公开(公告)号：US11356221B2

公开(公告)日：2022-06-07

申请号：US16786501

申请日：2020-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Li ,  Zhe Chen ,  Xiaolei Tie ,  Zhe Jin

IPC: H04L5/00 ,  H04J11/00 ,  H04L5/14 ,  H04W48/10

Abstract: A data transmission method, device, and system are provided. The method includes: sending, by a base station, an NPSS to UE by using a first subframe in a first radio frame and a first subframe in a second radio frame, where the first radio frame and the second radio frame are consecutive, and both the first radio frame and the second radio frame use a TDD uplink-downlink subframe configuration; sending, by the base station, an NPBCH to the UE by using a second subframe in the first radio frame and a second subframe in the second radio frame; sending, by the base station, an NSSS to the UE by using a third subframe in the first radio frame; and sending, by the base station, a SIB1-NB to the UE by using a third subframe in the second radio frame.

公开(公告)号：US11343856B2

公开(公告)日：2022-05-24

申请号：US16875203

申请日：2020-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhihu Luo ,  Zhe Jin ,  Weiliang Zhang

IPC: H04W74/08 ,  H04B1/713 ,  H04W72/04 ,  H04W74/00

Abstract: A communication method includes: determining a preamble including M symbol groups; and sending the M symbol groups in K uplink subframe sets, where any uplink subframe set in the K uplink subframe sets includes one uplink subframe or more than one consecutive uplink subframes, any two uplink subframe sets in the K uplink subframe sets are spaced by at least one downlink subframe, and in each of the K uplink subframe sets at least one symbol group can be sent; N times of frequency hopping exist in the M symbol groups, each of the N times of frequency hopping is frequency hopping between adjacent symbol groups in the M symbol groups, and frequency hopping directions of at least two of the N times of frequency hopping are opposite, N is less than M, K is less than or equal to M, and K, N and M are positive integers.

公开(公告)号：US11330543B2

公开(公告)日：2022-05-10

申请号：US16785093

申请日：2020-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhe Chen ,  Zhe Jin

IPC: H04W56/00 ,  H04W4/80 ,  H04J13/00 ,  H04L5/00 ,  H04W72/00 ,  H04W72/04

Abstract: This application provides a signal sending method, a signal receiving method, and an apparatus. The method includes: receiving, by a terminal device on a first carrier, a narrowband primary synchronization signal (NPSS) sent by a network device according to a first period and a narrowband secondary synchronization signal (NSSS) sent by the network device according to a second period; receiving, by the terminal device on a second carrier, a narrowband physical broadcast channel (NPBCH) sent by the network device according to a third period and a system information block 1-narrowband (SIB1-NB) sent by the network device according to a fourth period; and completing, by the terminal device, downlink synchronization and obtaining system information based on the NPSS, the NSSS, the NPBCH, and the SIB1-NB.

公开(公告)号：US11122568B2

公开(公告)日：2021-09-14

申请号：US16522181

申请日：2019-07-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhe Chen ,  Zhe Jin ,  Chenwan Li ,  Weiliang Zhang

IPC: H04W72/04 ,  H04W64/00 ,  H04L29/08

Abstract: A communication method includes: determining, by a network side device, at least two pieces of target sub-configuration information according to a co-location rule, where at least two target signals corresponding to the at least two pieces of target sub-configuration information are quasi co-located; and sending, by the network side device, the at least two pieces of target sub-configuration information to the terminal device according to the co-location rule.

公开(公告)号：US11101916B2

公开(公告)日：2021-08-24

申请号：US16507866

申请日：2019-07-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tong Ji ,  Zhe Jin ,  Zhihu Luo ,  Weiliang Zhang

IPC: H04W4/00 ,  H04L1/00 ,  H04L5/00 ,  H04W88/08

Abstract: A message transmission method and device relating to the field of communications technologies is disclosed, so as to improve an anti-interference capability in message transmission. The method includes: generating, by a base station, a scrambling code according to a first time parameter; then scrambling a system message according to the scrambling code; and finally sending the scrambled system message to a terminal on a physical broadcast channel. In this technical solution, because the first time parameter has different values at at least two different moments, scrambling codes determined at the at least two corresponding different moments are different. Therefore, a possibility at which the base station uses a same scrambling code to scramble a same system message repeatedly in a time period is reduced, so that an anti-interference capability in system message transmission is improved.

公开(公告)号：US20210168847A1

公开(公告)日：2021-06-03

申请号：US17171537

申请日：2021-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhihu Luo ,  Jun Li ,  Xiaolei Tie ,  Zhe Jin

IPC: H04W72/12 ,  H04L1/18

Abstract: This application discloses a data transmission method which includes: receiving DCI, wherein two TBs or one TB can be scheduled in the DCI, the DCI comprises a third bit, the third bit indicates that a quantity of the TB(s) scheduled in the DCI is 1 or 2, and the DCI further comprises a first bit and/or a second bit; and when the quantity of the TB(s) is 1, performing, based on the third bit, and the first bit or second bit, uplink or downlink data transmission, wherein the first or second bit indicates a NDI associated with the TB scheduled in the DCI; or when the quantity of the TB(s) is 2, performing, based on the third, first bit, and second bit, uplink or downlink data transmission, wherein the first and the second bit respectively indicate two NDIs associated with the two TBs.

公开(公告)号：US10993234B2

公开(公告)日：2021-04-27

申请号：US16586771

申请日：2019-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhe Jin ,  Qian Wu

IPC: H04B1/04 ,  H04W72/04 ,  H04W48/10 ,  H04L27/26 ,  H04J11/00

Abstract: A method for determining a carrier center frequency in a wireless communications system is provided. The method includes: determining, a carrier center frequency used by a base station and UE to communicate, according to a frequency band starting frequency, an absolute radio frequency channel number, a frequency band offset, and a relative radio frequency channel number. According to this application, a time for searching for a cell by a terminal can be reduced, power consumption of the terminal can be reduced, and a battery life can be extended.

公开(公告)号：US20200153582A1

公开(公告)日：2020-05-14

申请号：US16739451

申请日：2020-01-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tong Ji ,  Zhe Jin ,  Weiliang Zhang

IPC: H04L5/00

Abstract: An information sending and receiving method and a device, the sending method including generating a first signal, and sending the first signal on a first resource. The first resource includes a first part of resource elements (REs), and the first part of the REs comprises at least one of a first RE element or a second RE element. The first RE element comprises all REs corresponding to an orthogonal frequency division multiplexing (OFDM) symbol 0, symbol 1, and symbol 2 in each of subframes 0, 5, and 9 of each radio frame on a first carrier, the second RE element comprises an RE0, RE3, RE6, and RE9 in each of an OFDM symbol 4, 7, 8, and 11 in subframe 0 of each radio frame on the first carrier, and the first carrier is a carrier in a narrow band internet of things (NB-IoT) system.

公开(公告)号：US10555128B2

公开(公告)日：2020-02-04

申请号：US16369386

申请日：2019-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yinghui Yu ,  Chenwan Li ,  Zhe Jin ,  Yiling Wu ,  Zhe Chen ,  Weiliang Zhang ,  Zhihu Luo

IPC: H04W4/029 ,  H04W4/06

Abstract: Embodiments of this application provide a method for transmitting positioning assistance data and a device. The method includes: receiving, by a network device, at least one positioning assistance data message sent by a positioning server, where the at least one positioning assistance data message is used to carry positioning assistance data; and broadcasting, by the network device, a system message to a terminal device, where the system message is used by the terminal device to obtain the positioning assistance data. According to the embodiments of this application, the network device broadcasts the system message to broadcast the positioning assistance data. In this way, a problem of low efficiency of transmitting existing centralized positioning assistance data can be resolved, and a problem in the prior art that a positioning server needs to perform signaling communication with each terminal device in a unicast transmission scenario can be avoided, thereby reducing signaling overheads.

公开(公告)号：US10448315B2

公开(公告)日：2019-10-15

申请号：US15719700

申请日：2017-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhe Jin ,  Guangwei Yu ,  Zhihu Luo

IPC: H04W48/10 ,  H04W48/08 ,  H04W36/00 ,  H04W48/16 ,  H04W48/12

Abstract: Embodiments of the present invention provide a method for indicating a physical cell identifier and an apparatus, and relate to the field of communications technologies. The method includes determining, by the terminal device according to a first broadcast message sent by the base station, a PCI of a target cell in which the terminal device is located and determining a first scrambling code according to the PCI of the target cell. The method also includes determining an extended PCI of the target cell according to a second broadcast message sent by the base station and the first scrambling code.