公开(公告)号：US12219513B2

公开(公告)日：2025-02-04

申请号：US17959343

申请日：2022-10-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Chen ,  Bingzhao Li ,  Zonghui Xie ,  Haifeng Yu

IPC: H04W56/00 ,  H04W74/0833

Abstract: A communication method and apparatus. A terminal device determines, based on first information received from a first network device, that a second network device has first time information, where the first time information is time information having precision that is higher than precision of second time information of the first network device. The terminal device obtains the first time information of the second network device based on the first information. The terminal device obtains high-precision time information to improve communication reliability.

公开(公告)号：US11902915B2

公开(公告)日：2024-02-13

申请号：US17360276

申请日：2021-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifeng Yu ,  Yiling Wu ,  Yuchen Wang ,  Zhenyu Li ,  Chenwan Li

IPC: H04W52/36 ,  H04W48/20 ,  H04W52/14 ,  H04W74/08

CPC classification number: H04W52/367 ,  H04W48/20 ,  H04W52/146 ,  H04W74/0833

Abstract: This present disclosure discloses example communication methods and communications apparatuses. One example communication method includes a terminal device determining a first offset of a first power class and a second offset of the first power class when a power class of the terminal device is the first power class. A compensation amount of the first power class is determined based on the first offset and the second offset. A determination as to whether to camp on a first cell is made based on the second offset and the compensation amount of the first power class.

公开(公告)号：US11606803B2

公开(公告)日：2023-03-14

申请号：US16671768

申请日：2019-11-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifeng Yu ,  Bo Lin ,  Xin Xiong ,  Bin Xu

IPC: H04W72/12 ,  H04W28/02 ,  H04W72/04 ,  H04W80/02 ,  H04W72/1268

Abstract: A method for scheduling an uplink transmission resource, and a device are disclosed. The method includes: determining, by a terminal device, a first scheduling request according to pre-obtained first indication information when a first BSR is triggered because to-be-sent data exists on a first logical channel of the terminal device, where the first indication information is used to indicate a correspondence between a logical channel and a type of a scheduling request, and the first scheduling request includes a type of the first scheduling request; sending, by the terminal device, the first scheduling request to an access network device; and receiving, by the terminal device, first uplink scheduling information sent by the access network device, where the uplink scheduling information is used to indicate a first uplink resource used by the terminal device to send uplink data to the access network device.

公开(公告)号：US11057930B2

公开(公告)日：2021-07-06

申请号：US16115328

申请日：2018-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifeng Yu ,  Feng Yu ,  Guangwei Yu ,  Wurong Zhang

IPC: H04W74/02 ,  H04W16/14 ,  H04W74/08 ,  H04W72/12

Abstract: The present disclosure provides a method, system, and terminal device for data transmission in an unlicensed spectrum, effectively reduce mutual signal interference between different systems while meeting regulation constraints on use of the unlicensed spectrum. The method in the present disclosure includes: at a processing start moment of a terminal device in a current channel occupancy time window of a network device, when remaining duration of the current channel occupancy time window of the network device is greater than or equal to duration for the terminal device to transmit a to-be-sent data packet to the network device, selecting based on a user attribute of the terminal device and from a mapping relationship between a user attribute and a transmission mode; and sending the to-be-sent data packet to the network device in the selected transmission mode.

公开(公告)号：US10904866B2

公开(公告)日：2021-01-26

申请号：US16206289

申请日：2018-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng Yu ,  Tao Zhang ,  Haifeng Yu ,  Guangwei Yu

IPC: H04W76/11 ,  H04W72/04 ,  H04W60/00 ,  H04W76/18 ,  H04W76/28 ,  H04W76/27 ,  H04W12/06 ,  H04W48/16 ,  H04W88/06 ,  H04W92/10

Abstract: The present disclosure discloses an information transmission method, user equipment, an access network device, and a core network device. The method includes: determining, by user equipment UE when the UE is in an idle state, whether there is to-be-transmitted uplink information; and sending, by the UE, a first request message to a first access network device when the UE determines that there is to-be-transmitted uplink information, where the first request message is a first air interface message for the UE to switch from the idle state to a connected state, and the first request message carries uplink non-access stratum NAS information and air interface identity information that is stored on the UE.

公开(公告)号：US20200267594A1

公开(公告)日：2020-08-20

申请号：US16651916

申请日：2018-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibo Xu ,  Yiru Kuang ,  Jian Wang ,  Haifeng Yu

IPC: H04W28/02 ,  H04W72/12 ,  H04L1/18 ,  H04W80/02

Abstract: Embodiments of this application provide a scheduling request processing method and a terminal device. The scheduling request processing method includes: determining, by a terminal device, whether there is a regular BSR associated with a first logical channel that is triggered and has not been canceled; and if a regular BSR associated with the first logical channel is triggered and has not been canceled, and the terminal device has no uplink resource available to transmit data of the first logical channel, and a first timer of the terminal device is not running, triggering, by the terminal device, an SR, where the first timer is configured to delay transmission of the SR. According to the scheduling request processing method provided in the embodiments of this application, when the terminal device has no uplink resource available to transmit the data of the logical channel associated with the BSR, the SR is triggered to implement uplink resource scheduling, thereby satisfying a QoS requirement of the data carried on the logical channel.

公开(公告)号：US20200068637A1

公开(公告)日：2020-02-27

申请号：US16673028

申请日：2019-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng Yu ,  Xin Xiong ,  Bo Lin ,  Haifeng Yu

IPC: H04W76/15 ,  H04W80/02 ,  H04W80/08 ,  H04L1/16

Abstract: A method includes: receiving, a target serial number transmitted by a second access network device, where the target serial number is obtained based on a first serial number, the first serial number is a serial number of a first RLC SDU successfully received by the second access network device, the first access network device, the second access network device, and a terminal device each include an RLC entity of a split bearer, a transmission mode of the split bearer is duplicate transmission, and the RLC entities of the split bearer are in an acknowledged mode AM; obtaining a second serial number based on the target serial number, where the second serial number is a serial number of a second RLC SDU, and the first RLC SDU is the same as the second RLC SDU; and marking the second serial number as a successfully received state.

公开(公告)号：US20200022150A1

公开(公告)日：2020-01-16

申请号：US16579288

申请日：2019-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haifeng Yu ,  Xin Xiong ,  Feng Yu

IPC: H04W72/04 ,  H04W72/14 ,  H04W72/12 ,  H04W76/27 ,  H04W80/02 ,  H04L5/00 ,  H04L27/26

Abstract: A resource scheduling method includes: obtaining, by a terminal device, a first resource configuration parameter from an access network device; determining, by the terminal device, whether a first logical channel (LCH) supports the first resource configuration parameter, where the first LCH is an LCH on which there is to-be-sent data; and if the first LCH supports the first resource configuration parameter, determining, by the terminal device, a resource of the first LCH based on the first resource configuration parameter. According to a resource scheduling method provided in this application, after obtaining the first resource configuration parameter, the terminal device determines the resource of the first LCH by determining whether a mapping relationship exists between the first LCH and the first resource configuration parameter, to map the first LCH to the resource that matches the first LCH. This improves resource utilization.

公开(公告)号：US20190274180A1

公开(公告)日：2019-09-05

申请号：US16417267

申请日：2019-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haifeng Yu ,  Xin Xiong ,  Feng Yu

IPC: H04W76/18 ,  H04W76/27 ,  H04W76/19 ,  H04W24/10

Abstract: Embodiments of the present invention relate to the field of communications technologies, and disclose a method and an apparatus for recovering from a radio downlink failure. The method includes: monitoring a first radio link to determine whether a radio downlink failure occurs on the first radio link, where the first radio link is a currently connected radio link; if it is detected that the radio downlink failure occurs on the first radio link, starting a physical-layer-monitored automatic-recovery process for the first radio link and starting a Radio Link Control RRC connection re-setup process to set up a second radio link; and recovering from the radio downlink failure through either of the physical-layer-monitored automatic-recovery process and the RRC connection re-setup process.

公开(公告)号：US11937121B2

公开(公告)日：2024-03-19

申请号：US16651916

申请日：2018-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibo Xu ,  Yiru Kuang ,  Jian Wang ,  Haifeng Yu

IPC: H04W28/02 ,  H04L1/1829 ,  H04W72/1268 ,  H04W80/02

CPC classification number: H04W28/0278 ,  H04L1/1848 ,  H04W72/1268 ,  H04W80/02

Abstract: Embodiments of this application provide a scheduling request processing method and a terminal device. The scheduling request processing method includes: determining that a regular buffer status report, BSR, associated with a first logical channel is triggered and has not been canceled; determining that there is no uplink resource available to transmit data of the first logical channel, and a first timer of a terminal device is not running; and triggering a scheduling request, SR, wherein the first timer is configured to delay transmission of the SR.