公开(公告)号：US11611994B2

公开(公告)日：2023-03-21

申请号：US16764771

申请日：2018-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibo Xu ,  Zhenzhen Cao ,  Bingzhao Li ,  Chuting Yao ,  Xiangdong Zhang ,  Jian Wang

IPC: H04W74/08 ,  H04W72/04

Abstract: A method and a device are provided. The method includes: selecting, by user equipment, a random access preamble from a random access preamble set, and selecting a random access channel resource from a random access channel resource set; sending, by the user equipment, the random access preamble by using the random access channel resource; and receiving, by the user equipment, a random access response message on a first downlink bandwidth part; wherein at least one of the random access preamble set or the random access channel resource set corresponds to the first downlink bandwidth part, and the random access channel resource includes at least one of a random access channel time domain resource or a random access channel frequency domain resource.

公开(公告)号：US11528750B2

公开(公告)日：2022-12-13

申请号：US16763943

申请日：2018-10-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Xu ,  Yiru Kuang ,  Zhenzhen Cao ,  Jian Wang ,  Xuelong Wang

IPC: H04W16/32 ,  H04W74/08 ,  H04W76/27 ,  H04L5/00 ,  H04W72/04 ,  H04W74/02

Abstract: A random access method including receiving, by a user equipment, a radio resource control (RRC) connection reconfiguration message from a first network device, where the RRC connection reconfiguration message is included in a first message sent by a second network device to the first network device, and where the RRC connection reconfiguration message indicates a primary serving cell of the second network device for the user equipment, and further indicates an active bandwidth part (BWP) in the primary serving cell, and the method further including initiating, by the user equipment, a random access procedure on the active BWP.

公开(公告)号：US20220369346A1

公开(公告)日：2022-11-17

申请号：US17755428

申请日：2020-11-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Xu ,  Jun Wang ,  Dongdong Wei ,  Jian Wang

IPC: H04W72/12

Abstract: When a first sidelink channel state information CSI report is triggered, a first terminal obtains a first sidelink resource configured by a base station for the first terminal, where the first sidelink resource can be used to transmit the sidelink CSI report. The first terminal sends the first sidelink CSI report to a second terminal on the first sidelink resource, where the first sidelink CSI report is used to feed back CSI of a sidelink between the first terminal and the second terminal.

公开(公告)号：US20220312241A1

公开(公告)日：2022-09-29

申请号：US17635654

申请日：2020-08-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Xu ,  Xiao Xiao ,  Dongdong Wei ,  Junren Chang ,  Jian Wang

IPC: H04W24/08 ,  H04W72/04 ,  H04W76/28 ,  H04W72/14 ,  H04L1/18 ,  H04L1/08 ,  H04L5/00 ,  H04L27/26

Abstract: This application relates to a discontinuous reception method. In the first time unit, for example, the first symbol, after a hybrid automatic repeat request HARQ feedback occasion of a sidelink HARQ process, a first terminal may start a drx-HARQ-RTT-TimerSL and start a drx-RetransmissionTimerSL when the drx-HARQ-RTT-TimerSL expires. During running of the drx-RetransmissionTimerSL, the first terminal monitors a physical downlink control channel. In this way, sidelink retransmission efficiency can be improved, an increase of a sidelink retransmission delay can be avoided, and sidelink-based applications, such as unmanned driving, automatic driving, assisted driving, intelligent driving, networked driving, intelligent networked driving, and car sharing in the field of artificial intelligence can be better supported.

公开(公告)号：US20220217601A1

公开(公告)日：2022-07-07

申请号：US17655643

申请日：2022-03-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuting Yao ,  Haibo Xu ,  Bingzhao Li ,  Zhenzhen Cao ,  Jian Wang

IPC: H04W36/08 ,  H04W76/19 ,  H04W80/02 ,  H04W80/08 ,  H04W12/0431

Abstract: This application provides a data processing method and apparatus, and a computer storage medium. When a PDCP entity over a UM DRB is re-established, or when a cell handover occurs and the PDCP entity over a UM DRB uses a key used before the handover, the PDCP entity determines a first SDU, where the first SDU is an SDU that is associated with a sequence number by the PDCP entity but whose corresponding data has not been transmitted through an air interface; and delivers a PDU corresponding to the first SDU to an RLC entity. Data corresponding to the first SDU is redelivered, to avoid a data packet loss caused by preprocessing of the PDCP entity.

公开(公告)号：US20220140861A1

公开(公告)日：2022-05-05

申请号：US17431481

申请日：2019-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Liu ,  Haibo Xu ,  Pengfei Xia ,  Nathan Edward Tenny

IPC: H04B1/74 ,  H04W72/04

Abstract: A data packet, that is to be transmitted in a dual connectivity (DC) or carrier aggregation (CA) based communications system, may include an indication to indicate whether the data packet is configured to be transmitted in a first frequency of a first carrier or a second frequency of a second carrier, and be transmitted, by a communication device, in the first frequency or the second frequency based on the indication. A data packet in the communications system may also be transmitted first in a first frequency higher than a second frequency, and then be retransmitted in the second frequency upon transmission failure of the data packet in the first frequency.

公开(公告)号：US20220110104A1

公开(公告)日：2022-04-07

申请号：US17422326

申请日：2020-01-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaocui Li ,  Haibo Xu ,  Yifan Xue

IPC: H04W72/04 ,  H04L1/18

Abstract: A method for determining a feedback resource in a sidelink includes a first terminal sending SCI to a second terminal, where the SCI includes indication information. The indication information is used to indicate a first resource or a first resource window to be occupied for sending hybrid automatic repeat request HARQ feedback information by the second terminal, and the first resource window includes a plurality of candidate first resources. The method further includes the first terminal receiving, on the first resource, the HARQ feedback information sent by the second terminal, or monitors, in the first resource window, the HARQ feedback information sent by the second terminal.

公开(公告)号：US11297493B2

公开(公告)日：2022-04-05

申请号：US16633108

申请日：2017-08-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuting Yao ,  Haibo Xu ,  Jian Wang ,  Aimin Justin Sang

IPC: H04W12/03 ,  H04W76/27 ,  H04W36/00 ,  H04W36/08

Abstract: A method includes sending, by an access network device, first indication information to a terminal device, where the first indication information indicates a last packet in one or more first-type packets or a first packet in one or more second-type packets, where the first-type packet is enciphered using a first cipher key, and the second-type packet is enciphered using a second cipher key.

公开(公告)号：US11219091B2

公开(公告)日：2022-01-04

申请号：US16610654

申请日：2017-05-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibo Xu ,  Nathan Edward Tenny ,  Jian Wang ,  Yiru Kuang

IPC: H04W80/08 ,  H04L1/16 ,  H04W28/02 ,  H04W80/02 ,  H04W88/04

Abstract: Embodiments provide a data receiving status reporting method and apparatus. The method includes: determining, by first user equipment, a status of receiving at least one packet data convergence protocol layer protocol data unit PDCP PDU by second user equipment, where the at least one PDCP PDU is forwarded by the first user equipment to the second user equipment after being received by the first user equipment through a communications link between the first user equipment and a network device; and sending, by the first user equipment, a first status report to the network device, where the first status report is used to indicate the status of receiving the at least one PDCP PDU by the second user equipment.

公开(公告)号：US11096184B2

公开(公告)日：2021-08-17

申请号：US16492969

申请日：2017-03-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibo Xu ,  Nathan Edward Tenny ,  Yiru Kuang

IPC: H04W72/08 ,  H04L1/18 ,  H04L12/939 ,  H04W80/08

Abstract: A data processing method and a terminal device and a base station. The method includes: the terminal device determines to change the type of at least one wireless carrier of the terminal device from a first type to a second type and discards a radio link control protocol RLC and/or an RLC service data unit buffered by a transmit side of an RLC entity of at least one radio bearer. The terminal device assembles an RLC protocol data unit received by a receive side of the RLC layer entity of at least one radio bearer into an RLC service data unit, and delivers the RLC service data unit to an upper layer entity of the RLC layer entity, where the upper layer entity is an upper layer entity of the RLC layer entity before the type of the at least on radio bearer is changed.