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    Multicast service transmission method and device
    12.
    发明授权
    Multicast service transmission method and device 有权

    公开(公告)号：US10966061B2

    公开(公告)日：2021-03-30

    申请号：US16368085

    申请日：2019-03-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Baokun Shan ,  Yinghui Yu ,  Tong Ji ,  Li Chen

    IPC: H04W4/06 ,  H04W8/04 ,  H04W28/22 ,  H04W16/18 ,  H04W88/08 ,  H04L1/08 ,  H04W72/00 ,  H04W4/00

    Abstract: A multicast service transmission method and a device, the method comprising determining, by a core network device, a coverage requirement of a to-be-transmitted multicast service, transmitting, by the core network device, the coverage requirement to an access network device, where the coverage requirement is used to determine a transmission parameter used to transmit the multicast service to a terminal device, receiving, by the access network device, the coverage requirement, determining, by the access network device according to the coverage requirement, the transmission parameter, and transmitting, by the access network device, the multicast service to the terminal device according to the transmission parameter.

    Signal sending method, signal receiving method, and corresponding device
    13.
    发明授权
    Signal sending method, signal receiving method, and corresponding device 有权

    公开(公告)号：US10917873B2

    公开(公告)日：2021-02-09

    申请号：US16673640

    申请日：2019-11-04

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Tong Ji ,  Yuwan Su ,  Xiaolei Tie ,  Zhe Jin ,  Weiliang Zhang

    IPC: H04W52/02 ,  H04W68/02 ,  H04W8/18 ,  H04W72/12 ,  H04W76/28

    Abstract: The Application discloses a signal sending method that includes: generating, by a network device, a first indication signal, where the first indication signal is used to indicate that a terminal device is not paged and/or no system message changes, the first indication signal corresponds to a first international mobile subscriber identity (IMSI) set, and a quantity of IMSIs in the first IMSI set is less than or equal to a quantity of IMSIs corresponding to one paging occasion (PO); and sending, by the network device, the first indication signal to a first terminal device, where the first terminal device is a terminal device corresponding to any IMSI in the first IMSI set.

    MULTICAST-BASED WIRELESS COMMUNICATION METHOD, TERMINAL DEVICE, AND BASE STATION
    14.
    发明申请
    MULTICAST-BASED WIRELESS COMMUNICATION METHOD, TERMINAL DEVICE, AND BASE STATION 审中-公开

    公开(公告)号：US20190174529A1

    公开(公告)日：2019-06-06

    申请号：US16272715

    申请日：2019-02-11

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

    Inventor： Xiaolei Tie ,  Tong Ji ,  Meng Hua

    IPC: H04W72/12 ,  H04W72/04 ,  H04W4/70 ,  H04W68/00 ,  H04W4/06 ,  H04W76/11

    Abstract: Embodiments of the present invention provide a multicast-based wireless communication method, a terminal device, and a base station. The method includes: in a process of receiving a current multicast service, receiving, by a terminal device, downlink control information DCI transmitted by a base station, where the DCI is used to schedule a current multicast traffic channel MTCH, and the DCI includes indication information used to indicate that configuration information of the MTCH is modified in a next modification period MP or a current MP; and obtaining, by the terminal device, modified configuration information according to the indication information. System flexibility is improved according to the embodiments of the present invention.

    Transmit End, Receive End, and Method for Coexistence of Single Carrier System and Multicarrier System
    16.
    发明申请
    Transmit End, Receive End, and Method for Coexistence of Single Carrier System and Multicarrier System 审中-公开
    发射端，接收端和单载波系统和多载波系统共存的方法

    公开(公告)号：US20160198472A1

    公开(公告)日：2016-07-07

    申请号：US15071952

    申请日：2016-03-16

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yiling Wu ,  Guangwei Yu ,  Tong Ji ,  Weiliang Zhang

    IPC: H04W72/04 ,  H04L27/26

    CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L5/0066 ,  H04L27/2636 ,  H04L27/2637

    Abstract: The signal transmitting method includes that a transmit end modulates a first frequency band that corresponds to a first signal to be transmitted by the single carrier system onto a second frequency band that corresponds to a second signal to be transmitted by the multicarrier system, to obtain a transmit signal including at least the first signal and/or the second signal. A spacing between a center frequency of a first subchannel and a center frequency of a second subchannel is an integer multiple of a spacing between two adjacent second subchannels. A signal bandwidth that corresponds to the first subchannel is less than or equal to a signal bandwidth that corresponds to the second subchannel. The method includes transmitting the transmit signal to a receive end for completing reception of the first signal and the second signal.

    Abstract translation: 信号发送方法包括发送端将对应于要由单载波系统发送的第一信号的第一频带调制到与要由多载波系统发送的第二信号相对应的第二频带上，以获得 发送信号至少包括第一信号和/或第二信号。 第一子信道的中心频率与第二子信道的中心频率之间的间隔是两个相邻的第二子信道之间的间隔的整数倍。 对应于第一子信道的信号带宽小于或等于对应于第二子信道的信号带宽。 该方法包括将发送信号发送到接收端，以完成第一信号和第二信号的接收。

    METHOD AND DEVICE FOR TRANSMITTING INFORMATION
    17.
    发明申请
    METHOD AND DEVICE FOR TRANSMITTING INFORMATION 审中-公开
    用于发送信息的方法和设备

    公开(公告)号：US20150318967A1

    公开(公告)日：2015-11-05

    申请号：US14800373

    申请日：2015-07-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yongxia Lyu ,  Wen Zhang ,  Tong Ji

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L5/0044 ,  H04L1/1822 ,  H04L1/1887 ,  H04L1/1896 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0042 ,  H04L5/0064 ,  H04W4/70 ,  H04W72/0406

    Abstract: A method and device for transmitting information are provided, and transmission efficiency in a case of a low code rate is ensured. The method includes: determining the number of groups M and/or a group size N, where M is an integer greater than 1, and N is an integer greater than 1 or equal to 1; processing, according to M and/or N, an information stream to be grouped to obtain M groups of information streams to be sent; and sending, separately over M different time-frequency resources, the M groups of information streams to be sent, where the number of symbols in each time-frequency resource of the M different time-frequency resources is greater than 4.

    Abstract translation: 提供用于发送信息的方法和装置，并且确保在低码率的情况下的传输效率。 该方法包括：确定组数M和/或组大小N，其中M是大于1的整数，N是大于1或等于1的整数; 根据M和/或N处理要分组的信息流以获得要发送的M组信息流; 并且分别在M个不同的时间频率资源上发送要发送的M组信息流，其中M个不同时间 - 频率资源的每个时间 - 频率资源中的符号数量大于4。

    MESSAGE TRANSMISSION METHOD AND DEVICE
    18.
    发明公开
    MESSAGE TRANSMISSION METHOD AND DEVICE 审中-公开

    公开(公告)号：US20230283402A1

    公开(公告)日：2023-09-07

    申请号：US18315347

    申请日：2023-05-10

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Tong Ji ,  Zhe Jin ,  Zhihu Luo ,  Weiliang Zhang

    IPC: H04L1/00 ,  H04L5/00

    CPC classification number: H04L1/001 ,  H04L5/005 ,  H04W88/08

    Abstract: A message transmission method and device relating to the field of communications technologies are described that improve an anti-interference capability in message transmission. The method includes generating a scrambling code according to a scrambling code initialization seed, wherein the scrambling code initialization seed meets the following expression: cinit=R·2α7+P·(nfmodk+1)·2b7 and then scrambling a message according to the scrambling code. The method further includes sending the scrambled message to a terminal on a physical downlink shared channel. Because the first time parameter has different values at at least two different moments, scrambling codes determined at the at least two corresponding different moments are different. Therefore, a possibility at which the base station uses a same scrambling code to scramble a same system message repeatedly in a time period is reduced, so that an anti-interference capability in system message transmission is improved.

    Signal sending device, signal receiving device, symbol timing synchronization method, and system
    19.
    发明授权
    Signal sending device, signal receiving device, symbol timing synchronization method, and system 有权

    公开(公告)号：US11736267B2

    公开(公告)日：2023-08-22

    申请号：US16892691

    申请日：2020-06-04

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Tong Ji ,  Yiling Wu ,  Guangwei Yu ,  Robert William Young ,  Brian Martin Gaffney

    IPC: H04L7/04 ,  H04J11/00 ,  H04J13/00 ,  H04W56/00 ,  H04L27/26 ,  H04W4/70

    CPC classification number: H04L7/041 ,  H04J11/0069 ,  H04J13/0062 ,  H04L27/2662 ,  H04L27/2663 ,  H04W56/00 ,  H04W56/001 ,  H04L27/2657 ,  H04L27/2671 ,  H04W4/70

    Abstract: The present disclosure relates to the field of wireless communications technologies, relates to a signal sending device, a signal receiving device, a symbol timing synchronization method, and a system, and resolves a problem that complexity of symbol timing synchronization performed by a terminal with relatively low crystal oscillator accuracy is high. In a receiving device, a receiving module receives a synchronization signal including a first signal and a second signal. The first signal includes N1 generalized ZC sequences, and the second signal includes N2 generalized ZC sequences. The second signal is used to distinguish different cells or different cell groups. There are at least two generalized ZC sequences with different root indexes in (N1+N2) generalized ZC sequences. A processing module performs a first sliding correlation operation and a second sliding correlation operation on the synchronization signal, and performs symbol timing synchronization according to a relationship between a sliding correlation peak generated when a sliding correlation is performed on the N1 generalized ZC sequences and a sliding correlation peak generated when a sliding correlation is performed on the N2 generalized ZC sequences. This has relatively low implementation complexity, compared with an existing method in which grid search should be performed multiple times to compensate for a relatively large phase rotation.

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