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    Handover method and apparatus in wireless communication system
    42.
    发明授权
    Handover method and apparatus in wireless communication system 有权
    无线通信系统中的切换方法和装置

    公开(公告)号：US09392510B2

    公开(公告)日：2016-07-12

    申请号：US14360047

    申请日：2013-01-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jae Hyuk Jang ,  Himke Van Der Velde ,  Kyeong In Jeong

    IPC: H04M1/66 ,  H04W36/00 ,  H04W12/10 ,  H04W12/02 ,  H04W36/04 ,  H04W84/04

    CPC classification number: H04W36/0083 ,  H04W12/02 ,  H04W12/10 ,  H04W36/0055 ,  H04W36/04 ,  H04W84/045 ,  Y02D70/124 ,  Y02D70/126

    Abstract: The present disclosure provides a method for correcting an error caused by Hyper Frame Number (HFN) and Packet Data Convergence Protocol Sequence Number (PDCP SN) mismatch between a user equipment and base station when the user equipment fails in handover between cells in a wireless communication system. In addition, the present disclosure provides a handover procedure for a user equipment performing handover from a macro cell to a Closed Subscriber Group (CSG) cell shared by multiple operators in a wireless communication system. The present disclosure enables a user equipment and base station to perform communication without a malfunction after handover failure. For handover from a macro cell to a CSG cell shared by multiple operators, the present disclosure enables a user equipment to perform handover to an accessible cell.

    Abstract translation: 本公开提供了一种用于在用户设备在无线通信中的小区之间的切换失败时用于校正由用户设备和基站之间的超帧数（HFN）和分组数据收敛协议序列号（PDCP SN）的不匹配引起的错误的方法 系统。 此外，本公开提供了一种用于在无线通信系统中由多个运营商共享的从宏小区到封闭用户组（CSG）小区执行切换的用户设备的切换过程。 本公开使得用户设备和基站在切换失败之后无故障地执行通信。 对于从宏小区到由多个运营商共享的CSG小区的切换，本公开使得用户设备能够执行到可访问小区的切换。

    METHOD AND APPARATUS FOR CONTROLLING UPLINK TRANSMISSION POWER OF USER EQUIPMENT
    44.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING UPLINK TRANSMISSION POWER OF USER EQUIPMENT 有权
    用于控制用户设备上行传输功率的方法和装置

    公开(公告)号：US20150072690A1

    公开(公告)日：2015-03-12

    申请号：US14385490

    申请日：2013-03-13

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sang Bum Kim ,  Soeng Hun Kim ,  Jae Hyuk Jang ,  Kyeong In Jeong

    IPC: H04W36/00 ,  H04W52/14 ,  H04W52/24

    CPC classification number: H04W36/0072 ,  H04W36/0094 ,  H04W52/146 ,  H04W52/242 ,  H04W52/244 ,  H04W88/08

    Abstract: The present invention relates to a method and an apparatus for reducing the amount of interference power in a heterogeneous network environment by controlling uplink transmission power of user equipment. The method for a serving base station controlling uplink transmission power includes: receiving from the user equipment a signal measurement report with respect to a first neighboring base station, which transmits the strongest signal to the user equipment; transmitting to the user equipment a control signal including a path loss value, which is to be used for calculating the uplink transmission power; transmitting to the user equipment and the first neighboring base station scheduling information with respect to the user equipment; and receiving from the first neighboring base station an uplink signal of the user equipment which the first neighboring base station has received. The present invention can adjust uplink transmission power based on a small base station close to the user equipment, and enables the small base station to receive uplink signal of the user equipment and forward it to the macro base station, thereby maintaining a Qos of the user equipment and minimizing the amount of interference power affecting another cell.

    Abstract translation: 本发明涉及通过控制用户设备的上行传输功率来减少异构网络环境中的干扰功率的方法和装置。 控制上行链路传输功率的服务基站的方法包括：从用户设备接收相对于第一相邻基站的信号测量报告，该第一相邻基站将最强信号发送给用户设备; 向所述用户设备发送包括用于计算所述上行链路发送功率的路径损耗值的控制信号; 向所述用户设备和所述第一相邻基站发送相对于所述用户设备的调度信息; 以及从所述第一相邻基站接收所述第一相邻基站已经接收的所述用户设备的上行链路信号。 本发明可以基于靠近用户设备的小型基站来调整上行发送功率，并且能够使小型基站接收用户设备的上行链路信号并将其转发到宏基站，从而维持用户的Qos 设备和最小化影响另一个电池的干扰电力的数量。

    METHOD AND APPARATUS FOR CELL SELECTION IN A WIRELESS COMMUNICATION SYSTEM
    45.
    发明申请
    METHOD AND APPARATUS FOR CELL SELECTION IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中细胞选择的方法和装置

    公开(公告)号：US20140179320A1

    公开(公告)日：2014-06-26

    申请号：US14116217

    申请日：2012-05-10

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Jae Hyuk Jang ,  Soeng Hun Kim

    IPC: H04W36/30

    CPC classification number: H04W36/30 ,  H04W48/20

    Abstract: The present invention relates to a method for cell selection in a wireless communication system. The method for cell selection by a terminal according to one embodiment of the present invention may comprise the following steps: measuring the channel quality of a first cell; measuring the channel quality of a second cell; determining whether the value obtained by applying an offset to the result of the measurement of the channel quality of the second cell is better than the result of the measurement of the channel quality of the first cell; if the value obtained by applying an offset to the result of the measurement of the channel quality of the second cell is better than the result of the measurement of the channel quality of the first cell, determining whether the value obtained by applying no offset to the result of the measurement of the channel quality of the second cell is better than a preset reference value; and, if the value obtained by applying no offset to the result of the measurement of the channel quality of the second cell is better than the preset reference value, selecting the second cell. According to one embodiment of the present invention, an operable cell can be selected to prevent malfunctions, and interference from a CSG cell may be reduced.

    Abstract translation: 本发明涉及无线通信系统中小区选择的方法。 根据本发明的一个实施例的终端的小区选择方法可以包括以下步骤：测量第一小区的信道质量; 测量第二小区的信道质量; 确定通过对所述第二小区的信道质量的测量结果应用偏移而获得的值是否优于所述第一小区的信道质量的测量结果; 如果通过对第二小区的信道质量的测量结果应用偏移而获得的值优于第一小区的信道质量的测量结果，则确定是否对 第二单元的通道质量的测量结果优于预设的参考值; 并且如果通过对第二小区的信道质量的测量结果不施加偏移而获得的值优于预设的参考值，则选择第二小区。 根据本发明的一个实施例，可以选择可操作的小区来防止故障，并且可以减少来自CSG小区的干扰。

    METHOD AND APPARATUS FOR APPLYING A TIME ALIGNMENT TIMER IN A WIRELESS COMMUNICATION SYSTEM USING A CARRIER AGGREGATION TECHNIQUE
    46.
    发明申请
    METHOD AND APPARATUS FOR APPLYING A TIME ALIGNMENT TIMER IN A WIRELESS COMMUNICATION SYSTEM USING A CARRIER AGGREGATION TECHNIQUE 有权
    使用载波聚合技术在无线通信系统中应用时间对准定时器的方法和装置

    公开(公告)号：US20140092812A1

    公开(公告)日：2014-04-03

    申请号：US14116586

    申请日：2012-05-10

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jae Hyuk Jang ,  Soeng Hun Kim ,  Kyeong In Jeong ,  Boon Loong Ng ,  Gert-Jan Van Lieshout

    IPC: H04W56/00 ,  H04W74/08

    CPC classification number: H04W56/001 ,  H04W36/04 ,  H04W48/12 ,  H04W56/0005 ,  H04W56/0045 ,  H04W64/00 ,  H04W74/0833 ,  Y02D70/126 ,  Y02D70/20

    Abstract: Operation of a terminal for determining which time alignment timer is applied to a certain condition when specific timers operate for each carrier-wave group in the event a wireless communication system using carrier aggregation techniques. A terminal performs communication without malfunctions using a timer suitable for a certain condition. The terminal operates the timer by receiving, from a base station, a message including a timing advance command and an index on a timing advance group (TAG), operating the timer for the TAG, the index has a value of 00 when the TAG includes a first cell. A terminal operates a timer by operating a first timer for a TAG including a first cell, operating a second timer upon receipt of a timing advance command for a second TAG that does not include the first cell, and, if the first timer has expired, deeming the second timer to also be expired.

    Abstract translation: 在使用载波聚合技术的无线通信系统的情况下，当针对每个载波组进行特定的定时器操作时，用于确定哪个时间对准定时器被应用于特定条件的终端的操作。 终端使用适合于特定条件的定时器进行无故障的通信。 终端通过从基站接收包括定时提前命令和定时提前组（TAG）上的索引的消息来操作定时器，操作TAG的定时器，当TAG包括时，索引值为00 第一个单元格 终端通过操作包括第一小区的TAG的第一定时器来操作定时器，在接收到不包括第一小区的第二TAG的定时提前命令时操作第二定时器，并且如果第一定时器已经到期， 认为第二个定时器也要过期。

    Method and apparatus for transmitting a buffer status report in a wireless communication system
    50.
    再颁专利
    Method and apparatus for transmitting a buffer status report in a wireless communication system 有权

    公开(公告)号：USRE48768E1

    公开(公告)日：2021-10-05

    申请号：US16678580

    申请日：2019-11-08

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jae Hyuk Jang ,  Soeng Hun Kim

    IPC: H04L12/26 ,  H04W72/12 ,  H04W24/10 ,  H04L12/24

    Abstract: The present disclosure proposes a method for transmitting a buffer status report informing of the data to be transmit in uplink. The method for transmitting buffer status report of a terminal in a wireless communication system includes checking, when allocating uplink resource for new data transmission, whether first buffer status report triggered but not cancelled exists, generating, when the first buffer status report exists, uplink data including the buffer status report, checking whether second buffer status report triggered but not cancelled exist except for the buffers status report included in the uplink data, and determining whether to cancel the second buffer status report depending on whether the first buffer status report is a regular buffer status report or periodic buffer status report. With the proposed method, the terminal is capable of transmitting the padding BSR without extra cancellation operation, resulting in reduction terminal's operation complexity.

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