公开(公告)号：US20210408909A1

公开(公告)日：2021-12-30

申请号：US17473511

申请日：2021-09-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongbing GAO ,  Jun WANG ,  Lei SHI

IPC: H02M3/158

Abstract: This application relates to the field of circuit technologies, and provides a step-up circuit and a step-up circuit control method. The step-up circuit includes a power supply, an inductor, N switch components, N-1 flying capacitors, N flyback diodes, a pre-charge unit, and an output unit. The N switch components are connected in series, a first switch component of the N switch components is connected to a first terminal of the power supply through the inductor, and an Nth switch component is connected to a second terminal of the power supply. At least two switch components of the N switch components have withstand voltage specifications different from each other. Values of voltages withstood by switch components with different withstand voltage specifications during normal operation are also different from each other. N is a positive integer.

公开(公告)号：US20210314830A1

公开(公告)日：2021-10-07

申请号：US17351400

申请日：2021-06-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junren CHANG ,  Jun WANG ,  Xiao XIAO

IPC: H04W36/00

Abstract: A first base station determines that a first terminal in a first cell is handed over to a second cell, where the first terminal belongs to a group of terminals, and the first cell belongs to the first base station. The first base station sends first information to the first terminal, where the first information indicates a first sidelink resource used by the group of terminals to perform communication, and the first sidelink resource is valid in both the first cell and the second cell. The foregoing technical solution resolves a problem that is of communications resource configuration of a group of terminals and that exists when the group of terminals perform handover.

公开(公告)号：US20210306913A1

公开(公告)日：2021-09-30

申请号：US17345883

申请日：2021-06-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiangyu LI ,  Jing LIU ,  Xiao XIAO ,  Jun WANG ,  Mingzeng DAI

IPC: H04W28/24 ,  H04W76/36 ,  H04W8/28 ,  H04W76/11 ,  H04W4/40

Abstract: One example method includes sending, by a first terminal device, a first request message to a network device, where the first request message is used to request to establish a sidelink radio bearer (SL RB) between the first terminal device and a second terminal device, where the first request message includes at least one of a parameter index or at least one parameter. The first terminal device can then receive a first response message from the network device, where the first response message includes one or more of admission control indication information, the at least one parameter, the parameter index, or first SL RB radio resource configuration information, where the admission control indication information indicates that the network device allows establishment of the SL RB, and where the first SL RB radio resource configuration information includes at least one of an SL RB identifier or protocol layer configuration information.

公开(公告)号：US20210219200A1

公开(公告)日：2021-07-15

申请号：US17214794

申请日：2021-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenjie PENG ,  Jun WANG ,  Mingzeng DAI

IPC: H04W36/08 ,  H04W4/40 ,  H04W36/24

Abstract: A first terminal device obtains a first parameter related to a first air interface, and then determines, based on the first parameter, that first frequency information of a second air interface has a highest priority, where the first air interface is a radio interface between the first terminal device and a second terminal device, and the second air interface is a radio interface between the first terminal device and a network device.

公开(公告)号：US20210176007A1

公开(公告)日：2021-06-10

申请号：US17132566

申请日：2020-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rong LI ,  Gongzheng ZHANG ,  Ying CHEN ,  Xiaocheng LIU ,  Jun WANG

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/13

Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.

公开(公告)号：US20200374962A1

公开(公告)日：2020-11-26

申请号：US16991152

申请日：2020-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yizhen WU ,  Yuanping ZHU ,  Yada HUANG ,  Mingzeng DAI ,  Jun WANG

IPC: H04W76/23 ,  H04L12/741 ,  H04W28/02

Abstract: A method includes: a first terminal device that transmits a first data packet to a second terminal device through a first interface, where the first interface is an interface for direct communication between the first terminal device and the second terminal device; and the first terminal device transmits a second data packet to the second terminal device through a second interface.

公开(公告)号：US20200343916A1

公开(公告)日：2020-10-29

申请号：US16923898

申请日：2020-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiajie TONG ,  Huazi ZHANG ,  Yunfei QIAO ,  Rong LI ,  Xiaocheng LIU ,  Jun WANG

IPC: H03M13/45 ,  H03M13/09

Abstract: A decoding method and apparatus are provided, to improve a degree of parallelism in decoded bit decisions and reduce a decoding delay. The method includes: performing a hard decision on each LLR in an inputted LLR vector having a length of M to obtain a first vector, where M≤N and N is a length of to-be-decoded information; sequentially performing negation of some elements of the first vector to obtain L vectors; and then determining decoding results of the LLR vector based on the L vectors.

公开(公告)号：US20200169352A1

公开(公告)日：2020-05-28

申请号：US16778812

申请日：2020-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue ZHOU ,  Jun WANG ,  Rong LI ,  Ying CHEN ,  Jian WANG ,  Huazi ZHANG

IPC: H04L1/00

Abstract: This application relates to the field of communications technologies, and discloses a polar code encoding method and apparatus, to improve accuracy of reliability computation and sorting of polar channels. The method is: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polar channels, and the sequence numbers of the N polar channels are arranged in the first sequence based on corresponding reliabilities of the N polar channels, where K is a positive integer, N is a mother code length of a polar code, N is a positive integer that is a power of 2, and K≤N; selecting sequence numbers of K polar channels from the first sequence in descending order of the reliabilities; and placing the to-be-encoded bits based on the selected sequence numbers of the K polar channels, and performing polar code encoding on the to-be-encoded bits.

公开(公告)号：US20200067638A1

公开(公告)日：2020-02-27

申请号：US16672309

申请日：2019-11-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue ZHOU ,  Rong LI ,  Yinggang DU ,  Huazi ZHANG ,  Pengcheng QIU ,  Yunfei QIAO ,  Jun WANG

IPC: H04L1/00

Abstract: Embodiments of the present invention disclose an encoding method. The method includes: obtaining a corresponding index value from an index module based on values in Z to-be-encoded bits that are obtained and a state space value in a state space module, performing an operation based on the index value and the state space value to obtain a new state space value, encoding the Z to-be-encoded bits that are obtained, and obtaining a value from the new state space value and assigning the value to an auxiliary bit.

公开(公告)号：US20200007164A1

公开(公告)日：2020-01-02

申请号：US16569745

申请日：2019-09-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue ZHOU ,  Huazi ZHANG ,  Rong LI ,  Hejia LUO ,  Yunfei QIAO ,  Jun WANG

IPC: H03M13/13 ,  H04L1/00 ,  H03M13/09

Abstract: A coding method, a decoding method, an apparatus, and a device are provided. The method includes: coding, by a sending device, an information bit sequence to obtain a coded bit sequence, where the coded bit sequence includes an information bit, a frozen bit, a CRC check bit, and a frozen check bit; and a value of the frozen check bit and a value of the CRC check bit are obtained by using a same cyclic shift register; performing, by the sending device, polar coding and rate matching on the coded bit sequence to obtain a to-be-sent rate-matched sequence; and sending, by the sending device, the rate-matched sequence. According to the method, time and space for coding calculation and decoding calculation can be effectively reduced, and calculation complexity is reduced.