公开(公告)号：US08565213B2

公开(公告)日：2013-10-22

申请号：US12232490

申请日：2008-09-18

申请人： Tae-Ik Song ,  Young-Hak Kim ,  Jong-Han Lim ,  Jeong-Hoon Park ,  Jae-Hwan Chang ,  Kang-Gyu Lee ,  In-Hyoung Kim

发明人： Tae-Ik Song ,  Young-Hak Kim ,  Jong-Han Lim ,  Jeong-Hoon Park ,  Jae-Hwan Chang ,  Kang-Gyu Lee ,  In-Hyoung Kim

IPC分类号： H04J3/06 ,  H04B15/00

CPC分类号： H04J3/0682 ,  H04W56/0005

摘要： An apparatus and method for estimating UpLink (UL) transmission timing in a Mobile Station (MS) of a wireless communication system are provided. The method includes tracking DL timing by using a DL preamble signal received for each frame; estimating a time offset between a previous frame and a current frame by using the DL timing tracked for each frame; and estimating the UL transmission timing by using the estimated time offset.

公开(公告)号：US07746942B2

公开(公告)日：2010-06-29

申请号：US11698803

申请日：2007-01-26

申请人： Dong-Lae Lee ,  Jong-Han Lim

发明人： Dong-Lae Lee ,  Jong-Han Lim

IPC分类号： H04K1/10 ,  H04L27/00

CPC分类号： H04B1/712 ,  H04B7/0848 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04L25/0206 ,  H04L25/0212

摘要： Provided is an apparatus and method for controlling a dynamic range of weight vectors according to a combining method to fit an input range of a channel decoder in a mobile station of a high rate packet data system. The apparatus includes a channel estimator for receiving pilot symbol from a base station and calculating channel estimation values of receive paths of each antenna, an autocorrelation matrix calculator for calculating autocorrelation matrix values in every chip duration from the received pilot symbols, a weight vector calculator for calculating weight vectors using the channel estimation values and/or autocorrelation matrix values according to a combining method of the multi-path received signals, a controller for outputting modified weight vectors by fitting an input range of a channel decoder according to the combining method, and a combiner for outputting the combined signal by multiplying descrambled received signals by the modified weight vectors. Accordingly, even if various combining methods are used when data is received in a mobile station of a high rate packet data system using the CDMA scheme, performance degradation of a channel decoder can be minimized.

摘要翻译： 提供了一种用于根据组合方法来控制加权矢量的动态范围的装置和方法，以将高通率分组数据系统的移动台中的信道解码器的输入范围拟合。 该装置包括用于从基站接收导频符号并计算每个天线的接收路径的信道估计值的信道估计器，用于从接收的导频符号计算每个码片持续时间内的自相关矩阵值的自相关矩阵计算器，用于 使用所述多路径接收信号的组合方法，使用所述信道估计值和/或自相关矩阵值来计算权重向量;控制器，用于通过根据所述组合方法拟合信道解码器的输入范围来输出修改的权重向量;以及 组合器，用于通过将经解扰的接收信号乘以经修改的权重向量来输出组合信号。 因此，即使在使用CDMA方式的高速率分组数据系统的移动站中接收数据时，即使使用各种组合方法，也可以使信道解码器的性能下降最小化。

公开(公告)号：US20080181325A1

公开(公告)日：2008-07-31

申请号：US12023215

申请日：2008-01-31

申请人： Jeong-Soon Park ,  Jong-Han Lim ,  Min-Cheol Park ,  Myeong-Ae Kang ,  Heon Huh ,  Jae-Yong Lee ,  Yoo-Chang Eun

发明人： Jeong-Soon Park ,  Jong-Han Lim ,  Min-Cheol Park ,  Myeong-Ae Kang ,  Heon Huh ,  Jae-Yong Lee ,  Yoo-Chang Eun

IPC分类号： H04K1/10

CPC分类号： H04L27/2647 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0232

摘要： An apparatus and method for estimating a channel in an Orthogonal Frequency Division Multiplexing (OFDM) system is provided. The apparatus and method includes estimating a channel corresponding to a pilot of a received signal, performing a first estimation on a data channel by performing time-domain linear interpolation on pilots of previous and next symbols of the pilot using the channel estimate, performing Infinite Impulse Response (IIR) filtering on the channel estimate and the data channel estimate of the pilots of the previous and next symbols of the pilot, and performing a second estimation on the data channel by performing frequency-domain linear interpolation on a remaining zone which excludes the pilot and the zone that underwent the first estimation.

摘要翻译： 提供了一种用于估计正交频分复用（OFDM）系统中的信道的装置和方法。 该装置和方法包括：估计与接收信号的导频相对应的信道，通过使用信道估计对导频的先前和下一个符号的导频执行时域线性插值，对数据信道执行第一估计，执行无限脉冲 对导频的前一个和下一个符号的信道估计和导频的数据信道估计进行响应（IIR）滤波，并且对剩余的区域执行频域线性插值，对数据信道执行第二估计， 飞行员和经过第一次估计的区域。

公开(公告)号：US20070150775A1

公开(公告)日：2007-06-28

申请号：US11633424

申请日：2006-12-05

申请人： Seung-Chul Hong ,  Jong-Han Lim

发明人： Seung-Chul Hong ,  Jong-Han Lim

IPC分类号： G06F11/00

CPC分类号： H03M13/2703

摘要： Provided is an apparatus and method for controlling an interleaver/deinterleaver memory in a mobile communication system are provided. In particular, an apparatus and method are provided which can reduce unnecessary time and power consumption by eliminating an unnecessary memory erasure. A write address generator generates write addresses. A memory stores values mapped to the write addresses. A memory controller controls the memory in which an input signal is accumulated to a value stored at a write address which is then recorded at the write address if the value stored at the write address is recorded for a previous packet when the input signal is generated. The memory controller controls the memory in which the input signal is recorded at the write address if the value stored at the current record address is a valid value for a current packet.

摘要翻译： 提供了一种用于控制移动通信系统中的交织器/去交织器存储器的装置和方法。 特别地，提供了一种通过消除不必要的存储器擦除来减少不必要的时间和功耗的装置和方法。 写地址生成器生成写入地址。 存储器存储映射到写地址的值。 存储器控制器将输入信号被累加的存储器控​​制在存储在写地址处的值，然后当产生输入信号时，如果存储在写地址处的值被记录在先前的分组中，则写入地址被记录。 如果当前记录地址中存储的值是当前数据包的有效值，则存储器控制器控制输入信号在写入地址处被记录的存储器。

公开(公告)号：US20060240773A1

公开(公告)日：2006-10-26

申请号：US11368663

申请日：2006-03-07

申请人： Jong-Hun Rhee ,  Beom-Sik Bae ,  Min-Goo Kim ,  Jong-Han Lim ,  Jung-Soo Jung

发明人： Jong-Hun Rhee ,  Beom-Sik Bae ,  Min-Goo Kim ,  Jong-Han Lim ,  Jung-Soo Jung

IPC分类号： H04B7/24

CPC分类号： H04W4/06 ,  H04N19/61 ,  H04W28/18 ,  H04W56/00 ,  H04W72/005

摘要： A system and method are provided for setting a point of time when information is applied in a mobile communication system. A broadcast overhead message including additional information is received and its application time-point is computed. The broadcast overhead message including the additional information is then applied at the computed time-point.

摘要翻译： 提供了一种用于设置在移动通信系统中应用信息时的时间点的系统和方法。 收到包括附加信息的广播开销消息，并计算其应用时间点。 然后在计算的时间点应用包括附加信息的广播开销消息。

公开(公告)号：US08060801B2

公开(公告)日：2011-11-15

申请号：US11900754

申请日：2007-09-13

申请人： Ji-Yun Seol ,  Hyun-Sang Cho ,  Bong-Gee Song ,  Jong-Han Lim ,  Jin-Woo Roh

发明人： Ji-Yun Seol ,  Hyun-Sang Cho ,  Bong-Gee Song ,  Jong-Han Lim ,  Jin-Woo Roh

IPC分类号： G06F11/00

CPC分类号： H04L1/1845 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1835

摘要： Disclosed is a method and apparatus for efficiently controlling buffers which support a Hybrid Automatic Repeat Request (HARQ) in a wireless communication system. Buffer regions for the HARQ scheme are not fixedly allocated according to channel identification information, but are allocated from the viewpoint of one overall memory through aggregation support. That is, an HARQ buffer is dynamically controlled. Therefore, there are the effects reducing the size of the entire chip, as well as reducing power consumption of the entire system according to the reduction of the chip size.

摘要翻译： 公开了一种用于有效地控制在无线通信系统中支持混合自动重复请求（HARQ）的缓冲器的方法和装置。 用于HARQ方案的缓冲区不是根据信道标识信息固定地分配，而是通过聚合支持从一个总体存储器的角度分配。 也就是说，动态地控制HARQ缓冲器。 因此，存在降低整个芯片的尺寸的效果，以及根据芯片尺寸的减小来降低整个系统的功耗。

公开(公告)号：US08059605B2

公开(公告)日：2011-11-15

申请号：US12287843

申请日：2008-10-14

申请人： Hye-Jin Yeou ,  Tae-Ik Song ,  Bong-Gee Song ,  Jong-Han Lim

发明人： Hye-Jin Yeou ,  Tae-Ik Song ,  Bong-Gee Song ,  Jong-Han Lim

IPC分类号： H04W4/00

CPC分类号： H04W28/22 ,  H04W36/22

摘要： An apparatus and method for estimating a cell load in a wireless communication system are provided. The apparatus includes a ranging response counter, a load estimator, an FA handover determiner, a data rate determiner, and a handover determiner. The ranging response counter counts the number of ranging response messages that are received during one period of periodic ranging. The load estimator estimates a cell load on the basis of the number of the ranging response messages. The FA handover determiner determines an FA handover on the basis of the cell load from the load estimator. The data rate determiner controls a data rate of a service on the basis of the cell load from the load estimator and requests the controlled data rate to the system. The handover determiner controls handover parameters on the basis of the cell load from the load estimator.

摘要翻译： 提供了一种用于估计无线通信系统中的小区负载的装置和方法。 该装置包括测距响应计数器，负载估计器，FA切换确定器，数据速率确定器和切换确定器。 测距响应计数器计数在周期性测距的一个周期期间接收的测距响应消息的数量。 负载估计器基于测距响应消息的数量来估计小区负载。 FA切换确定器基于来自负载估计器的小区负载来确定FA切换。 数据速率确定器基于来自负载估计器的小区负载来控制业务的数据速率，并将受控数据速率请求给系统。 切换确定器基于来自负载估计器的小区负载来控制切换参数。

公开(公告)号：US20110164709A1

公开(公告)日：2011-07-07

申请号：US12986700

申请日：2011-01-07

申请人： Jeong-Soon Park ,  Kyung-Min Kim ,  Jong-Han Lim ,  Sung-Soo Kim ,  In-Hyoung Kim ,  Jin Park

发明人： Jeong-Soon Park ,  Kyung-Min Kim ,  Jong-Han Lim ,  Sung-Soo Kim ,  In-Hyoung Kim ,  Jin Park

IPC分类号： H04B1/10

CPC分类号： H04L25/0202

摘要： An apparatus and method for channel estimation decrease overhead and hardware complexity while supporting both Wiener-type channel estimation and Finite Impulse Response (FIR) filtering/Infinite Impulse Response (IIR) filtering in a wireless communication system. The apparatus includes a storage unit for storing coefficient sets for a plurality of channel estimation types. A controller selects one of the plurality of channel estimation types according to at least one of a type of a pilot signal and a reliability value of a channel parameter. An N-tap filter, including N multipliers and (N−1) adders, determines channel estimation values of data tones by using the coefficient sets for the selected channel estimation type.

摘要翻译： 用于信道估计的装置和方法减少了开销和硬件复杂性，同时支持无线通信系统中的维纳型信道估计和有限脉冲响应（FIR）滤波/无限脉冲响应（IIR）滤波。 该装置包括用于存储多个信道估计类型的系数组的存储单元。 控制器根据导频信号的类型和信道参数的可靠性值中的至少一个来选择多个信道估计类型之一。 包括N个乘法器和（N-1）个加法器的N抽头滤波器通过使用所选择的信道估计类型的系数集来确定数据音调的信道估计值。

公开(公告)号：US20100014476A1

公开(公告)日：2010-01-21

申请号：US12503518

申请日：2009-07-15

申请人： Yoo-Chang EUN ,  Jong-Han Lim ,  In-Hyoung Kim

发明人： Yoo-Chang EUN ,  Jong-Han Lim ,  In-Hyoung Kim

IPC分类号： H04W72/04 ,  H04L27/08 ,  H04L1/18

CPC分类号： H04L1/1845 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/0033 ,  H04L5/0062 ,  H04L5/0085

摘要： An apparatus and method for improving a HARQ combining gain in a broadband wireless communication system are provided. The apparatus includes a seed information generator and a subcarrier allocator. The seed information generator randomly generates a seed value for changing a channel of a subcarrier and an interference pattern in a frame unit when a HARQ combining gain is not generated because an interference pattern is the same during a retransmission period. The subcarrier allocator allocates a subcarrier using the generated seed value.

摘要翻译： 提供了一种用于改善宽带无线通信系统中的HARQ组合增益的装置和方法。 该装置包括种子信息发生器和子载波分配器。 种子信息生成器随机地生成种子值，用于当由于干扰模式在重传周期期间相同时，不产生HARQ组合增益时，以帧为单位改变子载波的信道和干扰模式。 子载波分配器使用生成的种子值分配子载波。

公开(公告)号：US20080002629A1

公开(公告)日：2008-01-03

申请号：US11769992

申请日：2007-06-28

申请人： Jin Woo Roh ,  Ji-Yun Seol ,  Bong-Gee Song ,  Jong-Han Lim ,  Jung-Ho Lee

发明人： Jin Woo Roh ,  Ji-Yun Seol ,  Bong-Gee Song ,  Jong-Han Lim ,  Jung-Ho Lee

IPC分类号： H04B7/216

CPC分类号： H04L1/1845

摘要： A method and HARQ memory apparatus in a BWA communication system are provided where the HARQ memory apparatus includes a memory configured to partition the entire memory area in units of slots corresponding to the size of a concatenation block, to input/output a plurality of channel data to the slot in units of the concatenation block, to store a new concatenation block in an empty slot, and to combine a retransmitted concatenation block with a prestored concatenation block and store the combined concatenation block at a prestored location. Accordingly, the required amount of memory can be reduced by using a buffer efficiently. In particular, when a memory is embedded in an integrated circuit, the size and power consumption of the integrated circuit can be reduced.

摘要翻译： 提供了一种在BWA通信系统中的方法和HARQ存储装置，其中，所述HARQ存储装置包括被配置为以对应于级联块的大小的时隙为单位划分整个存储区域的存储器，以输入/输出多个信道数据 以级联块的单位连接到时隙，以将新的级联块存储在空时隙中，并将重传的级联块与预先存储的级联块组合，并将组合的级联块存储在预存的位置。 因此，可以通过有效地使用缓冲器来减少所需的存储量。 特别地，当存储器嵌入在集成电路中时，可以减小集成电路的尺寸和功耗。