公开(公告)号：US5940434A

公开(公告)日：1999-08-17

申请号：US911398

申请日：1997-08-14

申请人： Dong Wook Lee ,  Hun Lee ,  Myoung Jin Kim

发明人： Dong Wook Lee ,  Hun Lee ,  Myoung Jin Kim

IPC分类号： H04L27/20 ,  H04B1/707 ,  H04B14/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04L27/34

CPC分类号： H04J13/0022 ,  H04B1/707

摘要： In a direct sequence spread spectrum communications system wherein user binary information symbols are spread spectrum modulated and transmitted to the other party, a non-coherent Walsh QPSK and a coherent Walsh QPSK modulation methods, wherein the PN spreading sequences for inphase and quadrature data in a conventional QPSK PN modulation scheme are coded by Walsh sequences indexed by a special rule to reduce the envelope variation of the transmitted signal, can reduce the envelope variation of transmit signal. And, in a direct sequence spread spectrum communications system wherein several user binary information symbols are spread spectrum modulated, the information symbols of each user are covered by user-specified different Walsh codes and transmitted to the other party, a QPSK modulation methods, wherein the polarity of quadrature PN spreading sequence of a user is controlled by a system controller to make the number of users using the quadrature PN sequence equal to that of users using NOT of the sequence, can reduce the envelope variation of transmit signal.

摘要翻译： 在其中用户二进制信息符号被扩频调制并发送给另一方的直接序列扩频通信系统中，非相干沃尔什QPSK和相干沃尔什QPSK调制方法，其中在一个或多个相位中的同相和正交数据的PN扩展序列 传统的QPSK PN调制方案是由特殊规则索引的沃尔什序列编码，以减少发射信号的包络变化，可以减少发射信号的包络变化。 并且，在其中若干用户二进制信息符号被扩频调制的直接序列扩频通信系统中，每个用户的信息符号被用户指定的不同的沃尔什码覆盖并发送给另一方，QPSK调制方法，其中 用户的正交PN扩展序列的极性由系统控制器控制，使得使用正交PN序列的用户的数量等于使用NOT的序列的用户的数量，可以减少发送信号的包络变化。

公开(公告)号：US5781861A

公开(公告)日：1998-07-14

申请号：US709842

申请日：1996-09-10

申请人： Chang-Soon Kang ,  Seon-Ho Hwang ,  Young-Nam Han ,  Myoung-Jin Kim ,  Hun Lee

发明人： Chang-Soon Kang ,  Seon-Ho Hwang ,  Young-Nam Han ,  Myoung-Jin Kim ,  Hun Lee

IPC分类号： H04B1/707 ,  H04W16/06 ,  H04W36/18 ,  H04B7/26

CPC分类号： H04W16/06 ,  H04W36/18

摘要： A method for shedding traffic load in a code division multiple access mobile communication system, the method performing a soft handoff operation using the ratio of the received forward link pilot signal power to the sum of all interference signals power to transfer a portion of traffic load in the present serving cell with a high traffic density to an adjacent cell with a low traffic density. When the amount of traffic load in the present serving cell is increased and thus exceeds a link capacity of the present serving cell, handoff parameters of all mobile stations in the present serving cell can be updated on the basis of a power allocation state managed by a base station without reducing the coverage of a forward link. On the basis of the updated handoff parameters, the soft handoff operation is performed from a part of the mobile stations in the present serving cell with the high traffic density (for example, mobile stations at the edge of the present serving cell) to the adjacent cell with the low traffic density. Therefore, the excessive traffic load amount in the present serving cell can effectively be shed.

摘要翻译： 一种用于在码分多址移动通信系统中消除业务负载的方法，所述方法使用所接收的前向链路导频信号功率与所有干扰信号之和的比率来执行软切换操作，以将部分业务负载传输到 具有低业务密度的相邻小区的具有高业务密度的当前服务小区。 当当前服务小区中的业务负载量增加并且因此超过当前服务小区的链路容量时，可以基于由服务小区管理的功率分配状态来更新当前服务小区中的所有移动站的切换参数 基站，而不减少前向链路的覆盖。 基于更新的切换参数，从具有高业务密度的当前服务小区中的一部分移动站（例如，当前服务小区边缘的移动站）到相邻的处理单元执行软越区切换操作 交通密度低的小区。 因此，可以有效地减轻当前服务小区中的过量业务负载量。

公开(公告)号：US06411645B1

公开(公告)日：2002-06-25

申请号：US09137076

申请日：1998-08-20

申请人： Dong Wook Lee ,  Hun Lee

发明人： Dong Wook Lee ,  Hun Lee

IPC分类号： H04L2730

CPC分类号： H04L5/026

摘要： The present invention relates to a signal modulation apparatus of multicarrier direct sequence spread spectrum communication system. There was a problem that since multiple carrier having different frequencies are modulated by a baseband signal and the results are added to be transmitted, the enveloped variation of transmitted signal is very large. A modulation apparatus of multicarrier direct sequence spread spectrum system is suggested to solve such problems, which can reduce the enveloped variation of transmitted signal by inverting the polarity of baseband signal which modulates one of four carriers in the case when the same baseband signal is used to modulate the multiple carriers and by inverting the plurality of one of two Walsh code pairs having two adjacent indexes by using the characteristics of Walsh function in case when different baseband signals should be used to modulate four carriers.

摘要翻译： 本发明涉及多载波直接序列扩频通信系统的信号调制装置。 存在由于具有不同频率的多个载波被基带信号调制并且将结果相加以被发送的问题，所传输的信号的包络变化非常大。 提出了一种多载波直接序列扩频系统的调制装置来解决这种问题，通过在使用相同的基带信号的情况下，通过反转调制四个载波中的一个的基带信号的极性，可以减少发射信号的包络变化 在使用不同的基带信号来调制四个载波的情况下，通过使用沃尔什函数的特征来调制多个载波并反转具有两个相邻索引的两个沃尔什码对中的一个。

公开(公告)号：US06175736B1

公开(公告)日：2001-01-16

申请号：US09159062

申请日：1998-09-23

申请人： Dong Wook Lee ,  Hun Lee

发明人： Dong Wook Lee ,  Hun Lee

IPC分类号： H04Q720

CPC分类号： H04W36/18 ,  H04W52/04 ,  H04W52/40

摘要： A system for providing a power-efficient soft handoff in a multicarrier CDMA cellular system includes: a determining device for determining a time point when a user of a mobile station executes a handoff operation from one base station to an adjacent base station thereto, during the user communicates with another system's user through the one base station; a providing device for providing handoff request information inclusive of information of the adjacent base station; a base station control device for commanding the one base station and the adjacent base station to transmit stop of information of the another system's user, with non-assigned carrier and for commanding the adjacent base station to transmit start the information of the another system's user, with assigned carrier, in accordance with the hand off request information received through the one base station by the mobile station's user; a base station transmission device for transmitting the information of the another system's user only with the assigned carrier, in accordance with the assignment of carrier of the base station control device; and a receiving device of the mobile station's user for combining and demodulating received signals having different frequencies from the one base station and the adjacent base station.

摘要翻译： 一种用于在多载波CDMA蜂窝系统中提供功率有效的软切换的系统包括：确定装置，用于当所述移动台的用户执行从一个基站到相邻基站的切换操作时确定时间点， 用户通过一个基站与另一个系统的用户进行通信; 用于提供切换请求信息的提供装置，包括相邻基站的信息; 基站控制装置，用于指令一个基站和相邻的基站用未分配的载波发送另一个系统用户的信息的停止，并且用于命令相邻基站发送另一个系统的用户的信息， 具有分配的载波，根据移动台的用户通过一个基站接收的切换请求信息; 基站发送装置，用于根据基站控制装置的载波的分配，向所分配的载波发送另一个系统用户的信息; 以及移动台用户的接收装置，用于从一个基站和相邻基站组合和解调具有不同频率的接收信号。

公开(公告)号：US06341140B1

公开(公告)日：2002-01-22

申请号：US09132713

申请日：1998-08-12

申请人： Dong Wook Lee ,  Hun Lee

发明人： Dong Wook Lee ,  Hun Lee

IPC分类号： H04L2730

CPC分类号： H04L27/2655 ,  H04B1/7075 ,  H04L27/2675

摘要： A code synchronization apparatus in a multi-carrier direct sequence spread spectrum communication system and method thereof are disclosed. The purpose of the present invention is to solve the problems that when using the conventional code synchronization apparatus used in a single carrier system, the time necessary for synchronization as well as the complexity of the system are increased. To do this, the present invention discloses a code synchronization apparatus in a multi-carrier direct sequence spread spectrum communication system and method thereof which are capable of obtaining a stabilized code synchronization, using a code synchronization method suitable to the situation to adjust the symbol combining gain and the symbol integration period adaptively to the channel situation.

摘要翻译： 公开了一种多载波直接序列扩频通信系统中的码同步装置及其方法。 本发明的目的是解决当使用单载波系统中使用的常规码同步装置时，同步所需的时间以及系统的复杂度增加的问题。 为此，本发明公开了一种多载波直接序列扩频通信系统及其方法中的码同步装置，其能够使用适合于该情况的码同步方法来获得稳定的码同步，从而调整码元的组合 增益和符号整合周期适应频道情况。

公开(公告)号：US20080036054A1

公开(公告)日：2008-02-14

申请号：US11844914

申请日：2007-08-24

申请人： David Chong ,  Hun Lee

发明人： David Chong ,  Hun Lee

IPC分类号： H01L23/495

CPC分类号： H01L23/49562 ,  H01L24/45 ,  H01L24/48 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48465 ,  H01L2924/01013 ,  H01L2924/01029 ,  H01L2924/01079 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/30107 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A package system for integrated circuit (IC) chips and a method for making such a package system. The method uses a solder-ball flip-chip method for connecting the IC chips onto a lead frame that has pre-formed gull-wing leads only on the source/gate side of the chip. A boschman molding technique is used for the encapsulation process, leaving exposed land and die bottoms for a direct connection to a circuit board. The resulting packaged IC chip has the source of the chip directly connected to the lead frame by solder balls. As well, the drain and gate of the chip are directly mounted to the circuit board without the need for leads from the drain side of the chip.

摘要翻译： 用于集成电路（IC）芯片的封装系统和用于制造这种封装系统的方法。 该方法使用焊球倒装芯片方法将IC芯片连接到仅在芯片的源极/栅极侧具有预形成的鸥翼引线的引线框架上。 使用玻璃铸造技术进行封装工艺，留下暴露的焊盘和模具底部以直接连接到电路板。 所得到的封装IC芯片的芯片源头通过焊球直接连接到引线框架。 同样，芯片的漏极和栅极直接安装到电路板，而不需要来自芯片的漏极侧的引线。

公开(公告)号：US20070034867A1

公开(公告)日：2007-02-15

申请号：US11501976

申请日：2006-08-09

申请人： Hun Lee ,  Sang Park ,  Min Suh

发明人： Hun Lee ,  Sang Park ,  Min Suh

IPC分类号： H01L29/08 ,  G09G3/36

CPC分类号： H01L51/105 ,  H01L27/3244 ,  H01L51/002 ,  H01L51/0541 ,  H01L51/0545

摘要： An organic thin film transistor and a flat panel display device using the same are disclosed. The organic thin film transistor includes an inorganic layer doped with an impurity in a region of the outer surfaces of source and drain electrodes, or the source and drain electrodes is formed by an inorganic material doped with an impurity. According to the organic thin film transistor, an energy barrier is generated when contact between the organic semiconductor and the source and drain electrodes is removed to form an ohmic contact.

摘要翻译： 公开了一种有机薄膜晶体管和使用其的平板显示装置。 有机薄膜晶体管包括在源极和漏极的外表面的区域中掺杂有杂质的无机层，或者源极和漏极由掺杂有杂质的无机材料形成。 根据有机薄膜晶体管，当除去有机半导体和源极和漏极之间的接触以形成欧姆接触时，产生能量势垒。

公开(公告)号：US20050094599A1

公开(公告)日：2005-05-05

申请号：US10922758

申请日：2004-08-19

申请人： Jae Ryu ,  Won Ryu ,  Hun Lee

发明人： Jae Ryu ,  Won Ryu ,  Hun Lee

IPC分类号： H04W36/38 ,  H04B7/26 ,  H04L12/701 ,  H04W36/14 ,  H04W40/34 ,  H04Q7/00

CPC分类号： H04W36/0066 ,  H04W36/0016

摘要： A method for handoff between packet data serving nodes (PDSNs) The method for handoff between packet data serving nodes (PDSNs) provides packet services to a mobile node. A new PDSN receives subscriber information of a mobile node from at least one or more old PDSNs forming a communications network. The new PDSN recognizes the mobile node moving into a concerned area of the new PDSN and then transmits recognition information on the mobile node to an old PDSN to which the mobile node was connected. All received information on the mobile node is transmitted by the old PDSN based on the recognition information. A communication channel is established with the mobile node based on the received information. In the method, handoff is performed without reestablishing PPP. Accordingly, handoff between PDSNs can be performed faster, reducing the time needed for establishing a PPP session with a terminal and for terminating a previously set up PPP session.

摘要翻译： 分组数据服务节点（PDSN）之间切换的方法分组数据服务节点（PDSN）之间切换的方法向移动节点提供分组服务。 新的PDSN从形成通信网络的至少一个或多个旧PDSN接收移动节点的用户信息。 新的PDSN识别移动节点移动到新PDSN的相关区域中，然后将移动节点上的识别信息发送到移动节点所连接的旧PDSN。 所有接收到的移动节点的信息都由旧的PDSN基于识别信息传输。 基于接收到的信息，与移动节点建立通信信道。 在该方法中，无需重新建立PPP即可进行切换。 因此，可以更快地执行PDSN之间的切换，从而减少与终端建立PPP会话所需的时间并且终止先前建立的PPP会话。

公开(公告)号：US06198936B1

公开(公告)日：2001-03-06

申请号：US09143218

申请日：1998-08-28

申请人： Soon Sung Yang ,  Pyung Jung Song ,  Kyoung Joon Lee ,  Hun Lee

发明人： Soon Sung Yang ,  Pyung Jung Song ,  Kyoung Joon Lee ,  Hun Lee

IPC分类号： H04B700

CPC分类号： H04W74/004 ,  H04B7/2612 ,  H04W24/00 ,  H04W28/06

摘要： The present invention relates to a method for transmitting and receiving informations of control plane using MAC frame structure in order to transmit user data through associated control channel so that the radio resource formed between a mobile station and a base station can be used efficiently, in the case that the third generation mobile communication system which needs large scale control information necessarily uses out-of-band signal method for providing various services. The method for transmitting and receiving information between mobile station and base station of mobile communication system using an associated channel comprise the steps of receiving information from user plane and control plane, constructing a frame, and transmitting the frame which is pointed out by the plane determined by the corresponding information after analyzing the information (step 1); and analyzing the frame after receiving the information through the associated channel and receiving the information using the plane corresponding to the frame (step 2).

摘要翻译： 本发明涉及一种使用MAC帧结构发送和接收控制平面的信息的方法，以便通过相关联的控制信道发送用户数据，使得可以有效地使用在移动台和基站之间形成的无线电资源， 需要大规模控制信息的第三代移动通信系统必须使用带外信号方法来提供各种业务。 使用相关信道在移动通信系统的移动站与基站之间发送和接收信息的方法包括以下步骤：从用户平面和控制平面接收信息，构建帧，并发送所确定的平面指出的帧 分析信息后的相应信息（步骤1）; 并且在通过相关联的信道接收到信息并且使用与该帧相对应的平面接收信息来分析该帧（步骤2）。

公开(公告)号：US6038220A

公开(公告)日：2000-03-14

申请号：US961326

申请日：1997-10-30

申请人： Chang Soon Kang ,  Hun Lee ,  Cheol Hoi Cho ,  Ki Seok Kim

发明人： Chang Soon Kang ,  Hun Lee ,  Cheol Hoi Cho ,  Ki Seok Kim

IPC分类号： H04B1/04 ,  H04B7/005 ,  H04B7/12 ,  H04B7/26 ,  H04J13/00 ,  H04W52/04 ,  H04W52/24 ,  H04W52/34 ,  H04W52/36 ,  H04W84/14 ,  H04J1/16 ,  H04B1/00 ,  H04B7/00

CPC分类号： H04W52/343 ,  H04W52/24 ,  H04W52/346 ,  H04W84/14 ,  Y02B60/50

摘要： The present invention relates to a method and apparatus of a forward traffic channel power control for a code division multiple access (CDMA) wireless local loop system not having a hand-off function. The present invention distinguishes between a normal mode and a threshold mode in a CDMA wireless local loop. Here, the total power is lower than a predetermined power threshold value in the normal mode, and the total power arrives at the predetermined power threshold value in the threshold mode. In addition, the present invention varies method of increasing/reducing the forward traffic channel power according to the determined mode. As a result, method and apparatus according to the present invention effectively reduces the forward link interference signal at nearby cells, and provides a proper traffic quality.

摘要翻译： 本发明涉及一种不具有切换功能的码分多址（CDMA）无线本地环路系统的前向业务信道功率控制的方法和装置。 本发明在CDMA无线本地环路中区分正常模式和阈值模式。 这里，总功率低于正常模式下的预定功率阈值，并且总功率在阈值模式下达到预定功率阈值。 此外，本发明根据所确定的模式改变增加/减少前向业务信道功率的方法。 结果，根据本发明的方法和装置有效地减少了附近小区的前向链路干扰信号，并且提供了适当的业务质量。