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公开(公告)号：KR1020130142274A
公开(公告)日：2013-12-30
申请号：KR1020120065344
申请日：2012-06-19
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
CPC classification number: H04W36/04
Abstract: The present invention relates to a method for improving transmission performance by enabling a user, who is located in a femto-cell boundary in a macro-cell base station, to select a base station for receiving a service by recognizing the environment of oneself and considering the operation information of nearby base stations in a heterogeneous-cell operation environment where femto-cells are operated in the operation area of a macro-cell base station. A method for a terminal to select a serving base station according to the present invention includes the following steps: a step of receiving operation information, which contains at least one among the number of multi-antennas, used frequency bands, and load status for at least one small base station, from a macro-cell base station; and a step of transmitting a message, which requests a handover to a base station having maximum average transmission capacity by using the operation information, to the macro-cell base station. According to the present invention, a user located on a heterogeneous-cell boundary can request neighboring cell operation information, which includes the number of antennas, frequency resource utilization information, and cell loads, from a serving macro-cell base station, and the serving macro-cell base station can obtain operation information of a corresponding neighboring cell through a backhaul network and provide the operation information for the user. As a result, the user can estimate the average transmission capacity of the serving macro-cell base station and neighboring cell based on the received operation information, and select a base station capable of providing a service with highest quality, therefore, the performance of the user located on the heterogeneous-cell boundary can be improved. [Reference numerals] (410) Service;(420) Preamble signal;(425) Detect neighboring cell ID;(430) Request neighboring cell operation information;(440) Exchange information (wired backhaul network);(450) Neighboring cell information;(455) Calculate transmission capacity;(460) Select target cell;(470) Request handover;(AA) Femto-cell
Abstract translation: 本发明涉及通过使位于宏小区基站中的毫微微小区边界的用户能够通过识别自身的环境来选择用于接收服务的基站来考虑自身的环境来提高传输性能的方法，并且考虑 在宏小区基站的操作区域中操作毫微微小区的异构小区操作环境中的附近基站的操作信息。 根据本发明的终端选择服务基站的方法包括以下步骤：接收包含多个天线数量，使用频带中的至少一个的操作信息的步骤和用于在 至少一个小型基站，来自宏小区基站; 以及通过使用所述操作信息向具有最大平均传输容量的基站请求切换的消息的步骤。 根据本发明，位于异构小区边界上的用户可以从服务宏小区基站请求包括天线数量，频率资源利用信息和小区负载的相邻小区操作信息， 宏小区基站可以通过回程网络获取对应的相邻小区的操作信息，并为用户提供操作信息。 结果，用户可以基于接收到的操作信息来估计服务宏小区基站和相邻小区的平均传输容量，并且选择能够提供最高质量的业务的基站，因此， 可以改善位于异质单元边界上的用户。 （410）服务;（420）前导信号;（425）检测相邻小区ID;（430）请求邻近小区操作信息;（440）交换信息（有线回程网络）;（450）邻居小区信息; （455）计算传输容量;（460）选择目标小区;（470）请求切换;（AA）毫微微小区
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公开(公告)号：KR1020130141941A
公开(公告)日：2013-12-27
申请号：KR1020120065086
申请日：2012-06-18
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
CPC classification number: H04L25/03904 , H04B7/024 , H04L25/0224 , H04W48/20
Abstract: The present invention relates to a method for transmitting a signal by selecting a cell which a base station and a user cooperatively receive a service in an CoMP environment which multi cells service a user by cooperating with each other. The present invention improves a frequency efficiency in case of multi-cell cooperative transmission by selecting a cell which receives a service among service candidate cells according to a channel status of a user by considering a channel quantization error, reduces the channel information feedback amount for multi-cell cooperative transmission and decreases the multi-user scheduling complexity. [Reference numerals] (605) Pilot signal transmission;(607) Channel estimation and quantization error calculation;(609) Channel information feedback base station selection;(611) Base station index and channel direction information feedback;(613) User to service selection and beam weighting factor generation;(615) Data transmission;(AA) Base station 1;(BB) Base station 2;(CC) Base station N;(DD) User U_1;(EE) User U_k;(FF) User U_m
Abstract translation: 本发明涉及一种通过选择基站和用户在多小区通过协作进行多小区服务的CoMP环境中协同接收业务的小区来发送信号的方法。 本发明通过考虑信道量化误差，根据用户的信道状态选择在业务候选小区中接收业务的小区来提高频率效率，减少多个小区的信道反馈量 - 小区协同传输，降低多用户调度复杂度。 （605）导频信号传输;（607）信道估计和量化误差计算;（609）信道信息反馈基站选择;（611）基站索引和信道方向信息反馈;（613）用户服务选择 （615）数据传输;（AA）基站1;（BB）基站2;（CC）基站N;（DD）用户U_1;（EE）用户U_k;（FF）用户U_m
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公开(公告)号：KR1020120097801A
公开(公告)日：2012-09-05
申请号：KR1020110017244
申请日：2011-02-25
Applicant: 서울대학교산학협력단
IPC: G06F12/06
Abstract: PURPOSE: A storage system and operation method are provided to control the storage location of data in a flash memory by modifying a conversion table which defines a logical address and a physical address. CONSTITUTION: A memory cell array includes memory cells. A conversion unit includes candidate conversion tables which define a relationship between the logical and the physical address of a page recognized by a host. An input and output controller creates the address of a target page located in a target block which accesses to the host. The conversion unit provides the physical address of the target page to the memory cell array by extracting the physical address of a target page corresponding to the address of the target page using the conversion table. [Reference numerals] (AA) Host; (BB) Input and output controller; (CC) Address register; (DD) State register; (EE) Command register; (FF) Control logic; (GG) Conversion unit; (HH) Row decoder; (II) Line decoder; (JJ) Memory cell array; (KK) Data register; (LL) Cache register
Abstract translation: 目的：提供存储系统和操作方法，通过修改定义逻辑地址和物理地址的转换表来控制闪存中数据的存储位置。 构成：存储单元阵列包括存储单元。 转换单元包括候选转换表，其定义由主机识别的页面的逻辑地址和物理地址之间的关系。 输入和输出控制器创建位于访问主机的目标块中的目标页面的地址。 转换单元通过使用转换表提取对应于目标页面的地址的目标页面的物理地址来将目标页面的物理地址提供给存储单元阵列。 （附图标记）（AA）主机; （BB）输入输出控制器; （CC）地址寄存器; （DD）国家登记册; （EE）命令寄存器; （FF）控制逻辑; （GG）转换单位; （HH）行解码器; （二）线解码器; （JJ）存储单元阵列; （KK）数据寄存器; （LL）缓存寄存器
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公开(公告)号：KR101030146B1
公开(公告)日：2011-04-18
申请号：KR1020080085146
申请日：2008-08-29
Applicant: 서울대학교산학협력단
CPC classification number: G06F12/0804 , G06F12/0246 , G06F2212/7203
Abstract: 플래시 메모리 기반 저장 장치의 페이지 버퍼를 쓰기 캐시로 이용하는 방법을 제시한다. 플래시 메모리 장치는 읽기, 쓰기 요청 시 임시로 데이터를 저장하기 위한 페이지 버퍼를 포함한다. 제1 쓰기 명령에 대응하는 프로그래밍 동작은 페이지 버퍼에 저장된 데이터를 메모리 셀 어레이로 프로그램한다. 이 때 프로그래밍 동작이 실패할 경우, 플래시 메모리 장치는 제2 쓰기 명령을 수신하고, 제2 쓰기 명령에 대응하는 프로그래밍 동작은 페이지 버퍼에 저장된 데이터를 메모리 셀 어레이로 프로그램한다. 제2 쓰기 명령은 제1 쓰기 명령과 동일한 데이터에 대한 쓰기 명령이므로, 플래시 메모리 장치는 페이지 버퍼에 이미 저장된 데이터를 이용하면 별도의 데이터를 수신하지 않아도 충분하다.
NAND 플래시 메모리, 페이지 버퍼, 쓰기 캐시-
公开(公告)号：KR101868634B1
公开(公告)日：2018-06-19
申请号：KR1020110109571
申请日：2011-10-25
Applicant: 에스케이하이닉스 주식회사 , 서울대학교산학협력단
IPC: H01L21/336 , H01L29/78
CPC classification number: H01L29/66356 , H01L29/7391
Abstract: 본발명은 TFET(Tunneling Field Effect Transistor) 구조를형성함에있어서, 비대칭(Asymmetric)으로형성된소자구현시 수반되는공정을단순화시키는기술을나타낸다. 본발명에따른반도체소자의제조방법은반도체기판상부에도전패턴을형성하는단계와, 도전패턴을마스크로불순물이온을주입하여상기반도체기판내에제 1 접합영역을형성하는단계와, 제 1 접합영역상부에상기도전패턴과평탄화된제 1 절연막을형성하는단계와, 도전패턴상측을식각하여상기제 1 절연막측벽을노출시키는단계와, 도전패턴상부의제 1 절연막측벽에스페이서를형성하는단계와, 스페이서를식각마스크로상기도전패턴을식각하여게이트패턴을형성하는단계와, 게이트패턴을마스크로상기반도체기판내에제 2 접합영역을형성하는단계를포함하는것을특징으로한다.
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Patent Agency Ranking
公开(公告)号：KR1020140100907A
公开(公告)日：2014-08-18
申请号：KR1020140013590
申请日：2014-02-06
Applicant: 서울대학교산학협력단
Abstract: A flash transition layer designing framework for a flash memory is disclosed. The flash transition layer structure according to an embodiment of the present invention comprises a fist log which processes data; a second log which processes information on mapping; and a third log which processes a second log and information on check points. The first log and the second log can correct errors using the information on check points.
Abstract translation: 公开了一种用于闪速存储器的闪存过渡层设计框架。 根据本发明的实施例的闪存过渡层结构包括处理数据的第一日志; 处理映射信息的第二个日志; 以及处理第二个日志的第三个日志和关于检查点的信息。 第一个日志和第二个日志可以使用检查点上的信息来纠正错误。
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公开(公告)号：KR101242195B1
公开(公告)日：2013-03-11
申请号：KR1020110017244
申请日：2011-02-25
Applicant: 서울대학교산학협력단
IPC: G06F12/06
Abstract: 페이지의 물리적 저장 위치의 변경이 가능한 스토리지 시스템 및 상기 스토리지 시스템의 동작 방법이 제공된다. 스토리지 시스템은 호스트에 의해 인식되는 페이지들의 논리적 주소와 물리적 주소와의 관계를 정의하는 복수의 후보 변환 테이블 중 어느 하나를 이용하여 대상 페이지의 물리적 주소를 결정할 수 있다. 스토리지 시스템은 호스트에 의해 인식되는 페이지들의 논리적 주소와 물리적 주소와의 관계를 정의하는 변환 테이블을 수정함으로써 플래시 메모리에서 데이터가 저장되는 위치를 조정할 수 있다.
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公开(公告)号：KR1020100026227A
公开(公告)日：2010-03-10
申请号：KR1020080085146
申请日：2008-08-29
Applicant: 서울대학교산학협력단
CPC classification number: G06F12/0804 , G06F12/0246 , G06F2212/7203
Abstract: PURPOSE: A flash based storage device using a page buffer as a write cache and an utilization method thereof are provided to reduce data transmission frequency between an external host and a flash memory device. CONSTITUTION: A memory cell array(110) includes a plurality of memory cells. A page buffer(120) stores the data which is received from an external host(140) in a data page. A controller(130) controls the page buffer in order to program the stored data page in a first address within the memory cell array. The controller controls the page buffer in order to program the stored data page in a second address within the memory cell array on the basis of a predetermined condition.
Abstract translation: 目的：提供使用页缓冲器作为写缓存的基于闪存的存储装置及其利用方法，以减少外部主机与闪速存储装置之间的数据传输频率。 构成：存储单元阵列（110）包括多个存储单元。 页面缓冲器（120）将从外部主机（140）接收的数据存储在数据页中。 控制器（130）控制页面缓冲器以便将存储的数据页面编程在存储单元阵列内的第一地址中。 控制器控制页面缓冲器，以便基于预定条件将存储的数据页面编程在存储器单元阵列内的第二地址中。
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