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    Device and method for transmitting random access preamble
    2.
    发明授权
    Device and method for transmitting random access preamble 有权

    公开(公告)号：US10306682B2

    公开(公告)日：2019-05-28

    申请号：US15792220

    申请日：2017-10-24

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yingyang Li ,  Yujian Zhang ,  Xiaoqiang Li

    IPC: H04W74/08 ,  H04W72/04 ,  H04W74/00 ,  H04L5/00 ,  H04L5/14 ,  H04J11/00 ,  H04W72/02 ,  H04W88/08

    Abstract: Base Station (BS) and User Equipment (UE) apparatuses for configuring a Random Access CHannel (RACH), and methods thereof, are provided. The method for a BS to configure a RACH includes generating configuration information on RACH resources, transmitting the configuration information on the RACH resources to a UE, receiving a random access preamble multiplexed on a plurality of continuous RACH resources from the UE, extracting the random access preamble multiplexed on the plurality of continuous RACH resources, and detecting the extracted random access preamble. The method for a UE to configure a RACH includes receiving configuration information on RACH resources from a BS, selecting occupied RACH resources among a plurality of continuous RACH resources, generating a random access preamble, multiplexing the generated random access preamble on the selected RACH resources, and transmitting the random access preamble on the selected RACH resources to the BS.

    METHOD FOR PROVIDING NOTIFICATIONS FOR MULTI-MEDIA BROADCAST/MULTICAST SERVICE
    6.
    发明申请
    METHOD FOR PROVIDING NOTIFICATIONS FOR MULTI-MEDIA BROADCAST/MULTICAST SERVICE 审中-公开
    提供多媒体广播/多媒体服务通知的方法

    公开(公告)号：US20160037309A1

    公开(公告)日：2016-02-04

    申请号：US14881861

    申请日：2015-10-13

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Chunying Sun ,  Xiaoqiang Li

    IPC: H04W4/06 ,  H04W72/04

    CPC classification number: H04W4/06 ,  H04L12/189 ,  H04L51/24 ,  H04L51/38 ,  H04W48/12 ,  H04W64/00 ,  H04W68/00 ,  H04W72/005 ,  H04W72/0453 ,  H04W92/12

    Abstract: Disclosed is a method for a multi-media broadcast/multicast service (MBMS) by a radio network controller (RNC), including generating a command for updating an MBMS notification indicator, the command including notification indicator information and a connection frame number, transmitting the command to a base station, and receiving a notification indicator starting at a time based on the connection frame number for a modification period if the modification period is included in the command, wherein the notification indicator information is used to generate the notification indicator.

    Abstract translation: 公开了一种无线网络控制器（RNC）的多媒体广播/组播业务（MBMS）方法，包括生成更新MBMS通知指示符的命令，该命令包括通知指示符信息和连接帧号， 如果修改周期包括在命令中，则基于基站的连接帧号开始的基站接收通知指示，其中通知指示符信息用于生成通知指示符。

    Method and apparatus for transmitting SRS in LTE TDD system
    7.
    发明授权
    Method and apparatus for transmitting SRS in LTE TDD system 有权
    用于在LTE TDD系统中发送SRS的方法和装置

    公开(公告)号：US09160509B2

    公开(公告)日：2015-10-13

    申请号：US14625290

    申请日：2015-02-18

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yingyang Li ,  Xiaoqiang Li

    IPC: H04W72/04 ,  H04L5/00 ,  H04W84/04 ,  H04L5/14 ,  H04B7/26 ,  H04J3/00 ,  H04L5/02

    CPC classification number: H04L5/0048 ,  H04B7/2621 ,  H04J3/00 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0078 ,  H04L5/026 ,  H04L5/04 ,  H04L5/14 ,  H04W72/0406 ,  H04W72/044 ,  H04W72/0446 ,  H04W84/04

    Abstract: A method and apparatus are provided for transmitting and receiving an SRS. The method includes determining a number of single-carrier frequency division multiple access (SC-FDMA) symbols in an uplink pilot time slot (UpPTS); receiving index information for an SRS; determining an SRS offset, based on the index information; and transmitting the SRS, based on the SRS offset. If the index information includes an integer from 0 to 9, if the UpPTS includes two SC-FDMA symbols, a first symbol is indicated by SRS offset 0 and a second symbol is indicated by SRS offset 1, if the UpPTS includes one SC-FDMA symbol, the first symbol is indicated by the SRS offset 1. If the index information includes the integer from 0 to 9, the SRS is transmitted twice in a period of 5 ms and the SRS offset indicated by the index information is based on an offset index table.

    Abstract translation: 提供了用于发送和接收SRS的方法和装置。 该方法包括确定上行链路导频时隙（UpPTS）中的单载波频分多址（SC-FDMA）符号数目; 接收SRS的索引信息; 基于所述索引信息确定SRS偏移; 以及基于SRS偏移发送SRS。 如果索引信息包括从0到9的整数，如果UpPTS包括两个SC-FDMA符号，则第一符号由SRS偏移量0指示，并且第二符号由SRS偏移量1指示，如果UpPTS包括一个SC-FDMA 第一符号由SRS偏移量1表示。如果索引信息包括从0到9的整数，则SRS在5ms的周期内被发送两次，并且由索引信息指示的SRS偏移是基于偏移量 索引表。

    Method and apparatus for transmitting SRS in LTE TDD system
    8.
    发明授权
    Method and apparatus for transmitting SRS in LTE TDD system 有权
    用于在LTE TDD系统中发送SRS的方法和装置

    公开(公告)号：US09025429B2

    公开(公告)日：2015-05-05

    申请号：US14011346

    申请日：2013-08-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yingyang Li ,  Xiaoqiang Li

    IPC: H04W84/04 ,  H04L5/00 ,  H04L5/02

    CPC classification number: H04L5/0048 ,  H04B7/2621 ,  H04J3/00 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0078 ,  H04L5/026 ,  H04L5/04 ,  H04L5/14 ,  H04W72/0406 ,  H04W72/044 ,  H04W72/0446 ,  H04W84/04

    Abstract: A method and apparatus are provided for transmitting an uplink Sounding Reference Signal (SRS) by a User Equipment (UE). The method includes receiving information related to an SRS period and an offset for an SRS transmission; generating the uplink SRS; and when the information indicates the SRS period is 2 ms, transmitting the SRS in two Single Carrier Frequency Division Multiple Access (SCFDMA) symbols in a half frame according to the offset for the SRS transmission. When the information indicates the SRS period is 2 ms and a length of an Uplink Pilot Time Slot (UpPTS) in the half frame is two symbols, a first symbol in the UpPTS is indicated by offset 0 and a second symbol in the UpPTS is indicated by offset 1.

    Abstract translation: 提供了一种用于由用户设备（UE）发送上行探测参考信号（SRS）的方法和装置。 该方法包括接收与SRS周期相关的信息和用于SRS传输的偏移量; 产生上行SRS; 并且当信息指示SRS周期为2ms时，根据SRS传输的偏移量在半帧中的两个单载波频分多址（SCFDMA）符号中发送SRS。 当信息指示SRS周期为2ms时，半帧中的上行导频时隙（UpPTS）的长度为两个符号时，UpPTS中的第一个符号由偏移量0指示，并且指示UpPTS中的第二个符号 按偏移量1。

    Method for updating location information of user equipment
    9.
    发明授权
    Method for updating location information of user equipment 有权
    更新用户设备位置信息的方法

    公开(公告)号：US08625523B2

    公开(公告)日：2014-01-07

    申请号：US13936817

    申请日：2013-07-08

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Hong Wang ,  Lixiang Xu ,  Xiaoqiang Li

    IPC: H04W4/00

    CPC classification number: H04W64/00 ,  H04W8/12 ,  H04W60/04

    Abstract: Methods and apparatus are provided for path switching between an evolved Node B (eNB) and a Mobile Management Entity (MME). The eNB transmits a Path Switch Request message informing that a User Equipment (UE) has changed cells, to the MME. The Path Switch Request message includes an eNB UE S1AP ID, a Tracking Area Identifier (TAI), and cell Identifier (ID). The eNB UE S1AP ID uniquely identifies UE association over an S1 interface within the eNB. The eNB receives a Path Switch Request Acknowledge message including an MME UE S1AP ID and the eNB UE S1AP ID, from the MME. The MME UE S1AP ID uniquely identifies UE association over an S1 interface within the MME. The TAI corresponds to a cell in which the UE is located.

    Abstract translation: 提供了用于演进节点B（eNB）和移动管理实体（MME）之间的路径切换的方法和装置。 eNB向MME发送通知用户设备（UE）已经改变小区的路径切换请求消息。 路径切换请求消息包括eNB UE S1AP ID，跟踪区域标识符（TAI）和小区标识符（ID）。 eNB UE S1AP ID通过eNB内的S1接口唯一地标识UE关联。 eNB从MME接收到包括MME UE S1AP ID和eNB UE S1AP ID的路径切换请求确认消息。 MME UE S1AP ID通过MME内的S1接口唯一地标识UE关联。 TAI对应于UE所在的小区。

    Method for transmitting a sounding reference signal in an LTE TDD system
    10.
    发明授权
    Method for transmitting a sounding reference signal in an LTE TDD system 有权

    公开(公告)号：US10411855B2

    公开(公告)日：2019-09-10

    申请号：US14864253

    申请日：2015-09-24

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yingyang Li ,  Xiaoqiang Li

    IPC: H04L5/00 ,  H04L27/26 ,  H04L5/14

    Abstract: A method and apparatus are provided for transmitting a sounding reference signal (SRS) in a communication system. A method includes receiving an SRS configuration index among 10 SRS configuration indices for a 2 ms SRS periodicity of a time division duplex (TDD) system; identifying, based on the SRS configuration index, the 2 ms SRS periodicity, an uplink-downlink (UL-DL) subframe configuration that is applied in the TDD system, and at least one offset; and transmitting the SRS on at least one single-carrier frequency division multiple access (SC-FDMA) symbol in a radio frame, based on the UL-DL subframe configuration and the at least one offset. The at least one offset indicates a location of the at least one SC-FDMA symbol on which the SRS is transmitted.

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