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公开(公告)号：KR1020070082284A
公开(公告)日：2007-08-21
申请号：KR1020060014913
申请日：2006-02-16
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: H04W84/18 , H04W28/0268 , H04W72/1226 , H04W72/1278
Abstract: An apparatus and a method for distributing radio resources in a multi-hop relay broadband wireless access communication system are provided to increase the transmission efficiency without a waste of resources of an overall system by evenly distributing radio resources to relay stations that re-use frequency resources by using two types of schedulers. A priority level of each transmission packet is determined so that channels can be evenly allocated to relay stations that use the same radio resources by using an inter-scheduling and intra-scheduling. The number of sub-channels required for transmitting packets is determined according to each priority level, and a temporary frame is generated to determine the number of sub-channels to be allocated to the relay stations that use the same radio resources. Packets included in the generated temporary frame are divided by link and allocated by sub-channel.
Abstract translation: 提供了一种用于在多跳中继宽带无线接入通信系统中分配无线电资源的装置和方法，以通过将无线电资源均匀地分配给重新使用频率资源的中继站来提高传输效率而不浪费整个系统的资源 通过使用两种类型的调度器。 确定每个传输分组的优先级，使得可以通过使用调度间调度和内部调度来将信道均匀地分配给使用相同无线电资源的中继站。 根据每个优先级确定发送分组所需的子信道的数量，生成临时帧，以确定要分配给使用相同无线资源的中继站的子信道的数量。 包含在生成的临时帧中的数据包由链路划分，并由子信道分配。
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公开(公告)号：KR1020070068930A
公开(公告)日：2007-07-02
申请号：KR1020050131028
申请日：2005-12-27
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
Abstract: A scheduling method in a communication system using plural channels and a device thereof are provided to perform scheduling correspondingly to CQI(Channel Quality Information) of channels which change according to time and CQI of MSs(Mobile Stations), thereby improving system performance. M queues(311-1~311-M) store data targeting on each of M receivers serviced by a transmitter. A scheduler(313) allocates receivers for receiving the data through each of B channels among the M receivers according to a scheduling method preset at a scheduling time. The scheduling method refers to a proportional fairness scheduling method.
Abstract translation: 提供了使用多个信道的通信系统中的调度方法及其装置，用于根据MS（移动台站）的时间和CQI进行改变的信道的CQI（信道质量信息）进行调度，从而提高系统性能。 M队列（311-1〜311-M）存储由发射机服务的每个M个接收机上的数据。 调度器（313）根据在调度时间预先设定的调度方式，分配M个接收机中的每个B信道的接收数据。 调度方法是指比例公平调度方法。
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公开(公告)号：KR102231597B1
公开(公告)日：2021-03-24
申请号：KR1020190083535
申请日：2019-07-11
Applicant: 서강대학교산학협력단
Abstract: 본발명은무선접속네트워크를공유하는이종망네트워크환경에서핸드오버(handover) 파라미터를제어하는기술에관한것으로, 이종망기지국간의 RLF(Radio Link Failure) 발생을감지하고, 감지된상기 RLF가 RF 환경에비해핸드오버준비절차의완료전 서빙(serving) 기지국으로접속실패가발생하는경우의늦은(too late) 핸드오버인지, 또는감지된상기 RLF가 RF 환경에비해타겟(target) 기지국으로접속실패가발생하는경우의빠른(too early) 핸드오버인지여부를판단하여각각의횟수를계수(count)하며, 계수된늦은핸드오버및 빠른핸드오버의횟수를고려하여핸드오버성공률을주어진목표수준이상으로유지하고핑퐁(Ping-pong) 핸드오버가감소하도록핸드오버파라미터를조절한다.
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Patent Agency Ranking
公开(公告)号：KR101528324B1
公开(公告)日：2015-06-16
申请号：KR1020140122801
申请日：2014-09-16
Applicant: 주식회사 케이엠더블유 , 서강대학교산학협력단
IPC: H04B7/155
CPC classification number: H04W56/001 , H04B7/155 , H04W88/085
Abstract: 본발명은이동통신기지국시스템에있어서; 베이스밴드장비와연결되는도우너유니트와; 기지국안테나측에설치되는리모트유니트를포함하며; 도우너유니트는베이스밴드장비와의인터페이스를처리하는디지털신호처리부를포함하는베이스밴드신호처리부와, 상기베이스밴드신호처리부와상기리모트유니트사이의무선통신신호를처리하는무선통신부와베이스밴드장비로부터의동기신호및 통신제어신호를처리하는동기및 통신제어부를구비하며; 리모트유니트는, 기지국안테나와의 MIMO 인터페이스를처리하는서비스신호처리부와, 상기서비스신호처리부와상기도우너유니트사이의무선통신신호를처리하는무선통신부와, 상기도우너유니트로부터의동기신호및 통신제어신호를처리하는동기및 통신제어부를구비한다. 상기도우너및 리모트유니트의경우데이지체인형태로용이하게확장되어커버리지를넓일수 있으며, 멀티홉을위한릴레이형태로도활용이가능하여용량증대를위한스몰셀기반차세대통신시스템에적합하다.
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公开(公告)号：KR101679230B1
公开(公告)日：2016-11-24
申请号：KR1020150094677
申请日：2015-07-02
Applicant: 서강대학교산학협력단
IPC: H03F1/32
Abstract: 본발명은전력증폭기의비선형특성을보상하는다항식디지털전치왜곡장치및 그방법에관한것으로, 다항식디지털전치왜곡기를이용하여직렬로연결된복수개의전력증폭기의비선형특성을보상하는방법은, 직렬로연결하고자하는복수개의전력증폭기각각의입출력특성데이터를추출하고, 각각의입출력특성데이터로부터각각의전력증폭기에대응하는다항식디지털전치왜곡기의계수들을추출하며, 추출된계수가적용된복수개의다항식디지털전치왜곡기를직렬로연결하고, 다항식디지털전치왜곡기의계수를추출하는방법은, 입출력특성데이터에볼테라급수를적용하여다항식형태의입출력특성을추정하고, 다항식형태의입출력특성에 LMS(Least Mean Squares) 알고리즘을적용하여다항식디지털전치왜곡기의계수를결정하고, 상기계수를입력전력의진폭변조구간의주소에따라저장함으로써, 복수개의전력증폭기의비선형특성을보상한다.따라서, 직렬로연결된복수개의전력증폭기에대한계수를각각추출하고, 추출된각각의계수가적용된복수개의다항식디지털전치왜곡기를직렬로연결하여여러개의함수형태로이루어진비선형특성을보상하는효과가있다.
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公开(公告)号：KR1020150048624A
公开(公告)日：2015-05-07
申请号：KR1020140122801
申请日：2014-09-16
Applicant: 주식회사 케이엠더블유 , 서강대학교산학협력단
IPC: H04B7/155
CPC classification number: H04W56/001 , H04B7/155 , H04W88/085
Abstract: 본발명은이동통신기지국시스템에있어서; 베이스밴드장비와연결되는도우너유니트와; 기지국안테나측에설치되는리모트유니트를포함하며; 도우너유니트는베이스밴드장비와의인터페이스를처리하는디지털신호처리부를포함하는베이스밴드신호처리부와, 상기베이스밴드신호처리부와상기리모트유니트사이의무선통신신호를처리하는무선통신부와베이스밴드장비로부터의동기신호및 통신제어신호를처리하는동기및 통신제어부를구비하며; 리모트유니트는, 기지국안테나와의 MIMO 인터페이스를처리하는서비스신호처리부와, 상기서비스신호처리부와상기도우너유니트사이의무선통신신호를처리하는무선통신부와, 상기도우너유니트로부터의동기신호및 통신제어신호를처리하는동기및 통신제어부를구비한다. 상기도우너및 리모트유니트의경우데이지체인형태로용이하게확장되어커버리지를넓일수 있으며, 멀티홉을위한릴레이형태로도활용이가능하여용량증대를위한스몰셀기반차세대통신시스템에적합하다.
Abstract translation: 移动通信基站系统技术领域本发明涉及一种移动通信基站系统，包括：与基带单元连接的施主单元; 以及安装在基站天线侧的远程单元，其中所述施主单元包括：基带信号处理部，包括用于处理与所述基带单元的接口的数字信号处理部，用于处理所述基带的无线通信信号的无线通信部 信号处理部分和远程单元，以及用于处理来自基带单元的同步信号和通信控制信号的同步和通信控制部分，并且其中远程单元具有用于处理与基站天线的MIMO接口的服务信号处理部分 用于处理服务信号处理部分和施主单元之间的无线通信信号的无线通信部件，以及用于处理来自供体单元的同步信号和通信控制信号的同步和通信控制部分。 供体单元和远程单元可以以菊花链方式容易地扩展，从而扩大覆盖范围，并且还可以用于多跳中继，因此适合用于容量扩展的基于小区的下一代通信系统。
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公开(公告)号：KR1020100107278A
公开(公告)日：2010-10-05
申请号：KR1020090025490
申请日：2009-03-25
Applicant: 세원텔레텍 주식회사 , 서강대학교산학협력단
CPC classification number: H04B7/15557 , H04B7/15564 , H04B7/15592
Abstract: PURPOSE: A method for operating a relay station is provided to improve the quality of a transmission signal and to increase a transmission rate by utilizing multiple bands and a collaborative transmission. CONSTITUTION: A method for operating a relay station comprises the steps of: giving feedback for an SINR value of a link, estimated in a terminal, to a base station; transmitting data to a base station-relay station link by using an allocated sub-frame; performing a collaborative transmission by using a sub frame allocated after the data transmission is performed; and allocating a band to each link for the data transmission and collaborative transmission.
Abstract translation: 目的：提供一种操作中继站的方法，以提高传输信号的质量，并通过利用多个频带和协作传输来提高传输速率。 构成：用于操作中继站的方法包括以下步骤：向终端提供在终端估计的链路的SINR值的反馈; 通过使用分配的子帧向基站中继站链路发送数据; 通过使用在执行数据传输之后分配的子帧来执行协作传输; 并将频带分配给每个链路用于数据传输和协作传输。
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公开(公告)号：KR101791209B1
公开(公告)日：2017-11-20
申请号：KR1020160082442
申请日：2016-06-30
Applicant: 서강대학교산학협력단 , 주식회사 케이엠더블유
Abstract: 본발명은이동통신망프론트홀시스템에관한것으로서, 디지털유닛은이동통신망프론트홀시스템에있어서, 밀리미터파를이용하여라디오유닛과의통신을수행하는통신부, 및상기라디오유닛과의신호송수신을통해통신방식을제어하는처리부를포함하고, 상기통신방식은, 무선통신여부, 안테나어레이형태, 연결되는라디오유닛의수, 또는 RF 체인의형태중 하나이상을포함하는것을특징으로함으로써, 디지털유닛과라디오유닛이밀리미터파대역의무선구간으로연결되고, 코드북을기반으로한 대규모안테나어레이와다중사용자 MIMO 전송기술을통해하나의디지털유닛당다수의라디오유닛가연결되어프론트홀시스템의성능을개선하는구조를제공할수 있다.
Abstract translation: 移动通信系统前厅系统技术领域本发明涉及一种移动通信网络前厅系统，更具体地，涉及一种移动通信系统前厅系统，其中数字单元包括用于使用毫米波执行与无线电单元的通信的通信单元， 其特征在于，通信方法包括是否执行无线电通信，天线阵列类型，连接的无线电单元的数量或RF链的形式中的至少一个，使得数字单元和无线电单元 基于码本和多用户MIMO传输技术的大型天线阵列可以连接到毫米波段的无线电部分，以通过将每个数字单元连接多个无线电单元来提供用于改善前部大厅系统的性能的结构 。
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