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公开(公告)号：US20210336717A1
公开(公告)日：2021-10-28
申请号：US17366938
申请日：2021-07-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin XU , Zhenzhen CAO , Bingzhao LI
Abstract: A transmission mode selection method and a device are provided. The method includes: determining first indication information, where the first indication information is used to indicate a changed transmission mode and/or indicate to change a transmission mode; and sending the first indication information to a terminal device. There may be a plurality of transmission modes for transmitting a data packet duplicated at a PDCP layer, in other words, there may be a plurality of modes for PDCP duplication. A transmission mode can be selected by using the first indication information. For example, when reliability of a mode for PDCP duplication is not high, another transmission mode can be selected by using the first indication information. In this way, a reliability requirement of a service is met as much as possible, thereby improving transmission quality of the service.
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公开(公告)号：US20200260283A1
公开(公告)日：2020-08-13
申请号：US16859699
申请日：2020-04-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Li HU , Bingzhao LI , Xiaoying XU , Jing CHEN , He LI
Abstract: This application provides an RRC connection resume method and apparatus. In the method, when a terminal moves to a target base station, the target base station may reselect, based on a capability and a requirement of the target base station, a first encryption algorithm and a first integrity protection algorithm that are used when the target base station communicates with the terminal, and send the first encryption algorithm and the first integrity protection algorithm to the terminal. On one hand, a security algorithm used for communication between the terminal and the target base station is flexibly selected. On the other hand, because the base station connected to the terminal changes, communication security can be improved by using a new encryption algorithm and integrity protection algorithm.
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公开(公告)号：US20200259598A1
公开(公告)日：2020-08-13
申请号：US16865018
申请日：2020-05-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei QUAN , Bingzhao LI , Jian ZHANG , Xun TANG , Jinhua MIAO , Xiaodong YANG
Abstract: A communication device receives a parallel hybrid automatic repeat request (HARQ) communication instruction, where the parallel HARQ communication instruction is used to instruct the communication device to send or receive data in a parallel HARQ manner, where the sending data in a parallel HARQ manner by the communication device is sending, by the communication device, at least one data packet with same content within a transmission time interval; and the receiving data in a parallel HARQ manner by the communication device is receiving at least one data packet with same content within a transmission time interval, and performing combined decoding on the received at least one data packet with same content; and the communication device sends or receives the data in the parallel HARQ manner according to the parallel HARQ communication instruction. According to the present invention, a delay of data transmission can be reduced.
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公开(公告)号：US20200068651A1
公开(公告)日：2020-02-27
申请号：US16673387
申请日：2019-11-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin XU , Zhenzhen CAO , Bingzhao LI , Li CHAI , Wei QUAN
Abstract: This application describes a data transmission method, a terminal device, and a network device. The method may include determining, by a medium access control (MAC) layer of a terminal device, a first MAC control element and a second MAC control element. The method may also include simultaneously transmitting, by the terminal device, the first MAC control element and the second MAC control element on different uplink transmission resources. The data transmission method, the terminal device, and the network device in embodiments of this application help to improve data transmission reliability.
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公开(公告)号：US20200021974A1
公开(公告)日：2020-01-16
申请号：US16582941
申请日：2019-09-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bingzhao LI , Wei QUAN , Zhenxing HU , Jian ZHANG , Xiaodong YANG , Jinhua MIAO
Abstract: A mobility management method, user equipment, and a network device are provided. The mobility management method includes: receiving, by user equipment UE in a connected state, a handover-free UE identifier from a network device, where the handover-free UE identifier is used to uniquely identify the UE in a handover-free state in a handover-free area, and the handover-free area includes at least two cells; entering, by the UE, the handover-free state after meeting an activation condition, where in the handover-free state, the UE stores the handover-free UE identifier and a connection context that is of the UE in the connected state, and the UE does not execute a handover procedure when the UE moves in the handover-free area; sending, by the UE, the handover-free UE identifier to the network device after the UE determines that a deactivation condition is met.
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Patent Agency Ranking
公开(公告)号：US20190029033A1
公开(公告)日：2019-01-24
申请号：US16144467
申请日：2018-09-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xun TANG , Wei QUAN , Bingzhao LI
Abstract: Example data transmission methods and apparatuses are provided to reduce an uplink transmission latency of a user terminal and improve system resource utilization. One example method includes notifying, by a base station, a user terminal of a semi-persistent SPS period, where the SPS period is a short period. A first SPS resource is allocated, by the base station, to the user terminal. Data that is periodically sent by the user terminal based on the SPS period is received by using the first SPS resource.
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公开(公告)号：US20190028854A1
公开(公告)日：2019-01-24
申请号：US16138475
申请日：2018-09-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yao HUA , Bingzhao LI , Xiao XIAO
CPC classification number: H04W4/06 , H04W8/24 , H04W36/0061 , H04W36/08 , H04W72/005 , H04W84/042 , H04W88/18
Abstract: A multicast transmission method is disclosed. A base station of a first cell obtains first multicast resource information of at least one second cell, where the base station of the first cell is different from a base station of each second cell; and the base station of the first cell sends second multicast resource information to user equipment, where the second multicast resource information is used to indicate a resource configuration used by each second cell to transmit multicast service data. The base station of the first cell actively sends obtained multicast resource information to the user equipment in a broadcast manner. In this way, the base station of the first cell does not need to configure, in a unicast manner for each user equipment, a resource location for sending/reading the multicast service data of each second cell, thereby reducing signaling overheads.
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公开(公告)号：US20170359744A1
公开(公告)日：2017-12-14
申请号：US15689859
申请日：2017-08-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanyan CHEN , Bingzhao LI , Yu GONG
Abstract: The present application provides a method and a terminal for determining a frequency to be measured. The terminal receives frequency information about an inter-frequency measurement object and frequency priority information about the inter-frequency measurement object, and determines the number of at least one frequency for the received inter-frequency measurement object according to the frequency information, and when the number of the at least one frequency for the received inter-frequency measurement object is greater than the number of at least one frequency for an inter-frequency measurement object supported by the terminal, the terminal is capable of selecting, according to the frequency priority information, at least one frequency to be measured from the at least one frequency for the received inter-frequency measurement object, wherein the number of the at least one frequency to be measured is equal to the number of frequencies for the inter-frequency measurement object supported by the terminal.
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公开(公告)号：US20170302491A1
公开(公告)日：2017-10-19
申请号：US15637277
申请日：2017-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaodong YANG , Wei QUAN , Bingzhao LI , Zhenxing HU , Jian ZHANG , Jinhua MIAO , Chuanfeng HE
Abstract: The present invention provides a demodulation reference signal transmission apparatus, system, and method. The method includes: sending, by a base station, a configuration indication to user equipment UE, where the configuration indication is used to instruct the UE to send an independent DMRS and/or instruct the UE to send a combination of a DMRS and uplink data; and subsequently receiving, by the base station, the independent DMRS sent by the UE; and/or receiving the combination of the DMRS and the uplink data sent by the UE. In this way, the base station can trigger the UE to send the foregoing DMRS to complete frequency offset estimation, thereby improving accuracy of the frequency offset estimation.
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公开(公告)号：US20160360460A1
公开(公告)日：2016-12-08
申请号：US15239546
申请日：2016-08-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuanyu GUO , Yanyan CHEN , Bingzhao LI
CPC classification number: H04W36/18 , H04W36/0066
Abstract: A method for switching of multi-carrier and device are provided. The method comprises: receiving a message sent from a source RAN node corresponding to a first link and comprising information of a second link; according to the information of the second link, establishing a connection between a target RAN node corresponding to the first link and an RAN node corresponding to the second link, so as to perform data transmission. The first link is a link in a first Radio Access Technology (RAT) network, and the second link is a link in a second RAT network. Embodiments of the present invention can ensure the continuity of the throughput of data transmission during switching under aggregation of multiple RAT carriers.
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