公开(公告)号：US08238310B2

公开(公告)日：2012-08-07

申请号：US12315755

申请日：2008-12-05

申请人： Hee Yong Youn ,  Chi Hyun Cho ,  Kyung Tae Kim

发明人： Hee Yong Youn ,  Chi Hyun Cho ,  Kyung Tae Kim

IPC分类号： H04W4/00

CPC分类号： H04W72/005 ,  H04B7/2606 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L2001/0093 ,  H04L2001/0097 ,  H04W72/085 ,  H04W84/047

摘要： A system and method for relaying Multicast Broadcast Service (MBS) are provided. The system for relaying MBS includes a base station; and a plurality of relay stations, wherein the relay stations forms multi-hop relay network, and wherein the base station selects a Modulation and Coding Scheme (MCS) level among a plurality of MCS levels based on channel condition between the base station and the respective relay stations. The MBS relay system of the present invention provides improved data throughput and stable broadcast services.

摘要翻译： 提供了一种用于中继多播广播服务（MBS）的系统和方法。 用于中继MBS的系统包括基站; 以及多个中继站，其中所述中继站形成多跳中继网络，并且其中所述基站基于所述基站与所述基站之间的信道状况来选择多个MCS级别中的调制和编码方案（MCS）级别 中继站。 本发明的MBS中继系统提供了改进的数据吞吐量和稳定的广播业务。

公开(公告)号：US20090285145A1

公开(公告)日：2009-11-19

申请号：US12315755

申请日：2008-12-05

申请人： Hee Yong Youn ,  Chi Hyun Cho ,  Kyung Tae Kim

发明人： Hee Yong Youn ,  Chi Hyun Cho ,  Kyung Tae Kim

IPC分类号： H04H20/71

CPC分类号： H04W72/005 ,  H04B7/2606 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L2001/0093 ,  H04L2001/0097 ,  H04W72/085 ,  H04W84/047

摘要： A system and method for relaying Multicast Broadcast Service (MBS) are provided. The system for relaying MBS includes a base station; and a plurality of relay stations, wherein the relay stations forms multi-hop relay network, and wherein the base station selects a Modulation and Coding Scheme (MCS) level among a plurality of MCS levels based on channel condition between the base station and the respective relay stations. The MBS relay system of the present invention provides improved data throughput and stable broadcast services.

摘要翻译： 提供了一种用于中继多播广播服务（MBS）的系统和方法。 用于中继MBS的系统包括基站; 以及多个中继站，其中所述中继站形成多跳中继网络，并且其中所述基站基于所述基站与所述基站之间的信道状况来选择多个MCS级别中的调制和编码方案（MCS）级别 中继站。 本发明的MBS中继系统提供了改进的数据吞吐量和稳定的广播业务。

公开(公告)号：US07929479B2

公开(公告)日：2011-04-19

申请号：US12365142

申请日：2009-02-03

申请人： Hee Yong Youn ,  Chi Hyun Cho

发明人： Hee Yong Youn ,  Chi Hyun Cho

IPC分类号： H04B7/14

CPC分类号： H04H20/72 ,  H04H20/42 ,  H04H60/80 ,  H04L43/0888

摘要： A method and system for Multicast Broadcast Service (MBS) over Mobile Multi-hop Relay (MMR) network using dynamic modification of Modulation and Coding Scheme (MCS) level are provided. The method comprises deciding MCS level for transmission between base station (BS) and relay station (RS), deciding MCS level for transmission between the BS and RS, and transmitting an MCS control message to the RS informing of the MCS level for transmission between the RS and the MS comprises calculating spectrum efficiency of the MS (ME), and selecting MCS level corresponding to the ME as optimum MCS level for the transmission between the RS and the MS.

摘要翻译： 提供了一种使用动态修改调制和编码方案（MCS）级别的移动多跳中继（MMR）网络组播广播服务（MBS）的方法和系统。 该方法包括：确定基站（BS）和中继站（RS）之间传输的MCS级别，确定BS与RS之间的传输的MCS级别;以及向RS发送MCS控制消息，通知MCS级别以进行传输 RS，MS包括计算MS（ME）的频谱效率，并且选择与ME对应的MCS级别作为RS和MS之间的传输的最佳MCS级别。

公开(公告)号：US20100054141A1

公开(公告)日：2010-03-04

申请号：US12365142

申请日：2009-02-03

申请人： Hee Yong Youn ,  Chi Hyun Cho

发明人： Hee Yong Youn ,  Chi Hyun Cho

IPC分类号： H04L12/26 ,  H04H20/71 ,  H04B7/14

CPC分类号： H04H20/72 ,  H04H20/42 ,  H04H60/80 ,  H04L43/0888

摘要： A method and system for Multicast Broadcast Service (MBS) over Mobile Multi-hop Relay (MMR) network using dynamic modification of Modulation and Coding Scheme (MCS) level are provided. The base station of the system for MBS over MMR network using dynamic modification of MCS level comprises: Adaptive Modulation and Coding (AMC) table for storing the MCS level for the transmission between the BS and relay station (RS), throughput corresponding to the MCS level, and spectrum efficiency corresponding to the MCS level; and Dynamic Modulation and Coding (DMC) table for storing the MCS level for the transmission between the RS and MS to be changed upon update of the AMC table. If there is any change of the MCS level for the transmission between the RS and MS, the BS transmits a MCS control message to the RS informing of the MCS level change such that MBS data is transmitted with the changed MCS level.

摘要翻译： 提供了一种使用动态修改调制和编码方案（MCS）级别的移动多跳中继（MMR）网络组播广播服务（MBS）的方法和系统。 使用MCS级别的动态修改的基于MMR网络的MBS系统的基站包括：用于存储BS和中继站（RS）之间的传输的MCS级别的自适应调制和编码（AMC）表，与MCS对应的吞吐量 水平和频谱效率对应于MCS级别; 和动态调制和编码（DMC）表，用于存储在更新AMC表之后要在RS和MS之间进行传输的MCS级别。 如果对于RS和MS之间的传输的MCS级别有任何改变，则BS向RS发送MCS控制消息，通知MCS级别的改变，使得以改变的MCS级别发送MBS数据。

公开(公告)号：US08243689B2

公开(公告)日：2012-08-14

申请号：US12712340

申请日：2010-02-25

申请人： Hee Yong Youn ,  Kyung Tae Kim ,  Byung Jun Lee

发明人： Hee Yong Youn ,  Kyung Tae Kim ,  Byung Jun Lee

IPC分类号： H04W4/00

CPC分类号： H04W36/30 ,  H04W36/32

摘要： Disclosed herein is a handover method and apparatus for providing mobile Internet Protocol Television (IPTV) service over wireless communication networks. The handover method includes checking whether the strength of a signal received from a first base station of a serving first wireless network falls within a predetermined first threshold range; if the strength of the signal falls within the range, checking whether the strength of a signal received from at least one base station of a second wireless network is higher than a second threshold value required for handover; estimating the velocity and direction of a Mobile Node (MN) using location information received from a satellite; predicting a handover target base station using the estimated velocity and estimated location information; and, if the predicted target base station is one of base stations having the second threshold value, performing handover to the target base station.

摘要翻译： 本文公开了一种用于通过无线通信网络提供移动因特网协议电视（IPTV）服务的切换方法和装置。 切换方法包括：检查从服务第一无线网络的第一基站接收的信号的强度是否落在预定的第一阈值范围内; 如果信号的强度落在该范围内，则检查从第二无线网络的至少一个基站接收到的信号的强度是否高于切换所需的第二阈值; 使用从卫星接收的位置信息来估计移动节点（MN）的速度和方向; 使用估计速度和估计位置信息来预测切换目标基站; 并且如果预测的目标基站是具有第二阈值的基站之一，则执行到目标基站的切换。

公开(公告)号：US20100251296A1

公开(公告)日：2010-09-30

申请号：US12731627

申请日：2010-03-25

申请人： Jun Hyung KIM ,  Kyung Tae Kim ,  Sung Oh Hwang ,  Hee Yong Youn ,  Sang Won Rhee

发明人： Jun Hyung KIM ,  Kyung Tae Kim ,  Sung Oh Hwang ,  Hee Yong Youn ,  Sang Won Rhee

IPC分类号： H04N5/445

CPC分类号： H04N5/50 ,  H04N21/4384

摘要： A channel switching method and system for IPTV for reducing channel switching delay and improving bandwidth utilization efficiency is provided. The channel switching method includes pre-joining candidate channels while playing broadcast data on a main channel, the candidate channels being stored in a candidate channel table; releasing the pre-joined candidate channels, when a channel holding time of the main channel is greater than a predetermined channel holding time level; and re-joining the released candidate channels before a completion of playing the broadcast data on the main channel.

摘要翻译： 提供了一种用于IPTV的信道切换方法和系统，用于降低信道切换延迟并提高带宽利用效率。 信道切换方法包括在主信道上播放广播数据时预先加入候选信道，候选信道被存储在候选信道表中; 当主信道的信道保持时间大于预定信道保持时间时，释放预先接收的候选信道; 并在完成在主频道上播放广播数据之前重新加入所发布的候选频道。

公开(公告)号：US20100232383A1

公开(公告)日：2010-09-16

申请号：US12722131

申请日：2010-03-11

申请人： Jun Hyung KIM ,  Sung Oh Hwang ,  Joon Hwang Kim ,  Kyung Tae Kim ,  Hee Yong Youn ,  Hyun Chul Lee

发明人： Jun Hyung KIM ,  Sung Oh Hwang ,  Joon Hwang Kim ,  Kyung Tae Kim ,  Hee Yong Youn ,  Hyun Chul Lee

IPC分类号： H04W72/04

CPC分类号： H04N7/17336 ,  H04N21/2385 ,  H04N21/26216 ,  H04N21/6125 ,  H04W24/10 ,  H04W28/20 ,  H04W72/0453

摘要： A method and apparatus for allocating channel bandwidths in a wireless IPTV system is provided. The method includes measuring, if an additional service offering request is received in a saturation channel state, remaining execution times until a service of each terminal that is currently receiving a service is terminated, and setting a minimum of the measured remaining execution times to a unit time; calculating a securable channel bandwidth per the unit time with respect to each terminal that is currently receiving a service; and allocating, if the summation of the securable channel bandwidths per the unit time is equal to or greater than a channel bandwidth required to provide the additional service, the requested channel bandwidth in order to provide the additional service.

摘要翻译： 提供了一种用于在无线IPTV系统中分配信道带宽的方法和装置。 该方法包括：如果在饱和信道状态下接收到附加业务提供请求，则测量直到当前正在接收业务的每个终端的业务终止为止的剩余执行时间，并且将所测量的剩余执行时间的最小值设置为单元 时间; 计算相对于当前正在接收服务的每个终端的单位时间的可保密信道带宽; 并且如果每个单位时间的可保密信道带宽的总和等于或大于提供附加服务所需的信道带宽，则分配所请求的信道带宽以便提供附加服务。

公开(公告)号：US08374141B2

公开(公告)日：2013-02-12

申请号：US12722131

申请日：2010-03-11

申请人： Jun Hyung Kim ,  Sung Oh Hwang ,  Joon Hwang Kim ,  Kyung Tae Kim ,  Hee Yong Youn ,  Hyun Chul Lee

发明人： Jun Hyung Kim ,  Sung Oh Hwang ,  Joon Hwang Kim ,  Kyung Tae Kim ,  Hee Yong Youn ,  Hyun Chul Lee

IPC分类号： H04N7/173 ,  H04W4/00 ,  H04W72/04 ,  H04B1/66

CPC分类号： H04N7/17336 ,  H04N21/2385 ,  H04N21/26216 ,  H04N21/6125 ,  H04W24/10 ,  H04W28/20 ,  H04W72/0453

摘要： A method and apparatus for allocating channel bandwidths in a wireless IPTV system is provided. The method includes measuring, if an additional service offering request is received in a saturation channel state, remaining execution times until a service of each terminal that is currently receiving a service is terminated, and setting a minimum of the measured remaining execution times to a unit time; calculating a securable channel bandwidth per the unit time with respect to each terminal that is currently receiving a service; and allocating, if the summation of the securable channel bandwidths per the unit time is equal to or greater than a channel bandwidth required to provide the additional service, the requested channel bandwidth in order to provide the additional service.

摘要翻译： 提供了一种用于在无线IPTV系统中分配信道带宽的方法和装置。 该方法包括：如果在饱和信道状态下接收到附加业务提供请求，则测量直到当前正在接收业务的每个终端的业务终止为止的剩余执行时间，并且将所测量的剩余执行时间的最小值设置为单元 时间; 计算相对于当前正在接收服务的每个终端的单位时间的可保密信道带宽; 并且如果每个单位时间的可保密信道带宽的总和等于或大于提供附加服务所需的信道带宽，则分配所请求的信道带宽以便提供附加服务。

公开(公告)号：US08272021B2

公开(公告)日：2012-09-18

申请号：US12582676

申请日：2009-10-20

申请人： Hee Yong Youn ,  Jong Ik Jang

发明人： Hee Yong Youn ,  Jong Ik Jang

IPC分类号： H04N7/173

CPC分类号： H04N21/26275 ,  H04N21/47208 ,  H04N21/845

摘要： The present invention discloses a method for transmitting Near Video on Demand (NVoD) using Catch and Rest (CAR) and sub-channels which includes: dividing an L-sized content into N segments using the CAR broadcasting scheme, allocating the segments to K channels including a replicate channel, and broadcasting the segments; dividing a first segment S1R (SiR represents an i-th segment of a regular channel) into Nsb sub-segments again at given bandwidth using the harmonic broadcasting scheme, and dividing an i-th sub-segment Sisb into i segments again; broadcasting the sub-segments {Si.1sb, . . . , Si.isb} in n sub-channels; and adding the segments {S2R, . . . , SNR} to a sub-layer and broadcasting the segments, the first segment broadcast in the first channel being divided and allocated to a few sub-channels, the succeeding segments broadcast in the other channels being just shifted and broadcast.

摘要翻译： 本发明公开了一种使用Catch和Rest（CAR）和子信道发送近视点播（NVoD）的方法，包括：使用CAR广播方案将L大小的内容划分成N个片段，将片段分配给K个信道 包括复制频道，以及广播片段; 使用谐波广播方案，以给定带宽再次将第一段S1R（SiR表示规则信道的第i个段表示为Nsb个子段）划分成Nsb个子段，并将第i个子段Sisb再次划分为i个段; 广播分段{Si.1sb，。 。 。 ，Si.isb}在n个子通道中; 并添加段{S2R，。 。 。 ，SNR}发送到子层并广播这些段，在第一信道中广播的第一段被划分并分配给几个子信道，在其他信道中广播的后续段刚刚被转换和广播。

公开(公告)号：US20080313637A1

公开(公告)日：2008-12-18

申请号：US12022889

申请日：2008-01-30

申请人： Hee Yong Youn ,  Ji Hoon Kim

发明人： Hee Yong Youn ,  Ji Hoon Kim

IPC分类号： G06F9/46

CPC分类号： G06F9/5027 ,  G06F2209/5011 ,  G06F2209/5018 ,  G06F2209/508

摘要： The present invention relates to a prediction-based dynamic thread pool management method and an agent platform using the same. An prediction-based dynamic thread pool management method according to the present invention includes: (a) calculating a thread variation to a variation of the number of threads at a time t1, (b) calculating the number of expected threads expected at a time t2 on the basis of the thread variation, (c) determining a change of the thread variation according to the time elapsed, and (d) decreasing an executing frequency of said steps (a) and (b) when it is determined that the change of the thread variation at said step (c) is small and increasing the executing frequency of said steps (a) and (b) when it is determined that the change of the thread variation is large.

摘要翻译： 本发明涉及一种基于预测的动态线程池管理方法及其使用的代理平台。 根据本发明的基于预测的动态线程池管理方法包括：（a）计算在时间t1的线程数目变化的线程变化，（b）计算在时间t2期望的预期线程数 （c）根据经过时间确定线程变化的变化，以及（d）当确定所述步骤（a）和（b）的变化时，减少所述步骤（a）和（b）的执行频率， 当确定线变化的变化大时，所述步骤（c）的线程变化小并且增加所述步骤（a）和（b）的执行频率。