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公开(公告)号:US20190334553A1
公开(公告)日:2019-10-31
申请号:US16505200
申请日:2019-07-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Guijie WANG , Gongzheng ZHANG , Yunfei QIAO , Jian WANG , Chaolong ZHANG , Rong LI
Abstract: Embodiments of the application provides a method for encoding. The method includes: receiving a to-be-encoded data block; encoding the data block at an aggregation level of 2L, where a formula used during the encoding is as follows: [ u . 2 L u . L ] [ G LN 0 G LN G LN ] = ⌊ C . 2 L C . L ⌋ ( I ) u . L = { u L u L - 1 … u 1 } , u . 2 L = { u 2 L u 2 L - 1 … u L + 1 } , c . L = { c L c L - 1 … c 1 } , c . 2 L = { c 2 L c 2 L - 1 … c L + 1 } , G LN = G N ⊗ log 2 ( L ) ( II ) L=2n, and n is a natural number greater than or equal to 0; and outputting an encoded data block.
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公开(公告)号:US20190312681A1
公开(公告)日:2019-10-10
申请号:US16423172
申请日:2019-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Hejia LUO , Gongzheng ZHANG , Rong LI , Huazi ZHANG , Yourui HUANGFU , Jian WANG , Ying CHEN , Jun WANG
Abstract: Embodiments provide a Polar code transmission method and apparatus. A bit sequence is encoded into a code sequence using Polar code by a network device. The bit sequence contains a control signaling and a Cyclic Redundancy Code (CRC) sequence. The code sequence is transformed into M copies such that an ith information copy of the M copies multiples by a first matrix of the power of (i−1). M is an integer and M>0. M copies of codeword was encoded by Polar code, the M copies implicitly conveys different time stamp information, which is suitable for the transmission of PBCH in 5G communication system, signaling overhead is also reduced.
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公开(公告)号:US20190238159A1
公开(公告)日:2019-08-01
申请号:US16383322
申请日:2019-04-12
Applicant: Huawei Technologies Co., Ltd.
Inventor: Vladimir GRITSENKO , Aleksei Eduardovich MAEVSKII , Hejia LUO , Jian WANG , Rong LI
Abstract: A method to explicitly indicate the version information while still supporting soft combining is disclosed. A polar code encoder maps q bits to q positions of q sub-channels, q is a positive integer; wherein the q bits are used to indicate a version of encoded codeword; map 1 to a special frozen bit corresponding to the q bits; map K−q information bits to K−q positions for the K−q information bits, K is an integer, K>q; and perform polar encoding over an input vector u0N−1, comprising the q bits, the special frozen bit and the K−q information bits, with the length of N, N is an integer, N>=K. With this method, there is no need to make blind detection to achieve the version information of transmitted payload, which reduces power consumption for a receiver.
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公开(公告)号:US20190200309A1
公开(公告)日:2019-06-27
申请号:US16301340
申请日:2016-05-13
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yongbo ZENG , Bin LIU , Yu CAI , Jian WANG , Guorong LI
CPC classification number: H04W56/001 , H04W4/46 , H04W56/00 , H04W56/0045 , H04W76/14 , H04W88/023 , H04W88/04
Abstract: A terminal synchronization method and a terminal relate to the communications field, where the terminal sends synchronization signals in a distributed manner by controlling a sequence for sending the synchronization signals, such that terminals in a vehicle to vehicle communications system can have uniform timing. The method includes obtaining, by a terminal, a configurable transmission period for sending a first synchronization signal, and sending, by the terminal, the first synchronization signal based on the configurable transmission period.
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公开(公告)号:US20190174463A1
公开(公告)日:2019-06-06
申请号:US16325180
申请日:2016-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Yongbo ZENG , Hongcheng ZHUANG , Da WANG , Jian WANG
Abstract: Embodiments of the present invention disclose a communication method and a communications apparatus. In the communication method, a network-side device determines a resource configuration policy. The network-side device determines an operation mode of a terminal based on the resource configuration policy; broadcasts information about a plurality of configured resource pools and the operation mode, so that the terminal performs sending based on the configured one or more resource pools; and determines, based on the operation mode, that the terminal sends information on one or more resource units of the plurality of resource pools. According to the communication method and the communications apparatus provided in the specific embodiments of the present invention, the one or more resource pools are configured for a plurality of carriers for inter-terminal communication, so that the terminal can send a message on the one or more resource pools of the plurality of carriers.
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公开(公告)号:US20190159262A1
公开(公告)日:2019-05-23
申请号:US16258097
申请日:2019-01-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Guijie WANG , Jian WANG , Meixin LIN
Abstract: This application provides a preamble sequence configuration method, user equipment, and an access network device. The method in embodiments of this application includes: determining, by an access network device, preamble sequence information, where the preamble sequence information includes a message indicating a quantity of preamble sequences; and sending, by the access network device, the preamble sequence information to user equipment, where the preamble sequence information is used by the user equipment for random access.
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27.
公开(公告)号:US20190149263A1
公开(公告)日:2019-05-16
申请号:US16305949
申请日:2016-05-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Chen DONG , Xiaodong SUN , Yanliang SUN , Jian WANG
Abstract: Embodiments of the present invention provide a method for determining a transmission rate supported by a data stream, user equipment, and a base station. The method includes: determining, by user equipment UE, a first index corresponding to an average transmission rate supported by a channel between the UE and the base station; determining, by the UE, a second index corresponding to a difference between an instantaneous transmission rate supported by a data stream on the channel and an average transmission rate supported by the data stream on the channel; sending, by the UE, the first index to the base station; and sending, by the UE, the second index to the base station. According to the embodiments of the present invention, the instantaneous transmission rate supported by the data stream on the channel can be relatively accurately fed back to the base station, thereby improving channel resource utilization.
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公开(公告)号:US20170325285A1
公开(公告)日:2017-11-09
申请号:US15526717
申请日:2014-11-13
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W88/023 , H04L1/1893 , H04L5/001 , H04L5/003 , H04L5/0094 , H04W28/08 , H04W72/0406
Abstract: A data transmission method, a device, and a system are disclosed and relate to the communications field, to resolve a problem that modulation and coding cannot be performed on data because no corresponding transport block size TBS exists when a quantity of physical resource blocks PRBs of a wireless communications system is greater than 110. A specific solution is: obtaining, by a first device, grouping information, where the grouping information is used to indicate information of grouping N PRBs into M PRB groups; performing modulation and coding by using a TBS that corresponds to each of the M PRB groups, to generate modulation symbols; and transmitting data to a second device by using a physical resource that corresponds to the N PRBs. The foregoing solution is used for data transmission in a wireless network.
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公开(公告)号:US20170325253A1
公开(公告)日:2017-11-09
申请号:US15524760
申请日:2014-11-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04W72/1252 , H04L5/0007 , H04L5/001 , H04L25/4902 , H04L27/04 , H04L27/06 , H04L27/08 , H04L27/2602 , H04W72/0446 , H04W74/0808
Abstract: A data transmission method and a device are disclosed and relate to the field of communications technologies, so that a channel resource preemption probability of a device can be effectively increased by reducing a CCA interval at which a CCA is performed on a channel resource. The method includes: determining, by a first device, a CCA start moment at which a clear channel assessment CCA is performed; determining, by the first device, a CCA interval, where the CCA interval is a time interval between two adjacent CCAs, and a time interval between any two adjacent CCAs is less than a preconfigured data frame period; performing, by the first device, a CCA process according to the CCA start moment and the CCA interval; and sending, by the first device, data at an end moment of the CCA process. The method and the device are used for data transmission.
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公开(公告)号:US20170265219A1
公开(公告)日:2017-09-14
申请号:US15329976
申请日:2014-08-01
Applicant: Huawei Technologies Co., Ltd.
Inventor: Jian WANG
IPC: H04W72/12
CPC classification number: H04W72/1289 , H04L5/0007 , H04L5/0044 , H04L5/0073 , H04W72/04 , H04W72/1263 , Y02D70/00
Abstract: Embodiments of the present invention provide a data transmission method and user equipment. The method includes: obtaining, by first user equipment, time resource grouping information, where the time resource grouping information includes physical resource numbers of physical resources in N time resource groups, and N is a positive integer; sending, by the first user equipment, an indication signal, where the indication signal indicates one or more physical resource numbers; determining, by the first user equipment according to the time resource grouping information and the one or more physical resource numbers indicated by the indication signal, time resources occupied by a data signal in the N time resource groups; and sending, by the first user equipment, the data signal by using the time resources occupied by the data signal in the N time resource groups. In the embodiments of the present invention, energy consumption of a receive end can be reduced.
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