公开(公告)号：US20120106500A1

公开(公告)日：2012-05-03

申请号：US13384193

申请日：2010-07-30

Applicant: Jin Young Chun ,  Wook Bong Lee ,  Bin Chul Ihm

Inventor： Jin Young Chun ,  Wook Bong Lee ,  Bin Chul Ihm

IPC: H04W72/04 ,  H04W72/02

CPC classification number: H04L5/0091 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0618

Abstract: A method and an apparatus for feedback transmission in a wireless communication system are provided. A terminal selects at least one subband among plural subbands constituting a set of subbands and transmits information about feedback measured for the at least one subband. The feedback information contains an index of the at least one subband, and the at least one subband is selected in consideration of resource mapping of the plural subbands.

Abstract translation: 提供了一种用于无线通信系统中的反馈传输的方法和装置。 终端在构成一组子带的多个子带中选择至少一个子带，并发送关于针对至少一个子带测量的反馈的信息。 所述反馈信息包含所述至少一个子带的索引，并且考虑到所述多个子带的资源映射来选择所述至少一个子带。

公开(公告)号：US08111662B2

公开(公告)日：2012-02-07

申请号：US12385369

申请日：2009-04-06

Applicant: Wook Bong Lee ,  Jin Young Chun ,  Sung Ho Park ,  Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm

Inventor： Wook Bong Lee ,  Jin Young Chun ,  Sung Ho Park ,  Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm

IPC: H04W4/00

CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0689

Abstract: A mode adaptation method for performing mode switching between a single-user MIMO (SU-MIMO) mode and a multi-user MIMO (MU-MIMO) mode includes reporting, by a base station, a MIMO feedback mode to a mobile station, receiving a feedback information determined on the basis of the MIMO feedback mode from the mobile station; and determining a MIMO feedback mode based on the feedback information. The MIMO feedback mode indicates whether it is single-user MIMO or multi-user MIMO and includes a number of mobile stations (MSs) transferred at one time. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

Abstract translation: 用于在单用户MIMO（SU-MIMO）模式和多用户MIMO（MU-MIMO）模式之间执行模式切换的模式适配方法包括由基站向移动台报告MIMO反馈模式，接收 基于来自移动台的MIMO反馈模式确定的反馈信息; 以及基于所述反馈信息确定MIMO反馈模式。 MIMO反馈模式指示它是单用户MIMO还是多用户MIMO，并且包括一次转移的多个移动台（MS）。 因此，该方法可以同时最大化系统吞吐量，同时有效减少反馈信息的数量。

公开(公告)号：US20120008613A1

公开(公告)日：2012-01-12

申请号：US13240591

申请日：2011-09-22

Applicant: Wook Bong LEE ,  Jin Young Chun ,  Sung Ho Park ,  Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm

Inventor： Wook Bong LEE ,  Jin Young Chun ,  Sung Ho Park ,  Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm

IPC: H04W92/00

CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0689

Abstract: A feedback method for performing a feedback by using a codebook in Multiple Input Multiple Output (MIMO) system includes receiving, by the mobile station, a MIMO mode type information, generating feedback information by using the codebook selected according to the MIMO mode type information, and transmitting the feedback information to the base station. The codebook includes a SU-MIMO codebook and a MU-MIMO codebook, and the MU-MIMO codebook is formed by extracting codebook elements from the SU-MIMO codebook. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

Abstract translation: 用于通过使用多输入多输出（MIMO）系统中的码本来执行反馈的反馈方法包括：由移动台接收MIMO模式类型信息，通过使用根据MIMO模式类型信息选择的码本生成反馈信息， 以及将所述反馈信息发送到所述基站。 码本包括SU-MIMO码本和MU-MIMO码本，并且通过从SU-MIMO码本中提取码本元素来形成MU-MIMO码本。 因此，该方法可以同时最大化系统吞吐量，同时有效减少反馈信息的数量。

公开(公告)号：US07995664B2

公开(公告)日：2011-08-09

申请号：US11995675

申请日：2006-07-14

Applicant: Bin Chul Ihm ,  Moon Il Lee ,  Jin Young Chun ,  Wook Bong Lee ,  Jae Won Chang ,  Jin Hyuk Jung ,  Jae Wan Kim

Inventor： Bin Chul Ihm ,  Moon Il Lee ,  Jin Young Chun ,  Wook Bong Lee ,  Jae Won Chang ,  Jin Hyuk Jung ,  Jae Wan Kim

IPC: H04L27/28 ,  H04J11/00

CPC classification number: H04B7/0669 ,  H04B7/0684 ,  H04J13/004 ,  H04J13/18 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2613

Abstract: A method of transmitting pilot symbols is disclosed. In a communication system performing communications using a plurality of antennas and multiple carriers, the present invention includes the steps of generating a plurality of pilot symbol sequences based on a basic code sequence, data-processing a plurality of the pilot symbol sequences by allocating each of a plurality of the pilot symbol sequences to the multiple carriers, and transmitting each of a plurality of the data-processed pilot symbol sequences via a corresponding one of a plurality of the antennas.

Abstract translation: 公开了一种发送导频符号的方法。 在使用多个天线和多个载波进行通信的通信系统中，本发明包括以下步骤：基于基本代码序列生成多个导频符号序列，通过分配每个导频符号序列来分配多个导频符号序列 多个导频符号序列到多个载波，并且经由多个天线中的对应的一个发送多个数据处理的导频符号序列中的每一个。

公开(公告)号：US20110188441A1

公开(公告)日：2011-08-04

申请号：US13121093

申请日：2010-01-22

Applicant: Dong Cheol Kim ,  Jin Soo Choi ,  Han Gyu Cho ,  Jin Sam Kwak ,  Wook Bong Lee

Inventor： Dong Cheol Kim ,  Jin Soo Choi ,  Han Gyu Cho ,  Jin Sam Kwak ,  Wook Bong Lee

IPC: H04W4/06

CPC classification number: H04W72/005 ,  H04L5/0044 ,  H04L27/2602 ,  H04W72/0453

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method for allocating a resource for multicast and/or broadcast service data in a wireless communication system and apparatus therefore. The present invention includes the steps of dividing a certain frequency band into a plurality of subbands, and allocating at least one subband to the MBS data from a subband having a lowest index among the plurality of subbands, wherein the MBS data is multiplexed with unicast data.

Abstract translation: 本发明涉及一种无线通信系统，更具体地说，涉及一种在无线通信系统及装置中为多播和/或广播服务数据分配资源的方法。 本发明包括以下步骤：将某个频带划分成多个子带，并且从多个子带中具有最低索引的子带向MBS数据分配至少一个子带，其中MBS数据与单播数据多路复用 。

公开(公告)号：US20110111789A1

公开(公告)日：2011-05-12

申请号：US12944625

申请日：2010-11-11

Applicant: Wook Bong LEE ,  Han Gyu Cho ,  Ja Ho Koo ,  Bin Chul Ihm ,  Jin Soo Choi

Inventor： Wook Bong LEE ,  Han Gyu Cho ,  Ja Ho Koo ,  Bin Chul Ihm ,  Jin Soo Choi

IPC: H04W52/02

CPC classification number: H04W52/42 ,  H04W52/38

Abstract: A method for acquiring FFR power pattern of Frequency Partitions (FPs) at a mobile station (MS) in a wireless communication system using Fractional Frequency Reuse (FFR) is disclosed. The method includes receiving a preamble from a base station (BS); and acquiring a FFR power pattern for a reuse-1 partition and reuse-N partitions using the received preamble, wherein the FFR power pattern is determined based on a segment identifier (ID), the reuse-N partitions include N frequency partitions, each frequency partition has a power level with a range of FP1_power level to FPN_power level, a power-boosted FP in the reuse-N partitions is a partition whose power level is the FP1_power level.

Abstract translation: 公开了一种在使用分数频率重用（FFR）的无线通信系统中在移动站（MS）处获取频率分区（F F）的FFR功率模式的方法。 该方法包括从基站（BS）接收前导码; 并且使用所接收的前导码获取用于重用1分区的FFR功率模式和重新使用N个分区，其中基于分段标识符（ID）确定所述FFR功率模式，所述重用N分区包括N个频率分区，每个频率 分区具有FP1_power级别到FPN_power级别的功率级别，重新使用N分区中的功率增强FP是功率级别为FP1_power级别的分区。

公开(公告)号：US20110105164A1

公开(公告)日：2011-05-05

申请号：US13002569

申请日：2009-07-06

Applicant: Dong Guk Lim ,  Wook Bong Lee ,  Su Nam Kim ,  Bin Chul Ihm ,  Jae Wan Kim

Inventor： Dong Guk Lim ,  Wook Bong Lee ,  Su Nam Kim ,  Bin Chul Ihm ,  Jae Wan Kim

IPC: H04B15/00

CPC classification number: H04B7/0417

Abstract: A method is disclosed for avoiding inter-cell interference in a closed-loop multiple-input multiple-output (MIMO) system using a plurality of codebooks. A base station of a serving cell transmits information about codebooks used in an interfering cell among the plurality of codebooks to a mobile station. The transmission of the information may be made at the request of the mobile station. Alternatively, the mobile station may directly measure information about codebooks used in the interfering cell among the plurality of codebooks. The mobile station measures restricted precoding matrix indexes (PMIs) or requested PMIs based on the codebook information. The measured PMIs are transmitted to the interfering cell and are used to restrict the use of a PMI in the interfering cell.

Abstract translation: 公开了一种用于避免使用多个码本的闭环多输入多输出（MIMO）系统中的小区间干扰的方法。 服务小区的基站向移动台发送关于多个码本中的干扰小区中使用的码本的信息。 信息的发送可以根据移动台的请求进行。 或者，移动站可以直接测量关于多个码本之间的干扰小区中使用的码本的信息。 移动台基于码本信息来测量限制性预编码矩阵索引（PMI）或请求的PMI。 测量的PMI被传送到干扰小区，并用于限制干扰小区中PMI的使用。

公开(公告)号：US20110051834A1

公开(公告)日：2011-03-03

申请号：US12666777

申请日：2008-06-24

Applicant: Moon Il Lee ,  Bin Chul Ihm ,  Hyun Soo Ko ,  Wook Bong Lee ,  Jin Hyuk Jung ,  Jae Wan Kim

Inventor： Moon Il Lee ,  Bin Chul Ihm ,  Hyun Soo Ko ,  Wook Bong Lee ,  Jin Hyuk Jung ,  Jae Wan Kim

IPC: H04L1/02

CPC classification number: H04W52/346

Abstract: Methods of controlling a transmission power and configuring a codebook in a multi-antenna system to solve a transmission power unbalance between antennas are disclosed. The method of transmitting data in a multi-antenna system includes (A) transmitting one or more pilot signals within a first symbol region through a first antenna unit, and (B) transmitting one or more pilot signals within a second symbol region through a second antenna unit, wherein data within the first symbol region is transmitted through the second antenna unit, and data within the second symbol region is transmitted through the first antenna unit. According to the present invention, since a transmission power unbalance between antennas is solved, a transmission power can be uniformly assigned to each antenna and channel estimation can be easily performed. Moreover, a power amplifier having a uniform amplification range can be used and designed.

Abstract translation: 公开了在多天线系统中控制发射功率和配置码本以解决天线之间的发射功率不平衡的方法。 在多天线系统中发送数据的方法包括：（A）通过第一天线单元在第一符号区域内传输一个或多个导频信号，以及（B）通过第二天线单元在第二符号区域内传输一个或多个导频信号 天线单元，其中通过第二天线单元发送第一符号区域内的数据，并且通过第一天线单元发送第二符号区域内的数据。 根据本发明，由于天线之间的发送功率不平衡被解决，所以可以将发送功率均匀地分配给每个天线，并且可以容易地进行信道估计。 此外，可以使用和设计具有均匀放大范围的功率放大器。

公开(公告)号：US20110034192A1

公开(公告)日：2011-02-10

申请号：US12934220

申请日：2009-03-30

Applicant: Dong Guk Lim ,  Wook Bong Lee ,  Su Nam Kim ,  Bin Chul Ihm ,  Jae Wan Kim

Inventor： Dong Guk Lim ,  Wook Bong Lee ,  Su Nam Kim ,  Bin Chul Ihm ,  Jae Wan Kim

IPC: H04W24/02

CPC classification number: H04B7/0639 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0478

Abstract: A method for avoiding an inter-cell interference (ICI) in a multi-cell environment is disclosed. The method includes restricting the use of a PMI in an interfering cell so as to improve a reception performance of a mobile station located at an interfered cell edge. The mobile station measures a restricted-PMI of the interfering cell, which is prohibited from use in the interfering cell, and transmits the measured restricted PMI to the interfering cell. The use of the restricted PMI is prohibited from use in a mobile station in the interfering cell.

Abstract translation: 公开了一种在多小区环境中避免小区间干扰（ICI）的方法。 该方法包括限制在干扰小区中使用PMI，以提高位于干扰小区边缘的移动台的接收性能。 移动站测量干扰小区的受限PMI，其被禁止在干扰小区中使用，并将测量的限制PMI发送到干扰小区。 禁止在干扰小区中的移动台中使用受限PMI。

公开(公告)号：US20110032878A1

公开(公告)日：2011-02-10

申请号：US12936902

申请日：2009-04-16

Applicant: Jin Young Chun ,  Moon ll Lee ,  Wook Bong Lee ,  Bin Chul lhm

Inventor： Jin Young Chun ,  Moon ll Lee ,  Wook Bong Lee ,  Bin Chul lhm

IPC: H04W40/00

CPC classification number: H04L1/0028 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/1607 ,  H04L5/003

Abstract: A method for transmitting a band bitmap in a wireless communication system is provided. The method includes selecting at least one selection band from a plurality of bands, the plurality of bands being distributed throughout a whole frequency band, grouping the plurality of bands into a plurality of band groups, setting a primary bitmap for each band group according to whether the selection band is included in each band group and setting a secondary bitmap for bands in each band group, and transmitting the primary bitmap and the secondary bitmap. Radio resources used to transmit a band bitmap can be reduced by decreasing the number of bits of the band bitmap.

Abstract translation: 提供了一种用于在无线通信系统中发送频带位图的方法。 该方法包括从多个频带中选择至少一个选择频带，多个频带分布在整个频带上，将多个频段分组成多个频带组，根据是否为每个频带组设置主要位图 选择频带被包括在每个频带组中，并且为每个频带组中的频带设置辅助位图，并且发送主位图和辅助位图。 可以通过减少频带位图的位数来减少用于发送频带位图的无线电资源。