公开(公告)号：US10826532B2

公开(公告)日：2020-11-03

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

IPC: H03M13/00 ,  H03M13/13 ,  H04L1/00 ,  H03M13/37 ,  H04L1/18

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.

公开(公告)号：US10771216B2

公开(公告)日：2020-09-08

申请号：US16335684

申请日：2016-09-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaodong Sun ,  Jian Wang ,  Richard Stirling-Gallacher ,  Chen Dong

IPC: H04W4/00 ,  H04L5/00 ,  H04L5/14 ,  H04W52/24 ,  H04W52/36 ,  H04W52/42

Abstract: A sounding reference signal sending method and user equipment are disclosed. The method includes the following steps: receiving a configuration parameter of a sounding reference signal SRS, and determining, based on the configuration parameter, a time-frequency resource occupied by the SRS, where the configuration parameter includes a trigger type, a period parameter, and a time-frequency resource location identifier; obtaining a power control parameter of the SRS, and calculating, based on the power control parameter and a preset calculation formula, a transmit power for sending the SRS; and sending the SRS on the time-frequency resource at the transmit power. The trigger type includes beamforming and non-beamforming. The period parameter is an identifier used to indicate that the SRS is sent periodically or aperiodically.

公开(公告)号：US10764811B2

公开(公告)日：2020-09-01

申请号：US16304825

申请日：2016-05-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guorong Li ,  Jian Wang ,  Da Wang ,  Nathan Edward Tenny

IPC: H04W40/22 ,  H04W76/10

Abstract: A method for handover to a relay node, a related device, and a system, where the method includes sending, by a base station of a target cell in an initial random access procedure initiated by a terminal device for the target cell, indication information to the terminal device using a random access message to instruct the terminal device to report information about a candidate relay device corresponding to the terminal device, receiving the information about the candidate relay device from the terminal device determining, in the candidate relay device according to the information about the candidate relay device, a target relay node used for relay communication between the terminal device and the base station, and handing over the terminal device to the target relay node.

公开(公告)号：US20200229043A1

公开(公告)日：2020-07-16

申请号：US16648509

申请日：2018-05-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chuting Yao ,  Haibo Xu ,  Jian Wang

IPC: H04W36/00 ,  H04W36/08 ,  H04W68/00

Abstract: A communication method includes: sending, by a first device, a handover request message to a second device, and receiving a handover acknowledgement message returned by the second device, where the handover acknowledgement message carries common system information of the second device; sending, by the first device, a handover command to a terminal, where the handover command includes the common system information of the second device; sending, by the first device, a second message to the terminal based on a first message, so that the terminal obtains changed communications system information of the second device based on the second message, where the first message is sent by the second device, and the first message is used to indicate a change occurring in the common system information of the second device.

公开(公告)号：US20200220679A1

公开(公告)日：2020-07-09

申请号：US16638002

申请日：2017-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yun Liu ,  Jian Wang ,  Da Wang ,  Yifan Xue

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04

Abstract: An uplink signal transmission method includes: receiving, by a terminal device, first information that is sent by a network device and that is used to instruct the terminal device to send an SRS on at least two symbols in a first slot, and second information that is sent by the network device and that is used to instruct the terminal device not to send the SRS on M symbols in the at least two symbols, where M is an integer greater than 0; and sending, by the terminal device based on the received first information and the received second information, the SRS on a symbol that is in the at least two symbols and that is different from the M symbols.

公开(公告)号：US10681692B2

公开(公告)日：2020-06-09

申请号：US16301322

申请日：2016-05-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaodong Sun ,  Jian Wang ,  Da Wang ,  Yanliang Sun

IPC: H04W72/04 ,  H04W84/04

Abstract: A transmission resource mapping method and a device relating to the field of mobile communications technologies, where resource mapping is performed using a resource element block, a length of the resource element block in time domain is less than a length of a physical resource block in the time domain. Therefore, a mapping granularity can be reduced during resource mapping such that latency in a transmission process can be reduced.

公开(公告)号：US10659194B2

公开(公告)日：2020-05-19

申请号：US16145850

申请日：2018-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Wang ,  Gongzheng Zhang ,  Huazi Zhang ,  Chen Xu ,  Lingchen Huang ,  Shengchen Dai ,  Hejia Luo ,  Yunfei Qiao ,  Rong Li ,  Jian Wang ,  Ying Chen ,  Nikita Polianskii ,  Mikhail Kamenev ,  Zukang Shen ,  Yourui HuangFu ,  Yinggang Du

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/09 ,  H03M13/29 ,  H03M13/00

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

公开(公告)号：US10574401B2

公开(公告)日：2020-02-25

申请号：US16298901

申请日：2019-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rong Li ,  Guijie Wang ,  Gongzheng Zhang ,  Jian Wang ,  Jun Wang

IPC: H04L1/18 ,  H03M13/13 ,  H04L1/00

Abstract: Embodiments of this application provide a polar code retransmission method and apparatus, to reduce retransmission complexity and improve transmission performance. The method includes: determining a first polar channel sequence including N polar channels and reliability of each of the N polar channels; determining, based on a coding parameter for an mth data transmission, a quantity Km of information bits that need to be transmitted during the mth data transmission, where the coding parameter includes at least one of the quantity of information bits and a code rate; determining Km polar channels with highest reliability in the first polar channel sequence; determining Km information bits based on locations, of information bits that need to be transmitted during first m−1 data transmissions, in the first polar channel sequence; and mapping the Km information bits to the Km polar channels for transmission.

公开(公告)号：US20200029353A1

公开(公告)日：2020-01-23

申请号：US16338112

申请日：2016-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Xu ,  Yiru Kuang ,  Jian Wang ,  Da Wang

IPC: H04W72/12 ,  H04W52/02

Abstract: A resource request method and system, and a device are provided, and relate to the field of communications technologies. The method may include: triggering, by remote UE, a buffer status report BSR, and sending the BSR to relay UE, where the BSR is used to provide a base station with a size of available to-be-transmitted data in a buffer of the remote UE.

公开(公告)号：US10511329B2

公开(公告)日：2019-12-17

申请号：US16236002

申请日：2018-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yourui HuangFu ,  Jian Wang ,  Rong Li ,  Yunfei Qiao ,  Jun Wang

IPC: H03M13/13 ,  H04L1/00

Abstract: This application relates to the field of communications technologies, and discloses example polar coding methods and apparatus, so as to improve accuracy of a reliability order of polarized channels. One example method includes determining a sequence used to code to-be-coded bits, and performing polar coding on the to-be-coded bits by using the sequence to obtain coded bits, where the sequence is used to represent a reliability order of N polarized channels, where N is a mother code length of a polar code, and wherein N is a positive integer power of 2.