公开(公告)号：US20170303214A1

公开(公告)日：2017-10-19

申请号：US15512520

申请日：2015-09-11

Applicant: Samsung Electronics Co., Ltd

Inventor： Chiwoo Lim ,  Hyunseok Ryu ,  Seunghoon Park ,  Peng Xue

IPC: H04W52/38 ,  H04W72/12

CPC classification number: H04W52/38 ,  H04W52/367 ,  H04W52/383 ,  H04W72/12 ,  H04W76/23

Abstract: The present invention relates to a 5G or pre-5G communication system which is to be provided to support high data throughput beyond a 4G communication system such as LTE. The communication method for a terminal in a wireless communication system supporting carrier aggregation according to the present invention comprises the steps of: confirming data transmission between different carriers is carried out on the basis of cellular and device-to-device (D2D) communication; reducing the transmission power for a D2D communication-based data transmission to a configured value; and, if no cellular communication-based data transmission occurs during a set time, then restoring the reduced transmission power for the D2D communication-based data transmission.

公开(公告)号：US20170264393A1

公开(公告)日：2017-09-14

申请号：US15511615

申请日：2015-09-15

Applicant: Samsung Electronics Co., Ltd

Inventor： Woomyoung Park ,  Sangmin Kim ,  Chiwoo Lim

IPC: H04L1/00

CPC classification number: H04L1/0054 ,  H03M13/1102 ,  H03M13/1111 ,  H03M13/1191 ,  H03M13/255 ,  H03M13/27 ,  H03M13/2957 ,  H03M13/3746 ,  H03M13/6325 ,  H04L1/005 ,  H04L1/0071 ,  H04L27/14 ,  H04L27/34 ,  H04L27/38

Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided to support a data transmission rate higher than that of a 4-G communication system, such as LTE, and subsequent communication systems. An apparatus according to one embodiment of the present invention can comprise: a first grouping unit for performing repeated decoding by using an outer decoder and an inner decoder, and grouping, in correspondence to a decoding order, a bit stream, which is received from the outer decoder, from a receiver of a system using binary irregular repeat partial accumulate codes to the inner decoder device; an LLR symbol selection unit for calculating indices of grouped bits having the maximum probability value among the grouped bits, and selecting and outputting a predetermined number of grouped bit LLR values by using the indices of the grouped bits having the maximum probability value; an LLR symbol conversion unit for converting the grouped bit LLR values outputted from the LLR symbol selection unit into symbol LLR values, and outputting the same; a Bahl-Cocke-Jelinek-Raviv (BCJR) processing unit for performing a BCJR algorithm operation on the symbol LLR values; a bit LLR calculation unit for converting an output of the BCJR processing unit into bit LLR values; and a second bit grouping unit for grouping the bit LLR values by predetermined bit units.

公开(公告)号：US20160302053A1

公开(公告)日：2016-10-13

申请号：US15038028

申请日：2014-12-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seunghoon Park ,  Hyunseok Ryu ,  Chiwoo Lim

IPC: H04W8/00 ,  H04W56/00 ,  H04W72/04

CPC classification number: H04W56/0025 ,  H04W72/0446 ,  H04W76/14

Abstract: The present invention relates to a scheduling method between terminals for a search resource allocation in direct device to device communication and a device thereof. The present invention relates to, as a search resource allocation method of a terminal which performs device to device (D2D) communication, a proximity searching method and a device thereof, and the method comprises the steps of: transmitting and receiving a signal through a wireless resource determined so as to explicitly or implicitly transmit and receive a contention index of the terminal; selecting a search resource on the basis of a response signal when the response signal is received through the wireless resource; and performing a search for the D2D communication by using the selected search resource.

Abstract translation: 本发明涉及用于直接设备到设备通信中的搜索资源分配的终端之间的调度方法及其装置。 本发明涉及作为执行设备到设备（D2D）通信的终端的搜索资源分配方法，邻近搜索方法及其装置，并且该方法包括以下步骤：通过无线发送和接收信号 确定资源以明确或隐含地发送和接收终端的争用索引; 当通过无线资源接收到响应信号时，基于响应信号选择搜索资源; 以及通过使用所选择的搜索资源来执行对D2D通信的搜索。

公开(公告)号：US09426781B2

公开(公告)日：2016-08-23

申请号：US14097736

申请日：2013-12-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyungkyu Kim ,  Daegyun Kim ,  Seunghoon Park ,  Chiwoo Lim

IPC: H04B7/00 ,  H04W72/02 ,  H04W76/02 ,  H04W8/00

CPC classification number: H04W72/02 ,  H04W8/005 ,  H04W76/14 ,  Y02D70/122 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/26

Abstract: A method and apparatus for exchanging information between devices for use in the pairing process for Device To Device (D2D) communication is provided. A signal transmission/reception method of a device in a mobile communication system includes determining a resource for the device to transmit a pairing signal, transmitting a discovery signal including information on the determined resource, pairing with a neighbor device that received the discovery signal through the resource indicated by the resource information, and communicating data signals with the paired neighbor device. The information exchange method and apparatus for D2D communication is capable of preventing a plurality of devices from attempting pairing on the same frequency simultaneously, thereby improving pairing efficiency and reducing power consumption of the device.

Abstract translation: 提供了一种用于在设备到设备（D2D）通信的配对处理中使用的设备之间交换信息的方法和装置。 移动通信系统中的设备的信号发送/接收方法包括确定用于发送配对信号的设备的资源，发送包括关于所确定的资源的信息的发现信号，通过接收到发现信号的邻居设备配对 由资源信息指示的资源，以及与配对的相邻设备通信数据信号。 用于D2D通信的信息交换方法和装置能够防止多个设备在同一频率上同时尝试配对，从而提高配对效率并降低设备的功耗。

公开(公告)号：US20150230180A1

公开(公告)日：2015-08-13

申请号：US14620109

申请日：2015-02-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chiwoo Lim ,  Hyunseok Ryu ,  Seunghoon Park

IPC: H04W52/02 ,  H04W88/04 ,  H04W76/06 ,  H04W76/02

CPC classification number: H04W52/0235 ,  H04W8/005 ,  H04W76/14 ,  H04W76/23 ,  H04W76/34 ,  H04W88/04 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/21 ,  Y02D70/24

Abstract: Disclosed are a communication method and a terminal for power saving in a UE-relay operation by which power consumption in a device relay is reduced using D2D discovery. The relay communication method of a terminal is provided. The method includes performing relay communication to serve at least one other terminal; performing a device-to-device (D2D) discovery operation to detect a nearby relay terminal during the relay communication; and if the nearby relay terminal that satisfies a predetermined condition is detected as a result of the D2D discovery operation, terminating service to at least the one other terminal.

Abstract translation: 公开了一种在UE中继操作中用于节电的通信方法和终端，通过该终端，使用D2D发现减少了设备中继中的功耗。 提供终端的中继通信方法。 该方法包括执行中继通信以服务于至少一个其他终端; 在所述中继通信期间执行设备到设备（D2D）发现操作以检测附近的中继终端; 并且如果作为D2D发现操作的结果检测到满足预定条件的附近中继终端，则终止至少另一终端的服务。