO layers; and the terminal device receives first signaling sent by the network device, where the first signaling configures maximum MIMO layer quantity information corresponding to the first CC, and the maximum MIMO layer quantity information includes a first maximum quantity N1 of MIMO layers and a second maximum quantity N2 of MIMO layers. The first maximum quantity N1 of MIMO layers is not greater than the first maximum quantity M1 of downlink MIMO layers, and the second maximum quantity N2 of MIMO layers is not greater than the second maximum quantity M2 of downlink MIMO layers. According to the method, the network device can directly switch or dynamically adjust, after activating or deactivating one or more carriers by using a MAC CE, a maximum quantity of MIMO layers on an activated CC without reconfiguring a PDSCH parameter by using RRC signaling. This can avoid a delay and overheads caused by RRC-based reconfiguration.

4. 发明公开

EP4297308A1 COMMUNICATION METHOD AND COMMUNICATION DEVICE 审中-实审
公开(公告)号：EP4297308A1
公开(公告)日：2023-12-27
申请号：EP22766201.2
申请日：2022-03-02
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bichai , LI, Xueru
IPC分类号： H04L1/00
摘要： This application provides a communication method and a communication apparatus. The method includes: A first terminal device receives first indication information of a second terminal device, where the first indication information indicates demodulation reference signal DMRS information of the second terminal device, and a time-frequency resource selected by the second terminal device overlaps a time-frequency resource selected by the first terminal device; and the first terminal device determines DMRS information of the first terminal device based on the first indication information of the second terminal device, where the DMRS information includes a DMRS sequence and/or a DMRS port. In the solution provided in this application, a possibility of selecting a proper DMRS sequence and/or DMRS port can be improved, to reduce DMRS interference between terminal devices, so that channel estimation performance can be improved, and reliable communication can be implemented.

5. 发明公开

EP4240086A1 COMMUNICATION METHOD AND DEVICE 审中-实审
公开(公告)号：EP4240086A1
公开(公告)日：2023-09-06
申请号：EP21899998.5
申请日：2021-11-30
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bichai , LI, Xueru
IPC分类号： H04W72/04 , H04W72/00
摘要： This disclosure relates to a communication method and apparatus. Capability information is sent to a network device, where the capability information indicates antenna ports supported by P frequency domain units of a terminal device, and an antenna port supported by an i th frequency domain unit in the P frequency domain units includes an antenna port associated with the i th frequency domain unit and an antenna port that is in antenna ports associated with N i frequency domain units in the P frequency domain units and that can be switched to the i th frequency domain unit. In embodiments of this disclosure, a single frequency domain unit can support more antenna ports, thereby improving uplink transmission performance.

6. 发明公开

EP4340510A1 RESOURCE SELECTION METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4340510A1
公开(公告)日：2024-03-20
申请号：EP22814877.1
申请日：2022-04-12
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Yizhou , WANG, Bichai , LI, Xueru
IPC分类号： H04W72/08 , H04W72/02
摘要： This application provides a resource selection method and apparatus. The method includes: A first terminal device receives first indication information from a second terminal device, where the first indication information indicates quality of SL transmission between the first terminal device and the second terminal device on a first resource, and the first resource is a resource indicated by a third terminal device (S310); and the first terminal device determines that a quantity of times the first indication information meets a preset condition is greater than or equal to a preset value, and selects a second resource, where the second resource is different from the first resource (S320). According to the technical solution of this application, the preset condition is set, and resource selection is performed when link interference is large, to help improve an anti-interference capability of a communication system; and when the first resource indicated by the third terminal device can meet the quality of the SL transmission between the first terminal device and the second terminal device, there is no need to perform resource selection, which reduces energy consumption overheads.

7. 发明公开

EP4287724A1 SYNCHRONIZATION METHOD AND COMMUNICATION APPARATUS 审中-实审
公开(公告)号：EP4287724A1
公开(公告)日：2023-12-06
申请号：EP22766173.3
申请日：2022-02-28
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bichai , LI, Xueru
IPC分类号： H04W56/00
摘要： This application provides a synchronization method and a communication apparatus. The method includes: A first terminal uses another terminal as a candidate synchronization reference source with a highest synchronization priority. Because it is easy to deploy a terminal as a synchronization source, the first terminal can be easily synchronized to a terminal, and does not need to continuously search for another synchronization source after synchronization. Therefore, power consumption of searching for a synchronization source by the terminal can be reduced. Compared with a method in which a GNSS is preferentially used as a synchronization source or a base station is preferentially used as a synchronization source, a synchronization method of a first synchronization type provided in embodiments of this application can achieve synchronization more quickly, and power consumption overheads caused by continuous searching for a synchronization source can be reduced.

8. 发明公开

EP4387356A1 UWB COMMUNICATION METHOD, COMMUNICATION APPARATUS AND SYSTEM 审中-实审
公开(公告)号：EP4387356A1
公开(公告)日：2024-06-19
申请号：EP22860286.8
申请日：2022-08-12
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bichai , LI, Xueru
IPC分类号： H04W72/04
CPC分类号： H04W72/0446 , H04W72/541 , H04W72/04
摘要： This application discloses a UWB communication method, a communication apparatus, and a system, and relates to the wireless communication field. The method includes: UWB devices in a communication system may simultaneously send UWB physical frames. The UWB devices use a same specified frame structure. A specified position in the specified frame structure may include a first time interval. In this way, when there is a time difference between frame boundaries for performing transmitting of the UWB devices in the communication system, interference generated because an SHR part in a UWB physical frame overlaps a PHR or PSDU part in a UWB physical frame sent by another UWB device in transmission time when a specified UWB device sends the UWB physical frame can be avoided based on the first time interval. This improves communication efficiency of the UWB devices and improves accuracy of data exchange between the UWB devices.

9. 发明公开

EP4387180A1 SIGNAL TRANSMISSION METHOD, APPARATUS AND SYSTEM 审中-实审
公开(公告)号：EP4387180A1
公开(公告)日：2024-06-19
申请号：EP22869145.7
申请日：2022-09-09
申请人： Huawei Technologies Co., Ltd.
发明人： DUAN, Ruiyang , WANG, Bichai , LI, Xueru
IPC分类号： H04L27/26
CPC分类号： H04W4/02 , H04W4/06 , H04W56/00 , H04L27/26 , H04L5/00
摘要： This application provides a signal transmission method, an apparatus, and a system, to improve a preamble capacity in a preamble group, so that synchronous ranging of more apparatuses may be supported. The method includes: A second device generates a first signal, and sends the first signal to a first device. Correspondingly, after receiving the first signal, the first device processes the first signal based on a target preamble. The first signal includes a preamble symbol determined based on a target preamble whose length is N, and the target preamble belongs to a target preamble group including L preambles, where L is a positive integer greater than or equal to 3, and N is equal to 31, 91, 121, 127, or 133. When N is equal to 31, the target preamble group includes at least one of the following four preambles: +0000-0++0-0+000+-+0++++-00-00-; -0-00+000+0++-++0+-00+-0000++0; 0+0++00++-+-000++0+-0+0-0000-0; and 0++-00+-0---++0+000+00+0+0-+000, where + represents 1, and - represents -1.

10. 发明公开

EP4346301A1 COMMUNICATION METHOD AND DEVICE 审中-实审转让
公开(公告)号：EP4346301A1
公开(公告)日：2024-04-03
申请号：EP22827098.9
申请日：2022-03-28
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Bichai , ZHANG, Yanqing , LI, Xueru
IPC分类号： H04W72/02
摘要： This application relates to a communication method and device. A first terminal device sends first SCI in N first time units, where the first SCI indicates first configuration information, the first configuration information includes a resource of a first periodic transmission, the first periodic transmission includes M transmissions, a transmission cycle of the first periodic transmission is a first cycle, the M transmissions include P transmission time units, N is an integer greater than or equal to 1, M is an integer less than or equal to P, and P is an integer greater than N. The first terminal device sends, in N second time units, second SCI associated with the first SCI. The first terminal device does not need to send SCI for all transport blocks of a service of the first periodic transmission. For a second terminal device, a quantity of times of monitoring a control channel and decoding the SCI is reduced, so that power consumption of the second terminal device can be reduced. In addition, because a quantity of pieces of the SCI sent by the first terminal device is reduced, transmission overheads can also be reduced.

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