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    METHOD FOR PERFORMING RANDOM ACCESS PROCEDURES AND TERMINAL THEREOF
    5.
    发明申请
    METHOD FOR PERFORMING RANDOM ACCESS PROCEDURES AND TERMINAL THEREOF 有权
    执行随机访问程序及其终端的方法

    公开(公告)号：US20150124679A1

    公开(公告)日：2015-05-07

    申请号：US14591399

    申请日：2015-01-07

    Applicant: OPTIS CELLULAR TECHNOLOGY, LLC

    Inventor： Seung-June YI ,  Sung-Jun PARK ,  Young-Dae LEE ,  Sung-Duck CHUN

    IPC: H04W52/02

    CPC classification number: H04W52/0216 ,  H04W24/00 ,  H04W24/08 ,  H04W72/042 ,  H04W74/002 ,  H04W74/006 ,  H04W74/008 ,  H04W74/0808 ,  H04W74/0833 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/24

    Abstract: A random access procedure between a mobile terminal and a network is performed based upon the characteristics of a RACH preamble. If the RACH preamble was explicitly signaled by the network, a downlink channel is monitored until a new transmission is indicated according to radio resource allocation information received from the network. If the RACH preamble was not explicitly signaled by the network, a contention resolution timer is started and the downlink channel is monitored until the contention resolution timer expires. Such monitoring of downlink channels in a more efficient manner, results in effective reduction in power consumption.

    Abstract translation: 基于RACH前导码的特性，执行移动终端和网络之间的随机接入过程。 如果RACH前导码被网络明确地通知，则监视下行链路信道，直到根据从网络接收到的无线电资源分配信息来指示新的传输。 如果RACH前导码没有被网络明确发出信号，则启动争用解决定时器，并监视下行链路信道直到争用解决定时器到期。 以更有效的方式监视下行链路信道，导致功率消耗的有效降低。

    METHOD AND MOBILE TERMINAL FOR PERFORMING RANDOM ACCESS
    6.
    发明申请
    METHOD AND MOBILE TERMINAL FOR PERFORMING RANDOM ACCESS 有权

    公开(公告)号：US20220174595A1

    公开(公告)日：2022-06-02

    申请号：US17672815

    申请日：2022-02-16

    Applicant: Optis Cellular Technology, LLC

    Inventor： Seung-June YI ,  Sung-Jun PARK ,  Young-Dae LEE ,  Sung-Duck CHUN

    IPC: H04W52/02 ,  H04W24/08 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04W72/10 ,  H04L5/00

    Abstract: A mobile terminal performs a random access procedure with a network that includes transmitting to the network a random access preamble directly allocated to the mobile terminal by the network and receiving a random access response from the network in response to transmission of the random access preamble. The terminal performs a discontinuous reception (DRX) operation that controls how the mobile terminal monitors a physical downlink control channel (PDCCH). The DRX operation employs an active time in which the mobile terminal monitors the PDCCH, and the active time includes a time while: (i) an on-duration timer or a DRX Inactivity timer or a DRX retransmission timer or a contention resolution timer is operating, (ii) a scheduling request procedure is pending, (iii) an uplink grant for a retransmission can occur, or (iv) the PDCCH indicating a new transmission addressed to a Cell-Radio Network Temporary Identifier (C-RNTI) of the mobile terminal has not yet been received after successful reception of the random access response.

    METHOD AND MOBILE TERMINAL FOR PERFORMING RANDOM ACCESS
    7.
    发明申请
    METHOD AND MOBILE TERMINAL FOR PERFORMING RANDOM ACCESS 审中-公开

    公开(公告)号：US20190289544A1

    公开(公告)日：2019-09-19

    申请号：US16427421

    申请日：2019-05-31

    Applicant: Optis Cellular Technology, LLC

    Inventor： Seung-June YI ,  Sung-Jun PARK ,  Young-Dae LEE ,  Sung-Duck CHUN

    IPC: H04W52/02 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04W24/08

    Abstract: A random access procedure between a mobile terminal and a network is performed based upon the characteristics of a RACH preamble transmitted by the terminal. A first type of random access preamble is selectable by the terminal from a set of random access preambles, and a second type of random access preamble is directly allocated to the terminal by the network. The network responds with a random access response. The terminal performs a discontinuous reception (DRX) operation that allows it to monitor a downlink control channel discontinuously. The DRX operation includes an active time period during which the terminal monitors the control channel after successful reception of the random access response for the second type of random access preamble until a transmission from the network addressed to a Cell-Radio Network Temporary Identifier (C-RNTI) associated with the terminal is received.

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