公开(公告)号：US20220022217A1

公开(公告)日：2022-01-20

申请号：US17489317

申请日：2021-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenping BI ,  Zheng YU ,  Xiang MI ,  Yubo YANG ,  Xingqing CHENG

IPC: H04W72/12 ,  H04L1/00 ,  H04W24/10

Abstract: Embodiments of this application provide a communication method and device. The method includes: A first device determines first control information, where the first control information includes first indication information and second indication information, where the first indication information is used to indicate a state of preconfigured-resource transmission, and the state includes successful transmission, unsuccessful transmission, scheduling retransmission, or preconfigured-resource retransmission; and the second indication information is used to indicate whether the first device transmits first information, and the first information includes higher layer data and/or preconfigured uplink resource reconfiguration information. The first device sends the first control information to a second device. According to the method and device provided in the embodiments of this application, a network coverage capability can be improved, and the method and device may be applied to the internet of things, for example, MTC, IoT, LTE-M, or M2M.

公开(公告)号：US20210377954A1

公开(公告)日：2021-12-02

申请号：US17401560

申请日：2021-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang MI ,  Zhihu LUO ,  Xiaolei TIE ,  Jun LI ,  Zhe JIN

IPC: H04W72/04 ,  H04L1/18

Abstract: An information sending method and an apparatus are provided. In the method, after sending a first message including uplink data to a network device, a terminal device receives first DCI from the network device, where the first DCI may include first indication information, and the first indication information is used to indicate that the network device has successfully demodulated the first message or used to indicate the terminal device to flush a HARQ buffer corresponding to the first message; and the terminal device may obtain the first indication information from the first DCI, and after obtaining the first indication information, the terminal device determines not to monitor a PDCCH search space within first duration after the first DCI. After sending the uplink data and receiving the first indication information from the network device, the terminal device may not monitor the PDCCH search space within specific duration.

公开(公告)号：US20210359822A1

公开(公告)日：2021-11-18

申请号：US17389979

申请日：2021-07-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuwan SU ,  Xiang MI ,  Xiaolei TIE ,  Zhe JIN

IPC: H04L5/00

Abstract: Embodiments of this application provide a method for receiving and sending a reference signal, an apparatus, and a system, so that a network device can correctly demodulate uplink data of different terminal devices of a same cell. This solution is applicable to a wireless communications system including a first cell. The first cell includes a plurality of terminal devices that can transmit uplink data on a same time-frequency resource. A first terminal device in the plurality of terminal devices determines an index of a first sequence based on a first parameter value, and generates a first reference signal based on the first sequence indicated by the index of the first sequence. Then, the first terminal device sends the first reference signal to the network device. The first parameter value is different from a parameter value corresponding to another terminal device in the plurality of terminal devices.

公开(公告)号：US20210218495A1

公开(公告)日：2021-07-15

申请号：US17214516

申请日：2021-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenping BI ,  Yue ZHAO ,  Hong WANG ,  Xinqian XIE ,  Zheng YU ,  Xingqing CHENG ,  Xiang MI

IPC: H04L1/00 ,  H04L1/18 ,  H04W72/04 ,  H04W76/11

Abstract: Embodiments of this application provide a signal transmission method and a communications apparatus. The method includes: a terminal device receives information from a network device, wherein the information is used to indicate the terminal device to send a signal in a fallback transmission mode; the terminal device determines that transmission of the signal is failed; and then sends the signal to the network device in the fallback transmission mode.

公开(公告)号：US20210195518A1

公开(公告)日：2021-06-24

申请号：US17186790

申请日：2021-02-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuwan SU ,  Xiaolei TIE ,  Zhihu LUO ,  Xiang MI ,  Zhe JIN

IPC: H04W52/02 ,  H04W72/04 ,  H04L5/00 ,  H04W76/28 ,  H04W72/12

Abstract: Example reference signal sending methods and apparatus are described. In one example method, a terminal device detects whether a paging scheduling message exists in a PDCCH search space whose starting subframe is a subframe corresponding to a paging occasion (PO), and/or detects whether a wake-up signal (WUS) exists before a PO. A network device determines a time domain resource in first duration based on a quantity of paging occasions in a discontinuous reception period, where the time domain resource is a time domain resource in a time-frequency resource used to transmit a reference signal. The network device sends the reference signal to a terminal device on the time domain resource.