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    Random access channel preamble selection
    1.
    发明授权
    Random access channel preamble selection 有权
    随机接入信道前导码选择

    公开(公告)号：US09049729B2

    公开(公告)日：2015-06-02

    申请号：US14295183

    申请日：2014-06-03

    Applicant: LG ELECTRONICS INC.

    Inventor： Dragan Vujcic

    IPC: H04W4/00 ,  H04W74/08 ,  H04W74/00

    CPC classification number: H04W74/0833 ,  H04W74/004 ,  H04W74/0866

    Abstract: The present invention provides a method of selecting a random access preamble in a radio communication system operable at least on a physical layer and a medium access control layer. Random access preambles are divided into at least two groups, the groups depending on at least one of the following: radio conditions and a size of a message to be transmitted by user equipment. The method comprising: (a) the medium access control layer selecting one of the preamble groups; (b) the medium access control layer randomly selecting one random access preamble within the selected group; (c) the medium access control layer signalling the selected random access preamble to the physical layer; and (d) the physical layer generating and transmitting the generated random access preamble.

    Abstract translation: 本发明提供一种在至少可以在物理层和介质访问控制层上操作的无线通信系统中选择随机接入前同步码的方法。 随机接入前导码被划分为至少两组，这些组取决于以下至少之一：无线电条件和由用户设备发送的消息的大小。 所述方法包括：（a）所述介质访问控制层选择所述前同步码组之一; （b）介质访问控制层随机选择所选组内的一个随机接入前同步码; （c）介质访问控制层向所述物理层发信号通知所选择的随机接入前同步码; 和（d）物理层产生和发送所生成的随机接入前同步码。

    Method for setting cyclic shift considering frequency offset
    3.
    发明授权
    Method for setting cyclic shift considering frequency offset 有权
    考虑频率偏移设置循环移位的方法

    公开(公告)号：US08681895B2

    公开(公告)日：2014-03-25

    申请号：US13847987

    申请日：2013-03-20

    Applicant: LG Electronics Inc.

    Inventor： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

    IPC: H04L27/04

    CPC classification number: H04L1/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/22 ,  H04L27/2613 ,  H04L27/2657 ,  H04W56/00

    Abstract: A method for transmitting a random access preamble to a base station includes generating the random access preamble from a Zadoff-Chu (ZC) sequence having a length N, wherein the random access preamble is generated by considering a cyclic shift of the ZC sequence; and transmitting the random access preamble to the base station, wherein the cyclic shift is given by using a variable M corresponding to a Doppler shift of one subcarrier spacing, and wherein parameters associated with defining the cyclic shift are differently defined based on whether the variable M is less than ⅓ of the length N.

    Abstract translation: 用于向基站发送随机接入前导码的方法包括：从具有长度N的Zadoff-Chu（ZC）序列生成随机接入前同步码，其中通过考虑ZC序列的循环移位来生成随机接入前同步码; 以及将所述随机接入前导码发送到所述基站，其中，通过使用与一个子载波间隔的多普勒频移对应的变量M来给出所述循环移位，并且其中与定义所述循环移位相关联的参数基于所述变量M 小于长度N的1/3。

    Methods and procedures for high speed UE access
    4.
    发明授权
    Methods and procedures for high speed UE access 有权
    高速UE接入的方法和程序

    公开(公告)号：US09445437B2

    公开(公告)日：2016-09-13

    申请号：US14480342

    申请日：2014-09-08

    Applicant: LG ELECTRONICS INC.

    Inventor： Dragan Vujcic ,  Yeong Hyeon Kwon

    IPC: H04W74/08 ,  H04W74/00 ,  H04W48/12

    CPC classification number: H04W74/0833 ,  H04J13/0062 ,  H04W48/12 ,  H04W74/004 ,  H04W74/0866

    Abstract: A terminal random access procedure is improved by allowing a mobile terminal to correctly map signature indexes onto cyclic shifted Zadoff-Chu (ZC) sequences when the deployed cells support a high-speed mobility by informing a mobile terminal whether a cell supports high-speed mobility.

    Abstract translation: 通过允许移动终端通过向移动终端通知移动终端小区是否支持高速移动性，通过允许移动终端将签名索引正确地映射到循环移位的Zadoff-Chu（ZC）序列上而被部署的小区支持高速移动性的终端随机接入过程得到改善 。

    RANDOM ACCESS CHANNEL PREAMBLE SELECTION
    6.
    发明申请
    RANDOM ACCESS CHANNEL PREAMBLE SELECTION 有权
    随机访问通道前缀选择

    公开(公告)号：US20140286261A1

    公开(公告)日：2014-09-25

    申请号：US14295183

    申请日：2014-06-03

    Applicant: LG Electronics Inc.

    Inventor： Dragan Vujcic

    IPC: H04W74/08

    CPC classification number: H04W74/0833 ,  H04W74/004 ,  H04W74/0866

    Abstract: The present invention provides a method of selecting a random access preamble in a radio communication system operable at least on a physical layer and a medium access control layer. Random access preambles are divided into at least two groups, the groups depending on at least one of the following: radio conditions and a size of a message to be transmitted by user equipment. The method comprising: (a) the medium access control layer selecting one of the preamble groups; (b) the medium access control layer randomly selecting one random access preamble within the selected group; (c) the medium access control layer signalling the selected random access preamble to the physical layer; and (d) the physical layer generating and transmitting the generated random access preamble.

    Abstract translation: 本发明提供一种在至少可以在物理层和介质访问控制层上操作的无线通信系统中选择随机接入前同步码的方法。 随机接入前导码被划分为至少两组，这些组取决于以下至少之一：无线电条件和由用户设备发送的消息的大小。 所述方法包括：（a）所述介质访问控制层选择所述前同步码组之一; （b）介质访问控制层随机选择所选组内的一个随机接入前同步码; （c）介质访问控制层向所述物理层发信号通知所选择的随机接入前同步码; 和（d）物理层产生和发送所生成的随机接入前同步码。

    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET
    10.
    发明申请
    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET 有权
    设定考虑频率偏移的循环移位的方法

    公开(公告)号：US20130215997A1

    公开(公告)日：2013-08-22

    申请号：US13847987

    申请日：2013-03-20

    Applicant: LG Electronics Inc.

    Inventor： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

    IPC: H04L1/00

    CPC classification number: H04L1/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/22 ,  H04L27/2613 ,  H04L27/2657 ,  H04W56/00

    Abstract: A method for transmitting a random access preamble to a base station includes generating the random access preamble from a Zadoff-Chu (ZC) sequence having a length N, wherein the random access preamble is generated by considering a cyclic shift of the ZC sequence; and transmitting the random access preamble to the base station, wherein the cyclic shift is given by using a variable M corresponding to a Doppler shift of one subcarrier spacing, and wherein parameters associated with defining the cyclic shift are differently defined based on whether the variable M is less than ⅓ of the length N.

    Abstract translation: 用于向基站发送随机接入前导码的方法包括：从具有长度N的Zadoff-Chu（ZC）序列生成随机接入前同步码，其中通过考虑ZC序列的循环移位来生成随机接入前同步码; 以及将所述随机接入前导码发送到所述基站，其中，通过使用与一个子载波间隔的多普勒频移对应的变量M来给出所述循环移位，并且其中与定义所述循环移位相关联的参数基于所述变量M 小于长度N的1/3。

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