公开(公告)号：US11778070B2

公开(公告)日：2023-10-03

申请号：US17669681

申请日：2022-02-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang Fan ,  Chong Lou ,  Xiaoying Xu

IPC: H04L69/22 ,  H04L69/04

CPC classification number: H04L69/04 ,  H04L69/22

Abstract: An Ethernet header compression method and apparatus and an Ethernet header decompression method and apparatus. After receiving an Ethernet frame including a first to-be-compressed field, a compression end compresses an Ethernet header of the Ethernet frame based on a first correspondence including first compression information and a value of the first to-be-compressed field and the first compression information. Correspondingly, a decompression end decompresses an Ethernet header of a compressed Ethernet frame based on the first correspondence when receiving the compressed Ethernet frame. In the embodiments of this application, because the Ethernet header of the Ethernet frame is compressed, communication resources is saved.

公开(公告)号：US11737085B2

公开(公告)日：2023-08-22

申请号：US17039411

申请日：2020-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chong Lou ,  Xing Liu ,  Qufang Huang

IPC: H04W72/1268 ,  H04L1/1812 ,  H04W72/23

CPC classification number: H04W72/1268 ,  H04L1/1812 ,  H04W72/23

Abstract: This application provides a data transmission method and apparatus, and a system, to reduce outdated information sent by a terminal to a network device, thereby reducing improper scheduling decisions made by the network device. The method includes: sending a first data packet to a network device, and storing the first data packet; receiving a first uplink grant from the network device, and skipping using the first uplink grant to perform uplink transmission; receiving a second uplink grant from the network device, where the second uplink grant is a grant for retransmission and generated due to a failure of transmission on the first uplink grant; and ignoring the second uplink grant, or transmitting a second data packet to the network device based on the second uplink grant.

公开(公告)号：US20230090249A1

公开(公告)日：2023-03-23

申请号：US17991280

申请日：2022-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang Fan ,  Chong Lou

IPC: H04L1/16 ,  H04W28/04 ,  H04L5/00

Abstract: This application provides a method and a corresponding apparatus. One example method includes: A transmitting side receives an RLC status report from a receiving side, where the RLC status report includes at least one piece of status information, each of the at least one piece of status information indicates one or more receiving statuses of one or more consecutive RLC service data units (SDUs) that are not successfully received, and the at least one piece of status information is sequentially sorted in ascending order of RLC SDU sequence numbers (SNs) in the RLC status report; and if the last piece of status information in the RLC status report indicates that a part of data of a first RLC SDU is lost, the transmitting side determines, based on the RLC status report, whether a receiving status of the first RLC SDU is completely reflected in the RLC status report.

公开(公告)号：US11611912B2

公开(公告)日：2023-03-21

申请号：US16715291

申请日：2019-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Feng Han ,  Hao Bi ,  Yinghao Jin ,  Chong Lou

IPC: H04W36/00 ,  H04W76/30 ,  H04W76/27 ,  H04W4/06 ,  H04W36/04 ,  H04W36/30

Abstract: A cell reselection method includes generating, by a radio access network device, cell reselection information, wherein the cell reselection information includes an identifier of at least one carrier frequency and an identifier of a network slice supported by each of the at least one carrier frequency. The cell reselection method further includes sending, by the radio access network device, the cell reselection information to a terminal device, wherein the cell reselection information is useable by the terminal device for cell reselection.

公开(公告)号：US20230040079A1

公开(公告)日：2023-02-09

申请号：US17964587

申请日：2022-10-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kaiyang Qu ,  Qufang Huang ,  Xingxing Hu ,  Chong Lou

IPC: H04W24/02 ,  H04W24/10

Abstract: A terminal device generates a report result including at least one of a logged minimization of drive tests report, an RLF report, and an RACH report. The logged minimization of drive tests report includes an identifier of a candidate access cell, information indicating whether the candidate access cell supports a network slice service initiated by the terminal device, location information of the terminal device where the terminal device receives a system message of the candidate access cell, and a network slice identifier of the network slice service initiated by the terminal device. The RLF report includes an identifier of a cell in which a radio link failure occurs after the terminal device accesses the cell and the network slice identifier corresponding to the network slice service in which the radio link failure occurs on the terminal device. The RACH report includes an identifier of a cell accessed by the terminal device and the network slice identifier. The terminal device sends the report result to a radio access network device to which a serving cell belongs.

公开(公告)号：US20230034266A1

公开(公告)日：2023-02-02

申请号：US17966533

申请日：2022-10-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chong Lou ,  Qiang Fan ,  Qufang Huang

IPC: H04W72/04 ,  H04L1/18

Abstract: Embodiments of this application provide a data transmission method and an apparatus. When a time-frequency resource used by a terminal device for data transmission is unavailable, the terminal device postpones, based on indication information of a network device and/or according to a postponement rule, the data transmission to a time-frequency resource closest to the time-frequency resource. Therefore, a data transmission latency is reduced.

公开(公告)号：US11570791B2

公开(公告)日：2023-01-31

申请号：US17094818

申请日：2020-11-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chong Lou ,  Xingxing Hu ,  Xing Liu

IPC: H04W72/12 ,  H04L47/215 ,  H04W28/02 ,  H04L12/819 ,  H04W80/02

Abstract: Various embodiments provide a resource allocation method and an apparatus. In those embodiments, a terminal device obtains a first parameter indicating a maximum service data volume to be provided by an access network device for a first service in a first time length; and determines, based on the maximum service data volume, a resource of a media access control protocol data unit MAC PDU, the resource being occupied by buffered data of the first service. In those embodiments, the terminal device determines, based on the maximum service data volume of the first service, the resource of the MAC PDU. Compared with a conventional method, the maximum service data volume of the first service is considered. This helps improve reasonableness of allocating the resource of the MAC PDU to the data of the first service.

公开(公告)号：US11502785B2

公开(公告)日：2022-11-15

申请号：US16787308

申请日：2020-02-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chong Lou ,  Xing Liu ,  Qufang Huang

IPC: H04L1/18 ,  H04L47/283 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14

Abstract: An access network device sends first information and second information to a terminal, where the first information includes a value set of a communication time interval, and the second information indicates a value of the communication time interval in the value set, and the value is used to determine timing duration of a hybrid automatic repeat request (HARQ) round trip time (RTT) timer. The communication time interval includes at least one of a time interval from the terminal receiving downlink scheduling grant information to the terminal receiving downlink data scheduled by using the downlink scheduling grant information, a time interval from the terminal receiving downlink data to the terminal sending HARQ feedback information of the downlink data, and a time interval from the terminal receiving uplink scheduling grant information to the terminal sending uplink data scheduled by using the uplink scheduling grant information.

公开(公告)号：US11375025B2

公开(公告)日：2022-06-28

申请号：US17216244

申请日：2021-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chong Lou ,  Xing Liu ,  Qufang Huang ,  Xiaoying Xu

IPC: G06F15/173 ,  H04L67/141 ,  H04L47/70

Abstract: A communications method and apparatus are provided. The method includes: A first access network device sends a first message to a core network device, where the first message is used to indicate to suspend one or both of a first PDU session and a second PDU session. The first PDU session and the second PDU session are PDU sessions that are established as requested by a same terminal, and are used to transmit a duplicated data packet. According to the method, when a condition for implementing reliable transmission is not met, the core network device can be indicated to suspend the PDU session. In this way, a PDU session does not need to be re-established, and signaling overheads for establishing the PDU session are saved.

公开(公告)号：US20210378007A1

公开(公告)日：2021-12-02

申请号：US17403649

申请日：2021-08-16

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Chunhua You ,  Qufang Huang ,  Yinghao Guo ,  Chong Lou

IPC: H04W74/00 ,  H04L1/18 ,  H04W72/04 ,  H04W74/08 ,  H04W76/28

Abstract: This application provides a transmission method and a communications apparatus, to simplify LBT behavior before a terminal device can transmit a HARQ feedback, and reduce implementation complexity. The method includes: receiving first DCI, where the first DCI is used to indicate or activate a downlink transmission resource; receiving downlink data on the downlink transmission resource; receiving second DCI, where the second DCI is used to indicate an uplink transmission resource, and the uplink transmission resource is used to transmit feedback information for the downlink data; and sending the feedback information on the uplink transmission resource.