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    • 21. 发明授权
    • Apparatus and method for performing adaptive channel estimation in a mobile communication system
    • 一种用于在移动通信系统中执行自适应信道估计的装置和方法
    • US07376210B2
    • 2008-05-20
    • US10614078
    • 2003-07-08
    • Hun-Kee KimGin-Kyu CholYong-Suk MoonNoh-Sun Kim
    • Hun-Kee KimGin-Kyu CholYong-Suk MoonNoh-Sun Kim
    • H04B1/10
    • H04L25/021H04L25/0202H04L25/0206H04L25/0208
    • Disclosed is an adaptive channel estimator for improving a performance of a general channel estimator in a mobile communication system, and a method for controlling the same. The adaptive channel estimator further detects a noise level of a channel and a channel speed, and implements an optimum noise elimination filter on the basis of the detected noise level and channel speed. A comparison between mapping degrees predetermined by the detected noise level and channel speed allows an optimum noise elimination filter to be implemented, If such a channel estimator is implemented, then optimum packet data transmission is available for not only a low-speed channel but also a high-speed channel. A channel compensation caused by a difference between a spreading factor (SF) of a pilot channel and a spreading factor (SF) of a data channel can be compensated on the condition that a slope compensator executed by a SF ratio is controlled by a filter coefficient controller.
    • 公开了一种用于改善移动通信系统中的通用信道估计器的性能的自适应信道估计器及其控制方法。 自适应信道估计器还检测信道的噪声电平和信道速度,并且基于检测到的噪声电平和信道速度来实现最佳噪声消除滤波器。 通过检测到的噪声电平和通道速度预定的映射度之间的比较允许实现最佳噪声消除滤波器。如果实现了这种信道估计器,则最佳分组数据传输不仅可用于低速信道,而且可用于低速信道 高速通道。 由导频信道的扩展因子(SF)与数据信道的扩展因子(SF)之间的差导致的信道补偿可以在由SF比执行的斜率补偿器由滤波器系数 控制器。
    • 23. 发明申请
    • Apparatus and method for connecting call in mobile terminal
    • 用于在移动终端中连接呼叫的装置和方法
    • US20070191010A1
    • 2007-08-16
    • US11698307
    • 2007-01-25
    • Noh-Sun KimYong-Suk MoonYu-Shin Kim
    • Noh-Sun KimYong-Suk MoonYu-Shin Kim
    • H04Q7/20
    • H04W76/18H04W48/20
    • Provided is an apparatus and method for preventing successive failures in a call connection in a mobile communication terminal. When a call connection is attempted, a cell with the highest RX power is selected among cells and an RRC Connection Request message is transmitted from the mobile terminal to a BS of the selected cell. It is determined whether the mobile terminal receives an RRC Connection Accept/Reject message from the BS. If the mobile terminal receives an RRC Connection Reject message from the BS of the selected cell, it is determined whether the selected cell is able to perform the RRC connection by detecting a Connection Reject message frequency that is the number of times of rejection of an RRC connection request for a predetermined period. If the selected cell is not able to perform the RRC connection, a neighboring cell is reselected and an RRC Connection Request message is transmitted to the reselected neighboring cell.
    • 提供了一种用于防止移动通信终端中的呼叫连接中的连续故障的装置和方法。 当尝试呼叫连接时,在小区中选择具有最高RX功率的小区,并且从移动终端向所选小区的BS发送RRC连接请求消息。 确定移动终端是否从BS接收到RRC连接接受/拒绝消息。 如果移动终端从所选小区的BS接收到RRC连接拒绝消息,则通过检测作为RRC拒绝的次数的连接拒绝消息频率来确定所选小区是否能够执行RRC连接 连接请求一段预定时间。 如果所选择的小区不能执行RRC连接,则重新选择相邻小区,并且向重选的相邻小区发送RRC连接请求消息。
    • 24. 发明申请
    • De-rate matching method and apparatus in a high speed downlink packet access system
    • 高速下行链路分组接入系统中的去速率匹配方法和装置
    • US20050201283A1
    • 2005-09-15
    • US11066551
    • 2005-02-28
    • Su-Jin YoonHoon-Geun SongDong-Wook ParkGin-Kyu ChoiYong-Suk Moon
    • Su-Jin YoonHoon-Geun SongDong-Wook ParkGin-Kyu ChoiYong-Suk Moon
    • H04L1/00
    • H04B1/707H04B2201/70705H04B2201/70722H04L1/0067H04L1/1819H04L1/1845
    • A de-rate matching method and apparatus in a High Speed Downlink Packet Access (HSDPA) system are provided. In the de-rate matching apparatus and method, a collection buffer temporarily stores a received packet, a combining buffer stores the packet received from the collection buffer according to predetermined memory address information including information indicating the positions of bits punctured during the rate matching, a controller decodes high-speed shared common control channel (HS-SCCH) information including a predetermined hybrid automatic repeat request (HARQ) parameter received from the transmitter and provides overall control to de-rate matching between the collection buffer and the combining buffer, an address generator generates the memory address information based on the decoded HARQ parameter, an address buffer stores the memory address information, and a zero inserter initializes at least one of data stored at memory addresses of the combining buffer including memory addresses for the punctured, before the de-rate matching.
    • 提供了一种高速下行链路分组接入(HSDPA)系统中的去速率匹配方法和装置。 在解速率匹配装置和方法中,收集缓冲器临时存储接收到的分组,组合缓冲器根据预定的存储器地址信息存储从收集缓冲器接收到的分组,该存储器地址信息包括指示在速率匹配期间打孔的位置的信息, 控制器解码包括从发送器接收的预定的混合自动重传请求(HARQ)参数的高速共享公共控制信道(HS-SCCH)信息,并提供对收集缓冲器和组合缓冲器之间的匹配进行去速率的总体控制,地址 发生器基于解码的HARQ参数产生存储器地址信息,地址缓冲器存储存储器地址信息,并且零插入器初始化存储在组合缓冲器的存储器地址处的数据中的至少一个,包括用于被删截的被删除的存储器地址 - 匹配。
    • 28. 发明授权
    • Apparatus and method for measuring neighbor cell signal in portable terminal
    • 用于测量便携式终端中相邻小区信号的装置和方法
    • US07898997B2
    • 2011-03-01
    • US11874564
    • 2007-10-18
    • Beom-Yong LeeChang-Ho SohnYong-Suk Moon
    • Beom-Yong LeeChang-Ho SohnYong-Suk Moon
    • H04Q7/22G08C17/00H04B7/212
    • H04W36/06H04W36/30Y02D70/00Y02D70/1222Y02D70/1242
    • Provided is a method for measuring a neighbor cell signal in a portable terminal includes acquiring a minimum required quality level value and a threshold for an intra-frequency measurement from received system information; calculating a measured cell quality value after the acquiring step; and commencing a neighbor cell signal measurement for an intra-frequency cell reselection when a value acquired by subtracting the minimum required quality level value from the measured cell quality value is less than or equal to a value acquired by adding the threshold and a certain signal strength value over a certain time. In the neighbor cell signal measurement for the cell reselection, the unnecessary neighbor cell signal measurement can be avoided to reduce the power consumption and extend the battery lifetime.
    • 提供了一种用于在便携式终端中测量相邻小区信号的方法,包括从接收到的系统信息中获取最小所需质量水平值和用于频率内测量的阈值; 在获取步骤之后计算测量的细胞质量值; 并且当通过从测量的小区质量值中减去最小所需质量等级值而获得的值小于或等于通过将阈值和特定信号强度相加获得的值而开始用于频率内小区重选的相邻小区信号测量 价值超过一定时间。 在小区重选的相邻小区信号测量中,可以避免不必要的相邻小区信号测量以降低功耗并延长电池寿命。