公开(公告)号：US20200267724A1

公开(公告)日：2020-08-20

申请号：US16849308

申请日：2020-04-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingzhao LI ,  Zhenxing HU ,  Wei QUAN ,  Jian ZHANG ,  Jinhua MIAO ,  Xiaodong YANG

IPC: H04W72/04 ,  H04W16/14

Abstract: A data transmission method and an apparatus are provided. The method includes: determining, by a base station, a time-domain interval of available time-frequency resources in an unlicensed spectrum, where the available time-frequency resources are continuous time-frequency resources in a time domain; sending, by the base station, a preamble signal in a first subframe in the interval, where the first subframe is an initial subframe in the interval; and sending, by the base station, downlink control information and data after sending the preamble signal, where the data is in the first subframe, the downlink control information includes scheduling indication information, and the scheduling indication information is used to indicate a frequency-domain location of the data. According to the present invention, spectrum utilization can be improved.

公开(公告)号：US20200186318A1

公开(公告)日：2020-06-11

申请号：US16786370

申请日：2020-02-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jinhua MIAO ,  Wei QUAN ,  Jian ZHANG ,  Li CHAI

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04 ,  H04W56/00 ,  H04B7/06 ,  H04W76/38

Abstract: This application provides a method for activating a secondary cell, a communications apparatus, and a network device. The method includes: after receiving an activation command for a secondary cell that is sent by a network device, sending a first uplink signal to the network device using a first period from a first time unit; determining a second time unit; and sending a second uplink signal to the network device using a second period or based on scheduling of the network device after the second time unit, where the second period is greater than the first period. According to the method, in a secondary cell activation process, an uplink signal can be sent at a relatively short period thereby resolving a problem that network resource consumption and an activation delay are unbalanced in the secondary cell activation process, and improving data transmission efficiency and user experience.

公开(公告)号：US20200045688A1

公开(公告)日：2020-02-06

申请号：US16598811

申请日：2019-10-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinhua MIAO ,  Jian ZHANG ,  Qinghai ZENG ,  Wei QUAN ,  Bingzhao LI ,  Xun TANG

IPC: H04W72/04 ,  H04L1/16 ,  H04L1/18 ,  H04W16/14 ,  H04L5/00

Abstract: A method comprises: determining an uplink shared resource and a demodulation reference signal (DM-RS) that are of user equipment (UE); sending uplink data by using the uplink shared resource, wherein the uplink data comprises an identifier and the DM-RS that are of the UE; calculating an agreed feedback location, wherein the agreed feedback location is obtained according to a resource location of the uplink shared resource and the DM-RS; calculating an offset of the UE, wherein the offset of the UE is obtained according to the identifier of the UE; and receiving acknowledgement information (ACK) at a resource location of a downlink resource, wherein the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset. According to the method, so that each UE is clear about whether the uplink data of the UE is successfully sent.

公开(公告)号：US20190297551A1

公开(公告)日：2019-09-26

申请号：US16438804

申请日：2019-06-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hong WANG ,  Wei QUAN ,  Jian ZHANG

IPC: H04W36/18 ,  H04W36/08

Abstract: Embodiments of this application provide a handover method, a terminal device, and a network device. The method includes: obtaining, by a first terminal device, first identification information, where the first identification information includes identification information of at least one second terminal device; and performing, by the first terminal device, handover of the first terminal device and the at least one second terminal device based on the first identification information, where the handover is handover from a first network device to a second network device. According to the embodiments of this application, impact of signaling on a network side caused by simultaneous handover of a large quantity of terminal devices is reduced, and a service interruption time during handover is reduced, thereby effectively supporting simultaneous handover of a plurality of terminal devices.

公开(公告)号：US20190274067A1

公开(公告)日：2019-09-05

申请号：US16416747

申请日：2019-05-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qinghai ZENG ,  Jian ZHANG

IPC: H04W28/08 ,  H04L5/00 ,  H04L12/807 ,  H04W24/10

Abstract: The present invention discloses a data transmission method, a base station, and a wireless communications device, which can ensure normal communication between a terminal and a base station in a multi-stream aggregation scenario. The method includes: receiving, by a primary base station, offloading information sent by a wireless communications device, where the wireless communications device is a secondary base station or a terminal; and adjusting, by the primary base station according to the offloading information, offloading data that is allocated to a multi-stream aggregation base station. The present invention is applicable to the communications field.

公开(公告)号：US20190268100A1

公开(公告)日：2019-08-29

申请号：US16406818

申请日：2019-05-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei QUAN ,  Jian ZHANG

IPC: H04L1/16 ,  H04W72/04 ,  H04L12/801

Abstract: Embodiments of the present disclosure disclose a data transmission method and apparatus. The data transmission method includes: performing, by a Packet Data Convergence Protocol (PDCP) entity, lossless transmission on PDCP protocol data units (PDUs) or PDCP service data units (SDUs), where each of the PDCP PDUs or the SDUs is associated with one serial number. In this embodiment, during lossless transmission, no data packet is lost, thereby ensuring communication quality in an inter-station carrier aggregation scenario and achieving an optimization objective.

公开(公告)号：US20190261408A1

公开(公告)日：2019-08-22

申请号：US16400778

申请日：2019-05-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chong LOU ,  Xing LIU ,  Jian ZHANG

IPC: H04W72/14 ,  H04W72/12 ,  H04W72/04 ,  H04W72/10

Abstract: A resource allocation method, a terminal and an apparatus are provided. A terminal receives an uplink scheduling grant indicating an uplink resource corresponding to a first radio interface technology from an access network device; selects a logical channel set from logical channels of a terminal, where the logical channel set is a set of logical channels on which to-be-sent data exists and that correspond to the first radio interface technology, and the first radio interface technology is one of at least one radio interface technology, or a radio interface technology specified by the access network device in the at least one radio interface technology; and maps, based on a priority and a prioritized bit rate that are of each logical channel in the logical channel set and corresponding to the first radio interface technology, to-be-sent data corresponding to the logical channel set onto the uplink resource.

公开(公告)号：US20190223109A1

公开(公告)日：2019-07-18

申请号：US16368541

申请日：2019-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hong WANG ,  Wei QUAN ,  Jian ZHANG

IPC: H04W52/14 ,  H04W52/24 ,  H04W52/28 ,  H04W52/26 ,  H04W72/04 ,  H04W72/08 ,  H04W52/48

CPC classification number: H04W52/146 ,  H04W52/24 ,  H04W52/242 ,  H04W52/245 ,  H04W52/265 ,  H04W52/281 ,  H04W52/383 ,  H04W52/48 ,  H04W72/042 ,  H04W72/044 ,  H04W72/085

Abstract: A data sending method and an apparatus are to reduce a quantity of UEs that retransmit data, and reduce an entire data sending latency. The method includes: sending, by a base station, power configuration information to a terminal, where the power configuration information includes a one-to-one correspondence between power information and terminal status information, and the power configuration information is used to enable the terminal to obtain transmit power used to send data; and receiving, by the base station, data sent by the terminal, where the transmit power of the data is determined by the terminal based on the power configuration information; the terminal status information includes at least one of a service type of the data sent by the terminal, a priority of the data sent by the terminal, and information about measurement of a radio environment by the terminal.

公开(公告)号：US20190215806A1

公开(公告)日：2019-07-11

申请号：US16188406

申请日：2018-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li CHAI ,  Hong WANG ,  Jian ZHANG ,  Wei QUAN ,  Zhenzhen CAO

IPC: H04W72/04 ,  H04W48/12 ,  H04W24/10 ,  H04W4/70 ,  H04W88/10

CPC classification number: H04W72/042 ,  H04W4/70 ,  H04W24/10 ,  H04W48/12 ,  H04W72/0406 ,  H04W88/10

Abstract: The method may include: after receiving, through a first interface or a second interface, resource allocation information of a neighboring cell of a serving cell in which UE is located, a network device may allocate a resource to the UE based on the resource allocation information of the neighboring cell, so as to prevent the UE from using a same resource as UE located in the neighboring cell, and reduce interference to the neighboring cell; or allocate, to the UE, a resource with relatively small interference to the UE, so as to reduce interference of the neighboring cell to the UE. The first interface is an interface that performs communication by using a UE-to-UE communications technology. The second interface is an interface that performs communication by using a UE-to-network device communications technology.

公开(公告)号：US20190191465A1

公开(公告)日：2019-06-20

申请号：US16211948

申请日：2018-12-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian ZHANG

IPC: H04W74/08 ,  H04L1/18 ,  H04W48/18 ,  H04W76/15

CPC classification number: H04W74/0841 ,  H04L1/1812 ,  H04L29/06 ,  H04W48/18 ,  H04W72/1215 ,  H04W76/15 ,  H04W80/02 ,  H04W88/06

Abstract: This application discloses a Media Access Control method, and pertains to the field of wireless communications technologies. The method is applied to a radio access device that supports at least two types of air interfaces, and the radio access device includes dedicated control entities respectively corresponding to the at least two types of air interfaces and a common control entity. The common control entity determines a dedicated control entity corresponding to a specified air interface between the radio access device and a terminal, and interacts with the dedicated control entity corresponding to the specified air interface, to implement a Media Access Control function of the specified air interface. Execution entities of a Media Access Control MAC layer of the radio access device are divided into one common control entity and a dedicated control entity that corresponds to each of at least one type of air interface, and the common control entity interacts with the dedicated control entity corresponding to any air interface, to implement a Media Access Control function of the air interface, so that the radio access device in a radio communications system supports a plurality of air interfaces.