公开(公告)号：US20240276583A1

公开(公告)日：2024-08-15

申请号：US18642048

申请日：2024-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoying XU ,  Yan WANG ,  Bin XU ,  Yinghao GUO

IPC: H04W76/20 ,  H04W74/0833 ,  H04W76/19 ,  H04W76/30

CPC classification number: H04W76/20 ,  H04W74/0833 ,  H04W76/19 ,  H04W76/30

Abstract: Embodiments of this application provide a communication method and apparatus. The method includes: A DU receives uplink data from a terminal device; the DU allocates a first cell radio network temporary identifier C-RNTI and a first DU interface identifier to the terminal device; the DU sends a first message to a central unit CU, where the first message includes the first C-RNTI and the first DU interface identifier; and the DU receives a second message from the CU, where the second message includes the first C-RNTI or the first DU interface identifier. The communication method and apparatus provided in embodiments of this application can reduce processing load of the DU and improve communication efficiency.

公开(公告)号：US20240057218A1

公开(公告)日：2024-02-15

申请号：US18493461

申请日：2023-10-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haisen ZHANG ,  Tingyu XIN ,  Yan WANG ,  Bingzhao LI ,  Bin XU

IPC: H04W76/40 ,  H04W76/12

CPC classification number: H04W76/40 ,  H04W76/12

Abstract: Data transmission methods and apparatuses, relate to the field of communications technologies are described. In an example method, a distributed unit (DU) receives a first packet data convergence protocol (PDCP) packet data unit (PDU) from a central unit (CU), where the first PDCP PDU carries data of a multicast broadcast service (MBS). The DU sends the first PDCP PDU to at least two terminal devices. The DU sends a status report to the CU, where the status report indicates results of sending the first PDCP PDU to the at least two terminal devices.

公开(公告)号：US20240031065A1

公开(公告)日：2024-01-25

申请号：US18473347

申请日：2023-09-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin XU ,  Bingzhao LI ,  Zhenzhen CAO

IPC: H04L1/1607 ,  H04W28/02

CPC classification number: H04L1/1642 ,  H04W28/0268

Abstract: A communication method and a communication apparatus. The method includes: an access network device receives first indication information from a core network device, where the first indication information indicates a value of a count of a first data packet, and the count includes a hyper frame number and a packet data convergence protocol sequence number. The access network device determines the value of the count of the first data packet based on the first indication information. The access network device determines, based on the first indication information received from the core network device, the value of the count corresponding to the data packet, to implement synchronization of values of packet data convergence protocol sequence numbers and synchronization of values of hyper frame numbers between different access network devices.

公开(公告)号：US20230262515A1

公开(公告)日：2023-08-17

申请号：US18304624

申请日：2023-04-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin XU ,  Bingzhao LI ,  Zhenzhen CAO ,  Yan WANG

IPC: H04W28/02

CPC classification number: H04W28/0273 ,  H04W28/0268

Abstract: This application provides example communication methods and apparatuses. In one example method applied to an first access network device, the method comprises receiving a first data packet of a first session from a core network device, where the first data packet comprises a first sequence number (SN). A second data packet is sent to a terminal device, where the second data packet belongs to data of a first data radio bearer (DRB), the second data packet comprises a packet data convergence protocol (PDCP) protocol data unit (PDU), the PDCP PDU is obtained based on the first data packet, and a PDCP SN of the PDCP PDU is determined based on the first SN.

公开(公告)号：US20230049788A1

公开(公告)日：2023-02-16

申请号：US17975916

申请日：2022-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin XU ,  Bingzhao LI ,  Lei CHEN ,  Haifeng YU

IPC: H04W4/06 ,  H04W40/02 ,  H04L45/74

Abstract: This application provides for a data transmission method, an apparatus, and a device. The method may be applied to a relay communication system. The method includes a first network device that receives a first data packet. The first data packet is a data packet of a first multimedia broadcast multicast service (MBMS), and the first data packet carries first information. When second information of the first network device matches the first information, the first network device sends the first data packet to a terminal device that accesses the first network device. The second information is preconfigured for the first network device. In this way, the MBMS is transmitted in the relay communication system.

公开(公告)号：US20220391471A1

公开(公告)日：2022-12-08

申请号：US17841162

申请日：2022-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leijun HE ,  Bin XU ,  Kaixing WANG

IPC: G06F17/16

Abstract: A method for performing a matrix multiplication operation is provided. The method includes: obtaining a matrix B1, a matrix A2, and an index matrix, wherein the index matrix comprises indexes, in a matrix A1, of elements in the matrix A2; generating m matrices B2 based on the index matrix and the matrix B1, wherein the m matrices B2 are all matrices with t rows and n columns, and each row of each matrix B2 is a row indicated in the matrix B1 by a corresponding element in the index matrix; and generating a matrix C based on the matrix A2 and the m matrices B2, wherein the matrix C is a product of the matrix A1 and the matrix B1.

公开(公告)号：US20220174541A1

公开(公告)日：2022-06-02

申请号：US17677636

申请日：2022-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin XU ,  Bingzhao LI ,  Lei CHEN ,  Hong WANG

IPC: H04W28/06 ,  H04W4/06

Abstract: Embodiments of this application provide a data transmission method and a device, and relate to the field of communication technologies, to resolve how a network device sends a data packet and how each terminal device receives the data packet when a communication manner between the network device and a plurality of terminal devices is switched from a unicast manner to a multicast manner. The method includes: A network device sends first indication information to a first terminal device, where the first indication information includes a first sequence number SN, and the first indication information is used to indicate the first terminal device to receive a data packet in a multicast manner. The network device sends the data packet to the first terminal device and a second terminal device in the multicast manner based on the first SN.

公开(公告)号：US20220141626A1

公开(公告)日：2022-05-05

申请号：US17575211

申请日：2022-01-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin XU ,  Bingzhao LI ,  Lei CHEN ,  Hong WANG ,  Xuelong WANG

IPC: H04W4/06 ,  H04L1/16

Abstract: The present disclosure relates to communication methods, apparatus, and systems. In one example method, a first apparatus determines a first status protocol data unit (PDU), where the first status PDU is used to indicate a receiving status of at least one data PDU from a second apparatus, and the at least one data PDU is transmitted by the second apparatus in a multicast mode. The first apparatus sends the first status PDU to the second apparatus.

公开(公告)号：US20210321260A1

公开(公告)日：2021-10-14

申请号：US17315049

申请日：2021-05-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin XU ,  Bingzhao LI ,  Lei CHEN ,  Xuelong WANG

IPC: H04W12/122 ,  H04W12/106 ,  H04W12/03 ,  H04W74/08

Abstract: This application provides a fake network device identification method and a communications apparatus. An uplink message sent by a terminal device is forwarded to a first network device via a second network device. After receiving the uplink message, the first network device generates a downlink message for the uplink message, performs security processing on the downlink message based on first time information, and/or sends the downlink message to the second network device. The second network device sends, to the terminal device, the downlink message on which the security processing is performed. The terminal device performs security verification on the received downlink message, and/or identifies whether the second network device is a fake network device. This helps improve communication security.

公开(公告)号：US20200077300A1

公开(公告)日：2020-03-05

申请号：US16674843

申请日：2019-11-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin XU ,  Zhenzhen CAO ,  Bingzhao LI ,  Xuelong WANG

IPC: H04W28/06

Abstract: A data transmission method includes: receiving, by a receive end, a Radio Link Control protocol data unit (RLC PDU); determining, by the receive end, whether the RLC PDU includes a complete service data unit (SDU) or an SDU segment, where the RLC PDU is transmitted in unacknowledged mode (UM); and transmitting, by the receive end to a Packet Data Convergence Protocol (PDCP) layer based on a result of the determining, the complete SDU or a complete SDU assembled by using the SDU segment. The data transmission method implements data transmission in UM at an RLC layer in 5G.