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公开(公告)号：US20230283350A1
公开(公告)日：2023-09-07
申请号：US18315431
申请日：2023-05-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Jianwei ZHOU , Hejia LUO , Yu WANG , Jun WANG
IPC: H04B7/06 , H04L5/00 , H04B17/318
CPC classification number: H04B7/0639 , H04L5/0051 , H04B17/328
Abstract: Embodiments of this application provide a channel matrix determining method, an apparatus, and a system, relating to the field of communication technologies, to resolve a technical problem that a manner in which a network device determines a precoding matrix based on an existing PMI indicator is not applicable to long-distance communication. The method includes: A terminal device obtains a plurality of reference signals, determines a first channel matrix based on the plurality of reference signals, and feeds back, to a network device, first information indicating some channel elements in the first channel matrix. The terminal device may further receive a downlink signal determined based on the first information and sent by the network device. A channel element in the some channel elements is determined based on signal strength and/or a time-frequency resource of the reference signal.
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公开(公告)号：US20230156822A1
公开(公告)日：2023-05-18
申请号：US18156941
申请日：2023-01-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Hejia LUO , Chenlei XU , Zhenjun JIANG
IPC: H04W74/08
CPC classification number: H04W74/0841 , H04W74/0891
Abstract: This application discloses random access methods and communication apparatuses, and relates to the field of communication technologies. In an example method, after determining a correspondence between scanning periods of different scanning areas within coverage of a synchronization signal block (SSB) beam and random access occasions (ROs), a second communication apparatus sends, through broadcasting, a first message including information about the correspondence. A first communication apparatus receives the first message, determines an RO based on a scanning area in which the first communication apparatus is located and the first message, and initiates random access.
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公开(公告)号：US20250062887A1
公开(公告)日：2025-02-20
申请号：US18939007
申请日：2024-11-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Jianwei ZHOU , Jun WANG , Dali QIN , Yinggang DU
IPC: H04L5/14 , H04W72/0446
Abstract: This application provides a resource configuration method and a related apparatus. The method includes: A first terminal device receives first configuration information used to configure a first time division duplex frame structure. Because an interval between adjacent uplink time domain resources in the first time division duplex frame structure is determined based on a largest timing advance and a smallest timing advance in a terminal device that uses the first time division duplex frame structure, and the terminal device that uses the first time division duplex frame structure includes the first terminal device, after the first terminal device sends uplink data on a first uplink time domain resource in the first time division duplex frame structure by using a first timing advance, when the uplink data arrives at a network device, a time domain resource that can be used by the network device is an uplink time domain resource.
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公开(公告)号：US20230163935A1
公开(公告)日：2023-05-25
申请号：US18150930
申请日：2023-01-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhenjun JIANG , Yunfei QIAO , Jianwei ZHOU , Chenlei XU
CPC classification number: H04L5/0098 , H04L5/023
Abstract: The present disclosure relates to methods for indicating a direct current subcarrier and communication apparatuses. In one example method, a second communication apparatus may explicitly or implicitly indicate a location of a first direct current subcarrier and a location of a second direct current subcarrier to a first communication apparatus. The first direct current subcarrier is a direct current subcarrier corresponding to a transmit frequency used by the second communication apparatus. The second direct current subcarrier is a direct current subcarrier corresponding to a receive frequency used by the first communication apparatus.
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5.发明申请公开(公告)号：US20220312355A1
公开(公告)日：2022-09-29
申请号：US17830863
申请日：2022-06-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yu WANG , Jianwei ZHOU , Yunfei QIAO , Hejia LUO , Jun WANG
Abstract: The disclosure provides information transmission methods and communication apparatuses. One example method includes that a receiving apparatus receives a synchronization signal and cell-specific information that are sent by a sending apparatus on a first beam, where the cell-specific information includes indication information which indicates whether there is beam-specific information, and the first beam comprises a plurality of second beams. In response to determining that the indication information indicates that there is the beam-specific information, the receiving apparatus receives beam-specific information of second beam of the plurality of second beams, where the beam-specific information is sent by the sending apparatus on the second beam, and the receiving apparatus is within coverage of the second beam. The receiving apparatus performs initial access using the synchronization signal, the cell-specific information, and the beam-specific information.
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Patent Agency Ranking
公开(公告)号：US20220295434A1
公开(公告)日：2022-09-15
申请号：US17825817
申请日：2022-05-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Chenlei XU , Jianwei ZHOU , Rong LI
Abstract: Example communication methods and apparatus are described. In one example method, a terminal receives a first information by using a serving beam, where the first information indicates a delay compensation parameter corresponding to a target beam. The target beam and the serving beam are different beams. The terminal determines, based on a full timing advance and the delay compensation parameter corresponding to the target beam, a differential timing advance corresponding to the target beam.
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7.发明申请公开(公告)号：US20220264662A1
公开(公告)日：2022-08-18
申请号：US17738461
申请日：2022-05-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenlei XU , Jianwei ZHOU , Xiaolu WANG , Hejia LUO
Abstract: This application discloses a random access preamble configuration method applicable to a satellite network and a communication apparatus. In the method, a random access preamble location offset and duration of a PRACH occasion can be flexibly configured based on features of a satellite system. The method includes: A receiving apparatus receives first indication information, where the first indication information includes indication information used to identify the random access preamble location offset at the physical random access channel PRACH occasion. The receiving apparatus transmits a random preamble based on the first indication information, where the random preamble includes a sequence part and a guard time. Because a communication distance is relatively long and a transmission delay difference between users is relatively large in a satellite communication system, time domain resources occupied by the PRACH occasion can be minimized by using this method.
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公开(公告)号：US20220264417A1
公开(公告)日：2022-08-18
申请号：US17738810
申请日：2022-05-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Hejia LUO , Chenlei XU , Xiaolu WANG , Jun WANG
Abstract: The present disclosure relates to network switching methods and apparatuses. in one example method, a beam that currently provides a service for a terminal device is a first beam. The first beam is generated by a first network device. The first network device obtains user information of the terminal device, and obtains switching information based on the user information. After the first network device sends the switching information to the terminal device, the terminal device can perform beam switching based on the switching information.
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公开(公告)号：US20240031966A1
公开(公告)日：2024-01-25
申请号：US18480124
申请日：2023-10-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Yunfei QIAO , Jianwei ZHOU , Xiaolu WANG , Jun WANG
IPC: H04W56/00
CPC classification number: H04W56/0045 , H04W56/009
Abstract: A communication parameter indication method and apparatus is provided. The method includes: obtaining first information, where the first information requests a first parameter of a terminal device, and the first parameter includes at least one of: location information of the terminal device and a parameter related to a timing advance TA that is determined based on a round-trip transmission delay between a first reference point and the terminal device, or a round-trip transmission delay between a network device and the terminal device; sending second information based on the first information, where the second information indicates the first parameter; and obtaining third information indicating a timing offset, the timing offset is for determining a scheduling delay degree of sending information by the terminal device, and is related to at least one of a communication parameter corresponding to a cell in which the terminal device is located and the first parameter.
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公开(公告)号：US20230232391A1
公开(公告)日：2023-07-20
申请号：US18187223
申请日：2023-03-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Hejia LUO , Chenlei XU , Xiaolu WANG , Jun WANG
IPC: H04W72/044 , H04L5/00 , H04B7/06
CPC classification number: H04W72/046 , H04L5/0091 , H04B7/0695
Abstract: This application provides example beam management methods, apparatus, and systems. In one example method, a terminal device can receive indication information from a network device. The terminal device can perform beam switching according to an arrangement order of transmission configuration indicator (TCI) states (TCI-states) in a second TCI list when the indication information is first indication information. Alternatively, the terminal device can perform beam switching according to a first TCI-state in a first TCI list when the indication information is second indication information, wherein the first TCI list comprises a plurality of TCI-states comprising the first TCI-state, and in the first TCI list, beams corresponding to TCI-states after the first TCI-state are to sequentially provide a service for the terminal device.
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