Method for performing communication by using unlicensed spectrum, device, and system

    公开(公告)号:US10659968B2

    公开(公告)日:2020-05-19

    申请号:US15248430

    申请日:2016-08-26

    Abstract: Embodiments of the present invention disclose a method for performing communication by using an unlicensed spectrum, a device, and a system, which relate to the field of communications technologies, so as to improve efficiency of using an unlicensed spectrum by user equipment. The method includes: obtaining, by a base station eNB, a time resource and/or a frequency resource by contending with another eNB or another system using an unlicensed spectrum; generating, by the base station eNB, information about the time resource and/or the frequency resource according to the time resource and/or the frequency resource; and sending, by the base station eNB, the information about the time resource and/or the frequency resource to user equipment UE by using a broadcast or multicast message, so that the user equipment UE communicates with the base station eNB according to the information about the time resource and/or the frequency resource.

    User Equipment, Base Station, Base Station Access Method, and Radio Link Monitoring Method

    公开(公告)号:US20200045567A1

    公开(公告)日:2020-02-06

    申请号:US16599925

    申请日:2019-10-11

    Abstract: User equipment, a base station, a base station access method, and a radio link monitoring method are provided, where the user equipment includes: a first receiving module, configured to receive first indication information sent by a first base station,where the first indication information includes a time period required by the user equipment to initially request to access a second base station; a first sending module, configured to send the random access scrambling code to the second base station; and a first notification module, configured to: if the user equipment fails to access the second base station within the time period, notify the first base station that a secondary cell group failure occurs. In this application, efficiency of accessing the second base station by the user equipment is improved by limiting a time in which the user equipment requests to access the second base station.

    Method for ensuring parallel data random access and user equipment

    公开(公告)号:US10299217B2

    公开(公告)日:2019-05-21

    申请号:US15424141

    申请日:2017-02-03

    Abstract: A method for ensuring parallel data random access and a user equipment are provided. An embodiment of the present invention includes controlling a random access sequence transmitted by a user equipment through a physical random access channel (PRACH) not to be sent with other uplink transmission in the same subframe, or, when a random access sequence transmitted by a user equipment through a PRACH is sent with other uplink transmission in the same subframe, controlling a priority of power transmission of the PRACH and a priority of power transmission of an uplink channel over which the other uplink transmission is performed, when power is limited.

    UPLINK SYNCHRONIZATION PROCESSING METHOD, USER EQUIPMENT, AND BASE STATION

    公开(公告)号:US20170332337A1

    公开(公告)日:2017-11-16

    申请号:US15663391

    申请日:2017-07-28

    Abstract: An uplink synchronization processing method, a User Equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when determining that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed.

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