公开(公告)号：US11411010B2

公开(公告)日：2022-08-09

申请号：US16865574

申请日：2020-05-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyejin Seong ,  Jisuk Park ,  Sungho Choi

IPC: H01L27/108

Abstract: A semiconductor memory device includes a substrate having a memory cell region, a peripheral region, and a dam region between the memory cell region and the peripheral region, the memory cell region having a rectangular shape according to a top view and having a plurality of active regions defined therein; a plurality of bit line structures extending on the substrate in the memory cell region to be parallel with each other in a first horizontal direction, each including a bit line; a plurality of buried contacts filling lower portions of spaces among the plurality of bit line structures on the substrate; a plurality of landing pads on the plurality of buried contacts; and a dam structure including a first dam structure and a second dam structure in the dam region and being at the same level as the plurality of landing pads.

公开(公告)号：US09814006B2

公开(公告)日：2017-11-07

申请号：US15029414

申请日：2014-10-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junghwa Bae ,  Sungho Choi ,  Mingoo Kim

IPC: H04W56/00 ,  H04W74/08

CPC classification number: H04W56/0005 ,  H04W56/0045 ,  H04W74/0833

Abstract: A signal transmitting/receiving method of a user equipment of a mobile communication system according to an embodiment of the present invention comprises the steps of: transmitting a first random access signal including a first random access preamble to a base station; receiving, from the base station, a first random access response signal including first timing advance (TA) information in response to the first random access signal; transmitting, to the base station, a second random access signal including a second random access preamble based on the state of the user equipment; receiving, from the base station, a second random access response signal including second TA information in response to the second random access signal, when the second random access signal is transmitted to the base station; and transmitting a signal to the base station according to third TA information determined on the basis of at least one of the first TA information and the second TA information. In a random access procedure for initial access to a network by the user equipment according to an embodiment of the present invention, the user equipment transmits, two or more times, an RACH preamble signal to a base station, so that a more accurate TA value can be predicted utilizing TA information from two or more response messages received.

公开(公告)号：US10079801B2

公开(公告)日：2018-09-18

申请号：US14579393

申请日：2014-12-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungho Choi ,  Erik Guttman ,  Rahul Suhas Vaidya

IPC: G06F15/16 ,  H04L29/12 ,  H04W80/04

CPC classification number: H04L61/2015 ,  H04L29/12301 ,  H04L61/2076 ,  H04L61/251 ,  H04W80/04

Abstract: Methods and apparatuses are provided for allocating an internet protocol (IP) address by a packet data network gateway (PGW) in a wireless communication system. A binding update message to request the IP address of a terminal, is received from a serving gateway (SGW). The IP address of the terminal is allocated. A binding acknowledgement message including the IP address is transmitted to the SGW. A dynamic host configuration protocol (DHCP) discover message is received from the SGW. A DHCP offer message including the IP address assigned to the terminal, is transmitted to the SGW.

公开(公告)号：US09521110B2

公开(公告)日：2016-12-13

申请号：US14579376

申请日：2014-12-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungho Choi ,  Erik Guttman ,  Rahul Suhas Vaidya

IPC: G06F15/173 ,  H04L29/12 ,  H04W80/04

CPC classification number: H04L61/2015 ,  H04L29/12301 ,  H04L61/2076 ,  H04L61/251 ,  H04W80/04

Abstract: Methods and apparatuses are provided for releasing an internet protocol (IP) address by a packet data network gateway (PGW) in a mobile communication system. The PGW allocates an IP version 4 (IPv4) address and an IP version 6 (IPv6) address to a terminal to establish a packet data network (PDN) connection between the terminal and the PGW. The PGW identifies a PDN type associated with the PDN connection if an event of releasing the IPv4 address has occurred. The PGW transmits, to a serving gateway (SGW), a binding revocation message, including information indicating release of the IPv4 address, with the PDN connection remaining, if the PDN type is IPv4 and IPv6. The PGW receives a binding revocation acknowledge message in response to the binding revocation request message, from the SGW.

Abstract translation: 提供了用于在移动通信系统中通过分组数据网络网关（PGW）释放因特网协议（IP）地址的方法和装置。 PGW向终端分配IP版本4（IPv4）地址和IP版本6（IPv6）地址，以在终端和PGW之间建立分组数据网络（PDN）连接。 如果发生IPv4地址释放的事件，则PGW识别与PDN连接相关联的PDN类型。 如果PDN类型是IPv4和IPv6，则PGW向服务网关（SGW）发送包括指示IPv4地址释放的信息，剩余PDN连接的绑定撤销消息。 PGW从SGW接收响应于绑定撤销请求消息的绑定撤销确认消息。