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公开(公告)号：US20190386778A1
公开(公告)日：2019-12-19
申请号：US16558285
申请日：2019-09-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Rong LI , Huazi ZHANG , Hejia LUO , Gongzheng ZHANG
Abstract: Embodiments provide a polar code encoding and decoding method in a communications system. Under the method, a basic quantized sequence can be obtained. The basic quantized sequence includes a quantized value used to represent reliability corresponding to a polarized subchannel. A target quantized sequence based on the basic quantized sequence can also be obtained. A relative magnitude relationship between elements in the target quantized sequence is nested with a relative magnitude relationship between elements in the basic quantized sequence. K largest quantized values in the target quantized sequence can be determined based on a non-fixed bit length K and polarized subchannels corresponding to the K largest quantized values can be used as a non-fixed bit position set. Polar code encoding or decoding can be performed based on the non-fixed bit position set.
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公开(公告)号：US20190296857A1
公开(公告)日：2019-09-26
申请号：US16423178
申请日：2019-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Vladimir GRITSENKO , Aleksei Eduardovich MAEVSKII , Hejia LUO , Rong LI , Jun WANG
IPC: H04L1/00
Abstract: Method and apparatus for transmission and reception with polar codes are provided to support up to 16 permutations or transformation mappings. For example, 16 versions of copies able to be soft-combined for PBCH or any other data channel or control channel are suggested if the mother code length is 256 or 512 or 1024. With the new design, up to 16 different versions can be used to soft combined to improve the performance. Some sequences are provided as examples to support 16 different permutation patterns. The inverse of these sequences also have the feature to support 16 different permutation patterns.
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公开(公告)号：US20190199474A1
公开(公告)日：2019-06-27
申请号：US16291921
申请日：2019-03-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying CHEN , Rong LI , Jun WANG , Hejia LUO , Yunfei QIAO
IPC: H04L1/00
CPC classification number: H04L1/0057 , H03M13/13 , H04L1/00 , H04L1/0009
Abstract: A polar code coding method and apparatus are provided. The method includes: determining, based on a target code length corresponding to an information bit sequence, a first mother code length corresponding to the information bit sequence; and performing polar code coding on the information bit sequence based on the first mother code length and mapping relationship information, where the mapping relationship information includes a correspondence between a mother code length and at least one of the following: a transport block size, a construction work point, or a construction sequence. In the method provided in the embodiments of the present invention, polar code coding may be directly performed on the information bit sequence based on at least one of a first transport block size, a first construction work point, or a first construction sequence, so as to reduce coding overheads in a polar code coding process.
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公开(公告)号：US20190069282A1
公开(公告)日：2019-02-28
申请号：US16170730
申请日：2018-10-25
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W72/04
Abstract: Embodiments of this application provide a time-frequency resource allocation method and apparatus. The method includes: determining, by a network device, N terminal device types based on a current movement speed of a terminal device within a coverage area, where the N terminal device types are in a one-to-one correspondence with N demodulation reference signals (DMRSs) with different time domain densities; classifying, by the network device, available time-frequency resources into N time-frequency resource groups based on the N terminal device types, where a first DMRS in the N DMRSs is configured for a first time-frequency resource group in the N time-frequency resource groups; and sending, by the network device, resource indication information to the terminal device based on the N time-frequency resource groups.
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公开(公告)号：US20240306212A1
公开(公告)日：2024-09-12
申请号：US18660964
申请日：2024-05-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Jun WANG , Rong LI
IPC: H04W74/0833 , H04W72/1268 , H04W74/08
CPC classification number: H04W74/0833 , H04W72/1268 , H04W74/0891
Abstract: A communication method and a communication apparatus. A terminal device obtains a first SSB. The terminal device sends a random access preamble corresponding to the first SSB. The random access preamble is carried at a first time domain position. The first time domain position is associated with a timing offset value. The timing offset value is determined based on a round-trip delay between the network device and a first position in an area covered by the network device.
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Patent Agency Ranking
公开(公告)号：US20240259083A1
公开(公告)日：2024-08-01
申请号：US18619573
申请日：2024-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04B7/10 , H04W72/044 , H04W72/231 , H04W72/232
CPC classification number: H04B7/10 , H04W72/046 , H04W72/231 , H04W72/232
Abstract: Communication methods and apparatus are provided. A communication method includes: A second communication apparatus determines second indication information, and sends the second indication information, wherein the second indication information indicates a polarization manner of a neighboring cell of a cell in which a first communication apparatus in an inactive state is located, and the polarization manner of the neighboring cell comprises one or more of left hand circular polarization, right hand circular polarization, linear polarization, or cross polarization multiplexing.
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公开(公告)号：US20240236899A1
公开(公告)日：2024-07-11
申请号：US18430323
申请日：2024-02-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenlei XU , Jianwei ZHOU , Zhenjun JIANG , Hejia LUO
CPC classification number: H04W56/005 , H04W56/0035 , H04W56/009 , H04W84/06
Abstract: This application provides a timing advance update method, a terminal, and a base station. One example method includes receiving, a TA value; obtaining, a common TA change rate, and compensating for the TA value based on the common TA change rate; and sending an uplink signal based on a TA value obtained after compensation is performed.
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公开(公告)号：US20230361922A1
公开(公告)日：2023-11-09
申请号：US18352864
申请日：2023-07-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Yunfei QIAO , Yinggang DU , Hejia LUO , Jun WANG
IPC: H04L1/08 , H04L1/1812
CPC classification number: H04L1/08 , H04L1/1812
Abstract: The present disclosure relates to data transmission methods and apparatuses. In one example method, a receiving end obtains a transmission resource, and feeds back first information to a transmitting end based on the transmission resource. The first information is determined based on a channel state of a first channel, and the first information indicates whether retransmission is required or indicates whether a transmission mode is to be adjusted.
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公开(公告)号：US20230345338A1
公开(公告)日：2023-10-26
申请号：US18343486
申请日：2023-06-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Xiaolu WANG , Rong LI , Jianglei MA , Jun WANG
CPC classification number: H04W36/304 , H04W36/0058 , H04W36/083 , H04W48/20
Abstract: This application relates to a cell selection method and apparatus. In an example method, a terminal device performs measurement based on measurement configuration information of N cells and determines M candidate cells based on a measurement result. N is an integer greater than 0, and M is an integer greater than 0 and less than N. The example method further includes the terminal device selecting a target cell from the M candidate cells based on first information. The first information includes coverage information of at least one candidate cell in the M candidate cells.
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公开(公告)号：US20230283362A1
公开(公告)日：2023-09-07
申请号：US18182075
申请日：2023-03-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04B7/2041 , H04B7/18547 , H04B7/18513
Abstract: Example beam hopping methods and apparatus are described. In one example method, a first satellite sends a communication signal to a first area by using a first beam, where the communication signal is used by the first satellite to communicate with a terminal device in the first area, and the first area belongs to an area covered by the first satellite. The first satellite sends a positioning signal to a second area by using a second beam, where the positioning signal is used by a terminal device in the second area for positioning measurement.
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