Link-state advertisement LSA sending method, apparatus, and system

    公开(公告)号:US11411853B2

    公开(公告)日:2022-08-09

    申请号:US16818606

    申请日:2020-03-13

    Abstract: This application discloses a link-state advertisement LSA sending method, an apparatus, and a system, to reduce a quantity of LSA sending times. The method includes: generating, by a first router, a first path table based on level location information of the first router, level location information of a second router, and level location information of at least one third router; sending, by the first router, a first link state update LSU message to the second router; receiving, by the second router, the first link state update LSU message from the first router; updating, by the second router, a link state database LSDB of the second router based on a first LSA; and sending, by the second router, the first LSA to a router corresponding to an identifier in the first path table.

    Packet processing method and apparatus

    公开(公告)号:US11349754B2

    公开(公告)日:2022-05-31

    申请号:US17002160

    申请日:2020-08-25

    Abstract: The present disclosure provides a packet processing method, including: determining, by a first node, a first packet, where both a packet header and a segment routing header (SRH) of the first packet include a shared SID, the shared SID includes a first address identifier and a first function identifier, the first address identifier is used to identify address information of a terminating node, and the first function identifier is used to identify a same first function that needs to be performed by at least two nodes. If a plurality of nodes need to perform the same first function, the shared SID in the SRH can replace SIDs of all of the plurality of nodes. In this way, SID overheads can be reduced to save bandwidth resources, thereby helping improve system performance.

    SFN indication method, terminal device, and positioning server and system

    公开(公告)号:US10736073B2

    公开(公告)日:2020-08-04

    申请号:US16401973

    申请日:2019-05-02

    Abstract: The present disclosure relates to SFN indication methods, terminal devices, and positioning servers and systems. One example method includes obtaining an SFN offset indication parameter of a cell i, sending the SFN offset indication parameter of the cell i to a terminal device, receiving the SFN offset indication parameter of the cell i from the positioning server, obtaining a frame number of a radio frame n of a cell j, and determining a phase rotation parameter of the cell i based on the frame number of the radio frame n of the cell j and the SFN offset indication parameter of the cell i, or obtaining a sequence initialization factor used by a narrowband positioning reference signal (NPRS) on a radio frame m of the cell i, and obtaining the NPRS on the radio frame m of the cell i based on the sequence initialization factor.

    Signal sending method, signal receiving method, terminal device, base station, and system

    公开(公告)号:US10673668B2

    公开(公告)日:2020-06-02

    申请号:US16029313

    申请日:2018-07-06

    Abstract: An embodiment of the present invention discloses a signal sending method, a signal receiving method, a terminal device, a base station, and a system, to ensure that a signal has a sufficiently large capacity when a PAPR is low, and reduce power consumption of the terminal device. The method in embodiments of the present invention includes: generating, by the terminal device, a first signal; performing, by the terminal device, code division processing on the first signal using a target code division sequence selected from a code division sequence set, to generate a second signal, where any two code division sequences in the code division sequence set meet orthogonality and shift orthogonality; and sending, by the terminal device, the second signal to the base station at a corresponding time-frequency resource location.

    REFERENCE SIGNAL SENDING METHOD, REFERENCE SIGNAL RECEIVING METHOD, AND APPARATUS

    公开(公告)号:US20180034673A1

    公开(公告)日:2018-02-01

    申请号:US15730136

    申请日:2017-10-11

    Abstract: Embodiments of the present invention provide a reference signal sending method, a reference signal receiving method, and an apparatus. A reference signal sending method includes: obtaining a reference signal sequence, where the reference signal sequence includes multiple bits and exclusive OR of every two bits separated by one bit in the multiple bits is 1; performing Gaussian Minimum Shift Keying GMSK modulation on the reference signal sequence; and sending a modulated reference signal sequence. In the embodiments of the present invention, a reference signal sequence is designed as a sequence in which exclusive OR of every two bits separated by one bit is 1, GMSK modulation is performed on the reference signal sequence, and the same reference signal sequence is used to perform channel estimation during GMSK demodulation. Compared with a case in which a pseudo random sequence is used as a pilot symbol, channel estimation accuracy is improved.

    Communication method and related device

    公开(公告)号:US12224934B2

    公开(公告)日:2025-02-11

    申请号:US17411745

    申请日:2021-08-25

    Abstract: This application discloses a communication method and a related device. The communication method includes: A first in-domain device determines an address length, where the “in-domain” refers to being in a local area network. Then, the first in-domain device receives a data packet, and extracts an address from the data packet based on the address length. Further, the first in-domain device forwards the data packet based on the address.

    ROAD INFORMATION IDENTIFICATION METHOD AND APPARATUS, ELECTRONIC DEVICE, VEHICLE, AND MEDIUM

    公开(公告)号:US20240242512A1

    公开(公告)日:2024-07-18

    申请号:US18619091

    申请日:2024-03-27

    CPC classification number: G06V20/588 G06V10/26 G06V10/80 G06V10/82

    Abstract: A road information identification method and apparatus are provided The method includes: receiving road environment data of a plurality of modalities, where a road environment includes an environment of a lane area and an environment of a lane-free area; performing topology parsing based on the road environment data of the plurality of modalities, to obtain a lane-level topology connection relationship of a road, where the lane-level topology connection relationship of the road indicates a mutual location relationship between lanes on the road and a connection status of the lanes; and determining road information of the road based on the lane-level topology connection relationship of the road. An electronic device, a computer-readable storage medium, and a vehicle are further provided.

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